# US 2021/0242299 A1 · Display device

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2021/0242299 A1
- Document ID: US20210242299A1
- Status: Published application
- Kind: A1
- Application number: 17/238,223
- Filed: 2021-04-23
- Published: 2021-08-05
- Earliest claimed: 2018-10-25
- Assignees: Japan Display Inc.
- Applicants: Japan Display Inc.
- Inventors: Takashi SAEKI
- Web page: https://patentgrep.com/patent/US20210242299A1

## CPC

- H05K 1/028: {Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence)}
- G09F 9/00: Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00)
- G09F 9/30: in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00)
- H05B 33/02: Details
- H05K 1/0218: {by printed shielding conductors, ground planes or power plane (H05K1/0236 takes precedence)}
- H05K 9/00: Screening of apparatus or components against electric or magnetic fields (devices for absorbing radiation from an antenna H01Q17/00)
- H10K 59/126: Shielding, e.g. light-blocking means over the TFTs
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 77/111: {Flexible substrates}
- H05K 1/0393: {Flexible materials (H05K1/038 takes precedence; specific organic compositions are classified in H05K1/0313 and subgroups)}
- H05K 1/147: {at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit (H05K1/148 takes precedence)}
- H05K 1/189: characterised by the use of flexible or folded printed circuits
- H05K 2201/058: Direct connection between two or more FPCs or between flexible parts of rigid PCBs
- H05K 2201/0715: provided by an outer layer of PCB
- H05K 2201/10128: Display
- H05K 2201/10151: Sensor
- H10K 2102/311: {Flexible OLED}
- H10W 90/00: Package configurations
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

A display device includes: a flexible substrate having a first region and a second region arranged in a length direction, the flexible substrate having the second region bent around an axis extending in a width direction perpendicular to the length direction; a display circuit layer in the first region on the flexible substrate, the display circuit layer configured to display an image; a lead-out line on the flexible substrate, the lead-out line extending from the display circuit layer to the second region; and a conductive shield inside and/or outside a bend of the second region on the flexible substrate, the conductive shield covering the lead-out line.

## Claims

### Claim 1

A display device comprising:
a flexible substrate having a first region and a second region arranged in a length direction, the second region bent around an axis extending in a width direction perpendicular to the length direction;
a display circuit layer in the first region on the flexible substrate, the display circuit layer configured to display an image;
a lead-out line on the flexible substrate, the lead-out line extending from the display circuit layer to the second region; and
a conductive shield inside and/or outside the second region bending around, the conductive shield overlapping the lead-out line.

### Claim 2 (depends on 1)

The display device according to claim 1, wherein
the second region has a curved portion between the first region and an end portion, and
the display device further comprises an integrated circuit chip on the flexible substrate at a position closer to the end portion than the curved portion.

### Claim 3 (depends on 1)

The display device according to claim 1, wherein the conductive shield is electrically connected to the display circuit layer.

### Claim 4 (depends on 1)

The display device according to claim 1, wherein the conductive shield is connected to a ground potential.

### Claim 5 (depends on 1)

The display device according to claim 1, further comprising a metal sheet laminated on the flexible substrate on a side opposite to the display circuit layer, the metal sheet overlapping with the first region,
wherein the conductive shield is electrically connected to the metal sheet.

### Claim 6 (depends on 5)

The display device according to claim 5, wherein the conductive shield and the metal sheet are continuously integrated.