# US 12,010,803 B2 · Display module and mobile terminal

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- Number: US 12,010,803 B2
- Document ID: US12010803B2
- Status: Granted
- Kind: B2
- Application number: 17/598,292
- Filed: 2021-07-20
- Published: 2023-07-06
- Granted: 2024-06-11
- Earliest claimed: 2021-06-24
- Assignees: Wuhan China Star Optoelectronics Technology Co., Ltd.; Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Applicants: Wuhan China Star Optoelectronics Technology Co., Ltd.; Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Inventors: Cuilin Zhu
- Web page: https://patentgrep.com/patent/US12010803B2

## CPC

- G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable}
- H05K 5/02: Details
- B32B 7/02: Physical, chemical or physicochemical properties
- B32B 7/022: Mechanical properties
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 5/18: characterised by features of a layer {of} foamed material
- B32B 15/046: {of foam}
- B32B 15/18: comprising iron or steel {(B32B15/011, B32B15/012 and B32B15/013 take precedence)}
- B32B 17/06: comprising glass as the main or only constituent of a layer, next to another layer of a specific {material}
- B32B 23/04: comprising such {cellulosic plastic} substance as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a glass layer B32B17/08)}
- B32B 27/065: {of foam}
- B32B 27/281: {comprising polyimides}
- B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers}
- B32B 27/34: comprising polyamides
- B32B 27/36: comprising polyesters
- B32B 2255/102: synthetic resin or rubber layer being a foamed layer
- B32B 2255/26: Polymeric coating
- B32B 2266/0207: Materials belonging to B32B25/00
- B32B 2266/025: Polyolefin
- B32B 2266/0278: Polyurethane
- B32B 2307/412: Transparent
- B32B 2307/42: Polarizing, birefringent, filtering
- B32B 2457/206: Organic displays, e.g. OLED
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

## Abstract

A display module and a mobile terminal are provided. The display module includes a display area and a non-display area located on a side of the display area. The non-display area includes: a support portion, a flexible display panel located on the support portion and including a bent portion, a flexible cover plate layer located on the flexible display panel, and a first flexible filling portion located between the bent portion and the flexible cover plate layer.

## Claims

### Claim 1

A display module, comprising: a display area and a non-display area located on a side of the display area, wherein the non-display area comprises:
a support portion;
a flexible display panel located on the support portion and comprising a bent portion, wherein the flexible display panel further comprises a first flat portion and a second flat portion, the first flat portion is connected to a first end of the bent portion, the second flat portion is connected to a second end of the bent portion, and the first flat portion is disposed in parallel with the second flat portion;
a flexible cover plate layer located on the flexible display panel;
a first flexible filling portion located between the bent portion and the flexible cover plate layer;
a polarizing layer located on the flexible display panel;
an optical clear resin (OCR) layer located on the polarizing layer, wherein the polarizing layer and the OCR layer are located between the flexible display panel and the flexible cover plate layer, the first flexible filling portion and the OCR layer are disposed in a same layer and have an equal thickness, and the thickness of the OCR layer is greater than thicknesses of the flexible display panel and the polarizing layer, wherein in an extending direction from the display area to the non-display area, an orthographic projection of an end portion of the first flexible filling portion on the flexible cover plate layer is located in the flexible cover plate layer; and
an ultraviolet curing adhesive layer located on the bent portion, wherein a first side face of the first flexible filling portion is connected to the ultraviolet curing adhesive layer, and a second side face of the first flexible filling portion is connected to the flexible cover plate layer, wherein the ultraviolet curing adhesive layer and the polarizing layer are disposed in a same layer, and a thickness of the ultraviolet curing adhesive layer is greater than the thickness of the polarizing layer, wherein a junction of the ultraviolet curing adhesive layer and the polarizing layer is between a junction of the first flexible filling portion and the OCR and the bent portion;
wherein the support portion comprises a first back panel layer, an elastic support layer, a rigid support layer, a reinforced support layer, and a second back panel layer disposed in sequence, the first back panel layer is attached to the first flat portion, and the second back panel layer is attached to the second flat portion.

### Claim 2 (depends on 1)

The display module according to claim 1, wherein the first back panel layer, the elastic support layer, the rigid support layer, and the reinforced support layer incrementally protrude in sequence in the extending direction from the display area to the non-display area.

### Claim 3 (depends on 2)

The display module according to claim 2, wherein a second flexible filling portion is disposed between the bent portion and the support portion.

### Claim 4 (depends on 3)

The display module according to claim 3, wherein an elasticity modulus of the second flexible filling portion is less than an elasticity modulus of the first flexible filling portion.

### Claim 5 (depends on 4)

The display module according to claim 4, wherein an orthographic projection of the first back panel layer on the reinforced support layer is located in an orthographic projection of the second back panel layer on the reinforced support layer.

### Claim 6 (depends on 5)

The display module according to claim 5, wherein a junction of the bent portion and the first flat portion is located on the first back panel layer, and a junction of the bent portion and the second flat portion is located on the second back panel layer.

### Claim 7 (depends on 6)

The display module according to claim 6, wherein a first transition sliding face is disposed on a side end portion of the first back panel layer in contact with the bent portion.

### Claim 8 (depends on 7)

The display module according to claim 7, wherein a second transition sliding face is disposed on a side end portion of the second back panel layer in contact with the bent portion.

### Claim 9 (depends on 1)

A mobile terminal, comprising a terminal body and the display module according to claim 1.