Light guide plate, backlight module and display device

Abstract

The invention discloses a light guide plate, a backlight module and a display device. The light guide plate comprises a light guide plate substrate; the side face of the light guide plate substrate is an in-light face; one face, vertical to the in-light face, of the light guide plate substrate is an out-light face; the light guide plate is also provided with a plurality of first-type dots and a plurality of second-type dots; the first-type dots and the second-type dots are distributed in an interleaved mode on the face, opposite to the out-light face, of the light guide plate substrate; or the first-type dots are arranged on the out-light face of the light guide plate substrate, and the second-type dots are arranged on the face, opposite to the out-light face, of the light guide plate substrate; and the distribution density of the second-type dots are increased progressively in a direction from being close to the in-light face to deviating from the in-light face. The technical scheme of the invention aims at acquiring a light guide plate with a uniform plane light source and easy to process.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a light guide plate, a backlight module using the light guide plate, and a display device using the backlight module. Background technique [0002] With the improvement of interior decoration requirements, the thickness of various display devices is gradually becoming thinner, which requires the backlight module that provides the light source for the display device to choose the side-in type, and the light guide plate is a more important part of the side-in type backlight module. component, which is the key to obtaining a uniform area light source. Therefore, the structural design of the light guide plate is particularly important. Setting dots on the light guide plate can improve the scattering function of the light guide plate, so that the light source emitted from the light emitting surface is more uniform. [0003] At present, the dot surface of the light guide plate is fo...

AI Technical Summary

Problems solved by technology

[0003] At present, the dot surface of the light guide plate is formed by printing, etching, hot pressing, laser engraving or sandblasting alone. The processing technology is complicated and the cost is high, and the obtained products have high defectivity.

As the thickness of the display device becomes thinner, the thickness of the light guide plate also gradually decreases, and its own concealing effect becomes worse. It is easy to see each dot of the light guide plate under the LCD screen (that is, the problem of the visibility of the dots). The network structure can no longer meet the demand

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