TRANSPARENT DISPLAY ASSEMBLY AND DISPLAY DEVICE

• US 20170200424A1
• Filed: 01/08/2016
• Published: 07/13/2017
• Est. Priority Date: 08/28/2015
• Status: Abandoned Application

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Huang, Lei, Xu, Kai
• Application Number:
  US15/322,871
• Publication Number:
  US 20170200424A1
• Time in Patent Office: Days
• CPC Class Codes: G09G 2300/046 with an emissive area and a light-modulating area combined in one pixel
• CPC Class Codes: G09G 2320/066 for control of contrast
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: G09G 3/3225 using an active matrix
• CPC Class Codes: G09G 3/3607 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127
• CPC Class Codes: G09G 3/38 using electrochromic devices
• CPC Class Codes: H10K 2102/3031 Two-side emission, e.g. transparent OLEDs [TOLED]
• CPC Class Codes: H10K 59/50 OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements

Abstract

Embodiments of the present disclosure provide a transparent display assembly, including a transparent display panel which has a light emitting face for displaying an image and a back face opposite to the light emitting face. The transparent display assembly further includes a light adjustment structure arranged on a side of the back face of the transparent display panel; in a display mode, the light adjustment structure blocks an background light and prevents the background light from entering the transparent display panel through the light adjustment structure; in a non-display mode, the light adjustment structure allows the background light to enter the transparent display panel through the light adjustment structure.

Claims

1. A transparent display assembly, comprising:

a transparent display panel having a light emitting face for displaying an image and a back face opposite to the light emitting face, and

a light adjustment structure arranged on a side of the back face of the transparent display panel;

wherein in a display mode, the light adjustment structure prevents background light from entering the transparent display panel through the light adjustment structure; and

in a non-display mode, the light adjustment structure allows the background light to enter the transparent display panel through the light adjustment structure.

2. The transparent display assembly according to claim 1,

wherein the light adjustment structure comprises a transparent cover plate arranged on the side of the back face of the transparent display panel and a light adjustment material layer between the transparent cover plate and the back face of the transparent display panel, and

wherein in the display mode, controlled by a first electrical signal, the light adjustment material layer prevents the background light from entering the transparent display panel through the light adjustment structure;

and

in the non-display mode, controlled by a second electrical signal, the light adjustment material layer allows the background light to enter the transparent display panel through the light adjustment structure.

3. The transparent display assembly according to claim 2,

wherein the light adjustment structure further comprises a first electrode as least formed on a part of the back face of the transparent display panel and a second electrode opposite to the first electrode, the light adjustment material layer being provided between the first and second electrodes, and the second electrode being formed on a surface of the transparent cover plate facing the first electrode.

4. The transparent display assembly according to claim 2,

wherein the light adjustment structure further comprises:

another transparent cover plate arranged on the back face of the transparent display panel and opposite to the transparent cover plate;

a first electrode at least formed on a part of a surface of the another transparent cover plate facing the light adjustment material layer; and

a second electrode opposite to the first electrode, the light adjustment material layer is provided between the first and second electrodes, and the second electrode is formed on a surface of the transparent cover plate facing the light adjustment material layer.

5. The transparent display assembly according to claim 3,

wherein at least one of the first and second electrodes comprises a mesh electrode.

6. The transparent display assembly according to claim 5,

wherein the light adjustment structure further comprises a transparent conductive material layer covering at least one of the first and second electrodes.

7. The transparent display assembly according to claim 3,

wherein at least one of the first and second electrodes comprise a plate electrode made of a transparent conductive material.

8. The transparent display assembly according to claim 2,

wherein the light adjustment structure further comprises a sealing frame provided between the transparent cover plate and the back face of the transparent display panel, so as to form a sealed space surrounding the light adjustment material layer and between the transparent cover plate and the back face of the transparent display panel.

9. The transparent display assembly according to claim 8,

wherein the sealed space comprises a plurality of compartments which are separated by the sealing frame so as to accommodate the light adjustment material.

10. The transparent display assembly according to claim 2,

wherein the light adjustment structure further comprises a plurality of first and second strip electrodes formed on a same surface facing the light adjustment material layer, the plurality of first strip electrodes and the plurality of second stripe electrodes being alternately arranged in a linear array and being adapted to be applied with different electrical signals to form an edge electric field between a first and second strip electrodes which are adjacent to each other.

11. The transparent display assembly according to claim 1,

wherein the transparent display panel comprises a transparent OLED display panel having an array substrate and an OLED unit and the light adjustment structure is provided on a side of the array substrate facing away from the OLED unit.

12. The transparent display assembly according to claim 2,

wherein the transparent cover plate comprises a flexible substrate, and/or the transparent display panel comprises a flexible substrate.

13. The transparent display assembly according to claim 2,

wherein the light adjustment material layer is a liquid crystal layer and the light adjustment structure further comprises a polarizing layer disposed on each side of the liquid crystal layer;

or

the light adjustment material layer is an electrochromic material layer.

14. A display device, comprising a transparent display assembly according to claim 1.

15. The transparent display assembly according to claim 4,

wherein at least one of the first and second electrodes comprises a mesh electrode.

16. The transparent display assembly according to claim 15,

wherein the light adjustment structure further comprises a transparent conductive material layer covering at least one of the first and second electrodes.

17. The transparent display assembly according to claim 4,

wherein at least one of the first and second electrodes comprises a plate electrode made of a transparent conductive material.

18. The transparent display assembly according to claim 4,

wherein the light adjustment structure further comprises a sealing frame provided between the transparent cover plate and the another transparent cover plate, so as to form a sealed space surrounding the light adjustment material layer and between the transparent cover plate and the another transparent cover plate.

19. The transparent display assembly according to claim 18,

wherein the sealed space comprises a plurality of compartments which are separated by the sealing frame so as to accommodate the light adjustment material.