IP Library › Granted Patent US 9,097,928
Granted Patent B2
US 9,097,928 · App. 14/092,160 · Granted Aug 4, 2015

Capacitive touch panel and display device

Inventors: Xingyao Zhou (Shanghai, CN); Qijun Yao (Shanghai, CN)
Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
G02F1/13338G02F1/133512G06F3/044G06F3/0412
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Quick Facts
Patent No.
US 9,097,928
App. No.
14/092,160
Granted
Aug 4, 2015
Kind
B2
Abstract

A capacitive touch panel is disclosed. The touch panel includes a substrate, and a black matrix formed on the substrate, where the black matrix includes a plurality of light-permeable regions. The touch panel also includes a plurality of color units each aligned with one of the light-permeable regions of the black matrix in a light permeation direction, where each of the color units includes a color resistor of one of a plurality of colors, and at least one transparent conductive layer includes a plurality of slots, where the slots of the transparent conductive layer are aligned with the color units of the same color in the light permeation direction.

Claims (30)

1. A capacitive touch panel, comprising:

a substrate;

a black matrix formed on the substrate, wherein the black matrix comprises a plurality of light-permeable regions;

a plurality of color units each aligned with one of the light-permeable regions of the black matrix in a light permeation direction, each of the color units comprising a color resistor of one of a plurality of colors; and

at least one transparent conductive layer comprising a plurality of slots, wherein the slots of the transparent conductive layer are aligned with the color units of the same color in the light permeation direction.

2. The capacitive touch panel of claim 1 , wherein the transparent conductive layer is located at an external or internal side of the substrate.

3. The capacitive touch panel of claim 1 , wherein the black matrix is between the transparent conductive layer and the substrate.

4. The capacitive touch panel of claim 3 , wherein, in the light permeation direction, a horizontal portion of the slots of the transparent conductive layer is overlapped with a light-impermeable region of the black matrix, and a vertical portion of the slots of the transparent conductive layer is overlapped with color resistors of the same color.

5. The capacitive touch panel of claim 4 , wherein, a line width of the light-impermeable region of the black matrix in the horizontal direction ranges from 24.5 μm to 26.5 μm.

6. The capacitive touch panel of claim 4 , wherein, a line width of the horizontal portion of the slots of the transparent conductive layer or of the horizontal slot is 10% to 90% of a line width of the light-impermeable region of the black matrix in the horizontal direction.

7. The capacitive touch panel of claim 6 , wherein, the line width of the horizontal portion of the slots of the transparent conductive layer or of the horizontal slot ranges from 3 μm to 22 μm.

8. The capacitive touch panel of claim 4 , wherein, the horizontal portion of the slots has the minimum line width equal to the width of one color unit, and has the maximum line width equal to the width of one color unit plus the line width of the light-impermeable region of the black matrix in a vertical direction on both sides of the color unit.

9. The capacitive touch panel of claim 8 , wherein, the line width of the light-impermeable region of the black matrix in the vertical direction ranges from 7.0 μm to 8.0 μm.

10. The capacitive touch panel of claim 8 , wherein, a line width of a vertical slot of the transparent conductive layer ranges from 33.5 μm to 38.5 μm.

11. The capacitive touch panel of claim 1 , further comprising a metal grid layer which is electrically connected to the transparent conductive layer.

12. The capacitive touch panel of claim 1 , comprising two transparent conductive layers, wherein each of slots is in the first transparent conductive layer.

13. The capacitive touch panel of claim 1 , wherein, one or more slots are at the positions at the transparent conductive layer corresponding to the color units of the same color.

14. The capacitive touch panel of claim 1 , wherein each of the slots comprises a transparent nonconductive material.

15. The capacitive touch panel of claim 1 , wherein the color units include green units, which are not aligned with the slots of the transparent conductive layer in the light permeation direction.

16. A capacitive touch display device, comprising:

a touch panel, comprising: a substrate,

a black matrix formed on the substrate, wherein the black matrix comprises a plurality of light-permeable regions,

a plurality of color units each aligned with one of the light-permeable regions of the black matrix in a light permeation direction, each of the color units comprising a color resistor of one of a plurality of colors, and

at least one transparent conductive layer comprising a plurality of slots, wherein the slots of the transparent conductive layer are aligned with the color units of the same color in the light permeation direction;

an array substrate, which is arranged opposite to the touch panel; and

a display layer disposed between the touch panel and the array substrate.

17. The touch display device of claim 16 , wherein the transparent conductive layer is located at an external or internal side of the substrate.

18. The touch display device of claim 16 , wherein the black matrix is between the transparent conductive layer and the substrate.

19. The touch display device of claim 16 , wherein the touch panel further comprises a metal grid layer which is electrically connected to the transparent conductive layer.

20. The touch display device of claim 16 , wherein, the touch panel further comprises two transparent conductive layers, wherein each of slots is in the first transparent conductive layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 4, 2013
From: ZHOU, XINGYAO; YAO, QIJUN
To: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
Reel/Frame 031711/0809 →
Priority Claims (1)
CN 2012 1 0350298 · Sep 19, 2012 · national
Continuity (2)
Continuation In Part PCTCN2012084252 · Nov 7, 2012
Related Publication 20140092326A1 · Apr 3, 2014