Display device

Patent metadata

Field	Value
Publication number	US-10823997-B2
Application number	US-201916706430-A
Country	US
Kind code	B2
Filing date	Dec 6, 2019
Priority date	Dec 18, 2018
Publication date	Nov 3, 2020
Grant date	Nov 3, 2020

Abstract

A display device comprises: a backlight unit; a liquid crystal panel comprising a lower polarizer, an upper polarizer, and a first substrate and a second substrate; and a cover plate on the liquid crystal panel, wherein a camera hole passes through the backlight unit and up to the lower polarizer, an interference prevention hole is located at a position corresponding to the camera hole, and the camera hole is not in the first substrate and the second substrate. The display device has a hole with a uniform size, decreased processing cost, increased structural rigidity, and does not have thermal deformation, can prevent defects such as generation of air bubbles, bending deformation, and distortion of a light path due to the hole and the vacuum bonding while increasing the visible light transmittance and resolution of the camera, and improving the appearance quality of the display device.

First claim

What is claimed is:

1. A display device, comprising:
a backlight unit;
a liquid crystal panel comprising a lower polarizer positioned on an upper surface of the backlight unit, an upper polarizer positioned on an upper surface of the lower polarizer, and a first substrate and a second substrate positioned between the lower polarizer and the upper polarizer;
a micro-hole passing through the first substrate and the second substrate;
a glue covering the micro-hole; and
a cover plate on an upper surface of the liquid crystal panel,
wherein a camera hole passes through the backlight unit and up to the lower polarizer, an interference prevention hole is located at a position corresponding to the camera hole in the upper polarizer, and the camera hole is not in the first substrate and the second substrate.

2. The display device of claim 1 , wherein the micro-hole is located at least one position corresponding to an edge of the camera hole.

3. The display device of claim 1 , wherein the micro-hole is 20 to 50 μm in diameter.

4. The display device of claim 1 , further comprising an adhesive film between the cover plate and the upper polarizer.

5. The display device of claim 4 , wherein a size of the adhesive film is smaller than that of the upper polarizer.

6. A display device comprising:
a backlight unit;
a liquid crystal panel comprising a lower polarizer positioned on an upper surface of the backlight unit, an upper polarizer positioned on an upper surface of the lower polarizer, and a first substrate and a second substrate positioned between the lower polarizer and the upper polarizer;
a cover plate on an upper surface of the liquid crystal panel;
wherein a camera hole passes through the backlight unit and up to the lower polarizer, an interference prevention hole is located at a position corresponding to the camera hole in the upper polarizer, and the camera hole is not in the first substrate and the second substrate,
wherein a fixed protrusion protrudes from a lower surface of the cover plate and is inserted into the interference prevention hole.

7. The display device of claim 6 , wherein the fixed protrusion is made of the same material as that of the cover plate.

8. The display device of claim 6 , wherein an outer diameter of the fixed protrusion corresponds to that of the interference prevention hole.

9. The display device of claim 6 , further comprising an adhesive film between the cover plate and the upper polarizer, wherein the adhesive film is provided on a portion except for the fixed protrusion in the cover plate.

10. A display device comprising:
a backlight unit;
a liquid crystal panel comprising a lower polarizer positioned on an upper surface of the backlight unit, an upper polarizer positioned on an upper surface of the lower polarizer, and a first substrate and a second substrate positioned between the lower polarizer and the upper polarizer;
a cover plate on an upper surface of the liquid crystal panel; and
an adhesive film between the cover plate and the upper polarizer,
wherein a camera hole passes through the backlight unit and up to the lower polarizer, an interference prevention hole is located at a position corresponding to the camera hole in the upper polarizer, and the camera hole is not in the first substrate and the second substrate,
wherein a transparent ink layer is disposed corresponding to the interference prevention hole on a lower surface of the cover plate,
wherein the adhesive film is sagged into the interference prevention hole and a volume of the transparent ink layer corresponds to the volume of the interference prevention hole.

11. The display device of claim 10 , wherein a black ink layer is located on the lower surface of the cover plate at a position corresponding to an edge of the camera hole.

12. The display device of claim 11 , wherein the transparent ink layer is located on the black ink layer.

Assignees

• Lg Display Co Ltd

Inventors

• Kim Geunuk
• Kim Wontae
• Cho Jinhyeok
• Cha Jongseok

Classifications

• H04M1/0266

  for a display module assembly · CPC title

• G02F1/1333 Primary

  Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence) · CPC title

• H04M1/0264

  for a camera module assembly · CPC title

• G02F1/133331

  Cover glasses · CPC title

• G02F2201/50

  Protective arrangements · CPC title