TFT LIQUID CRYSTAL DISPLAY APPARATUS HAVING A TOUCH FUNCTION
First Claim
Patent Images
1. TFT liquid crystal display apparatus having a touch function, comprising:
- a first electrode layer, having multiple first electrodes and multiple thin film transistors, wherein each of said multiple thin film transistors has a source, a gate, and a drain, said source being coupled to a source control unit, said gate being coupled to a gate control unit, and said drain being coupled to one of said multiple first electrodes and to one of multiple storage capacitors;
a liquid crystal display layer, located above said first electrode layer;
a transparent electrode layer, being located above said liquid crystal display layer and having multiple transparent strip electrodes, wherein a touch plane is provided above said transparent electrode layer and each of said multiple transparent strip electrodes opposes at least one of said multiple first electrodes; and
multiple switches, each of which has a control end, a first contact, a second contact, and a third contact, said control end being coupled with a mode control signal, said first contact being coupled to one of said multiple transparent strip electrodes, said second contact being coupled to a common voltage generation unit, and said third contact being coupled to a first touch detection unit, wherein, when said mode control signal is at a first state, said first contact connects electrically with said second contact; and
when said mode control signal is at a second state, said first contact connects electrically with said third contact.
1 Assignment
0 Petitions
Accused Products
Abstract
A TFT liquid crystal display apparatus having a touch function, including: a first electrode layer, having multiple first electrodes and multiple thin film transistors, wherein each of the multiple thin film transistors has a source coupled to a source control unit, a gate coupled to a gate control unit, and a drain coupled to one of the multiple first electrodes and to one of multiple storage capacitors; a liquid crystal display layer, located above the first electrode layer; a transparent electrode layer, being located above the liquid crystal display layer and having multiple transparent strip electrodes; and multiple switches, of which each has a control end coupled with a mode control signal, a first contact coupled to one of the multiple transparent strip electrodes, a second contact coupled to a common voltage generation unit, and a third contact coupled to a touch detection unit.
48 Citations
37 Claims
-
1. TFT liquid crystal display apparatus having a touch function, comprising:
-
a first electrode layer, having multiple first electrodes and multiple thin film transistors, wherein each of said multiple thin film transistors has a source, a gate, and a drain, said source being coupled to a source control unit, said gate being coupled to a gate control unit, and said drain being coupled to one of said multiple first electrodes and to one of multiple storage capacitors; a liquid crystal display layer, located above said first electrode layer; a transparent electrode layer, being located above said liquid crystal display layer and having multiple transparent strip electrodes, wherein a touch plane is provided above said transparent electrode layer and each of said multiple transparent strip electrodes opposes at least one of said multiple first electrodes; and multiple switches, each of which has a control end, a first contact, a second contact, and a third contact, said control end being coupled with a mode control signal, said first contact being coupled to one of said multiple transparent strip electrodes, said second contact being coupled to a common voltage generation unit, and said third contact being coupled to a first touch detection unit, wherein, when said mode control signal is at a first state, said first contact connects electrically with said second contact; and
when said mode control signal is at a second state, said first contact connects electrically with said third contact. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A TFT liquid crystal display apparatus having a touch function, comprising:
-
a first electrode layer, having multiple first electrodes, multiple storage-capacitor top electrodes, and multiple thin film transistors, wherein each of said multiple thin film transistors has a source, a gate, and a drain, said source being coupled to a source control unit, said gate being coupled to a gate control unit, and said drain being coupled to one of said multiple first electrodes and to one of said multiple storage-capacitor top electrodes; a liquid crystal display layer, located above said first electrode layer; a transparent electrode layer, being located above said liquid crystal display layer and having multiple transparent strip electrodes, wherein a touch plane is provided above said transparent electrode layer and each of said multiple transparent strip electrodes opposes at least one of said multiple first electrodes; multiple first switches, each of which has a first control end, a first contact, a second contact, and a third contact, said first control end being coupled with a mode control signal, said first contact being coupled to one of said multiple transparent strip electrodes, said second contact being coupled to a common voltage generation unit, and said third contact being coupled to a first touch detection unit, wherein, when said mode control signal is at a first state, said first contact connects electrically with said second contact; and
when said mode control signal is at a second state, said first contact connects electrically with said third contact; andmultiple second switches, each of which has a second control end, a fourth contact, a fifth contact, and a sixth contact, said second control end being coupled with said mode control signal, said fourth contact being coupled to one of multiple storage-capacitor bottom electrodes, said fifth contact being coupled to said common voltage generation unit, and said sixth contact being coupled to a second touch detection unit, wherein, when said mode control signal is at said first state, said fourth contact connects electrically with said fifth contact; and
when said mode control signal is at said second state, said fourth contact connects electrically with said sixth contact. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
-
25. A TFT liquid crystal display apparatus having a touch function, comprising:
-
a first electrode layer, having multiple first transparent electrodes, multiple storage-capacitor top electrodes, and multiple thin film transistors, wherein a second touch plane is provided below said first electrode layer, and each of said multiple thin film transistors has a source, a gate, and a drain, said source being coupled to a source control unit, said gate being coupled to a gate control unit, and said drain being coupled to one of said multiple first transparent electrodes and to one of said multiple storage-capacitor top electrodes, wherein said source control unit outputs multiple pixel signals when a mode control signal is at a first state, and provides a third touch detection unit to couple with said source of each of said multiple thin film transistors when said mode control signal is at a second state; a liquid crystal display layer, located above said first electrode layer; a transparent electrode layer, being located above said liquid crystal display layer and having multiple second transparent electrodes, wherein a first touch plane is provided above said transparent electrode layer and each of said multiple second transparent electrodes opposes at least one of said multiple first transparent electrodes; multiple first switches, each of which has a first control end, a first contact, a second contact, and a third contact, said first control end being coupled with said mode control signal, said first contact being coupled to one of said multiple second transparent electrodes, said second contact being coupled to a common voltage generation unit, and said third contact being coupled to a first touch detection unit, wherein, when said mode control signal is at said first state, said first contact connects electrically with said second contact; and
when said mode control signal is at said second state, said first contact connects electrically with said third contact;multiple second switches, each of which has a second control end, a fourth contact, a fifth contact, and a sixth contact, said second control end being coupled with said mode control signal, said fourth contact being coupled to one of multiple storage-capacitor bottom electrodes, said fifth contact being coupled to said common voltage generation unit, and said sixth contact being coupled to a second touch detection unit, wherein, when said mode control signal is at said first state, said fourth contact connects electrically with said fifth contact; and
when said mode control signal is at said second state, said fourth contact connects electrically with said sixth contact; anda display-and-touch scan timing control unit, used for generating said mode control signal. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeRich IP Technology, Inc.
-
Original AssigneeRich IP Technology, Inc.
-
InventorsCHEN, Han-Chang, TU, Yen-Hung, CHIA, Chung-Lin
-
Granted Patent
-
Time in Patent OfficeDays
-
Field of Search
-
US Class Current345/174
-
CPC Class CodesG02F 1/13338 Input devices, e.g. touch p...G06F 3/0412 Digitisers structurally int...G06F 3/04164 Connections between sensors...G06F 3/041662 using alternate mutual and ...G06F 3/044 by capacitive meansG06F 3/0445 using two or more layers of...G06F 3/0446 using a grid-like structure...
