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Organic light-emitting diode display device and manufacturing method thereof

A technology for light-emitting diodes and display devices, which is applied in the directions of organic light-emitting devices, organic light-emitting device manufacturing/processing, organic light-emitting device structure, etc. Power consumption, the effect of improving luminous efficiency and brightness

Active Publication Date: 2015-03-25
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the present invention aims to solve the problems of low luminous efficiency and low luminance of top-emitting organic light-emitting diode display devices, thereby providing an organic light-emitting diode display device with high luminous efficiency and high luminance and its preparation method

Method used

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  • Organic light-emitting diode display device and manufacturing method thereof
  • Organic light-emitting diode display device and manufacturing method thereof
  • Organic light-emitting diode display device and manufacturing method thereof

Examples

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Embodiment 1

[0048] This embodiment provides an organic light emitting diode display device, such as figure 1 As shown, it includes a pixel unit layer formed on a substrate 1 , and the pixel unit layer includes several red light sub-pixels 31 , green light sub-pixels 32 , and blue light sub-pixels 33 arranged in an array.

[0049] One side of the pixel unit layer corresponds to the anode layer 2 , and the other side corresponds to the cathode layer.

[0050] As a changeable embodiment of the present invention, the structure and preparation method of the organic light emitting diode are the same as those of the prior art, both of which can achieve the purpose of the present invention and belong to the protection scope of the present invention.

[0051] The cathode layer corresponding to each of the sub-pixels includes a common first cathode layer 4. In addition, the cathode layer corresponding to the sub-pixel of at least one luminescent color includes a second cathode layer, and the second...

Embodiment 2

[0065] This embodiment provides an organic light emitting diode display device, such as figure 2 As shown, its specific structure and preparation process are the same as in Example 1, the only difference is that the second cathode layer is stacked on the lower side of the first cathode layer 4 .

[0066] The preparation method of the organic light-emitting diode display device firstly forms the second cathode layer on the red sub-pixel 31 and the green sub-pixel 32 respectively through a fine metal mask (shadow mask); ) forming the first cathode layer 4 covering the red sub-pixel 31, the green sub-pixel 32, the blue sub-pixel 33 and the second cathode layer on the red sub-pixel 31, the green sub-pixel 32, and the blue sub-pixel 33.

Embodiment 3

[0068] This embodiment provides an organic light emitting diode display device, such as image 3 As shown, its specific structure and preparation process are the same as in Example 1, the only difference is that the second cathode layer 5 arranged on the red sub-pixel 31 and the green sub-pixel 32 is continuously arranged and has the same thickness. In this embodiment, the second cathode layer 5 The thickness of the cathode layer 5 is As a changeable embodiment of the present invention, the thickness of the second cathode layer 5 is All can realize the object of the present invention, belong to the protection scope of the present invention.

[0069] like Figure 20 As shown, the periphery of the array of all sub-pixels is also provided with a conductive strip 6, and the conductive strip 6 covers the end of the cathode layer of each organic light emitting diode and a part of the electrode lead in the organic light emitting diode display device. , for lapping and conducti...

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Abstract

The invention relates to an organic light-emitting diode display device which comprises pixel unit layers. An anode layer is correspondingly arranged on one side of each pixel unit layer, and a cathode layer is correspondingly arranged on the other side of each pixel unit layer. The thickness of the cathode layers corresponding to sub-pixels with at least one light-emitting color is set to be different with the thickness of the cathode layers corresponding to the sub-pixels with the rest of light-emitting colors, so that the microcavity effect of organic light-emitting diodes with different light-emitting colors is improved, and thus the light-emitting efficiency, the brightness, the color reproducibility and other performance of the organic light-emitting diode display device are effectively improved. A manufacturing method of the organic light-emitting diode display device comprises the steps that the first cathode layers are manufactured through metal mask plates, second cathode layers are manufactured through fine metal mask plates, and the effect of improving the performance of the organic light-emitting diode display device can be achieved. The manufacturing technology is simple, and the manudacturing and applying cost of the organic light-emitting diode display device can be effectively lowered.

Description

technical field [0001] The invention relates to the field of organic electroluminescence, in particular to an organic light emitting diode display device with high luminous efficiency, high brightness and excellent color reproduction performance and a preparation method thereof. Background technique [0002] Organic light-emitting diode display device (English full name Organic Light Emitting Display) is an active light-emitting device, which has the advantages of high contrast, wide viewing angle, low power consumption, and thinner volume. It is expected to become the mainstream flat-panel display technology of the next generation. One of the most talked about technologies. [0003] The pixel unit layer in the organic light-emitting diode display device includes several juxtaposed organic light-emitting diodes (English full name Organic Light-Emitting Diode, OLED for short). Each organic light emitting diode at least includes an anode layer with a high work function, a cat...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L51/56H01L27/32
CPCH10K59/88H10K50/828H10K2102/302H10K71/00
Inventor 陈红彭兆基金波
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD