Display device and method for fabricating the same

Patent metadata

Field	Value
Publication number	US-11800753-B2
Application number	US-202117240263-A
Country	US
Kind code	B2
Filing date	Apr 26, 2021
Priority date	Feb 12, 2018
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

A display device capable of improving reliability (e.g., impact resistance) of a display panel having a through-hole, and a method of manufacturing a display device are provided. A display device includes: a camera module including a lens; a display panel including a through-hole overlapping the camera module on a plane; a window glass on the display panel; and a filling member in the through-hole and opposing each of the camera module and the window glass. A refractive index difference between an end portion of the filling member and the lens is about 0.7 or less, and a refractive index difference between another end portion of the filling member and the window glass is about 0.5 or less.

First claim

What is claimed is:

1. A display device comprising:
a camera module comprising at least one lens;
a display panel comprising a through-hole;
a window glass on the display panel; and
a filling member in the through-hole and opposing the window glass,
wherein the through-hole overlaps the camera module,
the filling member opposes the camera module,
a refractive index difference between an end portion of the filling member and a lens of the at least one lens is about 0.7 or less, and
a refractive index difference between another end portion of the filling member and the window glass is about 0.5 or less, and
wherein the display panel comprises:
a substrate; and
a pixel circuit unit on the substrate and comprising a first hole,
the substrate comprises: a first layer comprising a depression corresponding to the first hole; and a second layer between the first layer and the pixel circuit unit and comprising a second hole defined between the depression and the first hole, and
the depression has a width larger than a width of the second hole.

2. The display device of claim 1 , wherein the filling member has a refractive index in a range from about 1.2 to about 2.0.

3. The display device of claim 1 , wherein the filling member comprises an organic material.

4. The display device of claim 1 , wherein the filling member comprises a first inorganic material, an organic material, and a second inorganic material which are sequentially stacked,
the first inorganic material opposes the camera module, and
the second inorganic material opposes the window glass.

5. The display device of claim 1 , wherein the filling member contacts the lens of the camera module.

6. The display device of claim 1 , wherein the display panel further comprises:
a common electrode on the pixel circuit unit;
a sealing unit on the common electrode; and
a polarizing plate on the sealing unit, and
the through-hole is located corresponding to the first hole, the second hole, and the depression, and passes through the substrate, the common electrode, the sealing unit, and the polarizing plate.

7. The display device of claim 6 , further comprising: an adhesive unit between the display panel and the window glass,
wherein the through-hole passes through the adhesive unit.

8. The display device of claim 6 , wherein the depression has a width gradually widening along a direction from the first layer toward the second layer.

9. A display device comprising:
a camera module comprising at least one lens;
a display panel comprising a through-hole;
a window glass on the display panel; and
a filling member in the through-hole and opposing the window glass,
wherein the through-hole overlaps the camera module,
the filling member contacts a lens of the at least one lens, and
the filling member has a refractive index between a refractive index of the window glass and a refractive index of the lens.

10. The display device of claim 9 , wherein the refractive index of the filling member is in a range from about 1.2 to about 2.0.

11. The display device of claim 9 , wherein the filling member comprises an organic material.

12. The display device of claim 11 , wherein a refractive index difference between an end portion of the filling member and the lens is about 0.7 or less, and a refractive index difference between another end portion of the filling member and the window glass is about 0.5 or less.

13. The display device of claim 9 , wherein the filling member comprises a first inorganic material, an organic material, and a second inorganic material which are sequentially stacked,
the first inorganic material opposes the camera module, and
the second inorganic material opposes the window glass.

14. The display device of claim 13 , wherein a refractive index difference between the first inorganic material and the lens is about 0.7 or less, and a refractive index difference between the second inorganic material and the window glass is about 0.5 or less.

15. The display device of claim 9 , wherein the display panel comprises:
a substrate;
a pixel circuit unit on the substrate and comprising a first hole;
a common electrode on the pixel circuit unit;
a sealing unit on the common electrode; and
a polarizing plate on the sealing unit,
the substrate comprises: a first layer comprising a depression corresponding to the first hole; and a second layer between the first layer and the pixel circuit unit and comprising a second hole defined between the depression and the first hole,
the depression has a width larger than a width of the second hole, and
the through-hole is located corresponding to the first hole, the second hole, and the depression, and passes through the substrate, the common electrode, the sealing unit, and the polarizing plate.

16. The display device of claim 15 , further comprising: an adhesive unit between the display panel and the window glass,
wherein the through-hole passes through the adhesive unit.

17. The display device of claim 15 , wherein the depression has a width gradually widening along a direction from the first layer toward the second layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Sung Wooyong
• Kim Sooyoun
• Kim Seunghun
• Seo Junghan
• Yoon Seungho
• Lee Hyoungsub
• Chang Moonwon

Classifications

• H10K59/122 Primary

  Pixel-defining structures or layers, e.g. banks · CPC title

• G02B5/3025 Primary

  Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state (G02B5/3008, G02B5/3016 take precedence) · CPC title

• H10K59/123

  Connection of the pixel electrodes to the thin film transistors [TFT] · CPC title

• H10K59/1315

  comprising structures specially adapted for lowering the resistance · CPC title

• H10K59/1213 Primary

  the pixel elements being TFTs · CPC title