Display substrate, manufacturing method thereof and spliced display device

Abstract

The invention provides a display substrate, a manufacturing method thereof and a spliced display device. The display substrate comprises: a plurality of substrate base plates which are spliced to formthe display substrate; a plurality of light-emitting chips arranged on one side of the substrate base plate; a reflection retaining wall arranged between any two adjacent light-emitting chips; and afirst black matrix layer arranged on the surface, far away from the substrate, of the reflection retaining wall. According to the display substrate, the reflection retaining wall is arranged between any two adjacent light-emitting chips, so that the problem of large-view-angle color cast is solved, the light efficiency of the light-emitting chips is improved, the first black matrix layer is additionally arranged on the upper surface of the reflection retaining wall, reflection of the reflection retaining wall to ambient light is weakened, the brightness contrast ratio is improved, and the display effect is better.

Description

technical field [0001] The present invention relates to the field of display technology, in particular, the present invention relates to a display substrate, a manufacturing method thereof, and a spliced ​​display device. Background technique [0002] At this stage, the design of splicing display is becoming more and more popular, especially the large-size display products that are seamlessly spliced ​​after packaging small light-emitting chips (Mini or Micro). Because this technology is still in the stage of technology research and development, splicing Displayed processing optics also vary. [0003] However, in the design of the small-pitch light diode (Mini LED) display on the glass substrate, the following pain points need to be considered: first, the reflection of ambient light, the reflectivity of the glass itself is high, when the ambient light hits the glass Reflection will occur on the surface of the glass, which may cause the viewer to not see the picture clearly....

AI Technical Summary

Problems solved by technology

[0003] However, in the design of the small-pitch light diode (Mini LED) display on the glass substrate, the following pain points need to be considered: first, the reflection of ambient light, the reflectivity of the glass itself is high, when the ambient light hits the glass Reflection will occur on the surface of the glass, which may cause the viewer to not see the picture clearly. In addition, the reflectivity of various places on the glass (such as pixel positions, between pixels, and glass splicing) is different, which may easily lead to different degrees of blurring in the picture. Distortion; second, the light efficiency needs to be improved, and the light output efficiency of the LED needs to be increased to reduce power consumption; third, the color shift problem of large viewing angles, refer to figure 1 , the red, green and blue (RGB) light-emitting chip in a small package does not emit uniform light patterns, and color differences are prone to appear when viewed from different angles

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