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Amoled display panel and preparation method thereof

A technology for display panels and substrates, applied in the fields of semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve the problems of low yield and high cost, and achieve the effect of improving yield, reducing height, and facilitating thinning

Active Publication Date: 2019-11-01
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It is found in practical application that the preparation method of the above-mentioned display substrate: there are many process steps, so the process time and cost are high and the yield rate is low.

Method used

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  • Amoled display panel and preparation method thereof
  • Amoled display panel and preparation method thereof
  • Amoled display panel and preparation method thereof

Examples

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Effect test

Embodiment 1

[0042] An embodiment of the present invention provides a method for preparing an AMOLED display panel, comprising the following steps:

[0043] S1, providing a substrate. Wherein, the substrate is preferably but not limited to a transparent substrate.

[0044] S2, preparing the shielding metal part and the anode on the same layer on the substrate. Wherein, the shielding metal part is used to shield the external light signal from illuminating the active layer through the substrate; the anode serves as an electrode of the OLED light-emitting device.

[0045] S3, preparing a TFT structure on a substrate with a shielding metal part and an anode, the TFT structure includes an active layer, a gate insulating layer, a gate, a source and a drain, and the drain is electrically connected to the anode. In this embodiment, the TFT structure is a top-gate structure, of course, the TFT structure in the present invention can also be a bottom-gate structure; the gate insulating layer is loc...

Embodiment 2

[0069] see Figure 2h , the embodiment of the present invention also provides an AMOLED display panel, including a substrate 20; on the same layer of the substrate 20, a shielding metal part 21 and an anode 22 are arranged; on the substrate 20 having the shielding metal part 21 and the anode 22, a TFT is arranged structure, the TFT structure includes an active layer 40, a gate insulating layer 50, a gate 60, a source S and a drain D; the drain D is electrically connected to the anode 22; an organic light-emitting layer 100 is arranged on a substrate 20 having a TFT structure and the cathode 110 , the organic light emitting layer 100 is located between the anode 22 and the cathode 110 and connected to the anode 22 and the cathode 110 .

[0070] In the AMOLED display panel provided by the embodiment of the present invention, since the shielding metal part 21 and the anode 22 are provided on the same layer on the substrate, the shielding metal part 21 and the anode 22 can be form...

Embodiment 3

[0081] An embodiment of the present invention further provides an AMOLED display device, including the AMOLED display panel provided in the above embodiment.

[0082] It should be noted that the display device may also include other auxiliary structures such as supports.

[0083] The AMOLED display device provided by the embodiment of the present invention adopts the AMOLED display panel provided by the above-mentioned embodiment 2, so it not only saves the process time, reduces the cost and improves the yield; but also can reduce the height of the display panel, which is beneficial to the display substrate. thinning.

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Abstract

The present invention provides an AMOLED display panel, comprising a substrate; on the same layer of the substrate, a shielding metal part and an anode are arranged; on the substrate having the shielding metal part and the anode, a TFT structure is arranged, and the TFT structure includes active layer, gate insulating layer, gate, source and drain; the drain is electrically connected to the anode; an organic light-emitting layer and a cathode are arranged on a substrate with a TFT structure, and the organic light-emitting layer is located on the between the anode and the cathode and connected to the anode and the cathode. The invention also provides a preparation method of the AMOLED display panel. It not only saves process time, reduces costs and improves the yield rate; but also can reduce the height of the display panel, thereby facilitating the thinning of the display substrate.

Description

technical field [0001] The invention belongs to the technical field of display device processing, and in particular relates to an AMOLED display panel and a preparation method thereof. Background technique [0002] Oxide TFT with top gate structure has lower parasitic capacitance and better electrical characteristics, so it is considered as the preferred backplane technology solution for large-size and high-resolution AMOLED display panels; and, the top of AMOLED display panels The light-emitting solution is regarded as the inevitable development direction of large-size and high-resolution displays in the future. Therefore, combining the oxide TFT with a top-gate structure and the top-emitting solution can produce a better large-size AMOLED display panel. Small size AMOLED display panels are not only developing towards the direction of high reliability, high resolution, high color gamut and many other advantages. [0003] TFTs produced by top-gate self-alignment technology ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L27/32
CPCH10K59/126H10K59/131H10K50/11H10K59/1201H10K59/805H10K59/1213H10K50/82H10K50/805H10K50/818H10K59/122H10K71/00
Inventor 刘威
Owner BOE TECH GRP CO LTD
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