CONDUCTIVE SUBSTRATE AND TOUCH DISPLAY DEVICE

• US 20140063370A1
• Filed: 08/30/2013
• Published: 03/06/2014
• Est. Priority Date: 08/31/2012
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: KO, Wen-Po, LIN, Chieh-Wen, LIN, Chung-I, CHEN, Kuan-Chih, SHIH, Jeng-Feng, TSAO, Tzu-I, LIN, Chien-Hung, WU, Cheng-Min, LO, Yu, LO, Min-Hsiang, LIN, Kun-Yi, LIU, Yi-Chun, CHEN, Ming-Jhih, YANG, Cheng-Chen
• Granted Patent: US 9,538,640 B2
• Time in Patent Office: Days
• US Class Current: 349/12
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133502 Antiglare, refractive index matching layers
• CPC Class Codes: G02F 1/134363 for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
• CPC Class Codes: G02F 2201/121 common or background
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G06F 3/0448 Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
• CPC Class Codes: H05K 1/0274 Optical details, e.g. printed circuits comprising integral optical means H05K1/0269 takes precedence; coupling light guides with opto-electronic components G02B6/42
• CPC Class Codes: H05K 1/0287 having an universal lay-out, e.g. pad or land grid patterns or mesh patterns

Abstract

A conductive substrate comprises a substrate, a plurality of conductive patterns, and a plurality of optical compensation patterns. The conductive patterns extend along a first direction and are sequentially disposed on the substrate along a second direction. The optical compensation patterns are staggered from the conductive patterns along the second direction on the substrate. An edge of at least one of the conductive patterns extending along the first direction has a plurality of conductive protrusions, and an edge of at least one of the optical compensation patterns extending along the first direction has a plurality of optical compensation protrusions. A touch display device is also disclosed.

Claims

1. A conductive substrate, comprising:

a substrate;

a plurality of conductive patterns extending along a first direction and sequentially disposed on the substrate along a second direction; and

a plurality of optical compensation patterns staggered from the conductive patterns along the second direction on the substrate,

wherein an edge of at least one of the conductive patterns extending along the first direction has a plurality of conductive protrusions, and an edge of at least one of the optical compensation patterns extending along the first direction has a plurality of optical compensation protrusions.

2. The conductive substrate as recited in claim 1, wherein the adjacent conductive protrusions and the optical compensation protrusions are staggered from each other.

3. The conductive substrate as recited in claim 2, wherein the adjacent conductive protrusions and the optical compensation protrusions are staggered from each other in the way of a zigzag or in the way of convexes and concaves.

4. The conductive substrate as recited in claim 1, wherein a width of at least one of the conductive patterns is between 300 microns and 1000 microns, and a width of at least one of the optical compensation patterns is between 500 microns and 2000 microns.

5. The conductive substrate as recited in claim 1, wherein an interval formed between the adjacent conductive pattern and optical compensation pattern is between 1 micron and 10 microns.

6. The conductive substrate as recited in claim 1, further comprising:

a signal processing unit electrically connected to the conductive patterns.

7. The conductive substrate as recited in claim 1, wherein the optical compensation patterns are a grounding electrode.

8. A touch display device, comprising:

a first conductive substrate including a first substrate, a plurality of first conductive patterns and a plurality of optical compensation patterns, wherein the first conductive patterns extend along a first direction and are sequentially disposed on the first substrate along a second direction, the optical compensation patterns are staggered from the first conductive patterns along the second direction on the first substrate, an edge of at least one of the first conductive patterns extending along the first direction has a plurality of conductive protrusions, and an edge of at least one of the optical compensation patterns extending along the first direction has a plurality of optical compensation protrusions;

a substrate disposed opposite the first conductive substrate; and

a liquid crystal layer disposed between the first conductive substrate and the substrate.

9. The touch display device as recited in claim 8, wherein the substrate is a second conductive substrate including a second substrate and a plurality of second conductive patterns which extend along the second direction and are sequentially disposed on the second substrate along the first direction.

10. The touch display device as recited in claim 8, wherein the first conductive patterns are a plurality of transmitter electrodes and a plurality of receiver electrodes, respectively.

11. The touch display device as recited in claim 10, wherein the optical compensation patterns are surrounded by the transmitter electrodes.

12. The touch display device as recited in claim 8, wherein the adjacent conductive protrusions and the optical compensation protrusions are staggered from each other.

13. The touch display device as recited in claim 8, wherein the adjacent conductive protrusions and the optical compensation protrusions are staggered from each other in the way of a zigzag or in the way of convexes and concaves.

14. The touch display device as recited in claim 8, wherein a width of at least one of the first conductive patterns is between 300 microns and 1000 microns, and a width of at least one of the optical compensation patterns is between 500 microns and 2000 microns.

15. The touch display device as recited in claim 8, wherein an interval formed between the adjacent first conductive pattern and optical compensation pattern is between 1 micron and 10 microns.

16. The touch display device as recited in claim 9, further comprising:

a signal processing module electrically connected to the first conductive patterns and the second conductive patterns;

a first polarizing structure disposed on the first conductive substrate;

a color filter layer disposed between the first conductive substrate and the liquid crystal layer and having a blocking structure, the vertical projection of which covers at least a part of the optical compensation patterns;

a second polarizing structure disposed on a side of the second conductive substrate away from the liquid crystal layer; and

a backlight module disposed on a side of the second polarizing structure away from the second conductive substrate.

17. The touch display device as recited in claim 16, wherein the first polarizing structure further comprises:

an adhesive film disposed on the first conductive substrate;

a polarizing film disposed on the adhesive film; and

a protective film disposed on the polarizing film.

18. The touch display device as recited in claim 16, wherein the first polarizing structure includes an anti-electrostatic material.

19. The touch display device as recited in claim 17, wherein the polarizing film includes an anti-electrostatic material.

20. The touch display device as recited in claim 16, further comprising:

a frame having an accommodating space for accommodating the first conductive substrate, the second conductive substrate, the liquid crystal layer, the signal processing module, the first polarizing structure, the color filter layer, the second polarizing structure, and the backlight module.