FPC plate of backlight source

Abstract

The invention discloses an FPC plate of a backlight source. The FPC plate includes an FPC plate body, multiple welding discs are arrayed on the FPC plate body from left to right in sequence, and a strip-shaped white oil layer extending horizontally is formed on the front surface of the FPC plate body through a silk-screen printing process; gaps A are positioned between the left end of the white oil layer and the left border of the FPC plate body and between the right end of the white oil layer and the right border of the FPC plate body, a gap B is positioned between the upper end of the whiteoil layer and the upper border of the FPC plate, and gaps C are positioned between the lower end of the white oil layer and the welding discs. According to the technical scheme, the reject ratio of backlight can be effectively reduced, the consumption of white oil is reduced, the cost of an FPC is reduced, the probability of generation of black and white spots and light spots due to falling of white oil shreds is decreased, and the effects of increasing the product yield and reducing the cost are achieved. Moreover, the falling white oil shreds can also be bonded to the FPC plate body within the coverage range of the FPC plate and are prevented from entering a VA area and then causing generation of the black and white spots and the light spots, and therefore not only is the illumination effect of backlight not damaged, but also the product yield can also be increased.

Description

technical field [0001] The invention relates to the technical field of backlight FPC boards, in particular to a backlight FPC board. Background technique [0002] With the development of science and technology, liquid crystal displays have been widely used in various electronic devices that need to be displayed. Since the liquid crystal material itself does not have self-luminous special effects, it is necessary to use a special backlight module to provide the LCD panel with backlight for displaying images. source. The backlight module usually includes a light source, such as a light guide plate, which is used to scatter the light emitted by the light source to provide uniform surface-emitted light. The light guide plate is generally connected to one side of the backlight FPC board, and then LED components are arranged on the FPC board to form a backlight semi-finished product. [0003] refer to figure 1 , which is a structural schematic diagram of the FPC board of the ba...

AI Technical Summary

Problems solved by technology

[0003] refer to figure 1 , which is a structural schematic diagram of the FPC board of the backlight in the prior art. At present, the screen printing on the front of the backlight FPC board 10 is a full-coverage screen printing white oil 30, which will be caused by the falling white oil 30 when the backlight FPC board 10 is assembled and the product is used. The debris enters the VA area (that is, the visual area) of the product to produce black and white spots and bright spots, which easily loses the luminous effect of the backlight and reduces the product yield.

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