WO2020108264A1 - 一种显示装置 - Google Patents

一种显示装置 Download PDF

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Publication number
WO2020108264A1
WO2020108264A1 PCT/CN2019/116168 CN2019116168W WO2020108264A1 WO 2020108264 A1 WO2020108264 A1 WO 2020108264A1 CN 2019116168 W CN2019116168 W CN 2019116168W WO 2020108264 A1 WO2020108264 A1 WO 2020108264A1
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Prior art keywords
display device
light guide
screen
middle frame
backplane
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PCT/CN2019/116168
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English (en)
French (fr)
Inventor
罗晓
陈振洋
姬昌生
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深圳Tcl新技术有限公司
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Publication of WO2020108264A1 publication Critical patent/WO2020108264A1/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

Definitions

  • the present application relates to a display device, and in particular to a display device provided with a light guide back plate that integrates the function of the light guide plate and the back plate.
  • the display device in the prior art generally includes a screen 10, an optical film 20, a light guide plate 30, a reflective paper 40, and a back plate 50 arranged in this order.
  • the screen 10 and the back plate 50 are disposed between There is a middle frame 60, one side of which is connected to the screen 10 through a screen sealing glue 70, and the other side is attached to the back plate 50.
  • the purpose of the present application is to provide a display device, which aims to solve the problem that the thickness of the display device in the prior art is difficult to be further reduced.
  • a display device includes an optical film, which further includes: a light guide back plate that integrates the light guide plate and the back plate, and the light guide back plate facing away from the optical film is covered with a reflective film.
  • the display device further includes: a middle frame, and a longitudinal section of the middle frame has a concave shape.
  • the inner side of the middle frame is adhered to the light guide backboard.
  • the inner side surface of the middle frame is adhered to the light guide backboard by double-sided tape.
  • the display device further includes: a screen and a fixed screen sealing adhesive layer.
  • the fixed screen sealing adhesive layer is used to bond the screen, the middle frame, and the light guide backplane.
  • the display device further includes a screen, and an outer adhesive layer is formed between the screen and the middle frame.
  • an inner adhesive layer is formed between the light guide backplane and the screen.
  • the width of the light guide backplane is larger than the width of the screen.
  • the light guide backplane is rectangular.
  • the display device further includes: a middle frame, and the middle frame passes through and is only connected to the light guide backplane through a double-sided tape.
  • the display device further includes: a middle frame, a screen, and a fixed screen sealing glue layer, and the middle frame passes through and is only connected to the screen through the fixed screen sealing glue layer.
  • the display device further includes a heat sink and a light bar, the heat sink is adhered to the light guide back plate, and the light bar is adhered to the heat sink.
  • the body of the light guide backboard is made of optical grade acrylic sheet.
  • the body of the light guide backboard is made of optical grade PC sheet.
  • a light guide point is provided on the body of the light guide backplane, and the light guide point is made of a material whose reflectance is higher than a preset value and does not absorb light.
  • the light guide point is printed on the bottom surface of the body by UV screen printing technology.
  • the display device further includes: a heat sink and a light bar, and the assembly method of the display device includes the following steps:
  • the optical film is attached to the side of the light guide back plate facing away from the heat sink, and then the screen is attached to the side of the optical film back to the light guide back plate, and a sealing glue is poured between the edge of the light guide back plate and the edge of the screen.
  • the display device provided by the present application adopts a light guide back plate that integrates the light guide plate and the back plate, and the light guide back plate facing away from the optical film is covered with a reflective film. Based on this, the display device provided by the present application omits the arrangement of the back plate in the prior art, and further reduces the thickness of the display device without obtaining material breakthroughs to reduce the thickness of the display device parts.
  • FIG. 1 is a cross-sectional view of a preferred embodiment of a display device in this application.
  • FIG. 2 is a cross-sectional view of a preferred embodiment of the display device in this application.
  • FIG. 3 is a cross-sectional view of another preferred embodiment of the display device in this application.
  • the display device provided by the present application includes a screen 100, an optical film 200, a light guide backplane 300, and a reflective film 400 provided in this order.
  • the light guide backplane 300 has the functions of the light guide plate and the backplane in the conventional display device at the same time, eliminating the use of the backplane, reducing the thickness of the display device, and reducing its cost.
  • the light guide backboard 300 is first selected from an optical grade acrylic/PC sheet; then using a material with extremely high reflectivity and non-absorptive, printed on the bottom of the optical grade acrylic/PC sheet using UV screen printing technology The upper light guide point is made.
  • This application cleverly uses the special optical and physical characteristics of plexiglass, pursues the ultra-thin ultra-thin at the current industry level, integrates the traditional light guide plate and the back plate together, and further utilizes the limited structural space.
  • the display device further includes: a middle frame 500, the longitudinal section of the middle frame 500 is in a concave shape; that is to say, the second embodiment of the present application is in the first embodiment
  • the shape of the middle frame 500 is further defined on the basis of the second embodiment.
  • the structure of the middle frame 500 in the second embodiment is relatively simple, and there is no need to provide a structure such as a connection groove and a connection hole with the backplane. Just connect it, which is very different from the existing technology.
  • a fixed screen sealant layer 600 is formed between the middle frame 500, the light guide backboard 300 and the screen 100, and the preferred position of the fixed screen sealant layer 600 is shown in FIG. 2 .
  • a fixed screen sealing layer is added on the basis of the second embodiment. Comparing FIGS. 1 and 2, it can be seen that the conventional screen sealing layer 70 of the display device is only provided between the middle frame 60 and the screen 10 In addition, the middle frame 60 and the back plate 50 need to be separately connected by means of snaps and/or threads, etc. Compared with the structure of the present application, the installation process is complicated.
  • an outer adhesive layer 610 is formed between the middle frame 500 and the screen 100, and an inner adhesive layer 620 is formed between the light guide backplane 300 and the screen 100, as shown in FIG. 3 .
  • middle frame 500 and the light guide backplane 300 can be connected by a double-sided adhesive 630, as shown in FIGS. 2 and 3.
  • the light guide backplane 300 is rectangular, but it can be understood that the edge of the light guide plate is located outside the AA area (Active Area) operable area, and other shapes will not affect, and this application
  • the reason why the light guide backplane 300 is provided in a rectangular shape is to reduce the production cost of the light guide backplane 300 and improve the connection reliability of the light guide backplane 300.
  • the shape of the middle frame 500 is the same. In addition to the structure in which the longitudinal section is concave, the shape of the middle frame 500 can also be adjusted.
  • the width of the light guide backplane 300 is greater than the width of the screen 100.
  • the display device disclosed in the present application may be a liquid crystal television or a liquid crystal display 100 (applied to devices such as computers). It can also include: radiator and light bar, when installing, you can follow the steps below:
  • the optical film 200 is attached to the side of the light guide backboard 300 facing away from the heat sink, and then the screen 100 is attached to the side of the optical film 200 facing away from the light guide backboard 300, and a seal is poured between the edge of the light guide backboard 300 and the edge of the screen 100 Screen glue.

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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)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种显示装置，其包括：光学膜片（200）和集导光板与背板于一体的导光背板（300），导光背板（300）背离光学膜片（200）一面覆盖有反射膜（400）。省去了现有技术中背板的设置，在未获得材料突破使显示装置零件厚度减小的情况下，进一步地降低了显示装置的厚度。

Description

一种显示装置 技术领域
本申请涉及一种显示装置，尤其涉及的是一种设置有集导光板功能与背板功能于一体的导光背板的显示装置。
背景技术
随着技术的发展，显示器或电视机越来越薄，也越发受到人们的喜爱。如图1所示，现有技术中显示装置通常包括：依次排布的屏幕10、光学膜片20、导光板30、反光纸40及背板50，所述屏幕10及背板50之间设置有中框60，所述中框60一面通过封屏胶70连接屏幕10，另一面与背板50贴合。
由图1所示结构可以看出，目前显示装置的结构排布已经尽可能的紧凑，在屏幕、光学膜片、导光板及背板获得较大技术突破(比如以新材料制作更薄的零件)之前，显示装置的薄型化进入了瓶颈期，如何在获得较大技术突破之前使得显示装置厚度进一步减小成为了亟待解决的技术问题。
可见，现有技术还有待于改进和发展。
实用新型内容
鉴于上述现有技术的不足，本申请的目的在于提供一种显示装置，旨在解决现有技术中显示装置厚度难以进一步减小的问题。
本申请的技术方案如下：
一种显示装置，包括：光学膜片，其还包括：集导光板与背板于一体的导光背板，所述导光背板背离光学膜片一面覆盖有反射膜。
在进一步地优选方案中，所述显示装置还包括：中框，所述中框纵截面呈凹字形。
在进一步地优选方案中，所述中框内侧面粘接于所述导光背板。
在进一步地优选方案中，所述中框内侧面通过双面胶粘接于所述导光背板。
在进一步地优选方案中，所述显示装置还包括：屏幕及固定封屏胶层，所述固定封屏胶层用于粘接屏幕、中框及导光背板。
在进一步地优选方案中，所述显示装置还包括：屏幕，所述屏幕与中框之间形成有外侧胶层。
在进一步地优选方案中，所述导光背板与屏幕之间形成有内侧胶层。
在进一步地优选方案中，所述导光背板的宽度大于屏幕的宽度。
在进一步地优选方案中，所述导光背板呈矩形。
在进一步地优选方案中，所述显示装置还包括：中框，所述中框通过且仅通过双面胶与所述导光背板相连接。
在进一步地优选方案中，所述显示装置还包括：中框、屏幕及固定封屏胶层，所述中框通过且仅通过固定封屏胶层与所述屏幕相连接。
在进一步地优选方案中，所述显示装置还包括：散热器及灯条，所述散热器粘接于所述导光背板，所述灯条粘接于散热器。
在进一步地优选方案中，所述导光背板的本体由光学级的亚克力板材制作而成。
在进一步地优选方案中，所述导光背板的本体由光学级的PC板材制作而成。
在进一步地优选方案中，导光背板的本体上设置有导光点，所述导光点由反射率高于预设值且不吸光的材料制作而成。
在进一步地优选方案中，所述导光点通过UV网版印刷技术印刷在本体底面。
在进一步地优选方案中，所述显示装置还包括：散热器及灯条，所述显示装置的装配方法包括步骤如下：
将散热器粘接于导光背板，或者说粘接于反光膜；
将灯条粘接于散热器；
将光学膜片贴合于导光背板背离散热器一面，而后将屏幕贴合于光学膜片背离导光背板一面，并在导光背板边缘与屏幕边缘之间灌注封屏胶。
与现有技术相比，本申请提供的显示装置，采用了集导光板与背板于一体的导光背板，所述导光背板背离光学膜片一面覆盖有反射膜。基于此，本申请所提供的显示装置，省去了现有技术中背板的设置，在未获得材料突破使显示装置零件厚度减小的情况下，进一步地降低了显示装置的厚度。
附图说明
图1是本申请中显示装置较佳实施例的剖面图。
图2是本申请中显示装置较佳实施例的剖面图。
图3是本申请中显示装置另一较佳实施例的剖面图。
具体实施方式
本申请提供一种显示装置，为使本申请的目的、技术方案及效果更加清楚、明确，以下参照附图并举实例对本申请进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
实施例一
如图2及图3所示，本申请所提供的显示装置包括：依次设置的屏幕100、光学膜片200、导光背板300及反射膜400。
所述导光背板300同时具有传统显示装置中导光板及背板的作用，省去背板的使用，减小显示装置厚度的同时，降低其成本。较佳地是，所述导光背板300首先选用光学级的亚克力/PC板材；然后用具有极高反射率且不吸光的材料，在光学级的亚克力/PC板材底面用UV网版印刷技术印上导光点制作而成。
本申请巧妙地利用了有机玻璃的特殊光学及物理特性，追求目前行业水平的极致超薄，将传统的导光板及背板集成在一起，进一步利用有限的结构空间。
实施例二
在本申请进一步地较佳实施例中，所述显示装置还包括：中框500，所述中框500的纵截面呈凹字型；也就是说，本申请中的实施例二在实施例一的基础上对中框500的形状作了进一步地限定，实施例二中的中框500结构较为简单，无需设置与背板的连接凹槽、连接孔等结构，只需与导光背板300粘接即可，这是与现有技术截然不同之处。
实施例三
在本申请地较佳实施例中，所述中框500、导光背板300及屏幕100之间形成有固定封屏胶层600，所述固定封屏胶层600的优选位置如图2所示。本申请中的实施例三在实施例二的基础上增加了固定封屏胶层，对比图1及图2可知，传统的显示装置封屏胶层70仅仅设置在中框60与屏幕10之间，中框60与背板50需要通过卡扣和/或螺纹等方式另行连接，与本申请的结构相比，复杂且安装过程繁琐。
在本申请地另一较佳实施例中，在中框500与屏幕100之间形成外侧胶层610，并在导光背板300与屏幕100之间形成内侧胶层620，具体如图3所示。
另外，中框500与导光背板300之间可以通过双面胶630相连接，如图2及图3所示。
优选地是，所述导光背板300呈矩形，但可以理解的是，导光板边缘部分是位于AA区即(Active Area)可操作区之外的，设置成其他形状亦不影响，而本申请之所以将导光背板300设置成矩形，是为了降低导光背板300的生产成本，并提高导光背板300的连接 可靠性。而中框500的形状同理，除上述纵截面呈凹字形的结构外，中框500的形状亦可进行调整。
在本申请进一步地较佳实施例中，所述导光背板300的宽度大于屏幕100的宽度。
实施例四
本申请所公开的显示装置可以是液晶电视或液晶显示器100(应用于计算机等装置)。其还可以包括：散热器及灯条，在安装时，可按照以下步骤进行：
将散热器粘接于导光背板300，或者说粘接于反光膜；
将灯条粘接于散热器；
将光学膜片200贴合于导光背板300背离散热器一面，而后将屏幕100贴合于光学膜片200背离导光背板300一面，并在导光背板300边缘与屏幕100边缘之间灌注封屏胶。
应当理解的是，本申请的应用不限于上述的举例，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，所有这些改进和变换都应属于本申请所附权利要求的保护范围。

Claims (17)

  1. 一种显示装置，包括：光学膜片，其中，还包括：集导光板与背板于一体的导光背板，所述导光背板背离光学膜片一面覆盖有反射膜。
  2. 根据权利要求1所述的显示装置，其中，还包括：中框，所述中框纵截面呈凹字形。
  3. 根据权利要求2所述的显示装置，其中，所述中框内侧面粘接于所述导光背板。
  4. 根据权利要求2所述的显示装置，其中，所述中框内侧面通过双面胶粘接于所述导光背板。
  5. 根据权利要求2所述的显示装置，其中，所述显示装置还包括：屏幕及固定封屏胶层，所述固定封屏胶层用于粘接屏幕、中框及导光背板。
  6. 根据权利要求2所述的显示装置，其中，所述显示装置还包括：屏幕，所述屏幕与中框之间形成有外侧胶层。
  7. 根据权利要求6所述的显示装置，其中，所述导光背板与屏幕之间形成有内侧胶层。
  8. 根据权利要求5至7中任意一项所述的显示装置，其中，所述导光背板的宽度大于屏幕的宽度。
  9. 根据权利要求1所述的显示装置，其中，所述导光背板呈矩形。
  10. 根据权利要求9所述的显示装置，其中，所述显示装置还包括：中框，所述中框通过且仅通过双面胶与所述导光背板相连接。
  11. 根据权利要求9所述的显示装置，其中，所述显示装置还包括：中框、屏幕及固定封屏胶层，所述中框通过且仅通过所述固定封屏胶层与所述屏幕相连接。
  12. 根据权利要求1所述的显示装置，其中，所述显示装置还包括：散热器及灯条，所述散热器粘接于所述导光背板，所述灯条粘接于散热器。
  13. 根据权利要求1所述的显示装置，其中，所述导光背板的本体由光学级的亚克力板材制作而成。
  14. 根据权利要求1所述的显示装置，其中，所述导光背板的本体由光学级的PC板材制作而成。
  15. 根据权利要求13或14所述的显示装置，其中，所述导光背板的本体上设置有导光点，所述导光点由反射率高于预设值且不吸光的材料制作而成。
  16. 根据权利要求15所述的显示装置，其中，所述导光点通过UV网版印刷技术印刷在本体底面。
  17. 根据权利要求1所述的显示装置，其中，所述显示装置还包括：散热器及灯条，所述显示装置的装配方法包括步骤如下：
    将散热器粘接于导光背板，或者说粘接于反光膜；
    将灯条粘接于散热器；
    将光学膜片贴合于导光背板背离散热器一面，而后将屏幕贴合于光学膜片背离导光背板一面，并在导光背板边缘与屏幕边缘之间灌注封屏胶。
PCT/CN2019/116168 2018-11-26 2019-11-07 一种显示装置 WO2020108264A1 (zh)

Applications Claiming Priority (2)

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CN209215795U (zh) * 2018-11-26 2019-08-06 深圳Tcl新技术有限公司 一种显示装置
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