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US 5,182,620 AGranted
Active matrix display device
AssigneeSharp Kabushiki Kaisha
InventorsTakayuki Shimada, Yasuhiro Matsushima, Yutaka Takafuji
Life of this patent
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Abstract
An active matrix display includes pixel electrodes (4) which are formed over an insulating layer (17). The insulating layer (17) covers signal lines (2) which supply an image signal and also connect one pixel electrode (4) with another. The insulating layer (17) also covers an additional capacitor common line (8). The pixel electrodes (4) at least partially overlay the signal lines (2) and the additional capacitor common line (8), thereby achieving a larger numerical aperture for the display.
Claims7
An active matrix display device comprising:
- an insulated substrate;
- a semiconductor layer covering the substrate;
- a first insulating layer covering the semiconductor layer;
- a gate electrode and a capacitor electrode formed on the first insulating layer;
- a second insulating layer covering the first insulating layer and the gate electrode and capacitor electrode formed on the first insulating layer;
- a signal line for carrying an image signal formed on the second insulating layer and extending through holes in the second insulating layer and the first insulating layer for connection to the semiconductor layer which covers the substrate;
- a third insulating layer covering the second insulating layer and the signal line formed on the second insulating layer;
- and
- a pixel electrode formed on the third insulating layer.
6 more elements
An active matrix display device comprising:
- an insulated substrate;
- a semiconductor layer covering the substrate;
- a first insulating layer covering the semiconductor layer;
- a gate electrode and a capacitor electrode formed on the first insulating layer;
- a second insulating layer covering the first insulating layer and the gate electrode and capacitor electrode formed on the first insulating layer;
- a signal line for carrying an image signal formed on the second insulating layer and extending through holes in the second insulating layer and the first insulating layer for connection to the semiconductor layer which covers the substrate;
- a third insulating layer covering the second insulating layer and the signal line formed on the second insulating layer;
- a pixel electrode formed on the third insulating layer, the pixel electrode being connected through holes in the first, second, and third insulating layers for connection to the semiconductor layer which covers the substrate.
5 more elements
Dependencies are inferred from the claim text.