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LCD module and encapsulation method thereof

The technology of a liquid crystal display module and a liquid crystal screen is applied in the direction of optics, instruments, printed circuits connected with non-printed electrical components, etc., which can solve the problems that it is difficult to ensure the correct position of light-emitting diodes 4, so as to ensure brightness and uniformity, and improve Assembly quality, to ensure the effect of precise alignment

Inactive Publication Date: 2009-05-20
WUXI SHARP ELECTRONICS COMPONENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing liquid crystal display module structure see figure 1 , figure 2 , which includes a backlight module 1, a liquid crystal screen 2, a light emitting diode 4 and a flexible printed circuit board 5, the light emitting diode 4 is directly mounted on the flexible printed circuit board 5, and the flexible printed circuit board 5 equipped with the light emitting diode 4 and the liquid crystal screen 2 thermocompression connection, the liquid crystal screen 2 is assembled in the backlight module 1, the back of the backlight module 1 is provided with alignment holes for light-emitting diodes, and the flexible printed circuit board 5 equipped with light-emitting diodes 4 is bent to the backlight module 1. On the back, the light-emitting diode 4 enters the alignment hole and is fixed with adhesive tape to be assembled into the backlight module 1. The entire module is connected to the client through the pin socket on the flexible printed circuit board 5. The disadvantage is that the light-emitting diode When the flexible printed circuit board 5 of 4 is assembled into the backlight module, it is difficult to ensure the correct position of the light-emitting diode 4, and it is easy to produce positional deviation in the horizontal or vertical direction, see image 3 , Figure 4 ; and when the light emitting diode 4 enters the alignment hole and is assembled into the backlight module, since the flexible printed circuit board 5 will generate a counter force in the bent state to make the flexible printed circuit board 5 float, it will inevitably cause the light emitting diode 4 to take place. offset, see Figure 5 ; and when the flexible printed circuit board 5 is inserted into the terminal, the position of the light-emitting diode 4 will also be deflected due to the insertion force, see Image 6 , 11 in the figure is the joint part of the flexible printed circuit board; and the offset of the position of the light-emitting diode will directly affect the brightness and uniformity of the display of the liquid crystal module

Method used

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  • LCD module and encapsulation method thereof
  • LCD module and encapsulation method thereof
  • LCD module and encapsulation method thereof

Examples

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Embodiment Construction

[0017] See Figure 7 , Figure 8 , Figure 9 , a liquid crystal display module includes a backlight module 1, a liquid crystal screen 2, a light emitting diode 4 and a flexible printed circuit board 5, the flexible printed circuit board 5 is connected to the liquid crystal screen 2, the liquid crystal screen 2 is assembled in the backlight module 1, and the flexible printed circuit board The circuit board 5 includes a connection area 6 connected to the liquid crystal screen 2 by thermocompression, a wiring area 7 and a light-emitting diode installation area 8, and the flexible printed circuit board 5 and the liquid crystal screen 2 are thermocompressed in the thermocompression connection area 6, and the flexible printed circuit The board 5 separates the wiring area 7 from the light emitting diode installation area 8 by partial cutting, the partial cutting cut 9 reaches the edge of the liquid crystal screen 2, the light emitting diode 4 is installed on the light emitting diode...

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Abstract

The invention provides an LCD module, which can guarantee the precise counterpoint of an LBD and a registration hole, so as to guarantee displayed brightness and uniformity of the LCD module. Therefore, the invention also provides a packaging method. The LCD module comprises a backlight source module, an LCD panel, the LBD and a flexible PCB. The invention is characterized in that the flexible PCB comprises a connecting area connected with the LCD panel through hot pressing, a distribution area and an installation area of the LBD, wherein the flexible PCB and the LCD panel are connected through hot pressing at the hot pressing connecting area; the flexible PCB is partially cut so as to separate the distribution area from the LBD installation area; a partially cutting notch reaches the edge of the LCD panel; the LBD is arranged on the LBD installation area of the flexible PCB; the wiring of the LBD on the flexible PCB passes around the notch and is converged with the wiring on the distribution area; and the wiring of the LBD which passes around the notch is connected with the LCD panel on the hot pressing connecting area by hot pressing.

Description

(1) Technical field [0001] The invention relates to the technical field of liquid crystal display modules, in particular to a liquid crystal display module and a packaging method thereof. (2) Background technology [0002] Existing liquid crystal display module structure see figure 1 , figure 2 , which includes a backlight module 1, a liquid crystal screen 2, a light emitting diode 4 and a flexible printed circuit board 5, the light emitting diode 4 is directly mounted on the flexible printed circuit board 5, and the flexible printed circuit board 5 equipped with the light emitting diode 4 and the liquid crystal screen 2 thermocompression connection, the liquid crystal screen 2 is assembled in the backlight module 1, the back of the backlight module 1 is provided with alignment holes for light-emitting diodes, and the flexible printed circuit board 5 equipped with light-emitting diodes 4 is bent to the backlight module 1. On the back, the light-emitting diode 4 enters the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13H05K1/18
Inventor 刘宇
Owner WUXI SHARP ELECTRONICS COMPONENTS
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