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Touch screen and displaying device

A touch screen and touch electrode technology, which is applied in the direction of instruments, semiconductor devices, computing, etc., can solve the problems of detection accuracy limitation, large assembly tolerance, etc., achieve good detection accuracy, reduce production cost, and reduce the limitation of assembly tolerance Effect

Inactive Publication Date: 2017-10-03
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the way to achieve pressure sensing in the field of display, especially in the field of mobile phones or tablets, is to add an additional structure to the backlight part of the LCD panel or the middle frame of the mobile phone. This design requires structural design of the LCD panel or mobile phone. changes, and the probing accuracy of this design is limited due to large assembly tolerances

Method used

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  • Touch screen and displaying device
  • Touch screen and displaying device
  • Touch screen and displaying device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The driving touch electrode Tx unit 10 and the pressure sensing unit electrode 13 form a capacitive structure. When the touch screen is pressed, the capacitance between the Tx unit 10 and the pressure-sensing unit electrode 13 changes, so that the pressure-sensing detection unit can detect the magnitude and position of the pressure by detecting the change in capacitance between the two.

Embodiment 2

[0040] The sensing touch electrode Rx unit 11 and the pressure sensing unit electrode 13 form a capacitive structure. When the touch screen is pressed, the capacitance between the Rx unit 11 and the pressure-sensing unit electrode 13 changes, so that the pressure-sensing detection unit can detect the magnitude and position of the pressure by detecting the change in capacitance between the two.

Embodiment 3

[0042] The common electrode 12 and the pressure-sensitive unit electrode 13 form a capacitive structure. When the touch screen is pressed, the capacitance between the common electrode 12 and the pressure-sensing unit electrode 13 changes, so that the pressure-sensing detection unit can detect the magnitude and position of the pressure by detecting the change in capacitance between the two.

[0043] In the above touch screen provided in the embodiment of the present application, between the lower substrate 23 and the upper substrate 200, a pressure sensing unit ( figure 1 not shown, Figure 2a , Figure 2b shown in), pixel unit 15, spacer 16; wherein,

[0044] The pressure sensing unit is used to receive the pressure sensing signal of the pressure sensing unit electrode 13 in the pressure sensing touch stage, and detect the touch electrode unit 100 (drive the touch electrode Tx unit 10 and / or sense the touch electrode Rx unit 11) and the pressure-sensitive unit electrode 13,...

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Abstract

The invention discloses a touch screen and a displaying device, and achieves to solve the problem that an existing pressing touch technology requires massive changes on a structural design of a displaying device, and limited by assembling tolerance, achievement of a better detecting precision is not benefited. By means of arranging a plurality of pressure unit electrodes on an inner side of a lower substrate and arranging a plurality of touch electrode units on a touch panel substrate, a capacitor structure is formed by the pressure unit electrodes and the touch electrode units or by the pressure unit electrodes and a common electrode. When one of the pressure unit electrode is pressed, a distance between the pressure unit electrode and the touch electrode units or between the pressure unit electrode and the common electrode changes, and capacitance between the pressure unit electrode and the touch electrode unit or between the pressure unit electrode and the common electrode is enabled to be changed, so that by increasing the amount of pressure detecting units, the level and the position of pressure can be detected through capacitance detection, and a pressure touch function can be realized.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a touch screen and a display device. Background technique [0002] Pressure sensing technology refers to the technology that can detect external force. This technology has been used in industrial control, medical and other fields a long time ago. At present, the way to achieve pressure sensing in the field of display, especially in the field of mobile phones or tablets, is to add an additional structure to the backlight part of the LCD panel or the middle frame of the mobile phone. This design requires structural design of the LCD panel or mobile phone. changes, and the probing accuracy of this design is limited due to large assembly tolerances. [0003] Therefore, how to realize pressure sensing with high detection accuracy with little modification to the terminal structure design is an urgent problem to be solved by those skilled in the art. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0414G06F3/0416G06F3/0412G06F2203/04105G06F3/0447G06F3/0445H01L29/78675H10K59/40H10K59/122H10K59/1213
Inventor 赵必玉张光均
Owner BOE TECH GRP CO LTD