DISPLAY DEVICE

• US 20170277219A1
• Filed: 09/12/2016
• Published: 09/28/2017
• Est. Priority Date: 03/24/2016
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: CHUNG, Yun-Mo, KONG, Byung-Ik, KIM, Byoung-Ki, YOON, Ho-Jin, LEE, Dae-Woo, CHOI, Jae-Beom
• Granted Patent: US 10,163,990 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 1/1637 Details related to the display arrangement, including those related to the mounting of the display in the housing
• CPC Class Codes: H04N 23/57 Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
• CPC Class Codes: H10K 50/865 comprising light absorbing layers, e.g. light-blocking layers
• CPC Class Codes: H10K 50/87 Arrangements for heating or cooling
• CPC Class Codes: H10K 59/1201 Manufacture or treatment
• CPC Class Codes: H10K 59/121 characterised by the geometry or disposition of pixel elements
• CPC Class Codes: H10K 59/65 OLEDs integrated with inorganic image sensors
• CPC Class Codes: H10K 59/8792 comprising light absorbing layers, e.g. black layers

Abstract

A display device includes a display panel, a camera module, and a heat sink plate. The display panel displays an image on a front surface, and includes a first substrate, a sub-pixel structure, and a reflection pattern. The display panel includes a plurality of pixel regions each having sub-pixel regions, a transparent region, and a reflection region surrounding the sub-pixel regions and the transparent region. The sub-pixel structure is disposed in the sub-pixel region. The second substrate is disposed on the sub-pixel structure. The reflection pattern is disposed on the second substrate, but not on the sub-pixel region and the transparent region. The camera module is disposed in a second surface on the display panel, and the second surface is opposite to the first surface. The heat sink plate is disposed between the display panel and the camera module, and has an opening that is aligned with the camera module.

Claims

1. A display device, comprising:

a display panel displaying an image on a front surface, the display panel including a plurality of pixel regions each having a sub-pixel region, a transparent region, and a reflection region surrounding the sub-pixel regions and the transparent region and having;

a first substrate;

a sub-pixel structure in the sub-pixel region on the first substrate;

a second substrate on the sub-pixel structure; and

a reflection pattern on the second substrate, the reflection pattern including openings in the sub-pixel region and the transparent region;

a camera module on a back surface on the display panel, the second surface being opposite to the first surface; and

a heat sink plate between the display panel and the camera module, the heat sink plate having an opening that is aligned with the camera module.

2. The display device of claim 1, wherein the display panel further includes:

a transflective reflection pattern on the second substrate.

3. The display device of claim 2, wherein a thickness of the transflective reflection pattern is less than a thickness of the reflection pattern, and a light transmissivity of the transflective reflection pattern is greater than a light transmissivity of the reflection pattern.

4. The display device of claim 2, wherein the reflection pattern and the transflective reflection pattern are disposed between the second substrate and the sub-pixel structure, and the reflection pattern is interposed between the second substrate and the transflective reflection pattern.

5. The display device of claim 2, wherein the reflection pattern and the transflective reflection pattern is disposed between the second substrate and the sub-pixel structure, and the transflective reflection pattern is interposed between the second substrate and the reflection pattern.

6. The display device of claim 2, wherein the reflection pattern and the transflective reflection pattern are disposed on the back side of the second substrate, and the reflection pattern is interposed between the second substrate and the transflective reflection pattern.

7. The display device of claim 2, wherein the reflection pattern and the transflective reflection pattern are disposed on the back side of the second substrate, and the transflective reflection pattern is interposed between the second substrate and the reflection pattern.

8. The display device of claim 1, wherein the second surface of the display panel includes a center region and a peripheral region surrounding the center region, and

wherein the camera module is positioned in the center region or the peripheral region.

9. The display device of claim 8, wherein the camera module is positioned in the center region.

10. The display device of claim 1, wherein the camera module obtains an image of an object that is located in front of the first surface of the display panel via the opening of the heat sink plate and the transparent region of the display panel.

11. The display device of claim 1, wherein the camera module and the opening of the heat sink plate have a circular cross-section.

12. The display device of claim 1, wherein a diameter of the camera module is the same as a diameter of the opening of the heat sink plate.

13. The display device of claim 1, further comprising:

a body surrounding the display panel, the heat sink plate, and the camera module.

14. The display device of claim 13, wherein the body holds the camera module on the display panel.

15. The display device of claim 14, wherein the body has a protrusion portion in a portion surrounding the camera module.

16. The display device of claim 1, wherein the heat sink plate further includes a plurality of openings.

17. The display device of claim 16, wherein the openings are spaced apart from each other, and are regularly arranged.

18. The display device of claim 16, further comprising:

a plurality of camera modules positioned in the respective openings.

19. The display device of claim 18, further comprising:

a body surrounding the display panel, the heat sink plate, and the camera modules,

wherein the body fixes the camera modules to the display panel, and has a plurality of protrusion portions in a portion surrounding each of the camera modules.

20. The display device of claim 16, further comprising:

a moving member coupled to the camera, the moving member being configured to move the camera module on the back surface on the display panel.

21. The display device of claim 20, wherein the moving member moves the camera module such that the camera module is positioned in one of the openings in the heat sink plate.

22. The display device of claim 20, further comprising:

a body surrounding the display panel, the heat sink plate, the camera module, and the moving member.

23. The display device of claim 1, wherein the sub-pixel structure includes:

a semiconductor element on the first substrate;

a lower electrode on the semiconductor element;

a light emitting layer on the lower electrode; and

an upper electrode on the light emitting layer.

24. The display device of claim 23, wherein the upper electrode does not cover the transparent region.

25. The display device of claim 23, wherein the semiconductor element includes:

an active layer on the first substrate, the active layer including source and drain regions;

a gate electrode on the active layer;

a source electrode on the gate electrode, the source electrode being in contact with the source region of the active layer; and

a drain electrode spaced apart from the source electrode, the drain electrode being in contact with the drain region of the active layer.

26. The display device of claim 25, wherein the semiconductor element further includes:

a gate insulation layer on the first substrate, the gate insulation layer covering the active layer in the sub-pixel region but not the transparent region;

an insulating interlayer on the gate insulation layer, the insulating interlayer covering the gate electrode in the sub-pixel region while being absent from the transparent region; and

a planarization layer on the insulating interlayer, the planarization layer covering the source and drain electrodes in the sub-pixel region, the planarization layer not covering the transparent region.

27. The display device of claim 26, wherein the gate insulation layer, the insulating interlayer, and the planarization layer do not cover a portion of the first substrate in the transparent region to form a transparent window in the transparent region.

28. The display device of claim 25, wherein the semiconductor element further includes:

a gate insulation layer covering the active layer in the sub-pixel region, the gate insulation layer in the sub-pixel region and the transparent region on the first substrate;

an insulating interlayer covering the gate electrode in the sub-pixel region, the insulating interlayer in the sub-pixel region and the transparent region on the gate insulation layer; and

a planarization layer on the insulating interlayer, the planarization layer covering the source and drain electrodes in the sub-pixel region, the planarization layer exposing the insulating interlayer in the transparent region.

29. The display device of claim 25, wherein the semiconductor element further includes:

a gate insulation layer covering the active layer in the sub-pixel region, the gate insulation layer in the sub-pixel region and the transparent region on the first substrate;

an insulating interlayer covering the gate electrode in the sub-pixel region, the insulating interlayer in the sub-pixel region and the transparent region on the gate insulation layer; and

a planarization layer covering the source and drain electrodes in the sub-pixel region, the planarization layer in the sub-pixel region and the transparent region on the insulating interlayer.

30. The display device of claim 1, wherein the heat sink plate further comprises:

a tab including a first portion that is connected to the heat sink plate and a second portion spaced apart from the heat sink plate, the tab having a circular shape.

31. The display device of claim 1, wherein at least a portion of the camera module is positioned in the opening of the heat sink plate.

32. A display device comprising:

a display panel including a sub-pixel region, a transparent region, and a reflection region; and

a camera module coupled to a back side of the display panel and aligned with the transparent region to capture an image of an object in front of the display panel.

33. The display device of claim 32 further comprising:

a heat sink positioned between the display panel and the camera module, the heat sink having an opening that is aligned with the transparent region and the camera module; and

an adhesive member between the display panel and the heat sink.

34. The display device of claim 32 further comprising a transflective reflection pattern covering an entire surface of the display panel.

35. A display device comprising:

a display panel having a plurality of pixel regions, each of the pixel regions including a sub-pixel region, a reflection region, and a transparent region;

a camera module coupled to a back side of the display panel; and

a moving member coupled to the camera module to move the camera module into different pixel regions and align the camera module with the transparent region of a selected pixel region.

36. The display device of claim 35 further comprising a heat sink plate disposed between the display panel and the camera module, the heat sink plate having a plurality of openings that are aligned with transparent regions of the pixel regions, such that the camera module can capture an image of an object in front of the display panel from more than one pixel regions of the display panel.