Display device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-9482885-B2
Application number	US-201514682350-A
Country	US
Kind code	B2
Filing date	Apr 9, 2015
Priority date	Dec 9, 2014
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

A display device, including a display panel displaying an image; a cover receiving the display panel therein; and a protective layer between the display panel and the cover and including a chromic material.

First claim

What is claimed is:

1. A display device, comprising:
a display panel displaying an image;
a bottom cover receiving the display panel therein; and
a protective layer between the display panel and the cover and including a chromic material, the chromic material being a photochromic material that is discolored in response to light being applied thereto, a thermochromic material that is discolored at a temperature within a predetermined temperature range, or an electrochromic material that is discolored in response to a current with a predetermined level being applied thereto.

2. The display device as claimed in claim 1 , wherein the chromic material is a photochromic material that is discolored in response to light being applied thereto.

3. A display device, comprising:
a display panel displaying an image;
a bottom cover receiving the display panel therein; and
a protective layer between the display panel and the cover, the protective layer including a latent pigment.

4. The display device as claimed in claim 3 , wherein the latent pigment includes a phase change material and a polymer surrounding the phase change material.

5. The display device as claimed in claim 1 , further comprising a protective sheet between the protective layer and the bottom cover.

6. The display device as claimed in claim 5 , wherein the protective sheet does not include a light-shielding sheet.

7. The display device as claimed in claim 1 , wherein:
the display panel includes a first substrate and a second substrate, the second substrate being on a first surface of the first substrate, and
the protective layer covers an entire second surface of the first substrate.

8. The display device as claimed in claim 1 , wherein the chromic material is a thermochromic material that is discolored at a temperature within a predetermined temperature range.

9. The display device as claimed in claim 1 , wherein the chromic material is an electrochromic material that is discolored in response to a current with a predetermined level being applied thereto.

10. The display device as claimed in claim 1 , wherein the protective layer is formed by screen printing.

11. A method of manufacturing a display device, the method comprising:
preparing a display device including a first substrate and a second substrate, the second substrate being on a first surface of the first substrate;
forming a protective layer on a second surface of the first substrate;
forming an integrated circuit (IC) chip on the first surface of the first substrate;
coupling the second substrate and a cover window together; and
discoloring the protective layer.

12. The method as claimed in claim 11 , wherein the display device further includes a polarizing member, which is on the second substrate.

13. The method as claimed in claim 11 , wherein the protective layer includes:
a latent pigment, which has a phase change material, and
a polymer surrounding the phase change material.

14. The method as claimed in claim 11 , further comprising placing a protective sheet on a surface of the protective layer opposite to a surface of the protective layer contacting the display device.

15. The method as claimed in claim 11 , wherein:
the IC chip is in a mounting area of the first substrate where the first substrate is not bonded to the second substrate, and
forming the IC chip includes forming a flexible printed circuit board (FPCB), which transmits a driving signal to the IC chip, in the mounting area.

16. The method as claimed in claim 11 , further comprising, before discoloring the protective layer, determining, from the second surface of the first substrate, whether the IC chip has been properly mounted.

17. The method as claimed in claim 11 , wherein the protective layer includes a photochromic material that is discolored in response to light being applied thereto.

18. The method as claimed in claim 17 , wherein:
coupling the second substrate and the cover window together includes applying ultraviolet (UV) light to an adhesive layer, which is interposed between the second substrate and the cover window, and
discoloring the protective layer includes applying the UV light to the protective layer.

19. The method as claimed in claim 11 , wherein:
forming the protective layer includes curing the protective layer at a temperature within a first temperature range,
the protective layer includes a thermochromic material that is discolored at a temperature within a second temperature range, which is higher than the first temperature range, and
discoloring the protective layer includes heating the protective layer to the temperature within the second temperature range.

20. The method as claimed in claim 11 , wherein:
the protective layer includes an electrochromic material that is discolored in response to a current with a predetermined level being applied thereto, and
discoloring the protective layer includes applying the current with the predetermined level to the protective layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Joo So Yeon
• Kim Su Kyoung
• Hwang Hyeon Deuk

Classifications

• H04M1/0266

  for a display module assembly · CPC title

• G02F2001/1536

  additional, e.g. protective, layer inside the cell · CPC title

• G02F2201/086

  UV absorbing · CPC title

• G02F1/0147

  based on thermo-optic effects (G02F1/132 takes precedence) · CPC title

• G02F1/1533

  structural features not otherwise provided for · CPC title