Display device and driving method thereof

By using sensors and sensor drivers with synchronous or inverse sensing signals in the display device, the problems of gap and electromagnetic interference between the sensor unit and the display unit are solved, enabling accurate calculation of user touch position and reducing display distortion.

CN113936593BActive Publication Date: 2026-06-05SAMSUNG DISPLAY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SAMSUNG DISPLAY CO LTD
Filing Date
2021-07-14
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing display devices suffer from gaps and electromagnetic interference between sensor units and display units, and it is difficult to accurately calculate the user's touch position, resulting in display distortion.

Method used

The system employs a first sensor and a second sensor to receive synchronous or out-of-phase sensing signals in different sensing cycles, and provides sensing signals at specific time intervals through a sensor driver. Combined with the precise control of the scanning driver and the display driver, electromagnetic interference is reduced and the accuracy of touch position calculation is improved.

Benefits of technology

It effectively reduces the gap between the sensor unit and the display unit, reduces electromagnetic interference, improves the accuracy of user touch position calculation, and prevents display distortion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to a display apparatus and a driving method of a display apparatus. The display apparatus includes a plurality of pixels; a scan driver configured to supply a scan signal of an on level to a scan line at a period of a horizontal synchronization signal; a plurality of first sensors and a plurality of second sensors overlapping at least some of the pixels; and a sensor driver configured to supply a first sensing signal to the first sensors simultaneously during a first sensing period, supply a second sensing signal to the second sensors simultaneously during a second sensing period, and supply a third sensing signal to the first sensors sequentially during a third sensing period, wherein a number of the first sensing signals is an integer greater than 2, wherein the first sensing signals are divided into a first group, and wherein an initial first sensing signal in each of the first group is synchronized with the horizontal synchronization signal.
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