# US 11,908,350 B2 · Display device

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- Number: US 11,908,350 B2
- Document ID: US11908350B2
- Status: Granted
- Kind: B2
- Application number: 17/327,793
- Filed: 2021-05-24
- Published: 2021-12-30
- Granted: 2024-02-20
- Earliest claimed: 2020-06-24
- Assignees: Innolux Corporation
- Applicants: InnoLux Corporation
- Inventors: Yuan-Lin Wu; Tsung-Han Tsai
- Web page: https://patentgrep.com/patent/US11908350B2

## CPC

- G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable}
- G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED}
- H04M 1/0268: {including a flexible display panel}
- H10K 59/12: Active-matrix OLED [AMOLED] displays
- H10K 59/873: {Encapsulations}
- H10K 77/111: {Flexible substrates}
- H10W 42/60: protecting against electrostatic charges or discharges, e.g. Faraday shields (integrated devices comprising arrangements for electrical protection H10D89/60)
- G09G 2330/04: Display protection
- H04M 1/0237: {Sliding mechanism with one degree of freedom}
- H10K 2102/311: {Flexible OLED}
- Y02E 10/549: Organic PV cells
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A display device includes a rollable display panel and a discharger. The rollable display panel with a first portion and a second portion includes a displaying side and a non-displaying side opposite to the displaying side. The discharger is disposed on one of the displaying side and the non-displaying side, wherein the discharger is positioned between the first portion and the second portion when the rollable display panel is rolled and the first portion and the second portion move close to each other.

## Claims

### Claim 1

A display device, comprising:
a rollable display panel comprising a first portion and a second portion the rollable display panel having a displaying side and a non-displaying side opposite to the displaying side, the rollable display panel comprising:
a substrate;
a plurality of light emitting units disposed on the substrate; and
a cover layer disposed on the substrate; and
a discharger disposed on one of the displaying side and the non-displaying side of the rollable display panel and outside the rollable display panel,
wherein in a rolled mode, the discharger is positioned between the first portion and the second portion of the rollable display panel.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the discharger is a conductive layer having a conductivity ranged from 1*104 to 1*108 m−1 ohm−1.

### Claim 3 (depends on 2)

The display device of claim 2, wherein the conductive layer is additionally connected to a conductor via a conductive glue.

### Claim 4 (depends on 2)

The display device of claim 2, wherein the conductive layer is grounded by being electrically connected to a common voltage node.

### Claim 5 (depends on 4)

The display device of claim 4, wherein the common voltage node is disposed on a circuit board.

### Claim 6 (depends on 1)

The display device of claim 1, wherein the discharger is disposed on the non-displaying side.

### Claim 7 (depends on 1)

The display device of claim 1, wherein the discharger is disposed on the displaying side.

### Claim 8 (depends on 1)

The display device of claim 1, wherein the discharger comprises a first via.

### Claim 9 (depends on 8)

The display device of claim 8, wherein the substrate comprises a second via, and the first via of the discharger is disposed corresponding to the second via of the substrate.

### Claim 10 (depends on 8)

The display device of claim 8, wherein in the rolled mode, the display device comprises a rolled structure and a non-rolled structure, and the rolled structure comprises the first via of the discharger.