Touch screen scanning method, system and device

A scanning method and technology of a scanning system, which are applied in the field of touch screens, can solve problems such as long time, reduced touch screen sensitivity, and slow scanning speed

Active Publication Date: 2013-12-18
ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Due to the large number of sensing lines, each scan takes more time, and the scanning speed is slow, which reduces the sensitivity of the touch screen

Method used

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  • Touch screen scanning method, system and device
  • Touch screen scanning method, system and device
  • Touch screen scanning method, system and device

Examples

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Embodiment Construction

[0050] A touch screen is an inductive liquid crystal display system that can receive input signals from a contact. The touch screen can be a touch panel on a device such as a mobile phone, a palmtop computer, or a tablet computer. The contact can refer to an object such as a user's finger or a stylus. Find the contact position of the contact on the display screen by scanning the touch screen, and execute the corresponding command according to the information of the contact position. Such as figure 1 As shown, the surface of the touch screen 100 has row sensing lines 101 parallel to each other and column sensing lines 102 parallel to each other. Generally speaking, the row sensing lines 101 and column sensing lines 102 are perpendicular to each other, and the row sensing lines 101 and the column sensing lines are at the intersection position. The sensing lines 102 are insulated from each other, and the finger in the figure indicates the position and area where the contact touch...

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PUM

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Abstract

A touch screen scanning method includes: progressively scanning a touch screen to acquire touch information, including touch area, after a touch signal is detected; calculating interval value according to the touch area, sending a signal scanning command according to the interval value, and performing signal scanning on the touch screen according to the signal scanning command. The interval value, namely interval lines for signal scanning, is determined according to the touch area obtained by progressive scanning; accordingly, signal scanning accuracy is ensured, and reduced sensing precision caused by interval scanning is avoided. Compared with the traditional method of scanning progressively each time, the method has the advantages that the signal scanning command is sent according to the interval value to allow for signal scanning on the touch screen, and scanning speed is higher. The invention further provides a touch screen scanning system and a touch screen scanning device.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a touch screen scanning method, system and device. Background technique [0002] Touch screen, also known as "touch screen" and "touch panel", is an inductive liquid crystal display system that can receive input signals such as contacts, which can be used to replace mechanical button panels, and through liquid crystal The display screen produces vivid audio-visual effects. As the latest computer input device, the touch screen is currently the simplest, most convenient and natural way of human-computer interaction. [0003] When scanning the touch screen to detect input signals, the traditional method is to scan all the sensing lines of the touch screen each time, that is, each scan is a progressive scan. Due to the large number of sensing lines, each scan takes a relatively long time, and the scanning speed is slow, which reduces the sensitivity of the touch screen. Con...

Claims

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Application Information

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IPC IPC(8): G06F3/041
Inventor 张学颖张晟
Owner ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD
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