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Flexible circuit board, touch panel and display with touch function

A flexible circuit board, touch panel technology, applied in the input/output process of instruments, electrical digital data processing, data processing, etc., can solve problems such as poor welding process, increased manufacturing cost, signal transmission disconnection, etc., to reduce FPC breakage risk, the effect of simplifying the process and structure

Active Publication Date: 2017-06-27
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the existing second solution is adopted, setting the touch graphics on an independent FPC, although it does not affect the size of the entire display module itself, it will increase the manufacturing cost; The attaching process of attaching the virtual key to the cover plate, and the process of welding the independent FPC and the main FPC, and the poor welding process may easily cause the problem of signal transmission disconnection

Method used

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  • Flexible circuit board, touch panel and display with touch function
  • Flexible circuit board, touch panel and display with touch function
  • Flexible circuit board, touch panel and display with touch function

Examples

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Embodiment 1

[0018] This embodiment provides a flexible circuit board, such as figure 1 , figure 2 As shown, the flexible circuit board includes: the flexible circuit board includes: a button area, on which touch electrodes are arranged; and a transmission area, where the transmission area is used to provide signals to external circuits. The external circuit here may be any circuit, preferably a PCB (printed circuit board) board, which is used for communicating with the flexible circuit board and transmitting signals.

[0019] The touch electrodes are located in the button area 11 of the flexible circuit board, which replaces the touch electrodes located on the upper glass substrate in the prior art, thus avoiding the problem that the length of the upper glass substrate and the entire module is too long; at the same time It saves the operation step of making a touch FPC separately in another prior art, and then welding the touch FPC and the main FPC together, avoiding the problem of open...

Embodiment 2

[0026] This embodiment provides a touch panel, including the flexible circuit board described in any one of the above embodiments. The touch panel can realize the touch control function, and at the same time, it can reduce the risk of FPC breakage caused by the sudden bending of the flexible circuit board it contains.

[0027] Further, such as Figure 5 As shown, the touch panel further includes a cover plate 31 , and the button area of ​​the flexible circuit board is bonded to the side 301 of the cover plate 31 facing the flexible circuit board through a double-sided adhesive tape. combined reference figure 1 , image 3 , there is a button icon 20 ( Figure 5 not shown). In this way, a touch action can be performed according to the displayed position of the button icon 20, thereby realizing a touch function. Wherein, the button icon 20 may be formed on the inner side 301 of the cover plate 31 by silk screen printing. The inner side refers to the surface of the cover pla...

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PUM

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Abstract

The invention provides a flexible circuit board, a touch panel and a display with touch function. The flexible circuit board includes a key area provided with touch electrodes and a transmission area for providing signals to external circuits. The touch panel includes the flexible circuit board as mentioned above. The display includes a touch panel as described above, and the transmission area is bent around the edge of the display panel. In the present invention, the touch electrodes are directly formed on the main FPC, which can reduce the production and attachment process of an additional independent FPC that realizes the touch function, and simplifies the process and structure. Further, separating the transmission area on the FPC connected to the external circuit from the key area realizing the touch function can reduce the risk of the FPC breaking when the FPC is bent.

Description

technical field [0001] The present invention relates to the touch field. In particular, it relates to a flexible circuit board, a touch panel with the flexible circuit board and a display with touch function. Background technique [0002] At present, in the existing integrated touch screen, there are mainly two ways to realize the touch function and complete the design of touch signal transmission: first, the touch graphics are directly made on the upper glass substrate (color filter substrate) of the display panel , and set the virtual key directly on the touch graphic, and realize the touch function by touching the virtual key and the corresponding touch graphic; secondly, make a flexible printed circuit board (flexible printed circuit, FPC) for transmitting touch signals separately ), and then attached to the cover lens of the integrated touch screen. For the first solution, since the general touch pattern is made on the upper glass substrate of the display panel, that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
Inventor 王丽花马骏陈浩李嘉灵马从华
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD