Display panel, manufacturing method thereof, and display device

A technology for a display panel and a manufacturing method, which is applied in the field of display panels and display devices, and can solve the problems of poor contact and disconnection between metal lines and semiconductor layers, and achieve the effects of not being easy to break and slowing down the steepness

Inactive Publication Date: 2019-05-14
HKC CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the manufacturing process of the thin-film transistor with bottom gate structure, when the metal line overlaps with the semiconductor layer, it is easy to have poor contact or even disconnection.

Method used

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  • Display panel, manufacturing method thereof, and display device
  • Display panel, manufacturing method thereof, and display device
  • Display panel, manufacturing method thereof, and display device

Examples

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Embodiment Construction

[0040] It should be understood that the terminology used and specific structural and functional details disclosed herein are merely representative for describing specific embodiments, but the invention may be embodied in many alternative forms and should not be construed as merely Be limited by the examples set forth herein.

[0041] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating relative importance, or implicitly indicating the quantity of indicated technical features. Therefore, unless otherwise specified, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features; "plurality" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, possible presence or addition of one or more other features, integers, steps, operations, units, components and / or combinations thereof.

[0042]...

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PUM

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Abstract

The invention discloses a display panel, a manufacturing method thereof, and a display device. The display panel comprises a substrate, a buffer layer formed on the substrate, a semiconductor layer formed on the buffer layer, a gate insulation layer, a gate metal layer formed on the gate insulation layer, and medium layers, wherein the semiconductor layer comprises a source electrode area, a drainelectrode area and a channel area, the channel area is arranged between the source electrode area and the drain electrode area, the gate insulation layer is formed on the position, corresponding to the channel area, of the semiconductor layer, and the buffer layer, the semiconductor layer and the gate metal layer are covered with the medium layers; the medium layers corresponding to the source electrode area and the drain electrode area comprise passing holes correspondingly, the passing holes comprise first passing holes and second passing holes, the first passing holes are connected with the source electrode area or the drain electrode area, the second passing holes are located in the tops of the first passing holes and communicate with the first passing holes, and the hole diameters ofthe second passing holes is greater than that of the first passing holes. According to the display panel, by forming two lap joint holes with different sizes, the gradient of the passing holes is reduced during lap joint of metal wires, and the wires are not prone to breaking.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel, a method for manufacturing the display panel, and a display device. Background technique [0002] In the field of display technology, flat panel display devices are widely used in mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, desktop computers, etc. Various consumer electronic products have become the mainstream of display devices. Thin Film Transistor (TFT) is the main driving element in Liquid Crystal Display (LCD) and Active Matrix Organic Light Emitting Diode (AMOLED), and is directly related to the development of high-performance flat panel display devices. direction. [0003] During the manufacturing process of the thin-film transistor with the bottom gate structure, when the metal line overlaps with the semiconductor layer, it is easy to have poor contact or even disconnection. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/12H01L21/77
CPCH01L29/41733H01L27/1259H01L27/1248H01L29/7869H01L27/1244H01L29/401
Inventor 张合静
Owner HKC CORP LTD
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