CN219758620U - Backlight module of liquid crystal display device with improved light conversion film - Google Patents
Backlight module of liquid crystal display device with improved light conversion film Download PDFInfo
- Publication number
- CN219758620U CN219758620U CN202320822422.1U CN202320822422U CN219758620U CN 219758620 U CN219758620 U CN 219758620U CN 202320822422 U CN202320822422 U CN 202320822422U CN 219758620 U CN219758620 U CN 219758620U
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- Prior art keywords
- conversion film
- blue light
- light conversion
- liquid crystal
- periphery
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 35
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 10
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 239000010408 film Substances 0.000 description 21
- 239000000758 substrate Substances 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000005083 Zinc sulfide Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
A backlight module of a liquid crystal display device having an improved light conversion film, comprising: a backlight plate, an LED lamp group and a blue light conversion film; the LED lamp groups are arranged on the backlight plate in a matrix arrangement; the blue light conversion film is arranged above the LED lamp group; and a blue light transmission filter layer is plated on the periphery of the upper surface of the blue light conversion film. According to the utility model, the blue light transmission filter layer is additionally arranged on the periphery of the light conversion film, so that blue light in a particle failure area on the periphery of the light conversion film cannot be refracted, the intensity of the blue light on the periphery is reduced, and the phenomenon of blue edges on the periphery is improved.
Description
Technical Field
The utility model belongs to the technical field of display devices, and particularly relates to a backlight module of a liquid crystal display device with an improved light conversion film.
Background
With the continuous development of electronic technology, people have increasingly demanded more colors for screens, and high-color-gamut backlights have been generated.
The liquid crystal display device comprises a liquid crystal display panel and a backlight module, wherein the backlight module is arranged on the light incident side of the liquid crystal display panel. The working principle of the liquid crystal display panel is that liquid crystal molecules are placed in two parallel glass substrates, a plurality of vertical and horizontal tiny wires are arranged between the two glass substrates, the direction of the liquid crystal molecules is controlled to change by electrifying or not, and the light rays of the backlight module are refracted out to generate pictures. A typical lcd panel is composed of a Color Filter (CF) substrate, a thin film transistor (TFT, thinFilmTransistor) substrate, a liquid crystal (LC, liquidCrystal) sandwiched between the color filter substrate and the thin film transistor substrate, and a Sealant frame (Sealant).
The main stream design of the backlight module of the liquid crystal display device at present is to use blue light backlight to build a light conversion film to excite white light, so that the color gamut of the white light is wider and the color is more vivid. However, the light conversion film has a phenomenon of peripheral blue edges because the particles at the peripheral part of the light conversion film fail, so that excessive blue light cannot be converted into white light, thereby affecting the display effect and presenting the phenomenon of peripheral blue edges.
Disclosure of Invention
One of the technical problems to be solved by the present utility model is to provide a backlight module of a liquid crystal display device with an improved light conversion film.
The utility model is realized in the following way:
a backlight module of a liquid crystal display device having an improved light conversion film, comprising: a backlight plate, an LED lamp group and a blue light conversion film; the LED lamp groups are arranged on the backlight plate in a matrix arrangement; the blue light conversion film is arranged above the LED lamp group; and a blue light transmission filter layer is plated on the periphery of the upper surface of the blue light conversion film.
Further, a blue light transmission filter layer is plated on the periphery of the lower surface of the blue light conversion film.
Further, the blue light transmission filter layer is high-refraction particles, and the refractive index of the high-refraction particles is 1.65-1.68.
Further, the blue light transmissive filter layer includes one or more of zirconia, titania, and zinc sulfide.
The utility model has the advantages that: and a blue light transmission filter layer is added on the periphery of the light conversion film, so that blue light cannot be refracted in a particle failure area on the periphery of the light conversion film, the intensity of the blue light on the periphery is reduced, and the phenomenon of blue edges on the periphery is improved.
Drawings
The utility model will be further described with reference to the accompanying drawings, in conjunction with examples.
Fig. 1 is a cross-sectional view of a first embodiment of the present utility model.
Fig. 2 is a top view of a first embodiment of the present utility model.
Reference numerals:
1-backlight plate, 2-blue LED lamp, 3-blue light conversion film, 4-blue light transmission filter layer.
Detailed Description
First embodiment:
as shown in fig. 1 and 2, a backlight module of a liquid crystal display device with an improved light conversion film includes: a backlight 1, an LED lamp group (blue LED lamp 2), and a blue light conversion film 3; the LED lamp groups are arranged on the backlight plate 1 in a matrix arrangement; the blue light conversion film 3 is arranged above the LED lamp group; and a blue light transmission filter layer 4 is plated on the periphery of the upper surface of the blue light conversion film 3.
The blue light transmission filter layer 4 is a high refractive particle, and the refractive index of the high refractive particle is 1.65-1.68. Alternatively, the blue light transmissive filter layer 4 includes one or more of zirconia, titania, and zinc sulfide.
In another embodiment, the blue light conversion film 3 may be a blue light transmission filter layer 4 coated around the lower surface.
According to the utility model, the blue light transmission filter layer 4 is additionally arranged on the periphery of the light conversion film 3, so that blue light in a particle failure area on the periphery of the light conversion film cannot be refracted, the intensity of the blue light on the periphery is reduced, and the phenomenon of blue edges on the periphery is improved.
The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present utility model.
Claims (3)
1. A backlight module of a liquid crystal display device with an improved light conversion film is characterized in that: comprising the following steps: a backlight plate, an LED lamp group and a blue light conversion film; the LED lamp groups are arranged on the backlight plate in a matrix arrangement; the blue light conversion film is arranged above the LED lamp group; and a blue light transmission filter layer is plated on the periphery of the upper surface of the blue light conversion film.
2. The backlight module of claim 1, wherein the light conversion film is modified for a liquid crystal display device, and the backlight module comprises: and a blue light transmission filter layer is plated on the periphery of the lower surface of the blue light conversion film.
3. A backlight module of a liquid crystal display device having an improved light conversion film as claimed in claim 1 or 2, wherein: the blue light transmission filter layer is high-refraction particles, and the refractive index of the high-refraction particles is 1.65-1.68.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320822422.1U CN219758620U (en) | 2023-04-14 | 2023-04-14 | Backlight module of liquid crystal display device with improved light conversion film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320822422.1U CN219758620U (en) | 2023-04-14 | 2023-04-14 | Backlight module of liquid crystal display device with improved light conversion film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219758620U true CN219758620U (en) | 2023-09-26 |
Family
ID=88072589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320822422.1U Active CN219758620U (en) | 2023-04-14 | 2023-04-14 | Backlight module of liquid crystal display device with improved light conversion film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219758620U (en) |
-
2023
- 2023-04-14 CN CN202320822422.1U patent/CN219758620U/en active Active
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