Backlight module and display device

Abstract

The application discloses a backlight module and a display device, which relate to the field of display technology, including a substrate, a barrier structure arranged on the substrate, and a plurality of light-emitting units. The barrier structure includes a plurality of sub-blocks, and each sub-block surrounds and emits light Unit arrangement, each light emitting unit is respectively provided with at least one light emitting diode element; the backlight module is provided with a central area and a peripheral area surrounding the central area, and each sub-block located in the peripheral area includes at least one set of inner walls, and the set of inner walls includes a second An inner wall and a second inner wall. When the first inner wall is away from the central area relative to the second inner wall, the included angle between the plane where the first inner wall is located and the plane where the substrate in the corresponding light-emitting unit is located is set as an acute angle. In this way, due to the reflection effect of the first inner wall, at least part of the light emitted by the light-emitting units located in the peripheral area will converge to the central area, so that the viewing angle requirement of the vehicle-mounted display device can be met.

Description

technical field [0001] The present application relates to the field of display technology, in particular, to a backlight module and a display device. Background technique [0002] Head Up Display (HUD), referred to as HUD, is a comprehensive electronic display device used in automobiles or aircrafts. On the front windshield, the height is approximately at the level of the driver's eyes. When the driver looks forward through the HUD, he can easily integrate the external scene with the data displayed on the HUD, so that the driver can always keep his head up. Posture, reduce the delay and discomfort caused by ignoring the rapid changes in the external environment between raising and lowering the head and the need for constant adjustment of the focal length of the glasses. [0003] The light source of the HUD is usually provided by the backlight module. In the design of the existing backlight module, the light emitted by the light-emitting unit is usually perpendicular to the...

AI Technical Summary

Problems solved by technology

In the design of the existing backlight module, the light emitted by the light-emitting unit is usually perpendicular to the light-emitting surface of the display, so that the light intensity of each block of the display is uniform, the brightness of the display is the same, and the image is presented to the maximum. When it is on the windshield, the display effect is not good, which affects the user's visual experience

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