A method to improve the color drift of white light oled

A white light and color technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of high error probability and unscientific, and achieve the effects of reducing the probability of color shift, high brightness, and avoiding color drift

Active Publication Date: 2020-05-12
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 the color drift of white light OLEDs, comprising the following steps: Step 1: providing a large-sized OLED motherboard, the OLED motherboard includes a plurality of OLED display panels spaced apart from each other; Step 2: from the above An OLED display panel is selected from the OLED motherboard, and a detection block composed of several to dozens of pixels is arranged in the area of ​​the OLED display panel. The pixels in the detection block light up, and the pixels in the detection block The pixel brightness reaches the pixel brightness of the OLED module. In the present invention, an OLED display panel is selected from the OLED motherboard, and a detection block with a few to dozens of pixels lit up is designed. The pixel brightness in the detection block can reach or approach the pixel brightness of the module, so the detection block The color of the OLED motherboard is used as the color of the OLED motherboard to achieve high brightness, which can avoid the color drift from the OLED motherboard to the OLED module caused by the large brightness difference, reduce the probability of color shift, and is beneficial to the color control of OLED.

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 & AuthorityPatents(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