IP Library › Granted Patent US 11,164,515
Granted Patent B2
US 11,164,515 · App. 16/603,188 · Granted Nov 2, 2021

Sensing considering image

Inventors: Hung Sheng Lin (San Jose, CA); Hyunwoo Nho (Palo Alto, CA); Sun-Il Chang (San Jose, CA); Junhua Tan (Saratoga, CA); Jie Won Ryu (Santa Clara, CA); Shengkui Gao (San Jose, CA); Rui Zhang (Sunnyvale, CA); Injae Hwang (Cupertino, CA); Kingsuk Brahma (Mountain View, CA); Jesse Aaron Richmond (San Francisco, CA); Shiping Shen (Cupertino, CA); Hyunsoo Kim (Mountain View, CA)
Assignee: APPLE INC.
G09G3/3225G09G3/3216G09G2320/029G09G2320/0233G09G2320/0285G09G2320/0295G09G2320/043
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Quick Facts
Patent No.
US 11,164,515
App. No.
16/603,188
Granted
Nov 2, 2021
Kind
B2
Abstract

An electronic device comprises an electronic display having an active area having a pixel. The electronic device also comprises processing circuitry configured to receive 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. The processing circuitry also is configured to generate a test data to send to the pixel subsequent to sending corrected image data to the pixel, wherein the test data is selected based upon a comparison of at least one aspect of the corrected image data with a threshold value.

Claims (38)

1. An electronic device comprising:

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

generate test data to send to the pixel subsequent to sending corrected image data to the pixel, wherein the test data is selected based upon a comparison of a gray level of the corrected image data with a threshold value to account for hysteresis caused by the corrected image data; and

update the stored correction value based on a sensed condition affecting the pixel in response to the test data being sent to the pixel.

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

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

4. The electronic device of claim 1 , wherein the electronic display is configured to sense the condition affecting the pixel in response to the test data being sent to the pixel.

5. The electronic device of claim 1 , wherein the processing circuitry is configured to transmit a first value as the test data when the least one aspect of the corrected image data is at or above the threshold value.

6. The electronic device of claim 5 , wherein the processing circuitry is configured to transmit a second value as the test data when the least one aspect of the corrected image data is below the threshold value.

7. The electronic device of claim 1 , 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.

8. The electronic device of claim 1 , wherein the stored correction value is stored in a correction map configured to store multiple stored correction values.

9. The electronic device of claim 8 , wherein the processing circuitry is configured to update the correction map.

10. An electronic device comprising:

processing circuitry configured to:

generate test data to send to a pixel of the electronic device, wherein the test data is selected based upon a comparison of a gray level of corrected image data to be transmitted to the pixel with a threshold value to account for hysteresis caused by the corrected image data.

11. The electronic device of claim 10 , wherein the processing circuitry is configured to set the threshold value to an initial predetermined value.

12. The electronic device of claim 11 , wherein the processing circuitry is configured to receive or generate the initial predetermined value during an initial configuration of the electronic device.

13. The electronic device of claim 11 , wherein the processing circuitry is configured to receive or generate the initial predetermined value during a startup of the electronic device.

14. The electronic device of claim 11 , wherein the processing circuitry is configured to generate the initial predetermined value to correspond to a lowest gray level or desired gray level available for the pixel that meets or exceeds a sensing reliability level.

15. The electronic device of claim 11 , wherein the processing circuitry is configured to generate the initial predetermined value to correspond to value above a lowest gray level or desired gray level available for the pixel that meets or exceeds a sensing reliability level.

16. The electronic device of claim 10 , wherein the processing circuitry is configured to transmit a first value as the test data when the gray level of the corrected image data is at or above the threshold value, wherein the processing circuitry is configured to transmit a second value as the test data when the gray level of the corrected image data is below the threshold value.

17. The electronic device of claim 10 , wherein the processing circuitry is configured to generate the corrected image data based upon a stored correction value calculated for the pixel.

18. The electronic device of claim 17 , wherein the processing circuitry is configured to alter the stored correction value based on a sensed response of the pixel to the test data.

19. An electronic device comprising:

an electronic display comprising an active area comprising a first pixel and a second pixel directly adjacent to the first pixel; and

processing circuitry configured to:

receive first image data to send to the first pixel;

receive second image data to send to the second pixel;

adjust the first image data to generate first corrected image data based at least in part on a first stored correction value for the first pixel;

adjust the second image data to generate second corrected image data based at least in part on a second stored correction value for the second pixel;

generate first test data to send to the first pixel subsequent to sending the first corrected image data to the pixel, wherein the first test data is selected based upon a comparison of a gray level of the first corrected image data with a threshold value to account for hysteresis caused by the corrected image data;

generate second test data to send to the second pixel subsequent to sending the second corrected image data to the pixel, wherein the second test data is selected based upon a comparison of the gray level of the second corrected image data with the threshold value;

update the first stored correction value based on a sensed condition affecting the first pixel in response to the test data being sent to the first pixel; and

update the second stored correction value based on a sensed condition affecting the second pixel in response to the test data being sent to the second pixel.

20. The electronic device of claim 19 , wherein the processing circuitry is configured transmit identical data as the first test data and the second test data when the gray level of the first corrected image data is less than the threshold value and the gray level of the second corrected image data is less than the threshold value, wherein the processing circuitry is configured transmit differing data as the first test data and the second test data when the gray level of the first corrected image data is greater than the threshold value and the gray level of the second corrected image data is greater than the threshold value.

Continuity (3)
Continuation 15697221 · Sep 6, 2017
Provisional Application 62483237 · Apr 7, 2017
Related Publication 20200118486A1 · Apr 16, 2020