Side type backlight module and display device

Abstract

The invention discloses a side type backlight module and a display device. The side type backlight module comprises a light guide plate and a light source, wherein the light inlet side of the light guide plate is an oblique face, the light source is obliquely arranged, and the light outside side of the light source is opposite to the light inlet side of the light guide plate. In this way, by arranging the light inlet side of the light guide plate into an oblique face, the light source inclines along the oblique face, the light guide plate is designed and formed in a beveling mode based on the principle that the hypotenuse of a right triangle is the longest, so that the light guide plate adopting the oblique face is thinner on the premise that the area of the light inlet side of the light guide plate is unchanged, and then the side type backlight module is made light and thin. Furthermore, by adopting the oblique face for the light inlet side, area is increased, oblique light transmitted by the light source can be effectively shielded, the problem of bright band on the light inlet side of a traditional side type backlight module is solved, and silk screen letterboxing is not needed.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a side-entry backlight module and a display device. Background technique [0002] In traditional edge-lit backlight modules, such as figure 1 As shown, the light guide plate 100 and the LED light bar 200 are designed to face and center, and there is generally a gap of 0.3-0.5mm between them. Most of the light energy of the LED light bar 200 can enter the light guide plate 100 in the forward direction, but due to the existence of the longitudinal light emitting angle of the LED light bar 200 , a small part of the light is emitted obliquely from the gap between the light guide plate 100 and the LED light bar 200 to form a bright light. bring. At present, the bright band problem of the side-entry backlight module cannot be completely improved from the design side, and the bright band problem can only be solved by using the black light absorption principle to solve the bright ...

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies of the prior art above, the purpose of the present invention is to provide a side-entry backlight module and a display device, which can effectively solve the problem of bright bands on the incident light side in traditional side-entry backlight modules, and realize side-entry Thinner and lighter backlight module

Images