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Display substrate and preparation method thereof and display device

A technology for display substrates and flexible substrates, applied in semiconductor/solid-state device manufacturing, electrical components, electric solid-state devices, etc., can solve problems such as unstable light emission

Active Publication Date: 2019-10-01
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a display substrate and its preparation method, and a display device, so as to solve the problem of unstable light emission in existing display devices

Method used

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  • Display substrate and preparation method thereof and display device
  • Display substrate and preparation method thereof and display device
  • Display substrate and preparation method thereof and display device

Examples

Experimental program
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no. 1 example

[0051] figure 1 A schematic structural diagram of a substrate is shown for an embodiment of the present invention. Such as figure 1 As shown, the main structure of the display substrate in this embodiment includes a flexible substrate 10, a buffer layer 11 disposed on the flexible substrate 10, and an array structure layer disposed on the buffer layer 11, the array structure layer includes a plurality of thin film transistors, figure 1 Only one thin film transistor is illustrated. Wherein, the thin film transistor includes an active layer 12 , a gate electrode 14 , a source electrode 16 and a drain electrode 17 . In this embodiment, the substrate further includes a reinforcement layer 20 , which is embedded in the flexible substrate 10 in a plane perpendicular to the flexible substrate 10 , and the surface of the reinforcement layer 20 is flush with the surface of the flexible substrate 10 . In a plane parallel to the flexible substrate 10, the position of the reinforcement...

no. 2 example

[0077] Based on the technical concept of the present invention, the embodiment of the present invention also provides a method for preparing a display substrate. The embodiment of the present invention shows that the preparation method of the substrate includes:

[0078] S1, forming a flexible substrate embedded with a strengthening layer;

[0079] S2. Forming a thin film transistor on the flexible substrate, so that the position of the strengthening layer corresponds to the position of the channel region of the thin film transistor, so as to improve the deformation resistance of the channel region of the thin film transistor.

[0080] Wherein, step S1 includes:

[0081] S11, forming an incompletely cross-linked flexible film on the glass carrier;

[0082] S12. Opening grooves on the incompletely crosslinked flexible film, the depth of the grooves being 30% to 50% of the thickness of the incompletely crosslinked flexible film;

[0083] S13, forming an incompletely crosslink...

no. 3 example

[0095] An embodiment of the present invention also provides a display device, which includes the display substrate of the foregoing embodiment. The display device can be any product or component with a display function such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, and the like.

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Abstract

The embodiment of the invention provides a display substrate and a preparation method thereof and a display device. The display substrate includes a flexible base and a thin film transistor arranged on the flexible base. The flexible base is embedded with a strengthening layer of which the position corresponds to that of the channel region of the thin film transistor, and the strengthening layer is used to improve the anti-deformation ability of the channel region of the thin film transistor. By embedding the strengthening layer of which the position corresponds to that of the channel region of the thin film transistor onto the base, the anti-deformation ability of the channel region of the thin film transistor is improved, the deformation of the channel region of the thin film transistorcan be reduced or even eliminated when the substrate is bent, the influence of excessive deformation of the channel region of the thin film transistor on the electrical parameters of the thin film transistor is avoided, the light-emitting stability is ensured, the display quality is improved, and the problem of light-emitting instability in the existing display device is solved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display substrate, a preparation method thereof, and a display device. Background technique [0002] With the development of display technology, liquid crystal display devices (Liquid Crystal Display, LCD) are widely used in mobile phones, televisions, personal digital assistants, digital Various consumer electronic products such as cameras, notebook computers, and desktop computers have become the mainstream of display devices. In recent years, Organic Light Emitting Diode (OLED), as an emerging flat-panel display device, has self-illumination, low driving voltage, high luminous efficiency, short response time, high definition and contrast, nearly 180 ° viewing angle, wide operating temperature range, lighter and thinner, flexible display and large-area full-color display, etc., have attracted more attention in the current display market, and are recognized by the industry a...

Claims

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Application Information

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IPC IPC(8): H01L27/12H01L21/77
CPCH01L27/1218H01L27/1262
Inventor 占建英张慧文张亮
Owner BOE TECH GRP CO LTD
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