3D DISPLAY APPARATUS AND METHOD FOR DRIVING THE 3D DISPLAY APPARATUS

• US 20180107008A1
• Filed: 05/11/2016
• Published: 04/19/2018
• Est. Priority Date: 02/16/2016
• Status: Active Grant

• Current Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Original Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Inventors: Lu, Pengcheng, Chen, Xiaochuan, Yang, Ming, Zhao, Wenqing, Wang, Lei, Wang, Qian, Xu, Rui, Gao, Jian, Niu, Xiaochen, Wang, Haisheng, Yang, Shengji, Li, Chengfeng
• Granted Patent: US 10,613,344 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02B 30/31 involving active parallax barriers involving directional light or back-light sources G02B30/33
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: H04N 13/32 using arrays of controllable light sources; using moving apertures or moving light sources
• CPC Class Codes: H04N 13/366 using viewer tracking
• CPC Class Codes: H04N 13/376 for tracking left-right translational head movements, i.e. lateral movements
• CPC Class Codes: H10K 59/00 Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
• CPC Class Codes: H10K 59/50 OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
• CPC Class Codes: H10K 59/84 Parallel electrical configurations of multiple OLEDs

Abstract

Embodiments of the present application provide a 3D display apparatus and a method for driving the same. The apparatus includes: a backlight assembly forming bright stripes and dark stripes arranged alternately; a liquid crystal display panel displaying a left eye image of a 3D display signal by a first set of pixel units and display a right eye image by a second set of pixel units; a location tracking unit acquiring a location of a viewer; and a control unit adjusting position of the bright and dark stripes and deflection of liquid crystal of the liquid crystal display panel such that a light emitted from the bright stripes is allowed to pass through corresponding first set to be received by left eye and to pass through corresponding second set to be received by right eye respectively. Embodiments are used in manufacturing of a 3D display apparatus.

Claims

1. A 3D display apparatus comprising:

a backlight assembly, which comprises a plurality of light emitting units arranged in array to form a plurality of bright stripes and dark stripes arranged alternately by lighting part of the plurality of light emitting units, each of the bright stripes and dark stripes being formed by at least one column of light emitting units;

a liquid crystal display panel located at a light exit side of the backlight assembly, the liquid crystal display panel comprising a plurality of pixel units arranged in array to receive a 3D display signal and display a left eye image of the 3D display signal by a first set of the pixel units and display a right eye image of the 3D display signal by a second set of the pixel units, wherein the first set of the pixel units and the second set of the pixel units are arranged alternately and each comprises at least one column of the pixel units;

a location tracking unit configured to acquire a location of a viewer; and

a control unit configured to adjust positions of the bright stripes and dark stripes formed by the backlight assembly and deflection of liquid crystal of the liquid crystal display panel on the basis of the location of the viewer such that light emitted from the bright stripes is allowed to pass through corresponding first set of the pixel units to be received by left eye of the viewer and light emitted from the bright stripes is allowed to pass through corresponding second set of the pixel units to be received by right eye of the viewer.

2. The 3D display apparatus according to claim 1, wherein each of the dark stripes between adjacent bright stripes and the bright stripes between adjacent dark stripes comprises N columns of the light emitting units, where N is a positive integer greater than 1.

3. The 3D display apparatus according to claim 1, wherein the light emitting units of the backlight assembly are configured to produce white light and the liquid crystal display panel comprises a color filter layer which comprises a red color filter, a green color filter and a blue color filter;

or

the light emitting units of the backlight assembly are configured to produce red light, green light and blue light.

4. The 3D display apparatus according to claim 1, wherein the light emitting units of the backlight assembly are formed of an OLED light emitting assembly.

5. The 3D display apparatus according to claim 4, wherein the OLED light emitting assembly comprises a first transparent substrate and a second transparent substrate as well as respective light emitting units arranged in parallel between the first transparent substrate and the second transparent substrate, and wherein each of the light emitting units comprises a cathode, an anode and an organic electroluminescent portion between the cathode and the anode.

6. The 3D display apparatus according to claim 5, wherein within the OLED light emitting assembly,

the anode of each of the light emitting units is separated from that of any other one of the light emitting units and the cathode of each of the light emitting units is separated from that of any other one of the light emitting units;

or

the anode of each of the light emitting units is separated from that of any other one of the light emitting units and the cathodes of the light emitting units are electrically connected with each other;

or

the cathode of each of the light emitting units is separated from that of any other one of the light emitting units and the anodes of the light emitting units are electrically connected with each other.

7. The 3D display apparatus according to claim 4, wherein the OLED light emitting assembly comprises:

a first light emitting module forming odd columns of light emitting units of the backlight assembly; and

a second light emitting module forming even columns of light emitting units of the backlight assembly.

8. The 3D display apparatus according to claim 7, wherein the OLED light emitting assembly further comprises:

a first transparent substrate, a second transparent substrate and an insulation layer located between the first transparent substrate and the second transparent substrate, the first light emitting module being located between the first transparent substrate and the insulation layer, the second light emitting module being located between the insulation layer and the second transparent substrate, and

wherein the first light emitting module comprises a first cathode layer, a first organic electroluminescent layer and a first anode layer arranged sequentially between the first transparent substrate and the insulation layer; and

the second light emitting module comprises a second cathode layer, a second organic electroluminescent layer and a second anode layer arranged sequentially between the insulation layer and the second transparent substrate.

9. The 3D display apparatus according to claim 8, wherein each of the light emitting units comprises a cathode, an anode and an organic electroluminescent portion located between the cathode and the anode, and the cathode, the organic electroluminescent portion and the anode of each light emitting unit in the odd columns of light emitting units of the backlight assembly are formed by the first cathode layer, the first organic electroluminescent layer and the first anode layer respectively;

and the cathode, the organic electroluminescent portion and the anode of each light emitting unit in the even columns of light emitting units of the backlight assembly are formed by the second cathode layer, the second organic electroluminescent layer and the second anode layer respectively,

wherein in a same one of the first light emitting module and the second light emitting module, the anode of each of the light emitting units is separated from that of any other one of the light emitting units and the cathode of each of the light emitting units is separated from that of any other one of the light emitting units;

or

wherein in a same one of the first light emitting module and the second light emitting module, the anode of each of the light emitting units is separated from that of any other one of the light emitting units and the cathodes of the light emitting units are electrically connected with each other;

or

wherein in a same one of the first light emitting module and the second light emitting module, the cathode of each of the light emitting units is separated from that of any other one of the light emitting units and the anodes of the light emitting units are electrically connected with each other.

10. The 3D display apparatus according to claim 4, wherein the OLED light emitting assembly comprises:

a first light emitting module forming (3n)^th columns of light emitting units of the backlight assembly;

a second light emitting module forming (3n-1)^th columns of light emitting units of the backlight assembly; and

a third light emitting module forming (3n-2)^th columns of light emitting units of the backlight assembly,

wherein n is a positive integer.

11. The 3D display apparatus according to claim 10, wherein the OLED light emitting assembly further comprises:

a first transparent substrate, a second transparent substrate, and a first insulation layer and a second insulation layer located between the first transparent substrate and the second transparent substrate, the first light emitting module being located between the first transparent substrate and the first insulation layer, the second light emitting module being located between the first insulation layer and the second insulation layer, the third light emitting module being located between the second insulation layer and the second transparent substrate, and

wherein the first light emitting module comprises a first cathode layer, a first organic electroluminescent layer and a first anode layer arranged sequentially between the first transparent substrate and the first insulation layer, and the second light emitting module comprises a second cathode layer, a second organic electroluminescent layer and a second anode layer arranged sequentially between the first insulation layer and the second insulation layer, and the third light emitting module comprises a third cathode layer, a third organic electroluminescent layer and a third anode layer arranged sequentially between the second insulation layer and the second transparent substrate.

12. The 3D display apparatus according to claim 11, wherein each of the light emitting units comprises a cathode, an anode and an organic electroluminescent portion located between the cathode and the anode, the cathode, the organic electroluminescent portion and the anode of each light emitting unit in the (3n)^th columns of light emitting units of the backlight assembly are formed by the first cathode layer, the first organic electroluminescent layer and the first anode layer respectively, the cathode, the organic electroluminescent portion and the anode of each light emitting unit in the (3n-1)^th columns of light emitting units of the backlight assembly are formed by the second cathode layer, the second organic electroluminescent layer and the second anode layer respectively, and the cathode, the organic electroluminescent portion and the anode of each light emitting unit in the (3n-2)^th columns of light emitting units of the backlight assembly are formed by the third cathode layer, the third organic electroluminescent layer and the third anode layer respectively;

wherein in a same one of the first light emitting module, the second light emitting module and the third light emitting module, the anode of each of the light emitting units is separated from that of any other one of the light emitting units and the cathode of each of the light emitting units is separated from that of any other one of the light emitting units;

or

wherein in a same one of the first light emitting module, the second light emitting module and the third light emitting module, the anode of each of the light emitting units is separated from that of any other one of the light emitting units and the cathodes of the light emitting units are electrically connected with each other;

or

wherein in a same one of the first light emitting module, the second light emitting module and the third light emitting module, the cathode of each of the light emitting units is separated from that of any other one of the light emitting units and the anodes of the light emitting units are electrically connected with each other.

13. The 3D display apparatus according to claim 4, wherein the OLED light emitting assembly is a PMOLED light emitting assembly or an AMOLED light emitting assembly.

14. A method for driving the 3D display apparatus according to claim 1, the method comprising:

acquiring a location of a viewer;

adjusting positions of the bright stripes and dark stripes formed by the backlight assembly and deflection of liquid crystal of the liquid crystal display panel on the basis of the location of the viewer such that light emitted from the bright stripes is allowed to pass through corresponding first set of the pixel units to be received by the left eye of the viewer and light emitted from the bright stripes is allowed to pass through corresponding second set of the pixel units to be received by the right eye of the viewer.

15. The 3D display apparatus according to claim 5, wherein the OLED light emitting assembly is a PMOLED light emitting assembly or an AMOLED light emitting assembly.

16. The 3D display apparatus according to claim 6, wherein the OLED light emitting assembly is a PMOLED light emitting assembly or an AMOLED light emitting assembly.

17. The 3D display apparatus according to claim 7, wherein the OLED light emitting assembly is a PMOLED light emitting assembly or an AMOLED light emitting assembly.

18. The 3D display apparatus according to claim 8, wherein the OLED light emitting assembly is a PMOLED light emitting assembly or an AMOLED light emitting assembly.

19. The 3D display apparatus according to claim 9, wherein the OLED light emitting assembly is a PMOLED light emitting assembly or an AMOLED light emitting assembly.

20. The 3D display apparatus according to claim 10, wherein the OLED light emitting assembly is a PMOLED light emitting assembly or an AMOLED light emitting assembly.