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Flexible display device, manufacturing method, and electronic device

A flexible display device and encapsulation layer technology, which is applied in the direction of circuits, electrical components, and electric solid devices, can solve problems such as screen faults or layers, and overall uneven display effects

Active Publication Date: 2019-05-17
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a flexible display device, a preparation method and an electronic device for the problem that the screen body of a traditional flexible display device is prone to faults or layers and the overall display effect is uneven.

Method used

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  • Flexible display device, manufacturing method, and electronic device
  • Flexible display device, manufacturing method, and electronic device
  • Flexible display device, manufacturing method, and electronic device

Examples

Experimental program
Comparison scheme
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preparation example Construction

[0080] As a specific embodiment of the flexible display device manufacturing method of the present invention, it includes the following steps:

[0081] First, through step S100, a PI layer is prepared on the surface of the pretreated substrate. Wherein, the substrate may be a glass substrate. At the same time, the pretreatment of the substrate is specifically cleaning the substrate, which may specifically be cleaned by ultrasonic waves. In addition, when the PI layer is prepared on the surface of the cleaned substrate, it can be prepared by a spin coating process. Then, through step S200, a substrate layer is formed on the surface of the PI layer. Wherein, the preparation of the substrate layer may adopt a CVD (Chemical Vapor Deposition, chemical vapor deposition) process. Furthermore, in step S300, a TFT layer is formed on the surface of the substrate layer. Wherein, the preparation of the TFT layer can adopt CVD process, sputter deposition (Sputter) process, yellow light...

Embodiment 1

[0089] This embodiment is a preparation process when the protective film is formed on the periphery of the flexible display device through the preparation process. specific:

[0090] First, the glass substrate is cleaned and pretreated. Then, a PI layer was prepared and formed on the glass substrate by a spin-coating process. Then prepare and form a protective film on the PI layer. Furthermore, a BL layer is formed on the protective film by using a CVD process. Further, the TFT structural part and the anode part are sequentially prepared on the surface of the BL layer. Among them, the preparation process of the TFT structure part and the anode part is mainly CVD / Sputter, yellow light, etching, etc.

[0091] Further, the OLED layer is prepared. Specifically, firstly, a hole injection layer (HIL) is prepared on the surface of the anode layer. Wherein, the hole injection layer is made of an organic material, which is made by evaporation, and the hole injection layer is the ...

Embodiment 2

[0094] This embodiment is a preparation process when the protective film is formed on the periphery of the flexible display device by bonding.

[0095] specific:

[0096] First, the glass substrate is cleaned and pretreated. Then, a PI layer was prepared and formed on the glass substrate by a spin-coating process. Furthermore, a BL layer is formed on the protective film by using a CVD process. Further, the TFT structural part and the anode part are sequentially prepared on the surface of the BL layer. Among them, the preparation process of the TFT structure part and the anode part is mainly CVD / Sputter, yellow light, etching, etc.

[0097] Further, the OLED layer is prepared. Specifically, firstly, a hole injection layer (HIL) is prepared on the surface of the anode layer. Wherein, the hole injection layer is made of an organic material, which is made by evaporation, and the hole injection layer is the main carrier of holes. Then, a hole transport layer (HIL) was prepare...

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Abstract

The invention discloses a flexible display device, a preparation method and electronic equipment, wherein the flexible display device comprises: a substrate layer; a TFT layer formed on the substrate layer; an anode layer formed on the TFT layer; an OLED layer formed on the anode layer On; the cathode layer, formed on the OLED layer and the substrate layer not covered by the OLED layer; the encapsulation layer, formed on the cathode layer and the substrate layer not covered by the cathode layer, and forming a coating with the cathode layer and the substrate layer Space; also includes a protective film that deforms with the bending of the flexible display device; the protective film is formed at least one of the following positions: the surface of the substrate layer away from the TFT layer, between the TFT layer and the anode layer, between the anode layer and the OLED layer Between, between the OLED layer and the cathode layer, between the cathode layer and the encapsulation layer, and the surface of the encapsulation layer away from the cathode layer. It effectively solves the problem of uneven overall display effect of the screen body of the traditional flexible display device.

Description

technical field [0001] The invention relates to the technical field of displays, in particular to a flexible display device, a preparation method and electronic equipment. Background technique [0002] At present, AMOLED (Active-matrix organic light-emitting diode, active-matrix organic light-emitting diode), as a new type of display, has high chromaticity, high contrast, wide viewing angle, high brightness, self-illumination, fast response, and It has been widely used in electronic devices such as mobile phones and media players to realize the characteristics of flexible display. [0003] Among them, the flexible display device realized by AMOLED has the advantages of being able to maintain the unfolded state for easy operation when working, keep the curled state for easy carrying when storing, and can also be hung on the body to present a wearable state, making it widely concerned. However, when the traditional flexible display device is applied to flexible display occasi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/52H01L51/56
CPCH10K59/12H10K50/844H10K71/00
Inventor 丁立薇张婷婷朱晖张小宝
Owner KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT