Semiconductor device and method of fabricating the same
First Claim
1. An active matrix liquid crystal display device comprising:
- a liquid crystal panel including;
a first substrate;
a thin film transistor formed over the first substrate;
a pixel electrode formed over the first substrate and electrically connected to the thin film transistor;
a second substrate opposed to the first substrate;
a liquid crystal disposed between the first substrate and the second substrate;
a columnar spacer disposed between the pixel electrode and the second substrate, the columnar spacer comprising a resin;
an LED backlight adjacent to the liquid crystal panel; and
a touch panel adjacent to the liquid crystal panel,wherein the columnar spacer is overlapped with the thin film transistor at least partly.
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Abstract
There is provided a high quality liquid crystal panel having a thickness with high accuracy, which is designed, without using a particulate spacer, within a free range in accordance with characteristics of a used liquid crystal and a driving method, and is also provided a method of fabricating the same. The shape of a spacer for keeping a substrate interval constant is made such that it is a columnar shape, a radius R of curvature is 2 μm or less, a height H is 0.5 μm to 10 μm, a diameter is 20 μm or less, and an angle α is 65° to 115°. By doing so, it is possible to prevent the lowering of an opening rate and the lowering of light leakage due to orientation disturbance.
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Citations
24 Claims
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1. An active matrix liquid crystal display device comprising:
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a liquid crystal panel including; a first substrate; a thin film transistor formed over the first substrate; a pixel electrode formed over the first substrate and electrically connected to the thin film transistor; a second substrate opposed to the first substrate; a liquid crystal disposed between the first substrate and the second substrate; a columnar spacer disposed between the pixel electrode and the second substrate, the columnar spacer comprising a resin; an LED backlight adjacent to the liquid crystal panel; and a touch panel adjacent to the liquid crystal panel, wherein the columnar spacer is overlapped with the thin film transistor at least partly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An active matrix liquid crystal display device comprising:
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a liquid crystal panel including; a first substrate; a thin film transistor formed over the first substrate, the thin film transistor comprising a semiconductor layer; a pixel electrode formed over the first substrate and electrically connected to the thin film transistor; a second substrate opposed to the first substrate; a liquid crystal disposed between the first substrate and the second substrate; a columnar spacer disposed between the pixel electrode and the second substrate, the columnar spacer comprising a resin; an LED backlight adjacent to the liquid crystal panel; and a touch panel adjacent to the liquid crystal panel, wherein the columnar spacer is overlapped with the semiconductor layer at least partly. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An active matrix liquid crystal display device comprising:
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a liquid crystal panel including; a first substrate; a thin film transistor formed over the first substrate; a pixel electrode formed over the first substrate and electrically connected to the thin film transistor; a storage capacitor electrically connected to the pixel electrode, the storage capacitor including an electrode; a second substrate opposed to the first substrate; a liquid crystal disposed between the first substrate and the second substrate; a columnar spacer disposed between the pixel electrode and the second substrate, the columnar spacer comprising a resin; an LED backlight adjacent to the liquid crystal panel; and a touch panel adjacent to the liquid crystal panel, wherein the columnar spacer is overlapped with the electrode of the storage capacitor at least partly. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification