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Touch screen device

A touch screen and packaging cover technology, applied in the field of display screens, can solve problems such as yield limitation, complex manufacturing process, and influence of touch effects

Active Publication Date: 2015-02-25
GUANGZHOU GOVISIONOX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the touch screens used on mobile phones or tablets include resistive, capacitive, infrared and other types, but these technologies have many defects: (1) the premise of touch is that the finger must touch the screen to cause changes in capacitance or resistance, But the function of volley touch cannot be realized; (2) The interference is relatively large, and the finger with water will affect the touch effect, and it cannot be operated with gloves; (3) The thickness cannot be effectively reduced, which is not conducive to the development of thinner and lighter mobile phones.
However, this method leads to more lines on the substrate, which makes the manufacturing process complicated, the yield rate is limited, and it is not conducive to the improvement of pixel density.
In addition, the circuit for detecting the light sensor and the circuit for driving the display part to emit light are both arranged on the same substrate, and there is capacitance and inductance between them, and there is interference of voltage and current signals, which will reduce the sensitivity and accuracy of touch reflection

Method used

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Embodiment Construction

[0018] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0019] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no interveni...

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PUM

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Abstract

The invention relates to a touch screen device which comprises a display portion and a packaging cover plate arranged on the display portion. The display portion comprises a substrate and a display unit arranged on the substrate. The display unit is arranged between the packaging cover plate and the substrate, and a photoelectric sensor array is further arranged on the surface, opposite to the display unit, of the packaging cover plate. According to the touch screen device, the photoelectric sensors are arranged on one face, facing the display unit, of the packaging cover plate, the photoelectric sensors are used for sensing brightness changes of touch points or shielding points, so that a touch function is triggered; the photoelectric sensors and the display unit are located on different planes, so that detection circuits in the photoelectric sensors are far from a drive circuit of a light emitting component in the display portion, interference between the detection circuits and the drive circuit is avoided, and touch reaction sensitivity and precision can be guaranteed.

Description

technical field [0001] The invention relates to the field of display screens, in particular to a touch screen device. Background technique [0002] Touch screen is a widely used display screen. At present, the touch screens used on mobile phones or tablets include resistive, capacitive, infrared and other types, but these technologies have many defects: (1) the premise of touch is that the finger must touch the screen to cause changes in capacitance or resistance, But the function of volley touch cannot be realized; (2) The interference is relatively large, and the finger with water will affect the touch effect, and it cannot be operated with gloves; (3) The thickness cannot be effectively reduced, which is not conducive to the development of thin and light mobile phones. . [0003] The Chinese patent application with the publication number CN1758197A discloses a touch panel, which assembles a light sensor and a display unit on the same substrate, and sets the input by com...

Claims

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Application Information

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IPC IPC(8): G06F3/042
CPCG06F3/0428
Inventor 刘敏魏朝刚
Owner GUANGZHOU GOVISIONOX TECH CO LTD
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