Display device

• US 10,531,563 B2
• Filed: 10/30/2017
• Issued: 01/07/2020
• Est. Priority Date: 11/21/2016
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: Kuo, Chin-Cheng, Yang, Chia-Chun, Huang, Wen-Cheng
• Primary Examiner(s): Dinh, Tuan T
• Application Number:
  US15/796,917
• Publication Number:
  US 20180146555A1
• Time in Patent Office: 799 Days
• Field of Search: 361749-750, 361760, 361775-777, 361803, 174254-260, 349149-153
• CPC Class Codes: H05K 1/148 Arrangements of two or more hingeably connected rigid printed circuit boards, i.e. connected by flexible means
• CPC Class Codes: H05K 1/181 associated with surface mounted components
• CPC Class Codes: H05K 2201/041 Stacked PCBs, i.e. having neither an empty space nor mounted components in between
• CPC Class Codes: H05K 2201/09027 Non-rectangular flat PCB, e.g. circular
• CPC Class Codes: H05K 2201/10106 Light emitting diode [LED]
• CPC Class Codes: H05K 2201/10128 Display
• CPC Class Codes: H05K 2201/10522 Adjacent components
• CPC Class Codes: H05K 2203/0126 Dispenser, e.g. for solder paste, for supplying conductive paste for screen printing or for filling holes
• CPC Class Codes: H05K 3/284 for encapsulating mounted components H05K1/185 takes precedence
• CPC Class Codes: H05K 3/303 Surface mounted components, e.g. affixing before soldering, aligning means, spacing means H05K3/32 takes precedence
• CPC Class Codes: H05K 3/361 Assembling flexible printed circuits with other printed circuits

Abstract

A display device and a manufacturing method thereof are provided. The display device includes a first substrate, a second substrate, a drive IC and a protection layer. The first substrate has a first region and a second region. The second substrate is correspondingly disposed on the first region. The drive IC is disposed on the second region. The protection layer is disposed enclosing the drive IC, and the protection layer has a maximum height larger than the height of the drive IC.

Claims

1. A display device, comprising:

a first substrate having a first region and a second region;

a second substrate correspondingly disposed on the first region and having an outer side;

a plurality of drive ICs disposed on the second region, a printed circuit board and a plurality of flexible circuit boards, wherein the plurality of drive ICs are electrically connected to the printed circuit board through the plurality of flexible circuit boards, and at least one of the plurality of flexible circuit boards is disposed between two of the plurality of drive ICs;

a protection layer disposed on the second region;

a polarizer disposed on the outer side of the second substrate; and

a conductive adhesive layer disposed above one of the plurality of drive ICs and the protection layer, wherein the conductive adhesive layer has a terminal portion, the terminal portion is disposed on the outer side of the second substrate, the terminal portion is not disposed on the polarizer, the protection layer is disposed enclosing the plurality drive ICs, and the protection layer has a maximum height larger than a maximum height of the one of the plurality of drive ICs.

2. The display device according to claim 1, wherein a top surface of the protection layer is higher than a top surface of the one of the plurality of drive ICs, and a distance between the top surface of the protection layer and the top surface of the one of the plurality of drive ICs in a normal direction of the first substrate ranges from 0.01 mm to 0.35 mm.

3. The display device according to claim 1, wherein the protection layer comprises a recess corresponding to the one of the plurality of drive ICs.

4. The display device according to claim 1, wherein the protection layer comprises adhesives, epoxy resin or polyurethane.

5. The display device according to claim 1, wherein the protection layer covers a portion of the at least one of the plurality of flexible circuit boards.

6. The display device according to claim 1,

wherein the plurality of flexible circuit boards and the plurality of drive ICs are staggeredly disposed on the first substrate and along an extending direction of one lateral side of the second substrate.

7. The display device according to claim 1, further comprising:

an insulating layer disposed between the conductive adhesive layer and the protection layer, wherein the insulating layer and the protection layer are separated by a gap.

8. The display device according to claim 1, further comprising:

an insulating layer disposed between the conductive adhesive layer and the protection layer, wherein the insulating layer contacts the protection layer.

9. The display device according to claim 2, wherein at least part of the top surface of the protection layer is curved.

10. The display device according to claim 2, wherein the protection layer covers at least part of the top surface of the one of the plurality of drive ICs.

11. The display device according to claim 7, wherein the gap ranges from 0.01 mm to 0.25 mm.