Organic light-emitting display device containing quantum dots, display method and application thereof

A technology for light-emitting display devices and light-emitting devices, which is applied in the manufacture of electric solid-state devices, semiconductor devices, semiconductor/solid-state devices, etc., and can solve the problems of large screen loss, high light utilization rate, and small light loss, and improve utilization efficiency , Improve the color gamut and reduce power consumption

Inactive Publication Date: 2016-05-18
BEIJING VISIONOX TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since this technology filters out the required color light from white light, other colors of light will be filtered out, resulting in low utilization of incident light and large screen loss
[0006] Blu-ray plus CCM technology such as image 3 As shown, it uses blue as the base light source and converts it into red light and green light through the color conversion layer. This method has low light loss and high light utilization efficiency, but there are problems such as low efficiency of the blue light device itself and short device life.

Method used

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  • Organic light-emitting display device containing quantum dots, display method and application thereof
  • Organic light-emitting display device containing quantum dots, display method and application thereof
  • Organic light-emitting display device containing quantum dots, display method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0061] Example 1, such as Figure 4 As shown, in this embodiment, a white light device is used as a backlight source, and the light emitted by the white light device is white light. The white light device can adopt a stacked structure or a single light-emitting unit device. The spectrum when using a white light OLED is as follows: Figure 7 shown.

[0062] There is a blue up-conversion layer on the light-emitting side of the blue pixel of the white light device, which is used to convert the red light and green light in the light emitted by the backlight into blue light, and the blue light in the light emitted by the backlight can directly pass through Blue up-conversion layer, so as to obtain blue display light; there is also a green quantum dot layer on the light exit side of the white light device, which is used to convert the light emitted by the backlight source to green light, and the light emitted by the backlight source Green light can directly pass through the green ...

Embodiment 2

[0064] Example 2, such as Figure 5 As shown, this embodiment is in Figure 4 On the basis of the shown embodiment, white light pixels are added, which can replace the white field of a certain gray scale, which is more efficient than the white field recombined by using the display lights of the three primary colors of red, green, and blue, thereby reducing the power consumption of the display. Improve efficiency.

Embodiment 3

[0065] Example 3, such as Figure 6 As shown, in this embodiment, the light-emitting device used as the backlight source is a blue-green device, and the light emitted by the blue-green device is a mixed light of blue light and green light. The spectrum obtained by using blue light plus green light device is as follows Figure 8 shown.

[0066] There is a blue up-conversion layer on the light-emitting side of the blue-green device, which is used to convert the green light in the light emitted by the backlight into blue light, and the blue light in the light emitted by the backlight can directly pass through the blue up-conversion layer , so as to obtain blue display light; a green quantum dot layer is also provided on the light exit side of the blue-green device, which is used to convert the blue light emitted by the backlight to green light, and the green light in the light emitted by the backlight can be directly Pass through the green quantum dot layer to obtain green disp...

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PUM

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Abstract

The present invention discloses an organic light-emitting display device containing quantum dots, a display method and an application thereof. The organic light-emitting display device containing quantum dots comprises: a light-emitting device used for emitting a light serving as a backlight; a blue upper conversion layer used for converting a red light and / or green light in the light emitted by the light-emitting device into a blue light, and simultaneously allowing the blue light in the light emitted by the light-emitting device to transmit; a green quantum dot layer used for converting the blue light emitted by the light-emitting device into a green light, and simultaneously allowing the green light in the light emitted by the light-emitting device to transmit; and a red quantum dot layer used for converting the blue light and / or green light emitted by the light-emitting device into a red light, and simultaneously allowing the red light in the light emitted by the light-emitting device to transmit. Through adoption of the organic light-emitting display device of the present invention, luminous energy emitted by the backlight is fully utilized, and utilization efficiency of light is improved, power consumption of a display is reduced, and a service life of the display is prolonged, at the same time, displayed color gamut also can be improved.

Description

technical field [0001] The invention relates to the technical field of display of organic electroluminescence devices, in particular, an organic light-emitting display device containing quantum dots, a display method, and an application of the organic light-emitting display device. Background technique [0002] Organic electroluminescent devices have attracted widespread attention due to their thin body, large area, full curing, and flexibility. research hotspot. [0003] As early as the 1950s, Bernanose.A et al. started research on organic electroluminescent devices (OLEDs). The material initially studied was an anthracene single crystal. Due to the problem of the large thickness of the single crystal, the required driving voltage was very high. Until 1987, Deng Qingyun (C.W.Tang) and Vanslyke of EastmanKodak Company of the United States reported that the structure was: ITO / Diamine / AlQ 3 / Mg:Ag organic small molecule electroluminescence device, the brightness of the devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/52H01L51/56
Inventor 段炼张国辉李曼王静董艳波胡永岚
Owner BEIJING VISIONOX TECH
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