WO2020125065A1 - 显示装置 - Google Patents

显示装置 Download PDF

Info

Publication number
WO2020125065A1
WO2020125065A1 PCT/CN2019/104043 CN2019104043W WO2020125065A1 WO 2020125065 A1 WO2020125065 A1 WO 2020125065A1 CN 2019104043 W CN2019104043 W CN 2019104043W WO 2020125065 A1 WO2020125065 A1 WO 2020125065A1
Authority
WO
WIPO (PCT)
Prior art keywords
bracket
display device
side wall
light
base
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.)
Ceased
Application number
PCT/CN2019/104043
Other languages
English (en)
French (fr)
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.)
Qingdao Hisense Electronics Co Ltd
Original Assignee
Qingdao Hisense Electronics 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 Qingdao Hisense Electronics Co Ltd filed Critical Qingdao Hisense Electronics Co Ltd
Publication of WO2020125065A1 publication Critical patent/WO2020125065A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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

Definitions

  • the present disclosure relates to the field of display technology, and particularly to a display device.
  • the display device includes a backlight module, and the contrast between the brightness of the light emitting areas of the backlight module is crucial to the display effect of the display device.
  • the backlight module may include a backplane and a light source disposed on the backplane.
  • Direct type backlight modules are usually divided into multiple backlight partitions.
  • a stereo reflector is provided on the light source.
  • the three-dimensional reflection sheet includes a plurality of light cavities arranged in an array, each light cavity includes a bottom surface and four side walls, and the light source is located on the bottom surface of the light cavity.
  • a diffuser plate is generally needed to make the light output of the backlight module uniform.
  • the present disclosure provides a display device to reduce the difficulty of fixing a diffuser bracket.
  • the present disclosure provides a display device, including: a plurality of light sources, a three-dimensional reflection sheet, a diffusion plate, and a bracket for supporting the diffusion plate.
  • the light source is used to emit light
  • the stereoscopic reflective sheet includes at least one optical cavity unit; each of the optical cavity units includes a bottom surface and at least one first side wall, and part or all of the bracket serves as the first On the side wall, the bottom surface is provided with at least one light source.
  • FIG. 1 is a partial structural schematic diagram of an embodiment of a display device provided by the present disclosure
  • FIG. 2 is a partial structural schematic diagram of another embodiment of a display device provided by the present disclosure.
  • FIG. 3 is a schematic structural view of a three-dimensional reflective sheet of an embodiment of a display device provided by the present disclosure
  • FIG. 4 is a schematic structural diagram of another embodiment of a display device provided by the present disclosure.
  • FIG. 5 is a partial cross-sectional structural diagram of another embodiment of a display device provided by the present disclosure.
  • FIG. 6 is a schematic structural diagram of yet another embodiment of a display device provided by the present disclosure.
  • first and second are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • the features defined as “first” and “second” may include at least one of the features explicitly or implicitly.
  • the first feature “above” or “below” the second feature may be that the first and second features are in direct contact, or that the first and second features are indirectly intermediary contact.
  • the first feature is “above”, “above” and “above” the second feature may be that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • the first feature is “below”, “below”, and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontal than the second feature.
  • the display device provided by the embodiment of the present disclosure can be applied to a direct-type display device.
  • the three-dimensional reflection sheet can be used to improve the contrast of the liquid crystal display device under the same screen, that is, the light emitted by the light source in the backlight module is emitted through the three-dimensional reflection sheet.
  • the three-dimensional reflection sheet includes a plurality of light cavities arranged in an array, each light cavity includes a bottom surface and four side walls, and the light source is located on the bottom surface of the light cavity.
  • the three-dimensional reflection sheet is generally formed by a plastic mold to form each optical cavity.
  • a diffuser plate is generally needed to make the light output of the backlight module uniform.
  • the change of the optical cavity after molding will cause the change of the direction of light propagation, which will lead to the deviation of the contrast of the local light-emitting area of the stereoscopic reflective sheet. Therefore, the side wall of the optical cavity cannot be destroyed after the optical cavity is formed, and only a hole can be made on the bottom surface of the optical cavity to install a bracket for fixing the diffusion plate.
  • breaking holes on the bottom surface of the light cavity is also limited by the structure of the side walls of the light cavity.
  • holes can only be broken at a position close to the light source to fix the bracket for installing the diffusion plate. Therefore, in the above solution, the fixing space of the bracket for installing the diffusion plate is small, and the fixing difficulty is great.
  • the bracket cannot be evenly distributed between the light sources, for example, a plurality of LED lamps, which makes the bracket unevenly receive and reflect the light emitted from the LED lamps at the adjacent positions, so that the bracket shadow is easy to appear. If the bracket is not used to support the diffusion plate, the sidewall of the light cavity in the stereoscopic reflective sheet is directly used to support the diffusion plate, there are the following problems.
  • the bracket for supporting the diffusion plate is provided on the side wall of the optical cavity, so the area of the bottom surface of the optical cavity where the bracket is provided remains large, and the difficulty of fixing the bracket is reduced.
  • FIG. 1 is a partial structural diagram of a display device according to an embodiment of the present disclosure.
  • the display device provided in this embodiment includes a plurality of light sources, a three-dimensional reflection sheet, a diffusion plate, and a bracket 113.
  • the multiple light sources are used to emit light.
  • the three-dimensional reflection sheet includes at least one optical cavity unit 11.
  • Each of the optical cavity units 11 includes a bottom surface 111 and at least one first side wall 112. Part or all of the bracket 113 serves as the at least one first side wall 112, and the bottom surface 111 is provided with at least one light source.
  • the bracket 113 is used to support the diffusion plate.
  • the display device may include a backlight module and a display panel.
  • the backlight module is located on the light incident side of the display panel to serve as a light source for the display panel. Because the display panel itself does not emit light, the backlight module is required to provide a uniform surface light source and display the light by modulating the light.
  • the light source includes Light Emitting Diode (LED for short).
  • the backlight module is usually divided into multiple backlight partitions. In order to improve the contrast between the brightness of the adjacent light emitting areas and reduce the influence between the brightness of the adjacent light emitting areas, the light source is provided with a stereo reflection sheet. The three-dimensional reflection sheet reflects the light emitted by the light source.
  • the three-dimensional reflection sheet includes a plurality of optical cavity units 11.
  • Each optical cavity unit 11 includes a bottom surface 111 and at least one first side wall 112, and the bottom surface 111 is provided with at least one light source.
  • Part or all of the bracket 113 serves as at least one first side wall 112.
  • the bracket 113 for supporting the diffusion plate serves as at least one first side wall 112 of the optical cavity unit 11.
  • the position indicated by A in the figure is the position where the light source is set.
  • the optical cavity unit 11 may further include a second side wall 114 in addition to the first side wall 112.
  • the total number of the first side wall 112 that the second side wall 114 and the above-mentioned bracket 113 serve is four Pcs.
  • the optical cavity unit 11 is provided with at least one light source, for example, only one light source.
  • the number of the optical cavity units 11 may be plural, and a plurality of optical cavity units 11 are arranged in an array.
  • the bracket 113 is contoured according to the structure of the first side wall 112 of the optical cavity unit 11 of the three-dimensional reflection sheet to replace the first side wall 112 of the optical cavity unit 11 of the three-dimensional reflection sheet.
  • the bracket 113 and the first side wall 112 may be formed using an injection molding process, or may be formed using other methods well known to those skilled in the art.
  • the bracket 113 may be made of polymethyl methacrylate (PMMA) material, so as to reduce the influence of the bracket on the light and optimize the bracket shadow problem.
  • PMMA polymethyl methacrylate
  • the position of the bracket 113 is first determined, and when the shape of the optical cavity unit 11 in the three-dimensional reflection sheet is determined according to the light emitting angle of the LED as the light source, the bracket 113 is also determined Shape.
  • a suction molding is not performed, but a flat surface is used, so that the bracket 113 can be located in the optical cavity unit 11. As shown in Figure 3.
  • the first side wall 112 or the second side wall 114 may be shared.
  • the angle between the bracket 113 for supporting the diffusion plate and/or the second side wall 114 of the optical cavity unit 11 and the bottom surface 111 is determined according to the light emitting angle of the light source.
  • the angle between the bracket 113 and the bottom surface 111 is determined according to the light emitting angle of the light source, and the angle between the second side wall 114 of the optical cavity unit 11 and the bottom surface 111 may also be determined according to the light emitting angle of the light source.
  • the shape of the second side wall 114 of the optical cavity unit 11 is determined according to the light emitting angle of the light source, and the shape of the bracket 113 imitates the shape of the second side wall 114.
  • the backlight module of this embodiment includes a plurality of light sources, a three-dimensional reflection sheet and a bracket 113.
  • the light source is used to emit light.
  • the three-dimensional reflection sheet includes at least one optical cavity unit 11.
  • the optical cavity unit 11 includes a bottom surface 111 and at least one first side wall 112. Part or all of the bracket 113 serves as the at least one first side wall 112.
  • the bottom surface 111 is provided with at least one light source.
  • the bracket 113 supports the diffusion plate.
  • the first side wall 112 at the position of the corresponding bracket 113 of the optical cavity unit 11 is removed, and part or all of the bracket 113 serves as the first side wall 112, that is, the bracket 113
  • the position of the side wall of at least one optical cavity unit 11 is occupied. In this way, since the area of the mounting position of the bracket 113 is large, the difficulty of fixing the bracket 113 is reduced.
  • the height of the bracket 113 is greater than the second side wall 114 the height of.
  • the bracket 113 may specifically include a base 1131 and a support portion 1132;
  • the support portion 1132 is located at one end of the base 1131 away from the bottom surface 111.
  • the other end of the base 1131 away from the support portion 1132 contacts the bottom surface 111.
  • the shapes of the base 1131 and the second side wall 114 are substantially the same.
  • the area where the support portion 1132 contacts the diffusion plate is smaller than the area where the base 1131 contacts the bottom surface 111.
  • the bracket 113 is higher than the height of the optical cavity unit 11 of the three-dimensional reflection sheet, that is, higher than the height of the second side wall 114 to ensure that the bracket 113 is completely used to support the diffusion plate.
  • the base portion 1131 of the bracket 113 can serve as the first side wall 112.
  • the base 1131 of the bracket 113 is modeled according to the second side wall 114 of the optical cavity unit 11 to ensure that the formed optical cavity unit 11 can avoid light leakage.
  • the support portion 1132 of the bracket 113 higher than the second side wall 114 is shaped to reduce the size of the support portion 1132 of the bracket 113, thereby reducing the support 113 and The contact area of the diffusion plate can further avoid the shadow of the bracket 113.
  • the supporting portion 1132 and the base 1131 may be integrally formed. Or, the base 1131 and the support portion 1132 may be connected by a connecting member, that is, the support portion 1132 is connected to the base 1131.
  • the connecting piece may be a fastener such as a screw or an adhesive such as glue.
  • the support portion 1132 has a tapered structure.
  • the bottom end of the tapered structure is located on the base 1131, and the top end of the tapered structure is used to support the diffusion plate.
  • FIG. 5 is a schematic cross-sectional view of the bracket 113.
  • the support portion 1132 is a tapered structure, which reduces the contact area between the bracket 113 and the diffuser plate to avoid the shadow of the bracket 113.
  • the base 1131 of the bracket 113 is modeled after the second side wall 114 of the optical cavity unit 11 to ensure that the formed
  • the optical cavity unit 11 can avoid light leakage
  • the support portion 1132 higher than the second side wall 114 is shrunk in the direction toward the diffusion plate to reduce the bracket 113 and the diffusion plate The contact area, so that the shadow of the bracket 113 can be avoided.
  • the display device of this embodiment includes a back plate 1, a lamp plate provided on the back plate 1, and a diffusion plate 3.
  • the light source 2 is assembled on the lamp board.
  • the light board is a flexible printed circuit (Flexible Printed Circuit, FPC for short) or a printed circuit board (Printed Circuit Board, PCB for short).
  • the light source can be realized by an LED lamp. LED lights are assembled on FPC or PCB.
  • a through hole is provided on the bottom surface between at least two light sources; the bracket 113 is fixed to the lamp board through the through hole.
  • a hole may be dug at a position where the bracket 113 is placed on the determined bottom surface 111 to expose the back plate 1 or the lamp board for the bracket 113 to be fixed.
  • the bracket 113 can be fixed on the lamp board by using hot-melt adhesive to perform the surface mounting technology (SMT) process on the lamp board, that is, the base 1131 of the bracket 113 is fixed on the lamp board.
  • SMT surface mounting technology
  • the three-dimensional reflection sheet is directly inserted into the bracket 113.
  • the display device of this embodiment may further include an optical film 4, a display panel 5, a backplane 1, and a backplane 1.
  • the three-dimensional reflection sheet includes at least one optical cavity unit 11; each optical cavity unit 11 includes a bottom surface 111 and at least one first side wall 112, part or all of the bracket 113 serves as at least one first side wall 112, and the bracket 113 is used for Supporting the diffusion plate 3; wherein, the light source 2 is assembled on the lamp plate and is located at the bottom of the three-dimensional reflection sheet.
  • the number of optical cavity units 11 may be plural, and a plurality of optical cavity units 11 may be arranged in an array.
  • the height of the bracket 113 may be greater than the height of the second side wall 114.
  • the display device further includes a housing.
  • the display panel may be a liquid crystal display panel
  • the backlight module and the liquid crystal display panel are both disposed in the housing, and the backlight module and the liquid crystal display panel are oppositely arranged.
  • the backlight module has a light exit surface, which is 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 will not be repeated here.
  • the casing 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 usually located in the rear frame.
  • the display device includes a housing, a display panel 5 and a backlight module.
  • the backlight module and the display panel 5 are both disposed in the housing, and the backlight module is opposite to the liquid crystal display panel.
  • the backlight module includes a plurality of light sources 2, a three-dimensional reflection sheet, a diffusion plate 3 and a bracket 113.
  • the light source 2 is used to emit light;
  • the three-dimensional reflection sheet includes at least one optical cavity unit 11; each of the optical cavity units 11 includes a bottom surface 111 and at least one first side wall 112, a portion of the bracket 113 or All serve as the at least one first side wall 112, the bottom surface 111 is provided with at least one light source 2, and the bracket 113 supports the diffusion plate 3.
  • the side wall 112 of the optical cavity unit 11 at the position where the bracket 113 is provided is removed, and part or all of the bracket 113 serves as the side wall 112. In this way, since the area where the bracket 113 is installed is large, the difficulty of fixing the bracket 113 is reduced.
  • 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.
  • 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.

Landscapes

  • 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

一种显示装置，包括多个光源、立体反射片、扩散板和用于支撑扩散板的支架(113)。其中，光源用于发光；立体反射片包括至少一个光腔单元(11)；每个光腔单元(11)包括底面(111)和至少一个第一侧壁(112)，支架(113)的部分或全部作为第一侧壁(112)，底面(111)设有至少一个光源。

Description

显示装置
相关申请的交叉引用
本申请要求于2018年12月20日提交的、申请号为2018115905673的中国专利申请的优先权，该申请的全文以引用的方式并入本文中。
技术领域
本公开涉及显示技术领域，尤其涉及一种显示装置。
背景技术
随着显示技术的发展，人们对显示装置的要求越来越高。显示装置包括背光模组，背光模组的出光区域的亮度之间的对比度对于显示装置的显示效果来说至关重要。
背光模组可包括背板以及设置在背板上的光源。直下式背光模组通常分为多个背光分区。为了提高相邻出光区域的亮度之间的对比度，光源上设有立体反射片。立体反射片包括阵列设置的多个光腔，每个光腔包括底面和四个侧壁，光源位于光腔的底面。此外，为了将各个光腔中光源发出的点光源或线光源分布成均匀的面光源，通常需要通过扩散板来使背光模组的出光均匀化。
发明内容
本公开提供一种显示装置，以减小扩散板支架的固定难度。
第一方面，本公开提供一种显示装置，包括：多个光源、立体反射片、扩散板和用于支撑扩散板的支架。其中，所述光源用于发光；所述立体反射片包括至少一个光腔单元；每个所述光腔单元包括底面和至少一个第一侧壁，所述支架的部分或全部作为所述第一侧壁，所述底面设有至少一个光源。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是本公开提供的显示装置一实施例的局部结构示意图；
图2是本公开提供的显示装置另一实施例的局部结构示意图；
图3是本公开提供的显示装置一实施例的立体反射片结构示意图；
图4是本公开提供的显示装置另一实施例的结构示意图；
图5是本公开提供的显示装置另一实施例的局部剖面结构示意图；
图6是本公开提供的显示装置又一实施例的结构示意图。
通过上述附图，已示出本公开明确的实施例，后文中将有更详细的描述。这些附图和文字描述并不是为了通过任何方式限制本公开构思的范围，而是通过参考特定实施例为本领域技术人员说明本公开的概念。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
本公开的说明书和权利要求书及所述附图中的术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本公开的描述中，需要理解的是，术语“上”、“下”、“前”、“后”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。
在本公开中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜 上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
首先对本公开所涉及的应用场景进行介绍：
本公开实施例提供的显示装置，可以应用于直下式显示装置。
立体反射片可以用于提高液晶显示装置同一画面下的对比度，即背光模组中的光源发射的光线经过立体反射片发射出去。立体反射片包括阵列设置的多个光腔，每个光腔包括底面和四个侧壁，光源位于光腔的底面。立体反射片一般是通过吸塑模具形成各个光腔的。此外，为了将各个光腔中光源发出的点光源或线光源分布成均匀的面光源，通常需要通过扩散板来使背光模组的出光均匀化。然而，光腔在成型后的变化会导致光线传播方向的变化，从而导致立体反射片的局部出光区域的对比度的偏差。因此，在光腔成型后不能破坏光腔的侧壁，而只能在光腔的底面上进行破孔以安装用于固定扩散板的支架。
但是，在光腔的底面破孔也会受到光腔的侧壁结构的限制，例如只能在与光源距离很近的位置破孔以进行用于安装扩散板的支架的固定。因此，上述方案中，用于安装扩散板的支架的固定空间较小，固定难度较大。而且支架无法在光源、例如多个LED灯之间均布，这使得支架对其相邻位置的LED灯发出的光线的接收和反射不均匀，从而容易出现支架暗影。如果不采用支架支撑扩散板，直接用立体反射片中光腔的侧壁支撑扩散板则存在以下问题。首先，在扩散板与立体反射片中光腔的侧壁接触的位置处，可能因光线无法照射到而会产生暗影，并且暗影现象不一致且难以消除；其次，立体反射片中光腔的侧壁直接受力，在运输和搬运过程中容易产生局部的形变。
本公开实施例的显示装置，通过在光腔的侧壁设置用于支撑扩散板的支架，因此设置支架处的光腔的底面的面积保留较大，并减小了固定支架的难度。
下面以具体的实施例对本公开的技术方案进行详细说明。下面这几个具体的实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例不再赘述。
图1是根据本公开实施例的显示装置的局部结构示意图。如图1所示，本实施例提供的显示装置，包括多个光源、立体反射片、扩散板和支架113。其中，所述多个光源用于发射光线。立体反射片包括至少一个光腔单元11。每个所述光腔单元11包括底面111和至少一个第一侧壁112。所述支架113的部分或全部作为所述至少一个第一侧 壁112，所述底面111设有至少一个光源。支架113用于支撑扩散板。
显示装置可以包括背光模组和显示面板。背光模组位于显示面板的入光侧，以充当显示面板的光源。因为显示面板本身并不发光，需要背光模组提供均匀的面光源，并通过对光线的调制来进行显示。光源包括发光二极管(Light Emitting Diode，简称LED)。背光模组通常分为多个背光分区。为了提高相邻出光区域的亮度之间的对比度，减少相邻出光区域的亮度之间的影响，光源上设有立体反射片。立体反射片对光源发出的光进行反射。
如图1所示，立体反射片包括多个光腔单元11。每个光腔单元11包括底面111和至少一个第一侧壁112，底面111设有至少一个光源。支架113的部分或全部作为至少一个第一侧壁112。换言之，利用用于支撑扩散板的支架113充当光腔单元11的至少一个第一侧壁112。图中A所指位置为设置光源的位置。
如图2所示，光腔单元11还可以包括除第一侧壁112之外的第二侧壁114，例如，第二侧壁114和上述支架113充当的第一侧壁112的总数为四个。此外，光腔单元11设有至少一个所述光源，例如，只设一个光源。
光腔单元11的数量可以为多个，多个光腔单元11阵列设置。
该支架113根据立体反射片的光腔单元11的第一侧壁112的结构进行仿形，用以替代立体反射片的光腔单元11的第一侧壁112。例如，支架113及第一侧壁112可以采用注塑工艺形成造型，也可以采用本领域技术人员熟知的其他方法形成造型。
在本公开一实施例中，可以采用聚甲基丙烯酸甲酯(polymethyl methacrylate，简称PMMA)材质制成支架113，从而可以减弱支架对光线的影响以优化支架暗影问题。
具体来说，在立体反射片吸塑模具设计之初，首先确定支架113的位置，并在根据作为光源的LED的发光角度确定立体反射片中光腔单元11的造型时，一并确定支架113的造型。在设计好的支架113的位置处不做吸塑造型，而改为平面，以使支架113能够处于光腔单元11中。如图3所示。
其中，如图1和图3所示对于相邻的光腔单元11来说，第一侧壁112或第二侧壁114可以共用。
在本公开一实施例中，用于支撑扩散板的支架113和/或光腔单元11的第二侧壁114与底面111的夹角为根据光源的发光角度确定的。
具体的，支架113与底面111的夹角为根据光源的发光角度确定的，光腔单元11的第二侧壁114与底面111的夹角也可以为根据光源的发光角度确定。例如，光腔单元11的第二侧壁114的造型根据光源的发光角度确定，支架113的造型仿造第二侧壁114的造型。
本实施例的背光模组包括多个光源、立体反射片和支架113。其中，所述光源用于发光。所述立体反射片包括至少一个光腔单元11。所述光腔单元11包括底面111和至少一个第一侧壁112。所述支架113的部分或全部作为所述至少一个第一侧壁112。所述底面111设有至少一个光源。所述支架113支撑所述扩散板。具体地，根据确定好的支架113的位置，将光腔单元11的对应支架113的位置处的第一侧壁112去掉，由支架113的部分或全部作为该第一侧壁112，即支架113占据了至少一个光腔单元11侧壁的位置。这样，由于该支架113的安装位置处的面积较大，从而减小了固定支架113的难度。
在上述实施例的基础上，可选的，如图2、图4、图5所示，为了对扩散板进行有效支撑，避免对立体反射片的影响，支架113的高度大于第二侧壁114的高度。
其中，支架113具体可以包括底座1131和支撑部1132；
支撑部1132位于底座1131远离底面111的一端，底座1131远离支撑部1132的另一端与底面111接触，底座1131与第二侧壁114的形状大致相同。
进一步，所述支撑部1132与扩散板接触的面积小于所述底座1131与所述底面111接触的面积。
具体的，支架113高于立体反射片的光腔单元11的高度，即高于第二侧壁114的高度，以确保完全使用支架113来支撑扩散板。本实施例中支架113的底座部分1131可以作为第一侧壁112。
在支架底部到立体反射片的光腔高度的空间内，对支架113的底座1131仿照光腔单元11的第二侧壁114进行仿形设计，以确保所形成的光腔单元11能够避免漏光。并且，在高于立体反射片的光腔高度的空间内，对支架113的高于第二侧壁114的支撑部1132进行塑型以缩小支架113的支撑部1132的大小，从而减少支架113与扩散板的接触面积，进而可以避免出现支架113的暗影。
其中，支撑部1132和底座1131可以为一体成型的。或，底座1131和支撑部1132可以通过连接件连接，即支撑部1132连接于底座1131上。
连接件具体可以为螺钉等紧固件，或胶等粘合剂。
如图4、图5所示，支撑部1132为锥型结构，锥型结构的底端位于底座1131上，锥型结构的顶端用于支撑扩散板。
图5中为支架113的剖面示意图，支撑部1132为锥型结构，减少了支架113与扩散板的接触面积，以避免出现支架113的暗影。
本实施例中，在支架113底部到立体反射片的光腔单元11高度的空间内，对支架113的底座1131仿照光腔单元11的第二侧壁114进行仿形设计，以确保所形成的光腔单元11能够避免漏光，并在高于立体反射片光腔单元11的空间内，使高于第二侧壁114的支撑部1132沿朝向扩散板的方向缩小，以减少支架113与扩散板的接触面积，从而可以避免出现支架113的暗影。
在上述实施例的基础上，可选的，如图4所示，本实施例的显示装置包括背板1、设置在背板1上的灯板以及扩散板3。其中，光源2组装在灯板上。灯板为柔性电路板(Flexible Printed Circuit，简称FPC)或者印制电路板(Printed Circuit Board，简称PCB)。
具体的，光源可以由LED灯实现。LED灯组装在FPC或者PCB上。
进一步的，至少两个光源之间的底面上设有通孔；支架113通过该通孔固定在灯板上。
具体的，在确定好的底面111上放置支架113的位置处可以进行挖孔以裸露出背板1或者灯板供支架113固定。
支架113可以通过使用热熔胶在灯板进行表面贴装技术(Surface Mounted Technology，简称SMT)工艺时固定在灯板上，即将支架113的底座1131固定在灯板上。
在支架113固定在灯板上后，立体反射片直接套入支架113中。
图6为根据本公开又一实施例的显示装置的结构示意图，如图6所示，本实施例的显示装置还可以包括光学膜片4、显示面板5、背板1、设置在背板1上的灯板、扩散板3以及立体反射片。其中，立体反射片包括至少一个光腔单元11；每个光腔单元11包括底面111和至少一个第一侧壁112，支架113的部分或全部作为至少一个第一侧壁112，支架113用于支撑扩散板3；其中，光源2组装在灯板上，且位于立体反射片的底部。
光腔单元11的数量可以为多个，多个光腔单元11可以阵列设置。
进一步的，为了对扩散板3进行有效支撑，避免对立体反射片的影响，支架113的高度可以大于第二侧壁114的高度。
进一步的，该显示装置还包括外壳。在这种情况下，显示面板可以为液晶显示面板，背光模组与液晶显示面板均设置在外壳中，背光模组与液晶显示面板相对设置。背光模组具有出光面，该出光面与液晶显示面板相对设置，可为液晶显示面板提供均匀的面光源。其中，背光模组的结构、功能与作用已在前述实施例中详细说明，此处不再赘述。
进一步的，外壳通常可以包括前框与后框，且液晶显示面板被设置在前框中，而背光模组通常位于后框内。
本实施例中，显示装置包括外壳、显示面板5与背光模组，背光模组与显示面板5均设置在外壳中，背光模组与液晶显示面板相对设置。其中，背光模组包括多个光源2、立体反射片、扩散板3和支架113。其中，所述光源2用于发光；所述立体反射片包括至少一个光腔单元11；每个所述光腔单元11包括底面111和至少一个第一侧壁112，所述支架113的部分或全部作为所述至少一个第一侧壁112，所述底面111设有至少一个光源2，支架113支撑扩散板3。并且，根据确定好的支架113的位置，将用于设置支架113的位置处的光腔单元11的侧壁112去掉，以由支架113的部分或全部作为该侧壁112。这样，由于用于安装该支架113的位置处的面积较大，从而减小了固定支架113的难度。
本实施例的装置，其实现原理和技术效果与前述实施例中记载的内容类似，此处不再赘述。
示例的，该显示装置可以包括液晶显示装置、智能手机、平板电脑、电视机、显示器、笔记本电脑、导航仪等任何具有显示功能的产品或部件。
本领域技术人员在考虑说明书及实践这里公开的公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求书指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并 且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求书来限制。

Claims (12)

  1. 一种显示装置，包括：
    多个光源；
    立体反射片，所述立体反射片包括至少一个光腔单元；
    每个所述光腔单元包括底面和至少一个第一侧壁，
    所述底面设有所述多个光源中的至少一个；
    扩散板；和
    支架，被配置为支撑所述扩散板，其中，所述支架的部分或全部作为所述第一侧壁。
  2. 根据权利要求1所述的显示装置，所述光腔单元还包括：
    第二侧壁，所述支架的高度大于所述第二侧壁的高度。
  3. 根据权利要求2所述的显示装置，所述支架包括：
    底座，所述底座的一端与所述底面接触，所述底座与所述第二侧壁的形状基本相同；和
    支撑部，所述支撑部的一端与所述底座远离所述底面的另一端接触，所述支撑部远离所述底座的另一端与所述扩散板接触。
  4. 根据权利要求3所述的显示装置，所述支撑部与所述扩散板接触的面积小于所述支撑部与所述底座的接触面积。
  5. 根据权利要求3所述的显示装置，所述支撑部为从所述底座朝向所述扩散板缩小的锥形结构。
  6. 根据权利要求3所述的显示装置，所述底座与所述第二侧壁的高度基本相等。
  7. 根据权利要求3-6任一项所述的显示装置，所述底座和所述支撑部为一体成型的。
  8. 根据权利要求3-6任一项所述的显示装置，
    所述底座和所述支撑部通过连接件连接。
  9. 根据权利要求2-8任一项所述的显示装置，
    所述支架和/或所述第二侧壁与所述底面的夹角为根据所述光源的发光角度确定的。
  10. 根据权利要求1-7任一项所述的显示装置，还包括：
    背板；和
    设置在所述背板上的灯板；
    其中，所述多个光源组装在所述灯板上。
  11. 根据权利要求10所述的显示装置，所述底面上设有通孔；
    所述支架通过所述通孔固定在所述灯板上。
  12. 根据权利要求1-11任一项所述的显示装置，其特征在于，
    所述支架的材料包括聚甲基丙烯酸甲酯PMMA。
PCT/CN2019/104043 2018-12-20 2019-09-02 显示装置 Ceased WO2020125065A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811590567.3A CN109445186A (zh) 2018-12-20 2018-12-20 显示装置
CN201811590567.3 2018-12-20

Publications (1)

Publication Number Publication Date
WO2020125065A1 true WO2020125065A1 (zh) 2020-06-25

Family

ID=65535478

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/104043 Ceased WO2020125065A1 (zh) 2018-12-20 2019-09-02 显示装置

Country Status (2)

Country Link
CN (2) CN112433408A (zh)
WO (1) WO2020125065A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112433408A (zh) * 2018-12-20 2021-03-02 海信视像科技股份有限公司 显示装置
CN110322787A (zh) * 2019-06-27 2019-10-11 武汉华星光电技术有限公司 灯板组件及显示装置
US11119269B2 (en) 2019-06-27 2021-09-14 Wuhan China Star Optoelectronics Technology Co., Ltd. Lamp panel assembly and display device
CN112859446A (zh) * 2021-03-01 2021-05-28 业成科技（成都）有限公司 显示装置及其背光模组
WO2024050937A1 (zh) * 2022-09-06 2024-03-14 瑞仪(广州)光电子器件有限公司 具有扩散板支撑功能的直下式背光模组及显示器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100141867A1 (en) * 2008-12-05 2010-06-10 Ogihara Takeshi Planar light-emitting device and liquid crystal display apparatus using the same
CN102705755A (zh) * 2012-05-15 2012-10-03 深圳市华星光电技术有限公司 背光模块及显示装置
US20150049280A1 (en) * 2013-08-19 2015-02-19 Funai Electric Co., Ltd. Display device
CN104501034A (zh) * 2014-09-11 2015-04-08 友达光电股份有限公司 薄型背光模组
CN105242455A (zh) * 2015-10-27 2016-01-13 深圳市华星光电技术有限公司 背光模组及显示装置
CN109445186A (zh) * 2018-12-20 2019-03-08 青岛海信电器股份有限公司 显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100141867A1 (en) * 2008-12-05 2010-06-10 Ogihara Takeshi Planar light-emitting device and liquid crystal display apparatus using the same
CN102705755A (zh) * 2012-05-15 2012-10-03 深圳市华星光电技术有限公司 背光模块及显示装置
US20150049280A1 (en) * 2013-08-19 2015-02-19 Funai Electric Co., Ltd. Display device
CN104501034A (zh) * 2014-09-11 2015-04-08 友达光电股份有限公司 薄型背光模组
CN105242455A (zh) * 2015-10-27 2016-01-13 深圳市华星光电技术有限公司 背光模组及显示装置
CN109445186A (zh) * 2018-12-20 2019-03-08 青岛海信电器股份有限公司 显示装置

Also Published As

Publication number Publication date
CN109445186A (zh) 2019-03-08
CN112433408A (zh) 2021-03-02

Similar Documents

Publication Publication Date Title
KR101279126B1 (ko) 백라이트 유닛 및 이를 이용한 액정표시장치
CN100489620C (zh) 背光组件和具有其的显示装置
CN104819406B (zh) 背光单元以及包括该背光单元的液晶显示器
CN206805079U (zh) 背光模组和液晶显示装置
CN103574406B (zh) 背光装置、包括该背光装置的显示设备以及固定构件
CN108022520B (zh) 显示装置
CN112433408A (zh) 显示装置
US11480828B1 (en) Display device, backlight module, and method for assembling display device
CN103672588B (zh) 一种背光模组及显示装置、电视机
TW202037946A (zh) 背光模組
WO2016136146A1 (ja) 表示装置
CN101241243A (zh) 包括柔性印刷电路的装置和连接辅助件
CN206620213U (zh) 用于液晶电视的直下式背光模组结构
CN102043275A (zh) 液晶显示器及其背光模组的组装方法
CN113109970A (zh) 一种背光模组以及显示器
CN104456293A (zh) 背光模组及触控显示装置
CN215895186U (zh) 背光模组及显示装置
CN105179981A (zh) 一种导光板、背板、侧入式背光模组和显示装置
CN206363053U (zh) 直下式背光模组和显示设备
CN211905923U (zh) 显示装置
CN103953893A (zh) 调光单元、背光模组以及显示装置
CN111540273A (zh) Mini LED背光结构和Mini LED背光模组
CN219457126U (zh) 一种显示装置
US9389354B2 (en) Backlight module
US20140347599A1 (en) Backlight module and liquid crystal display device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19897996

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19897996

Country of ref document: EP

Kind code of ref document: A1