OLED display device, manufacturing method thereof, color film substrate and manufacturing method thereof

A technology for a display device and a manufacturing method, which is applied in chemical instruments and methods, semiconductor/solid-state device manufacturing, instruments, etc., and can solve the problems of low display brightness of OLED display devices, increased cost of OLED display devices, and expensive quantum dot materials, etc. , to achieve the effect of low price, improved stability and high luminous brightness

Active Publication Date: 2015-12-16
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since monochromatic light is obtained by color-resistive filtering, the light transmittance of the above-mentioned color filter layer is low, resulting in low display brightness of the OLED display device.
Although there is currently a method of increasing the color resistance of W (white) color in the color filter layer to improve the display brightness, increasing the color resistance of W (white) color in the color filter layer will cause the reduction of the display color gamut. Small; in addi

Method used

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  • OLED display device, manufacturing method thereof, color film substrate and manufacturing method thereof
  • OLED display device, manufacturing method thereof, color film substrate and manufacturing method thereof
  • OLED display device, manufacturing method thereof, color film substrate and manufacturing method thereof

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Embodiment 1

[0038] This embodiment provides an OLED display device, such as figure 1 As shown, the OLED display device includes: a TFT array substrate 1; a light emitting structure layer 2 disposed on the TFT array substrate 1, the light emitted by the light emitting structure layer 2 is infrared light; a light conversion layer located on the light emitting structure layer 2 3. The light conversion layer 3 includes a plurality of pixel areas, and each pixel area is provided with at least three light conversion units of red light, green light and blue light.

[0039] Among them, the red light conversion unit 31 is formed by an up-conversion luminescent material that emits red light after being excited by infrared light; the green light conversion unit 32 is formed by an up-conversion luminescent material that emits green light after being excited by infrared light; the blue light conversion unit 33 is formed by an up-conversion luminescent material that emits blue light after being excited...

Embodiment 2

[0051] This embodiment provides a method for manufacturing an OLED display device, the method comprising the following steps:

[0052] Step S1: if Figure 3a As shown, a TFT array substrate 1 was fabricated.

[0053] Step S2: as Figure 3b As shown, a light emitting structure layer 2 is formed on a TFT array substrate 1, and the light emitted by the light emitting structure layer 2 is infrared light.

[0054] Step S3: forming a light conversion layer, the light conversion layer is located on the light-emitting structure layer, the light conversion layer includes a plurality of pixel areas, and at least three light conversion units of red light, green light and blue light are arranged in each pixel area. Among them, the red light conversion unit is formed by an up-conversion luminescent material that emits red light after being excited by infrared light; the green light conversion unit is formed by an up-conversion luminescent material that emits green light after being excit...

Embodiment 3

[0067] This embodiment provides a color filter substrate, such as Figure 3e As shown, the color filter substrate includes: a base substrate 5; a light conversion layer 3 disposed on the base substrate 5, the light conversion layer 3 includes a plurality of pixel regions, each pixel region is provided with at least red light, green Three light conversion units for light and blue light. Among them, the red light conversion unit 31 is formed by an up-conversion luminescent material that emits red light after being excited by infrared light; the green light conversion unit 32 is formed by an up-conversion luminescent material that emits green light after being excited by infrared light; the blue light conversion unit 33 is formed by an up-conversion luminescent material that emits blue light after being excited by infrared light.

[0068] In the above-mentioned color filter substrate, different up-conversion light-emitting materials are used to form red light, green light and bl...

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PUM

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Abstract

The invention provides an OLED display device, a manufacturing method thereof, a color film substrate and a manufacturing method thereof, and relates to the technical field of displaying. On the premises of low cost and high display stability, the display brightness of the display device is improved, and the display color gamut is increased. The OLED display device comprises a TFT array substrate; a luminescent structure layer arranged on the TFT array substrate, wherein the luminescent structure layer emits out infrared light; and a light conversion layer arranged on the luminescent structure layer, wherein the light conversion layer comprises a plurality of pixel regions, each pixel region is internally provided with at least a red light conversion unit, a green light conversion unit and a blue light conversion unit. The red light conversion unit is formed by an upper conversion luminescent material which emits red light after excited by infrared light; the green light conversion unit is formed by an upper conversion luminescent material which emits green light after excited by infrared light; and the blue light conversion unit is formed by the upper conversion luminescent material which emits blue light after excited by the infrared light. The OLED display device is used for displaying images.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display device and a manufacturing method thereof, a color filter substrate and a manufacturing method thereof. Background technique [0002] OLED display device is an active light-emitting display device, which has excellent characteristics such as high contrast, thin thickness, wide viewing angle, fast response speed, can be used for flexible panels, wide operating temperature range, simple structure and manufacturing process, etc., and is widely used. In mobile phones, PDA (PersonalDigitalAssistant, Personal Digital Assistant), notebook computers, digital cameras, DVD (DigitalVersatileDisc, Digital Versatile Disc) machines, car audio and television and other fields. [0003] The structure of a traditional OLED display device mainly includes: a TFT (Thin Film Transistor, Thin Film Transistor) array su...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L51/52
CPCH10K59/122H10K50/865C09K11/7773G02B5/201G02B1/14H10K59/38H10K50/11H10K2102/331
Inventor 李颖祎
Owner BOE TECH GRP CO LTD
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