Method for improving color drift of white light OLED

A white light and color technology, used in optics, nonlinear optics, instruments, etc., can solve the problems of unscientific and high error probability, achieve high brightness, reduce the probability of color shift, and avoid color drift.

Active Publication Date: 2018-04-06
TRULY SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method of color control is very unscientific and has a high probability of error

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for improving color drift of white light OLEDs, comprising the steps of:

[0037] Step 1: providing a large-sized OLED motherboard, the OLED motherboard includes a plurality of OLED display panels spaced apart from each other;

[0038] Wherein, the OLED display panel includes a base plate and a cover plate, the white light OLED device is arranged on the base plate, the cover plate covers the white light OLED device on the base plate, and the base plate and the cover plate An encapsulation structure is also provided between them; the white light OLED device sequentially includes an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer and a cathode, and the white light OLED device has a double-layer light emitting The layer structure is specifically: the blue light emitted by the first light-emitting layer and the orange light emitted by the second light-emitting layer are mixed to...

Embodiment 2

[0045] A method for improving color drift of white light OLEDs, comprising the steps of:

[0046] Step 1: providing a large-sized OLED motherboard, the OLED motherboard includes a plurality of OLED display panels spaced apart from each other;

[0047] Wherein, the OLED display panel includes a base plate and a cover plate, the white light OLED device is arranged on the base plate, the cover plate covers the white light OLED device on the base plate, and the base plate and the cover plate An encapsulation structure is also provided between them; the white light OLED device sequentially includes an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer and a cathode, and the white light OLED device has a double-layer light emitting The layer structure is specifically: the blue light emitted by the first light-emitting layer and the orange light emitted by the second light-emitting layer are mixed to...

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Abstract

The invention discloses a method for improving color drift of a white light OLED. The method includes the first step of providing a large-size OLED mother board which includes a plurality of OLED display panels separated from each other; the second step of selecting one OLED display panel from the OLED mother board, arranging a detection block formed by tightly arranging several to dozens of pixels in an area of the OLED display panel, lightening pixels in the detection block, wherein the brightness of the pixels in the detection block reaches the brightness of the pixels of an OLED module. Inthe method for improving color drift of the white light OLED, one OLED display panel is selected from the OLED mother board, the detection block lightened by several to dozens of pixels is designed,the brightness of the pixels in the detection block can reach or be close to the brightness of the pixels of the module, so the color of the detection block serves as the color of the OLED mother board, high brightness is achieved, the color drift from the OLED mother board to the OLED module caused by large brightness difference can be avoided, the color cast probability is reduced, and the method is favorable for color control over OLEDs.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for improving the color drift of white light OLEDs. Background technique [0002] Organic electroluminescent devices (OLEDs) have broad applications in the fields of next-generation high-resolution new displays, special light sources for sensors, and solid-state lighting due to their excellent properties such as high luminous efficiency, rich colors, mechanical flexibility, and ultra-thin portability. prospect. [0003] As the performance of monochromatic OLEDs gradually matures, white OLEDs, as a new type of solid-state light source, have the advantages of simple structure, small size, light weight, low cost, uncomplicated process, and easy Large-scale, large-area production, with the characteristics of ultra-thin, large area, easy to carry, and flat panel display, can be used as a surface light source, and can also be used as a backlight source for displays and displ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G02F1/13357G09G3/34H01L27/32H01L51/56
CPCG02F1/133609G09G3/3413H10K59/00H10K50/84H10K71/00
Inventor罗志猛赵云张为苍何会楼
OwnerTRULY SEMICON