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Capacitance touch screen with key backlight source

A technology of capacitive touch screen and backlight, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problems of complex structure and high production cost, meet the needs of cost and individualization, reduce The effect of the key backlight component

Active Publication Date: 2016-02-17
NANJING WALLY ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the popularity of capacitive touch screen applications, under the guidance of personalization and trends, conventional capacitive touch screens do not have many novel features that can attract users' special attention. The button light source of conventional capacitive touch screens is used as a single component or combination On the main board, or combined on the liquid crystal module, or attached to the touch screen, the structure is complex and the production cost is high, such as figure 1 As shown, the button light source part 14 of the conventional capacitive touch screen is a single part

Method used

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  • Capacitance touch screen with key backlight source
  • Capacitance touch screen with key backlight source
  • Capacitance touch screen with key backlight source

Examples

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Embodiment 1

[0018] Embodiment 1 A capacitive touch screen with button backlight, comprising a cover plate 1, a capacitive screen functional sheet 2 and a flexible circuit board 3, the cover plate 1 is covered on the capacitive screen functional sheet 2 by silica gel, and the capacitive screen function The flexible circuit board 3 is arranged under the sheet 2, wherein the capacitive screen functional sheet 2 is bonded together by a single-layer or multi-layer electrode layer through an adhesive material, and the electrode layer is plated with indium tin oxide on the substrate, so Said cover plate 1 can be known various materials such as toughened glass, PC, PMMA, above all is existing knowledge, and the improvement of the present invention is, as figure 2 As shown, the substrate 4 of the capacitive screen functional sheet 2 is made of a light-guiding material and used as a light-guiding member. Preferably, the substrate 4 is made of a PET light-guiding material, and the upper surface of t...

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Abstract

The invention discloses a capacitance touch screen with a key backlight source. A light conductive material is adopted as a base material of a capacitance screen function piece, the base material serves as a light guiding element, the upper surface of the base material is divided into an electrode area and a key area, and a light guiding area is carved in the key area. A first reflection layer is arranged on the lower surface of a cover plate and is provided with a light-pervious area. A second reflection layer is arranged on the upper surface of a flexible circuit board. The projection area from orthographic projections of the first reflection layer and the second reflection area to the upper surface of the base material covers the key area and is not intersected with the electrode area. The projection area from an orthographic projection of the light guiding area to the lower surface of the cover plate covers the light-pervious area. A light emitting source is arranged on one side of the upper surface of the flexible circuit board. Special structures different from conventional touch screens can be manufactured, the number of key backlight source parts is reduced, key light source control can be achieved through the touch screen, and the requirements for cost and individuation of the emerging market are met.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a capacitive touch screen with a backlight for controlling keys to emit light. Background technique [0002] Since the advent of Iphone, its gorgeous appearance, novel operation method and comfortable feel, capacitive touch screen has been recognized by customers, such as mobile phones, media players, navigation systems, digital cameras, digital photo frames, PDAs, game equipment, monitors, electrical appliances It can be seen in various fields of daily life such as control and medical equipment. However, with the popularity of capacitive touch screen applications, under the guidance of personalization and trends, conventional capacitive touch screens do not have many novel features that can attract users' special attention. The button light source of conventional capacitive touch screens is used as a single component or combination On the main board, or combined on the li...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 高丽雯孙大鹏窦胜国王琦
Owner NANJING WALLY ELECTRONICS TECH
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