Patterned color conversion film and display device using same

A display device and conversion film technology, which is applied in lighting devices, optics, light sources, etc., can solve problems such as uneven viewing angles, achieve high light extraction rate, improve backlight utilization rate, and high backlight utilization rate.

Active Publication Date: 2017-06-13
INNOCOM TECH (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a patterned color conversion film, which can improve the backlight utilization rate (ie, backlight absorption rate) and light extraction rate by using scattering particles, and improve the shortcomings of uneven viewing angles

Method used

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  • Patterned color conversion film and display device using same
  • Patterned color conversion film and display device using same
  • Patterned color conversion film and display device using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Such as figure 1 As shown, this embodiment provides a patterned color conversion film applied to blue light as a backlight (or light source), including: a separator 11 with a plurality of openings 111; and red pixel units 121, green pixel units 122 and the transparent pixel unit 123 are respectively disposed in the opening 111 . Wherein, the red pixel unit 121 and the green pixel unit 122 respectively include: substrates 1211, 1221, scattering particles 1212, 1222 dispersed in the substrates 1211, 1221, and quantum dots 1213, 1223 dispersed in the substrates 1211, 1221, and transparent The pixel unit 123 includes: a matrix 1231 and scattering particles 1232 dispersed in the matrix 1231 .

[0058] In the patterned color conversion film of this embodiment, the material of the matrix 1211 , 1221 , 1231 can be a material known in the art, and is preferably a material with a refractive index of 1.4˜1.7. Specific examples of usable materials for the matrix such as silicone ...

Embodiment 2

[0070] Such as image 3As shown, this embodiment provides a patterned color conversion film applied to ultraviolet light as a backlight source (or light source), including: a separator 11 with a plurality of openings 111; and red pixel units 121, green pixel units The unit 122 and the blue pixel unit 124 are respectively disposed in the opening 111 . Wherein, the red pixel unit 121, the green pixel unit 122 and the blue pixel unit 124 respectively include: substrates 1211, 1221, 1241, scattering particles 1212, 1222, 1242 dispersed in the substrates 1211, 1221, 1241, and dispersed in the substrate 1211 , 1221, 1241 quantum dots 1213, 1223, 1243 in .

[0071] In simpler terms, also compare figure 1 and image 3 The difference between this embodiment and the first embodiment is that the transparent pixel unit 123 of the first embodiment is replaced by the blue pixel unit 124 .

[0072] In this embodiment, the material and refractive index of the substrates 1211 , 1221 , 1241...

Embodiment 3

[0076] This embodiment provides a liquid crystal display device using the patterned color conversion film provided in Embodiment 1.

[0077] Such as Figure 4 As shown, the liquid crystal display device of this embodiment includes: a light emitting source 41 ; and a patterned color conversion film 1 disposed on a light emitting surface of the light emitting source 41 . In addition to the above elements, the liquid crystal display device of this embodiment also includes: a first polarizer 42 arranged on the light source 41; a first substrate 43 arranged on the first polarizer 42, and on the first substrate 43 A first electrode 431 and a first alignment layer 432 are arranged in sequence; a second substrate 45 is provided with a second electrode 451 and a second alignment layer 452 in sequence on one side, and the first alignment layer 432 and the first alignment layer Two alignment layers 452 are disposed opposite to each other; a liquid crystal layer 44 is disposed between th...

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Abstract

The present invention relates to a patterned color conversion film and a display device using the same. The patterned color conversion film of the present invention includes: a partition spaced with a plurality of openings; and a plurality of pixel units respectively disposed in the openings, wherein each pixel unit includes: a matrix, and a plurality of pixel units dispersed in the matrix. scattering particles, and at least one pixel unit includes a plurality of quantum dots; wherein, the volume percentage concentration of the quantum dots included in the pixel unit is greater than or equal to 5V% and less than or equal to 80V%, and the particle size of the scattering particles is between 0.05μm~ 1 μm, or when the volume percentage concentration is less than 5 V% and greater than or equal to 0 V%, the particle size of the scattering particles is between 0.2 μm and 2 μm.

Description

technical field [0001] The present invention relates to a patterned color conversion film and a display device using the same, in particular to a patterned color conversion film made of quantum dots that can replace a color filter and a display device using the same. Background technique [0002] Quantum Dots (Quantum Dots, QDs) is a zero-dimensional semiconductor nanocrystal (ZeroDimensionalSemiconducting Nanocrystal), and its size in all directions is at the nanometer level. When the size of semiconductor particles is as small as nanometers, the influence of surface effects makes quantum dots exhibit many physical and chemical properties different from macroscopic materials. In addition, when the particle size is smaller than the exciton Bohr radius, its energy gap will increase as the particle size shrinks, and the luminous wavelength will also shorten; therefore, the luminescence can be easily regulated by controlling the particle size of the quantum dots wavelength, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/14G02F1/153
Inventor 陈志荣翁睿哲连峻仪
Owner INNOCOM TECH (SHENZHEN) CO LTD
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