LCD with alignment layer having multiple alignments depending on color
AssigneeAu Optronics Corporation
InventorsJen-Lang Tung, Hau-Yuh Chang
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Abstract
A gamma correction LCD panel and a fabrication of the same are provided. In the method, a lower substrate is firstly painted with a photo-alignment material. An exposing step is then introduced to have the photo-alignment material absorbed different amounts of light exposure so as to create various photo-aligning effects with respect to RGB pixel devices. The lower substrate is then assembled with an upper substrate and has an LC layer inter-filled. Upon such an arrangement, the LC layers with respect to RGB illumination can be thus provided with various transparencies for further adjust the RGB gamma curves individually.
Claims19
A method of fabricating a gamma corrected LCD panel comprising the steps of:
- providing an upper panel and a lower panel;
- forming a first photo-alignment film on the upper surface of said lower panel;
- exposing said first photo-alignment film to show regions of different exposure levels and alignments with respect to RGB pixels;
- and
- filling an LC layer between said upper panel and said lower panel, and having said LC layer effected by said first photo-alignment film to show different transparency respective to the regions of said first photo-alignment film to correct RGB gamma curves of the LCD panel.
A gamma corrected LCD panel comprising:
- a lower panel;
- an upper panel mounted above said lower panel;
- an LC layer interposed between said upper panel and said lower panel;
- and
- a first photo-alignment film formed on the upper surface of said lower substrate showing regions of different alignments with respect to pixel devices of different displaying colors.
A gamma corrected full color LCD panel with a plurality of pixel devices formed on a lower panel, and each pixel device comprising:
- three pixel electrodes providing operating voltages for displaying RGB colors;
- a photo-alignment film, which is formed on said pixel electrodes, having three regions of different alignments with respect said pixel electrodes;
- an LC layer formed on an upper surface of said photo-alignment film;
- and
- a color filter formed on said LC layer to result the RGB displaying colors.
Dependencies are inferred from the claim text.