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OLED device and its manufacturing method and display

A technology of devices and device layers, applied in the field of OLED devices and their preparation methods and displays, can solve the problems of pixel shrinkage and impact on service life, and achieve the effects of solving pixel shrinkage, prolonging service life, and avoiding gas leakage

Active Publication Date: 2017-09-05
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide an OLED device and its preparation method and display for the problem that the traditional OLED device is prone to pixel shrinkage and affects its service life.

Method used

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  • OLED device and its manufacturing method and display
  • OLED device and its manufacturing method and display
  • OLED device and its manufacturing method and display

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Embodiment Construction

[0029] In order to make the technical solution of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] First of all, it should be noted that the functional layer refers to a TFT (Thin Film Transistor, thin film transistor) layer formed on the substrate. Specifically, it may include a gate, a source, a drain, an active layer, and the like. It may also include a planarization layer, a pixel definition layer, and support or spacer posts.

[0031] The OLED device layer specifically includes a first organic layer and a cathode formed sequentially on the first water-absorbing layer. Typically, it may also include a second organic layer formed on the cathode.

[0032] Among them, see figure 1 , as a specific embodiment of the OLED device 100 of the present invention, that is, Embodiment 1, it includes a substrate 110, a functional layer 120 formed on the subst...

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Abstract

The invention discloses an OLED device, a preparation method thereof and a display, wherein the OLED device comprises: a substrate; a functional layer, the functional layer is formed on the substrate; a first water-absorbing layer, the first water-absorbing layer is formed on the functional layer and covers the functional layer Positions other than the light-emitting area; the OLED device layer, the OLED device layer is formed on the first water-absorbing layer and on the functional layer not covered by the first water-absorbing layer. By adding the first water-absorbing layer between the functional layer of the OLED device and the OLED device layer, it effectively avoids the occurrence of outgassing during the subsequent evaporation of organic materials due to water vapor or sol residue caused in the previous production process. Finally, it effectively solves the problem of pixel shrinkage caused by non-encapsulation of traditional OLED devices, which affects its service life.

Description

technical field [0001] The invention relates to the field of organic light-emitting displays, in particular to an OLED device, a preparation method thereof, and a display. Background technique [0002] At present, organic glue is used in the production process of OLED (Organic Light-Emitting, also known as organic light-emitting diode). Such as: PMOLED (Passive matrix OLED, passive organic light-emitting diode) and AMOLED (Active-Matrix Organic Light-Emitting, active matrix organic light-emitting diode, also known as active organic light-emitting display) in the pixel definition layer, isolation column and other functional layers preparation. Among them, since the TFT (thin film transistor) substrate in the AMOLED mostly adopts the LTPS (Low Temperature Poly-silicon low temperature polysilicon) substrate. In the production process of the LTPS substrate, organic glue is usually required to prepare the planarization layer, pixel definition layer and isolation pillars or supp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/52H01L51/56H01L27/32
CPCH10K59/00H10K50/00H10K50/80H10K50/846H10K71/00
Inventor 向桂华甘帅燕朱修剑
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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