Unlock instant, AI-driven research and patent intelligence for your innovation.

Display substrate based on electroluminescence device, its preparation method, and display device

A technology of electroluminescent devices and display substrates, which is applied in the fields of electric solid-state devices, semiconductor/solid-state device manufacturing, electrical components, etc., can solve problems such as low transmittance and poor luminous efficiency, and achieve improved performance, simplified structure, and simple The effect formed

Active Publication Date: 2021-01-22
BOE TECH GRP CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The inventors found that the current transparent display substrates based on electroluminescent devices generally have problems such as low transmittance and poor luminous efficiency.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Display substrate based on electroluminescence device, its preparation method, and display device
  • Display substrate based on electroluminescence device, its preparation method, and display device
  • Display substrate based on electroluminescence device, its preparation method, and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0031] In one aspect of the invention, the invention proposes a display substrate based on electroluminescent devices. According to an embodiment of the present invention, refer to figure 1, the display substrate includes: a substrate 100 , an electroluminescent device 200 , a thin film transistor 300 , a conductive layer 500 and a pixel defining structure 600 . According to an embodiment of the present invention, an electroluminescent device 200 , a pixel defining structure 600 and a thin film transistor 300 for controlling the electro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a display substrate based on an electroluminescence device, a preparation method thereof, and a display device. The display substrate includes: a substrate on which an electroluminescent device, a pixel defining structure and a thin film transistor for controlling the electroluminescent device are arranged; a conductive layer connected to electrodes of the electroluminescent device is arranged on the substrate, The conductive layer is overlapped with the active layer of the thin film transistor, and the overlapped area is covered by the pixel defining structure. Therefore, the display substrate can avoid the electrical connection between the electroluminescent device and the thin film transistor by etching via holes (casing holes), so that the production process can be simplified on the one hand, and on the other hand, it can also be made by relying on the overlapping method. The overlapping area has a higher transmittance, and the overall transparency of the display substrate is improved; and the display substrate has a large aperture ratio, a large light-emitting area, and high luminous efficiency, which can take into account both transmittance and luminous efficiency, and further enhance the product market. Competitiveness.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display substrate based on an electroluminescent device, a preparation method thereof, and a display device. Background technique [0002] As an important member of flat-panel displays, electroluminescent devices have gained a lot of attention in the display field due to their advantages such as light weight, low cost, wide viewing angle, fast response speed, active luminescence, high luminous brightness and luminous efficiency, and full-color display. favored by developers. Among them, inorganic electroluminescent display (Electroluminescent, EL) and organic electroluminescent display (Organic Light Emitting Display, OLED), as typical representatives, have been widely used in the information display industry. For example, small and medium-sized OLED display devices widely used in portable devices such as mobile phones and Pads, and large-sized OLED display devices used in te...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/12H01L27/32H01L51/52H01L21/84
CPCH01L27/1222H01L27/127H10K59/122H10K59/1213H10K59/131H10K59/1201H10K59/80518H10K59/123H10K59/1216H10K50/11H10K59/38
Inventor 王国英宋振
Owner BOE TECH GRP CO LTD