CN115826294A - Backlight module, display module and display device - Google Patents
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- CN115826294A CN115826294A CN202211631645.6A CN202211631645A CN115826294A CN 115826294 A CN115826294 A CN 115826294A CN 202211631645 A CN202211631645 A CN 202211631645A CN 115826294 A CN115826294 A CN 115826294A
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Abstract
The application provides a backlight unit, display module and display device, wherein backlight unit has light source region and dim light region, and backlight unit includes: a substrate; the array is arranged on one side of the substrate, each light-emitting element is positioned in the light source area, the adjacent light-emitting elements are arranged at intervals, and the brightness of the light source area is greater than that of the dark light area; the light-transmitting film layer is arranged on the light-emitting side of the light-emitting element and is positioned in the light source region and the dark light region; the light sensation material is at least positioned in the light source area of the light transmission film layer, and the refractive index of the light sensation material is increased along with the increase of the light intensity. This application sets up the light sense material through locating corresponding to the light source region at least in the printing opacity rete, and wherein the refracting index of light sense material increases along with the increase of light intensity to the refracting index of the great light of luminance in the light source region can be increased to the light sense material, thereby adjusts the great light of luminance to the dim light region in the light source region, in order to promote the bright intensity in dim light region.
Description
Technical Field
The application relates to the technical field of display devices, in particular to a backlight module, a display module and a display device.
Background
As the application of liquid crystal displays in human life and work becomes more and more widespread, large-sized liquid crystal displays are also becoming more and more common. The sub-millimeter Light-Emitting Diode (Mini LED) backlight module has significant advantages in power consumption, HDR standard, brightness, product reliability, and the like, and thus, in order to save power consumption, a large-sized lcd generally uses the sub-millimeter LED backlight module as a backlight source.
Evenly distributed between the adjacent LED lamp on backlight unit's the lamp plate, but when the quantity of LED lamp was less, when the interval between the LED lamp was great, then caused the dark zone to appear between the adjacent LED lamp easily to lead to backlight unit and display panel's picture taste poor, the picture appears bad tastes such as uneven, shadow relatively easily.
Disclosure of Invention
The application provides a backlight module, a display module and a display device, which aim to solve the problem of uneven brightness of the backlight module.
In one aspect, the present application provides a backlight module, including light source area and dim light area, backlight module includes:
a substrate;
the array is arranged on one side of the substrate, each light-emitting element is positioned in the light source area, two adjacent light-emitting elements are arranged at intervals, and the brightness of the light source area is greater than that of the dark light area;
the light-transmitting film layer is arranged on the light-emitting side of the light-emitting element and covers the light source area and the dark light area;
the light sensation material is at least positioned in the light source area of the light-transmitting film layer, and the refractive index of the light sensation material is increased along with the increase of the light intensity.
In a possible implementation manner of the present application, the light sensation material is distributed on the entire surface of the light-transmitting film layer, and the refractive index of the light sensation material in the light source area is greater than the refractive index of the light sensation material in the dark light area.
In one possible implementation manner of the present application, the dark light area at least includes a first dark area and a second dark area, the brightness of the first dark area is greater than the brightness of the second dark area, and the refractive index of the light sensation material in the first dark area is greater than the refractive index of the light sensation material in the second dark area.
In one possible implementation manner of the present application, the photosensitive material includes at least one of vanadium dioxide, indium tin oxide, ge-Sb-Te series phase change material, or antimony trisulfide.
In one possible implementation of the present application, the light-inductive material has a refractive index ranging from 1.5 to 1.8.
In this application a possible implementation, the printing opacity rete includes the encapsulation glue film, the whole set up in light-emitting component's light-emitting side of encapsulation glue film, the light sense material is located the inside of encapsulation glue film.
In one possible implementation manner of the present application, the light-transmitting film layer is a multi-film layer structure, and the light-sensitive material is located in any one of the light-transmitting film layers;
the light-transmitting film layer comprises at least two film layers of a light splitting film, a diffusion film, a brightness enhancement film and a light conversion film which are stacked along the thickness direction of the substrate.
In one possible implementation manner of the present application, the light-transmitting film layer includes a diffusion plate, and the light-sensitive material is coated on a surface of the diffusion plate facing the substrate, or coated on a surface of the diffusion plate facing away from the substrate.
On the other hand, the application also provides a display module, which comprises a backlight module and a display panel arranged on the backlight module, wherein the backlight module is the backlight module.
On the other hand, the application also provides a display device, which comprises the display module.
The utility model provides a pair of backlight unit, display module and display device, through set up a plurality of light emitting component arrays in backlight unit in one side of base plate, every light emitting component all is located the light source region and adjacent light emitting component interval sets up, thereby the luminance in light source region is greater than the luminance in dark light region, the printing opacity rete sets up in light emitting component's light-emitting side and covers light source region and dark light region, through set up light sense material corresponding to light source region department at least in the printing opacity rete, wherein the refracting index of light sense material increases along with the increase of light intensity, the light sense material can be along with the different automatic matching of light intensity self refracting index, thereby the refracting index of the great light of luminance in light source region can be increased to the dark light region, in order to promote the bright intensity in dark light region, make the bright intensity in backlight unit light source region and the luminance in dark light region even, thereby be favorable to backlight unit evenly luminous, and then be favorable to promoting the optical quality of display frame.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic top view of a backlight module according to an embodiment of the present disclosure.
Fig. 2 is a schematic cross-sectional structure view of a backlight module according to an embodiment of the present disclosure.
FIG. 3 is a schematic diagram illustrating a relationship between refractive index and light intensity variation of photosensitive particles according to an embodiment of the present disclosure.
Fig. 4 is a schematic top view illustrating a backlight module according to another embodiment of the present disclosure.
Fig. 5 is a schematic cross-sectional view illustrating a backlight module according to another embodiment of the present disclosure.
Fig. 6 is a schematic cross-sectional view illustrating a backlight module according to another embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the features of the terms "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. It should be noted that unless otherwise explicitly stated or limited, the terms "connected" and "connected" are to be construed broadly and can include, for example, direct connection, indirect connection through an intermediary, communication between two elements, or interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.
The embodiment of the application provides a backlight module, a display module and a display device, which are respectively described in detail below.
Referring to fig. 1-6, an embodiment of the present invention provides a backlight module having a light source region 101 and a dark light region 102, the backlight module includes a substrate 10, a plurality of light emitting devices 20, and a light transmissive film 30.
As shown in fig. 2, the substrate 10 may include a back plate 11 of the backlight module and a driving circuit layer 12 disposed on the back plate 11, where the driving circuit layer 12 is used to drive the light emitting element 20 to emit light, and the back plate 11 may be a metal back plate 11, an aluminum-plastic back plate 11, or the like.
The plurality of light emitting elements 20 are arranged in an array on one side of the substrate 10. The Light Emitting element 20 may be a Light Emitting Diode (LED). Further, when an LED is used as the light emitting element 20, a miniaturized LED element, such as a Mini LED or a Micro LED, may be used. Of course, the light emitting element 20 may be an ordinary-sized LED, and another type of light emitting element other than the LED may be selected.
As shown in fig. 1, each light emitting element 20 is located in a light source region 101, two adjacent light emitting elements 20 are arranged at intervals, and the brightness of the light source region 101 is greater than that of the dim light region 102. In the present embodiment, the light source region 101 is a region where the light emitting elements 20 are disposed, and the dark light region 102 is a void region between the light emitting elements 20, i.e., a non-light source region. Wherein, the pitch of two adjacent light emitting elements 20 may be 1-5mm, and exemplarily, the pitch of two adjacent light emitting elements 20 may be 3mm.
The light-transmitting film 30 is disposed on the light-emitting side of the light-emitting element 20, and the light-transmitting film 30 covers the light source region 101 and the dark light region 102. The light-transmitting film 30 is used for transmitting light of the light-emitting element 20, and the light-transmitting film 30 is made of a light-transmitting material, which may be a film substrate or an optical film 33 made of a transparent material such as Polymethyl Methacrylate (PMMA) and epoxy resin. The light sensation material 40 is at least located in the light source area 101 of the light-transmitting film 30, and specifically, the light sensation material 40 may be located only in the light source area 101 of the light-transmitting film 30, or may be partially located in the light source area 101 and partially located in the dark light area 102.
In which the refractive index of the photosensitive material 40 becomes larger as the light intensity increases. Specifically, as shown in fig. 3, the light sensation material 40 of the embodiment of the present application may have a linear change or a non-linear change between the refractive index and the light intensity, and is not limited herein. This application can be along with the different automatic characteristics of matching self refracting index of light intensity through utilizing light sense material 40 to this light sense material 40 can increase the refracting index of the great light of luminance in the light source area 101, thereby adjust the great light of luminance to dark light area 102 in the light source area 101, and then can promote the luminance value in dark light area 102 and reduce the luminance value in light source area 101 simultaneously, with this luminance value between balanced dark light area 102 and the light source area 101, thereby the homogeneity of light luminance in the backlight unit has been guaranteed.
The backlight module according to the embodiment of the application, the plurality of light emitting elements 20 are arranged on one side of the substrate 10 in an array manner, each light emitting element 20 is located in the light source region 101, and the adjacent light emitting elements 20 are arranged at intervals, so that the brightness of the light source region 101 is greater than that of the dark light region 102, the light transmitting film layer 30 is arranged on the light emitting side of the light emitting element 20 and covers the light source region 101 and the dark light region 102, the light sensing material 40 is arranged in the light transmitting film layer 30 at least corresponding to the light source region 101, wherein the refractive index of the light sensing material 40 is increased along with the increase of the light intensity, that is, the light sensing material 40 can automatically match the refractive index along with the difference of the light intensity, so that the light sensing material 40 can increase the refractive index of the light with the greater brightness in the light source region 101, so as to adjust the light with the greater brightness in the light source region 101 to the dark light region 102, so as to improve the brightness of the dark light region 102, and thus being beneficial to the uniform illumination of the backlight module and further improving the optical quality of the display picture.
In some embodiments, as shown in fig. 2, the light-sensing material 40 is distributed on the entire surface of the transparent film layer 30, and the refractive index of the light-sensing material 40 in the light source area 101 is greater than the refractive index of the light-sensing material 40 in the dark light area 102. In the embodiment of the present application, the light sensing material 40 is simultaneously formed on the light source region 101 and the dark light region 102 on the light transmitting film layer 30, so that the brightness of the light source region 101 and the dark light region 102 can be simultaneously adjusted by the light sensing material 40.
Specifically, the light intensity of the dim light area 102 is weaker, so that the refractive index of the light sensing material 40 in the dim light area 102 is also reduced, the refractive index of the light with lower brightness in the dim light area 102 can be reduced through the light sensing material 40, the light with lower brightness in the dim light area 102 is concentrated in the dim light area 102, the diffusion degree of the light of the dim light area 102 to the light source area 101 is reduced, the light intensity of the dim light area 102 is improved, the balance between the light intensity of the light source area 101 and the light emitting brightness of the dim light area 102 in the backlight module is further facilitated, and the light emitting uniformity of the backlight module is further improved.
In some embodiments, as shown in fig. 4, the dark light region 102 includes at least a first dark region 1021 and a second dark region 1022, wherein the brightness of the first dark region 1021 is greater than the brightness of the second dark region 1022, and the refractive index of the light sensation material 40 in the first dark region 1021 is greater than the refractive index of the light sensation material 40 in the second dark region 1022.
In this embodiment, the dark light region 102 is a non-light source region, in which the first dark region 1021 is between two adjacent light emitting elements 20, specifically, the first dark region 1021 may be a non-light source region between two light emitting elements 20 disposed at an interval along a length direction X of the substrate or a width direction Y of the substrate, the second dark region 1022 may be a non-light source region between two light emitting elements 20 distributed diagonally, specifically, the second dark region 1022 is a non-light source region enclosed by four first dark regions 1021, that is, the first dark region 1021 is closer to the light source region 101, and the second dark region 1022 is farther from the light source region 101, so that the luminance of the first dark region 1021 is greater than the luminance of the second dark region 1022.
Because the light intensity of the dark light region 102 is weak, and the luminance of the first dark region 1021 is greater than the luminance of the second dark region 1022, the refractive index of the light-sensitive material 40 in the first dark region 1021 is greater than the refractive index of the light-sensitive material 40 in the second dark region 1022, so that the refractive index of the light with higher luminance in the second dark region 1022 can be increased by the light-sensitive material 40, and the refractive index of the light with lower luminance in the second dark region 1022 is reduced, so that the light with lower luminance in the second dark region 1022 is concentrated in the second dark region 1022, and the light with higher luminance in the first dark region 1021 is diffused to the second dark region 1022, thereby improving the luminance balance of the dark light region 102, further making the light intensity of the light source region 101 and the light luminance of the dark light region 102 uniform in the backlight module, and further improving the luminance uniformity of the backlight module.
In some embodiments, the photosensitive material 40 includes vanadium dioxide (VO), indium Tin Oxide (ITO), a Ge-Sb-Te (GTS) based phase change material, or antimony trisulfide (Sb) 3 S 2 ) At least one of (1).
Illustratively, the photosensitive material 40 may be vanadium dioxide, indium tin oxide, or antimony trisulfide. The light-sensitive material 40 may be formed inside the light-transmitting film layer 30 by mixing and doping, and the light-sensitive material 40 may be in the form of particles, for example, by mixing the light-sensitive material particles into the solute of the light-transmitting film layer 30, the light-sensitive particles may be formed inside the light-transmitting film layer 30. Of course, in other embodiments, the photosensitive material 40 may be printed on the surface of the light-transmissive film layer 30 by a coating process or a molding process. Specifically, when the optical material is formed on the surface of the light-transmitting film layer 30, the film layer formed of the optical material has a thickness greater than 0.1mm, so that the optical material can function as a light refraction.
In some embodiments, the light-inductive material 40 has a refractive index in the range of 1.5-1.8. The light sensation material 40 has different refractive indexes in different regions, and for example, the refractive index of the light sensation material 40 in the light source region 101 is 1.8, and the refractive index of the light sensation material 40 in the dark light region 102 is 1.5, or the refractive index of the light sensation material 40 in the light source region 101 is 1.8, the refractive index of the light sensation material 40 in the first dark region 1021 is 1.6, and the refractive index of the light sensation material 40 in the second dark region 1022 is 1.5.
It can be understood that when the refractive index of the light-sensing material 40 in the light source area 101 is too large, the strong light emitted from the light source area 101 may be totally reflected when passing through the light-sensing material 40, thereby causing the light source area 101 to form a dark shadow, and when the refractive index of the light-sensing material 40 in the dark light area 102 is too small, the weak light emitted from the dark light area 102 may be excessively concentrated when passing through the light-sensing material 40, thereby causing the dark light area 102 to form a bright spot, which is not favorable for realizing uniform light emission of the backlight module.
The embodiment of the application controls the refractive index of the light sensing material 40 within a certain range, so that the uneven brightness of the backlight module caused by the overlarge difference of the refractive indexes of different areas can be avoided.
In some embodiments, as shown in fig. 2, the light-transmitting film layer 30 includes an encapsulation adhesive layer 31, the entire surface of the encapsulation adhesive layer 31 is disposed on the light-emitting side of the light-emitting element 20, and the light-sensing material 40 is located inside the encapsulation adhesive layer 31.
Wherein, the packaging adhesive layer 31 can be made of glue materials such as epoxy resin or silica gel, and the packaging adhesive layer 31 is used for packaging the light emitting element 20, thereby playing a role in sealing and protecting the light emitting element 20, being beneficial to realizing the planarization of the light emitting element 20, and improving the light emitting effect. The light sensation material 40 of the embodiment of the application can be doped in the glue material, so that when the whole surface of the plurality of light emitting elements 20 is coated with glue to form the packaging glue layer 31, the light sensation material 40 can be formed inside the packaging glue layer 31, and then the brightness of the light source region 101 and the brightness of the shadow region can be adjusted through the light sensation material 40 in the packaging glue layer 31, so that the packaging glue layer 31 can play a role in protecting and flattening the light emitting elements 20, and the uniform light emitting effect of the backlight module is facilitated. In addition, the light sensing material 40 is formed inside the packaging adhesive layer 31, so that an additional film layer is not required to be added, and the thickness of the backlight module is not additionally increased.
In some embodiments, as shown in fig. 5, the light-transmissive film layer 30 includes a diffusion plate 32, and the light-sensitive material 40 is coated on a side of the diffusion plate 32 facing the substrate 10, or the light-sensitive material 40 is coated on a side of the diffusion plate 32 facing away from the substrate 10. Since the diffusion plate 32 is made of a transparent material, the light-sensitive material 40 can be disposed on one surface of the diffusion plate 32 facing the substrate 10 or the other surface thereof facing away from the substrate 10. The optical film layer 33 can be formed on the surface by a coating process or a molding process, which is beneficial to simplifying the implementation process.
It should be noted that the light-inductive material 40 may also be distributed inside the diffusion plate 32, and is not limited herein.
In some embodiments, as shown in fig. 6, the transparent film layer 30 is a multi-film structure, and the light-sensing material 40 is located in any one of the transparent film layers 30. Specifically, the optical film layer 33 may be formed on the surface by a coating process or a molding process, which is advantageous to simplify the implementation process.
The light-transmitting film layer 30 includes at least two film layers of a light splitting film, a diffusion film, a brightness enhancement film, and a light conversion film, which are stacked in a thickness direction of the substrate 10. In the embodiment of the present application, the light-transmitting film 30 is an optical film 33, and is used for improving the light-emitting efficiency of the backlight module. Illustratively, the light-transmitting film layer 30 of the embodiment of the present application may include a diffusion film 331 and a brightness enhancement film 332 stacked along a thickness direction of the substrate 10. Among them, the diffusion film 331 may be used to enhance the uniformity of light emission of the surface light source formed by the plurality of light emitting elements 20, and the brightness enhancement film 332 may be used to improve the brightness of light emitted from the light emitting elements 20. Correspondingly, the light-sensing material 40 can be disposed on the diffusion film 331, or the light-sensing material 40 can be disposed on the brightness enhancement film 332.
When the light emitting element 20 is a blue LED chip, the light transmitting film 30 may further include a light conversion film, the light conversion film may be any one of a Quantum Dot (QD) film or a phosphor film, and taking the light conversion film as the quantum film as an example, the blue light emitted by the blue LED chip respectively emits red light and green light by exciting red quantum dots and green quantum dots, so that the red light, the green light and the blue light are mixed to generate white light, which is beneficial to realizing a wide color gamut of backlight.
On the other hand, in order to better implement the backlight module of the present application, an embodiment of the present application further provides a display module, which includes the backlight module of any one of the above embodiments and a display panel disposed on the backlight module. In the embodiment of the present application, the display panel may be a liquid crystal display panel, and the display panel is disposed on the light emitting side of the backlight module. Since the display module has the display panel, all the same beneficial effects are achieved, and the description of the embodiment is omitted.
On the other hand, in order to better implement the backlight module of the present application, an embodiment of the present application further provides a display device, including the display module of any one of the above embodiments. Since the display device has the display panel, all the same advantages are achieved, and the description of the embodiment is omitted.
The embodiment of the application is not specifically limited in application of the display Device, and the display Device can be a handheld Device (a smart phone, a tablet computer, and the like), a wearable Device (a smart band, a wireless headset, a smart watch, smart glasses, and the like), an on-board Device (a navigator, an auxiliary backing system, a vehicle data recorder, an on-board refrigerator, and the like), a virtual reality Device, an augmented reality Device, a Terminal Device (a Terminal Device), and the like, and is not limited herein.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing method embodiment, which is not described herein again.
The backlight module, the display module and the display device provided by the embodiment of the present application are described in detail above, and specific examples are applied herein to explain the principle and implementation manner of the embodiment of the present application, and the description of the embodiment above is only used to help understand the technical solution and the core idea of the embodiment of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A backlight module is characterized by comprising a light source area and a dark light area, and the backlight module comprises:
a substrate;
the array is arranged on one side of the substrate, each light-emitting element is positioned in the light source area, two adjacent light-emitting elements are arranged at intervals, and the brightness of the light source area is greater than that of the dark light area;
the light-transmitting film layer is arranged on the light-emitting side of the light-emitting element and is positioned in the light source area and the dark light area;
the light sensation material is at least positioned in the light source area of the light-transmitting film layer, and the refractive index of the light sensation material is increased along with the increase of light intensity.
2. The backlight module as claimed in claim 1, wherein the light-sensitive material is distributed over the entire surface of the light-transmissive film layer, and the refractive index of the light-sensitive material in the light source region is greater than the refractive index of the light-sensitive material in the dark light region.
3. The backlight module as claimed in claim 2, wherein the dark region comprises at least a first dark region and a second dark region, the first dark region has a brightness greater than that of the second dark region, and the index of refraction of the photosensitive material in the first dark region is greater than that in the second dark region.
4. The backlight module as claimed in claim 1, wherein the photosensitive material comprises at least one of vanadium dioxide, indium tin oxide, ge-Sb-Te phase change material, or antimony trisulfide.
5. The backlight module as claimed in claim 1, wherein the light-inductive material has a refractive index ranging from 1.5 to 1.8.
6. The backlight module according to any of claims 1-5, wherein the light-transmissive film layer comprises a packaging adhesive layer, the whole surface of the packaging adhesive layer is disposed on the light-emitting side of the light-emitting element, and the light-sensitive material is disposed inside the packaging adhesive layer.
7. The backlight module according to any of claims 1-5, wherein the light-transmissive film layer has a multi-film structure, and the light-sensitive material is disposed in any one of the light-transmissive film layers;
the light-transmitting film layer comprises at least two film layers of a light splitting film, a diffusion film, a brightness enhancement film and a light conversion film which are stacked along the thickness direction of the substrate.
8. The backlight module according to any of claims 1-5, wherein the light transmissive film layer comprises a diffuser plate, and the light sensitive material is coated on a side of the diffuser plate facing the substrate or coated on a side of the diffuser plate facing away from the substrate.
9. A display module, comprising a backlight module and a display panel disposed on the backlight module, wherein the backlight module is the backlight module according to any one of claims 1 to 8.
10. A display device comprising the display module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211631645.6A CN115826294B (en) | 2022-12-19 | 2022-12-19 | Backlight module, display module and display device |
Applications Claiming Priority (1)
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| US5451980A (en) * | 1993-10-19 | 1995-09-19 | The University Of Toledo | Liquid crystal flat panel color display with surface plasmon scattering |
| EP1731950A1 (en) * | 1998-10-08 | 2006-12-13 | NEC Corporation | Flat panel display |
| CN101620356A (en) * | 2008-06-30 | 2010-01-06 | 松下电器产业株式会社 | Optical apparatus, and wavelength conversion laser light source, image display apparatus, and laser light source device adopting such optical apparatus |
| CN211403045U (en) * | 2020-03-10 | 2020-09-01 | 昆山龙腾光电股份有限公司 | Backlight module and display device |
| CN112130376A (en) * | 2020-09-24 | 2020-12-25 | 安徽晟华光学科技有限公司 | Reflection film for improving backlight brightness uniformity of display device |
| CN113189804A (en) * | 2021-04-19 | 2021-07-30 | 中国科学院上海光学精密机械研究所 | Self-adaptive beam shaping device for dodging |
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| US5451980A (en) * | 1993-10-19 | 1995-09-19 | The University Of Toledo | Liquid crystal flat panel color display with surface plasmon scattering |
| EP1731950A1 (en) * | 1998-10-08 | 2006-12-13 | NEC Corporation | Flat panel display |
| CN101620356A (en) * | 2008-06-30 | 2010-01-06 | 松下电器产业株式会社 | Optical apparatus, and wavelength conversion laser light source, image display apparatus, and laser light source device adopting such optical apparatus |
| CN211403045U (en) * | 2020-03-10 | 2020-09-01 | 昆山龙腾光电股份有限公司 | Backlight module and display device |
| CN112130376A (en) * | 2020-09-24 | 2020-12-25 | 安徽晟华光学科技有限公司 | Reflection film for improving backlight brightness uniformity of display device |
| CN113189804A (en) * | 2021-04-19 | 2021-07-30 | 中国科学院上海光学精密机械研究所 | Self-adaptive beam shaping device for dodging |
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