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Method for implementing virtual keyboard by utilizing condenser type touch screen

A technology of capacitive touch screen and virtual keyboard, which is applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., to achieve the effect of avoiding false touch actions

Active Publication Date: 2010-12-29
SUZHOU PIXCIR MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the defects of the above-mentioned touch-type virtual keyboard, use the touch screen, touch chip and single-chip microcomputer to detect the coordinate information on the screen, and solve the misoperation caused by careless touch through the pressure recognition function

Method used

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  • Method for implementing virtual keyboard by utilizing condenser type touch screen
  • Method for implementing virtual keyboard by utilizing condenser type touch screen
  • Method for implementing virtual keyboard by utilizing condenser type touch screen

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Embodiment Construction

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] combine Image 6 , Figure 7 , take the capacitive multi-touch screen with indium tin oxide semiconductor transparent conductive film as an example to illustrate, the indium tin oxide panel 10 and the liquid crystal module 11 of the touch screen 1 are respectively connected to the coordinate information processing unit 13 and the liquid crystal driving module 12, The liquid crystal driving module 12 and the coordinate information processing unit 13 are connected to the host computer 2 through a communication interface and a connecting line.

[0028] The coordinate information processing unit 13 includes a touch chip 130 and a microprocessor 131 , the scan lines of the indium tin oxide panel 10 are connected to the scan line pins of the touch chip 130 , and the signal output end of the touch chip 130 is connected to the microprocessor MCU131 The s...

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Abstract

The invention relates to a method for realizing a virtual keyboard by using a capacitive touch screen. Whether a user strikes a virtual button is judged by detecting and judging the induction pressure of the touched virtual button by a touched object is greater than or equal to a preset induction pressure; if the induction pressure of the touched virtual button by a touched object is greater thanor equal to a preset induction pressure, corresponding strike confirmation command of the touched virtual button is sent to a host computer, and the control touch screen of the host computer displaysthe corresponding characters of the virtual button and / or carries out a key command. The method for realizing a virtual keyboard by using a capacitive touch screen provided by the invention can efficiently avoid error touch actions so that the real intention of the user is understood by identifying and judging the induction pressure of the touch screen by the touched object (finger, touch controlpen). Multi-point touch technology is used so that multiple points can be simultaneously identified and the combination operation of multiple buttons can be realized by using the virtual keyboard.

Description

technical field [0001] The invention relates to a method for applying a touch screen to a human-machine input system, in particular to a method for realizing a virtual keyboard by using a capacitive touch screen. Background technique [0002] Keyboard input is the most traditional and common input method at present. People use the combination of different keys on the keyboard for various input. However, in many cases of electronic products, in order to pursue portability and small size, coupled with the need for large display screens. Requirements, often make the keyboard smaller, with fewer keys, which is not conducive to operation. [0003] With touch screen design, this will be the development trend of light and small notebook computers and smartphones. Small and light notebook computers are favored by the market because of their small size, easy portability and low price. How to save costs and rationally arrange components within a limited size is a problem that many ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/044
Inventor 马里剑皮孟月洪锦维
Owner SUZHOU PIXCIR MICROELECTRONICS
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