CN112433408A - Display device - Google Patents

Display device Download PDF

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Publication number
CN112433408A
CN112433408A CN202011505398.6A CN202011505398A CN112433408A CN 112433408 A CN112433408 A CN 112433408A CN 202011505398 A CN202011505398 A CN 202011505398A CN 112433408 A CN112433408 A CN 112433408A
Authority
CN
China
Prior art keywords
diffusion plate
light
display device
side wall
plate support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011505398.6A
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Chinese (zh)
Inventor
袁光军
张继兵
高上
马骥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hisense Visual Technology Co Ltd
Original Assignee
Hisense Visual Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hisense Visual Technology Co Ltd filed Critical Hisense Visual Technology Co Ltd
Priority to CN202011505398.6A priority Critical patent/CN112433408A/en
Publication of CN112433408A publication Critical patent/CN112433408A/en
Pending legal-status Critical Current

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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
    • G02F1/133605—Direct backlight including specially adapted 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
    • 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
    • G02F1/133608—Direct backlight including particular frames or supporting means

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

The invention provides a display device. The display device includes: a plurality of light sources, a three-dimensional reflection sheet, a diffusion plate and a diffusion plate support; wherein the light source is used for emitting light; the three-dimensional reflector plate at least comprises a light cavity unit; the light cavity unit comprises a bottom surface and at least one first side wall, part or all of the diffusion plate support is used as the first side wall, and the bottom surface is provided with at least one light source; the diffuser plate support is used for supporting the diffuser plate. The diffusion plate support in the embodiment of the invention is low in fixing difficulty.

Description

Display device
The present application is a divisional application of chinese patent application 201811590567.3 entitled "display device" filed on 12, 20/2018.
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
With the development of display technology, people have increasingly high requirements on display devices. The display device comprises a backlight module, and the contrast of each light-emitting area in the backlight module is very important for the display effect of the display device.
In the related art, a backlight module includes: the backlight module comprises a back plate and a light source arranged on the back plate. For the direct type backlight module, the backlight module is usually divided into a plurality of backlight sub-regions, and in order to improve the contrast between the brightness of the adjacent light emitting regions, a three-dimensional reflective sheet is disposed on the light source. The three-dimensional reflector comprises a plurality of light cavities arranged in an array, each light cavity comprises a bottom surface and four side walls, and the light source is located on the bottom surface of each light cavity. Due to the fact that the three-dimensional reflector plate changes in the shape of the light cavity after being formed, light can be transmitted suddenly, and therefore local position contrast deviation is caused. Therefore, the side walls of the light cavity cannot be damaged after the light cavity is formed, and only holes can be drilled on the bottom surface for fixing the diffusion plate support of the diffusion plate. However, the hole breaking at the bottom surface is also limited by the structure of the side wall, and the diffusion plate holder can be fixed only by breaking a hole at a position close to the light source. Therefore, in the scheme, the fixing space of the diffusion plate support is small, and the fixing difficulty is high.
Disclosure of Invention
The invention provides a display device, which aims to reduce the fixing difficulty of a diffusion plate bracket.
In a first aspect, the present invention provides a display device comprising:
a plurality of light sources, a three-dimensional reflection sheet, a diffusion plate and a diffusion plate support;
wherein the light source is used for emitting light;
the three-dimensional reflector plate at least comprises a light cavity unit;
the light cavity unit comprises a bottom surface and at least one first side wall, part or all of the diffusion plate support is used as the first side wall, and the bottom surface is provided with at least one light source;
the diffuser plate support is used for supporting the diffuser plate.
In an embodiment of the invention, the light cavity unit further includes a second sidewall other than the first sidewall, and the diffuser plate holder has a height greater than a height of the second sidewall.
In an embodiment of the present invention, the diffuser plate holder includes a base and a support portion;
the supporting part is located the base is kept away from the one end of bottom surface, the base is kept away from the one end of supporting part with the bottom surface contact, the base with the shape of second lateral wall is the same.
In an embodiment of the invention, a contact area of the supporting portion and the diffusion plate is smaller than a contact area of the base and the bottom surface.
In an embodiment of the present invention, the base and the supporting portion are integrally formed; or the base and the supporting part are connected through a connecting piece.
In an embodiment of the invention, an included angle between the diffusion plate holder and/or the second sidewall and the bottom surface is determined according to a light emitting angle of the light source.
In an embodiment of the present invention, the method further includes:
the lamp comprises a back plate and a lamp panel arranged on the back plate;
wherein, the light source equipment is in on the lamp plate.
In an embodiment of the invention, the lamp panel is a flexible printed circuit board (FPC) or a Printed Circuit Board (PCB).
In an embodiment of the present invention, a through hole is formed on the bottom surface;
the diffuser plate support passes through the through-hole is fixed on the lamp plate.
In an embodiment of the invention, the diffuser plate holder is made of polymethyl methacrylate PMMA.
In an embodiment of the present invention, the display device is a television.
The display device provided by the embodiment of the invention comprises: a plurality of light sources, a three-dimensional reflection sheet, a diffusion plate and a diffusion plate support; wherein the light source is used for emitting light; the three-dimensional reflector plate at least comprises a light cavity unit; the light cavity unit comprises a bottom surface and at least one first side wall, part or all of the diffusion plate support is used as the at least one first side wall, the bottom surface is provided with at least one light source, the diffusion plate support is used for supporting the diffusion plate, and part or all of the diffusion plate support is used as the side wall of the light cavity unit, namely the diffusion plate support occupies the position of the at least one light cavity side wall, and the area of the position of the diffusion plate support is larger, so that the difficulty in fixing the diffusion plate support is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic partial structure diagram of a display device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a partial structure of another embodiment of a display device according to the present invention;
FIG. 3 is a schematic structural diagram of a three-dimensional reflective sheet according to an embodiment of the display device of the invention;
FIG. 4 is a schematic structural diagram of another embodiment of a display device according to the present invention;
FIG. 5 is a schematic diagram of a partial cross-sectional structure of another embodiment of a display device according to the present invention;
fig. 6 is a schematic structural diagram of another embodiment of a display device provided by the present invention.
Description of reference numerals:
11. an optical cavity unit;
111. a bottom surface;
112. a first side wall;
113. a diffuser plate support;
114. a second side wall;
1131. a base;
1132. a support portion;
1. a back plate;
2. a light source;
3. a diffusion plate;
4. an optical film;
5. a display panel.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terms "comprising" and "having," and any variations thereof, in the description and claims of this invention and the drawings described herein are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Firstly, the application scene related to the invention is introduced:
the display device provided by the embodiment of the invention is applied to a direct type display device.
At present, the stereo reflector is an effective scheme for improving the contrast ratio of the liquid crystal display device under the same picture, namely, a light source in the backlight module is emitted out through the stereo reflector. The three-dimensional reflector comprises a plurality of light cavities arranged in an array, each light cavity comprises a bottom surface and four side walls, and the light source is located on the bottom surface of each light cavity. The three-dimensional reflector plate generally forms each optical cavity through a plastic suction mold, and the change of the shape of the optical cavity after molding can cause sudden change of light transmission, thereby causing the deviation of local position contrast. Therefore, the side walls of the light cavity cannot be damaged after the light cavity is formed, and only holes can be drilled on the bottom surface for fixing the diffusion plate support.
However, the hole breaking at the bottom surface is also limited by the structure of the side wall, and the diffusion plate holder can be fixed only by breaking a hole at a position close to the light source. Therefore, in the scheme, the fixing space of the diffusion plate support is small, and the fixing difficulty is high. And the diffuser plate support can not distribute evenly between the LED lamps of the light source, and the light rays emitted by the LEDs at the adjacent positions of the light source for receiving and reflecting are uneven, so that the support shadow is easy to appear. On the other hand, if the diffuser plate is directly supported by the sidewalls of the three-dimensional reflection sheet without using the diffuser plate holder to support the diffuser plate, there are the following problems: firstly, under the upright state of the backlight module, the middle position of the diffusion plate in the light cavity can be inclined forward, the peripheral positions are still contacted with the side wall of the three-dimensional reflector plate under the limitation of the rubber frame, the light rays at the contact position of the diffusion plate and the three-dimensional reflector plate can not irradiate to generate shadows, and the shadows are inconsistent and difficult to eliminate; secondly, the three-dimensional reflector plate is directly stressed and is easy to generate local deformation in the transportation and carrying processes.
According to the display device provided by the embodiment of the invention, the diffusion plate support is arranged at the side wall position of the original light cavity, so that the area of the bottom surface where the diffusion plate support is arranged is larger, and the difficulty in fixing the diffusion plate support is reduced.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 1 is a schematic partial structure diagram of a display device according to an embodiment of the present invention. As shown in fig. 1, the display device provided in this embodiment includes:
a plurality of light sources, a three-dimensional reflection sheet, a diffusion plate, and a diffusion plate holder 113;
wherein, the light source is used for emitting light;
the three-dimensional reflector plate at least comprises a light cavity unit 11;
the light cavity unit 11 includes a bottom surface 111 and at least one first sidewall 112, a part or all of the diffuser plate holder 113 serves as the at least one first sidewall 112, and the bottom surface 111 is provided with at least one light source;
the diffuser plate holder 113 serves to support a diffuser plate.
The display device may include a backlight module and a display panel, the backlight module is located at the light incident side of the display panel to serve as a light source of the display panel, because the display panel does not emit light itself, but requires the backlight module to provide a uniform surface light source, and performs display by modulating light. The Light source is generally a Light Emitting Diode (LED). The backlight module is generally divided into a plurality of backlight partitions, and in order to improve the contrast between the brightness of adjacent light emitting areas and reduce the influence between the brightness of the adjacent light emitting areas, a three-dimensional reflector is arranged on the light source and reflects the light emitted by the light source.
As shown in fig. 1, the stereoscopic reflective sheet includes a light cavity unit 11; the light cavity unit includes at least a bottom surface 111 and at least one first sidewall 112, the bottom surface 111 is provided with at least one light source, a part or all of a diffuser bracket 113 serves as the at least one first sidewall 112, and the diffuser bracket 113 serves as the at least one first sidewall 112. The position indicated by A in the figure is the position of the light source.
As shown in fig. 2, the light cavity unit 11 may further include a second sidewall 114 in addition to the first sidewall 112, for example, the total number of the second sidewall 114 and the first sidewall 112 served by the diffuser bracket 113 is four, and the light cavity unit 11 is provided with at least one light source, for example, only one light source.
The number of the light cavity units can be multiple, and the multiple light cavity units are arranged in an array.
The diffusion plate support is profiled according to the side wall structure of the optical cavity of the three-dimensional reflector plate, is used for replacing the side wall of the optical cavity of the three-dimensional reflector plate, and is molded by adopting an injection molding process.
In an embodiment of the present invention, the bracket may be made of polymethyl methacrylate (PMMA), so that the influence on light may be reduced to optimize the bracket shadow problem.
Specifically, the position of the lower diffusion plate support is determined at the beginning of the design of the plastic suction mould of the three-dimensional reflector plate, and the shape of the diffusion plate support is determined when the light cavity of the three-dimensional reflector plate is shaped according to the light emitting angle of the LED. The diffuser plate holder is not formed by plastic molding at the designed position, but is changed to be flat, that is, the diffuser plate holder is positioned in the light cavity unit 11. As shown in fig. 3.
Wherein the first side wall or the second side wall may be common to adjacent optical cavity units as shown in fig. 1 and 3.
In an embodiment of the invention, an included angle between the diffusion plate support and/or the second side wall and the bottom surface is determined according to a light emitting angle of the light source;
specifically, the included angle between the diffusion plate support and the bottom surface is determined according to the light emitting angle of the light source, and the included angle between the second side wall of the light cavity unit and the bottom surface may also be determined according to the light emitting angle of the light source, for example, the shape of the second side wall of the light cavity unit is determined according to the light emitting angle of the light source, and the shape of the diffusion plate support imitates the shape of the second side wall.
The backlight module of the embodiment comprises: a plurality of light sources, a three-dimensional reflection sheet and a diffusion plate support; wherein the light source is used for emitting light; the three-dimensional reflector plate at least comprises a light cavity unit; the light cavity unit comprises a bottom surface and at least one first side wall, part or all of the diffusion plate support is used as the at least one first side wall, the bottom surface is provided with at least one light source, the diffusion plate support supports the diffusion plate, the side wall of the light cavity at the position where the diffusion plate support is arranged is removed according to the determined position of the diffusion plate support, and the part or all of the diffusion plate support is used as the side wall, so that the difficulty in fixing the diffusion plate support is reduced due to the fact that the area at the position of the diffusion plate support is large.
On the basis of the above embodiments, optionally, as shown in fig. 2, 4, and 5, in order to effectively support the diffuser plate and avoid the influence on the stereoscopic reflective sheet, the height of the diffuser plate support 113 is greater than that of the second sidewall 114.
The diffuser plate support 113 may specifically include a base 1131 and a support 1132;
the support portion 1132 is located at one end of the base 1131 far from the bottom surface 111, one end of the base 1131 far from the support portion 1132 is in contact with the bottom surface 111, and the shape of the base 1131 is the same as that of the second side wall 114;
further, the contact area of the supporting portion 1132 and the diffusion plate is smaller than the contact area of the base 1131 and the bottom surface 111.
Specifically, the diffuser bracket is higher than the height of the optical cavity of the three-dimensional reflective sheet, i.e., higher than the height of the second sidewall 114, and the diffuser bracket is completely used to support the diffuser plate. The base portion of the diffuser plate in this embodiment may serve as the first sidewall 112.
The base of the diffusion plate support is subjected to profile modeling design to imitate the second side wall 114 of the light cavity in the space from the bottom of the diffusion plate support to the height of the light cavity of the three-dimensional reflector plate, so that the light cavity is formed, light leakage is avoided, the size of the diffusion plate support is reduced at the supporting part higher than the light cavity of the three-dimensional reflector plate (namely higher than the second side wall 114), the contact area between the diffusion plate support and the diffusion plate is reduced, and the support shadow is avoided.
The supporting part and the base can be integrally formed, or the base and the supporting part can be connected through a connecting piece, namely the supporting part is connected to the base.
The connecting piece can be a fastener such as a screw or an adhesive such as glue.
As shown in fig. 4 and 5, the supporting portion is a cone-shaped structure, the bottom end of the cone-shaped structure is located on the base, and the top end of the cone-shaped structure is used for supporting the diffuser plate.
Fig. 5 is a schematic cross-sectional view of a diffuser plate holder, in which the support portion has a tapered structure, so as to reduce the contact area between the diffuser plate holder and the diffuser plate and prevent the holder from generating a dark shadow.
In this embodiment, the base of the diffusion plate holder is designed to follow the second sidewall of the light cavity in the space from the bottom of the diffusion plate holder to the height of the light cavity of the three-dimensional reflection sheet, so as to form the light cavity to avoid light leakage, and the size of the diffusion plate holder is reduced at the supporting portion higher than the light cavity of the three-dimensional reflection sheet (i.e., higher than the second sidewall), so as to reduce the contact area between the diffusion plate holder and the diffusion plate, and avoid the occurrence of holder shadows.
On the basis of the above embodiment, optionally, as shown in fig. 4, the display device of the present embodiment includes: the lamp comprises a back plate 1, a lamp panel arranged on the back plate 1 and a diffusion plate 3;
wherein, light source 2 assembles on the lamp plate.
The lamp panel is a Flexible Printed Circuit (FPC) or a Printed Circuit Board (PCB).
In particular, the light source may be implemented by an LED lamp. The LED lamp is assembled on the FPC or the PCB.
Furthermore, a through hole is arranged on the bottom surface between the at least two light sources;
the diffuser plate support 113 is fixed to the lamp panel through a through hole.
Specifically, the position of the diffusion plate support placed on the determined bottom surface can be dug to expose the back plate or the lamp panel for fixing the diffusion plate support.
The diffuser plate support can use the hot melt adhesive to fix on the lamp plate when the lamp plate carries out Surface Mounted Technology (SMT for short) Technology, is about to fix the base of diffuser plate support on the lamp plate.
After the diffusion plate support is fixed on the lamp panel, the reflector plate is directly sleeved in the diffusion plate support.
Fig. 6 is a schematic structural diagram of another embodiment of the display device provided in the present invention, as shown in fig. 6, the display device of this embodiment may further include: the optical film 4 and the display panel 5, as further shown in fig. 6, may include: the lamp comprises a back plate 1, a lamp panel arranged on the back plate 1 and a diffusion plate 3; the three-dimensional reflector plate at least comprises one optical cavity unit; the light chamber unit includes a bottom surface and at least one first sidewall, a part or all of the diffuser plate holder 113 serves as the at least one first sidewall, and the diffuser plate holder 113 is used to support the diffuser plate; wherein, light source 2 assembles on the lamp plate, and is located the bottom of three-dimensional reflector plate.
The number of the light cavity units can be multiple, and the multiple light cavity units are arranged in an array.
Further, in order to effectively support the diffuser plate from the influence of the stereoscopic reflective sheet, the height of the diffuser plate holder 113 may be greater than that of the second sidewall 114.
Further, the liquid crystal display panel comprises a shell, the display panel can be a liquid crystal display panel, the backlight module and the liquid crystal display panel are both arranged in the shell, and the backlight module and the liquid crystal display panel are arranged oppositely. The backlight module is provided with a light-emitting surface, and the light-emitting surface is arranged opposite to the liquid crystal display panel and can provide a uniform surface light source for the liquid crystal display panel. The structure, function and function of the backlight module have been described in detail in the foregoing embodiments, and are not described herein again.
Further, the housing may generally include a front frame and a rear frame, and the liquid crystal display panel is disposed in the front frame, and the backlight module is generally located in the rear frame.
In this embodiment, the display device includes a housing, a display panel, and a backlight module, where the backlight module and the display panel are both disposed in the housing, and the backlight module is disposed opposite to the liquid crystal display panel. Wherein, backlight unit includes: a plurality of light sources, a three-dimensional reflection sheet, a diffusion plate and a diffusion plate support; wherein the light source is used for emitting light; the three-dimensional reflector plate at least comprises a light cavity unit; the light cavity unit comprises a bottom surface and at least one first side wall, part or all of the diffusion plate support is used as the at least one first side wall, the bottom surface is provided with at least one light source, the diffusion plate support supports the diffusion plate, the side wall of the light cavity at the position where the diffusion plate support is arranged is removed according to the determined position of the diffusion plate support, and the part or all of the diffusion plate support is used as the side wall, so that the difficulty in fixing the diffusion plate support is reduced due to the fact that the area at the position of the diffusion plate support is large.
The implementation principle and technical effect of the apparatus of this embodiment are similar to those described in the foregoing embodiments, and are not described herein again.
For example, the display device may include: any product or component with a display function, such as a liquid crystal display device, a smart phone, a tablet computer, a television, a display, a notebook computer, a navigator and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (9)

1. A display device, comprising:
a plurality of light sources, a three-dimensional reflection sheet, a diffusion plate and a diffusion plate support;
wherein the light source is used for emitting light;
the three-dimensional reflector plate at least comprises a light cavity unit;
the light cavity unit comprises a bottom surface and at least one first side wall, part or all of the diffusion plate support is used as the first side wall, and the bottom surface is provided with at least one light source;
the diffusion plate support is used for supporting the diffusion plate; the position of the diffusion plate support is a plane;
the light cavity unit further includes a second sidewall other than the first sidewall, and a height of the diffuser plate holder is greater than a height of the second sidewall; the bottom surface and the second side wall are integrally formed, the first side wall is connected to the bottom surface, the second side wall comprises a first sub side wall and a second sub side wall, and the first sub side wall is connected with the second sub side wall;
the diffuser plate support comprises a base and a supporting portion, the supporting portion is located at one end, far away from the bottom surface, of the base, and one end, far away from the supporting portion, of the base is in contact with the bottom surface.
2. The display device according to claim 1, wherein an area of the support portion in contact with the diffusion plate is smaller than an area of the support portion in contact with the chassis.
3. The display device according to claim 1 or 2,
the base and the supporting part are integrally formed; or the base and the supporting part are connected through a connecting piece.
4. The display device according to claim 1 or 2,
the included angle between the diffusion plate support and/or the second side wall and the bottom surface is determined according to the light-emitting angle of the light source.
5. The display device according to claim 1 or 2, further comprising:
the lamp comprises a back plate and a lamp panel arranged on the back plate;
wherein, the light source equipment is in on the lamp plate.
6. The display device according to claim 1, wherein the bottom surface is provided with a through hole;
the diffuser plate support passes through the through-hole is fixed on the lamp plate.
7. The display device according to claim 1 or 2,
the diffusion plate support is made of polymethyl methacrylate (PMMA).
8. A display device as claimed in any one of claims 1, 2 or 6, characterized in that the display device is a television set.
9. The display device according to claim 1, wherein the base and the second sidewall have the same shape.
CN202011505398.6A 2018-12-20 2018-12-20 Display device Pending CN112433408A (en)

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US11119269B2 (en) 2019-06-27 2021-09-14 Wuhan China Star Optoelectronics Technology Co., Ltd. Lamp panel assembly and display device
CN110322787A (en) * 2019-06-27 2019-10-11 武汉华星光电技术有限公司 Lamp plate component and display device
CN112859446A (en) * 2021-03-01 2021-05-28 业成科技（成都）有限公司 Display device and backlight module thereof
WO2024050937A1 (en) * 2022-09-06 2024-03-14 瑞仪(广州)光电子器件有限公司 Direct type backlight module having diffusion plate supporting function and display

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