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Pressure-sensitive touch screen, driving method thereof, and color film substrate

A driving method and touch screen technology, which are applied in the fields of instruments, computing, electrical and digital data processing, etc., can solve the problems of low pressure sensing accuracy, high cost and assembly tolerance of the pressure-sensitive touch screen.

Active Publication Date: 2019-02-12
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, to realize the pressure-sensitive touch function, it is necessary to add an additional mechanism for sensing pressure in the backlight module of the touch screen or in the middle frame of the touch screen. The structural design of the touch screen is changed, resulting in a higher cost of the pressure-sensitive touch screen; moreover, the addition of additional mechanisms will cause assembly tolerance problems, resulting in lower accuracy of the pressure-sensitive touch screen

Method used

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  • Pressure-sensitive touch screen, driving method thereof, and color film substrate
  • Pressure-sensitive touch screen, driving method thereof, and color film substrate
  • Pressure-sensitive touch screen, driving method thereof, and color film substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] see Figure 1 ~ Figure 3 , the present embodiment provides a pressure-sensitive touch screen 100, the pressure-sensitive touch screen 100 includes: a first base substrate 11, a second base substrate 21, a plurality of block-shaped pressure-sensitive electrodes 16, at least one semiconductor electrode 15. An insulating layer 14, at least one metal electrode 13 and a plurality of block-shaped common electrodes 22. Wherein, the pressure sensitive electrode 16 , the semiconductor electrode 15 , the insulating layer 14 and the metal electrode 13 are disposed on the first base substrate 11 ; the common electrode 22 is disposed on the second base substrate 21 .

[0034] On the first base substrate 11, the arrangement of each film layer is as follows: the semiconductor electrode 15 is arranged on one side of the film layer where the pressure-sensitive electrode 16 is located (hereinafter referred to as the pressure-sensitive electrode layer), and the semiconductor electrode 15 ...

Embodiment 2

[0059] This embodiment provides a driving method for a pressure-sensitive touch screen, and the driving method is used to drive the pressure-sensitive touch screen 100 described in Embodiment 1. see Figure 9 , Figure 9 The curve corresponding to T-force in the middle represents the change of the voltage signal on the metal electrode 13 with time, the curve corresponding to TX represents the change of the voltage signal on the common electrode 22 with time, and the curve corresponding to Data represents the change in the pressure-sensitive touch screen 100. The voltage signal at the input end of the drive switch tube used to drive the pixel electrode varies with time, and the curve corresponding to Gate represents the change with time of the voltage signal at the control terminal of the drive switch tube used to drive the pixel electrode in the piezo-sensitive touch screen 100 , combined with figure 1 The driving method provided in this embodiment includes (the time of one ...

Embodiment 3

[0066] See Figure 1 ~ Figure 2 , Figure 4 ~ Figure 8 , this embodiment provides a color filter substrate, the color filter substrate includes a first base substrate 11, a color filter layer (not shown in the figure) disposed on the first base substrate 11, a black matrix 12, A plurality of block-shaped pressure-sensitive electrodes 16 , at least one semiconductor electrode 15 , an insulating layer 14 and at least one metal electrode 13 . Wherein, the semiconductor electrode 15 is arranged on one side of the pressure-sensitive electrode layer, and the semiconductor electrode 15 is connected between two adjacent pressure-sensitive electrodes 16; the insulating layer 14 is arranged on the side of the semiconductor electrode layer away from the pressure-sensitive electrode layer; The electrodes 13 are disposed on the side of the insulating layer 14 away from the pressure-sensitive electrode layer, the metal electrodes 13 correspond to the semiconductor electrodes 15 one by one,...

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Abstract

The invention provides a pressure sensing type touch screen, a driving method thereof and a color film substrate, and relates to the technical field of display. The pressure sensing type touch screen is used for solving the problem that an existing pressure sensing type touch screen is high in cost, low in pressure sensing accuracy. The pressure sensing type touch screen comprises a first substrate, a second substrate opposite to the first substrate, a plurality of blocky pressure sensing electrodes, at least one semiconductor electrode, an insulation layer, at least one metal electrode and a plurality of blocky common electrodes arranged on the second substrate, wherein the pressure sensing electrodes, the semiconductor electrode, the insulation layer and the metal electrode are arranged on the first substrate. The semiconductor electrodes are arranged on one side of the pressure sensing electrode layer and connected between two adjacent pressure sensing electrodes. The insulation layer is arranged on the side, away from the pressure sensing electrode layer, of the semiconductor electrode layer. The metal electrodes are arranged on the side, away from the pressure sensing electrode layer, of the insulation layer. The metal electrodes correspond to the semiconductor electrodes one to one. The metal electrodes and the corresponding semiconductor electrodes are oppositely arranged. The pressure sensing type touch screen is used for display, touch and pressure sensing touch.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pressure-sensitive touch screen, a driving method thereof, and a color filter substrate. Background technique [0002] Force Touch (Force Touch) technology is a new technology that has received widespread attention in the field at present, and is called "a great revolution after multi-touch". A touch screen integrated with pressure-sensitive touch technology is called a pressure-sensitive touch screen. The pressure-sensitive touch screen can not only recognize each touch of the user, but also sense the force of the touch, and give different feedbacks according to the force of the touch. For example: when a user looks at a photo, the system of the mobile phone will automatically enlarge the picture according to the pressure of the user's finger on the screen. The greater the pressure, the greater the magnification of the picture. [0003] At present, the realization of the pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
CPCG06F3/0414G06F3/0416
Inventor 刘英明董学王海生陈小川丁小梁赵卫杰杨盛际邓立广朱麾忠
Owner BOE TECH GRP CO LTD