TOUCH DISPLAY HAVING IN-PLANE-SWITCHING LIQUID CRYSTAL STRUCTURE
First Claim
Patent Images
1. A touch display having in-plane-switching liquid crystal structure, which includes a pixel cell and a multiplexer circuit for providing a display function and a touch detection function, wherein said pixel cell comprises:
- a first substrate;
a counter electrode located on said first substrate;
a storage capacitor bottom electrode located on said first substrate and separated from said counter electrode;
a storage capacitor connection line coupled electrically with said storage capacitor bottom electrode;
a counter electrode connection line coupled electrically with said counter electrode;
an insulation layer located on said counter electrode and on said storage capacitor bottom electrode;
a thin film transistor located on said insulation layer and having a gate, a source, and a drain;
a pixel electrode located on said insulation layer and coupled electrically with said drain;
a storage capacitor top electrode located on said insulation layer and coupled electrically with said pixel electrode;
a gate connection line coupled electrically with said gate;
a source connection line coupled electrically with said source; and
a liquid crystal layer located on said thin film transistor, on said pixel electrode, and on said storage capacitor top electrode; and
said multiplexer circuit comprises;
a first multiplexer having a first contact, a second contact, and a third contact, wherein, said first contact is coupled with said source connection line, said second contact is coupled with a source driver unit, said third contact is coupled with a touch control unit, said first contact is coupled electrically with said second contact during a display period, and said first contact is coupled electrically with said third contact during a touch detection period;
a second multiplexer having a fourth contact, a fifth contact, and a sixth contact, wherein, said fourth contact is coupled with said storage capacitor connection line, said fifth contact is coupled with a common voltage, said sixth contact is coupled with said touch control unit, said fourth contact is coupled electrically with said fifth contact during said display period, and said fourth contact is coupled electrically with said sixth contact during said touch detection period; and
a third multiplexer having a seventh contact, an eighth contact, and a ninth contact, wherein, said seventh contact is coupled with said counter electrode, said eighth contact is coupled with said common voltage, said ninth contact is coupled with said touch control unit, said seventh contact is coupled electrically with said eighth contact during said display period, and said seventh contact is coupled electrically with said ninth contact during said touch detection period.
2 Assignments
0 Petitions
Accused Products
Abstract
A touch display having in-plane-switching liquid crystal structure, comprising a pixel cell and a multiplexer circuit, wherein the multiplexer circuit is used to couple a source driver unit with the pixel cell to provide an in-plane switching display function during a display period, and couple a touch control unit with the pixel cell to provide a touch detection function during a touch detection period.
-
Citations
16 Claims
-
1. A touch display having in-plane-switching liquid crystal structure, which includes a pixel cell and a multiplexer circuit for providing a display function and a touch detection function, wherein said pixel cell comprises:
-
a first substrate; a counter electrode located on said first substrate; a storage capacitor bottom electrode located on said first substrate and separated from said counter electrode; a storage capacitor connection line coupled electrically with said storage capacitor bottom electrode; a counter electrode connection line coupled electrically with said counter electrode; an insulation layer located on said counter electrode and on said storage capacitor bottom electrode; a thin film transistor located on said insulation layer and having a gate, a source, and a drain; a pixel electrode located on said insulation layer and coupled electrically with said drain; a storage capacitor top electrode located on said insulation layer and coupled electrically with said pixel electrode; a gate connection line coupled electrically with said gate; a source connection line coupled electrically with said source; and a liquid crystal layer located on said thin film transistor, on said pixel electrode, and on said storage capacitor top electrode; and said multiplexer circuit comprises; a first multiplexer having a first contact, a second contact, and a third contact, wherein, said first contact is coupled with said source connection line, said second contact is coupled with a source driver unit, said third contact is coupled with a touch control unit, said first contact is coupled electrically with said second contact during a display period, and said first contact is coupled electrically with said third contact during a touch detection period; a second multiplexer having a fourth contact, a fifth contact, and a sixth contact, wherein, said fourth contact is coupled with said storage capacitor connection line, said fifth contact is coupled with a common voltage, said sixth contact is coupled with said touch control unit, said fourth contact is coupled electrically with said fifth contact during said display period, and said fourth contact is coupled electrically with said sixth contact during said touch detection period; and a third multiplexer having a seventh contact, an eighth contact, and a ninth contact, wherein, said seventh contact is coupled with said counter electrode, said eighth contact is coupled with said common voltage, said ninth contact is coupled with said touch control unit, said seventh contact is coupled electrically with said eighth contact during said display period, and said seventh contact is coupled electrically with said ninth contact during said touch detection period. - View Dependent Claims (2, 3, 4)
-
-
5. A touch display having in-plane-switching liquid crystal structure, comprising:
-
a pixel array having plural external source connection lines, plural external gate connection lines, plural external storage capacitor connection lines, and plural pixel cells, each of said plural pixel cells comprising; a first substrate; a counter electrode located on said first substrate; a storage capacitor connection line located on said first substrate and coupled electrically with said counter electrode; a storage capacitor connection line coupled electrically with said counter electrode, with said storage capacitor bottom electrode, and with one of said plural external storage capacitor connection lines; an insulation layer located on said counter electrode and on said storage capacitor bottom electrode; a thin film transistor located on said insulation layer and having a gate, a source, and a drain; a pixel electrode located on said insulation layer and coupled electrically with said drain; a storage capacitor top electrode located on said insulation layer and coupled electrically with said pixel electrode; a gate connection line coupled electrically with said gate and with one of said plural external gate connection lines; a source connection line coupled electrically with said source and with one of said plural external source connection lines; and a liquid crystal layer located on said thin film transistor, on said pixel electrode, and on said storage capacitor top electrode; a gate driver unit coupled with said plural external gate connection lines; a multiplexer circuit coupled with said plural external source connection lines and with said plural external storage capacitor connection lines; a source driver unit coupled with said multiplexer circuit; and a touch control unit coupled with said multiplexer circuit; wherein said multiplexer circuit couples said source driver unit with said plural external source connection lines and with said plural external storage capacitor connection lines during a display period, and couples said touch control unit with said plural external source connection lines and with said plural external storage capacitor connection lines during a touch detection period. - View Dependent Claims (6, 7, 8, 9, 10)
-
-
11. A touch display having in-plane-switching liquid crystal structure, comprising:
-
a pixel array having plural external source connection lines, plural external gate connection lines, plural external storage capacitor connection lines, plural external counter electrode connection lines and plural pixel cells, each of said plural pixel cells comprising; a first substrate; a counter electrode located on said first substrate; a storage capacitor bottom electrode located on said first substrate and separated from said counter electrode; a storage capacitor connection line coupled electrically with said storage capacitor bottom electrode and with one of said plural external storage capacitor connection lines; a counter electrode connection line coupled electrically with said counter electrode and with one of said plural external counter electrode connection lines; an insulation layer located on said counter electrode and said storage capacitor bottom electrode; a thin film transistor located on said insulation layer and having a gate, a source, and a drain; a pixel electrode located on said insulation layer and coupled electrically with said drain; a storage capacitor top electrode located on said insulation layer and coupled electrically with said pixel electrode; a gate connection line coupled electrically with said gate and with one of said plural external gate connection lines; a source connection line coupled electrically with said source and with one of said plural external source connection lines; and a liquid crystal layer located on said thin film transistor, on said pixel electrode, and on said storage capacitor top electrode; a gate driver unit coupled with said plural external gate connection lines; a multiplexer circuit coupled with said plural external source connection lines, with said plural external storage capacitor connection lines, and with said plural external counter electrode connection lines; a source driver unit coupled with said multiplexer circuit; and a touch control unit coupled with said multiplexer circuit; wherein said multiplexer circuit couples said source driver unit with said plural external source connection lines, with said plural external storage capacitor connection lines, and with said plural external counter electrode connection lines during a display period, and couples said touch control unit with said plural external source connection lines, with said plural external storage capacitor connection lines, and with said plural external counter electrode connection lines during a touch detection period. - View Dependent Claims (12, 13, 14, 15, 16)
-
Specification