Light-emitting substrate and preparation method thereof and light-emitting device
A technology for substrates and light-emitting devices, applied in the field of lighting and display, can solve the problems of affecting and losing the performance of light-emitting devices, and achieve the effects of preventing loss, good thermal stability and chemical stability
Active Publication Date: 2022-01-04
BOE TECH GRP CO LTD +1
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Problems solved by technology
It is used to solve the problem that the loss of the quantum dot luminescent material in the quantum dot luminescent pattern in the related art affects the performance of the light emitting device
Method used
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[0072] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0073] Hereinafter, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present invention, unless otherwise specified, "plurality" means two o...
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Abstract
The invention relates to the technical field of illumination and display, in particular to a light-emitting substrate and a preparation method thereof and a light-emitting devic, and aims to solve the problem that loss of a quantum dot light-emitting material in a quantum dot light-emitting pattern affects the performance of a light-emitting device in the prior art. The light-emitting substrate comprises a substrate, a pixel defining layer and a plurality of light-emitting devices, wherein the pixel defining layer and the light-emitting devices are arranged on the substrate, the pixel defining layer is provided with a plurality of openings, each light-emitting device comprises a quantum dot light-emitting pattern arranged in one opening, each opening is provided with a side wall, the side wall comprises a first part and a second part, the first part is the part, in contact with the quantum dot light-emitting pattern, of the side wall, the second part is the part, away from the substrate, of the side wall relative to the first part, the light-emitting substrate further comprises at least one blocking unit, each blocking unit comprises at least one siloxane chain segment, each siloxane chain segment comprises at least one silicon-oxygen bond, and at least one siloxane segment is grafted to the second part of one of the sidewalls.
Description
technical field [0001] The invention relates to the technical field of illumination and display, in particular to a light-emitting substrate, a preparation method thereof, and a light-emitting device. Background technique [0002] Compared with OLED (Organic Light-Emitting Diode, organic light-emitting diode) light-emitting devices, QLED (Quantum Dot Light Emitting Diodes, quantum dot light-emitting diodes) light-emitting devices have higher theoretical luminous efficiency, adjustable color, wider color gamut, Better color saturation and vividness, lower energy costs and other advantages. Contents of the invention [0003] The main purpose of the present invention is to provide a light-emitting substrate, a preparation method thereof, and a light-emitting device. The invention is used to solve the problem that the loss of the quantum dot luminescent material in the quantum dot luminescent pattern affects the performance of the light emitting device in the related art. ...
Claims
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IPC IPC(8): H01L51/52H01L51/56H01L27/32H01L21/77
CPCH10K59/122H10K59/1201H10K71/00H01L21/77H10K50/115H10K50/16H10K85/40
Inventor 张爱迪
Owner BOE TECH GRP CO LTD