Rimless display device and preparation method thereof

• US 10,482,799 B2
• Filed: 11/30/2016
• Issued: 11/19/2019
• Est. Priority Date: 12/16/2015
• Status: Active Grant

• Current Assignee: Kunshan New Flat Panel Display Technology Center Co. Ltd., Kunshan Govisionox Optoelectronics Co., Ltd (Visionox Technology, Inc.)
• Original Assignee: Kunshan New Flat Panel Display Technology Center Co. Ltd.
• Inventors: Yongxin, Cui, Suhua, Li, Baoyou, Wang
• Primary Examiner(s): Le, Dung A.
• Application Number:
  US15/780,442
• Publication Number:
  US 20180357941A1
• Time in Patent Office: 1,084 Days
• CPC Class Codes: G06F 1/1637 Details related to the display arrangement, including those related to the mounting of the display in the housing
• CPC Class Codes: G06F 1/1652 the display being flexible, e.g. mimicking a sheet of paper, or rollable
• CPC Class Codes: G09F 9/301 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
• CPC Class Codes: G09F 9/33 being semiconductor devices, e.g. diodes
• CPC Class Codes: H05K 1/028 Bending or folding regions of flexible printed circuits H05K1/0283 takes precedence
• CPC Class Codes: H05K 1/189 characterised by the use of a flexible or folded printed circuit H05K3/326 takes precedence
• CPC Class Codes: H05K 2201/10106 Light emitting diode [LED]
• CPC Class Codes: H05K 2201/10128 Display
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: Y02E 10/549 Organic PV cells

Abstract

A rimless display device and a preparation method thereof, the rimless display device comprises a flexible substrate formed on a rigid base plate (1), the flexible substrate is provided with a display region (2) having an organic light-emitting layer arranged therein and a non-display region (3), wherein, after a part of the rigid base plate at a location corresponding to the non-display region (3) is removed, the non-display region (3) of the flexible substrate is fixed on a lateral surface or a rear surface of the display device after the non-display region (3) is folded. This rimless display device can achieve a real rimless display screen body, thereby further increasing the screen proportion and greatly improving the view effect.

Claims

1. A rimless display device, comprising

a flexible substrate, provided with a display region having an organic light-emitting layer arranged therein and a non-display region;

wherein the non-display region of the flexible substrate is fixed on a lateral surface or a rear surface of the display device after the non-display region is folded,

wherein the non-display region is provided with an integrated circuit zone and a gate driving circuit zone, and the gate driving circuit zone has a hollowed-out structure.

2. The rimless display device according to claim 1, wherein the flexible substrate is placed on a rigid base plate.

3. The rimless display device according to claim 1, wherein the non-display region is fixed on a lateral surface or a rear surface of the display device after the non-display region is folded along a boundary between the display region and the non-display region.

4. The rimless display device according to claim 1, wherein the parts of the non-display region on two neighboring sides of the display region have a disconnected structure.

5. The rimless display device according to claim 4, further comprising a drive circuit board assembly arranged on a side of the rigid base plate away from the organic light-emitting layer, wherein, the drive circuit board assembly and the display region have overlapping projections on the flexible substrate.

6. The rimless display device according to claim 5, wherein when the rimless display device is a top-emitting display device, the non-display region is fixed on a rear surface of the drive circuit board assembly after the non-display region is folded;

when the rimless display device is a bottom-emitting display device, the non-display region is fixed on a lateral surface of the drive circuit board assembly after the non-display region is folded.

7. A method of making a rimless display device, comprising the following steps:

(1) providing a flexible substrate on a rigid base plate, the flexible substrate having a display region and a non-display region, and providing a drive circuit board assembly on one side of the rigid base plate away from the flexible substrate;

(2) preparing an organic light-emitting layer in the display region, and preparing integrated circuit and gate driving circuit in the non-display region, and making a part of the non-display region where the gate driving circuit is located into a hollowed-out structure;

(3) removing a part of the rigid base plate at a location corresponding to the non-display region, and fixing the non-display region on a lateral surface or a rear surface of the drive circuit board assembly after folding the non-display region.

8. The method of making a rimless display device according to claim 7, wherein when the display device is a bottom-emitting display device, the step (3) comprises:

removing the part of the rigid base plate at a location corresponding to the non-display region, and fixing the non-display region on a lateral surface of the drive circuit board assembly after folding the non-display region.

9. The method of making a rimless display device according to claim 7, wherein when the display device is a top-emitting display device, the step (3) comprises:

removing the part of the rigid base plate at a location corresponding to the non-display region, and fixing the non-display region on a rear surface of the drive circuit board assembly after folding the non-display region.