Electronic device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-12298548-B2
Application number	US-202318213224-A
Country	US
Kind code	B2
Filing date	Jun 22, 2023
Priority date	Apr 7, 2020
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

An electronic device includes a display panel that has a first area and a second area; a polarizer including a polarizer layer that has a polarization area and a transmission area, a protection layer disposed under the polarizer layer, and a plurality of retarders disposed under the protection layer for retarding a phase of light incident thereon.

First claim

What is claimed is:

1. An electronic device comprising:
an electronic module;
a display panel comprising a first area overlapping the electronic module and a second area at least partially surrounding at least a portion of the first area; and
a polarizer disposed on the display panel,
wherein the first area comprises:
a plurality of light emitting areas; and
a plurality of non-light-emitting area not overlapping the light emitting areas,

wherein the polarizer comprises:
a polarizer layer, wherein the polarizer layer has a polarization area and a transmission area overlapping the first area with at least a portion of the transmission area comprising a plurality of non-polarization portions;
a protection layer disposed under the polarizer layer; and
a plurality of retarders disposed under the protection layer that retard a phase of light incident thereon,

wherein the polarizer layer comprises an elongated film member and a light-absorbing material adsorbed to the elongated film member,
wherein each of the non-polarization portions includes the elongated film member where the light-absorbing material is detached from the elongated film member, and
wherein each of the non-light-emitting areas overlaps with each of the non-polarization portions.

2. The electronic device of claim 1 , wherein the non-polarization portion has a light transmittance substantially equal to or greater than about 80%.

3. The electronic device of claim 1 , wherein the light-absorbing material comprises at least one of iodine and dichroic dye.

4. The electronic device of claim 1 , wherein the electronic module comprises a camera module.

5. The electronic device of claim 1 , further comprising:
a window disposed on the polarizer; and
an adhesive layer disposed between the polarizer and the window.

6. The electronic device of claim 1 , wherein each of the non-polarization portions is formed by irradiating a laser beam onto a portion of the polarizer layer to detach the light-absorbing material on the polarizer layer, and providing a substantially neutral solution including water onto the portion of the polarizer layer irradiated with the laser beam to extract the light-absorbing material detached by the laser beam.

7. The electronic device of claim 1 , wherein the transmission area overlaps the electronic module along a thickness direction of the electronic device.

8. The electronic device of claim 1 ,
wherein the non-polarization portions are first non-polarization portions,
wherein the transmission area further comprises a plurality of second non-polarization portions and a plurality of polarization portions between the first non-polarization portions and the second non-polarization portions, and
wherein the first non-polarization portions, the polarization portions, and the second non-polarization portions overlap the electronic module.

9. The electronic device of claim 8 ,
wherein the first non-polarization portions, the second non-polarization portions, and the polarization portions are formed by disposing a mask over the polarizer and irradiating a laser beam onto a portion of the polarizer layer including the first non-polarization portions, the second non-polarization portions, and the polarization portions to detach light-absorbing material on the polarizer layer, and providing a substantially neutral solution having onto the portion of the polarizer layer irradiated with the laser beam to extract the light-absorbing material detached by the laser beam.

Assignees

• Samsung Display Co Ltd

Inventors

• Chai Youngki
• Won Seonggeun
• Lee Kwanhee
• Kim Youngji
• Um Yiseul
• Lee Younghoon
• Choi Young Seo

Classifications

• G02B5/003

  Light absorbing elements · CPC title

• H04M1/0264

  for a camera module assembly · CPC title

• H04M1/0266 Primary

  for a display module assembly · CPC title

• G02B5/30

  Polarising elements (light-modulating devices with active elements G02F1/00) · CPC title

• G02B5/3083 Primary

  Birefringent or phase retarding elements (G02B5/3008, G02B5/3016 take precedence; systems for polarisation control G02B27/286; manufacturing phase modulating patterns by lithographic processes G03F7/001) · CPC title