Display substrate and preparation method thereof, and display panel

A display substrate and substrate technology, applied in static indicators, semiconductor/solid-state device manufacturing, instruments, etc., can solve problems such as poor display screen, mutual separation, short circuit of metal layer, etc., to improve display effect, increase bonding strength, Avoid the effect of white spots

Active Publication Date: 2021-11-30
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The layer structure used to form pixel circuits and signal lines includes multiple metal layers and insulating layers between the metal layers. For the insulating layer, patterning is not required. Therefore, superimposed layers are formed in some areas of the display substrate. There are multiple layers of insulating layers, and the thickness of the multi-layer insulating layers is generally thin, and the problem of mutual separation (Peeling) is prone to occur between two adjacent layers of insulating layers, thus causing a short circuit at the overlap between the metal layers, causing the display bad picture

Method used

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  • Display substrate and preparation method thereof, and display panel
  • Display substrate and preparation method thereof, and display panel
  • Display substrate and preparation method thereof, and display panel

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Embodiment Construction

[0040] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0041] A structure of pixel units is usually arranged on the display substrate. For example, for a display substrate applied in an OLED display panel, OLED devices, pixel circuits, signal lines, etc. are arranged on the display substrate.

[0042] The display substrate usually includes a plurality of OLED devices arranged in a matrix, and a pixel circuit is arranged corresponding to each OLED de...

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Abstract

The invention discloses a display substrate, a preparation method thereof, and a display panel. The display substrate comprises: a base substrate; a first insulating layer and a second insulating layer are arranged on the base substrate, wherein the first insulating The film stress direction of the layer is the same as the film stress direction of the second insulating layer. The display substrate is beneficial to improve the display uniformity of the image, avoid display defects such as white spots, and improve the display effect of the display image.

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 panel. Background technique [0002] Organic light-emitting diodes (OLEDs, OLEDs) are self-luminous devices, and a display panel may use an OLED device as a light-emitting element to form an OLED display panel. [0003] Active-matrix organic light emitting diode AMOLED (Active-matrix organic light emitting diode, AMOLED for short) display panel has the advantages of wide viewing angle and low power consumption. [0004] The AMOLED display panel includes a display substrate on which OLED devices, pixel circuits, signal lines, etc. are formed, and the pixel circuits are used to drive the OLED devices to emit light. [0005] The layer structure used to form pixel circuits and signal lines includes multiple metal layers and insulating layers between the metal layers. For the insulating layer, patterning is not require...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/12H01L21/77H01L27/32
CPCH01L27/1248H01L27/1259H10K59/124H10K59/1216H10K59/1213G09G3/3225H10K50/15H10K50/805H10K59/12
Inventor 彭利满吴岩刘祺
Owner BOE TECH GRP CO LTD
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