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US 2002/0118322 A1Published application
Substrate for a liquid crystal device, liquid crystal device and projection type display device
AssigneeSeiko Epson Corporation
InventorMasao Murade
Life of this patent
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Abstract
Placement of a first light shielding film (7) at least below the channel region (1c) of a TFT which drives a pixel, and of a second light shielding film (3) above the same prevents impingement of light coming from above or from below on that channel region (1c). Further, a second light shielding film (3) is formed to cover the channel region (1c) and the first light shielding film (7), thereby to prevent the surface of the first light shielding film (7) from direct exposure to light.
Claims7
A liquid crystal device, comprising:
- a first non-pixel region formed in adjoining pixel electrodes;
- a second non-pixel region formed in adjoining pixel electrodes, and crossing the first non-pixel region;
- a data line formed along the first non-pixel region;
- a scan line formed along the second non-pixel region;
- a thin film transistor electrically connected to the data line and the scan line;
- a first light-shielding member formed over at least a channel region of the thin film transistor, that extends along the first non-pixel region;
- and
- a second light-shielding member formed under at least a channel region of the thin film transistor, that extends along the second non-pixel region;
- wherein the second light-shielding member has an extension region formed in the first non-pixel region.
6 more elements
Dependencies are inferred from the claim text.