Display device
View Patent ↗A display device includes: a first insulating substrate; a main pixel which is formed on the first insulating substrate and comprises a plurality of sub-pixels and a single sensing electrode; a second insulating substrate which faces the first insulating substrate; a sensing spacer formed on the second insulating substrate which faces the sensing electrode; and a contact electrode formed on the sensing spacer.
1. A display device comprising:
a first insulating substrate;
a gate line and a data line formed on the first insulating substrate;
a Y-sensing line formed parallel with the gate line;
an X-sensing line formed parallel with the data line;
a first pixel including a Y-sensing electrode electrically connected to the Y-sensing line, having a Y-sensing electrode which generates a Y position signal reacting to an external stimulus, wherein the first pixel includes no X-sensing electrode electrically connected to any X-sensing line and is electrically connected to no X-sensing line;
a second pixel including an X-sensing electrode electrically connected to the X-sensing line, the X-sensing electrode generating an X position signal reacting to the external stimulus, wherein the second pixel including no Y-sensing electrode electrically connected to any Y-sensing line and is electrically connected to no Y-sensing line; and
a sensing driver which receives the Y position signal from the first pixel and the X position signal from the second pixel.
2. The display device according to claim 1 , wherein the first pixel and the second pixel are disposed alternately.
3. The display device according to claim 1 , wherein the first pixel and the second pixel comprise:
at least one thin film transistor connected to the gate line and the data line; and
a pixel electrode connected to the thin film transistor.
4. The display device according to claim 3 , wherein the first pixel and the second pixel comprise a red sub-pixel, a blue sub-pixel and a green sub-pixel, and the pixel electrode in each sub-pixel has substantially the same area.
5. The display device according to claim 3 , wherein the first pixel and the second pixel comprise a red sub-pixel, a blue sub-pixel and a green sub-pixel, and a pixel electrode of the blue sub-pixel is smaller in area than those of the other sub-pixels because of the Y-sensing electrode or the X-sensing electrode.
6. The display device according to claim 1 , further comprising:
a second insulating substrate which faces the first insulating substrate;
a sensing spacer formed on the second insulating substrate which faces the Y-sensing electrode and the X-sensing electrode;
a contact electrode formed on the sensing spacer; and
a common electrode formed on the second insulating substrate.
7. The display device according to claim 6 , wherein the common electrode and the contact electrode are supplied with a common voltage of a predetermined level.
8. The display device according to claim 7 , wherein the contact electrode faces the X-sensing electrode and the Y-sensing electrode.
9. The display device according to claim 7 , wherein the contact electrode is formed in the same layer as the common electrode.
10. The display device according to claim 7 , wherein the contact electrode is formed in a different layer from the common electrode.
11. The display device according to claim 6 , wherein areas of the Y-sensing electrode and the X-sensing electrode are the same as, or lager than an area of the contact electrode.
12. The display device according to claim 6 , further comprising a cell gap spacer formed on the second insulating substrate.