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Display device with attached sensor, control device and control method

A display device and sensor technology, applied in the input/output process of instruments, static indicators, data processing, etc., can solve the problems of display noise, malfunction detection accuracy or display quality degradation, and achieve the effect of ensuring the driving period.

Active Publication Date: 2018-01-19
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the driving signal of the touch panel will also become the noise of the display
As mentioned above, due to mutual interference between the display and the touch panel, the respective SN (Signal Noise) ratios are lowered, resulting in malfunctions, lowering detection accuracy or display quality.

Method used

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  • Display device with attached sensor, control device and control method
  • Display device with attached sensor, control device and control method
  • Display device with attached sensor, control device and control method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0047] (Configuration example of a display device provided with a sensor)

[0048] figure 1 Yes, it is a block diagram showing an example of the configuration of the display device provided with the sensor according to the first embodiment. figure 1 The illustrated display device 1 including a sensor is an electronic device including a screen for displaying an image, and a sensor for detecting contact or approach of an object on the screen. The display device 1 including the sensor includes a display device 2 , a detection device 3 , and a system-side controller 10 .

[0049] (Configuration example of display device)

[0050] The display device 2 includes a plurality of gate lines G (G(1), G(2), . . . , G(n), . and data lines S (S(1), S(2), ..., S(i), ...S(M)). The gate line G is an example of a display scan line, and in the first direction ( figure 1 In the example of , the Y direction) is arranged. The data line S is in a second direction different from the first direc...

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PUM

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Abstract

Provided is a display device with an attached sensor, wherein mutual interference between driving for display and driving for detection of a target object is suppressed, while the respective drive periods are ensured. The display device with an attached sensor is provided with: a scan drive unit (4) which repeatedly performs scanning for selecting a plurality of display scan lines (G) sequentiallyin a first direction; and a data drive unit (5) which applies a voltage to a plurality of data lines (S). In addition, the display device with an attached sensor is provided with a detection controlunit (30) which repeatedly performs scanning for driving a plurality of detection scan lines (DRL) sequentially in the first direction, and detects a detection line (SNL) signal. During the time fromstart until finish of single screen scan of a detection scan line (G), a screen scan of display scan lines (DRL) is started, and the detection scan line (DRL) single-screen scan time is the same as orshorter than the display scan line (G) single screen scan time.

Description

technical field [0001] The disclosure of the present application relates to a sensor-equipped display device including a screen for displaying an image and a sensor for detecting contact or approach of an object on the screen. Background technique [0002] In recent years, sensor-equipped display devices including a display having a screen on which an image is displayed and a touch panel for detecting that an object such as a finger or a pen has come into contact with or approached the screen have been commercialized. In the display device provided with the sensor, the drive signal of the display becomes noise and can affect the touch panel. In addition, the drive signal of the touch panel also becomes noise of the display. As described above, since the display and the touch panel interfere with each other, the respective SN (Signal Noise) ratios are lowered, resulting in malfunctions, and the detection accuracy and display quality are lowered. [0003] In order to suppres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044G09G3/20G09G3/36
CPCG09G3/20G09G3/3648G09G2310/0202G06F3/04184G06F3/0445G09G3/025G09G3/2018
Inventor 真弓昌史冈田厚志
Owner SHARP KK