THERMAL MANAGEMENT OF DISPLAY SCREENS

• US 20170242291A1
• Filed: 02/24/2016
• Published: 08/24/2017
• Est. Priority Date: 02/24/2016
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Rakshit, Sarbajit K.
• Granted Patent: US 10,009,570 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 1/16 Constructional details or arrangements
• CPC Class Codes: G06F 1/206 comprising thermal management
• CPC Class Codes: G09G 2330/04 Display protection
• CPC Class Codes: G09G 2330/045 Protection against panel overheating
• CPC Class Codes: G09G 2360/16 Calculation or use of calculated indices related to luminance levels in display data
• CPC Class Codes: G09G 3/2092 Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336
• CPC Class Codes: G09G 3/36 using liquid crystals
• CPC Class Codes: H04N 5/64 Constructional details of receivers, e.g. cabinets or dust covers furniture aspects of television cabinets A47B81/06

Abstract

A computer-implemented method includes receiving a video frame. The computer-implemented method further includes dividing the video frame into two or more frame regions, each of the two or more frame regions corresponding to a selectively coolable region of a display. The computer-implemented method further includes identifying one or more frame characteristics for each of the two or more frame regions. The computer-implemented method further includes determining a cooling intensity to be applied to each selectively coolable region for displaying the video frame on the display based on the one or more frame characteristics. The computer-implemented method further includes applying the cooling intensity to each selectively coolable region at an effective time before displaying the video frame on the display. A corresponding computer system and computer program product are also disclosed.

Claims

1. A computer-implemented method comprising:

dividing a video frame into two or more frame regions, wherein;

each of said two or more frame regions correspond to a selectively coolable region of a display;

said selectively coolable region of said display includes a plurality of light emitting diodes; and

a plurality of microfluidic circuits surround said plurality of light emitting diodes;

identifying one or more frame characteristics for each of said two or more frame regions;

determining a cooling intensity to be applied to each said selectively coolable region of said display based on said one or more frame characteristics; and

proactively altering a volume and a flow rate of a coolant through said plurality of microfluidic circuits based, at least in part, on said cooling intensity for each said selectively coolable region at an effective time, wherein said effective time is prior to an appearance of said video frame on said display.

3. The computer-implemented method of claim 1, wherein each of said one or more frame regions is assigned a heat value based on said one or more frame characteristics.

4. The computer-implemented method of claim 3, wherein:

said heat value is an estimation of the electrical input power of said one or more light emitting diodes for each selectively coolable region of said display.

5. The computer-implemented method of claim 4, wherein said heat value for each said selectively coolable region on said display is stored as video metadata.

6. The computer-implemented method of claim 5, wherein said cooling intensity is determined according to said heat value.

2. (canceled)

7. A computer program product, the computer program product comprising one or more computer readable storage devices, wherein the one or more computer readable storage devices are not transitory signals per se, and program instructions stored on said one or more computer readable storage devices, said program instructions comprising instructions to:

divide, by one or more processors, a video frame into two or more frame regions, wherein;

each of said two or more frame regions correspond to a selectively coolable region of a display;

said selectively coolable region of said display includes a plurality of light emitting diodes; and

a plurality of microfluidic circuits surround said plurality of light emitting diodes;

identify, by one or more processors, one or more frame characteristics for each of said two or more frame regions;

determine, by one or more processors, a cooling intensity to be applied to each said selectively coolable region of said display based on said one or more frame characteristics; and

proactively alter, by one or more processors, a volume and a flow rate of a coolant through said plurality of microfluidic circuits based, at least in part, on said cooling intensity for each said selectively coolable region at an effective time, wherein said effect time is prior to an appearance of said video frame on said display.

9. The computer program product of claim 7, wherein each of said one or more frame regions is assigned a heat value based on said one or more frame characteristics.

10. The computer program product of claim 9, wherein:

said heat value is an estimation of the electrical input power of said one or more light emitting diodes for each selectively coolable region of said display.

11. The computer program product of claim 10, wherein said heat value for each said selectively coolable region on said display is stored as video metadata.

12. The computer program of claim 11, wherein said cooling intensity is determined according to said heat value.

8. (canceled)

13. A computer system, the computer system comprising:

one or more computer processors;

one or more computer readable storage devices, wherein the one or more computer readable storage devices are not transitory signals per se;

computer program instructions;

said computer program instructions being stored on said one or more computer readable storage devices;

said computer program instructions comprising instructions to;

divide, by one or more processors, a video frame into two or more frame regions, wherein;

each of said two or more frame regions correspond to a selectively coolable region of a display;

said selectively coolable region of said display includes a plurality of light emitting diodes; and

a plurality of microfluidic circuits surround said plurality of light emitting diodes;

identify, by one or more processors, one or more frame characteristics for each of said two or more frame regions;

determine, by one or more processors, a cooling intensity to be applied to each said selectively coolable region of said display based on said one or more frame characteristics; and

proactively alter, by one or more processors, a volume and a flow rate of a coolant through said plurality of microfluidic circuits based, at least in part, on said cooling intensity for each said selectively coolable region at an effective time, wherein said effect time is prior to an appearance of said video frame on said display.

15. The computer system of claim 13, wherein each of said one or more frame regions is assigned a heat value based on said one or more frame characteristics.

16. The computer system of claim 15, wherein:

said heat value is an estimation of the electrical input power of said one or more light emitting diodes for each selectively coolable region of said display.

17. The computer program product of claim 16, wherein said heat value for each said selectively coolable region on said display is stored as video metadata.

18. The computer program of claim 17, wherein said cooling intensity is determined according to said heat value.

14. (canceled)