Display panel assembly and electronic equipment including the same

Patent metadata

Field	Value
Publication number	US-9268068-B2
Application number	US-201313777898-A
Country	US
Kind code	B2
Filing date	Feb 26, 2013
Priority date	Sep 13, 2012
Publication date	Feb 23, 2016
Grant date	Feb 23, 2016

Abstract

A display panel assembly and an electronic device including the assembly are disclosed. In one aspect, the assembly includes a window cover including a display area and a non-display area and a display panel disposed on a location of a rear surface of the window cover corresponding to the display area. The assembly further includes a dielectric mirror layer disposed on a location of the rear surface of the window cover corresponding to the non-display area which selectively reflects light incident through the window cover to provide a metallic color sense to a user and a light absorbing layer absorbing light transmitted through the dielectric mirror layer.

First claim

What is claimed is:

1. A display panel assembly comprising:
a window cover including a display area and a non-display area, wherein the window cover comprises first and second surfaces opposing each other, and wherein the display area and non-display area are disposed on the first surface;
a display panel disposed on a location of the second surface of the window cover corresponding to the display area;
a dielectric mirror layer disposed on a location of the second surface of the window cover corresponding to the non-display area and configured to selectively reflect light incident through the window cover; and
a light absorbing layer configured to at least partially absorb light transmitting through the dielectric mirror layer,
wherein the display panel assembly further comprises a transparent molding layer located between the second surface of the window cover and the dielectric mirror layer, and wherein the transparent molding layer is located in the non-display area surrounding the display area corresponding to a plurality of pixels configured to display an image.

2. The display panel assembly of claim 1 , wherein the dielectric mirror layer is formed of alternating layers of high-refractive-index layers and low-refractive-index layers.

3. The display panel assembly of claim 1 , wherein the dielectric mirror layer comprises:
a first dielectric layer located on the second surface of the window cover;
a second dielectric layer located on the first dielectric layer; and
a third dielectric layer located on the second dielectric layer.

4. The display panel assembly of claim 3 , wherein the thicknesses of the first, second, and third dielectric layers are different from one another.

5. The display panel assembly of claim 3 , wherein the refractive indexes of the first and third dielectric layers are less than the refractive index of the second dielectric layer.

6. The display panel assembly of claim 3 , wherein the refractive indexes of the first and third dielectric layers are greater than the refractive index of the second dielectric layer.

7. The display panel assembly of claim 1 , wherein the light absorbing layer is a black printing layer.

8. The display panel assembly of claim 1 , wherein the dielectric mirror layer comprises:
a first dielectric layer formed of titanium dioxide (TiO 2 ); and
a second dielectric layer formed of silicon dioxide (SiO 2 ).

9. The display panel assembly of claim 1 , wherein the dielectric mirror layer comprises an uneven surface.

10. The display panel assembly of claim 1 , wherein a surface of the molding layer facing the dielectric mirror layer is at least partially uneven.

11. The display panel assembly of claim 1 , wherein the dielectric mirror layer directly contacts the transparent molding layer.

12. The display panel assembly of claim 11 , wherein a surface of the transparent molding layer facing the dielectric mirror layer is at least partially uneven, and wherein the dielectric mirror layer comprises a bumpy surface formed in correspondence to the bumpy surface of the transparent molding layer.

13. A display panel assembly comprising:
a window cover comprising a display area and a non-display area surrounding the display area, wherein the window cover comprises first and second surfaces opposing each other, and wherein the display area and non-display area are disposed on the first surface;
an organic light emitting display panel disposed at a location of the second surface of the window cover corresponding to the display area;
a dielectric mirror layer disposed on a location of the second surface of the window cover corresponding to the non-display area, wherein the dielectric mirror layer comprises a plurality of dielectric layers, and wherein the dielectric mirror layer is configured to selectively reflect light that corresponds to a wavelength satisfying conditions of constructive interference from light incident through the window cover; and
a light absorbing layer disposed on the dielectric mirror layer and configured to at least partially absorb light transmitting through the dielectric mirror layer,
wherein the display panel assembly further comprises a transparent molding layer located between the second surface of the window cover and the dielectric mirror layer, and wherein the transparent molding layer is located in the non-display area surrounding the display area corresponding to a plurality of pixels configured to display an image.

14. The display panel assembly of claim 13 , further comprising a first dielectric layer and a second dielectric layer, wherein one of the first and second dielectric layers is a relatively high-refractive-index layer and the other is a low-refractive-index layer.

15. The display panel assembly of claim 13 , wherein the dielectric mirror layer comprises:
a first dielectric layer formed of TiO 2 ; and
a second dielectric layer formed of SiO 2 .

16. The display panel assembly of claim 13 , wherein a surface of the molding layer facing the dielectric mirror layer is at least partially uneven.

17. The display panel assembly of claim 13 , wherein the dielectric mirror layer directly contacts the transparent molding layer.

18. An electronic device comprising:
a housing having at least one open surface; and
a display panel assembly disposed as to cover the open surface of the housing,
wherein the display panel assembly comprises:
a window cover including a display area and a non-display area, wherein the window cover comprises first and second surfaces opposing each other, and wherein the display area and non-display area are disposed on the first surface;
a display panel disposed on a location of the second surface of the window cover corresponding to the display area;
a dielectric mirror layer disposed on a location of the second surface of the window cover corresponding to the non-display area and configured to selectively reflect light incident through the window cover; and
a light absorbing layer configured to at least partially absorb light transmitting through the dielectric mirror layer,
wherein the electronic device further comprises a transparent molding layer located between the second surface of the window cover and the dielectric mirror layer, and wherein the transparent molding layer is located in the non-display area surrounding the display area corresponding to a plurality of pixels configured to display an image.

19. The device of claim 18 , wherein the dielectric mirror layer comprises alternately stacked dielectric layers of high refractive indexes and dielectric layers of low refractive indexes.

20. The device of claim 18 , wherein the dielectric mirror layer comprises:
a first dielectric layer located on the second surface of the window cover;
a second dielectric layer located on the first dielectric layer; and
a third dielectric layer located on the second dielectric layer,
wherein the refractive indexes of the first and third dielectric layers are different from the refractive index of the second dielectric layer.

21. The device of claim 18 , wherein the light absorbing layer is a black printing layer.

22. The electronic device of claim 18 , wherein the dielectric mirror layer directly contacts the transparent molding layer.

23. An electronic device comprising:
a housing having at least one open surface; and
a display panel assembly disposed as to cover the open surface of the housing,
wherein the display panel assemb

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Hyun-Hee

Classifications

• G02B5/0825 Primary

  the reflecting layers comprising dielectric materials only · CPC title

• G02B5/003

  Light absorbing elements · CPC title

• G02B5/286 Primary

  having four or fewer layers, e.g. for achieving a colour effect · CPC title

• G09F9/00 Primary

  Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00) · CPC title