CN210573093U - Light modulation diaphragm, backlight module and display device - Google Patents
Light modulation diaphragm, backlight module and display device Download PDFInfo
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- CN210573093U CN210573093U CN201921209821.0U CN201921209821U CN210573093U CN 210573093 U CN210573093 U CN 210573093U CN 201921209821 U CN201921209821 U CN 201921209821U CN 210573093 U CN210573093 U CN 210573093U
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Optical Filters (AREA)
Abstract
The utility model provides a light modulation membrane, a backlight module and a display device, the light modulation membrane is arranged at the front side of a color conversion layer of the backlight module, and is arranged at the back side of the display panel of the display device, the light modulation film comprises a substrate and at least one light modulation layer with pigment, the light modulation layer is arranged on the substrate, the central area and the peripheral area are defined on the light modulation layer, the pigment content of the light modulation layer decreases gradually from the peripheral area to the central area, the light modulation film of the utility model is mainly characterized in that the light modulation layer containing pigment is arranged on the substrate, and the pigment content of the light adjusting layer is decreased gradually from the peripheral area to the central area by using the structural change of the light adjusting layer, so that the light emitted by the light source can achieve the light adjusting effect by using the pigment in the light adjusting layer when passing through the light adjusting layer of the light adjusting film sheet, thereby improving the light mixing uniformity at the periphery of the backlight module and improving the overall optical quality of the backlight module.
Description
Technical Field
The utility model relates to a subassembly of adjusting luminance especially relates to be applied to backlight module and display device's of straight following formula membrane of adjusting luminance and application thereof.
Background
In the existing display device, a backlight module is mainly used to provide a backlight source for a display panel. The backlight module of the present display device can be divided into a direct type and a side type according to the light incident mode. The direct type backlight module is provided with a light source in the shell and is matched with a combination of optical films such as a prism sheet, a diffusion sheet and the like to provide a backlight source required by the display panel.
The light source selection of the direct type backlight module can adopt the following methods. Red, green and blue single-color light emitting diodes (RGB LEDs) are used as light sources, and light is diffused, reflected or refracted when passing through the optical film, so that light mixing is completed to form white light; or, a blue light emitting diode is used as a light source, and the blue light emitted by the blue light emitting diode can excite the quantum dot film to emit white light. However, the light near the periphery of the backlight module has a small number of times of reflection or refraction, which causes a problem of uneven light mixing, resulting in color difference of the light near the periphery of the backlight module.
Therefore, how to avoid the color difference caused by the non-uniform light mixing at the periphery of the backlight module is a problem that manufacturers are urgently required to solve.
SUMMERY OF THE UTILITY MODEL
Therefore, the present invention is to provide a light modulation film, a backlight module and a display device, so as to improve the problem of color difference caused by the uneven light mixing at the periphery of the current backlight module.
In order to realize the above object, the utility model provides a light modulation membrane sets up between direct type backlight module's color conversion layer and display panel, and this light modulation membrane includes:
a substrate defining a central region and a peripheral region; and
at least one light adjusting layer with pigment, which is arranged on the substrate, wherein the pigment content on the light adjusting layer decreases from the peripheral area to the central area.
The light modulation film comprises two light modulation layers, and the two light modulation layers are respectively arranged on two opposite side surfaces of the substrate.
Wherein, the thickness of the light modulation layer decreases from the outer edge of the peripheral area to the central area.
The substrate is defined with a first direction and a second direction perpendicular to the first direction, a plurality of parallel rib-shaped structures are distributed on the dimming layer, and the plurality of rib-shaped structures extend along the first direction and are arranged along the second direction.
The distance between every two adjacent rib-shaped structures increases from the two opposite sides of the dimming layer to the center of the central area.
Wherein the thickness of each rib-like structure decreases from the opposite sides thereof toward the center.
Wherein each rib-like structure has a rib-like central region that is planar.
Wherein each rib-shaped structure is an inverted V-shaped structure and is provided with a top edge, and the top edge is a round angle.
The light modulation layer is distributed in the peripheral area to form a plurality of microstructures, and the distribution density of the plurality of microstructures is gradually reduced from the outer edge of the peripheral area to the central direction of the central area.
Wherein the size of every two adjacent microstructures decreases from the outer edge of the peripheral region to the central direction of the central region.
Wherein, the distance between every two adjacent microstructures increases from the outer edge of the peripheral area to the central direction of the central area.
Wherein the light adjusting layer is formed on the substrate by colloid containing pigment; or the light adjusting layer is formed on the substrate in a coloring printing mode.
In order to achieve the above object, the present invention further provides a backlight module comprising:
a housing;
a light source disposed within the housing;
a color conversion layer disposed in the housing and located at a front side of the light source; and
the color material of the light modulation film is a color for correcting the color difference of light rays emitted by the backlight module.
The backlight module comprises at least one optical film, and the optical film is arranged on the front side of the light modulation film.
In order to achieve the above object, the present invention further provides a backlight module comprising:
such as the aforementioned backlight module; and
and the display panel is arranged on the front side of the backlight module.
The utility model discloses the diaphragm of adjusting luminance mainly by set up the dimming layer that contains the colouring material on the base plate, and utilize the structural change of dimming layer makes the colouring material content of dimming layer certainly peripheral district orientation central zone steadilys decrease, and the light that makes the light source send by this can pass through during the dimming layer of dimming diaphragm, can utilize the intraformational colouring material of adjusting luminance reaches the effect of adjusting luminance, and then can improve the mixed light degree of consistency at backlight module's periphery improves backlight module's whole optics taste.
Drawings
Fig. 1 is a schematic side plan view of a first preferred embodiment of a light modulation film according to the present invention.
Fig. 2 is a schematic side plan view of a second preferred embodiment of the light modulation film of the present invention.
Fig. 3 is a schematic perspective view of a light modulation film according to a third preferred embodiment of the present invention.
3 fig. 3 4 3 is 3 a 3 schematic 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 of 3 fig. 3 3 3. 3
Fig. 5 is a schematic perspective view of a light modulation film according to a third preferred embodiment of the present invention, in which a rib structure is formed with a flat surface.
Fig. 6 is a schematic side plan view of a light modulation film according to a fourth preferred embodiment of the present invention, which employs a hemispherical microstructure.
Fig. 7 is a schematic side plan view of a light modulation film sheet according to a fourth preferred embodiment of the present invention, in which a pyramidal microstructure is used.
Fig. 8 is a schematic view of a fifth preferred embodiment of the light modulation film of the present invention.
Fig. 9 is a schematic side view of the backlight module of the present invention.
Fig. 10 is a schematic side sectional view of the display device of the present invention.
Detailed Description
Referring to fig. 1 to 10, several preferred embodiments of the light modulation film 10 of the present invention are disposed between the color conversion layer 23 of the direct-type backlight module 20 and the display panel 31, the light modulation film 10 includes a substrate 11 and at least one light modulation layer 12 a-12 e having a pigment, the substrate 11 defines a central region 13 and a peripheral region 14, and the central region 13 is surrounded by the peripheral region 14. For example, the light-adjusting layers 12 a-12 d with pigments can be coated on the substrate 11 by using a colloid (e.g., UV glue) containing pigments, and then the light-adjusting layers 12 a-12 d are formed outside the substrate 11 by using a suitable mold; alternatively, as shown in fig. 8, the light control layer 12e may be printed on the substrate 11 in a color-gradient manner by selecting the above color printing method.
The substrate 11 has two opposite side surfaces, and the dimming layers 12a to 12e can be selectively disposed on at least one side surface of the substrate 11 or the dimming layers 12a to 12e are disposed on both of the two opposite side surfaces.
Wherein the coloring material content of the light control layers 12a to 12e decreases from the peripheral region 14 toward the central region 13.
The pigments of the light adjusting layers 12a to 12e are the correction colors of the color difference of the light emitted by the backlight module. For example, if the color of the light is blue, the complementary color of the colorant is yellow. In the first to fourth preferred embodiments of the light modulation film 10 of the present invention, the light modulation layers 12a to 12d can decrease the pigment content of the light modulation layers 12a to 12d from the peripheral region 14 to the central region 13 by the structural change such as the thickness or the distance, and the following description will be made for each embodiment.
As shown in fig. 1, in the first preferred embodiment of the light modulation film 10 of the present invention, the thickness of the light modulation layer 12a decreases gradually from the outer edge of the peripheral area 14 toward the central area 13, and the first preferred embodiment of the light modulation film 10 mainly changes the thickness of the light modulation layer 12a, so as to increase the pigment content contacted when the light passes through the peripheral area 14, thereby achieving the light modulation effect of fine-tuning the central area 13 and the peripheral area 14.
As shown in fig. 2, in the second preferred embodiment of the light modulation film 10 of the present invention, the thickness of the light modulation layer 12b decreases progressively from the outer edge of the peripheral area 14 toward the central area 13, the central area 13 can be a flat surface, the pigment content in the central area 13 is uniformly distributed, the second preferred embodiment of the light modulation film 10 mainly changes by the thickness of the light modulation layer 12b, so as to increase the pigment content contacted when the light passes through the peripheral area 14, and compared with the central area 13, the second preferred embodiment of the present invention has the function of increasing the light modulation effect of the peripheral area 14.
As shown in fig. 3, in a third preferred embodiment of the light modulation film 10 of the present invention, the substrate 10 defines a first direction D1 and a second direction D2 perpendicular to the first direction D1, a plurality of parallel rib structures 15 are distributed on the light modulation layer 12c, and the rib structures 15 extend along the first direction D1 and are arranged along the second direction D2.
As shown in FIG. 4, the thickness of the two opposite sides of the rib-like structure 15 decreases from the outer edge of the peripheral region 14 toward the center of the central region 13. In addition, as shown in fig. 3, the distance between every two adjacent rib structures 15 increases from the opposite sides of the substrate 11 in the second direction D2 toward the central direction of the substrate 11, and the third preferred embodiment of the light adjusting film sheet 10 can further fine-tune the pigment content in the central region 13 and the peripheral region 14 mainly by the thickness of the rib structure 15 on the light adjusting layer 12c and the distance between the adjacent rib structures 15, so as to achieve the light adjusting effect of the central region 13 and the peripheral region 14.
In addition, without affecting the optical quality, as shown in fig. 5, each rib-like structure 15 has a rib-like central region 151, and the rib-like central region 151 is a plane 152; alternatively, each rib 15 is an inverted V-shaped structure with rounded top edges, and the flat surface 152 or rounded top edges are designed to prevent the rib 15 from scratching other films.
As shown in fig. 6 and 7, in a fourth preferred embodiment of the light modulation film 10 of the present invention, the light modulation layer 12d is distributed in the peripheral region 14 to form a plurality of microstructures 17a, 17b, for example, the microstructures 17a, 17b can be hemispherical or pyramidal. For the present embodiment, the distribution density of the plurality of microstructures 17a and 17b decreases from the outer edge of the peripheral area 14 toward the center of the central area 13, and the distance between every two adjacent microstructures 17a and 17b increases from the outer edge of the peripheral area 14 toward the center of the central area 13, so that the color difference between the central area 13 and the peripheral area 14 can be further fine-tuned by the size change of each microstructure 17 and the distance change of the adjacent microstructures 17, thereby achieving the effect of fine-tuning the light-tuning effect of the central area 13 and the peripheral area 14, and reducing the color difference between the central area 13 and the peripheral area 14. In other embodiments, the size of each two adjacent microstructures 17a and 17b may decrease from the outer edge of the peripheral region 14 toward the center of the central region 13 instead of changing the pitch, and the difference between the color contents of the central region 13 and the peripheral region 14 may be further fine-tuned, so as to achieve the light-tuning effect of the central region 13 and the peripheral region 14 and reduce the difference between the color differences of the central region 13 and the peripheral region 14.
As shown in fig. 8, in a fifth preferred embodiment of the light modulation film 10 of the present invention, the light modulation layer 12e is printed with a coloring material on the bottom surface of the optical film 24 in a gradient manner in an upper color printing manner, wherein the coloring material content of the light modulation layer 12e is gradually decreased from the periphery of the light modulation film 10 inward, and the light modulation layer 12e is not printed with the coloring material in the central area 13.
Referring to fig. 9, a backlight module 20 according to a preferred embodiment of the present invention includes a housing 21, a light source 22, a color conversion layer 23 and the above-mentioned light modulation film 10.
The light source 22 is disposed in the housing 21. For example, the light source 22 may be a blue light emitting diode, and is preferably arranged in a matrix in the housing 21.
The color conversion layer 23 is disposed in the housing 21 and located in front of the light source 22, and the color conversion layer 23 has two opposite surfaces, one surface facing the light source 22 is a light incident surface, and the other surface is a light emitting surface. The color conversion layer 23 is used to convert the light of the light source 22 into desired color light, for example, the light source 22 is selected as a blue light emitting diode, and the color conversion layer 23 is selected as a quantum dot film and can be excited by the blue light to emit white light.
The light modulation film 10 is disposed on the front side of the color conversion layer 23, and the light modulation film 10 is disposed on the light emitting surface of the color conversion layer 23, wherein the pigment of the light modulation film 10 is a color for correcting the color difference of the light emitted from the backlight module 20. For example, after the light source 22 is selected as a blue led and the light is converted into the desired color light by the color conversion layer 23, the color difference between the central area 13 and the peripheral area 14 is generally due to insufficient light mixing effect, so that the desired color light is still blue, and the color material in the light adjusting film sheet 10 must be selected as a color material for correcting the deviation of the light, which is yellow color material in this embodiment, so as to adjust the color difference to achieve a better light mixing uniformity and improve the overall optical quality of the backlight module.
In addition, the backlight module 20 includes at least one optical film 24, the optical film 24 is disposed on the front side of the light modulation film 10, the optical film 24 may include a prism sheet, a diffusion sheet, etc., and the number and arrangement order thereof may be determined according to the requirement. More preferably, the bottom surface of the optical film 24 includes the light modulation film 10, that is, the substrate 11 may be an optical film with better light transmittance, such as a prism sheet or a brightness enhancement film, the bottom surface of the optical film is provided with light modulation layers 12a to 12e, as shown in fig. 1 to 7, the light modulation layers 12a to 12d may be formed by coating the colloid (e.g. UV glue) including the pigment on the substrate and then molding the colloid with a suitable mold, or as shown in fig. 8, the light modulation layer 12e may be printed with the pigment on the bottom surface of the optical film 24 in a gradient manner by using a color printing method. For example, when the light source 22 is a blue LED, the colorant is selected to be yellow, and the concentration of the printed yellow pigment decreases from the peripheral region 14 toward the central region 13.
Referring to fig. 10, a display device 30 according to a preferred embodiment of the present invention includes the backlight module 20 and the display panel 31 disposed at the front side of the backlight module 20.
To sum up, the light modulation film 10 of the present invention mainly utilizes the structural change of the thickness or the distance between the light modulation layers 12a to 12e by disposing the light modulation layers 12a to 12e containing the pigment on the substrate 11; or, the pigment content of the light modulation layers 12a to 12e decreases from the peripheral region 14 toward the central region 13 by adopting a gradient printing manner, and the difference between the unit pigment content of the peripheral region 14 and the unit pigment content of the central region 13 enables the light emitted by the light source 22 to achieve the light modulation effect by using the pigment in the light modulation layers 12a to 12e when the light passes through the light modulation layers 12a to 12e of the light modulation film 10, thereby improving the light mixing uniformity at the periphery of the backlight module 20 and improving the overall optical quality of the backlight module 20.
Description of the symbols
10 light modulation diaphragm 11 base plate
12 a-12 e dimming layer 13 central region
14 peripheral region 15 rib structure
17a, 17b microstructure 20 backlight module
21 housing 22 light source
23 color conversion layer 24 optical film
30 display device 31 display panel
D1 first direction D2 second direction
Claims (16)
1. The utility model provides a light modulation diaphragm which characterized in that, light modulation diaphragm sets up between straight following formula backlight unit's color conversion layer and display panel, light modulation diaphragm includes:
a substrate defining a central region and a peripheral region; and
at least one light adjusting layer with pigment, which is arranged on the substrate, wherein the pigment content on the light adjusting layer decreases from the peripheral area to the central area.
2. The light modulation film sheet according to claim 1, wherein the light modulation film sheet comprises two light modulation layers provided on opposite sides of the substrate, respectively.
3. The light adjusting film sheet according to claim 1 or 2, wherein the thickness of the light adjusting layer decreases from the outer edge of the peripheral region toward the center of the central region.
4. The light modulation film sheet according to claim 1 or 2, wherein the substrate defines a first direction and a second direction perpendicular to the first direction, and a plurality of parallel rib structures are distributed on the light modulation layer, and the rib structures extend along the first direction and are arranged along the second direction.
5. A dimming film according to claim 4, wherein the pitch of each two adjacent rib-like structures increases from opposite sides of the dimming layer towards the centre of the central region.
6. The light modulating film as claimed in claim 4, wherein the thickness of each rib-like structure decreases from the opposite sides thereof toward the center.
7. The light adjusting film sheet according to claim 6, wherein each rib-like structure has a rib-like central region, and the rib-like central region is a plane.
8. The light adjusting film sheet according to claim 6, wherein each rib-like structure is an inverted V-shaped structure having a top edge, and the top edge is rounded.
9. The light modulation film according to claim 1 or 2, wherein the light modulation layer is arranged to form a plurality of microstructures in the peripheral region, and a distribution density of the plurality of microstructures decreases from an outer edge of the peripheral region toward a center of the central region.
10. The light adjusting film sheet according to claim 9, wherein the size of each two adjacent microstructures decreases from the outer edge of the peripheral region toward the center of the central region.
11. The light adjusting film sheet according to claim 9, wherein the pitch of each two adjacent microstructures increases from the outer edge of the peripheral region toward the center of the central region.
12. A light adjusting film sheet according to claim 1 or 2, wherein the light adjusting layer is formed on the substrate in a gel containing a coloring material.
13. The light modulation film sheet according to claim 1 or 2, wherein the light modulation layer is formed on the substrate in a color-printed manner.
14. A backlight module, comprising:
a housing;
a light source disposed within the housing;
a color conversion layer disposed within the housing and located at a front side of the light source; and
the light modulation film according to any one of claims 1 to 13, which is disposed on the front side of the color conversion layer, wherein the colorant of the light modulation film is a color for correcting the color difference of light emitted from the backlight module.
15. The backlight module of claim 14, wherein the backlight module comprises at least one optical film disposed on a front side of the light modulating film.
16. A display device characterized by comprising:
a backlight module according to claim 14 or 15; and
and the display panel is arranged on the front side of the backlight module.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921209821.0U CN210573093U (en) | 2019-07-29 | 2019-07-29 | Light modulation diaphragm, backlight module and display device |
| PCT/CN2020/091325 WO2021017587A1 (en) | 2019-07-29 | 2020-05-20 | Light adjustment film, backlight module, and display apparatus |
| JP2021534157A JP7301134B2 (en) | 2019-07-29 | 2020-05-20 | Light control film, backlight module and display device |
| KR1020217018394A KR20220044431A (en) | 2019-07-29 | 2020-05-20 | Dimming film, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921209821.0U CN210573093U (en) | 2019-07-29 | 2019-07-29 | Light modulation diaphragm, backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210573093U true CN210573093U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921209821.0U Active CN210573093U (en) | 2019-07-29 | 2019-07-29 | Light modulation diaphragm, backlight module and display device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7301134B2 (en) |
| KR (1) | KR20220044431A (en) |
| CN (1) | CN210573093U (en) |
| WO (1) | WO2021017587A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305803A (en) * | 2019-07-29 | 2021-02-02 | 瑞仪光电(南京)有限公司 | Light modulation diaphragm, backlight module and display device |
| WO2021017587A1 (en) * | 2019-07-29 | 2021-02-04 | 瑞仪光电(南京)有限公司 | Light adjustment film, backlight module, and display apparatus |
| US10989389B2 (en) | 2019-07-29 | 2021-04-27 | Radiant Opto-Electronics Corporation | Light-adjusting film, backlight module, and display device |
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| JP5280106B2 (en) * | 2007-12-07 | 2013-09-04 | デクセリアルズ株式会社 | Light source device and display device |
| JP2011003488A (en) * | 2009-06-22 | 2011-01-06 | Panasonic Corp | Surface light source and liquid crystal display |
| JP5863291B2 (en) * | 2011-06-28 | 2016-02-16 | 株式会社小糸製作所 | Flat light emitting module |
| JP2014530449A (en) * | 2011-09-09 | 2014-11-17 | コーニンクレッカ フィリップス エヌ ヴェ | Light emitting device |
| CN102661544B (en) * | 2012-04-27 | 2015-09-02 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal indicator |
| JP2015106641A (en) * | 2013-11-29 | 2015-06-08 | 日亜化学工業株式会社 | Light emitting device |
| TWI596410B (en) * | 2015-01-31 | 2017-08-21 | Lg 化學股份有限公司 | Backlight unit and display apparatus comprising the same |
| JP6666873B2 (en) * | 2017-03-28 | 2020-03-18 | 株式会社朝日ラバー | Pseudo white LED device and silicone cap |
| CN207424291U (en) * | 2017-09-29 | 2018-05-29 | 合肥惠科金扬科技有限公司 | Backlight and display device |
| KR102150150B1 (en) * | 2017-11-28 | 2020-08-31 | 주식회사 엘지화학 | Color conversion film, and back light unit and display appratus comprising the same |
| CN208141087U (en) * | 2018-05-23 | 2018-11-23 | 昆山龙腾光电有限公司 | A kind of display device |
| CN210573093U (en) * | 2019-07-29 | 2020-05-19 | 瑞仪光电(南京)有限公司 | Light modulation diaphragm, backlight module and display device |
-
2019
- 2019-07-29 CN CN201921209821.0U patent/CN210573093U/en active Active
-
2020
- 2020-05-20 WO PCT/CN2020/091325 patent/WO2021017587A1/en active Application Filing
- 2020-05-20 KR KR1020217018394A patent/KR20220044431A/en active Search and Examination
- 2020-05-20 JP JP2021534157A patent/JP7301134B2/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305803A (en) * | 2019-07-29 | 2021-02-02 | 瑞仪光电(南京)有限公司 | Light modulation diaphragm, backlight module and display device |
| WO2021017587A1 (en) * | 2019-07-29 | 2021-02-04 | 瑞仪光电(南京)有限公司 | Light adjustment film, backlight module, and display apparatus |
| US10989389B2 (en) | 2019-07-29 | 2021-04-27 | Radiant Opto-Electronics Corporation | Light-adjusting film, backlight module, and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021017587A1 (en) | 2021-02-04 |
| JP2022545306A (en) | 2022-10-27 |
| KR20220044431A (en) | 2022-04-08 |
| JP7301134B2 (en) | 2023-06-30 |
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