Condenser type touch screen

A capacitive touch screen and electrode technology, which is applied to the input/output process of electrical digital data processing, instruments, and data processing, etc. Display the effect of visual effects

Active Publication Date: 2009-07-08
SHANTOU GOWORLD DISPLAY (PLANT II) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conductive layer of the transparent electrode is composed of multiple electrodes, and the graphic shapes of the electrodes are mostly designed as polygons such as rectangles, regular hexagons, and rhombuses. When the touch screen is applied to a dot-matrix display device, the edges of these electrodes will always exist in contact with the dot matrix. In the case that the array direction (X direction or Y direction) of the pixel points of the dot matrix display device is parallel or approximately parallel (that is, the angle between the edge of the electrode and the array direction of the pixel points of the dot matrix display device is very small), since the pixel points of the dot matrix display device There will be a certain gap distance between the capacitive touch screen, so when the light comes out from the pixe

Method used

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  • Condenser type touch screen
  • Condenser type touch screen
  • Condenser type touch screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like figure 1 and figure 2 As shown, this capacitive touch screen includes a transparent insulating layer 11, a transparent electrode conductive layer 12 and a shielding layer 13, the transparent electrode conductive layer 12 is arranged on the outer surface of the transparent insulating layer 11, and the shielding layer 13 is arranged on the transparent insulating layer 13 On the inner side of the layer 11 (when the capacitive touch screen is configured on the display device, the shielding layer 13 is on the side of the capacitive touch screen close to the display device, that is, the shielding layer 13 is located between the transparent insulating layer 11 and the display device), the transparent electrode is conductive Layer 12 is composed of a plurality of electrodes (including six sensing electrodes 121 , six lead electrodes 122 and filling electrodes 123 ). This capacitive touch screen can be used for single-touch operation. In addition, the number of sensing e...

Embodiment 2

[0039] like Image 6 and Figure 7 As shown, the capacitive touch screen includes a first transparent insulating layer 21, The first transparent electrode conductive layer 22 , the insulating separation layer 23 , the second transparent electrode conductive layer 24 , the second transparent insulating layer 25 and the shielding layer 26 . The first transparent electrode conductive layer 22 is arranged on the inner side of the first transparent insulating layer 21, and the second transparent electrode conductive layer 24 is arranged on the outer side of the second transparent insulating layer 25; the insulating spacer layer 23 is made of insulating material, so that the first There is no conduction between the first transparent electrode conductive layer 22 and the second transparent electrode conductive layer 23 ; the shielding layer 26 is disposed on the inner side of the second transparent insulating layer 25 .

[0040] The first transparent electrode conductive layer 22 i...

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Abstract

A capacitive touch screen comprises at least one transparent insulated layer and at least one transparent electrode conducting layer, wherein, the transparent electrode conducting layer is arranged on the transparent insulated layer, and comprises a plurality of electrodes. The touch screen is characterized in that the edge of each electrode on the transparent electrode conducting layer is in the shape of a saw tooth in a visual area of the capacitive touch screen, so that the bending of the electrode edge can be utilized, to enable the edge orientation of the electrodes with smaller line width on the capacitive touch screen and the clearance between electrodes to incline with the arrange direction of pixel point arrays of a display device at a certain angle. Therefore, as far as the light interference is concerned, the slit direction is changed so that the generated interference fringes are not evident or disappear, the light interference in the visual area of the touch area is effectively weakened or avoided, and the better visual effect is possessed by the display device.

Description

technical field [0001] The invention relates to an input device for interaction between man and machine, in particular to a capacitive touch screen. Background technique [0002] Capacitive touch screens have been widely used in various electronic products, such as mobile phones, mp4, POS terminals and so on. The capacitive touch screen has a high transmittance, does not need to use force to apply pressure, can resist harsh external environments, has a long service life, and is more user-friendly in operation. [0003] Existing capacitive touch screens are usually provided with one or more transparent electrode conductive layers (usually one or two transparent electrode conductive layers; when provided with a transparent electrode conductive layer, on the transparent insulating layer One transparent electrode conductive layer is set on one plane; when there are two transparent electrode conductive layers, one transparent electrode conductive layer can be set respectively on...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 沈奕吴永俊郑清交林铿李永忠崔卫星黎明杨柳根
Owner SHANTOU GOWORLD DISPLAY (PLANT II) CO LTD
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