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Touch panel and manufacturing method thereof

A touch panel and substrate technology, which is applied to instruments, electrical digital data processing, and input/output processes of data processing, etc. The effect of improving positioning accuracy

Inactive Publication Date: 2014-10-29
CHUNG HUA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high speed of surface acoustic waves, a faster signal processor and a higher performance analog / digital (A / D) converter are required, which will greatly increase the cost of surface acoustic wave touch panels.
Conversely, if you want to avoid cost increase, you can only sacrifice its resolution

Method used

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  • Touch panel and manufacturing method thereof
  • Touch panel and manufacturing method thereof
  • Touch panel and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0055] figure 1 It is a schematic diagram of a touch panel 1 according to an embodiment of the present invention. refer to figure 1 As shown, the touch panel 1 includes a plurality of sensing units 11 arranged in an array. A plurality of sensing units 11 can be (but not limited to) arranged in an array on a substrate 10 . A plurality of arrayed drive electrodes (Drive Electrode) 12 and a plurality of arrayed sensing electrodes (Sense Electrode) 13 are formed on the substrate 10, and a plurality of sensing units 11 are individually separated, and each sensing unit 11 is combined with a phase An adjacent driving electrode 12 is connected to an adjacent sensing electrode 13 . The sensing unit 11 is used for sensing the touched position of the panel, or a single area, or multiple areas. The driving electrodes 12 and the sensing electrodes 13 can be transparent conductors (such as indium tin oxide (ITO) to make the substrate 10 transparent), and these two groups of electrodes 1...

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Abstract

The invention provides a touch panel and a manufacturing method thereof. The touch panel is composed of a plurality of basic sensing units which are arranged in an array mode. Each basic sensing unit comprises a pressure sensing transistor and a selecting transistor. Each pressure sensing transistor comprises a first electrode, a second electrode, a grid electrode, a light shading layer, a channel connected with the first electrode and the second electrode, an insulation layer formed on the channel, and a piezoelectric material formed on the insulation layer, wherein the piezoelectric material comprises polyvinylidene fluoride, lead titanate zirconium, zinc oxide, barium titanate, lithium niobate and lead titanate. Each selecting transistor comprises a first electrode, a second electrode and a third electrode, wherein the first electrode of each selecting transistor can be connected with a sensing electrode of the touch panel, the second electrode of each selecting transistor can be connected with the first transistor of the corresponding pressure sensing transistor, and the third electrode of each selecting transistor is a grid electrode and can be connected with a drive electrode of the touch panel.

Description

technical field [0001] The present invention relates to touch technology, and in particular to a touch panel and a manufacturing method thereof. Background technique [0002] With the popularity of computers, keyboards and mice have become the most acceptable information input devices for the general public. However, due to its disadvantages such as large size and inconvenient portability, another touch input device that overlaps with the screen can be developed. [0003] The touch panel is a humanized input device that can directly click a specific area on the panel with a finger or a stylus to achieve an input command. With the development trend of light, thin, short, small and complex functions of electronic products, the space available for placing the products is very limited, and the use of the touch surface can take up less space. In addition to having the functions of a keyboard and a mouse, it can also provide user-friendly operation methods such as manual input, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 林君明
Owner CHUNG HUA UNIVERSITY
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