Array substrate and preparation method thereof

A technology of array substrate and base substrate, which is applied in the field of array substrate and its preparation, can solve problems such as the difficulty of embedding fingerprint recognition sensors, and achieve the effect of overcoming the inability to realize self-capacitive fingerprint recognition

Active Publication Date: 2020-09-08
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

OLED display panels (organic electroluminescent display panels) have a common electrode layer, which makes it difficult to embed self-capacitive fingerprint recognition sensors into OLED display panels

Method used

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  • Array substrate and preparation method thereof
  • Array substrate and preparation method thereof
  • Array substrate and preparation method thereof

Examples

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Embodiment Construction

[0076] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure.

[0077] In the drawings, the thicknesses of regions and layers may be exaggerated for clarity. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0078] The described features, structures, or characteristic...

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Abstract

The invention provides an array substrate and a preparation method thereof, and belongs to the technical field of display. The preparation method of the array substrate comprises the steps of: forminga driving circuit layer, a first electrode layer, a pixel defining layer, a first pattern definition layer and an organic light-emitting material layer sequentially on one side of a substrate, wherein the driving circuit layer comprises a first driving circuit and a second driving circuit, the first electrode layer comprises an adapter electrode electrically connected to the first driving circuitand a pixel electrode electrically connected to the second driving circuit, the pixel defining layer is provided with a connecting via hole, the connecting via hole exposes at least part of the adapter electrode, and the first pattern definition layer covers the connecting via hole; removing the first pattern definition layer to form a second pattern definition layer and a second electrode layersequentially, and making the second pattern definition layer surround the connecting via hole, wherein the second electrode layer comprises a common electrode and a fingerprint recognition electrode which are isolated. According to the preparation method of the array substrate, a self-capacitive fingerprint sensor is embedded into an OLED display panel.

Description

technical field [0001] The present disclosure relates to the field of display technology, in particular to an array substrate and a preparation method thereof. Background technique [0002] The self-capacitive fingerprint sensor (self-capacitive finger-print sensor) has the characteristics of high precision and good anti-noise performance. When the finger touches the fingerprint identification area, the ridges and valleys in the fingerprint form different capacitance values ​​with the fingerprint identification sensors, and the fingerprint pattern can be combined by detecting the detection signals of each fingerprint identification sensor. The OLED display panel (organic electroluminescence display panel) has a common electrode layer, which makes it difficult to embed the self-capacitive fingerprint recognition sensor into the OLED display panel. [0003] The above information disclosed in this Background section is only for enhancement of understanding of the background of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L27/12H01L51/52H01L51/56
CPCH01L27/1214H10K59/40H10K59/122H10K59/12H10K50/805H10K71/00H10K59/65H10K71/233H10K71/621H10K59/1201H10K59/805G06V40/1306
Inventor 赵梦
Owner BOE TECH GRP CO LTD
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