Light-emitting substrate and preparation method thereof

A technology for substrates and light-emitting devices, which is used in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve problems such as affecting the light efficiency of light-emitting devices, and achieve the effect of avoiding crosstalk of light and improving light-emitting effect.

CN114744007APending Publication Date: 2022-07-12BOE TECH GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2022-07-12

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Abstract

The invention relates to a light-emitting substrate and a preparation method thereof. The light-emitting substrate comprises a substrate body, and a plurality of light-emitting devices are arranged on the substrate body at intervals. A first shading structure is arranged in a gap between the light-emitting devices, and the first shading structure is used for shading light emitted by the light-emitting devices in the side direction; the first shading structure and the light-emitting device are not overlapped in the target light-emitting direction of the light-emitting device, or the overlapping area of the first shading structure and the light-emitting device in the target light-emitting direction of the light-emitting device is smaller than a set value. The first shading structure is arranged at the gap between the light-emitting devices, so that light emitted by the light-emitting devices in the lateral direction can be shaded, and light crosstalk caused by the fact that the part of light irradiates other light-emitting devices is avoided. Moreover, the light emitted by the light-emitting device towards the target light-emitting direction is not shielded or completely shielded, and the adverse effect on the lighting effect of the light-emitting device is improved or eliminated, so that the light-emitting effect of the light-emitting surface of the light-emitting substrate can be improved.
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Description

technical field

[0001] The present invention relates to the technical field of light-emitting devices, and in particular, to a light-emitting substrate and a preparation method thereof. Background technique

[0002] Light-Emitting Diode (LED for short) is the current mainstream light-emitting device and has a wide range of uses. For example, LEDs can be used as light-emitting devices in the backlight of liquid crystal display devices, and smaller-sized LED devices, such as Micro LEDs and Mini LEDs, can also be directly used for display.

[0003] At present, in devices using LEDs as light-emitting devices, a plurality of LED arrays are generally arranged. When the gap between the plurality of LEDs is small, the light emitted laterally by each LED will be mixed with the light emitted by other LEDs. together, resulting in significant optical crosstalk. In order to solve this problem in the prior art, a layer of black glue is provided, and the black glue fills the gaps between...

Examples

Embodiment Construction

[0080] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0081] Embodiments of the light-emitting substrate provided by the present invention and the preparation method thereof will be described below with reference to the accompanying drawings.

[0082] In one embodiment of the light-emitting substrate of the present invention, see figure 1 and figure 2 , the light-emitting substrate includes ...