Organic electroluminescence device substrate, display device and manufacturing method

A technology of organic light-emitting devices and electroluminescent devices, which is applied in the direction of organic semiconductor devices, semiconductor/solid-state device manufacturing, electric solid-state devices, etc., can solve the problems of discontinuous cathode film layer and poor cathode overlap, and achieve high transmission The effect of rate and display effect

Active Publication Date: 2017-02-22
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At least one embodiment of the present invention provides an organic electroluminescent device substrate, a display device and a manufacturing method to solve the problem of poor cathode overlap and discontinuous cathode film caused by thinner cathodes

Method used

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  • Organic electroluminescence device substrate, display device and manufacturing method
  • Organic electroluminescence device substrate, display device and manufacturing method
  • Organic electroluminescence device substrate, display device and manufacturing method

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Embodiment 1

[0044] At least one embodiment of the present invention provides an organic electroluminescent device substrate, figure 2 It is a schematic structural view of the organic electroluminescent device substrate of at least one embodiment of the invention, such as figure 2 As shown, the organic electroluminescent device substrate of this embodiment may include a base substrate 1, a pixel defining layer 2 formed on the base substrate 1, and an organic light emitting diode formed in each pixel region defined by the pixel defining layer 2. device.

[0045] In this embodiment, the pixel defining layer 2 defines a plurality of pixel regions, which may be distributed in a matrix, and the plurality of pixel regions may be defined to emit light of the same or different colors. The pixel defining layer 2 has a top opening and a bottom opening corresponding to the opening area of ​​each pixel area in the thickness direction perpendicular to the base substrate 1, and the bottom opening is ...

Embodiment 2

[0051] At least one embodiment of the present invention provides an organic electroluminescent device substrate 200, Figure 3A It is a schematic structural diagram of a pixel defining layer of an organic electroluminescent device substrate 200 according to at least one embodiment of the present invention, Figure 3B for Figure 3A The cross-sectional schematic diagrams of different parts of , where, Figure 3B The sections shown in a-a', b-b', c-c', d-d', e-e' are respectively along Figure 3A Pixels at the cutting lines a-a', b-b', c-c'd-d', e-e' of , define layer cross-sections.

[0052] Such as Figure 3A and 3B As shown, the organic electroluminescent device substrate 200 of this embodiment includes a base substrate, a pixel defining layer 210 formed on the base substrate 1, and an organic light emitting device formed in each pixel region defined by the pixel defining layer 210 , only the anode of the organic light emitting device is shown in the figure. The pixel d...

Embodiment 3

[0068] At least one embodiment of the present invention provides an organic electroluminescent display device, such as Image 6 As shown, the organic electroluminescent device substrate 300 described in any one of the embodiments is included. The organic electroluminescent display device in this embodiment may further include an opposite substrate 400, which is disposed on the organic electroluminescent device substrate 300, and the two are sealed together by a sealant, for example. The opposite substrate 400 may include a glass substrate. In practical applications, the organic electroluminescence display device can be realized as a mobile phone, a television, a computer, an instrument panel, and the like.

[0069] Since the organic electroluminescent display device of this embodiment has the organic electroluminescent device substrate of the above-mentioned embodiment, its technical effect is the same, so details will not be repeated here.

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Abstract

The invention relates to an organic electroluminescence device substrate, a manufacturing method thereof, and a display device. An array substrate comprises a substrate base plate, a pixel defining layer and organic luminescent devices, wherein the pixel defining layer is formed on the substrate base plate; each of the organic luminescent devices is respectively formed in each pixel area; a plurality of pixel areas are defined by the pixel defining layer; top openings and bottom openings are formed in the pixel areas in the thickness direction vertical to the substrate base plate; the bottom openings are formed in the top openings, so that all the pixel areas have slopes from the top openings to the bottom openings; and the boundaries of the top openings of the adjacent pixel areas are intersected with each other. In the array substrate, better lapping can be achieved even if the electrodes of the organic luminescent devices, formed on the pixel defining layer, are in lower thickness, so that higher transmittance and display effect can be achieved.

Description

technical field [0001] Embodiments of the present invention relate to an organic electroluminescent device substrate, a display device and a manufacturing method. Background technique [0002] Organic Light Emitting Diode (OLED) has unique characteristics such as self-illumination, fast response, rich colors, wide viewing angle, and can be fabricated on flexible substrates. OLED-based displays are becoming the mainstream in the display field. [0003] The OLED display backplane includes an array substrate and an organic light-emitting device, and the organic light-emitting device includes an anode, an organic light-emitting layer, and a cathode. The array substrate includes a driving circuit formed using thin film transistors (TFTs). A pixel defining layer (Pixel Define Layer, PDL) is formed on the array substrate to separate each pixel area, and each pixel area is, for example, an opening, and an organic light emitting device is disposed in each opening. At present, the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L21/77
CPCH10K59/122H10K59/1201Y02E10/549Y02P70/50H10K59/352H10K77/10H10K50/8428H10K2102/3026H01L27/124H10K50/15H10K50/16H10K50/81H10K50/82H10K50/171H10K71/00H10K59/35
Inventor 张微
Owner BOE TECH GRP CO LTD
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