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Organic light emitting display (OLED) device

A technology of electroluminescence display and display device, which is applied to circuits, electrical components, electrical solid devices, etc., and can solve problems such as complex process routes

Active Publication Date: 2017-07-04
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the present invention aims at the problem that multiple sets of high-precision mask plates are required in the preparation process of the OLED light-emitting layer in the prior art, and the process route is complicated, and further provides an organic electroluminescence display device, which uses different color The RGB three-color light display composed of superimposed light-emitting OLED devices can produce devices with high-resolution pixels without the need for precision mask FMM during the preparation process

Method used

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  • Organic light emitting display (OLED) device
  • Organic light emitting display (OLED) device
  • Organic light emitting display (OLED) device

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The organic electroluminescent display device of this embodiment is as image 3 As shown, it includes a superimposed top-emitting OLED device (green OLED device) and a transparent OLED device (blue OLED device), the transparent OLED device is arranged in the light-emitting direction of the top-emitting OLED device, and the top-emitting OLED device A red light conversion layer is arranged between the transparent OLED device, and the red light conversion layer converts part of the light emitted by the top-emitting OLED device into red light, thereby realizing the RGB three-color light display of the organic electroluminescent display device.

[0032] The red light conversion layer includes a quantum dot thin film layer 31 that can absorb green light and a red light filter layer 32, the quantum dot thin film layer 31 is attached to the top-emitting OLED device, and the red light filter layer 32 It is arranged between the quantum dot film layer 31 and the transparent OLED d...

Embodiment 2

[0040] The organic electroluminescent display device of this embodiment is as Figure 4 As shown, it includes a top-emitting OLED device (blue-light OLED device) and a transparent OLED device (green-light OLED device) that are superimposed. The transparent OLED device is arranged in the light-emitting direction of the top-emitting OLED device, and the top-emitting OLED device A red light conversion layer is arranged between the transparent OLED device, and the red light conversion layer converts part of the light emitted by the top-emitting OLED device into red light, thereby realizing the RGB three-color light display of the organic electroluminescent display device.

[0041] The red light conversion layer is the same as in Example 1.

[0042] The top-emitting OLED device includes a first substrate 11 and a first encapsulation layer 15, and the first substrate 11 and the first encapsulation layer 5 form a closed space in which several pixel definition layers 16 are arranged, ...

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Abstract

The invention relates to an organic light emitting display (OLED) device. The OLED device comprises a top luminous OLED device and a transparent OLED device which are arranged in a lamination device, wherein the transparent OLED device is arranged in a light emergent direction of the top luminous OLED device, one of the top luminous OLED device and the transparent OLED device is a blue light emitting device, the other one of the top luminous OLED device and the transparent OLED device is a green light emitting device, a red light conversion layer is arranged between the top luminous OLED device and the transparent OLED device and is used for converting a part of light rays emitted from the top luminous OLED device to red light, so that RGB three-color light display of the OLED device is achieved. RGB three-color light display is formed by employing and laminating luminous LED devices in different colors, and a device with high resolution pixel can be fabricated without a precision mask FMM during the fabrication process.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescent display devices, in particular to an organic electroluminescent display device for RGB three-color light display formed by stacking light-emitting OLED devices of different colors. Background technique [0002] An organic electroluminescent display device (OLED) generally includes a plurality of pixels, and each pixel is composed of several light emitting regions. One of the currently widely used schemes in small and medium sizes consists of red, green, and blue pixels forming one pixel. In order to obtain higher pixel resolution, the red, green, and blue light-emitting area layers need to be vapor-deposited with high-precision masks during the preparation process, that is, three sets of precision metal masks are required. However, the highest precision of the precision metal mask is limited due to the technical level, which makes it difficult to improve the resolution of the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32
CPCH10K59/32H10K59/35H10K59/38
Inventor 高松刘嵩
Owner KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT