Display Device, Light Converting Device And Display System

• US 20170094757A1
• Filed: 06/22/2016
• Published: 03/30/2017
• Est. Priority Date: 09/28/2015
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectric Technology Co. Ltd. (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectric Technology Co. Ltd. (BOE Technology Group Co., Ltd.)
• Inventors: Gan, Quan, Guo, Lei, Wang, Yongcan, Yoon, Yong Jun
• Granted Patent: US 10,013,925 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2358/00 Arrangements for display data security
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336

Abstract

A display device, a light converting device and a display system are provided. The display device includes a light-emitting module configured to emit at least two non-visible lights, non-visible lights of different types having different wavelengths; and a control module configured to control the light-emitting module to alternately emit the at least two non-visible lights at a wavelength adjusted timing, and to send a synchronous signal to a light converting device, the synchronous signal being configured to reflect the wavelength adjusted timing.

Claims

1. A display device, comprising

a light-emitting module configured to emit at least two non-visible lights, non-visible lights of different types among which have different wavelengths;

and

a control module configured to control the light-emitting module to alternately emit the at least two non-visible lights at a wavelength adjusted timing, and to send a synchronous signal to a light converting device, the synchronous signal being configured to reflect the wavelength adjusted timing.

2. The display device according to claim 1, wherein the light-emitting module comprises at least two non-visible light sources, non-visible lights that can be emitted from the non-visible light sources of different types having different wavelengths;

wherein the control module is configured to control the at least two non-visible light sources to emit light alternately at a wavelength adjusted timing.

3. The display device according to claim 2, wherein the light-emitting module comprises a first non-visible light source and a second non-visible light source;

wherein the control module is configured to control the first non-visible light source and the second non-visible light source to emit two non-visible lights alternately at a wavelength adjusted timing.

4. The display device according to claim 3, wherein the first non-visible light source is an infrared light source, and the second non-visible light source is an ultraviolet light source.

5. The display device according to claim 1, wherein the light-emitting module comprises:

a visible light source; and

a wavelength converting unit configured to convert a visible light emitted from the visible light source into a non-visible light;

wherein the control module is configured to control the wavelength converting unit to alternately convert the visible light into at least two non-visible lights at a wavelength adjusted timing.

6. The display device according to claim 5, wherein the wavelength converting unit is a nonlinear crystal or a semiconductor optical amplifier.

7. A light converting device, comprising:

a first receiving module configured to receive at least two non-visible lights emitted alternately by a display device;

a second receiving module configured to receive a synchronous signal sent by the display device, the synchronous signal being configured to reflect a wavelength adjusted timing of the display device; and

a control module configured to synchronously convert, based on the synchronous signal, the at least two non-visible lights into visible lights at the wavelength adjusted timing and to output the visible lights.

8. The device according to claim 7, wherein the control module comprises:

a first control unit configured to transmit, based on the synchronous signal, a non-visible light received at the current time in the wavelength adjusted timing to a wavelength converting unit by an input optical path corresponding to the non-visible light;

non-visible lights of different types corresponding to different input optical paths; and

at least two wavelength converting units, each of which is configured to convert one non-visible light into a visible light.

9. The device according to claim 8, wherein the control module further comprises:

a second control unit, configured to output, based on the synchronous signal, the visible light emitted from the wavelength converting unit by an output optical path corresponding to the visible light, visible lights obtained by converting non-visible lights of different types corresponding to different output optical paths.

10. The device according to claim 8, wherein the first control unit comprises:

a first selecting sub-unit configured to transmit, based on the synchronous signal, a non-visible light received at the current time in the wavelength adjusted timing to a first optical path altering sub-unit, the first optical path altering sub-unit being configured to receive a non-visible light emitted from the first selecting sub-unit and to transmit the non-visible light to a wavelength converting unit.

11. The device according to claim 10, wherein each of the first selecting sub-unit and the first optical path altering sub-unit is a mirror.

12. The device according to claim 9, wherein the second control unit comprises:

a second optical path altering sub-unit configured to output a visible light emitted from the wavelength converting unit to a second selecting sub-unit; and

a second selecting sub-unit configured to output, based on the synchronous signal, a visible light emitted from the second optical path altering sub-unit.

13. The device according to claim 12, wherein each of the second selecting sub-unit and the second optical path altering sub-unit is a mirror.

14. The device according to claim 7, wherein the light converting device is a pair of glasses.

15. A display system, comprising a display device and a light converting device;

wherein the display device includes a light-emitting module configured to emit at least two non-visible lights, non-visible lights of different types having different wavelengths; and

a control module configured to control the light-emitting module to alternately emit the at least two non-visible lights at a wavelength adjusted timing, and to send a synchronous signal to the light converting device, the synchronous signal being configured to reflect the wavelength adjusted timing; and

wherein the light converting device includes a first receiving module configured to receive at least two non-visible lights emitted alternately by a display device;

a second receiving module configured to receive a synchronous signal sent by the display device, the synchronous signal being configured to reflect a wavelength adjusted timing of the display device; and

a control module configured to synchronously convert, based on the synchronous signal, the at least two non-visible lights into visible lights at the wavelength adjusted timing, and to output the visible lights.

16. The display device according to claim 15, wherein the light-emitting module comprises at least two non-visible light sources, non-visible lights that can be emitted from the non-visible light sources of different types having different wavelengths;

wherein the control module is configured to control the at least two non-visible light sources to emit light alternately at a wavelength adjusted timing.

17. The display device according to claim 16, wherein the light-emitting module comprises a first non-visible light source and a second non-visible light source;

wherein the control module is configured to control the first non-visible light source and the second non-visible light source to emit two non-visible lights alternately at a wavelength adjusted timing.

18. The display device according to claim 15, wherein the light-emitting module comprises:

a visible light source; and

a wavelength converting unit configured to convert a visible light emitted from the visible light source into a non-visible light;

wherein the control module is configured to control the wavelength converting unit to alternately convert the visible light into at least two non-visible lights at a wavelength adjusted timing.

19. The display device according to claim 15, wherein the control module comprises:

a first control unit configured to transmit, based on the synchronous signal, a non-visible light received at the current time in the wavelength adjusted timing to a wavelength converting unit by an input optical path corresponding to the non-visible light;

non-visible lights of different types corresponding to different input optical paths; and

at least two wavelength converting units, each of which being configured to convert one non-visible light into a visible light.

20. The display device according to claim 19, wherein the control module further comprises:

a second control unit configured to output, based on the synchronous signal, the visible light emitted from the wavelength converting unit by an output optical path corresponding to the visible light, visible lights that is obtained by converting non-visible lights of different types corresponding to different output optical paths.