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Mobile phone press key light guide plate with metal clips and its manufacturing technique

A technology of metal shrapnel and light guide plate, which is applied in the printing process, printing of special varieties of printed matter, optics, etc., can solve the problems that the mobile phone is not easy to make thin, the overall structure of the product becomes thicker, and the pressing feel of buttons and shrapnel is reduced. Direct, improve the feeling of pressing, reduce the effect of the overall thickness

Active Publication Date: 2009-07-08
JIAXING SHUNON ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adding an extra layer of structure to the module will make the overall structure of the product thicker, and there are 11 layers of PET (polyester film) between the metal shrapnel 4 and the light guide plate 5. The mobile phone is not easy to make thin and cannot meet market demand. The trend of thinning the thickness of mobile phones will also reduce the pressing feel of buttons and shrapnel

Method used

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  • Mobile phone press key light guide plate with metal clips and its manufacturing technique
  • Mobile phone press key light guide plate with metal clips and its manufacturing technique
  • Mobile phone press key light guide plate with metal clips and its manufacturing technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1) Laser engraving the required printed pattern onto the steel plate;

[0045] 2), steel plate and wire mesh grafting;

[0046] (a) put the nylon net on the aluminum mesh basket;

[0047] (b) Set the tension to 33N;

[0048] (c) Stable tension for 48 hours under constant temperature and humidity conditions, the temperature is 21°C, and the humidity is 65%;

[0049] (d) Place the steel plate in the center of the screen;

[0050] (e) bond the steel plate to the screen with AB glue;

[0051] (f) Cut off the wire mesh below the graphic part of the steel plate;

[0052] 3), screen printing light guide point;

[0053] (a) Fix the screen plate on the screen printing machine;

[0054] (b) Adjust the mesh distance to 5mm and the pressure to 5N;

[0055] (c) Transfer the light-guiding ink to the PU / PC board by printing, and control the printing film thickness of each printing, that is, the thickness of the light-guiding point to be 12μ;

[0056] (d) Bake and dry the PU / PC...

Embodiment 2

[0063] 1) Laser engraving the required printed pattern onto the steel plate;

[0064] 2), steel plate and wire mesh grafting;

[0065] (a) put the nylon net on the aluminum mesh basket;

[0066](b) Set the tension to 34N;

[0067] (c) Stable tension for 50 hours under constant temperature and humidity conditions, the temperature is 20°C, and the humidity is 70%;

[0068] (d) Place the steel plate in the center of the screen;

[0069] (e) bond the steel plate to the screen with AB glue;

[0070] (f) Cut off the wire mesh below the graphic part of the steel plate;

[0071] 3), screen printing light guide point;

[0072] (a) Fix the screen plate on the screen printing machine;

[0073] (b) Adjust the mesh distance to 4mm and the pressure to 6N;

[0074] (c) Transfer the light guide ink to the PU / PC board by printing, and control the printing film thickness of each printing, that is, the thickness of the light guide point is 14μ;

[0075] (d) Bake and dry the PU / PC board p...

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Abstract

The invention provides a mobile phone keyboard light guide plate with a metal spring piece, which comprises a plate body. The back of the plate body is printed with light guide points which are cylindrical protrusions made of light guide printing ink. The light guide plate is characterized in that the back of the body of the light guide plate is adhered with the metal spring piece; and the metal spring piece is adhered with the body through water-gel printing ink printed on the outer layer of the light guide points. The body of the light guide plate is a PU plate or a PC plate. The metal spring piece is in a circular shape. The invention also provides a process for producing the mobile phone keyboard light guide plate with the metal spring piece. A PET layer between the light guide plate and the metal spring piece is not required, so the overall thickness of the light guide plate is reduced, the contact between the keyboard and the spring piece is more direct, and the hand feels of pressing between the keyboard and the spring piece are improved. Moreover, the light guide plate is suitable for making thinner mobile phones and meets the market demands.

Description

Technical field [0001] The invention relates to a mobile phone key light guide plate and a production process thereof, in particular to a mobile phone key light guide plate with metal shrapnel and a production process thereof. Background technique [0002] In the design of mobile phones, in order to distinguish the function keys and displayed content of the mobile phone at night and in dark places, lighting devices need to be installed. [0003] Existing mobile phone module 1, such as figure 1 As shown, the LED light 2 , the switch 3 and the metal shrapnel 4 are all installed on the PCB / FPC board 1 , and the guide post 6 and the button 7 are sequentially installed above the metal shrapnel 4 . When the user presses the button 7, the guide post 6 and the metal shrapnel 4 make it contact with the switch 3 on the PCB board 1, the circuit is turned on, a signal is generated, the LED light 2 is turned on, and the light emitted by it is in the form of dots. The button 7 is direct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/00G02B1/10H01H9/18B41M1/12B41M3/00
Inventor 蒋慧鸿
Owner JIAXING SHUNON ELECTRONICS TECH
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