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Display driving device for supplying auxiliary signal to panel

An auxiliary signal, display-driven technology, applied in static indicators, input/output processes of data processing, instruments, etc., can solve problems such as changes, differences, and inability to eliminate parasitic capacitance, to improve sensitivity, prevent touch or approach. The effect of misidentification

Pending Publication Date: 2022-05-06
LX SEMICON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the delay may vary depending on the length of the line the auxiliary signal travels through, the distortion of the auxiliary signal applied to the surrounding electrodes may be different from each other
For this reason, even when the same auxiliary signal as the touch drive signal is supplied to the panel, the auxiliary signal reaching the pixel will have a different phase or amplitude, so it may not be possible to cancel the parasitic capacitance

Method used

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  • Display driving device for supplying auxiliary signal to panel
  • Display driving device for supplying auxiliary signal to panel
  • Display driving device for supplying auxiliary signal to panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] figure 1 is a configuration diagram of a display device according to an embodiment.

[0023] refer to figure 1 , the display device 100 may include a panel 110 , a data driving circuit 120 , a gate driving circuit 130 and a touch sensing circuit 140 .

[0024] The panel 110 may include a plurality of data lines DL connected to the data driving circuit 120 and a plurality of gate lines GL connected to the gate driving circuit 130 . In addition, the panel 110 may further include a plurality of pixels P corresponding to intersections of the plurality of data lines DL and the plurality of gate lines GL.

[0025] Each pixel P may include a transistor in which a first electrode (for example, a source electrode or a drain electrode) is connected to a data line DL, a gate electrode is connected to a gate line GL, and a second electrode (for example, a drain electrode or a source electrode) electrodes) are connected to the display electrodes.

[0026] The panel 110 may furth...

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PUM

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Abstract

The invention provides a display driving device for supplying an auxiliary signal to a panel. The present invention relates to a technique for supplying an auxiliary signal to a panel, which allows the effect of eliminating parasitic capacitance to be maximized by correcting the auxiliary signal so that the characteristics of the auxiliary signal coincide with the characteristics of a touch driving signal.

Description

technical field [0001] The present invention relates to techniques for supplying auxiliary signals to eliminate parasitic capacitance in panels. Background technique [0002] The screen of the electronic device may be a screen for displaying images and receiving inputs. In order for a screen of an electronic device to receive an input, a touch sensing technology for sensing a touch or approach of an external object is used. A touch panel inside such an electronic device is arranged at the same position as a display panel in plan view, and this allows a user to input a user operation signal into the touch panel while the user views an image on the display panel. Compared with other previous user operation signal input methods such as mouse input method or keyboard input method, this method of generating user operation signal is very intuitive for the user. [0003] Recently, an in-cell (in-cell) structure in which a touch sensor included in a touch panel is embedded in a pi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044G06F3/045
CPCG06F3/0412G06F3/041662G06F3/0445G06F3/045G06F3/04184G06F3/04166G06F3/044G06F3/0418G09G2370/04
Inventor 全灿镐元东民姜镐珍
Owner LX SEMICON CO LTD