Pressure detection structure and touch device

A technology for detecting structures and touching equipment, applied in the direction of measuring force, measuring devices, instruments, etc., can solve problems affecting machine consistency, reducing product reliability, and large assembly tolerances, so as to improve test production efficiency and reduce tolerances Effect

Active Publication Date: 2016-03-30
SHENZHEN GOODIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the gap 5 is limited by many assembly processes and assembly parts in mass production, resulting in large assembly tolerances
At the same time, the tolerance of the distance between the display screen 2 and the pressure sensor 3 between different machines will affect the consistency between machines, resulting in differences in experience between machines
Moreover, the drop and extrusion deformation of the whole machine product are easier to change the size of this gap, which reduces the reliability of the product

Method used

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  • Pressure detection structure and touch device

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Embodiment Construction

[0047] In the present invention, the pressure sensor is arranged inside the display device, and any conductive member or the conductive middle frame in the display device is used as a reference electrode. There is a variable gap between the pressure sensor and the reference electrode, and the pressure sensor outputs a pressure signal according to the capacitance change between its sensing electrode and the reference electrode. Therefore, it is avoided that the tolerance of the distance between the display module and the middle frame affects the consistency of pressure sensing between the touch devices, and the tolerance of the complete assembly of the touch devices is reduced. Moreover, during the mass production test, a single display device can be subjected to a stress test, and it is not necessary to cooperate the display device with the middle frame to perform a stress test, which improves the test production efficiency.

[0048] Of course, implementing any technical solut...

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Abstract

The invention relates to a pressure detection structure and a touch device. The structure is mounted in a middle frame of the touch device, and comprises a cover board, a display device and a pressure sensor; the display device is positioned below the cover board; the display device comprises a display module; the pressure sensor is arranged inside the display device; a random conductive part in the display device or the conductive middle frame is used as a reference electrode; a variable gap exists between the pressure sensor and the reference electrode; and the pressure sensor, according to a capacitance change between a sensing electrode of the pressure sensor and the reference electrode, outputs a pressure signal. According to the pressure detection structure and the touch device, pressure detection can be accurately carried out, and reliability of a product is reinforced.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a pressure detection structure and a touch device. Background technique [0002] Current touch devices (such as touch mobile phones) usually use pressure sensors to detect the pressure of human hand touch. The pressure detection structure of the touch device is installed on the middle frame of the touch device, including a cover plate, a display device and a pressure sensor. When the display device is an LCD display device (that is, a display screen), the display module is a liquid crystal module, and the display device further includes an optical component and a housing carrying the liquid crystal module and the optical component. When the display device is an LED display device, the display module is an LED module, and the display device further includes a flexible foam layer for shading and buffering. [0003] Such as Figure 1.1 As shown, when the display device is an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0414G06F3/0412G06F2203/04107G06F3/0445G06F3/0447G01L1/146G01L1/205G06F1/1643
Inventor 文达飞刘武冉锐
Owner SHENZHEN GOODIX TECH CO LTD
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