Low coupling capacitor condenser type touch control board

A capacitive touch and electrode technology, which is applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve problems such as large equivalent area of ​​capacitance, increase of overall system load, and increase of coupling capacitance

Inactive Publication Date: 2008-02-20
AU OPTRONICS CORP
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  • Summary
  • Abstract
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Problems solved by technology

However, this design makes the sides of electrodes 31 of the same layer or different layers have longer effective corresponding lengths, and the distance between the sides does not change, so that the equivalent area of ​​capacitance generated therebetween is larger
Due to the large lateral capacitance between the electrodes 31, the overall coupling capacitance of the system is increased, resulting in an increase of the overall load of the system

Method used

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  • Low coupling capacitor condenser type touch control board
  • Low coupling capacitor condenser type touch control board
  • Low coupling capacitor condenser type touch control board

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Embodiment Construction

[0041] The invention provides a capacitive touch panel and a display device using the capacitive touch panel. The display device mentioned here includes but is not limited to a flat display device using a display panel. The display panel preferably includes a liquid crystal display panel, an organic light emitting diode display panel or other display panels. In addition, the liquid crystal display panel includes a transmissive liquid crystal display panel, a reflective liquid crystal display panel, a transflective liquid crystal display panel and other types of liquid crystal display panels.

[0042] In the embodiment shown in FIG. 2 , the display device 100 includes a display panel 110 and a capacitive touch panel 200 . The capacitive touch panel 200 is preferably disposed on the display surface 111 of the display panel 110 ; the image of the display panel 110 on the display surface 111 can be displayed externally through the capacitive touch panel 200 . When the user click...

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Abstract

The utility model provides a capacitive type touch panel with low coupling capacitance and a display unit with the capacitive type touch panel, comprising a plurality of first directional electrode strings and a plurality of second directional electrode strings. A plurality of A electrodes are arranged on the first directional electrode strings along the first direction; a plurality of B electrodes are arranged on the second directional electrode strings along the second direction. In order to reduce the lateral capacitor between the A electrode and the B electrode or the adjacent two A electrodes, the width of A electrode is reduced along the second direction from the middle part to the both sides. Furthermore, each A electrode has a circumference of A electrode form. Meanwhile, the quarter part of the circumference adjacent to the B electrode has the dissimilar first slope change rate and the second slope change rate.

Description

technical field [0001] The present invention relates to a capacitive touch panel and a display device using the capacitive touch panel; specifically, the present invention relates to a capacitive touch panel with low coupling capacitance and a display device using the capacitive touch panel display device. Background technique [0002] Display panels and flat display devices using display panels have gradually become the mainstream of various display devices. For example, thin TVs for home use, LCD monitors for personal computers and notebook computers, display screens for mobile phones and digital cameras, etc., are all products that use a large number of display panels. As product design gradually tends to be user-oriented, display panels with touch input functions have gradually become the focus of industrial development in order to consider the user's operation convenience. [0003] Taking a liquid crystal display panel as an example, as shown in FIG. 1 a , a conventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
Inventor 杨敦钧李锡烈胡至仁
Owner AU OPTRONICS CORP
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