Display apparatus and manufacturing method thereof

• US 9,946,136 B2
• Filed: 07/16/2015
• Issued: 04/17/2018
• Est. Priority Date: 02/06/2015
• Status: Active Grant

• Current Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Original Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Inventors: Yang, Ming, Zhao, Wenqing, Dong, Xue, Guo, Renwei, Yang, Dong
• Primary Examiner(s): Nguyen, Sang V
• Application Number:
  US14/906,503
• Publication Number:
  US 20160370683A1
• Time in Patent Office: 1,006 Days
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02B 30/28 involving active lenticular arrays
• CPC Class Codes: G02B 30/31 involving active parallax barriers involving directional light or back-light sources G02B30/33
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/1343 Electrodes reflective electrodes G02F1/133553
• CPC Class Codes: G02F 1/1345 Conductors connecting electrodes to cell terminals
• CPC Class Codes: G02F 1/13452 Conductors connecting driver circuitry and terminals of panels
• CPC Class Codes: G02F 1/1533 structural features not otherwise provided for
• CPC Class Codes: G02F 1/155 Electrodes
• CPC Class Codes: G02F 1/163 Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
• CPC Class Codes: G02F 1/29 for the control of the position or the direction of light beams, i.e. deflection
• CPC Class Codes: G02F 2201/44 Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: H04N 13/305 using lenticular lenses, e.g. arrangements of cylindrical lenses
• CPC Class Codes: H04N 13/31 using parallax barriers
• CPC Class Codes: H04N 2213/001 Constructional or mechanical details
• CPC Class Codes: H05K 2201/10128 Display
• CPC Class Codes: H05K 3/361 Assembling flexible printed circuits with other printed circuits

Abstract

The present invention discloses a display apparatus and a manufacturing method thereof. The display apparatus comprises a display device, an out-cell device and a flexible printed circuit board for being connected to an external signal. The display device has a first category of leads and a second category of leads; the out-cell device has reserved leads, and the reserved leads are electrically connected to the second category of leads; and the flexible printed circuit board has a first category of pins and a second category of pins, the first category of leads are electrically connected to the first category of pins, and the second category of leads are electrically connected to the second category of pins. In this way, the reserved leads are electrically connected to the second category of leads, while the second category of leads are electrically connected to the second category of pins, thereby enabling conduction between the out-cell device and the external signal. As compared with the prior art in which the out-cell device and the display device are provided with their respective flexible printed circuit boards, the display apparatus as provided in the embodiments of the present invention omits the step of separately making a flexible printed circuit board of the out-cell device, thereby reducing the cost of production of the display apparatus and at the same time further simplifying the structure of the out-cell device of the display apparatus.

Claims

1. A display apparatus comprising:

a display device;

an out-cell device;

a flexible printed circuit board for being connected to an external signal;

wherein a binding area of the display device has a first category of leads and a second category of leads;

wherein a binding area of the out-cell device has reserved leads, the reserved leads being electrically connected to the second category of leads;

wherein the flexible printed circuit board has a first category of pins and a second category of pins, the first category of leads being electrically connected to the first category of pins, and the second category of leads being electrically connected to the second category of pins; and

wherein the out-cell device is an electrochromic device.

2. The display apparatus according to claim 1, wherein the reserved leads are electrically connected to the second category of leads via a conductive glue.

3. The display apparatus according to claim 2, wherein the conductive glue is further covered with a layer of protective glue.

4. The display apparatus according to claim 2, wherein the conductive glue is a silver colloid.

5. The display apparatus according to claim 1, wherein in the binding area of the display device, the first category of leads and the second category of leads are arranged in parallel, and the second category of leads are located at two sides or one side of the first category of leads.

6. The display apparatus according to claim 1, wherein the three-dimensional device is a liquid crystal barrier, an electrochromic grating or a liquid crystal lens.

7. The display apparatus according to claim 1, wherein the out-cell device comprises a transparent electrode, the transparent electrode being an interdigitated structure or a laminated structure.

8. A method for manufacturing the display apparatus according to claim 1, comprising:

forming, in the binding area of the display device, a first category of leads and a second category of leads;

forming, in the binding area of the out-cell device, reserved leads;

electrically connecting the reserved leads of the out-cell device to the second category of leads of the display device; and

electrically connecting the first category of leads of the display device to the first category of pins of the flexible printed circuit board, and electrically connecting the second category of leads of the display device to the second category of pins of the flexible printed circuit board.

9. The method according to claim 8, wherein the step of electrically connecting the reserved leads of the out-cell device to the second category of leads of the display device comprises electrically connecting the reserved leads to the second category of leads via a conductive glue.

10. The method according to claim 9, further comprising after electrically connecting the reserved leads to the second category of leads via a conductive glue, covering the conductive glue with a layer of protective glue.

11. The method according to claim 9, wherein the conductive glue is a silver colloid.

12. The method according to claim 8, wherein in the binding area of the display device, the first category of leads and the second category of leads are arranged in parallel, and the second category of leads are located at two sides or one side of the first category of leads.

13. The method according to claim 8, wherein the out-cell device is a three-dimensional device, a touch control device or an electrochromic device.

14. The method according to claim 13, wherein the three-dimensional device is a liquid crystal barrier, an electrochromic grating or a liquid crystal lens.

15. The method according to claim 8, wherein the out-cell device comprises a transparent electrode, the transparent electrode being an interdigitated structure or a laminated structure.

16. The method according to claim 8, wherein a conductive glue is used to electrically connect the reserved leads of the out-cell device to the second category of leads of the display device.

17. The method according to claim 16, further comprising:

after electrically connecting the reserved leads of the out-cell device to the second category of leads of the display device using a conductive glue, coating a layer of protective glue on the conductive glue.