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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: 2009-08-05
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 in conjunction with the accompanying drawings and embodiments.

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

[0028] The coordinate information processing unit 13 includes a touch chip 130 and a microprocessor 131, the scanning line of the indium tin oxide panel 10 is connected to the scanning line pin of the touch chip 130, and the signal output terminal of the touch chip 130 is connected to the micropr...

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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 than or 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 displays the 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 control pen). 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 in 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 to perform various inputs. Requirements often make the keyboard smaller and have fewer keys, which is not conducive to operation. [0003] With a touch screen design, this will be the development trend of light and small notebook computers and smart phones. Small and light notebook computers are favored by the market because of their small size, portability and low price. In a limited volume, how to save costs and arrange components reasonably is a problem that many manufacturers have been working hard to improve. Using touch screen design, combined with The virtual keyboard and multi-finger touch fun...

Claims

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Application Information

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IPC IPC(8): G06F3/041G06F3/044
Inventor 马里剑皮孟月洪锦维
Owner SUZHOU PIXCIR MICROELECTRONICS
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