Backlight module and display device

• Main Authors: YUAN HONGLIANG, CAO SHUAN, WANG SHUANG, LIN BANG
• Format: Patent
• Language: Chinese; English
• Published: 19.03.2024
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The utility model relates to the technical field of display devices, and discloses a backlight module, the backlight module comprises a light source, a light guide plate and a prism layer, the light guide plate comprises a bottom surface and a light emitting surface, the bottom surface is provided with a plurality of light guide lattice point structures, each light guide lattice point structure comprises a reflecting surface, a first included angle is formed between the reflecting surface and the bottom surface, and the prism layer is arranged on the bottom surface. The light source is reflected by the reflecting surface to form first light; the prism layer is arranged on the light-emitting surface of the light guide plate, the edge of the prism layer faces the light-emitting surface, and the first light is refracted by the prism layer to form second light with the emitting angle ranging from 50 degrees to 60 degrees. By the adoption of the technical scheme, the problem that in the prior art, a central contro