Patent · US Active

Active sensing and compensation for display panel hysteresis

US10825385B2 · kind B2 · utility

1Cited by

0References

26Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Chaohao Wang · Sunnyvale, US
Chih-Wei Yeh · Dashulong, TW
Chin-Wei Lin · Tainan, TW
Hung Sheng Lin · San Jose, US
Hyunwoo Nho · Palo Alto, US
Injae Hwang · Tokyo, JP
Jie Won Ryu · Santa Clara, US
Junhua Tan · Saratoga, US
Paolo Sacchetto · Cupertino, US
Rui Zhang · Santa Clara, US
Shengkui Gao · Shoreline, US
Sun-Il Chang · San Jose, US
Wei H. Yao · Palo Alto, US
Howard H. Tang · San Jose, US

Key dates

Filing date	Sep 11, 2017
Grant date	Nov 3, 2020
Priority date	—
Expiry date	Dec 13, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG09G2360/18
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An apparatus receives current image frame data and data relating to at least one previous image frame for an electronic display. One or more parameters related to hysteresis of transistors in the electronic display are sensed. A correlation device, such as a look-up table, receives the sensed parameter or parameters and the data relating to one or more image frames, and uses this information, at least in part, to output an appropriate compensation signal for the current image frame data. The compensated current image frame data may then be supplied to the electronic display to reduce or eliminate the effects of hysteresis on the displayed image.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.