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A touch screen positioning method, device and touch screen equipment

A positioning method and technology of a positioning device, which are applied in the directions of instruments, calculations, electrical digital data processing, etc., and can solve problems such as complex logic, disconnection, and large amount of computation

Active Publication Date: 2019-07-12
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the traditional algorithm is based on optical path space mathematical operations and mathematical logic operations for true point identification and false point elimination, there are problems such as large amount of calculation and complex logic. The specific performance is that when the number of contacts increases, the response speed is obviously slowed down. It is easy to lose points, disconnect, etc., which seriously affects user experience
[0005] In the prior art, upgrading hardware is generally used to solve the above problems, but the improvement space of processor performance is limited, and only relying on upgrading hardware cannot fundamentally solve the problem of large amount of computation.

Method used

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  • A touch screen positioning method, device and touch screen equipment
  • A touch screen positioning method, device and touch screen equipment
  • A touch screen positioning method, device and touch screen equipment

Examples

Experimental program
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specific Embodiment 1

[0114] by Figure 7 Scan in the scanning mode shown, that is, one cycle T=t5+t6, within one scan cycle, scan with two groups of optical paths; within the time period of t5, the infrared emitting elements H1-H6 are turned on sequentially, and one infrared emitting element Transmit two infrared signals with different slopes ( Figure 7The optical path 1 is an infrared signal with one slope, and the optical path 2 is an infrared signal with another slope), and the infrared receiving elements h1-h6 sequentially receive two infrared signals with different slopes emitted by a corresponding infrared emitting element; Figure 7 (b) shows that during the time period t6, the infrared emitting elements D1-D10 are turned on sequentially, wherein one infrared emitting element emits two infrared signals with different slopes, and the infrared receiving element d1-d10 receives the corresponding infrared emitting element in turn Two infrared signals with different slopes are emitted.

[011...

specific Embodiment 2

[0138] by Figure 7 Scan in the scanning mode shown, that is, one cycle T=t5+t6, within one scan cycle, scan with two groups of optical paths; within the time period of t5, the infrared emitting elements H1-H6 are turned on sequentially, and one infrared emitting element Transmit two infrared signals with different slopes ( Figure 7 The optical path 1 is an infrared signal with one slope, and the optical path 2 is an infrared signal with another slope), and the infrared receiving elements h1-h6 sequentially receive two infrared emitting signals emitted by a corresponding infrared emitting element; Figure 7 (b) shows that during the time period t6, the infrared emitting elements D1-D10 are turned on sequentially, wherein one infrared emitting element emits two infrared signals at different angles, and the infrared receiving element d1-d10 receives the corresponding infrared emitting element in turn Two infrared emission signals emitted.

[0139] like Figure 28 As shown, t...

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Abstract

The invention provides a touch screen positioning method and device and touch screen equipment, relates to the field of touch technology, and solves the problems of low response speed, and high easiness in point losing and line breaking during positioning of the existing touch screen. The touch screen positioning method is applied to the touch screen equipment, and the touch screen is divided into a plurality of touch units. The touch screen positioning method comprises the following steps: performing scanning with M groups of light paths within a scanning period, and acquiring practical light path blocking information; acquiring reference light path blocking information of all the touch units; determining a target unit set according to the practical light path blocking information and the reference light path blocking information of all the touch units; determining the position information of touch points according to the target unit set. The method is applied to the detection of the touch screen.

Description

technical field [0001] The present invention relates to the field of touch technology, in particular to a touch screen positioning method, device and touch screen equipment. Background technique [0002] Today, touch screens have been widely used in all aspects of social life. The touch display screen only needs the user to touch the icon or text on the display screen with his finger to realize the operation, which makes the human-computer interaction more straightforward. According to the working principle of the touch screen and the medium for transmitting information, the touch screen is generally divided into four types, namely resistive type, capacitive sensing type, infrared type and surface acoustic wave type. Among them, the infrared touch screen is not affected by current, voltage and static electricity, and is suitable for harsh environmental conditions, which is the development trend of touch screen products. [0003] like figure 1 As shown, it is a schematic s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/042
Inventor 王武军
Owner HISENSE VISUAL TECH CO LTD