US6744443B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time sequential lookup table method for a display
Assignee: Emerson Radio Corp
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Filing: 2001-11-19
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Granted: 2004-06-01
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Expires: 2021-11-19
Abstract
Abstract A method and apparatus employing lookup tables in a time sequential manner. A substrate has a display, a digital to analog converter, and a lookup table (LUT) formed thereon. The LUT is loaded with a LUT data set corresponding to an image subframe to be driven to the display. Successive LUT data sets corresponding to the next subframe are loaded after each subframe is driven to the display.
Inventors
- 👤 Douglas J. McKnight
- 👤 Douglas J. Gorny
- 👤 Lowell F. Bohn, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:06
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/14; G06F3/147; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36; G09G3/3611; G09G5/00; G09G5/02; G09G5/06; G09G2300/00; G09G2300/04; G09G2300/0404; G09G2300/0408; G09G2310/00; G09G2310/02; G09G2310/0235; G09G2320/00; G09G2320/02; G09G2320/0271; G09G2320/0276; G09G2330/00; G09G2330/04; G09G3/3614
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
61 words
A method of forming a display having a lookup table (LUT), said method comprising: forming a display on a first substrate; forming a digital to analog converter (DAC) on the first substrate with the display, wherein the DAC is coupled to the display; and forming a lookup table (LUT) on the first substrate, wherein the LUT is coupled to the DAC.
Claim 2
Independent Claim
61 words
A method of forming a display having a lookup table (LUT), said method comprising: forming a display on a first substrate; forming a digital to analog converter (DAC) on the first substrate with the display, wherein the DAC is coupled to the display; and forming a lookup table (LUT) on the first substrate, wherein the LUT is coupled to the DAC.
Claim 3
Dependent Claim
47 words
The method of claim 1 , further comprising: storing a plurality of LUT data sets in a storage device on a second substrate; and selecting with a state machine which LUT data set of the plurality of LUT data sets are to be loaded into the LUT.
Claim 4
Dependent Claim
34 words
The method of claim 2 , wherein the state machine cycles through a sequence of LUT data sets selected from the group consisting of R, G, B, {overscore (R)}, {overscore (G)} and {overscore (B)}.
Claim 5
Dependent Claim
20 words
The apparatus of claim 3 wherein the sequence includes the pattern R, {overscore (G)}, B, {overscore (R)}, G, {overscore (B)}.
Claim 6
Dependent Claim
25 words
The method of claim 3 , where the sequence alternates between a data set for a color and a data set for an inverted color.
Claim 7
Dependent Claim
29 words
The method of claim 2 further comprising: segregating incoming image data into monochrome subframes with a parser; and storing the subframes in the storage device with a memory controller.
Claim 8
Dependent Claim
21 words
The method of claim 2 , wherein the LUT data sets map an m-bit value into an n-bit value where n>m.
Claim 9
Dependent Claim
20 words
The method of claim 2 , wherein the LUT data sets adjust for non-linearity in the DAC and the display.
Claim 10
Dependent Claim
30 words
The method of claim 2 , wherein the plurality of LUT data sets includes a data set corresponding to at least one of a temperature range, and a contrast control.
Claim 11
Dependent Claim
27 words
The method of claim 2 , wherein the state machine cycles through R, G, B, LUT data sets and performs digital inversion of every second data set.
Claim 12
Dependent Claim
49 words
The method of claim 1 , wherein the display has a data path, the data path having a width of r pixels wherein one LUT and one DAC are formed on the substrate for each of the r pixels of the data path, wherein r is a positive integer.
Claim 13
Independent Claim
92 words
A method for a display system, said method comprising: forming a display on a first substrate; forming a lookup table (LUT) on the first substrate, wherein the LUT is coupled to the display; generating image frames from an image source; storing a plurality of subframes of the image frames; generating a plurality of LUT data sets corresponding to the stored plurality of subframes; storing the LUT data sets external to the first substrate; and sequentially loading the LUT data sets into the lookup table on the first substrate with a state machine.
Claim 14
Independent Claim
92 words
A method for a display system, said method comprising: forming a display on a first substrate; forming a lookup table (LUT) on the first substrate, wherein the LUT is coupled to the display; generating image frames from an image source; storing a plurality of subframes of the image frames; generating a plurality of LUT data sets corresponding to the stored plurality of subframes; storing the LUT data sets external to the first substrate; and sequentially loading the LUT data sets into the lookup table on the first substrate with a state machine.
Claim 15
Dependent Claim
20 words
The method of claim 12 , wherein the storage unit and the state machine are formed on a second substrate.
Claim 16
Dependent Claim
23 words
The method of claim 13 , wherein the LUT data sets are stored on the second substrate prior to loading into the LUT.
Claim 17
Dependent Claim
23 words
The method of claim 12 , wherein the subframes include a red (R) subframe, a green (G) subframe, and a blue (B) subframe.
Claim 18
Dependent Claim
27 words
The method of claim 12 , wherein a sequence in which the LUT is loaded alternates between a subframe data set and an inverted subframe data set.
Claim 19
Dependent Claim
19 words
The method of claim 12 , wherein the plurality of LUT data sets comprise sets corresponding to inverted subframes.
References Cited (Backward Citations)
US5673058A
Cited
US5355443A
Cited
US5717697A
Cited
US5838389A
Cited
US5736137A
Cited
US5699076A
Cited
EP0707305A2
Cited
EP0745969A2
Cited
US5959598A
Cited
US5867134A
Cited
US5801665A
Cited
US6046716A
Cited
US6108000A
Cited
EP0915361A1
Cited
EP0875881A2
Cited
US6097362A
Cited
US6166724A
Cited
US6373497B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2007-06-01 | 2007-12-01 | 2008-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-06-01 | 2011-12-01 | 2012-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-06-01 | 2015-12-01 | 2016-06-01 | $7700.00 | Window Closed / Lapsed |