WO2021104395A1 - 一种液晶显示装置 - Google Patents

一种液晶显示装置 Download PDF

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Publication number
WO2021104395A1
WO2021104395A1 PCT/CN2020/131896 CN2020131896W WO2021104395A1 WO 2021104395 A1 WO2021104395 A1 WO 2021104395A1 CN 2020131896 W CN2020131896 W CN 2020131896W WO 2021104395 A1 WO2021104395 A1 WO 2021104395A1
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WIPO (PCT)
Prior art keywords
liquid crystal
display device
step portion
crystal display
plane
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PCT/CN2020/131896
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English (en)
French (fr)
Inventor
李金龙
贾文鹏
马吉航
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海信视像科技股份有限公司
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Publication of WO2021104395A1 publication Critical patent/WO2021104395A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods

Definitions

  • This application relates to the field of display technology, and in particular to a liquid crystal display device.
  • LCD TVs generally include a backlight module and a liquid crystal panel. According to the different light incident methods of the backlight module, the backlight module can be divided into a direct-type backlight module and an edge-type backlight module. With the continuous development and maturity of the display technology field, the integration and low cost of LCD TVs are the development direction of the industry.
  • the present application provides a liquid crystal display device, which has a high degree of integration and low cost.
  • a liquid crystal display device comprising:
  • a liquid crystal panel the liquid crystal panel is used to display images
  • a diffuser the diffuser is used to homogenize light, and the liquid crystal panel is located on the light exit side of the diffuser;
  • the backplane is a square structure as a whole, including the sky side, the left side, the right side and the ground side, where the sky side and the ground side are opposite, the left side and the right side are opposite, and the sky side is opposite to the left end and One end on the right side is connected, and the ground side is connected with the other end on the left side and the other end on the right side respectively.
  • the backplane includes A first step portion and a second step portion, the second step portion is used to carry the liquid crystal panel, and the first step portion is used to carry the diffusion plate.
  • the back plate has a second stepped portion for carrying the liquid crystal panel and a first stepped portion for carrying the diffuser plate, that is, the diffuser plate and the liquid crystal panel are completed by the back plate in the present application
  • the middle frame of the liquid crystal display device is no longer required to assemble the diffuser plate and the liquid crystal panel on some end sides of the liquid crystal display device, thereby reducing the cost of the entire display device and increasing Production and assembly efficiency.
  • FIG. 1 is a schematic diagram of an exploded structure of a liquid crystal display device provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of the three-dimensional structure of the back plate 110
  • FIG. 3 is a cross-sectional view of the liquid crystal display device in FIG. 1 along the A-A1 direction;
  • FIG. 5 is a three-dimensional structure diagram of the back plate 110 and the rubber strip 400 after being assembled.
  • connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, they can be contact connection or detachable. Connected, or integrally connected; for those of ordinary skill in the art, the specific meaning of the above terms in this application can be understood under specific circumstances.
  • FIG. 1 is an exploded perspective view of a liquid crystal display device according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a three-dimensional structure of a back plate 110. As shown in FIG.
  • the liquid crystal display device 10 includes a backlight module 100 and a liquid crystal panel 200.
  • the liquid crystal display device 10 When viewed in a plan view, the liquid crystal display device 10 has a rectangular shape with short sides and long sides, the direction of the short sides is referred to as the first direction D1, and the direction of the long sides is referred to as the second direction D2.
  • the second direction D2 is substantially perpendicular to the first direction D1.
  • the backlight module 100 and the liquid crystal panel 200 are sequentially stacked along a third vertical direction D3 substantially orthogonal to the plane of the first direction D1 and the second direction D2.
  • the liquid crystal panel 200 is used to display images, and includes a display area 201 and a circuit board 202 located on one side of the display area 201, and the entire liquid crystal panel 200 is driven and displayed through the circuit board 202.
  • the backlight module 100 includes a back plate 110, a light source 120, a reflective sheet 130, a diffuser plate 140, and a middle frame 150 that play a supporting role in sequence.
  • the liquid crystal display device 10 includes a sky side 101, a left side 102, a right side 103, and a ground side 104.
  • the sky side 101 and the ground side 104 are opposite, the left side 102 and the right side 103 are opposite, and the sky side 101 is opposite to one end of the left side 102. It is connected to one end of the right side 103, and the ground side 104 is connected to the other end of the left side 102 and the other end of the right side 103, respectively.
  • the liquid crystal panel 200, the back plate 110, the reflection sheet 130, and the diffusion plate 140 in the liquid crystal display device also include the sky side, the left side, the right side, and the ground side, respectively.
  • the light source 120 generates light, which includes a plurality of LED light bars arranged along the first direction D1, and the plurality of LED light bars are arranged substantially in parallel.
  • the light bar includes a circuit board and a plurality of LED lights located on one side of the circuit board, the other side of the circuit board is in contact with the back plate, and the light bar is fixed on the back plate 110 through a connecting member.
  • the reflective sheet 130 is used to reflect light to the light emitting direction.
  • the reflection sheet 130 is fixed on the surface of the back plate 110, and the reflection sheet 130 is provided with a plurality of through holes for exposing the LED lamp.
  • the diffuser 140 refracts and reflects the light from the light source 120, thereby achieving uniformity of the light.
  • the middle frame 150 is located on one side of the liquid crystal panel 200 and is used for mating connection with the front case (not shown in the figure), and is used for carrying and shielding the circuit board 202 on the side of the liquid crystal panel 200.
  • the backlight module 100 further includes a diffuser support on the backplane 110 and used for supporting the diffuser 140, thereby ensuring the light mixing distance of the liquid crystal display device 10.
  • the back plate 110 is a square structure as a whole, including the sky side 101, the left side 102, the right side 103, and the ground side 104.
  • the sky side 101 and the ground side 104 are opposite, and the left side 102 and the right side 103 are opposite.
  • the sky side 101 is connected to one end of the left side 102 and the right side 103 respectively, and the ground side 104 is connected to the other end of the left side 102 and the other end of the right side 103 respectively.
  • the three sides of the sky side 101, the left side 102 and the right side 103 of the back plate 110 have the same structure.
  • the ground side 104 of the back plate 110 does not have the above structure, and the ground side 104 is an opening.
  • FIG. 3 is a cross-sectional view of the liquid crystal display device in FIG. 1 along the A-A1 direction
  • FIG. 4 is a cross-sectional view of the back plate 110 along the A-A1 direction
  • FIG. 5 is a three-dimensional structural view of the back plate 110 and the adhesive strip 400 after being assembled .
  • one of the left or right side of the back plate 110 is taken as an example for description.
  • the back plate 110 includes a flat portion 111, a first step portion 112, a second step portion 113, and a side wall portion 114 connected to the first step portion 112 and the second step portion 113, and connected to the flat portion 111 and the first step portion.
  • the sky side, the left side, and the right side of the back plate 110 all have the above-mentioned structure.
  • the plane where the first step portion 112 is located and the plane where the second step portion 113 is located are approximately parallel to the plane where the flat plate portion 111 is located, and the plane where the side wall portion 114 is located is approximately perpendicular to the plane where the flat plate portion 111 is located.
  • the first step portion 112 and the second step portion 113 have a certain extension length in the same direction, the first step portion 112, the second step portion 113 and the side wall portion connected to the first step portion 112 and the second step portion 113 114 constitutes a C-shape, that is, an accommodating space S is formed between the first step portion 112, the side wall portion 114, and the second step portion 113.
  • the first step portion 112 carries the reflective sheet 130 and the diffuser 140 in sequence, that is, the edges of the reflective sheet 130 and the diffuser 140 are placed in the accommodating space S.
  • the reflective sheet 130 and the diffuser plate 140 are directly placed on the first step portion 112 without a fixed structure.
  • the reflective sheet 130 and the diffuser plate 140 are fixed on the ground side 104 of the liquid crystal display device 10 by bonding.
  • the liquid crystal panel 200 is fixed on the second step portion 113, and the sides of the liquid crystal panel 200 are not blocked, and the liquid crystal panel 200 is arranged in a suspended state as a whole, which has a good visual effect and a sense of technology.
  • liquid crystal panel 200 is fixed on the second step portion 113 by the adhesive 300.
  • the bonding member 300 may be a foam tape.
  • the foam tape also has a cushioning effect to ensure that the components will not be easily damaged by wear.
  • the reflection sheet 130, the diffuser 140 and the liquid crystal panel 200 are assembled through the first step portion 112 and the second step portion 113.
  • the liquid crystal The middle frame is no longer needed for the sky, left and right sides of the display device 10 to realize the assembly of the reflective sheet, the diffuser plate and the liquid crystal panel, thereby reducing the cost of the entire display device and improving the production and assembly efficiency.
  • the height of the accommodating space S that is, the distance between the first step portion 112 and the second step portion 113, is at least 4 mm, that is, the first step portion 112 and the second step portion 113
  • the distance between the portions 113 is greater than or less than 4 mm
  • the total thickness of the reflection sheet 130 and the diffusion plate 140 is 1.15 mm.
  • the reflection sheet 130 and the diffusion plate 140 cannot fill the accommodating space S.
  • the liquid crystal display device 10 further includes a rubber strip 400, The rubber strip 400 is disposed on a side surface of the second step 113 facing the first step portion 112.
  • the presence of the adhesive strip 400 fills the accommodating space S, can prevent the reflector and diffuser underneath it from bounce, and further fixes the diffuser.
  • the adhesive 400 is located above the diffuser. Therefore, it is possible to avoid friction damage between the uppermost optical component and one side of the second step portion 113.
  • the thickness h of the rubber strip 400 is between 1 mm and 2.5 mm, so as to ensure the above two functions and facilitate the assembly of the reflector and the diffuser on the first step portion 112 and the second step portion 112. Between the steps 113.
  • the width of the second step portion 113 is 6 mm-10 mm, in order to ensure that the liquid crystal panel 200 and the second step portion 113 have a sufficient bonding and fixing area and the display device has a narrow frame.
  • the width d of the rubber strip 400 is 2 mm-4 mm.
  • the adhesive strip 400 is pasted on the side surface of the second step 113 facing the first step portion 112 at a position close to the edge of the second step 113, which facilitates the attachment tooling to stick the adhesive strip 400 on the second step 113 toward the first step portion One side surface of 112.
  • a rubber strip 400 is adhered to each of the three sides of the sky side, the left side, and the right side of the back plate 110, and this arrangement can make the diffuser plate more stable.
  • only the adhesive strip 400 can be attached to the sky side of the back plate 110, which can further reduce the cost.
  • the transition portion 115 includes a first transition portion 1151 and a second transition portion 1152 that are connected to each other, the first transition portion 1151 is connected to the first step portion 112, and the second transition portion 1152 is connected to the flat plate portion 111.
  • transition portion 115 provides a sufficient light mixing distance between the light source 120 and the diffuser 140, and ensures that the light emitted by the light source 120 can be mixed more uniformly in cooperation with the reflective sheet 130.
  • the first transition portion 1151 The included angle with the plane where the flat part 111 is located is greater than the included angle between the second transition part 1152 and the plane where the flat part 111 is located, that is, the connection between the two is first steep and then slow.
  • connection method can make The backplane is more layered, and the thickness of the backplane can be weakened by connecting at different angles, which is lighter and thinner from the perspective of visual perception; compared to the connection that is slow and then steep, it is more in line with people's aesthetic feelings, and the appearance is more beautiful .
  • the flat plate portion 111, the transition portion 115, the first step portion 112, the side wall portion 114, and the second step portion 113 of the back plate 110 are an integrated structure, which reflects the integration of the liquid crystal display device to the greatest extent. Degree of integration and concentration.
  • the processing can be processed by an integrated bending method.
  • the integrated bending process enhances the strength of the back plate 110.
  • the back plate 110 The thickness can be thinner, and at the same time, the integrated bending method is adopted, there will be no interface, and a good appearance effect is ensured.
  • the liquid crystal display device 10 may further include an optical film 160, which is located on the light exit side of the diffusion plate 140, and is used to brighten light.
  • the liquid crystal display device 10 may not include the optical film 160, and the optical film 160 may be omitted by adjusting the screen printing method of the diffusion plate 140, thereby further reducing the production cost.
  • the adhesive strip 400 is first attached to at least one of the sky side 101, the left side 102, and the right side 103 of the back plate 110 as shown in FIG.
  • the sheet 130 and the diffuser plate 140 are inserted into the accommodating space S on the back plate 110 from the ground side 104 end of the back plate 110, and then the liquid crystal panel 200 is pasted and assembled to realize the assembly of the liquid crystal display device 10.

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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

一种液晶显示装置(10),包括:液晶面板(200),用于显示图像;扩散板(140),用于对光线进行匀化,液晶面板(200)位于扩散板(140)的出光侧;背板(110),包括第一台阶部(112)和第二台阶部(113),第二台阶部(113)用于承载液晶面板(200),第一台阶部(113)用于承载扩散板(140)。相比于现有技术,液晶显示装置(10)某些端侧不再需要中框实现扩散板(140)和液晶面板(200)的装配,由此降低整个显示装置(10)的成本,且提高了生产装配效率。

Description

一种液晶显示装置
相关申请交叉引用
本申请要求于2019年11月26日提交中国专利局、申请号为201922067657.0、申请名称为“一种液晶显示装置”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
本申请涉及显示技术领域,尤其涉及一种液晶显示装置。
背景技术
液晶电视一般包括背光模组和液晶面板,根据背光模组的入光方式的不同,背光模组可分为直下式背光模组和侧入式背光模组。随着显示技术领域的不断发展和日益成熟,液晶电视的一体化和低成本是行业内的发展方向。
发明内容
本申请提供了一种液晶显示装置,该液晶显示装置具有较高的一体化程度和低成本。
一种液晶显示装置,所述液晶显示装置包括:
液晶面板,所述液晶面板用于显示图像;
扩散板,所述扩散板用于对光线进行匀化,所述液晶面板位于所述扩散板的出光侧;
背板,所述背板整体为一方形结构,包括天侧、左侧、右侧和地侧,其中天侧和地侧相对,左侧和右侧相对,天侧分别与左侧的一端和右侧的一端相连,地侧分别与左侧的的另一端和右侧的另一端相连,在所述背板的天侧、左侧和右侧中的至少一侧端,所述背板包括第一台阶部和第二台阶部,所述第二台阶部用于承载所述液晶面板,所述第一台阶部用于承载所述扩散板。
根据本申请,在该液晶显示装置中,背板具有用于承载液晶面板的第二台阶部和用于承载扩散板的第一台阶部,即本申请中通过背板完成 了扩散板和液晶面板的装配,相比于现有技术,在本申请实施例中,液晶显示装置某些端侧不再需要中框实现扩散板和液晶面板的装配,由此降低整个显示装置的成本,且提高了生产装配效率。
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简单地介绍,显而易见地,下面描述中的附图仅仅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的前提下,还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的液晶显示装置的分解结构示意图;
图2为背板110的立体结构示意图;
图3为是图1中的液晶显示装置沿A-A1方向的截面图;
图4为背板110沿A-A1方向的截面图;
图5为背板110和胶条400组装后的立体结构图。
具体实施方式
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,所描述的实施例仅仅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做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。
在本申请的描述中,需要理解的是,术语“中心”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”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申请和简化描述,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申请的限制。
在本申请的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是接触连接,也可以是可拆卸连接,或一体地连接;对于本领域的普通技术人员而言,可以具体情况理解上述术语在本申请中的具体含义。
图1是根据本申请实施例的液晶显示装置的分解透视图,图2为背 板110的立体结构示意图。
参照图1,液晶显示装置10包括背光模组100和液晶面板200。
当在平面图中观察时,液晶显示装置10为具有短边和长边的矩形形状,短边的方向被称作第一方向D1,长边的方向被称作第二方向D2。第二方向D2基本上与第一方向D1垂直。背光模组100和液晶面板200沿着基本上与第一方向D1和第二方向D2的平面正交的第三竖直方向D3顺序地堆叠。
液晶面板200用于显示图像,包括显示区域201和位于显示区域201一侧的电路板202,通过电路板202实现对整个液晶面板200的驱动显示。
沿着液晶显示装置10中光线的出光方向,背光模组100依次包括起到支撑作用的背板110、光源120、反射片130、扩散板140、中框150。
液晶显示装置10包括天侧101、左侧102、右侧103和地侧104,其中天侧101和地侧104相对,左侧102和右侧103相对,天侧101分别与左侧102的一端和右侧103的一端相连,地侧104分别与左侧的102的另一端和右侧103的另一端相连。
相应地,液晶显示装置中的液晶面板200、背板110、反射片130、扩散板140也分别包括天侧、左侧、右侧和地侧。
光源120产生光,其包括沿第一方向D1设置的多个LED灯条,多个LED灯条之间大致平行设置。灯条包括电路板和位于电路板一侧的多个LED灯,电路板的另一侧与背板接触,灯条通过连接部件固定于背板110上。
反射片130用于将光线反射到出光方向上。反射片130固定于背板110的表面,反射片130上设置有多个使LED灯外露的通孔。
扩散板140将来自光源120的光线进行折射和反射,进而实现对光线的均匀化。
中框150位于液晶面板200的一侧,用于与前壳(图中未示出)配合连接,用于承载和遮蔽位于液晶面板200一侧的电路板202。
背光模组100还包括位于背板110上且用于支撑扩散板140的扩散板支架,由此保证了液晶显示装置10的混光距离。
如图2所示,背板110整体为一方形结构,包括天侧101、左侧102、右侧103和地侧104,其中天侧101和地侧104相对,左侧102和右侧103相对,天侧101分别与左侧102的一端和右侧103的一端相连,地侧104分别与左侧的102的另一端和右侧103的另一端相连。
在本申请实施例中,背板110的天侧101、左侧102和右侧103的三侧结构相同。
背板110的地侧104不具有上述结构,地侧104为开口。
图3是图1中的液晶显示装置沿A-A1方向的截面图,图4是背板110沿A-A1方向的截面图,图5为背板110和胶条400组装后的立体结构图。
如图3-5所示,以背板110的左侧或右侧之一为例进行说明,
背板110包括平板部111,第一台阶部112,第二台阶部113,以及连接于第一台阶部112和第二台阶部113的侧壁部114,以及连接于平板部111和第一台阶部112之间的过渡部115。
其中,背板110的天侧、左侧和右侧均具有上述结构。
第一台阶部112所在的平面和第二台阶部113所在的平面与平板部111所在的平面大致平行,侧壁部114所在的平面与平板部111所在的平面大致垂直。
第一台阶部112和第二台阶部113在同一方向上具有一定的延伸长度,第一台阶部112、第二台阶部113和连接于第一台阶部112和第二台阶部113的侧壁部114构成一C型,即第一台阶部112、侧壁部114和第二台阶部113之间形成一容置空间S。
第一台阶部112上依次承载有反射片130、扩散板140,即反射片130和扩散板140的边缘放置于容置空间S。
其中,反射片130和扩散板140直接放置于第一台阶部112上,无固定结构。
在本申请实施例中,反射片130和扩散板140在液晶显示装置10的地侧104端通过粘结方式固定。
第二台阶部113上固定液晶面板200,液晶面板200的侧边无遮挡,整体达到了液晶面板200悬浮设置的状态,具有良好的视觉效果和科技感。
其中,液晶面板200通过粘结件300固定于第二台阶部113上。
具体的,粘结件300可为泡棉胶带。泡棉胶带除了具有粘结固定作用外,还有缓冲作用,保证各部件不会轻易磨损破坏。
在本申请实施例中,通过第一台阶部112、第二台阶部113完成了反射片130、扩散板140和液晶面板200的装配,相比于现有技术,在本申请实施例中,液晶显示装置10的天、左、右侧不再需要中框实现反射片、扩散板和液晶面板的装配,由此降低整个显示装置的成本,且提高了生产装配效率。
本申请实施例中,受到加工工艺的限制,容置空间S的高度,即第一台阶部112和第二台阶部113之间的距离最小做到4mm,即第一台阶部112与第二台阶部113之间的距离大于小于4mm,而反射片130和扩散板140的总厚度为1.15mm,反射片130和扩散板140不能填满容置空间S,液晶显示装置10还包括胶条400,胶条400设置于第二台阶113朝向第一台阶部112的一侧表面。胶条400的存在,一方面填充了容置空间S,能够阻挡位于其下方的反射片和扩散板弹起,更进一步起到了对扩散板的固定,另一方面胶条400位于扩散板的上方,能够避免位于其最上方的光学部件与第二台阶部113的一侧摩擦受损。
在本申请实施例中,胶条400的厚度h在1mm-2.5mm之间,以此来保证起到上述两方面的作用,且方便反射片和扩散板装配于第一台阶部112和第二台阶部113之间。
在本申请实施例中,第二台阶部113的宽度为6mm-10mm,为了保证液晶面板200与第二台阶部113具有足够的粘结固定面积以及显示装置具有较窄的边框。
在本申请实施例中,胶条400的宽度d为2mm-4mm。胶条400粘贴于第二台阶113朝向第一台阶部112的一侧表面靠近于第二台阶113的边缘的位置,有利于贴附工装将胶条400粘贴于第二台阶113朝向第一台阶部112的一侧表面。
在本申请实施例中,在背板110的天侧、左侧和右侧的三侧各粘附一胶条400,如此设置能更加对扩散板进行稳固。
可选地,也可只选在背板110的天侧边粘附胶条400,这样可以更一步降低成本。
在本申请实施例中,过渡部115包括相互连接的第一过渡部1151和第二过渡部1152,第一过渡部1151与第一台阶部112相连,第二过渡部1152与平板部111相连。
过渡部115的存在提供了光源120和扩散板140之间具有足够的混光距离,保证了光源120发出的光线在与反射片130的配合下能够混合得较为均匀。
因第一台阶部112所在的平面与平板部111所在的平面平行,为了保证第一台阶部112与平板部111之间平缓过渡,在如图4所示的截面图中,第一过渡部1151与平板部111所在平面的夹角要大于第二过渡部1152与平板部111所在平面的夹角,即两者之间的连接先陡后缓,相比于单一角度过渡,以上连接方式可使得背板更具有层次感,且可通过不同角度的连接可弱化背板的厚度,从视觉感受来说,更轻薄;相比于先缓后陡的连接,更符合人的审美感受,外观更漂亮。
在本申请实施例中,背板110的平板部111、过渡部115、第一个台阶部112、侧壁部114和第二台阶部113为一体结构,最大程度地体现了液晶显示装置的一体化程度和集中度。
为了形成背板110的一体结构,在加工上,可采用一体折弯的方式进行加工,一体折弯的工艺增强了背板110的强度,在满足相同的强度需求的情况下,背板110的厚度可更薄,同时采用一体折弯的方式,不会存在接口,保证了良好的外观效果。
在本申请实施例中,液晶显示装置10还可包含光学膜片160,光学膜片160位于扩散板140的出光侧,用于对光线进行增亮。
在本申请另一实施例中,液晶显示装置10也可不包括光学膜片160,可通过对扩散板140的丝印方式的调整来省略光学膜片160,从而进一步降低生产成本。
下面介绍一下液晶显示装置10的装配过程。
在进行液晶显示装置10的组装时,首先将胶条400通过工装粘贴于如图2所示的背板110的天侧101、左侧102和右侧103中的至少一个,而后顺次将反射片130、扩散板140从背板110的地侧104端插入到背板110上形成容置空间S内,然后再将液晶面板200进行粘贴装配,进而实现对液晶显示装置10的组装。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。

Claims (29)

  1. 一种液晶显示装置,其特征在于,所述液晶显示装置包括:
    液晶面板,所述液晶面板用于显示图像;
    扩散板,所述扩散板用于对光线进行匀化,所述液晶面板位于所述扩散板的出光侧;
    背板,所述背板整体为一方形结构,包括天侧、左侧、右侧和地侧,其中天侧和地侧相对,左侧和右侧相对,天侧分别与左侧的一端和右侧的一端相连,地侧分别与左侧的的另一端和右侧的另一端相连,在所述背板的天侧、左侧和右侧中的至少一侧端,所述背板包括第一台阶部和第二台阶部,所述第二台阶部用于承载所述液晶面板,所述第一台阶部用于承载所述扩散板。
  2. 根据权利要求1所述的液晶显示装置,其特征在于:
    所述背板还包括设置于第二台阶部朝向所述第一台阶部一侧上的胶条。
  3. 根据权利要求2所述的液晶显示装置,其特征在于:
    所述第二台阶部的宽度为6mm-10mm,所述胶条的宽度为2mm-4mm。
  4. 根据权利要求2所述的液晶显示装置,其特征在于:
    所述胶条的厚度为1mm-2.5mm。
  5. 根据权利要求2所述的液晶显示装置,其特征在于:
    所述第一台阶部与所述第二台阶部的距离大于等于4mm。
  6. 根据权利要求1所述的液晶显示装置,其特征在于:
    所述背板还包括连接所述第一台阶部和所述第二台阶部的侧壁部,所述第一台阶部和所述第二台阶部在同一方向上具有一定的延伸长度,所述第一台阶部、所述第二台阶部和连接于所述第一台阶部和所述第二台阶部的所述侧壁部构成一C型,所述第一台阶部、所述侧壁部和所述第二台阶部之间形成一容置空间,所述扩散板放置于所述第一台阶部、所述第二台阶部和所述侧壁部围成的容置空间。
  7. 根据权利要求6所述的液晶显示装置,其特征在于:
    所述背板还包括平板部以及连接所述平板部与所述第一台阶部的过渡部,所述平板部用于放置光源,所述第一台阶部所在的平面和所述第二台阶部所在的平面与所述平板部所在的平面大致平行,所述侧壁部所在的平面与所述平板部所在的平面大致垂直。
  8. 根据权利要求7所述的液晶显示装置,其特征在于:
    所述过渡部包括相互连接的第一过渡部和第二过渡部,所述第一过渡部与所述第一台阶部相连,所述第二过渡部与平板部相连,所述第一过渡部与所述平板部所在平面的夹角要大于所述第二过渡部与所述平板部所在平面的夹角。
  9. 根据权利要求1所述的液晶显示装置,其特征在于:
    所述液晶显示装置还包括反射片,所述反射片放置于背板上,所述反射片位于所述扩散板的入光侧,所述反射片的边缘位于所述第一台阶部。
  10. 根据权利要求7所述的液晶显示装置,其特征在于:
    所述第一台阶部、所述侧壁部、所述第二台阶部、所述过渡部和所述平板部一体成型。
  11. 根据权利要求9所述的液晶显示装置,其特征在于:
    所述反射片和所述扩散板直接放置于第一台阶部上。
  12. 根据权利要求1所述的液晶显示装置,其特征在于:
    所述液晶面板通过粘结件固定于第二台阶部上,所述液晶面板的侧边无遮挡。
  13. 根据权利要求7所述的液晶显示装置,其特征在于:
    所述光源产生光,其包括沿第一方向设置的多个LED灯条,多个LED灯条之间大致平行设置,所述灯条包括电路板和位于电路板一侧的多个LED灯,电路板的另一侧与所述背板接触,所述灯条通过连接部件固定于所述背板上。
  14. 根据权利要求1所述的液晶显示装置,其特征在于:
    所述背板的天侧、左侧和右侧的三侧结构相同,所述背板的地侧为开口;所述液晶显示装置还包括中框,所述中框位于所述背板的地侧端,用于与前壳配合连接,用于承载和遮蔽位于所述液晶面板一侧的电路板。
  15. 一种液晶显示装置,其特征在于,所述液晶显示装置包括:
    液晶面板,所述液晶面板用于显示图像;
    背板,所述背板整体为一方形结构,包括天侧、左侧、右侧和地侧,其中天侧和地侧相对,左侧和右侧相对,天侧分别与左侧的一端和右侧的一端相连,地侧分别与左侧的的另一端和右侧的另一端相连,在所述背板的天侧、左侧和右侧中的至少一侧端,所述背板包括第一台阶部、第二台阶部以及连接于所述第一台阶部和所述第二台阶部的侧壁部,所述第二台阶部用于承载所述液晶面板,所述第一台阶部和所述第二台阶部 在同一方向上具有一定的延伸长度,所述第一台阶部、所述侧壁部和所述第二台阶部之间形成一容置空间。
  16. 根据权利要求15所述的液晶显示装置,其特征在于:
    所述第一台阶部所在的平面大致平行于所述第二台阶部所在的平面,所述侧壁部所在的平面与所述第一台阶部所在的平面大致垂直。
  17. 根据权利要求15所述的液晶显示装置,其特征在于:
    所述液晶显示装置还包括设置于第二台阶部朝向所述第一台阶部一侧上的胶条。
  18. 根据权利要求17所述的液晶显示装置,其特征在于:
    所述第二台阶部的宽度为6mm-10mm,所述胶条的宽度为2mm-4mm。
  19. 根据权利要求17所述的液晶显示装置,其特征在于:
    所述胶条的厚度为1mm-2.5mm。
  20. 根据权利要求15所述的液晶显示装置,其特征在于:
    所述第一台阶部与所述第二台阶部的距离大于等于4mm。
  21. 根据权利要求15所述的液晶显示装置,其特征在于:
    所述第一台阶部、所述侧壁部、所述第二台阶部一体成型。
  22. 根据权利要求15所述的液晶显示装置,其特征在于:
    所述液晶面板通过粘结件固定于第二台阶部上,所述液晶面板的侧边无遮挡。
  23. 根据权利要求15所述的液晶显示装置,其特征在于:
    所述背板还包括平板部以及连接所述平板部与所述第一台阶部的过渡部,所述平板部用于放置光源,所述第一台阶部所在的平面和所述第二台阶部所在的平面与所述平板部所在的平面大致平行,所述侧壁部所在的平面与所述平板部所在的平面大致垂直。
  24. 根据权利要求23所述的液晶显示装置,其特征在于:
    所述过渡部包括相互连接的第一过渡部和第二过渡部,所述第一过渡部与所述第一台阶部相连,所述第二过渡部与平板部相连,所述第一过渡部与所述平板部所在平面的夹角要大于所述第二过渡部与所述平板部所在平面的夹角。
  25. 根据权利要求15-24任一项所述的液晶显示装置,其特征在于:
    所述液晶显示装置还包括扩散板,所述扩散板用于对光线进行匀化,所述液晶面板位于所述扩散板的出光侧;
    所述第一台阶部用于承载所述扩散板。
  26. 根据权利要求25所述的液晶显示装置,其特征在于:
    所述液晶显示装置还包括反射片,所述反射片放置于背板上,所述反射片位于所述扩散板的入光侧,所述反射片的边缘位于所述第一台阶部。
  27. 根据权利要求23所述的液晶显示装置,其特征在于:
    所述第一台阶部、所述侧壁部、所述第二台阶部、所述过渡部和所述平板部一体成型。
  28. 根据权利要求26所述的液晶显示装置,其特征在于:
    所述反射片和所述扩散板直接放置于第一台阶部上。
  29. 根据权利要求15所述的液晶显示装置,其特征在于:
    所述背板的天侧、左侧和右侧的三侧结构相同,所述背板的地侧为开口;
    所述液晶显示装置还包括中框,所述中框位于所述背板的地侧端,用于与前壳配合连接,用于承载和遮蔽位于所述液晶面板一侧的电路板。
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