Electrooptical device and method of fabricating the same
View Patent ↗There is disclosed an electrooptical device capable of achieving a large area display by making full use of the size of the substrate. An active matrix substrate acts as a driver portion for the reflection-type electrooptical device. A pixel matrix circuit and logic circuitry are formed on the active matrix substrate. At this time, the logic circuitry is disposed, by making use of a dead space in the pixel matrix circuit. The area occupied by the pixel matrix circuit, or image display region, can be enlarged without being limited by the area occupied by the logic circuitry.
1. An active matrix display device comprising:
an active matrix substrate having a pixel matrix circuit and a driver circuit;
first and second thin film transistors formed in the pixel matrix circuit;
a first interlayer dielectric film formed over the first and second thin film transistors and the driver circuit;
first and second data lines formed over the first interlayer dielectric film, the first data line being electrically connected to the first thin film transistor and the second data line being electrically connected to the second thin film transistor;
a second interlayer dielectric film formed over the first and second data lines;
first and second pixel electrodes formed over the second interlayer dielectric film, the first pixel electrode being electrically connected to the first data line and the second pixel electrode being electrically connected to the second data line;
an organic resinous material formed over the interlayer dielectric film and covering an end of the first pixel electrode and an end of the second pixel electrode;
a counter substrate; and
a liquid crystal layer formed between the active matrix substrate and the counter substrate,
wherein a relative dielectric constant of the organic resinous material is smaller than that of the liquid crystal layer.
2. An active matrix display device according to claim 1 , wherein each of the first and second thin film transistors comprises a crystalline semiconductor film.
3. An active matrix display device according to claim 1 , wherein each of the first and second pixel electrodes has a reflective surface.
4. An active matrix display device according to claim 1 , wherein the organic resinous material is in contact with the end of the first pixel electrode and the end of the second pixel electrode.
5. An active matrix display device according to claim 1 , wherein the organic resinous material is a black matrix.
6. An active matrix display device according to claim 1 , wherein the organic resinous material includes a black dye.
7. An active matrix display device according to claim 1 , wherein one of the first and second pixel electrodes overlaps the driver circuit.
8. An active matrix display device comprising:
an active matrix substrate having a pixel matrix circuit and a driver circuit;
first and second thin film transistors formed in the pixel matrix circuit;
a first interlayer dielectric film formed over the first and second thin film transistors and the driver circuit;
first and second data lines formed over the first interlayer dielectric film, the first data line being electrically connected to the first thin film transistor and the second data line being electrically connected to the second thin film transistor;
a second interlayer dielectric film formed over the first and second data lines;
first and second pixel electrodes formed over the second interlayer dielectric film, the first pixel electrode being electrically connected to the first data line and the second pixel electrode being electrically connected to the second data line;
an organic resinous material formed over the interlayer dielectric film and covering an end of the first pixel electrode and an end of the second pixel electrode; and
a counter substrate.
9. An active matrix display device according to claim 8 , wherein each of the first and second thin film transistors comprises a crystalline semiconductor film.
10. An active matrix display device according to claim 8 , wherein each of the first and second pixel electrodes has a reflective surface.
11. An active matrix display device according to claim 8 , wherein the organic resinous material is in contact with the end of the first pixel electrode and the end of the second pixel electrode.
12. An active matrix display device according to claim 8 , wherein the organic resinous material is a black matrix.
13. An active matrix display device according to claim 8 , wherein the organic resinous material includes a black dye.
14. An active matrix display device according to claim 8 , wherein one of the first and second pixel electrodes overlaps the driver circuit.
15. An electronic equipment having a display device, the display device comprising:
an active matrix substrate having a pixel matrix circuit and a driver circuit;
first and second thin film transistors formed in the pixel matrix circuit;
a first interlayer dielectric film formed over the first and second thin film transistors and the driver circuit;
first and second data lines formed over the first interlayer dielectric film, the first data line being electrically connected to the first thin film transistor and the second data line being electrically connected to the second thin film transistor;
a second interlayer dielectric film formed over the first and second data lines;
first and second pixel electrodes formed over the second interlayer dielectric film, the first pixel electrode being electrically connected to the first data line and the second pixel electrode being electrically connected to the second data line;
an organic resinous material formed over the interlayer dielectric film and covering an end of the first pixel electrode and an end of the second pixel electrode; and
a counter substrate.
16. An electronic equipment according to claim 15 , wherein each of the first and second thin film transistors comprises a crystalline semiconductor film.
17. An electronic equipment according to claim 15 , wherein each of the first and second pixel electrodes has a reflective surface.
18. An electronic equipment according to claim 15 , wherein the electronic equipment is selected from the group consisting of a camera, a projector, a car navigation system, a personal computer, a head mount display and a personal communication device.
19. An electronic equipment according to claim 15 , wherein the organic resinous material is in contact with the end of the first pixel electrode and the end of the second pixel electrode.
20. An electronic equipment according to claim 15 , wherein the organic resinous material is a black matrix.
21. An electronic equipment according to claim 15 , wherein the organic resinous material includes a black dye.
22. An electronic equipment according to claim 15 , wherein one of the first and second pixel electrodes overlaps the driver circuit.
23. An electronic equipment having a display device, the display device comprising:
an active matrix substrate having a pixel matrix circuit and a driver circuit;
first and second thin film transistors formed in the pixel matrix circuit;
a first interlayer dielectric film formed over the first and second thin film transistors and the driver circuit;
first and second data lines formed over the first interlayer dielectric film, the first data line being electrically connected to the first thin film transistor and the second data line being electrically connected to the second thin film transistor;
a second interlayer dielectric film formed over the first and second data lines;
first and second pixel electrodes formed over the second interlayer dielectric film, the first pixel electrode being electrically connected to the first data line and the second pixel electrode being electrically connected to the second data line;
an organic resinous material formed over the interlayer dielectric film and covering an end of the first pixel electrode and an end of the second pixel electrode;
a counter substrate; and
a liquid crystal layer formed between the active matrix substrate and the counter substrate,
wherein a relative dielectric constant of the organic resinous material is smaller than that of the liquid crystal layer.
24. An electronic equipment according to claim 23 , wherein each of the first and second thin film transistors comprises a crystalline semiconductor film.
25. An electronic equipment according to claim 23 , wherein the first and second pixel electrodes has a reflective surface.
26. An electronic equipment according to claim 23 , wherein the electronic equipment is selected from the group consisting of a camera, a projector, a car navigation system, a personal computer, a head mount display and a personal communication device.
27. An electronic equipment according to claim 23 , wherein the organic resinous material is in contact with the end of the first pixel electrode and the end of the second pixel electrode.
28. An electronic equipment according to claim 23 , wherein the organic resinous material is a black matrix.
29. An electronic equipment according to claim 23 , wherein the organic resinous material includes a black dye.
30. An electronic equipment according to claim 23 , wherein one of the first and second pixel electrodes overlaps the driver circuit.