oled display device

A display device and light-emitting layer technology, which is applied in the field of OLED display devices, can solve the problems of brightness, contrast, inferior color, loss of light source efficiency, energy saving and three-primary-color independent pixel light-emitting technology, etc., to achieve cost saving, stability and life improvement Effect

Active Publication Date: 2019-08-06
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology only involves the preparation of a white reflective material, but it requires the use of three filter films
Moreover, compared with the three-primary-color independent pixel light-emitting technology display, the technical difficulty and cost of combining white light and filter film are relatively low, but the light source efficiency is lost due to the addition of filter film, and the light loss caused by the color filter film As high as two-thirds, the three important display indicators of brightness, contrast, and color will be inferior to the three-primary-color independent pixel light-emitting technology, and the degree of energy saving is not as good as the three-primary-color independent pixel light-emitting technology

Method used

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Embodiment 1

[0025] see figure 1 , figure 1 It is a schematic diagram of the first embodiment of the OLED display device of the present invention. Cooperate with reference figure 1 As shown, in the first embodiment, the OLED display device of the present invention includes: a substrate 10a and a cover plate 20a connected to each other by a sealant 30a, a sealed space 1a is formed between the substrate 10a and the cover plate 20a, and the sealed space 1a An anode layer 40a, a hole injection layer 60a, a hole transport layer 70a, an electron transport layer 80a, and a cathode layer 90a disposed on the substrate 10a, and a red particle disposed between the hole transport layer 70a and the electron transport layer 80a pixel, green subpixel, and blue subpixel. The sealant 30a can be sealed to protect the internal electronic devices. Preferably, the substrate 10a and the cover 20a are made of glass or flexible material, and at least one of the substrate 10a and the cover 20a is light-transmi...

Embodiment 2

[0029] see figure 2 , figure 2 It is a schematic diagram of the second embodiment of the OLED display device of the present invention. Cooperate with reference figure 2 As shown, in the second embodiment, the OLED display device of the present invention includes: a substrate 10b and a cover plate 20b interconnected by a sealant 30b, a sealed space 1b is formed between the substrate 10b and the cover plate 20b, and the sealed space 1b The anode layer 40b, the hole injection layer 60b, the hole transport layer 70b, the electron transport layer 80b and the cathode layer 90b disposed on the substrate 10b, as well as the red sublayer disposed between the hole transport layer 70b and the electron transport layer 80b pixel, green subpixel, blue subpixel, and white subpixel. The sealant 30b can be sealed to protect the internal electronic devices. Preferably, the substrate 10b and the cover 20b are made of glass or a flexible material, and at least one of the substrate 10b and ...

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Abstract

The invention provides an OLED display device, which comprises a red sub-pixel provided with a first white light-emitting layer and a red light-filtering film, wherein the red light-filtering film is located in the light emitting direction of the first white light-emitting layer; a green sub-pixel provided with a green light-emitting layer; and a blue sub-pixel provided with a second white light-emitting layer and a blue light-filtering film, wherein the blue light-filtering film is located in the light emitting direction of the second white light-emitting layer. According to the technical scheme of the OLED display device, the red sub-pixel is composed of the white light-emitting layer and the red light-filtering film, while the blue sub-pixel is composed of the white light-emitting layer and the blue light-emitting film. Therefore, no red-light and blue-light organic light-emitting materials is adopted. The problems of poor light-emitting efficiency and short service life due to the adoption of red-light and blue-light organic light-emitting materials in the prior art can be solved. Meanwhile, the stability and the service life of the OLED display device can be obviously improved. In addition, compared with the prior art, the number of light-filtering films is reduced and the cost is saved.

Description

technical field [0001] The invention relates to the field of manufacturing organic electroluminescent display devices, in particular to an OLED display device. Background technique [0002] Flat-panel display devices have many advantages such as thin body, power saving, and no radiation, and have been widely used. Existing flat panel display devices mainly include liquid crystal display devices (Liquid Crystal Display, LCD) and organic electroluminescent display devices (Organic Light Emitting Display, OLED). Organic electroluminescent devices have excellent characteristics such as self-luminescence, no need for backlight, high contrast, thin thickness, wide viewing angle, fast response speed, flexible panels, wide operating temperature range, and simple structure and manufacturing process. , is considered to be the next-generation flat-panel display emerging application technology. [0003] Generally, there are two ways for OLED display technology to realize color display...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32
Inventor 周思思倪杰
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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