IP Library › Granted Patent US 10,453,432
Granted Patent B2
US 10,453,432 · App. 15/699,460 · Granted Oct 22, 2019

Display adjustment

Inventors: Hung Sheng Lin (San Jose, CA); Sun-Il Chang (San Jose, CA); Hyunwoo Nho (Stanford, CA); Jie Won Ryu (Sunnyvale, CA); Junhua Tan (Santa Clara, CA)
Assignee: Apple Inc.
G09G5/391G09G3/20G09G3/2096G09G5/373G09G5/393G09G2320/0233G09G2320/0242G09G2320/0252G09G2320/0285G09G2320/0295G09G2320/041G09G2320/043G09G2330/021
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Quick Facts
Patent No.
US 10,453,432
App. No.
15/699,460
Granted
Oct 22, 2019
Kind
B2
Abstract

An electronic device includes an electronic display, whereby the electronic display includes an active area that includes a pixel having a display behavior that varies with temperature. The electronic display also includes processing circuitry. The processing circuitry may, when in operation, generate image data to send to the pixel and adjust the image data to generate corrected image data based at least in part on a stored correction value for the pixel, wherein the stored correction value corresponds to an effect of temperature on the pixel.

Claims (51)

1. An electronic device comprising:

an electronic display comprising an active area comprising a pixel having a display behavior that varies with temperature; and

processing circuitry configured to:

receive image data to send to the pixel;

adjust the image data to generate corrected image data based at least in part on a stored correction value for the pixel, wherein the stored correction value corresponds to an effect of measured temperature on the pixel; and

adjust the corrected image data to generate additional corrected image data based at least in part on a second correction value, wherein the processing circuitry is configured to generate the second correction value by:

receiving an indication of a property of the pixel, wherein the property comprises a voltage or a current;

determining, using a correction curve associated with the pixel, a third correction value based at least in part on a difference between the indication of the property and a target indication of the property;

receiving a second indication of the property of the pixel;

updating the correction curve based at least in part on an offset between the first indication and the second indication to generate a panel curve associated with the pixel; and

generating the second correction value using the panel curve, wherein the second correction value comprises the third correction value and the offset.

2. The electronic device of claim 1 , wherein the processing circuitry is configured to transmit the additional corrected image data to the electronic display.

3. The electronic device of claim 2 , wherein the electronic display is configured to utilize the additional corrected image data to drive the pixel.

4. The electronic device of claim 1 , wherein processing circuitry is configured to generate the stored correction value.

5. The electronic device of claim 4 , wherein processing circuitry is configured to generate the stored correction value based on a sensed condition affecting the pixel.

6. The electronic device of claim 5 , wherein the electronic display is configured to sense the sensed condition affecting the pixel.

7. The electronic device of claim 6 , wherein the electronic display is configured to sense a temperature generated by a heat producing component of the electronic device as the sensed condition affecting the pixel.

8. The electronic device of claim 4 , wherein processing circuitry is configured to generate the stored correction value based upon a sensed condition affecting both the pixel and at least one additional pixel adjacent to the pixel.

9. The electronic device of claim 4 , wherein processing circuitry is configured to generate the stored correction value as a reduced resolution version of a generated correction value for the pixel.

10. The electronic device of claim 9 , wherein the processing circuitry is configured to scale the stored correction value to generate a scaled correction value.

11. The electronic device of claim 10 , wherein the processing circuitry is configured to convert the scaled correction value to generate compensation driving data.

12. The electronic device of claim 11 , wherein the processing circuitry is configured to convert the scaled correction value via interpolation of the scaled correction value.

13. The electronic device of claim 11 , wherein the processing circuitry is configured to convert the scaled correction value via extrapolation of the scaled correction value.

14. The electronic device of claim 11 , wherein the processing circuitry is configured to adjust the image data to generate corrected image data by applying the compensation driving data to the image data.

15. An electronic device comprising:

processing circuitry configured to:

receive a signal representative of a condition affecting a pixel of the electronic device at a first time;

generate a correction value based on the signal;

alter a resolution of the correction value to generate a reduced size correction value;

store the reduced size correction value in a storage device;

receive an indication of a property of the pixel, wherein the property comprises a voltage or a current;

determine, using a correction curve associated with the pixel, a correction value based at least in part on a difference between the indication of the property and a target indication of the property;

receive a second indication of the property of the pixel;

update the correction curve based at least in part on an offset between the first indication and the second indication to generate a panel curve associated with the pixel; and

generate a second correction value using the panel curve, wherein the second correction value comprises the correction value and the offset.

16. The electronic device of claim 15 , wherein the processing circuitry is configured to receive an input value representative of a condition affecting the pixel of the electronic device at a second time.

17. The electronic device of claim 16 , wherein the processing circuitry is configured to update the reduced size correction value based on the input value.

18. An electronic device comprising:

an electronic display comprising an active area comprising a pixel; and

processing circuitry configured to:

receive an indication of a property of the pixel, wherein the property comprises a voltage or a current;

determine, using a correction curve associated with the pixel, a correction value based at least in part on a difference between the indication of the property and a target indication of the property;

receive a second indication of the property of the pixel;

update the correction curve based at least in part on an offset between the first indication and the second indication to generate a panel curve associated with the pixel;

generate a second correction value using the panel curve, wherein the second correction value comprises the correction value and the offset; and

apply the second correction value to image data transmitted to the pixel.

19. The electronic device of claim 18 , wherein the processing circuitry is configured to:

receive a third indication of the property of the pixel;

update the panel curve based at least in part on an additional offset between the second indication and the third indication to generate an adapted panel curve associated with the pixel; and

generate a third correction value using the adapted panel curve, wherein the third correction value comprises the second correction value and the additional offset.

20. The electronic device of claim 18 , wherein the processing circuitry is configured to update the correction curve to generate the panel curve associated with the pixel upon startup of the electronic device.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2017
From: LIN, HUNG SHENG; CHANG, SUN-IL; NHO, HYUNWOO; RYU, JIE WON; TAN, JUNHUA
To: APPLE INC.
Reel/Frame 043548/0420 →
Continuity (2)
Provisional Application 62399371 · Sep 24, 2016
Related Publication 20180090109A1 · Mar 29, 2018
Cited By (1)
US 12,236,850