WO2020077972A1 - 显示装置 - Google Patents

显示装置 Download PDF

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Publication number
WO2020077972A1
WO2020077972A1 PCT/CN2019/083879 CN2019083879W WO2020077972A1 WO 2020077972 A1 WO2020077972 A1 WO 2020077972A1 CN 2019083879 W CN2019083879 W CN 2019083879W WO 2020077972 A1 WO2020077972 A1 WO 2020077972A1
Authority
WO
WIPO (PCT)
Prior art keywords
display device
engaging portion
plate
support
optical element
Prior art date
Application number
PCT/CN2019/083879
Other languages
English (en)
French (fr)
Inventor
杨晓光
马吉航
Original Assignee
青岛海信电器股份有限公司
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 青岛海信电器股份有限公司 filed Critical 青岛海信电器股份有限公司
Priority to US16/582,598 priority Critical patent/US20200124903A1/en
Publication of WO2020077972A1 publication Critical patent/WO2020077972A1/zh

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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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames

Definitions

  • the present application relates to the technical field of liquid crystal display, in particular to a display device.
  • the backlight module can supply sufficient brightness and uniformly distributed light sources, so that the LCD can display normally.
  • a general direct-lit backlight module usually includes components such as a backplane, optical elements, plastic frames, liquid crystal panel and front frame.
  • a plastic frame is used to fix the liquid crystal panel and optical components at the same time, the traditional plastic frame is often used to splice and integrate Plastic frame and other programs.
  • the present application provides a display device, including a backplane, an optical element group, a liquid crystal panel, and a support;
  • the optical element group includes a plurality of optical elements stacked in sequence
  • the backplane includes a bottom plate, and the edge of the bottom plate faces the A side plate formed by one side of the bottom plate is extended, the support member is provided at at least two corners of the back plate, and the liquid crystal panel is provided at a side of the support member away from the bottom plate.
  • the present application provides a display device including a back plate, an optical element group, a liquid crystal panel, and a support.
  • the back plate includes a bottom plate and a side plate formed by an edge of the bottom plate extending toward one side of the bottom plate.
  • the optical element group includes a plurality of stacked optical elements, the support member is provided at at least two corners of the back plate, and the liquid crystal panel is provided at a side of the support member away from the bottom plate, wherein the The bottom plate has a protruding portion protruding toward the light exit side of the optical element group near the side plate, and the protruding portion is supported on the edge of the optical element group.
  • FIG. 1 is a schematic structural diagram of a related art LCD TV using a direct type backlight module
  • FIG. 2 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a backplane in a display device provided by an embodiment of this application.
  • FIG. 4 is a schematic cross-sectional view of a back plate in a display device provided by an embodiment of this application;
  • FIG. 5 is an assembled schematic view and a partially enlarged schematic view of a support member and a back plate provided by an embodiment of this application;
  • FIG. 6 is a schematic structural diagram of a support member provided by an embodiment of the present application.
  • FIG. 7 is a partial structural diagram of a backplane provided by an embodiment of the present application.
  • FIG. 8 is a schematic cross-sectional view of the connection between the support and the back plate
  • FIG. 9 is a schematic cross-sectional view of a partial structure of a display device provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of an optical element group provided by an embodiment of the present application.
  • FIG. 11 is an exploded view of a display device provided by an embodiment of the application.
  • FIG. 1 is a schematic structural diagram of a related art LCD TV using a direct type backlight module.
  • the LCD TV of the direct backlight module is mainly composed of a back plate 100, an optical element 200, a plastic frame 300, a liquid crystal panel 400 and a front frame 500, wherein the optical element 200 includes a diffusion plate 201 and an optical film Piece 202 and so on.
  • the back plate 100 carries the optical elements 200 such as the diffusion plate 201 and the optical film 202, and the plastic frame 300 is located on the side of the liquid crystal panel 400 and the optical element 200, and one side of the plastic frame 300 is used to carry the liquid crystal panel 400 Is in contact with the liquid crystal panel 400, and the opposite side of the plastic frame 300 can be used to limit and support the optical element 200.
  • the front frame 500 is connected to the outside of the plastic frame 300 and provides protection for the plastic frame 300.
  • the present application provides a display device to overcome the problem of a thicker backlight module, and to improve the production efficiency of the backlight module while reducing the production cost.
  • the display device provided by the present application includes a back plate 1, an optical element group 2, a liquid crystal panel 3 and a support 4; the optical element group 2 includes a plurality of optical elements stacked in sequence, and the back plate 1 includes a bottom plate 11 With the side plate 12 formed by the edge of the bottom plate 11 extending toward the side of the bottom plate 11, the support 4 is provided at the corner of the back plate 1, and the liquid crystal panel 3 is provided on the side of the support 4 away from the bottom plate 11.
  • the display device further includes a front frame 5 connected to the outer side of the back plate 1.
  • the display device further includes a front frame 5.
  • the front frame 5 is disposed at an edge portion of the backboard 1, that is, outside the side plate 12, and the portion of the front frame 5 on the side of the liquid crystal panel 3 extends to the liquid crystal panel 3. Edge part.
  • the front frame 5 connects the side panel 12 of the backplane 1, part of the support 4 and the liquid crystal panel 3 to form the backplane 1, the support 4, the optical element group 2 and the liquid crystal panel 3 as a whole, and passes through the front frame 5
  • the components of the display device are formed as a whole.
  • the display device in this embodiment may be a liquid crystal television or a liquid crystal display.
  • the display device provided in this embodiment is provided with a backplane 1, an optical element group 2 and a liquid crystal panel 3 in order from the backplane 1 side.
  • the back plate 1 is composed of a bottom plate 11 covering the front surface of the optical element group 2 and a side plate 12 protected on the side of the optical element group 2.
  • the backlight module also includes a support member 4, the support member 4 is disposed at the corner of the back plate 1, the liquid crystal panel 3 is located on the support member 4, and directly contacts the support member 4, so that the liquid crystal panel only needs to use the support member 4 to obtain Support, and the support member 4 is a partial support structure, the overall size and occupied space are smaller than the overall support structure such as the plastic frame, and the overall thickness of the backlight module can be reduced.
  • the support member 4 located at the corner of the liquid crystal panel 3 is used to replace the original plastic frame surrounding the liquid crystal panel, thereby saving materials, reducing production costs, and having low assembly difficulty.
  • the display device provided by the present invention includes a back plate, an optical element group, a liquid crystal panel and a support;
  • the optical element group includes a plurality of stacked optical elements
  • the back plate includes a bottom plate and a side extending from the edge of the bottom plate to one side of the bottom plate
  • the board and the supporting member are arranged at at least two corners of the back plate, and the liquid crystal panel is arranged on the side of the supporting member away from the bottom board.
  • FIG. 3 is a schematic structural diagram of a backplane in a display device provided by an embodiment of the present application.
  • 4 is a schematic cross-sectional view of a backplane in a display device provided by an embodiment of the present application.
  • the bottom plate 11 has a protrusion 111 protruding toward the light exit side of the optical element group 2 near the side plate 12, and the protrusion 111 can be supported on the edge of the optical element group 2.
  • the protrusion 111 is located at the edge of the bottom plate 11 and close to the side plate 12, and the top of the protrusion 111 is in contact with the optical element group 2, so that the protrusion 111 is used to support the entire optical element group 2.
  • the display device provided in this embodiment improves the overall strength of the display device by bending the backplane 1 and solves In order to solve the problem of structural deformation of the display device, the reliability of the product is improved while the problems of screen bending and screen breakage that inevitably occur due to the limitation of material strength of the existing display device are solved.
  • a recess 112 may be formed between the protrusion 111 and the side plate 12, and the recess 112 may be used to accommodate the support 4 or other structures.
  • the number of the supporting members 4 is generally four, and the supporting members 4 are provided in one-to-one correspondence with the corners of the back plate 1.
  • FIG. 5 is an assembled schematic view and a partially enlarged schematic view of a support member and a back plate provided by an embodiment of the present application.
  • the structure formed by the four corners, the space formed between the four support members 4 can restrict the optical element group 2 to the inner side, while the protrusion 111 of the back plate 1 supports and fixes the optical element group 2 at the same time,
  • the supporting member 4 may serve to assist in fixing or defining the position of the optical element group 2.
  • the four corners of the liquid crystal panel 3 are in direct contact with the four supporting members 4, that is, the setting of the supporting member 4 can fix the position of the liquid crystal panel 3, Play a supporting role. Then, the four support members 4 can fix the four corners of the liquid crystal panel 3, which has better support and fixing effect on the liquid crystal panel 3, which can make the liquid crystal panel 3 more stable and the liquid crystal panel 3 will have Better flatness.
  • the number of support members 4 may be two.
  • the two support members 4 may be disposed on two corners of the four corners of the backboard 1 which are symmetrical to each other. Since the backboard 1 has two sets of center-symmetrical diagonal corners, the two support members 4 You need to select one of the diagonal settings. Specifically, the situation when there are two support members 4 is similar to that when there are four, and will not be repeated here.
  • the support 4 can have many different structures and forms.
  • the support 4 includes a first extension 41 and a second extension 42, and the first extension 41 and the second extension 42 are respectively provided on two adjacent sides of the backboard 1.
  • the support 4 provided at the corner of the backboard 1 at this time includes two parts. Since the corner of the backboard 1 is formed by two adjacent sides, the entire support 4 is also provided as The right-angled shape of the corner of the back panel 1 makes the connection between the support 4 and the back panel 1 firmer. The support 4 also supports the liquid crystal panel 3 on the support 4 better. There are supporting parts on the two adjacent sides of each corner.
  • the right-angled support 4 is composed of a first extension 41 and a second extension 42 which are located on two adjacent sides of the corner of the backboard 1 respectively.
  • the first extension 41 and the second extension 42 are located on two adjacent sides of the corner of the backplane 1, the first extension 41 and the second extension 42 can be used to fix the position of the liquid crystal panel 3 and restrict the position The position of the optical element group 2 inside the space formed by the four supports 4. At this time, the position of the liquid crystal panel 3 along the long side direction and the wide side direction of the back plate 1 can be restricted by the support 4, so it cannot move in its own plane direction. Similarly, the optical element group 2 located inside the supporting member 4 will also be fixed by the first extending portion 41 or the second extending portion 42 of the supporting member 4, so that its position is limited.
  • the first extension 41 and the second extension 42 of the support 4 generally have the same structure.
  • this embodiment in order to ensure that the first extension portion 41 and the second extension portion 42 have sufficient bearing capacity for the liquid crystal panel 3, and at the same time minimize the structural size of the support 4 to reduce the production cost, as shown in FIG. 5, this embodiment
  • the lengths of the first extension portion 41 and the second extension portion 42 can be one tenth to one sixth of the width of the back plate 1.
  • the specific details of the support 4 The size of this embodiment is not limited.
  • the support 4 can be connected to the back plate 1 in various detachable or non-detachable ways.
  • the supporting member 4 and the back plate 1 can be connected by a snap connection.
  • the support 4 and the back plate 1 are in an engaged connection relationship.
  • the back plate 1 is provided with an engaging portion for the support 4 to be engaged, and the support 4 is provided with A component that matches the position and shape of the engaging portion of the back plate 1. In this way, the connection between the support 4 and the back plate 1 can be ensured more firmly, and the support 4 will not be easily detached from the back plate 1.
  • the supporting member 4 is provided with at least one first engaging portion 43
  • the side plate 12 is provided with at least one second engaging portion 121 for engaging with the first engaging portion 43.
  • the engaging portion 121 and the first engaging portion 43 correspond to each other.
  • FIG. 6 is a schematic structural diagram of a support member provided by an embodiment of the present application.
  • the supporting member 4 is provided with a first engaging portion 43.
  • the first engaging portion 43 is used to realize an engaging connection between the supporting member 4 and the back plate 1. It is worth noting that this application does not limit the number of first engaging portions 43, and there may be one or more.
  • the first engaging portion 43 It may be provided on the first extending portion 41 or the second extending portion 42 as long as the supporting member 4 can be fixedly connected to the back plate 1 through the first engaging portion 43.
  • the solution of providing the first engaging portion 43 on both the first extending portion 41 and the second extending portion 42 can ensure that the two adjacent sides of the corner of the support 4 and the back plate 1 are fixedly connected, so that the support 4 and the backplane 1 connection is stronger.
  • the support member 4 may be connected to the back plate 1 by means of threaded fastener connection or adhesive bonding, which is not limited herein.
  • FIG. 7 is a partial structural diagram of a backplane provided by an embodiment of the present application.
  • the side plate 12 is provided with a second engaging portion 121 corresponding to the position, size, shape and number of the first engaging portion 43.
  • the engaging connection between the support 4 and the side plate 12 is through The first engaging portion 43 and the second engaging portion 121 cooperate to realize.
  • the first engaging portion 43 may be a locking protrusion
  • the second engaging portion 121 may be a groove into which the locking protrusion may be inserted; or, the first engaging portion 43 may be a groove, the second locking The engaging portion 121 is a locking protrusion that can be locked into the groove. Because the thickness of the back plate 1 is thin, it is easy to manufacture grooves or protrusions on the side plate 12, and it is also easier to provide the protrusions or grooves on the support member 4.
  • the locking protrusions or grooves of the first engaging portion 43 and the grooves or locking protrusions of the second engaging portion 121 on the side plate 12 corresponding to the first engaging portion 43 easily realize the support 4 and
  • the snap connection of the flange 12 can ensure the reliability of the connection between the support 4 and the flange 12. This application does not limit the shape and number of the first engaging portion and the second engaging portion, as long as the engaging can be achieved.
  • the first engaging portion 43 is used as a groove
  • the second engaging portion 121 is used as a locking protrusion that can be engaged in the groove.
  • 8 is a schematic cross-sectional view of the connection between the support and the back plate.
  • the first engaging portion 43 of the support 4 shown in FIG. 6 can be provided as a groove
  • the second engaging portion 121 of the back plate 1 shown in FIG. 7 can be The number, position and shape of the grooves of the first engaging portion 43 of the supporting member 4 shown in 4 are matched to each other.
  • the locking protrusion and the groove can be matched with each other to engage and abut, thereby completing the fixing of the support 4 on the back plate 1.
  • first engaging portion 43 and the second engaging portion 121 shown in FIGS. 6, 7 and 8 are only implementations provided by an embodiment of the present application.
  • first engaging portion 43 and the second card For other reasonable forms of joint part 121, this application does not make specific restrictions.
  • the support member 4 facing the light exit side of the display device has a first placement plane 44 for setting the liquid crystal panel 3.
  • the support member 4 is provided with a first placement plane 44 which is located on the side of the support member 4 facing the light exit side of the display device.
  • the first placement plane 44 is used to make the liquid crystal panel 3 and its Abutting, that is, the contact positions of the four corners of the liquid crystal panel 3 and the support 4 are the first placement planes.
  • the liquid crystal panel 3 will not move on the first placement plane 44 when it is disturbed by the outside world, and the shape of the corners of the liquid crystal panel 3 can be set to the first placement
  • the matching shape of the plane 44 is as shown in FIG. 6.
  • the first placement plane 44 has a limiting portion, which can limit the liquid crystal panel. As shown in FIG.
  • the shape of the first placement plane 44 of the supporting member corresponds to the corner of the liquid crystal panel 3 and the corner of the first placement plane 44 abutting each other.
  • the first placement plane 44 has a "concave” structure, and the corresponding position of the liquid crystal panel 3 is a shape matching the outer edge of the "concave” structure.
  • the protrusion 111 may be located on the back plate 1 near the side plate 12 Ring protrusion.
  • the protrusion 111 and the side of the optical element group 2 facing away from the liquid crystal panel 3 abut each other, and the protrusion 111 serves to support the optical element group 2.
  • the protruding portion 111 is located at the edge portion of the back plate 1, and it is in contact with the edge of the bottommost optical element in the optical element group 2.
  • the ring formed by the protrusion 111 may be intermittent.
  • the protrusion may be intermittently provided.
  • the raised tip forms a second placement plane for supporting the optical element.
  • the tip of the protrusion 111 is in contact with the edge of the bottommost optical element of the optical element group 2, that is, the protrusion is in contact with the edge portion of the surface of the bottommost optical element. Therefore, the protrusion A second placement plane is formed at the top of the, and this second placement plane is used to abut with the optical element at the bottom layer to provide sufficient support for the optical element.
  • the second placement plane is used to support the optical element group 2 formed by the optical elements stacked with the lowest optical element.
  • the side of the support 4 away from the side plate 12 may be supported on the second installation plane.
  • the first placement plane 44 of the support 4 is used to place the liquid crystal panel 3, and the side of the support 4 away from the side plate 12, that is, the other side of the support 4 that is away from the first placement plane 44.
  • a side surface, where this side surface meets the upper surface of the protrusion 111, that is, the second seating plane, the second seating plane has a supporting effect on the side of the support member 4 away from the side plate 12, and thus on the support member 4 Play a supporting role.
  • the side of the support 4 away from the side plate 12 is supported on the second placement plane, the edge portion of the optical element group 2 is also supported on the second placement plane, and the support 4 is away from the side away from the side plate 12
  • the side facing away from each other, that is, the first placement plane 44 of the support 4 is provided with a liquid crystal panel 3, the bottom surface of the optical element group 2 and the side of the support member 4 away from the side plate 12 are the same plane, therefore, the optical element group 2 The whole is located in the space formed by the four supporting members 4, which greatly reduces the gap between the liquid crystal panel 3 and the optical element group 4, and can make the thickness of the entire display device thinner.
  • the supporting member 4 has a supporting portion 45 extending toward the bottom plate of the display device, and the supporting portion 45 is in contact with the bottom wall of the back plate 1.
  • the supporting member 4 further includes a supporting portion 45 extending toward the bottom plate 11 of the display device.
  • the supporting portion 45 extends toward the bottom wall of the back plate 1 and contacts the bottom wall. Since the back plate 1 includes the bottom plate 11 and the side plate 12, the supporting portion 45 will abut the bottom wall of the bottom plate 11.
  • the side plate 12 at the edge of the back plate 1 is a flange bent inward, and the bottom plate 11 is provided with a protrusion 111 near the side plate 12, and the back plate 1 is located between the side plate 12 and the protrusion 111
  • the portion, that is, the recessed portion 112 can be used to accommodate the portion of the support portion 45 that is in contact with the bottom wall of the backboard 1.
  • the thickness of the support portion 45 matches the width of the recessed portion 112, so that the support portion 45 can be embedded in the recessed portion 112, and the support member and the back plate are fixed.
  • the main function of the support portion 45 is to pass through the back panel
  • the supporting effect of the bottom wall of 1 on the supporting portion 45 makes the supporting member 4 more firmly assembled on the display device.
  • the optical element group 2 includes a reflection sheet 21, a diffusion plate 22, and a plurality of optical films 23 disposed in this order from the back of the display device to the front of the display device.
  • the optical elements included in the optical element group 2 are, in order from the back surface of the display device to the front surface of the display device, a reflection sheet 21, a diffusion plate 22, and a plurality of optical films 23.
  • the light emitted from the light source is evenly dispersed upward through the diffusion plate 22, and after the light is more uniform through a plurality of optical films 23, the front surface is directed to the liquid crystal panel 3.
  • the optical element group 2 may further include light emitting diode (Light Emitting Diode, LED) and other elements as light sources.
  • LED Light Emitting Diode
  • the corners of the diffusion plate 22 and the optical film 23 have an irregularly shaped structure.
  • the side plate 12 of the backboard 1 is provided with mounting ears 13, the edge of the optical film 23 has a through hole through which the mounting ears 13 can pass, and the optical film 23 is fixed to the backplane through the mounting ears 13 1 on.
  • the side plate 12 of the backplane 1 is further provided with mounting ears 13.
  • the mounting ears 13 can further define the position of the optical film 23.
  • the mounting ears 13 are disposed at a distance from the backplane 1 to engage first The part of the part 43 which is a little farther away does not affect the snap connection of the support member 4 with the back plate 1.
  • the structure of the mounting ear 13 is that a bayonet structure protrudes inward on the side plate 12 of the backboard 1, and a through hole is formed in the optical film 23 at a position corresponding to the position of the mounting ear 13, The through hole is used to pass the mounting ear 13.
  • the mounting ear 13 on the back plate 1 and the through hole on the optical film 23 are connected through Fixed on the backplane 1.
  • the supporting member 4 may be a plastic member.
  • the supporting member 4 may be selected from a plastic material, preferably a hard plastic material, so as to ensure the fixation of the shape and structure of the supporting member 4 and ensure its limiting effect on the optical element group 2 and supporting effect on the liquid crystal panel 3.
  • the plastic material is selected as the supporting member 4, which can be the same as the material of the traditional plastic frame 6, but since the supporting member 4 only occupies the four corners of the backplane 1, it consumes much less material than the plastic frame 6, which can effectively reduce the display device Production costs.
  • the connection between the support 4 and the back plate 1 is a snap connection. It will not rub off the back plate 1 like the plastic frame 6 during installation and cause chipping.
  • the support 4 and the back plate 1 are connected to the back.
  • the snap connection of the board 1 is also easier.
  • the supporting member 4 can improve the quality and production efficiency of the display device while reducing the overall thickness of the display device.
  • this embodiment provides a specific embodiment for calculating the minimum thickness of the display device.
  • the thinnest portion of the display device should be the protrusion 111 in the back plate 1 to the front frame 5
  • the display device includes a back plate, an optical element group, a liquid crystal panel, and a support;
  • the optical element group includes a plurality of optical elements stacked in sequence
  • the back plate includes a bottom plate, and the bottom plate extends from an edge of the bottom plate to one side of the bottom plate
  • the supporting member is disposed at at least two corners of the back panel, and the liquid crystal panel is disposed on the side of the supporting member away from the bottom panel.

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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)
  • Liquid Crystal (AREA)

Abstract

一种显示装置，包括背板（1）、光学元件组（2）、液晶面板（3）和支撑件（4）；光学元件组（2）包括层叠的多个光学元件，背板（1）包括底板（11）和由底板（11）的边沿向底板（11）的一侧延伸形成的侧板（12），支撑件（4）设置在背板（1）的至少两个角部，液晶面板（3）设置在支撑件（4）的远离底板（11）的一侧。能够降低显示装置的整体厚度，并在提高显示装置生产效率的同时降低生产成本。

Description

显示装置
本申请要求于2018年10月17日提交中国专利局、申请号为201811210104.X、发明名称为“显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及液晶显示技术领域，尤其涉及一种显示装置。
背景技术
背光模组作为液晶显示器面板的关键零组件之一，可供应充足的亮度与均匀分布的光源，使液晶显示器能正常显示。一般的直下式背光模组通常包括背板、光学元件、胶框、液晶面板和前框等组件，在采用胶框同时对液晶面板和光学元件进行固定时，多采用传统的胶框拼接、一体胶框等方案。
发明内容
本申请提供一种显示装置，包括背板、光学元件组、液晶面板和支撑件；光学元件组包括依次层叠的多个光学元件，所述背板包括底板和由所述底板的边沿向所述底板的一侧延伸形成的侧板，支撑件设置在背板的至少两个角部，液晶面板设置在支撑件的远离底板的一侧。
本申请提供一种显示装置，包括背板、光学元件组、液晶面板和支撑件，所述背板包括底板和由所述底板的边沿向所述底板的一侧延伸形成的侧板，所述光学元件组包括层叠的多个光学元件，所述支撑件设置在所述背板的至少两个角部，所述液晶面板设置在所述支撑件的远离所述底板的一侧，其中所述底板在靠近所述侧板处具有向所述光学元件组的出光侧凸起的凸出部，所述凸出部支撑在所述光学元件组的边缘。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为相关技术的采用直下式背光模组的液晶电视的结构示意图；
图2为本申请一实施例提供的显示装置的结构示意图；
图3为本申请一实施例提供的显示装置中的背板的结构示意图；
图4为本申请一实施例提供的显示装置中背板的横截面示意图；
图5为本申请一实施例提供的支撑件与背板的组装示意图及局部放大示意图；
图6为本申请一实施例提供的支撑件的结构示意图；
图7为本申请一实施例提供的背板的局部结构示意图；
图8是支撑件与背板的连接处的截面示意图；
图9为本申请一实施例提供的显示装置的部分结构的横截面示意图；
图10为本申请一实施例提供的光学元件组的结构示意图；
图11为本申请一实施例提供的显示装置的爆炸图。
附图标记说明：
100—背板；200—光学元件；201—扩散板；202—光学膜片；300—胶框；400—液晶面板；500—前框；1—背板；11—底板；12—侧板；111—凸出部；112—凹陷部；121—第二卡合部；13—挂耳；2—光学元件组；21—反射片；22—扩散板；23—光学膜片；3—液晶面板；4—支撑件；41—第一延伸部；42—第二延伸部；43—第一卡合部；44—第一安置平面；45-支撑部；5—前框。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获 得的所有其他实施例，都属于本申请保护的范围。
图1为相关技术的采用直下式背光模组的液晶电视的结构示意图。如图1所示，该直下式背光模组的液晶电视主要由背板100、光学元件200、胶框300、液晶面板400和前框500组成，其中，光学元件200包括扩散板201、光学膜片202等。背板100承载扩散板201和光学膜片202等光学元件200，而胶框300位于液晶面板400和光学元件200的侧方，且胶框300的一侧用于承载液晶面板400，胶框300的一侧和液晶面板400接触，胶框300的与之相对的另一侧则和可用于对光学元件200进行限位和支撑。前框500连接在胶框300外侧并为胶框300提供保护。
在相关技术中，采用胶框同时对液晶面板和光学元件进行固定时多采用传统的胶框拼接、一体胶框等方案，胶框主体部分的厚度会直接影响背光模组的整体尺寸，进而导致显示装置厚度较厚。
有鉴于此，本申请提供了一种显示装置，用以克服背光模组厚度较厚的问题，在提高背光模组生产效率的同时降低生产成本。
图2为本申请一实施例提供的显示装置的结构示意图。如图2所示，本申请提供的显示装置，包括背板1、光学元件组2、液晶面板3和支撑件4；光学元件组2包括依次层叠的多个光学元件，背板1包括底板11和由底板11的边沿向底板11的一侧延伸形成的侧板12，支撑件4设置在背板1的角部，液晶面板3设置在支撑件4的远离底板11的一侧。
在一实施例中，显示装置还包括前框5，前框5连接在背板1的外侧。
如图2所示，显示装置还包括前框5，前框5设置在背板1边缘部分，即侧板12的外侧，并且液晶面板3一侧的前框5部分还延伸至液晶面板3的边缘部分。前框5通过和背板1的侧板12、支撑件4的一部分及液晶面板3的连接，将背板1、支撑件4、光学元件组2及液晶面板3组成一个整体，通过前框5使显示装置的各部件之间形成为一个整体。
本实施例中的显示装置可以为液晶电视或者液晶显示器等。如图2所示，本实施例提供的显示装置从背板1一侧开始依次设置有背板1、光学元件组2及液晶面板3。这其中，背板1由覆盖光学元件组2的正面的底板11以及保护在光学元件组2的侧方的侧板12组成。同时背光模组还包括支撑件4，支撑件4设置在背板1的角部，液晶面板3位于支撑件4上，和支撑件4直接 接触，这样液晶面板只需要利用支撑件4即可得到支撑，且支撑件4为一个局部支撑结构，其整体尺寸和占用空间均小于胶框等整体支撑结构，背光模组的整体厚度得以降低。同时，采用了位于液晶面板3角部的支撑件4替代原有的环绕液晶面板的胶框，因而节省了物料，减少了生产成本，且装配难度较低。
本发明提供的显示装置，包括背板、光学元件组、液晶面板和支撑件；光学元件组包括层叠的多个光学元件，背板包括底板和由底板的边沿向底板的一侧延伸形成的侧板，支撑件设置在背板的至少两个角部，且液晶面板设置在支撑件的远离底板的一侧。这样通过在背板的至少两个角部设置支撑件，能够对液晶面板进行支撑固定，从而减少显示装置中背光模组在厚度方向上的尺寸大小，使显示装置的厚度较薄。
图3为本申请一实施例提供的显示装置中的背板的结构示意图。图4为本申请一实施例提供的显示装置中的背板的横截面示意图。如图3和图4所示，底板11在靠近侧板12处具有向光学元件组2的出光侧凸起的凸出部111，凸出部111可支撑在光学元件组2的边缘。此时，凸出部111位于底板11的边缘部位，并靠近侧板12，并且凸出部111的顶端与光学元件组2接触，这样凸出部111用来支撑整个光学元件组2。这样的设置，能够让背板1直接对光学元件组2实现支撑。同时，由于在背板1的加工过程中进行了折弯处理，与传统的背板结构相比，本实施例提供的显示装置，通过背板1的折弯提高了显示装置的整体强度，解决了现有显示装置由于材料强度限制而不可避免的出现的屏弯曲、屏碎等问题，在解决显示装置的结构变形问题的同时，提高了产品的可靠性。
在一实施例中，凸出部111和侧板12之间还可以形成凹陷部112，凹陷部112可以用来容置支撑件4或者其它结构。
在一实施例中，为了在各个方向上均使液晶面板得到良好的固定，支撑件4的数量一般为四个，且支撑件4与背板1的角部一一对应设置。
图5为本申请一实施例提供的支撑件与背板的组装示意图及局部放大示意图。如图5所示，支撑件4有四个，四个支撑件4分别安装于背板1的四角，这样由于光学元件组2的各个光学元件和液晶面板3都是尺寸略小于背板1四个边角形成的结构，四个支撑件4之间形成的空间可将光学元件组2 限制在其内侧，在背板1的凸出部111对光学元件组2起支撑和固定作用的同时，支撑件4可起到辅助固定或限定光学元件组2的位置的作用。
同时，由于液晶面板3位于支撑件4上，液晶面板3的四个角部直接和四个支撑件4接触，即是说，支撑件4的设置可固定液晶面板3的位置，对液晶面板3起支撑作用。那么，四个支撑件4就可将液晶面板3的四个角部均固定，对液晶面板3的支撑作用和固定作用更好，可使得液晶面板3安装的更稳固，且液晶面板3会具有更好的平整度。
另外，支撑件4的数量也可以是两个。这两个支撑件4可设置在背板1的四个角中的其中互为中心对称的两个角上，由于背板1具有两组中心对称的对角，因此，两个支撑件4只需选择其中一组对角设置即可。具体的，支撑件4为两个时的情况和数量为4个时类似，此处不再赘述。
支撑件4可以具有多种不同的结构和形式。作为一种实施方式，支撑件4包括第一延伸部41和第二延伸部42，第一延伸部41和第二延伸部42分别用于设置在背板1的两个相邻两侧上。
如图5所示，此时设置于背板1角部的支撑件4包括两个部分，由于背板1的角部是相邻两条边构成的，因此，支撑件4整体也设置为和背板1角部一样的直角形状，以使支撑件4和背板1的连接更牢固，支撑件4对位于支撑件4上的液晶面板3的支撑作用也更好，在液晶面板3的每个角部的相邻两边上都有支撑部位。直角形状的支撑件4由第一延伸部41和第二延伸部42构成，这两个延伸部分别位于背板1角部的两条邻边上。
因为第一延伸部41和第二延伸部42分别位于背板1角部的两条邻边上，所以第一延伸部41和第二延伸部42可以用来固定液晶面板3的位置和限制位于四个支撑件4构成的空间的内侧的光学元件组2的位置。此时，液晶面板3在沿背板1的长边方向以及宽边方向上的位置均可得到支撑件4的限制，因而无法沿自身平面方向移动。同样的，位于支撑件4内侧的光学元件组2也会得到支撑件4的第一延伸部41或是第二延伸部42的固定，从而其位置得以限定。
为便于制造和安装，支撑件4的第一延伸部41和第二延伸部42一般具有同样的结构形式。这其中，为了保证第一延伸部41和第二延伸部42对液晶面板3有足够的承载能力，同时尽量减小支撑件4的结构尺寸以降低生产 成本，如图5所示，本实施例的第一延伸部41及第二延伸部42的长度可以为背板1宽度的十分之一至六分之一，当然，只要能满足支撑件4的安装和使用需求，支撑件4的具体尺寸大小本实施例不作限制。
为了将支撑件4固定在背板1上，支撑件4可以采用各种可拆卸或者不可拆卸的方式与背板1连接。在一实施例中，支撑件4和背板1之间可以卡合连接。
如图5中的局部放大示意图所示，支撑件4和背板1之间为卡合连接关系，背板1上设置有可供支撑件4卡合的卡合部，支撑件4上设置有与背板1的卡合部的位置及形状都相匹配的部件。如此设置，可确保支撑件4和背板1的连接更牢固，支撑件4不会轻易从背板1上脱出。
在一实施例中，支撑件4设置有至少一个第一卡合部43，侧板12上设置有至少一个用于和第一卡合部43卡合的第二卡合部121，第二卡合部121和第一卡合部43一一对应。
图6为本申请一实施例提供的支撑件的结构示意图。如图6所示，支撑件4上设置有第一卡合部43，第一卡合部43用于实现支撑件4和背板1的卡合连接。值得注意的是，本申请对第一卡合部43的数量并不做限制，其可以有一个也可以有多个，在有一个第一卡合部43的情况下，第一卡合部43可以设置在第一延伸部41或第二延伸部42上，只要保证支撑件4能够通过第一卡合部43和背板1实现固定连接即可。自然地，在第一延伸部41和第二延伸部42上均设置第一卡合部43的方案，可以保证支撑件4和背板1角部相邻的两边都固定连接，可使支撑件4和背板1的连接更牢固。
此外，支撑件4可以采用螺纹紧固件连接或者粘接等方式与背板1连接，此处不加以限制。
图7为本申请一实施例提供的背板的局部结构示意图。如图7所示，侧板12设置有和第一卡合部43的位置、尺寸形状及数量均相对应的第二卡合部121，支撑件4和侧板12的卡合连接便是通过第一卡合部43和第二卡合部121的配合来实现的。
在一实施例中，第一卡合部43可以为卡突，第二卡合部121为可供卡突卡入的凹槽；或者，第一卡合部43可以为凹槽，第二卡合部121为可卡入凹槽中的卡突。由于背板1的结构厚度较薄，在其侧板12上可很容易的制造凹 槽或卡突，在支撑件4上设置卡突或凹槽也较为容易，如此，可通过支撑件4上第一卡合部43的卡突或是凹槽，和侧板12上与第一卡合部43相对应的第二卡合部121的凹槽或是卡突，轻松的实现支撑件4与凸缘12的卡合连接，且可保证支撑件4与凸缘12连接的可靠性。本申请对第一卡合部及第二卡合部的形状、数量并不做限制，只要可实现卡合即可。
本实施例中，以第一卡合部43为凹槽，第二卡合部121为可卡入凹槽中的卡突的方式进行说明。图8是支撑件与背板的连接处的截面示意图。如图8所示，可以设置图6所示的本实施例的支撑件4的第一卡合部43为凹槽，而图7所示的背板1的第二卡合部121为和图4所示的支撑件4的第一卡合部43的凹槽的数量、位置及形状均匹配的卡突。卡突和凹槽即可相互匹配卡合抵接，从而完成支撑件4在背板1上的固定。当然，如图6、图7和图8所示的第一卡合部43和第二卡合部121仅是本申请一实施例提供的实施方式，对于第一卡合部43和第二卡合部121的其他合理的形式，本申请不作具体限制。
为了对液晶面板3提供稳固可靠的支撑，在一实施例中，支撑件4的朝向显示装置的出光侧的具有用于设置液晶面板3的第一安置平面44。
如图6所示，支撑件4上设置有第一安置平面44，第一安置平面44位于支撑件4朝向显示装置的出光侧的一侧，第一安置平面44用于使液晶面板3和其抵接，即是说，液晶面板3的四角和支撑件4的接触部位为第一安置平面。为了使支撑件4对液晶面板3的固定作用更好，在受到外界干扰时，液晶面板3不会在第一安置平面44上移动，可将液晶面板3角部的形状设置为和第一安置平面44相匹配的形状，如图6所示，第一安置平面44上具有限位部，可对液晶面板进行限位。如图6所示的支撑件的第一安置平面44的形状，则与之对应的液晶面板3为角部和第一安置平面44的角部相互抵接，在支撑件4的第一卡合部位置，第一安置平面44为“凹字形”结构，则液晶面板3相应位置处为与“凹字形”结构的外沿相匹配的形状。
图9为本申请一实施例提供的背板的局部侧视图。如图9所示，由于显示装置一般具有较大的显示面积，为了让光学元件组2得到全面的支撑，在一实施例中，凸出部111可以为位于背板1的靠近侧板12的环形凸起。
凸出部111和光学元件组2的背离液晶面板3的一侧相互抵接，凸出部 111用于支撑光学元件组2。凸出部111位于背板1的边缘部分，其和光学元件组2中最底层的光学元件的边缘接触。图6的背板1的局部结构示意图中示出了背板1其中一角的凸出部111的结构，其中，背板1的每条边的边缘部位均有与光学元件组2抵接的凸出部111的部分，且相邻两条边的凸出部111的部分之间相互交接，四条边的边缘部分的凸出部111的部分连接成整体，构成了环形的凸出部111。在一实施例中，为了满足显示装置的安装需要，凸出部111构成的环形可以是间断的，比如说，在显示装置的地侧，凸出部可是间断设置的。
在一实施例中，凸起的顶端形成用于支撑光学元件的第二安置平面。如前所述，凸出部111的顶端和光学元件组2的最底层的光学元件的边缘接触，即是说，凸起和最底层的光学元件的表面的边缘部分相接触，因此，凸起的顶端便形成了第二安置平面，此第二安置平面用于和最底层的光学元件抵接，给光学元件提供足够的支撑力。在一实施例中，第二安置平面用于支撑与最底层光学元件层叠的各光学元件构成的光学元件组2。
而为了对支撑件4提供辅助支撑，在一实施例中，支撑件4的远离侧板12的一侧可以支撑在第二安置平面上。
如图2所示，支撑件4的第一安置平面44用于放置液晶面板3，而支撑件4的远离侧板12的一侧，即与第一安置平面44相背离的支撑件4的另一侧面，此侧面与凸起部111的上表面，也就是第二安置平面相接处，第二安置平面对支撑件4的远离侧板12的这一侧面有支撑作用，进而对支撑件4起支撑作用。
需要说明的是，支撑件4的远离侧板12的侧面支撑在第二安置平面上，光学元件组2的边缘部分也支撑在第二安置平面上，而支撑件4的与远离侧板12的侧面相互背离的一侧，即支撑件4的第一安置平面44上设置有液晶面板3，光学元件组2的底面和支撑件4的远离侧板12的侧面为同一平面，因此，光学元件组2整个位于四个支撑件4构成的空间内，这就大大减小了液晶面板3和光学元件组4之间的间隙，可使得整个显示装置的厚度变得更薄。
在一实施例中，支撑件4具有向显示装置的底板方向伸出的支撑部45，支撑部45与背板1的底壁抵接。
结合图2和图6所示，支撑件4还包括有向显示装置的底板11方向伸出的支撑部45，支撑部45向背板1的底壁伸出，并与底壁抵接。由于背板1包括底板11和侧板12两部分，所以支撑部45会与底板11的底壁抵接。背板1边缘的侧板12为向内弯折的凸缘，且底板11的接近侧板12的部位设置有凸出部111，而背板1中位于侧板12和凸出部111之间的部分，也就是凹陷部112，即可用于容置支撑部45的与背板1的底壁抵接的部分。
在一实施例中，支撑部45的厚度与凹陷部112的宽度匹配，使得支撑部45可嵌入到凹陷部112中，实现支撑件和背板的固定。
由于支撑件4的远离侧板12的一侧及支撑件4的第一安置平面通过背板1及液晶面板3已能够使支撑件4位置固定，因而设置支撑部45的主要作用是通过背板1的底壁对支撑部45的支撑作用，使支撑件4在显示装置上装配的更加稳固。
在一实施例中，光学元件组2包括由显示装置背面至显示装置正面依次设置的反射片21、扩散板22和多个光学膜片23。
图10为本申请一实施例提供的光学元件组的结构示意图。图11为本申请一实施例提供的显示装置的爆炸图。如图9和图10所示，光学元件组2中包括的光学元件，从显示装置背面至显示装置正面依次为反射片21、扩散板22和多个光学膜片23。其中，直下型的显示装置中，光源射出的光线，向上经扩散板22均匀分散后，经由多个光学膜片23使光线更均匀之后，正面射向液晶面板3。此外，光学元件组2中还可以包括作为光源的发光二极管(Light Emitting Diode，LED)等元件。如图11所示，为了避让角部的支撑件4，扩散板22和光学膜片23的角部为不规则的异形结构。
在一实施例中，背板1的侧板12上设置有挂耳13，光学膜片23的边缘具有可供挂耳13穿过的通孔，光学膜片23通过挂耳13固定在背板1上。
如图9所示，背板1的侧板12结构上还设置有挂耳13，挂耳13可进一步限定光学膜片23的位置，挂耳13设置在离背板1的距离第一卡合部43稍远一些的部位，不影响支撑件4与背板1的卡合连接。如图9所示的挂耳13的结构为背板1的侧板12上的向内伸出一个卡口结构，在光学膜片23上与挂耳13的位置相应的部位开设有通孔，该通孔用于使挂耳13穿过。
由于光学膜片23位于光学元件组2的最上层，光学膜片23与液晶面板 3的距离最近，但光学膜片23却没有紧贴液晶面板3。因此，为了避免光学膜片23与扩散板22之间产生相对位移，本实施例利用背板1上的挂耳13与光学膜片23上的通孔之间穿设连接，将光学膜片23固定在背板1上。
在一实施例中，为了便于加工制造，支撑件4可以为塑胶件。具体的，支撑件4可以选择塑胶材质，优选硬塑胶材质，以保证支撑件4形状结构的固定性，确保其对光学元件组2的限制作用和对液晶面板3的支撑作用。
此外，选用塑胶材质作为支撑件4，其与传统的胶框6材质可以相同，但由于支撑件4仅占据背板1的四角，比胶框6耗费的材料要少很多，可以有效降低显示装置的生产成本。再者，支撑件4和背板1的连接方式为卡合连接，不会像胶框6在安装时会和背板1摩擦而产生掉屑现象，而且支撑件4由于尺寸小，其与背板1的卡合连接也更为容易。与胶框6相比，支撑件4在减小了显示装置整体厚度的大前提下，还可提高显示装置的质量及生产效率。
最后，本实施例给出一种计算显示装置总厚度最小处的具体实施例，如图2所示，显示装置最薄处应为背板1中的凸出部111处至不包括前框5的液晶面板3的上表面的距离(如图中的标线指示处)，以背板1厚度为0.5mm，反射片21厚度为0.2mm，扩散板22厚度为1.2mm，光学膜片23厚度为0.2mm，光学元件组2和液晶面板3之间的间隙为0.3mm，液晶面板3厚度为1.3mm为例来计算，显示装置总厚度最小处的厚度＝背板厚度+反射片厚度+扩散板厚度+光学膜片厚度+间隙+面板厚度＝0.5+0.2+1.2+0.2+0.3+1.3(mm)＝3.7mm。
本实施例中，显示装置包括背板、光学元件组、液晶面板和支撑件；光学元件组包括依次层叠的多个光学元件，背板包括底板和由底板的边沿向底板的一侧延伸形成的侧板，支撑件设置在背板的至少两个角部，且液晶面板设置在支撑件的远离底板的一侧。这样通过在背板的至少两个角部设置支撑件，能够对液晶面板进行固定，从而减少显示装置在厚度方向上的尺寸大小，使显示装置的厚度较薄。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并 不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (19)

  1. 一种显示装置，包括背板、光学元件组、液晶面板和支撑件，其特征在于，
    所述背板包括底板和由所述底板的边沿向所述底板的一侧延伸形成的侧板，所述光学元件组包括层叠的多个光学元件，所述支撑件设置在所述背板的至少两个角部，所述液晶面板设置在所述支撑件的远离所述底板的一侧。
  2. 根据权利要求1所述的显示装置，其特征在于，所述支撑件的数量为四个，所述背板包括四个角部，各所述支撑件与所述背板的各角部一一对应设置。
  3. 根据权利要求1所述的显示装置，其特征在于，所述支撑件包括第一延伸部和第二延伸部，所述第一延伸部和所述第二延伸部分别设置在所述背板的相邻两边上。
  4. 根据权利要求1所述的显示装置，其特征在于，所述支撑件和所述背板卡合连接。
  5. 根据权利要求4所述的显示装置，其特征在于，所述支撑件设置有至少一个第一卡合部，所述侧板上设置有至少一个用于和所述第一卡合部卡合的第二卡合部，所述第二卡合部和所述第一卡合部一一对应。
  6. 根据权利要求5所述的显示装置，其特征在于，所述第一卡合部为卡突，所述第二卡合部为可供卡突插入的凹槽；或所述第一卡合部为凹槽，所述第二卡合部为可供凹槽插入的卡突。
  7. 根据权利要求1所述的显示装置，其特征在于，所述光学元件组为自显示装置背面至显示装置正面依次设置的反射片、扩散板和至少一个光学膜片。
  8. 根据权利要求7所述的显示装置，其特征在于，所述侧板设置有挂耳，所述光学膜片的边缘具有可供所述挂耳穿过的通孔，所述光学膜片通过所述挂耳固定在所述背板上。
  9. 一种显示装置，包括背板、光学元件组、液晶面板和支撑件，其特征在于，
    所述背板包括底板和由所述底板的边沿向所述底板的一侧延伸形成的侧板，所述光学元件组包括层叠的多个光学元件，所述支撑件设置在所述背板 的至少两个角部，所述液晶面板设置在所述支撑件的远离所述底板的一侧，其中所述底板在靠近所述侧板处具有向所述光学元件组的出光侧凸起的凸出部，所述凸出部支撑在所述光学元件组的边缘。
  10. 根据权利要求9所述的显示装置，其特征在于，所述支撑件的数量为四个，所述背板包括四个角部，各所述支撑件与所述背板的各角部一一对应设置。
  11. 根据权利要求9所述的显示装置，其特征在于，所述支撑件包括第一延伸部和第二延伸部，所述第一延伸部和所述第二延伸部分别设置在所述背板的相邻两边上。
  12. 根据权利要求9所述的显示装置，其特征在于，所述支撑件和所述背板卡合连接。
  13. 根据权利要求12所述的显示装置，其特征在于，所述支撑件设置有至少一个第一卡合部，所述侧板上设置有至少一个用于和所述第一卡合部卡合的第二卡合部，所述第二卡合部和所述第一卡合部一一对应。
  14. 根据权利要求13所述的显示装置，其特征在于，所述第一卡合部为卡突，所述第二卡合部为可供卡突插入的凹槽；或，所述第一卡合部为凹槽，所述第二卡合部为可供凹槽插入的卡突。
  15. 根据权利要求9所述的显示装置，其特征在于，所述支撑件具有向所述显示装置的所述底板方向伸出的支撑部。
  16. 根据权利要求15所述的显示装置，其特征在于，所述凸出部和所述底板之间具有凹陷部，所述支撑部嵌入所述凹陷部。
  17. 根据权利要求9所述的显示装置，其特征在于，所述光学元件组为自显示装置背面至显示装置正面依次设置的反射片、扩散板和至少一个光学膜片。
  18. 根据权利要求17所述的显示装置，其特征在于，所述侧板设置有挂耳，所述光学膜片的边缘具有可供所述挂耳穿过的通孔，所述光学膜片通过所述挂耳固定在所述背板上。
  19. 根据权利要求9所述的显示装置，其特征在于，所述支撑件靠近所述底板的一侧放置于所述凸出部上。
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