Display device with arrangement to reduce fluctuations in brightness of pixels caused by parasitic capacitance
View Patent ↗Provided is a display device ( 1 ), including: two pixels in a region (A) surrounded by two video signal lines (DL) and two scanning signal lines (GL); a first dummy wiring, which is connected to one video signal line of the two video signal lines; and a second dummy wiring, which is connected to a different one of the two video signal lines (DL) from the one video signal line to which the first dummy wiring is connected, in which the first dummy wiring and the second dummy wiring each extend along a contour of the region (A) to a position between the two pixels, and further extend so that respective end portions are opposed to each other between the two pixels.
1. A display device, comprising:
two pixel electrodes respectively forming two pixels in a region surrounded by two video signal lines adjacent to each other and two scanning signal lines adjacent to each other;
a first dummy wiring, which is connected to one video signal line of the two video signal lines; and
a second dummy wiring, which is connected to a different one of the two video signal lines from the one video signal line to which the first dummy wiring is connected,
wherein the two pixel electrodes are arranged adjacent to each other between the two video signal lines in a direction in which the two scanning signal lines extend;
wherein the first dummy wiring extends along one of the two scanning signal lines to a first position adjacent an area between the two pixel electrodes, and the second dummy wiring extends along the other one of the two scanning signal lines to a second position adjacent the area between the two pixel electrodes; and
wherein the first dummy wiring includes a first extending portion extending from the first position into the area between the two pixel electrodes and the second dummy wiring includes a second extending position extending from the second position into the area, between the two pixel electrodes, and wherein respective end portions of the first and second extending portions are opposed to each other in the area between the two pixel electrodes.
2. The display device according to claim 1 , wherein the first extending portion and the second extending portion each extend to a substantially central position in the area between the two pixel electrodes in an extending direction of the two video signal lines.
3. The display device according to claim 1 , wherein the first dummy wiring and the second dummy wiring each have the same width as a width of each of the two video signal lines.
4. The display device according to claim 1 , wherein the first dummy wiring and the second dummy wiring are formed so that the end portion of the first extending portion and the end portion of the second extending portion are overlapped with each other in a direction of a rubbing treatment applied to the pixel electrodes.
5. The display device according to claim 4 , wherein:
the end portion of the first extending portion and the end portion of the second extending portion are formed to be inclined at the same inclination angle; and
the first extending portion and the second extending portion are arranged so that inclined portions of the end portions are opposed to each other when viewed in a direction of the extension of the scanning signal lines.
6. The display device according to claim 1 ,
wherein a slit is formed between the end portion of the first extending portion and the end portion of the second extending portion, the slit being formed in a shape inclined with reference to the direction in which the two scanning signal lines extend; and
wherein the end portions of the first dummy wiring and the second dummy wiring are formed so that tips of the end portions are sharpened.
7. The display device according to claim 6 ,
wherein the tip of the end portion of the first extending portion extends to a position closer to the other one of the two scanning signal lines than the tip of the end portion of the second extending portion; and
wherein the tip of the end portion of the second extending portion extends to a position closer to the one of the two scanning signal lines than the tip of the end portion of the first extending portion.