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Organic electroluminescent device and manufacturing method thereof

A manufacturing method and luminescent technology, which are applied in semiconductor/solid-state device manufacturing, electrical solid-state devices, electrical components, etc., can solve the problems of increased non-luminous area area, increased manufacturing cost, and loss of aperture ratio, achieving reduced area and uniform The effect of brightness distribution and high aperture ratio

Active Publication Date: 2014-01-22
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mesh mask in the conventional technology will lead to a serious loss of aperture ratio. There are two main reasons. One of the reasons is: the alignment of the mesh mask is difficult to be very accurate, which will easily lead to an increase in the area of ​​​​the non-luminous area; the other The reason is: in the mesh mask, the line width of the light-shielding pattern between adjacent openings should not be too small. If the line width is too small, the structural strength of the mesh mask will be reduced, the manufacturing cost will be greatly increased, and it will lead to The evaporation range is difficult to control (that is, adjacent evaporation areas will be adjacent to or even overlap each other), but if the line width is too large, the area of ​​the non-luminous area will increase, resulting in a serious loss of aperture ratio

Method used

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  • Organic electroluminescent device and manufacturing method thereof
  • Organic electroluminescent device and manufacturing method thereof
  • Organic electroluminescent device and manufacturing method thereof

Examples

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no. 1 example

[0042] Figure 1A to Figure 1F It is a schematic top view of the manufacturing process of an organic electroluminescent element according to an embodiment of the present invention, Figure 2A to Figure 2F for along Figure 1A to Figure 1F The cross-sectional schematic diagram drawn by the section line A-A', and Figure 3A to Figure 3F for along Figure 1A to Figure 1F The cross-sectional schematic diagram drawn by the section line B-B'.

[0043] Please also refer to Figure 1A , Figure 2A and Figure 3AFirstly, a substrate 110 is provided, and the substrate 110 has a single device configuration region R1 and a peripheral region R2 surrounding the device configuration region R1. In this embodiment, the material of the substrate 110 can be glass, quartz, organic polymer, or opaque / reflective materials (such as conductive materials, wafers, ceramics), or other applicable materials, and a single element configuration The region R1 is, for example, a rectangular region, and th...

no. 2 example

[0060] The manufacturing process of the organic electroluminescent device 100A of this embodiment is similar to that of the organic electroluminescent device 100 of the first embodiment, and will not be repeated here. The organic electroluminescent device 100A of this embodiment is only structurally similar to the organic electroluminescent device 100 , and this part will be described below.

[0061] Figure 5 It is a schematic top view of the organic electroluminescent element according to the second embodiment of the present invention. Please refer to Figure 5 The difference between the organic electroluminescent element 100A of this embodiment and the organic electroluminescent element 100 of the first embodiment is that each first electrode 120 of this embodiment only includes one series connection part S, and the first electrode 120 is along the direction D2 is arranged in two columns, wherein the first electrodes 120 of one column and the first electrodes 120 of the o...

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Abstract

An organic electroluminescent device manufacturing method comprises the steps of forming isolated first electrodes on a substrate and a patterned dielectric layer covering the first electrodes, having plural contact holes exposing the first electrode; forming plural barrier ribs formed on the patterned dielectric layer; simultaneously forming plural organic luminescent patterns located on the first electrodes and plural organic material patterns located on the barrier ribs with a first mask of a single first opening as a mask; simultaneously forming plural second electrodes on the organic luminescent patterns and plural conductive material patterns located on the organic material patterns with a second mask of a single second opening as a mask; separating the second electrodes and the conductive material patterns; and electrically connecting the second electrodes and the adjacent first electrode through contact holes.

Description

technical field [0001] The present invention relates to a light-emitting element and its manufacturing method, and in particular to an organic electroluminescent element and its manufacturing method. Background technique [0002] Organic electroluminescent display (organic electroluminescent display) has excellent characteristics such as thinness, self-luminescence, low power consumption, no need for backlight, no viewing angle limitation, and high response rate. It has been regarded as the star of tomorrow for flat-panel displays. In addition, passive organic light-emitting elements can form an array structure on a thin, flexible substrate, so they are also very suitable for lighting applications. It is generally estimated that the luminous efficiency of organic light-emitting elements will increase to more than 100Lm / W, and the color rendering performance is high. When it is above 80, there is an opportunity to replace general lighting sources, so organic light-emitting de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/56H01L51/50H01L51/52
Inventor 林振祺常鼎国陈介伟
Owner AU OPTRONICS CORP