Flexible display substrate, preparation method thereof, and display device

A flexible display and substrate technology, applied in the semiconductor field, can solve the problems of low luminous efficiency, influence of the electrical characteristics of the display, electrons cannot easily find holes, etc., to achieve the effect of expanding the application field and improving the luminous efficiency

Active Publication Date: 2020-02-04
BEIJING BOE DISPLAY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Conventional flexible displays use various types of atomic layer stacked double or multilayer materials as the electron injection layer and hole injection layer. However, when the flexible display is twisted, the electrons and electrons in these double or multilayer materials Holes exist in different atomic layers, so that electrons cannot easily find holes, resulting in very low luminous efficiency, and the electrical characteristics of the display will also be affected

Method used

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  • Flexible display substrate, preparation method thereof, and display device
  • Flexible display substrate, preparation method thereof, and display device
  • Flexible display substrate, preparation method thereof, and display device

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Embodiment Construction

[0047] The technical solutions of the present invention will be further described below according to specific embodiments. The protection scope of the present invention is not limited to the following examples, which are listed for illustrative purposes only and do not limit the present invention in any way.

[0048] It should be understood that the drawings disclosed herein are not necessarily drawn according to the scale of actual devices and components. The shapes and thicknesses of the embodiments may be exaggerated in the drawings in order to clearly represent the features of the embodiments of the present disclosure. In addition, the structures and devices in the drawings are shown schematically in order to clearly show the features of the embodiments of the present disclosure.

[0049] figure 1 It is a schematic structural diagram of a flexible display substrate according to an embodiment of the present invention, such as figure 1 As shown, the flexible display subst...

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Abstract

The invention provides a flexible display substrate, a preparation method thereof, and a display device. The flexible display substrate has a plurality of light-emitting units, and the light-emitting unit includes: an anode; a rhenium disulfide hole injection layer arranged on the anode; a light-emitting layer arranged on the rhenium disulfide hole injection layer; a single layer The molybdenum disulfide electron injection layer is arranged on the light emitting layer; and the cathode is arranged on the molybdenum disulfide electron injection layer. The flexible display substrate of the present invention uses rhenium disulfide and a single layer of molybdenum disulfide as the carrier injection layer, which not only improves the luminous efficiency, but also keeps the electrical and optical properties basically unchanged while being twisted and stretched at will. Therefore, the application field of the flexible display device is expanded.

Description

technical field [0001] The invention relates to the field of semiconductors, in particular to a flexible display substrate, a preparation method thereof, and a display device. Background technique [0002] OLED (Organic Light Emitting Diode) is an organic electroluminescent device that emits light by sandwiching an organic light-emitting material between the anode and the cathode, and applying a voltage to the organic film. It can be used as both a display device and a lighting fixtures. [0003] The current OLED process is to make ITO (anode), hole injection layer, hole transport layer, electron blocking layer, light emitting layer, hole blocking layer, electron transport layer, electron injection layer and other film layers on the glass substrate. In order to increase the adhesion between the electrode and the transport layer, increase the carrier injection contact, and balance the injection of electrons and holes, so that electrons and holes can recombine well in the lig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/54H01L51/56H01L27/32
CPCH10K59/12H10K50/171H10K50/17H10K2102/00H10K2102/311H10K71/00Y02E10/549Y02P70/50H10K85/1135H10K77/111G09F9/301H01L33/40H10K50/11H10K50/81H10K50/82
Inventor 李砚秋
Owner BEIJING BOE DISPLAY TECH CO LTD
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