Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-11-22
2011-11-08
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S087000
Reexamination Certificate
active
08054265
ABSTRACT:
This invention relates to a liquid crystal display device that minimizes picture quality deterioration caused by signal distortion. The present invention selects an area within an image, which has a rapidly increasing or decreasing gamma voltage, identifies a border delineating two different intensity regions within the area, computes an average intensity within the area, and weights the gamma voltage for each pixel within the area based on the average intensity. A liquid crystal display device according to the present invention includes: a liquid crystal display panel; an analyzer analyzing a brightness characteristic of data in an area within an image; an average video signal voltage generator calculating an average brightness value in the area; a bordering value processing part calculating a bordering brightness value in the area; and a weighting part adjusting a pixel voltage according to the average brightness value and the bordering brightness value.
REFERENCES:
patent: 4353092 (1982-10-01), Bailey et al.
patent: 5063607 (1991-11-01), FitzHenry et al.
patent: 5142469 (1992-08-01), Weisenborn
patent: 5490222 (1996-02-01), Sugimoto
patent: 5594807 (1997-01-01), Liu
patent: 5598184 (1997-01-01), Barkans
patent: 5734746 (1998-03-01), Jaspers
patent: 5742704 (1998-04-01), Suzuki et al.
patent: 5748802 (1998-05-01), Winkelman
patent: 5793886 (1998-08-01), Cok
patent: 6023533 (2000-02-01), Sano et al.
patent: 6064775 (2000-05-01), Suzuki et al.
patent: 6559837 (2003-05-01), Lasneski et al.
patent: 6694051 (2004-02-01), Yamazoe et al.
patent: 6795053 (2004-09-01), Funamoto et al.
patent: 6804383 (2004-10-01), Ogino
patent: 6970605 (2005-11-01), Kondo et al.
patent: 7010163 (2006-03-01), Weiss
patent: 7154556 (2006-12-01), Wang et al.
patent: 7209595 (2007-04-01), Kondo et al.
patent: 7515205 (2009-04-01), Wang et al.
patent: 2001/0033260 (2001-10-01), Nishitani et al.
patent: 2003/0169248 (2003-09-01), Kim et al.
patent: 2004/0189586 (2004-09-01), Nagase
patent: 2004/0227712 (2004-11-01), Miyasaka et al.
patent: 2005/0057485 (2005-03-01), Diefenbaugh
patent: 2005/0104827 (2005-05-01), Baik
patent: 2005/0140616 (2005-06-01), Sohn et al.
patent: 2006/0008174 (2006-01-01), Avinash et al.
patent: 2003-0040127 (2004-07-01), None
patent: 2004057882 (2004-07-01), None
Threshold Selection Using Quadtrees Wu, Angela Y.; Hong, Tsai-Hong; Rosenfeld, Azriel; Pattern Analysis and Machine Intelligence, IEEE Transactions on vol. PAMI-4, Issue 1, Jan. 1982 pp. 90-94.
An improved moment-preserving auto threshold image segmentation algorithm Shitu Luo; Qi Zhang; Feilu Luo; Yanling Wang; Zhiyong Chen; Information Acquisition, 2004. Proceedings. International Conference on Jun. 21-25, 2004 pp. 316-318.
Image Smoothing Based on Neighbor Linking Eklundh, J. O.; Rosenfeld, A.; Pattern Analysis and Machine Intelligence, IEEE Transactions on vol. PAMI-3, Issue 6, Nov. 1981 pp. 679-683.
DLS: Dynamic Backlight Luminance Scaling of Liquid crystal Display Chang, N.; Choi, I.; Shim, H. Very Large Scale Intergration (VLSI) Systems, IEEE Transactions on vol. 12, No. 8, Aug. 2004, pp. 837-846.
Harris Dorothy
Hjerpe Richard
LG Display Co. Ltd.
McKenna Long & Aldridge LLP
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