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Display device, OLED panel thereof and manufacturing method of OLED panel

A manufacturing method and panel technology, which are applied in semiconductor/solid-state device manufacturing, organic semiconductor devices, electrical components, etc., can solve the problems of inability to meet the flatness requirements of OLED panels, high level difference, etc., to improve the flatness effect, quality, and brightness. The effect of uniformity

Active Publication Date: 2020-03-17
BOE TECH GRP CO LTD
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Problems solved by technology

However, for large or super-large sizes, the metal wires require very small resistance, that is, a very thick film layer is required. In this way, the overlap of multiple layers of metal conductors in the pixel circuit will cause a high level difference. Use ordinary flat film It cannot meet the flat requirements of OLED panels

Method used

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  • Display device, OLED panel thereof and manufacturing method of OLED panel
  • Display device, OLED panel thereof and manufacturing method of OLED panel
  • Display device, OLED panel thereof and manufacturing method of OLED panel

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[0080] 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.

[0081] figure 1 It is a top view of an OLED panel according to an embodiment of the present invention; wherein, the metal interconnection layer is removed in the P region. figure 2 and image 3 is along figure 1 Sectional view of line AA and line BB; among them, figure 2 In , the thickness of the insulating layer is equal everywhere, image 3 , the thickness of the insulating layer in the...

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Abstract

The invention provides a display device, an OLED panel thereof and a manufacturing method of the OLED panel. The OLED panel comprises a substrate and a light-emitting structure located on the substrate. A plurality of film layers and a planarization layer positioned on the plurality of film layers are arranged between the substrate and the light-emitting structure, an interface between the plurality of film layers and the planarization layer comprises a first region and a second region, and the first region at least comprises a region where a source electrode and a drain electrode of a transistor are located. The film layers comprise insulating layers, and the thickness of the insulating layers in the first area is smaller than that of the insulating layers in the second area. According tothe embodiment of the invention, the global flatness degree of the plurality of film layers is improved, so that the flattening effect of the flattening layer is improved, and the quality of the organic light-emitting layer and the brightness uniformity of each sub-pixel are further improved.

Description

technical field [0001] The invention relates to the technical field of display devices, in particular to a display device, an OLED panel, and a method for manufacturing the OLED panel. Background technique [0002] Top-emitting OLED display technology has the advantages of high lifespan and high PPI, and this technology has become the mainstream direction of the OLED industry. Whether it is a small and medium-sized mobile phone screen that has been commercialized, or a large-sized TV that is in technology research and development, top emission is a very advantageous technical direction for OLED panels. [0003] However, the top emission requires a high flatness of the substrate of the OLED panel, otherwise the optical characteristics of the OLED light-emitting structure will be affected, such as color cast, or even partial dimming. In a small size, since the film layer of the backplane is relatively thin, the flatness requirements of the OLED panel can be met by using a gen...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L27/12H01L51/56
CPCH01L27/1248H10K59/124H10K59/131H10K59/8792H10K2102/351H10K50/844H10K50/865H10K71/00H10K59/1201
Inventor 徐攀林奕呈王玲王国英张星韩影
Owner BOE TECH GRP CO LTD
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