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Electroluminescent device based display substrate, preparation method thereof and display device

A technology for electroluminescent devices and display substrates, which is applied in the fields of electric solid-state devices, semiconductor/solid-state device manufacturing, and electrical components. The effect formed

Active Publication Date: 2019-02-01
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

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  • Electroluminescent device based display substrate, preparation method thereof and display device
  • Electroluminescent device based display substrate, preparation method thereof and display device
  • Electroluminescent device based display substrate, preparation method thereof and display device

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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...

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Abstract

The invention discloses an electroluminescent device based display substrate, a preparation method thereof and a display device. The display substrate comprises a substrate body, the substrate body isprovided with an electroluminescent device, a pixel definition structure and a thin film transistor for controlling the electroluminescent device, the substrate body is further provided with a conducting layer connected with an electrode of the electroluminescent device, the conducting layer is overlapped with an active layer of the thin film transistor, and the overlapped area is covered with the pixel definition structure. Thus, the display substrate can realize electric connection between the electroluminescent device and the thin film transistor needless of a through hole etching or trepanning manner, the production technology can be simplified, the overlapped area has a higher transmittance by means of the overlapping manner, and the total transparent degree of the display substrateis improved; and an aperture ratio of the display substrate is large, the luminescent area is large, the luminescent efficiency is high, both the transmittance and luminescence efficiency can be takeninto consideration, and the product is more competitive in the market.

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

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Application Information

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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
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