# US 12,120,910 B2 · Display module and mobile terminal

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- Number: US 12,120,910 B2
- Document ID: US12120910B2
- Status: Granted
- Kind: B2
- Application number: 17/623,934
- Filed: 2021-12-23
- Published: 2023-06-22
- Granted: 2024-10-15
- Earliest claimed: 2021-12-22
- Assignees: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Applicants: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Inventors: Hui Chen
- Web page: https://patentgrep.com/patent/US12120910B2

## CPC

- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- H04M 1/0266: {for a display module assembly}
- H10H 20/855: Optical field-shaping means, e.g. lenses
- H10H 29/10: Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00 (active-matrix LED displays H10H29/30)
- H10K 59/35: comprising red-green-blue [RGB] subpixels
- H10K 59/38: comprising colour filters or colour changing media [CCM]
- H10K 59/40: OLEDs integrated with touch screens
- H10K 59/873: {Encapsulations}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS

## Abstract

A display module and a mobile terminal are disclosed. The display module includes a display panel, a color film layer, and an ultraviolet (UV) blocking film layer disposed on a side of the color film layer away from the display panel. The UV blocking film layer covers the color film layer. A material of the UV blocking film layer includes an optical resin material with a UV blocking function. A transmittance of the UV blocking film layer to UV rays below 400 nm is less than 1%, and a transmittance of the UV blocking film layer to visible light is greater than 92%.

## Claims

### Claim 1

A display module, comprising:
a display panel; and
a color film layer disposed on a side of a light-exit surface of the display panel,
wherein an ultraviolet (UV) blocking film layer is disposed on a side of the color film layer away from the display panel, the UV blocking film layer covers the color film layer, a material of the UV blocking film layer comprises an optical resin material with a UV blocking function, a transmittance of the UV blocking film layer to UV rays below 400 nm is less than 1%, and a transmittance of the UV blocking film layer to visible light is greater than 92%.

### Claim 2 (depends on 1)

The display module as claimed in claim 1, wherein a material of the UV blocking film layer comprises triacetyl cellulose (TAC), cyclo olefin polymer (COP), polycarbonate (PC), or polymethyl methacrylate (PMMA).

### Claim 3 (depends on 2)

The display module as claimed in claim 2, wherein the UV blocking film layer comprises at least one UV blocking unit layer, the UV blocking unit layer comprises a UV blocking substrate layer and a UV blocking adhesive layer that are disposed in a stacked manner, and the UV blocking adhesive layer is disposed on a side of the UV blocking substrate layer close to the color film layer.

### Claim 4 (depends on 3)

The display module as claimed in claim 3, wherein a thickness of the UV blocking film layer ranges from 50 to 250 um, and an elastic modulus of the UV blocking film layer ranges from 1 to 9 GPa.

### Claim 5 (depends on 4)

The display module as claimed in claim 4, wherein the UV blocking film layer structure comprises one UV blocking unit layer, the UV blocking substrate layer has a thickness ranging from 20 to 100 um, and the UV blocking adhesive layer has a thickness ranging from 15 to 50 um.

### Claim 6 (depends on 4)

The display module as claimed in claim 4, wherein the UV blocking film layer comprises at least two UV blocking unit layers, and the UV blocking unit layers are disposed in a stacked manner.

### Claim 7 (depends on 6)

The display module as claimed in claim 6, wherein the UV blocking film layer comprises two UV blocking unit layers, the UV blocking substrate layer in the UV blocking unit layer has a thickness ranging from 20 to 40 um, and the UV blocking adhesive layer has a thickness ranging from 15 to 50 um.

### Claim 8 (depends on 3)

The display module as claimed in claim 3, wherein an adhesive layer is disposed on a surface of the UV blocking film layer away from the color film layer.

### Claim 9 (depends on 8)

The display module as claimed in claim 8, wherein a material of the UV blocking adhesive layer comprises pressure sensitive adhesive (PSA), and a material of the adhesive layer comprises photosensitive adhesive.

### Claim 10 (depends on 3)

The display module as claimed in claim 3, wherein in the UV blocking film layer, the UV blocking substrate layer or the UV blocking adhesive layer are provided with UV blocking particles.

### Claim 11

A mobile terminal, comprising a display module and a terminal body, wherein the terminal body and the display module are combined into one body, and the display module comprises:
a display panel; and
a color film layer disposed on a side of a light-exit surface of the display panel,
wherein an ultraviolet (UV) blocking film layer is disposed on a side of the color film layer away from the display panel, the UV blocking film layer covers the color film layer, a material of the UV blocking film layer comprises an optical resin material with a UV blocking function, a transmittance of the UV blocking film layer to UV rays below 400 nm is less than 1%, and a transmittance of the UV blocking film layer to visible light is greater than 92%.

### Claim 12 (depends on 11)

The mobile terminal as claimed in claim 11, wherein a material of the UV blocking film layer comprises triacetyl cellulose (TAC), cyclo olefin polymer (COP), polycarbonate (PC), or polymethyl methacrylate (PMMA).

### Claim 13 (depends on 12)

The mobile terminal as claimed in claim 12, wherein the UV blocking film layer comprises at least one UV blocking unit layer, the UV blocking unit layer comprises a UV blocking substrate layer and a UV blocking adhesive layer that are disposed in a stacked manner, and the UV blocking adhesive layer is disposed on a side of the UV blocking substrate layer close to the color film layer.

### Claim 14 (depends on 13)

The mobile terminal as claimed in claim 13, wherein a thickness of the UV blocking film layer ranges from 50 to 250 um, and an elastic modulus of the UV blocking film layer ranges from 1 to 9 GPa.

### Claim 15 (depends on 14)

The mobile terminal as claimed in claim 14, wherein the UV blocking film layer structure comprises one UV blocking unit layer, the UV blocking substrate layer has a thickness ranging from 20 to 100 um, and the UV blocking adhesive layer has a thickness ranging from 15 to 50 um.

### Claim 16 (depends on 14)

The mobile terminal as claimed in claim 14, wherein the UV blocking film layer comprises at least two UV blocking unit layers, and the UV blocking unit layers are disposed in a stacked manner.

### Claim 17 (depends on 16)

The mobile terminal as claimed in claim 16, wherein the UV blocking film layer comprises two UV blocking unit layers, the UV blocking unit layer in the UV blocking substrate layer has a thickness ranging from 20 to 40 um, and the UV blocking adhesive layer has a thickness ranging from 15 to 50 um.

### Claim 18 (depends on 13)

The mobile terminal as claimed in claim 13, wherein an adhesive layer is disposed on a surface of the UV blocking film layer away from the color film layer.

### Claim 19 (depends on 18)

The mobile terminal as claimed in claim 18, wherein a material of the UV blocking adhesive layer comprises pressure sensitive adhesive (PSA), and a material of the adhesive layer comprises photosensitive adhesive.

### Claim 20 (depends on 13)

The mobile terminal as claimed in claim 13, wherein in the UV blocking film layer, the UV blocking substrate layer or the UV blocking adhesive layer are provided with UV blocking particles.
