Display device and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-2016187686-A1
Application number	US-201514743939-A
Country	US
Kind code	A1
Filing date	Jun 18, 2015
Priority date	Dec 25, 2014
Publication date	Jun 30, 2016
Grant date	—

Abstract

A display device is disclosed. The display device includes a first display substrate, an opposite substrate, and a sealing material forming a sealed area including a display area, where the sealing material is disposed between the first display substrate and the opposite substrate. The first display substrate includes a substrate and a flexible thin film, where the flexible thin film includes a first area entirely covering the display area, and a second area beyond the substrate. In addition, a first circuit is disposed on the first area, and a second circuit is disposed on the second area.

First claim

What is claimed is:

1 . A display device, comprising:
a first display substrate; an opposite substrate; a sealing material forming a sealed area comprising a display area, wherein the sealing material is disposed between the first display substrate and the opposite substrate, wherein the first display substrate comprises a substrate and a flexible thin film, wherein the flexible thin film comprises:
a first area entirely covering the display area, and
a second area beyond the substrate;
a first circuit disposed on the first area; and a second circuit disposed on the second area.

2 . The display device according to claim 1 , wherein:
the first display substrate comprises an array substrate, the opposite substrate is a color filter substrate, and liquid crystals are between the array substrate and the color filter substrate in the display area.

3 . The display device according to claim 1 , wherein:
the substrate of the first display substrate comprises four edges around the substrate, wherein at least one the four edges is aligned with an outer edge of the sealing material.

4 . The display device according to claim 3 , wherein three edges of the substrate of the first display substrate are aligned with outer edges of the sealing material.

5 . The display device according to claim 1 , wherein edges of the opposite substrate are aligned with outer edges of the sealing material.

6 . The display device according to claim 1 , wherein the flexible thin film in the second area is bent to be fitted onto a side of the display panel.

7 . The display device according to claim 6 , wherein the flexible thin film in the second area is bent to the side of the display panel toward the substrate.

8 . The display device according to claim 1 , wherein transmissivity of the flexible thin film is greater than 90%, and a highest endurable temperature of the flexible thin film is not less than 200° C.

9 . The display device according to claim 1 , wherein the first circuit comprises a pixel circuit, and the second circuit comprises a peripheral circuit.

10 . The display device according to claim 9 , wherein the peripheral circuit comprises at least one of a gate driving circuit, an electrode wire circuit, and an integrated control circuit.

11 . The display device according to claim 1 , further comprising a backlight module, wherein the backlight module is disposed on a surface of the first display substrate facing away from the opposite substrate.

12 . The display device according to claim 11 , wherein the flexible thin film in the second area is bent to be fitted onto sides of the first display substrate and the backlight module.

13 . The display device according to claim 12 , wherein the flexible thin film in the second area extends beyond a thickness of the first display substrate and the backlight module, and wherein the flexible thin film is bent to be fitted onto a surface of the backlight module away from the first display substrate.

14 . A method for manufacturing a display device, the method comprising:
preparing a first substrate; fabricating a flexible thin film on the first substrate to entirely cover the first substrate, wherein the flexible thin film comprises:
a first area corresponding to a display area, and
a second area, on the first substrate;
fabricating a first circuit on the first area and a second circuit on the second area; preparing a second substrate; disposing and aligning a sealing material between the first substrate and the second substrate, wherein the display area is sealed by the sealing material; and removing excess parts of the first substrate and the second substrate to obtain a first display substrate and an opposite substrate, wherein the first display substrate comprises a substrate and the flexible thin film, the second area of the flexible thin film extends beyond an area of the substrate, the excess part of the first substrate is the first substrate extending beyond the sealing material, and the excess part of the second substrate is the second substrate extending beyond the sealing material.

15 . The method according to claim 14 , wherein the excess part of the first substrate is removed along at least one outer edge of the sealing material so that at least one edge of the substrate of the first display substrate is aligned with the outer edge of the sealing material.

16 . The method according to claim 15 , wherein the excess part of the first substrate is removed along three outer edges of the sealing material so that three edges of the substrate of the first display substrate are aligned with outer edges of the sealing material.

17 . The method according to claim 15 , wherein the excess part of the second substrate is removed along outer edges of the sealing material so that edges of the opposite substrate are aligned with the outer edges of the sealing material.

18 . The method according to claim 14 , wherein after the excess parts of the first substrate and the second substrate are removed, the method further comprises:
bending the flexible thin film in the second area for fitting onto a side of the display panel.

19 . The method according to claim 14 , wherein:
the first circuit comprises a pixel circuit, and the second circuit comprises a peripheral circuit, and the first circuit and the second circuit are fabricated at temperature no higher than a highest endurable temperature of the flexible thin film.

20 . The method according to claim 14 , wherein after the excess parts of the first substrate and the second substrate are removed, the method further comprises:
disposing a backlight module on the first display substrate side; bending the flexible thin film in the second area; and fitting the bent flexible thin film in the second area onto sides of the display panel and the backlight module.

21 . The method according to claim 20 , wherein a length of the flexible thin film in the second area extends beyond a thickness of the substrate in the first display substrate and the backlight module, and wherein the method further comprises bending the flexible thin film extending beyond the thickness for fitting onto a surface of the backlight module away from the first display substrate.

22 . The method according to claim 21 , further comprising fixing and protecting the bent flexible thin film in the second area.

Assignees

• Shanghai Tianma Micro Elect Co
• Tianma Micro Electronics Co Ltd

Inventors

• Lou Junhui
• Wu Yong

Classifications

• G02F1/133514

  Colour filters · CPC title

• G02F1/1339 Primary

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F1/13452

  Conductors connecting driver circuitry and terminals of panels · CPC title

• G02F1/133305 Primary

  Flexible substrates, e.g. plastics, organic film · CPC title

• G02F1/13306

  Circuit arrangements or driving methods for the control of single liquid crystal cells (G02F1/132, G02F1/133382 take precedence) · CPC title