Title:
ディザリングによるLCOS表示装置の輪郭低減方法及びシステム
Document Type and Number:
Japanese Patent JP2004516520
Kind Code:
A
Abstract:
A method ( 30 ) of reducing contouring in a liquid crystal on silicon (LCOS) display can include receiving a frame-doubled input signal ( 32 ) comprising a positive picture and a negative picture. A first dither ( 36 ) specified by a gamma table can be applied to the input signal. The first dither can selectively modify a primary-color gamma value of the negative picture or the positive picture. Also, a second dither ( 34 ) can be applied to the input signal at an input of the gamma table. The first and second dither can result in an output signal having reduced brightness level repetition for consecutive input levels.
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Inventors:
Willis, Donald, Henry
Application Number:
JP2002552294A
Publication Date:
June 03, 2004
Filing Date:
December 18, 2001
Export Citation:
Assignee:
Thomson Licensing S.A.
International Classes:
G09G3/36; G09G3/20; G09G5/02; G09G5/10; H03M1/20; H04N1/00; H04N5/21; H04N5/74; H04N7/015; H04N11/24; H04N; (IPC1-7): G09G3/36; G09G3/20; H03M1/20; H04N5/21; H04N5/74
Domestic Patent References:
| JPH1115444A | 1999-01-22 | |||
| JPH09185707A | 1997-07-15 | |||
| JP2000352954A | 2000-12-19 | |||
| JP2001337667A | 2001-12-07 |
Foreign References:
| WO2000070598A1 | 2000-11-23 |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito