Liquid crystal display device
AssigneeAdvanced Display Inc.
InventorHitoshi Koyama
Life of this patent
Estimating the term…
Abstract
An active matrix-type liquid crystal display device is provided with a black matrix which prevents light leakage between pixels, wherein the apertures in the black matrix in panel peripheral regions are made smaller than the apertures in the black matrix in the panel center region. Consequently, the occurrence of light leakage due to alignment anomalies arising from the horizontal-direction electric field between the signal lines and scanning lines and the pixel electrodes can be suppressed, and display quality can be enhanced without detracting from manufacturing efficiency or yield and without reducing the brightness of the liquid crystal display device, so that this invention affords excellent advantages.
Claims10
A liquid crystal display device, comprising:
- a display area including a plurality of pixels in a matrix layout;
- and
- a black matrix formed over the display area and configured to prevent light leakage between the plurality of pixels, said black matrix comprising a panel border, a panel peripheral region, and a panel center region, said panel peripheral region and said panel center region each comprising apertures,
- wherein the apertures in the panel peripheral region are smaller than the apertures in the panel center region.
A color filter substrate, comprising:
- a display area including color filters for a plurality of pixels, said display area comprising a display area peripheral region and a display area center region;
- and
- a black matrix configured to prevent light leakage between the plurality of pixels and comprising apertures,
- wherein the apertures in a portion of the black matrix corresponding to the display area peripheral region are smaller than the apertures in a portion of the black matrix corresponding to the display area center region.
Dependencies are inferred from the claim text.