Electronic device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-11719872-B2
Application number	US-202117157157-A
Country	US
Kind code	B2
Filing date	Jan 25, 2021
Priority date	Apr 7, 2020
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

According to one aspect of the invention, a method of manufacturing an electronic device includes the steps of: providing a display panel; providing a polarizer including a polarizer layer at an outermost layer thereof on the display panel; irradiating a laser beam onto a portion of the polarizer layer; and providing a substantially neutral solution having a temperature from about 5° C. to about 40° C. onto the portion of the polarizer layer irradiated with the laser beam.

First claim

What is claimed is:

1. A method of manufacturing an electronic device, the method comprising the steps of:
providing a display panel;
providing a polarizer including a polarizer layer at an outermost layer thereof on the display panel;
irradiating a laser beam onto a portion of the polarizer layer; and
providing a substantially neutral solution having a temperature from about 5° C. to about 40° C. onto the portion of the polarizer layer irradiated with the laser beam,
wherein the polarizer layer comprises an elongated film and a light-absorbing material adsorbed to the elongated film, the step of irradiating of the laser beam comprises detaching the light-absorbing material by the laser beam, and the step of providing of the neutral solution comprises extracting the detached light-absorbing material by the neutral solution.

2. The method of claim 1 , wherein the laser beam has a wavelength substantially equal to or greater than about 340 nm and substantially equal to or smaller than about 810 nm.

3. The method of claim 1 , wherein the laser beam comprises a continuous wave laser beam.

4. The method of claim 1 , wherein the laser beam comprises a pulse laser beam having a pulse width of a nanosecond or longer.

5. The method of claim 1 , wherein the laser beam has an output substantially equal to or greater than about 0.5 W and equal to or smaller than about 10 W.

6. The method of claim 1 , wherein the neutral solution comprises a water.

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

8. The method of claim 1 , wherein the display panel comprises:
a first area defining a hole; and
a second area surrounding at least a portion of the first area, with the portion of the polarizer layer irradiated with the laser beam overlapping the first area.

9. The method of claim 1 , wherein the step of irradiating the laser beam onto the portion of the polarizer layer comprises patterning the portion of the polarizer layer to create a plurality of non-polarization portions and a polarization portion at least partially surrounding the non-polarization portions.

10. The method of claim 9 , wherein the non-polarization portions are made by laser beams emitted from a plurality of light sources.

11. The method of claim 1 , wherein the polarizer comprises a polarizing plate that includes: the polarizer layer and a protective layer disposed under the polarizer layer; and a retarder disposed under the protective layer.

Assignees

• Samsung Display Co Ltd

Inventors

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

Classifications

• 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

• 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

• H10K71/00 Primary

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title