US6144364A
Expired / Lapsed
US
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Display driving method and apparatus
Assignee: Hitachi Plasma Patent Licensing Co Ltd
•
Filing: 1996-10-23
•
Granted: 2000-11-07
•
Expires: 2016-10-23
Abstract
Abstract A display driving method drives a display to make a gradation display on a screen of the display depending on a length of a light emission time in each of sub fields forming 1 field, where 1 field is a time in which an image is displayed, N sub fields SF1 through SFN form 1 field, and each sub field includes an address display-time in which a wall charge is formed with respect to all pixels which are to emit light within the sub field and a sustain time which is equal to the light emission time and determines a luminance level. The display driving method includes the steps of setting the sustain times of each of the sub fields approximately constant within 1 field, and displaying image data on the display using N+1 gradation levels from a luminance level 0 to a luminance level N.
Inventors
- 👤 Yukio Otobe
- 👤 Masahiro Yoshida
- 👤 Nobuaki Otaka
- 👤 Masaya Tajima
- 👤 Katsuhiro Ishida
- 👤 Kiyotaka Ogawa
- 👤 Toshio Ueda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:43
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/28; G09G3/2803; G09G3/2007; G09G3/2018; G09G3/2022; G09G3/2025; G09G3/2029; G09G3/2044; G09G3/2051; G09G3/2059; G09G3/288; G09G3/291; G09G3/293; G09G3/2937; G09G3/294; G09G3/2946; G09G2320/00; G09G2320/02; G09G2320/0247; G09G2320/0261; G09G2320/0266; G09G2320/0271; G09G2320/0276; G09G2320/04; G09G2320/043; G09G2320/10; G09G2320/106; G09G2340/00; G09G2340/04; G09G2340/0407; G09G2340/0428; G09G3/204; G09G5/00; G09G5/36; G09G5/39; G09G5/399
Claims Analysis
Total Claims: 113
Claim 1
Independent Claim
105 words
A display driving method which makes a luminance representation depending on a length of a light emission time, said display driving method comprising the steps of: (a) generating a first image signal having a gradation levels from an input image signal having n gradation levels which satisfying a≦n, where n, a and b are integers; (b) generating a second image signal having b gradation levels from the input image signal while satisfying b<a≦n; and (c) switching between the first image signal and the second image signal in units of pixels within a line and outputting the switched one of the first and second image signals.
Claim 2
Dependent Claim
105 words
A display driving method which makes a luminance representation depending on a length of a light emission time, said display driving method comprising the steps of: (a) generating a first image signal having a gradation levels from an input image signal having n gradation levels which satisfying a≦n, where n, a and b are integers; (b) generating a second image signal having b gradation levels from the input image signal while satisfying b<a≦n; and (c) switching between the first image signal and the second image signal in units of pixels within a line and outputting the switched one of the first and second image signals.
Claim 3
Dependent Claim
29 words
The display driving method as claimed in claim 1, wherein said step (a) carries out an error diffusion process after multiplying a gain coefficient to the input image signal.
Claim 4
Dependent Claim
51 words
The display driving method as claimed in claim 2, wherein said step (a) includes carrying out a correction process with respect to the input image signal using an inverse function of a non-linear display characteristic of the display so as to correct the non-linear display characteristic into a linear display characteristic.
Claim 5
Dependent Claim
29 words
The display driving method as claimed in claim 1, wherein said step (b) carries out an error diffusion process after multiplying a gain coefficient to the input image signal.
Claim 6
Dependent Claim
51 words
The display driving method as claimed in claim 4, wherein said step (b) includes carrying out a correction process with respect to the input image signal using an inverse function of a non-linear display characteristic of the display so as to correct the non-linear display characteristic into a linear display characteristic.
Claim 7
Dependent Claim
30 words
The display driving method as claimed in claim 1, wherein said step (c) carries out the switching of the first and second image signals based on the first image signal.
Claim 8
Dependent Claim
47 words
The display driving method as claimed in claim 6, wherein said step (c) carries out the switching to selectively output the second image signal only when a minute change in a luminance level of the input image signal greatly changes a concentration of the light emission time.
Claim 9
Dependent Claim
30 words
The display driving method as claimed in claim 1, wherein said step (c) carries out the switching of the first and second image signals based on the input image signal.
Claim 10
Dependent Claim
39 words
The display driving method as claimed in claim 8, wherein said step (c) carries out the switching based on a difference between the input image signal of a present field and the input image signal of one field before.
Claim 11
Dependent Claim
34 words
The display driving method as claimed in claim 9, wherein said step (c) carries out the switching to selectively output the second image signal only when the difference is greater than a threshold value.
Claim 12
Dependent Claim
46 words
The display driving method as claimed in claim 9, wherein said step (c) includes generating a luminance signal in which three primary colors are mixed with a predetermined ratio with respect to the input image signal, and obtains the difference with respect to the luminance signal.
Claim 13
Dependent Claim
56 words
The display driving method as claimed in claim 9, which further comprises the steps of: (d) obtaining a moving quantity within an image indicated by the input image signal with respect to each of three primary colors, said step (c) carrying out the switching of the first and second image signals based on the moving quantity.
Claim 14
Dependent Claim
39 words
The display driving method as claimed in claim 8, wherein said step (c) carries out the switching based on a difference between the input image signal of a present field and the input image signal of two fields before.
Claim 15
Dependent Claim
34 words
The display driving method as claimed in claim 13, wherein said step (c) carries out the switching to selectively output the second image signal only when the difference is greater than a threshold value.
Claim 16
Dependent Claim
46 words
The display driving method as claimed in claim 13, wherein said step (c) includes generating a luminance signal in which three primary colors are mixed with a predetermined ratio with respect to the input image signal, and obtains the difference with respect to the luminance signal.
Claim 17
Dependent Claim
56 words
The display driving method as claimed in claim 13, which further comprises the steps of: (d) obtaining a moving quantity within an image indicated by the input image signal with respect to each of three primary colors, said step (c) carrying out the switching of the first and second image signals based on the moving quantity.
Claim 18
Dependent Claim
60 words
The display driving method as claimed in claim 8, wherein said step (c) carries out the switching based on a difference between the input image signal of a present field and the input image signal of one field before, and a difference between the input image signal of the present field and the input image signal of two fields before.
Claim 19
Dependent Claim
36 words
The display driving method as claimed in claim 17, wherein said step (c) carries out the switching to selectively output the second image signal only when each of the differences is greater than a threshold value.
Claim 20
Dependent Claim
46 words
The display driving method as claimed in claim 17, wherein said step (c) includes generating a luminance signal in which three primary colors are mixed with a predetermined ratio with respect to the input image signal, and obtains the differences with respect to the luminance signal.
Claim 21
Dependent Claim
56 words
The display driving method as claimed in claim 17, which further comprises the steps of: (d) obtaining a moving quantity within an image indicated by the input image signal with respect to each of three primary colors, said step (c) carrying out the switching of the first and second image signals based on the moving quantity.
Claim 22
Dependent Claim
39 words
The display driving method as claimed in claim 8, wherein said step (c) carries out the switching based on a difference between the input image signal of a present line and the input image signal of one line before.
Claim 23
Dependent Claim
34 words
The display driving method as claimed in claim 21, wherein said step (c) carries out the switching to selectively output the first image signal only when the difference is greater than a threshold value.
Claim 24
Dependent Claim
38 words
The display driving method as claimed in claim 8, wherein said step (c) carries out the switching based on a difference between the input image signal of present pixel and the input image signal of one pixel before.
Claim 25
Dependent Claim
34 words
The display driving method as claimed in claim 23, wherein said step (c) carries out the switching to selectively output the first image signal only when the difference is greater than a threshold value.
Claim 26
Dependent Claim
35 words
The display driving method as claimed in claim 1, wherein said step (c) carries out the switching of the first and second image signals based on the input image signal and the first image signal.
Claim 27
Dependent Claim
67 words
The display driving method as claimed in claim 1, wherein: the step (a) of generating a first image signal having a gradation levels further comprises carrying out an error diffusion process with respect to the input image signal; and the step (b) of generating a second image signal having b gradation levels further comprises carrying out an error diffusion process with respect to the input image signal.
Claim 28
Dependent Claim
123 words
A display driving method which makes a luminance representation depending on a length of a light emission time, said display driving method comprising the steps of: (a) generating a first image signal having a gradation levels by carrying out an error diffusion process with respect to an input image signal having n gradation levels while satisfying a<n, where n, a and b are integers; (b) generating a second image signal having b gradation levels by carrying out an error diffusion process with respect to the input image signal while satisfying b<a<n; and (c) switching between the first image signal and the second image signal in units of pixels within a line and outputting the switched one of the first and second image signals.
Claim 29
Dependent Claim
123 words
A display driving method which makes a luminance representation depending on a length of a light emission time, said display driving method comprising the steps of: (a) generating a first image signal having a gradation levels by carrying out an error diffusion process with respect to an input image signal having n gradation levels while satisfying a<n, where n, a and b are integers; (b) generating a second image signal having b gradation levels by carrying out an error diffusion process with respect to the input image signal while satisfying b<a<n; and (c) switching between the first image signal and the second image signal in units of pixels within a line and outputting the switched one of the first and second image signals.
Claim 30
Dependent Claim
40 words
The display driving method as claimed in claim 27, wherein said step (b) converts each luminance value of an image signal having b gradation levels after the error diffusion process into an equivalent luminance value of the first image signal.
Claim 31
Dependent Claim
29 words
The display driving method as claimed in claim 27, wherein said step (a) carries out an error diffusion process after multiplying a gain coefficient to the input image signal.
Claim 32
Dependent Claim
51 words
The display driving method as claimed in claim 29, wherein said step (a) includes carrying out a correction process with respect to the input image signal using an inverse function of a non-linear display characteristic of the display so as to correct the non-linear display characteristic into a linear display characteristic.
Claim 33
Dependent Claim
29 words
The display driving method as claimed in claim 27, wherein said step (b) carries out an error diffusion process after multiplying a gain coefficient to the input image signal.
Claim 34
Dependent Claim
51 words
The display driving method as claimed in claim 31, wherein said step (b) includes carrying out a correction process with respect to the input image signal using an inverse function of a non-linear display characteristic of the display so as to correct the non-linear display characteristic into a linear display characteristic.
Claim 35
Dependent Claim
30 words
The display driving method as claimed in claim 27, wherein said step (c) carries out the switching of the first and second image signals based on the first image signal.
Claim 36
Dependent Claim
47 words
The display driving method as claimed in claim 33, wherein said step (c) carries out the switching to selectively output the second image signal only when a minute change in a luminance level of the input image signal greatly changes a concentration of the light emission time.
Claim 37
Dependent Claim
30 words
The display driving method as claimed in claim 27, wherein said step (c) carries out the switching of the first and second image signals based on the input image signal.
Claim 38
Dependent Claim
39 words
The display driving method as claimed in claim 35, wherein said step (c) carries out the switching based on a difference between the input image signal of a present field and the input image signal of one field before.
Claim 39
Dependent Claim
34 words
The display driving method as claimed in claim 36, wherein said step (c) carries out the switching to selectively output the second image signal only when the difference is greater than a threshold value.
Claim 40
Dependent Claim
46 words
The display driving method as claimed in claim 36, wherein said step (c) includes generating a luminance signal in which three primary colors are mixed with a predetermined ratio with respect to the input image signal, and obtains the difference with respect to the luminance signal.
Claim 41
Dependent Claim
56 words
The display driving method as claimed in claim 36, which further comprises the steps of: (d) obtaining a moving quantity within an image indicated by the input image signal with respect to each of three primary colors, said step (c) carrying out the switching of the first and second image signals based on the moving quantity.
Claim 42
Dependent Claim
39 words
The display driving method as claimed in claim 35, wherein said step (c) carries out the switching based on a difference between the input image signal of a present field and the input image signal of two fields before.
Claim 43
Dependent Claim
34 words
The display driving method as claimed in claim 40, wherein said step (c) carries out the switching to selectively output the second image signal only when the difference is greater than a threshold value.
Claim 44
Dependent Claim
46 words
The display driving method as claimed in claim 40, wherein said step (c) includes generating a luminance signal in which three primary colors are mixed with a predetermined ratio with respect to the input image signal, and obtains the difference with respect to the luminance signal.
Claim 45
Dependent Claim
56 words
The display driving method as claimed in claim 40, which further comprises the steps of: (d) obtaining a moving quantity within an image indicated by the input image signal with respect to each of three primary colors, said step (c) carrying out the switching of the first and second image signals based on the moving quantity.
Claim 46
Dependent Claim
60 words
The display driving method as claimed in claim 35, wherein said step (c) carries out the switching based on a difference between the input image signal of a present field and the input image signal of one field before, and a difference between the input image signal of the present field and the input image signal of two fields before.
Claim 47
Dependent Claim
36 words
The display driving method as claimed in claim 44, wherein said step (c) carries out the switching to selectively output the second image signal only when each of the differences is greater than a threshold value.
Claim 48
Dependent Claim
46 words
The display driving method as claimed in claim 44, wherein said step (c) includes generating a luminance signal in which three primary colors are mixed with a predetermined ratio with respect to the input image signal, and obtains the differences with respect to the luminance signal.
Claim 49
Dependent Claim
56 words
The display driving method as claimed in claim 44, which further comprises the steps of: (d) obtaining a moving quantity within an image indicated by the input image signal with respect to each of three primary colors, said step (c) carrying out the switching of the first and second image signals based on the moving quantity.
Claim 50
Dependent Claim
39 words
The display driving method as claimed in claim 35, wherein said step (c) carries out the switching based on a difference between the input image signal of a present line and the input image signal of one line before.
Claim 51
Dependent Claim
34 words
The display driving method as claimed in claim 48, wherein said step (c) carries out the switching to selectively output the first image signal only when the difference is greater than a threshold value.
Claim 52
Dependent Claim
39 words
The display driving method as claimed in claim 35, wherein said step (c) carries out the switching based on a difference between the input image signal of a present pixel and the input image signal of one pixel before.
Claim 53
Dependent Claim
34 words
The display driving method as claimed in claim 50, wherein said step (c) carries out the switching to selectively output the first image signal only when the difference is greater than a threshold value.
Claim 54
Dependent Claim
35 words
The display driving method as claimed in claim 27, wherein said step (c) carries out the switching of the first and second image signals based on the input image signal and the first image signal.
Claim 55
Dependent Claim
110 words
A display driving apparatus which makes a luminance representation depending on a length of a light emission time, said display driving apparatus comprising: a first processing path generating a first image signal having a gradation levels from an input image signal having n gradation levels while satisfying a≦n, where n, a and b are integers; a second processing path generating a second image signal having b gradation levels from the input image signal while satisfying b<a≦n; and switching means for switching between the first image signal and the second image signal in units of pixels within a line and outputting the switched one of the first and second image signals.
Claim 56
Dependent Claim
110 words
A display driving apparatus which makes a luminance representation depending on a length of a light emission time, said display driving apparatus comprising: a first processing path generating a first image signal having a gradation levels from an input image signal having n gradation levels while satisfying a≦n, where n, a and b are integers; a second processing path generating a second image signal having b gradation levels from the input image signal while satisfying b<a≦n; and switching means for switching between the first image signal and the second image signal in units of pixels within a line and outputting the switched one of the first and second image signals.
Claim 57
Dependent Claim
33 words
The display driving apparatus as claimed in claim 53, wherein said first processing path includes means for carrying out an error diffusion process after multiplying a gain coefficient to the input image signal.
Claim 58
Dependent Claim
54 words
The display driving apparatus as claimed in claim 54, wherein said first processing path includes means for carrying out a correction process with respect to the input image signal using an inverse function of a non-linear display characteristic of the display so as to correct the non-linear display characteristic into a linear display characteristic.
Claim 59
Dependent Claim
33 words
The display driving apparatus as claimed in claim 53, wherein said second processing path includes means for carrying out an error diffusion process after multiplying a gain coefficient to the input image signal.
Claim 60
Dependent Claim
54 words
The display driving apparatus as claimed in claim 56, wherein said second processing path includes means for carrying out a correction process with respect to the input image signal using an inverse function of a non-linear display characteristic of the display so as to correct the non-linear display characteristic into a linear display characteristic.
Claim 61
Dependent Claim
30 words
The display driving apparatus as claimed in claim 53, wherein said switching means carries out the switching of the first and second image signals based on the first image signal.
Claim 62
Dependent Claim
47 words
The display driving apparatus as claimed in claim 58, wherein said switching means carries out the switching to selectively output the second image signal only when a minute change in a luminance level of the input image signal greatly changes a concentration of the light emission time.
Claim 63
Dependent Claim
30 words
The display driving apparatus as claimed in claim 53, wherein said switching means carries out the switching of the first and second image signals based on the input image signal.
Claim 64
Dependent Claim
39 words
The display driving apparatus as claimed in claim 60, wherein said switching means carries out the switching based on a difference between the input image signal of a present field and the input image signal of one field before.
Claim 65
Dependent Claim
34 words
The display driving apparatus as claimed in claim 61, wherein said switching means carries out the switching to selectively output the second image signal only when the difference is greater than a threshold value.
Claim 66
Dependent Claim
48 words
The display driving apparatus as claimed in claim 61, wherein said switching means includes means for generating a luminance signal in which three primary colors are mixed with a predetermined ratio with respect to the input image signal, and obtains the difference with respect to the luminance signal.
Claim 67
Dependent Claim
54 words
The display driving apparatus as claimed in claim 61, which further comprises: means for obtaining a moving quantity within an image indicated by the input image signal with respect to each of three primary colors, said switching means carrying out the switching of the first and second image signals based on the moving quantity.
Claim 68
Dependent Claim
39 words
The display driving apparatus as claimed in claim 60, wherein said switching means carries out the switching based on a difference between the input image signal of a present field and the input image signal of two fields before.
Claim 69
Dependent Claim
34 words
The display driving apparatus as claimed in claim 65, wherein said switching means carries out the switching to selectively output the second image signal only when the difference is greater than a threshold value.
Claim 70
Dependent Claim
48 words
The display driving apparatus as claimed in claim 65, wherein said switching means includes means for generating a luminance signal in which three primary colors are mixed with a predetermined ratio with respect to the input image signal, and obtains the difference with respect to the luminance signal.
Claim 71
Dependent Claim
54 words
The display driving apparatus as claimed in claim 65, which further comprises: means for obtaining a moving quantity within an image indicated by the input image signal with respect to each of three primary colors, said switching means carrying out the switching of the first and second image signals based on the moving quantity.
Claim 72
Dependent Claim
60 words
The display driving apparatus as claimed in claim 60, wherein said switching means carries out the switching based on a difference between the input image signal of a present field and the input image signal of one field before, and a difference between the input image signal of the present field and the input image signal of two fields before.
Claim 73
Dependent Claim
36 words
The display driving apparatus as claimed in claim 69, wherein said switching means carries out the switching to selectively output the second image signal only when each of the differences is greater than a threshold value.
Claim 74
Dependent Claim
48 words
The display driving apparatus as claimed in claim 69, wherein said switching means includes means for generating a luminance signal in which three primary colors are mixed with a predetermined ratio with respect to the input image signal, and obtains the differences with respect to the luminance signal.
Claim 75
Dependent Claim
54 words
The display driving apparatus as claimed in claim 69, which further comprises: means for obtaining a moving quantity within an image indicated by the input image signal with respect to each of three primary colors, said switching means carrying out the switching of the first and second image signals based on the moving quantity.
Claim 76
Dependent Claim
39 words
The display driving apparatus as claimed in claim 60, wherein said switching means carries out the switching based on a difference between the input image signal of a present line and the input image signal of one line before.
Claim 77
Dependent Claim
34 words
The display driving apparatus as claimed in claim 73, wherein said switching means carries out the switching to selectively output the first image signal only when the difference is greater than a threshold value.
Claim 78
Dependent Claim
39 words
The display driving apparatus as claimed in claim 60, wherein said switching means carries out the switching based on a difference between the input image signal of a present pixels and the input image signal of one pixel before.
Claim 79
Dependent Claim
34 words
The display driving apparatus as claimed in claim 75, wherein said switching means carries out the switching to selectively output the first image signal only when the difference is greater than a threshold value.
Claim 80
Dependent Claim
35 words
The display driving apparatus as claimed in claim 53, wherein said switching means carries out the switching of the first and second image signals based on the input image signal and the first image signal.
Claim 81
Dependent Claim
65 words
The display driving apparatus as claimed in claim 53, wherein: the first processing path generates the first image signal having a gradation levels by carrying out an error diffusion process with respect to the input image signal; and the second processing path generates the second image signal having b gradation levels by carrying out an error diffusion process with respect to the input image signal.
Claim 82
Dependent Claim
128 words
The display driving apparatus which makes a luminance representation depending on a length of a light emission time, said display driving apparatus comprising: a first processing path generating a first image signal having a gradation levels by carrying out an error diffusion process with respect to an input image signal having n gradation levels while satisfying a<n, where n, a and b are integers; a second processing path generating a second image signal having b gradation levels by carrying out an error diffusion process with respect to the input image signal while satisfying b<a<n; and switching means for switching between the first image signal and the second image signal in units of pixels within a line and outputting the switched one of the first and second image signals.
Claim 83
Dependent Claim
128 words
The display driving apparatus which makes a luminance representation depending on a length of a light emission time, said display driving apparatus comprising: a first processing path generating a first image signal having a gradation levels by carrying out an error diffusion process with respect to an input image signal having n gradation levels while satisfying a<n, where n, a and b are integers; a second processing path generating a second image signal having b gradation levels by carrying out an error diffusion process with respect to the input image signal while satisfying b<a<n; and switching means for switching between the first image signal and the second image signal in units of pixels within a line and outputting the switched one of the first and second image signals.
Claim 84
Dependent Claim
44 words
The display driving apparatus as claimed in claim 79, wherein said second processing path includes means for converting each luminance value of an image signal having b gradation levels after the error diffusion process into an equivalent luminance value of the first image signal.
Claim 85
Dependent Claim
33 words
The display driving apparatus as claimed in claim 79, wherein said first processing path includes means for carrying out an error diffusion process after multiplying a gain coefficient to the input image signal.
Claim 86
Dependent Claim
54 words
The display driving apparatus as claimed in claim 81, wherein said first processing path includes means for carrying out a correction process with respect to the input image signal using an inverse function of a non-linear display characteristic of the display so as to correct the non-linear display characteristic into a linear display characteristic.
Claim 87
Dependent Claim
33 words
The display driving apparatus as claimed in claim 79, wherein said second processing path includes means for carrying out an error diffusion process after multiplying a gain coefficient to the input image signal.
Claim 88
Dependent Claim
54 words
The display driving apparatus as claimed in claim 83, wherein said second processing path includes means for carrying out a correction process with respect to the input image signal using an inverse function of a non-linear display characteristic of the display so as to correct the non-linear display characteristic into a linear display characteristic.
Claim 89
Dependent Claim
30 words
The display driving apparatus as claimed in claim 79, wherein said switching means carries out the switching of the first and second image signals based on the first image signal.
Claim 90
Dependent Claim
47 words
The display driving apparatus as claimed in claim 85, wherein said switching means carries out the switching to selectively output the second image signal only when a minute change in a luminance level of the input image signal greatly changes a concentration of the light emission time.
Claim 91
Dependent Claim
30 words
The display driving apparatus as claimed in claim 79, wherein said switching means carries out the switching of the first and second image signals based on the input image signal.
Claim 92
Dependent Claim
38 words
The display driving apparatus as claimed in claim 87, wherein said switching means carries out the switching based on a difference between the input image signal of present field and the input image signal of one field before.
Claim 93
Dependent Claim
34 words
The display driving apparatus as claimed in claim 88, wherein said switching means carries out the switching to selectively output the second image signal only when the difference is greater than a threshold value.
Claim 94
Dependent Claim
48 words
The display driving apparatus as claimed in claim 88, wherein said switching means includes means for generating a luminance signal in which three primary colors are mixed with a predetermined ratio with respect to the input image signal, and obtains the difference with respect to the luminance signal.
Claim 95
Dependent Claim
54 words
The display driving apparatus as claimed in claim 88, which further comprises: means for obtaining a moving quantity within an image indicated by the input image signal with respect to each of three primary colors, said switching means carrying out the switching of the first and second image signals based on the moving quantity.
Claim 96
Dependent Claim
39 words
The display driving apparatus as claimed in claim 87, wherein said switching means carries out the switching based on a difference between the input image signal of a present field and the input image signal of 2 fields before.
Claim 97
Dependent Claim
34 words
The display driving apparatus as claimed in claim 92, wherein said switching means carries out the switching to selectively output the second image signal only when the difference is greater than a threshold value.
Claim 98
Dependent Claim
48 words
The display driving apparatus as claimed in claim 92, wherein said switching means includes means for generating a luminance signal in which three primary colors are mixed with a predetermined ratio with respect to the input image signal, and obtains the difference with respect to the luminance signal.
Claim 99
Dependent Claim
54 words
The display driving apparatus as claimed in claim 92, which further comprises: means for obtaining a moving quantity within an image indicated by the input image signal with respect to each of three primary colors, said switching means carrying out the switching of the first and second image signals based on the moving quantity.
Claim 100
Dependent Claim
60 words
The display driving apparatus as claimed in claim 87, wherein said switching means carries out the switching based on a difference between the input image signal of a present field and the input image signal of one field before, and a difference between the input image signal of the present field and the input image signal of two fields before.
Claim 101
Dependent Claim
36 words
The display driving apparatus as claimed in claim 96, wherein said switching means carries out the switching to selectively output the second image signal only when each of the differences is greater than a threshold value.
Claim 102
Dependent Claim
48 words
The display driving apparatus as claimed in claim 96, wherein said switching means includes means for generating a luminance signal in which three primary colors are mixed with a predetermined ratio with respect to the input image signal, and obtains the differences with respect to the luminance signal.
Claim 103
Dependent Claim
54 words
The display driving apparatus as claimed in claim 96, which further comprises: means for obtaining a moving quantity within an image indicated by the input image signal with respect to each of three primary colors, said switching means carrying out the switching of the first and second image signals based on the moving quantity.
Claim 104
Dependent Claim
39 words
The display driving apparatus as claimed in claim 87, wherein said switching means carries out the switching based on a difference between the input image signal of a present line and the input image signal of one line before.
Claim 105
Dependent Claim
34 words
The display driving apparatus as claimed in claim 100, wherein said switching means carries out the switching to selectively output the first image signal only when the difference is greater than a threshold value.
Claim 106
Dependent Claim
39 words
The display driving apparatus as claimed in claim 87, wherein said switching means carries out the switching based on a difference between the input image signal of a present pixel and the input image signal of one pixel before.
Claim 107
Dependent Claim
34 words
The display driving apparatus as claimed in claim 102, wherein said switching means carries out the switching to selectively output the first image signal only when the difference is greater than a threshold value.
Claim 108
Dependent Claim
35 words
The display driving apparatus as claimed in claim 79, wherein said switching means carries out the switching of the first and second image signals based on the input image signal and the first image signal.
Claim 109
Dependent Claim
107 words
A display unit comprising: a display which makes a luminance representation depending on a length of a light emission time; a first processing path generating a first image signal having a gradation levels from an input image signal having n gradation levels while satisfying a≦n, where n, a and b are integers; a second processing path generating a second image signal having b gradation levels from the input image signal while satisfying b<a≦n; and switching means for switching between the first image signal and the second image signal in units of pixels within a line and outputting the switched one of the first and second image signals.
Claim 110
Dependent Claim
107 words
A display unit comprising: a display which makes a luminance representation depending on a length of a light emission time; a first processing path generating a first image signal having a gradation levels from an input image signal having n gradation levels while satisfying a≦n, where n, a and b are integers; a second processing path generating a second image signal having b gradation levels from the input image signal while satisfying b<a≦n; and switching means for switching between the first image signal and the second image signal in units of pixels within a line and outputting the switched one of the first and second image signals.
Claim 111
Dependent Claim
64 words
A display unit as claimed in claim 105, wherein: the first processing path generates the first image signal having a gradation levels by carrying out an error diffusion process with respect to an input image signal; and the second processing path generates the second image signal having b gradation levels by carrying out an error diffusion process with respect to the input image signal.
Claim 112
Dependent Claim
124 words
A display unit comprising: a display which makes a luminance representation depending on a length of a light emission time; a first processing path generating a first image signal having a gradation levels by carrying out an error diffusion process with respect to an input image signal having n gradation levels while satisfying a<n, wherein, a and b are integers; a second processing path generating a second image signal having b gradation levels by carrying out an error diffusion process with respect to the input image signal while satisfying b<a<n; and switching means for switching between the first image signal and the second image signal in units of pixels within a line and outputting the switched one of the first and second image signals.
Claim 113
Dependent Claim
124 words
A display unit comprising: a display which makes a luminance representation depending on a length of a light emission time; a first processing path generating a first image signal having a gradation levels by carrying out an error diffusion process with respect to an input image signal having n gradation levels while satisfying a<n, wherein, a and b are integers; a second processing path generating a second image signal having b gradation levels by carrying out an error diffusion process with respect to the input image signal while satisfying b<a<n; and switching means for switching between the first image signal and the second image signal in units of pixels within a line and outputting the switched one of the first and second image signals.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-11-07 | 2004-05-08 | 2004-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-11-07 | 2008-05-08 | 2008-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-11-07 | 2012-05-08 | 2012-11-07 | $7700.00 | Window Closed / Lapsed |