Touch screen, display device and manufacturing method thereof usable for realizing 3D display

Patent metadata

Field	Value
Publication number	US-9996200-B2
Application number	US-201314348133-A
Country	US
Kind code	B2
Filing date	Jun 27, 2013
Priority date	Apr 27, 2013
Publication date	Jun 12, 2018
Grant date	Jun 12, 2018

Abstract

Embodiments of the invention relate to a touch screen, a display device and manufacturing method thereof being usable for realizing 3D display. The touch screen comprises: an upper substrate and a lower substrate cell-assembled; and liquid crystal, filled between the upper substrate and the lower substrate, wherein the upper substrate comprises: an upper transparent substrate and a transparent conductive layer disposed on the upper transparent substrate, i.e. on a side of the upper transparent substrate facing the lower substrate; the lower substrate comprises: a lower transparent substrate and a first sensing electrode layer, an insulating layer and a second sensing electrode layer sequentially disposed on the lower transparent substrate, i.e. on a side of the lower transparent substrate facing the upper substrate, wherein the first sensing electrode layer comprises a plurality of first sensing electrodes, the second sensing electrode layer comprises a plurality of second sensing electrodes that cross over the first sensing electrodes, and the insulating layer is configured to insulate the first sensing electrodes and the second sensing electrodes, to thus form touch sensing capacitors.

First claim

The invention claimed is:

1. A touch screen usable for realizing 3D display, comprising:
an upper substrate and a lower substrate cell-assembled; and
liquid crystal, filled between the upper substrate and the lower substrate,
wherein the upper substrate comprises: an upper transparent substrate and a transparent conductive layer disposed on a side of the upper transparent substrate facing the lower substrate, and the upper substrate is configured to be touched directly in operation;
the lower substrate comprises: a lower transparent substrate and a first sensing electrode layer, an insulating layer and a second sensing electrode layer sequentially disposed on a side of the lower transparent substrate facing the upper substrate,
wherein the first sensing electrode layer comprises a plurality of first sensing electrodes, the second sensing electrode layer comprises a plurality of second sensing electrodes that cross over the first sensing electrodes, both the first sensing electrodes and the second sensing electrodes are of stripe-like electrodes, the second sensing electrodes are disposed vertically, and the insulating layer is configured to insulate the first sensing electrodes and the second sensing electrodes, to thus form touch sensing capacitors;
and the transparent conductive layer has a stripe shape and has a plurality of protrusions at locations where the transparent conductive layer directly corresponds to the second sensing electrodes of the lower substrate, the plurality of protrusions are formed integrally with the transparent conductive layer and are formed into circular bosses.

2. The touch screen claimed as claim 1 , wherein the stripe-like transparent conductive layer corresponds to the second sensing electrodes of the lower substrate in position.

3. The touch screen claimed as claim 1 , wherein the first sensing electrodes are perpendicular to the second sensing electrodes.

4. The touch screen claimed as claim 1 , wherein the upper substrate further comprises an insulating layer, and the transparent conductive layer is disposed between the insulating layer and the upper transparent substrate.

5. The touch screen claimed as claim 1 , wherein the lower substrate further comprises an alignment layer, and the first sensing electrode layer, the insulating layer and the second sensing electrode layer are disposed between the alignment layer and the lower transparent substrate in this order.

6. A display device, comprising the touch screen claimed as claim 1 .

7. A manufacturing method of the touch screen claimed as claim 1 , comprising:
manufacturing a transparent conductive layer on an upper transparent substrate, so as to attain an upper substrate, wherein the upper substrate is configured to be touched directly in operation;
manufacturing a first sensing electrode layer, an insulating layer and a second sensing electrode layer on a lower transparent substrate in sequence, so as to attain a lower substrate, wherein the first sensing electrode layer comprises a plurality of first sensing electrodes, the second sensing electrode layer comprises a plurality of second sensing electrodes that cross over the first sensing electrodes, both the first sensing electrodes and the second sensing electrodes are of stripe-like electrodes, and the second sensing electrodes are disposed vertically;
cell-assembling the upper substrate and the lower substrate to form a cell and filling liquid crystal into the cell, so that the touch screen is formed, wherein a side of the upper transparent substrate on which the transparent electrode layer is formed faces a side of the lower transparent substrate on which the first sensing electrode layer, the insulating layer and the second sensing electrode layer are formed;
wherein the transparent conductive layer has a stripe shape and has a plurality of protrusions provided at locations where the transparent conductive layer directly corresponds to the second sensing electrodes of the lower substrate, the plurality of protrusions are formed integrally with the transparent conductive layer and are formed into circular bosses.

8. The manufacturing method claimed as claim 7 , wherein the manufacturing the transparent conductive layer on the upper transparent substrate so as to attain the upper substrate further comprises:
providing an insulating layer on the transparent conductive layer of the upper transparent substrate.

9. The manufacturing method claimed as claim 7 , wherein the manufacturing the first sensing electrode layer, the insulating layer and the second sensing electrode layer on the lower transparent substrate so as to attain the lower substrate further comprises:
providing an alignment layer on the lower transparent substrate on which the first sensing electrode layer, the insulating layer and the second sensing electrode layer are formed.

10. The manufacturing method claimed as claim 7 , wherein the first sensing electrodes cross over the second sensing electrode layer, and the insulating layer is configured to insulate the first sensing electrodes and the second sensing electrodes.

11. The manufacturing method claimed as claim 7 , wherein the transparent conductive layer in the stripe shape corresponds to the second sensing electrodes of the lower substrate.

Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Long Jun
• Liu Junguo
• Wu Hao
• Li Rui

Classifications

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F3/044 Primary

  by capacitive means · CPC title

• H04N13/04

  Electricity · mapped topic

• H04N13/30

  Image reproducers (optical systems for producing stereoscopic or other three-dimensional [3D] effects G02B30/00) · CPC title