US 8,264,432 B2Granted

Display device

AssigneesHitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.

InventorsMasato Ishii, Naruhiko Kasai, Tohru Kohno, Hajime Akimoto

Life of this patent

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Abstract

An image display device comprises a unit which divides one line into a plurality of blocks (blocks A, B, and C) in a horizontal direction and detects in parallel, a unit which collectively detects a plurality of lines (lines A and B) in a vertical direction in parallel. The unit detects a pixel state of a pixel of the block (for example, block A) and a pixel state of the same pixel as an adjacent block (for example, block B), and corrects a variation between the detection result of the block and the detection result of the adjacent block. The unit detects a pixel state of a pixel through the line (for example, line A) and a pixel state of the same pixel through a different line (for example, line B), and corrects a variation between the detection result of the line and the detection result of the different line.

Claims3

Dependent claims

A image display device including a display section which includes a plurality of pixels, a first line for inputting a display signal to the pixels, and a second line for outputting pixel states of the pixels, the image display device comprising:

a parallel detection unit which divides the plurality of pixels in the display section into a plurality of groups and detects pixel states in parallel, the parallel detection unit including:
a first parallel detection unit which divides at least one third line, into a plurality of blocks in a horizontal direction and which detects pixel states of said pixels from said plurality of blocks in parallel,
a second parallel detection unit which collectively detects pixel states of said pixels in parallel from a plurality of vertical lines in the display section, and
a controller which controls the first and second parallel detection units in parallel.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 12/496,783Filed 2 Jul 2009
Priority: JP 2008-2050498 Aug 2008
Published: US 2010/0033410 A111 Feb 2010
Granted: 11 Sep 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G09G 3/3233
Using an active matrix: with pixel circuitry controlling the current through the light-emitting element
G09G 2320/0233
Improving the quality of display appearance: improving the luminance or brightness uniformity across the screen
G09G 2320/0285
Improving the quality of display appearance: using tables for spatial correction of display data
G09G 2320/0295
By monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel: by monitoring each display pixel