WO2019223619A1 - 背光源结构以及显示装置 - Google Patents

背光源结构以及显示装置 Download PDF

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Publication number
WO2019223619A1
WO2019223619A1 PCT/CN2019/087427 CN2019087427W WO2019223619A1 WO 2019223619 A1 WO2019223619 A1 WO 2019223619A1 CN 2019087427 W CN2019087427 W CN 2019087427W WO 2019223619 A1 WO2019223619 A1 WO 2019223619A1
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WO
WIPO (PCT)
Prior art keywords
back plate
boss
structure according
optical film
frame
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Ceased
Application number
PCT/CN2019/087427
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English (en)
French (fr)
Inventor
杜艳红
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.)
BOE Technology Group Co Ltd
Beijing BOE Chatani Electronics Co Ltd
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BOE Technology Group Co Ltd
Beijing BOE Chatani Electronics Co Ltd
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Application filed by BOE Technology Group Co Ltd, Beijing BOE Chatani Electronics Co Ltd filed Critical BOE Technology Group Co Ltd
Publication of WO2019223619A1 publication Critical patent/WO2019223619A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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

Definitions

  • the present disclosure relates to a backlight structure and a display device.
  • Backlight is a light source located behind the liquid crystal display (LCD). Its light-emitting effect will directly affect the visual effect of the liquid crystal display module.
  • the liquid crystal display itself does not emit light, and its display graphics are the result of its modulation of light.
  • At least one embodiment of the present disclosure provides a backlight structure, including: a back plate, and an optical film group laminated with the back plate; a frame surrounding an edge of the back plate; and a side wall of the back plate At least one opening for positioning the optical film group is provided, and a light leakage gap is formed between the frame and a side wall of the back plate corresponding to each of the at least one opening; the frame and the A light shielding plate is connected to one of the back plates corresponding to a position of each of the light leakage gaps.
  • a side wall of the back plate includes a bent portion bent toward a side of the back plate facing the optical film group, and the at least one opening is provided at an edge of the bent portion
  • the optical film group includes a main body portion and a protruding portion protruding from an edge of the main body portion, the main body portion is located inside the bent portion and the protruding portion protrudes into the opening to The positioning of the optical film group is realized.
  • the frame includes a first portion overlapping with the back plate in a direction perpendicular to the optical film group, and a second portion located outside of a side wall of the back plate, the optical film A sheet set is located between the first portion and the back plate.
  • the light shielding plate is configured to be rotatable around an intersection of the light shielding plate and the bezel or the back plate.
  • the light shielding plate is connected to an edge of the second portion of the frame remote from the first portion, and extends to a side of the back plate remote from the optical film group.
  • the light shielding plate is integrally formed with the frame.
  • the material of the frame is a polymer.
  • a first engaging structure is provided on the light shielding plate, and a second engaging structure is provided on the other side of the frame or the back plate; the frame and the back plate may pass through the The first engaging structure is connected to the second engaging structure.
  • the first engaging structure includes a protrusion provided at a bottom of the back plate and protruding from a lower surface of the back plate, and the second engaging structure includes a Through-hole.
  • the protrusion includes a first boss near the back plate and a second boss far from the back plate, and the diameter of the through hole is larger than the diameter of the first boss and smaller than the diameter of the first boss. The maximum diameter of the second boss is described.
  • the second boss is a circular mesa structure, and the diameter of the circular mesa structure gradually expands outward in a direction close to the first boss.
  • the second boss is formed by superposing a first round structure near the first boss and a second round structure away from the first boss, and the diameter of the second round structure
  • the direction near the first boss gradually expands outward
  • the diameter of the first round platform structure gradually shrinks in the direction near the first boss
  • the first round platform structure is far from the first boss.
  • the diameter of the bottom surface is equal to the diameter of the bottom surface of the second round structure near the first boss.
  • the engaging amount of the second boss is 0.4-0.5 mm.
  • a gap between a side of the first boss and a side of the through hole is 0.2-0.3 mm.
  • the protrusion is formed on the surface of the back plate away from the optical film group by rivet posts through riveting.
  • the tail of the rivet post is flush with the surface of the back plate close to the optical film group.
  • At least one embodiment of the present disclosure also provides a display device including the backlight structure as described above.
  • 1A is a schematic structural diagram of an opening provided on a side wall of a back plate
  • 1B is a schematic structural diagram of positioning an optical film group through an opening of a back plate
  • FIG. 2 is a schematic structural diagram of a light leakage gap formed between a back plate and a plastic frame
  • FIG. 3 is a schematic structural diagram of forming alignment lines on a lower surface of a backplane
  • FIG. 4 is a schematic structural cross-sectional view of a backlight source structure engaged by a latching structure according to an embodiment of the present disclosure
  • FIG. 5 is a partial enlarged view of a Q area in FIG. 4 provided by an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of an engaging structure provided between a plastic frame and a back plate according to an embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram of a rubber frame and a back plate in an engaged state according to an embodiment of the present disclosure
  • FIG. 8 is a schematic structural diagram of a protrusion according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another protrusion provided by an embodiment of the present disclosure.
  • the backlight usually consists of plastic frame, optical film group, light guide plate, reflection sheet, back plate, light source and other components. See Figure 1A and Figure 2.
  • the optical film is fixed by the plastic frame 1 and the back plate 2 cooperating with each other.
  • Other components such as groups, light guides, reflectors, and light bars.
  • an opening 22 is usually formed in the side wall 21 of the back plate 2 to assemble and locate the optical film group. This allows the opening 22 to be formed when the plastic frame 1 and the side wall of the back plate 2 are mated. Light will leak everywhere (as shown by the dashed line a in Figure 2 is the light leakage path).
  • the alignment line 25 is usually embossed on the lower surface 23 of the back plate 2 corresponding to the opening 22 as a positioning reference, and black tape is used to attach the back plate 2 and the plastic frame. On 1, the mating gap between the back plate 2 and the plastic frame 1 is shielded.
  • positioning is usually performed by embossing the alignment line 25 on the back plate. It is not easy to accurately locate the manual operation, and it is easy to cause skewing of the light-shielding tape. If it is reworked, it will cause labor costs and materials Cost increase.
  • a backlight source structure as shown in FIG. 2, FIG. 4, FIG. 6, and FIG. 7, including: a back plate 2, and an optical film set stacked with the back plate 2.
  • the plastic frame 1 surrounds the edge of the back plate 2;
  • the side wall 21 of the back plate 2 is provided with at least one opening 22 for positioning the optical film group 6 between the plastic frame 1 and the side wall of the back plate 2
  • a light leakage gap 3 is formed at a position corresponding to each of the at least one opening 22;
  • a light shielding plate 4 is connected to one of the plastic frame 1 and the back plate 2 at a position corresponding to the light leakage gap 3.
  • the side wall 21 of the back plate 2 includes a bent portion 24 bent toward a side of the back plate 2 facing the optical film group 6. At least one opening 22 is provided in the bent portion 24.
  • the optical film group 6 includes a main body portion 61 and a protruding portion 62 protruding from the edge of the main body portion 61.
  • the main body portion 61 is located inside the bent portion 24 and the protruding portion 62 projects into the opening 22 to realize the optical film Positioning of the sheet group 6.
  • the plastic frame 1 includes a first portion 11 overlapping with the back plate 2 in a direction perpendicular to the optical film group 6 and a second portion 11 located outside the side wall 21 of the back plate 2.
  • Part 12 the optical film group 6 is located between the first part 11 and the back plate 2.
  • the inner side of the bent portion 24 refers to a side of the bent portion 24 near the main body portion 61 of the optical film group 6.
  • the outer side of the side wall 21 of the back plate 2 refers to a side of the side wall 21 away from the optical film group 6.
  • the light shielding plate 4 is configured to be rotatable around an intersection 41 of the light shielding plate 4 with the bezel 21 or the back plate 2.
  • the light shielding plate 4 is connected to the plastic frame 1 as an example. As shown in FIGS. 4 and 6, the light shielding plate 4 is provided with a first engaging structure 52 and the back plate 2 is provided with a second engaging structure. 51; the plastic frame 1 and the back plate 2 may be connected through a first engaging structure 52 and a second engaging structure 51. The first engaging structure 52 and the second engaging structure 51 constitute an engaging structure 5. When the light shielding plate 4 is rotated and covered on the light leakage gap 3, the plastic frame 1 and the back plate 2 can be locked and connected through the locking structure 5.
  • the plastic frame 1 plays a role of connection and fixing at the edge positions of the back plate 2 and the optical film group 6, and is an embodiment of the frame 1.
  • the frame 1 may also be a polymer frame, such as a plastic frame, a rubber frame, or a metal frame, such as an aluminum alloy frame. The disclosure does not limit the material of the frame 1.
  • At least one embodiment of the present disclosure provides a backlight structure.
  • a light shielding plate 4 is connected to a position corresponding to the light leakage gap 3 in the plastic frame 1 and the back plate 2, and a first engaging structure is provided on the light shielding plate 4. 52.
  • a second engaging structure 51 is provided on the other of the plastic frame 1 and the back plate 2. When the light shielding plate 4 is rotated and covered on the light leakage gap 3, the plastic frame 1 and the back plate 2 can be engaged and connected through the first engaging structure 52 and the second engaging structure 51.
  • the backlight structure solves the problems of higher labor cost and material cost caused by the skew of the attachment and the rework due to the difficulty of positioning the masking tape.
  • the light shielding plate 4 is connected to the plastic frame 1. At this time, the light shielding plate 4 may be connected to an edge of the second portion 12 of the plastic frame 1 far from the first portion 11 and extended to a side of the back plate 2 far from the optical film group 6.
  • the first engaging structure 52 may be disposed on the light shielding plate 4, and the second engaging structure 51 may be disposed on the lower surface 23 of the back plate 2.
  • the light shielding plate 4 may be connected to the back plate 2.
  • the light shielding plate 4 may be connected to the bottom of the back plate 2
  • the first engaging structure 52 may be provided on the light shielding plate 4
  • the second engaging structure 51 may be provided on the plastic frame. 1 on the second part 12.
  • the light guide plate, optical film group, reflection sheet, light bar and other components are generally assembled on the back plate 2 when assembling, and then the plastic frame 1 is fastened on the back plate 2 and then the engaging structure is used. 5 to achieve the engagement of the plastic frame 1 and the back plate 2.
  • the light shielding plate 4 is connected to the edge portion of the second portion 12 of the plastic frame 1 away from the first portion 11 and is integrally formed with the plastic frame 1. In this way, on the one hand, it can meet the operating habits of people, realize fast engagement, and improve production efficiency; on the other hand, by integrating the light shielding plate 4 and the edge portion of the second portion 12 of the plastic frame 1 away from the first portion 11 Formed and connected with the light shielding plate 4 on the back plate 2, and using the engaging structure 5 to achieve the engagement between the light shielding plate 4 and the second portion 12 of the plastic frame 1, can be avoided in the second portion 12 of the plastic frame 1 A gap is formed with the light shielding plate 4 so that light can be shielded better.
  • the embodiment of the present disclosure does not limit the structure of the engaging structure 5 as long as it can achieve the engagement between the plastic frame 1 and the back plate 2.
  • the second engaging structure 51 is disposed at the bottom of the back plate 2 and The protrusion 51 protrudes from the lower surface 23 of the back plate 2, and the first engaging structure 52 is a through hole 52 penetrating the light shielding plate 4.
  • the protrusion 51 includes a first boss 511 near the back plate 2 and a second boss 512 far from the back plate 2, wherein the diameter of the through hole 52 is larger than the diameter of the first boss 511 and smaller than the maximum of the second boss 512. diameter.
  • the lower surface of the second boss 511, the side surface of the first boss 511, and the lower surface of the back plate 2 surround a latching slot 53 which is engaged with a portion of the light shielding plate 4 located on the edge of the through hole 52.
  • the protrusions 51 and the through-holes 52 in a corresponding position, it is only necessary to engage each of the protrusions 51 and the through-holes 52 during assembly. Compared with attaching a light-shielding tape, it does not require embossing lines to align, and takes less time, which can greatly improve assembly efficiency.
  • the embodiment of the present disclosure does not limit the specific structure of the second boss 512.
  • the second boss 512 is a circular truncated structure, and the diameter of the circular truncated structure gradually expands outward in a direction close to the first convex 511. In this way, it is possible to guide the assembly action and facilitate assembly.
  • the second boss 512 is formed by superposing a first round table structure 5121 near the first boss 511 and a second round table structure 5122 far from the first boss 511.
  • the diameter gradually expands in a direction close to the first boss 511, the diameter of the first circular table structure 5121 gradually shrinks in a direction near the first boss 511, and the diameter of the first circular table structure 5121 away from the bottom surface of the first boss 511
  • the diameter of the bottom surface of the second round table structure 5122 close to the first boss 511 is the same.
  • the second boss 512 includes a first inclined plane with a gradually increasing diameter and a second inclined plane with a decreasing diameter in the direction close to the first boss 511 in order.
  • the first inclined plane can guide the assembly action and facilitate the assembly.
  • the two inclined surfaces can guide the disassembly action for easy disassembly.
  • the amount of engagement of the second boss 512 is not limited.
  • the engagement amount refers to a distance between a contour line of the second boss 512 near the bottom surface of the first boss 511 and a contour line of the through hole 52.
  • the engaging amount d1 of the second boss 512 is 0.4-0.5 mm.
  • the gap d2 between the side surface of the first boss 511 and the side surface of the through hole 52 is 0.2-0.3 mm.
  • a gap d2 between a side surface of the first boss 511 and a side surface of the through hole 52 on the light shielding plate 4 is 0.3 mm.
  • the protrusion 51 may be connected to the back plate 2 by bonding, or may be formed on the back plate 2 by welding or riveting.
  • the protrusion 51 is formed on the back plate 2 by riveting with the back plate 2 by riveting.
  • Riveting refers to a method of inserting a rivet into a connection hole, fixing one end, using an axial force to thicken a rivet rod pier to form a nail head, and connecting multiple parts.
  • the rivet post is a rivet
  • the specific method is: drill a hole in the back plate 2, insert a rivet into the hole, hold the rivet, and use a rotary riveting machine to rivet the rivet (that is, make as Structure of the protrusion 51).
  • the tail of the rivet post is flush with the inner surface of the bottom of the back plate 2. In this way, the use of the space in the back plate 2 is not affected.
  • At least one embodiment of the present disclosure also provides a display device including the backlight structure as described above.
  • the display device including the above-mentioned backlight structure also has the same beneficial effects. .
  • the display device may be a product or component having any display function, such as a liquid crystal display, a liquid crystal television, a digital camera, a mobile phone, and a tablet computer.

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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)
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Abstract

一种背光源结构，包括：背板(2)，以及与背板(2)层叠设置的光学膜片组(6)；边框(1)，围绕背板(2)的边缘；背板(2)的侧壁(21)上设置有用于对光学膜片组(6)进行定位的至少一个开口(22)，边框(1)与背板(2)的侧壁(21)之间对应至少一个开口(22)中的每个的位置形成有漏光间隙(3)；边框(1)和背板(2)中的一个对应每个漏光间隙(3)的位置连接有遮光板(4)。该背光源结构解决了因贴覆遮光胶带不容易定位导致的贴附歪斜以及返工造成的人力成本和材料成本较高的问题。

Description

背光源结构以及显示装置
相关申请的交叉引用
本申请要求于2018年5月25日递交的第201810514971.6号中国专利申请的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开涉及一种背光源结构以及显示装置。
背景技术
背光源(BackLight)是位于液晶显示器(LCD)背后的一种光源，它的发光效果将直接影响到液晶显示模块的视觉效果。液晶显示器本身并不发光，它显示图形是它对光线调制的结果。
发明内容
本公开至少一个实施例提供一种背光源结构，包括：背板，以及与所述背板层叠设置的光学膜片组；边框，围绕所述背板的边缘；所述背板的侧壁上设置有用于对所述光学膜片组进行定位的至少一个开口，所述边框与所述背板的侧壁之间对应每个所述至少一个开口的位置形成有漏光间隙；所述边框和所述背板中的一个对应每个所述漏光间隙的位置连接有遮光板。
在一些示例中，所述背板的侧壁包括朝向所述背板面对所述光学膜片组的一侧弯折的弯折部，所述至少一个开口设置在所述弯折部的边缘，所述光学膜片组包括本体部以及从所述本体部的边缘凸出的凸出部，所述本体部位于所述弯折部的内侧且所述凸出部伸入所述开口中以实现所述光学膜片组的定位。
在一些示例中，所述边框包括在垂直于所述光学膜片组的方向上与所述背板重叠的第一部分以及位于所述背板的侧壁的外侧的第二部分，所述光学膜片组位于所述第一部分和所述背板之间。
在一些示例中，所述第二部分与所述背板的侧壁之间具有间隔以在对应于所述至少一个开口的位置形成所述漏光间隙。
在一些示例中，所述遮光板被配置为可围绕所述遮光板与所述边框或所述背板的交线旋转。
在一些示例中，所述遮光板连接在所述边框的所述第二部分的远离所述第一部分的边缘，并且延伸到所述背板的远离所述光学膜片组的一侧。
在一些示例中，所述遮光板与所述边框一体成型。
在一些示例中，所述边框的材料为聚合物。
在一些示例中，所述遮光板上设置有第一卡合结构，所述边框或所述背板的另一个上设置有第二卡合结构；所述边框与所述背板可通过所述第一卡合结构和所述第二卡合结构相连接。
在一些示例中，所述第一卡合结构包括设置在所述背板的底部且凸出于所述背板的下表面的凸起，所述第二卡合结构包括贯穿所述遮光板的通孔。
在一些示例中，所述凸起包括靠近所述背板的第一凸台和远离所述背板的第二凸台，所述通孔的直径大于所述第一凸台的直径且小于所述第二凸台的最大直径。
在一些示例中，所述第二凸台为圆台结构，所述圆台结构的直径沿靠近所述第一凸台的方向逐渐外扩。
在一些示例中，所述第二凸台由靠近所述第一凸台的第一圆台结构和远离所述第一凸台的第二圆台结构叠加而成，所述第二圆台结构的直径沿靠近所述第一凸台的方向逐渐外扩，所述第一圆台结构的直径沿靠近所述第一凸台的方向逐渐内缩，且所述第一圆台结构远离所述第一凸台的底面的直径与所述第二圆台结构靠近所述第一凸台的底面的直径相等。
在一些示例中，所述第二凸台的卡合量为0.4-0.5mm。
在一些示例中，所述第一凸台的侧面和所述通孔的侧面之间的间隙为0.2-0.3mm。
在一些示例中，所述凸起由铆柱通过铆接形成在所述背板远离所述光学膜片组的表面上。
在一些示例中，所述铆柱的尾部与所述背板的靠近所述光学膜片组的表面平齐。
本公开至少一个实施例还提供一种显示装置，包括如上所述的背光源结构。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1A为一种背板侧壁设有开口的结构示意图；
图1B为一种光学膜片组通过背板的开口定位的结构示意图；
图2为一种背板与胶框之间形成漏光间隙的结构示意图；
图3为一种在背板的下表面形成对位线的结构示意图；
图4为本公开实施例提供的一种背光源结构通过卡合结构卡合剖面结构示意图；
图5为本公开实施例提供的图4中Q区域的局部放大图；
图6为本公开实施例提供的一种设置在胶框和背板之间的卡合结构的结构示意图；
图7为本公开实施例提供的一种胶框和背板处于卡合状态时的结构示意图；
图8为本公开实施例提供的一种凸起的结构示意图；
图9为本公开实施例提供的另一种凸起的结构示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例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公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
在本公开的描述中，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。在本公开的描述中，除非另有说明，“多个”的含义是两个或两个以上。
背光源通常由胶框、光学膜片组、导光板、反射片、背板、光源等其他零部件组成，参见图1A与图2，通过胶框1和背板2相互配合来固定光学膜片组、导光板、反射片和灯条等其他零部件。在目前的背光源设计中，通常在背板2的侧壁21形成开口22以对光学膜片组进行组装定位，这就使得胶框1和背板2的侧壁之间配合时在开口22处会漏光(如图2中虚线a为漏光路径)。
在一种技术中，为了避免漏光，参见图3，通常在背板2的下表面23对应开口22的位置压印对位线25作为定位基准，采用黑色胶带贴附在背板2和胶框1上，对背板2和胶框1之间的配合间隙进行遮光。然而，在贴附定位时，通常采用背板上压印对位线25来实现定位，人工操作时不容易准确定位，容易产生遮光胶带贴附歪斜等情况，若返工则会造成人力成本和材料成本的提升。
为解决上述问题，本公开的至少一个实施例提供一种背光源结构，参见图2、图4、图6和图7，包括：背板2，以及与背板2层叠设置的光学膜片组6；胶框1，围绕背板2的边缘；背板2的侧壁21上设置有用于对光学膜片组6进行定位的至少一个开口22，胶框1与背板2的侧壁之间对应至少一个开口22中的每个的位置形成有漏光间隙3；胶框1和背板2中的一个对应漏光间隙3的位置连接有遮光板4。
在一些示例中，参见图1B，背板2的侧壁21包括朝向背板2面对光学膜片组6的一侧弯折的弯折部24，至少一个开口22设置在弯折部24的边缘，光学膜片组6包括本体部61以及从本体部61的边缘凸出的凸出部62，本体部61位于弯折部24的内侧且凸出部62伸入开口22中以实现光学膜片组6的定位。
在一些示例中，参见图2和图4，胶框1包括在垂直于光学膜片组6的方向上与背板2重叠的第一部分11以及位于背板2的侧壁21的外侧的第二部分12，光学膜片组6位于第一部分11和背板2之间。第二部分12与背板 2的侧壁21之间具有间隔，因此，在对应于至少一个开口22的位置形成有漏光间隙3。
需要说明的是，上述弯折部24的内侧是指弯折部24靠近光学膜片组6的本体部61的一侧。上述背板2的侧壁21的外侧是指侧壁21远离光学膜片组6的一侧。
在一些示例中，遮光板4被配置为可围绕遮光板4与边框21或背板2的交线41旋转。
在一些示例中，以遮光板4与胶框1连接为示例，如图4和图6所示，遮光板4上设置有第一卡合结构52，背板2上设置有第二卡合结构51；胶框1与背板2可通过第一卡合结构52和第二卡合结构51相连接。第一卡合结构52和第二卡合结构51组成卡合结构5。当遮光板4旋转盖合在漏光间隙3上时，胶框1与背板2可通过卡合结构5相卡合连接。
在本公开的实施例中，胶框1在背板2和光学膜片组6的边缘位置起连接固定的作用，是边框1的一种实施例。边框1还可以是高分子聚合物框，如塑料框、橡胶框等，也可以是金属框，如铝合金框等，本公开对边框1的材料不作限定。
由于胶框1与背板2之间相互配合时侧壁之间形成有配合间隙，而背板2上设置的开口22会发生漏光，因此，将该配合间隙对应该开口22的位置称为漏光间隙3。
本公开的至少一个实施例提供一种背光源结构，在胶框1和背板2中的一个对应该漏光间隙3的位置连接有遮光板4，并在遮光板4上设置第一卡合结构52，在胶框1和背板2中的另一个上设置第二卡合结构51。当遮光板4旋转盖合在漏光间隙3上时，胶框1与背板2能够通过第一卡合结构52和第二卡合结构51相卡合连接。该背光源结构解决了因贴覆遮光胶带不容易定位导致的贴附歪斜以及返工造成的人力成本和材料成本较高的问题。
在一些示例中，遮光板4连接在胶框1上。此时，遮光板4可以连接在胶框1的第二部分12的远离第一部分11的边缘，并且延伸到背板2的远离光学膜片组6的一侧。第一卡合结构52可以设置在遮光板4上，第二卡合结构51可以设置在背板2的下表面23上。
需要说明的是，遮光板4也可以连接在背板2上。当遮光板4连接在背 板2上时，遮光板4可以连接在该背板2的底部，第一卡合结构52可以设置在遮光板4上，第二卡合结构51可以设置在胶框1的第二部分12上。
通常情况下，在装配时一般先将导光板、光学膜片组、反射片、灯条等部件装配在背板2上，再将胶框1扣合在背板2上，再使用卡合结构5实现胶框1与背板2的卡合。
在一些示例中，参见图4、图6和图7，遮光板4连接在胶框1的第二部分12的远离第一部分11的边缘位置处，且与胶框1一体成型。这样一来，一方面能够满足人的操作习惯，实现快速卡合，能够提高生产效率；另一方面，通过将遮光板4与胶框1的第二部分12的远离第一部分11的边缘位置一体成型，与遮光板4连接在背板2上，采用卡合结构5实现遮光板4与胶框1的第二部分12之间的卡合相比，能够避免在胶框1的第二部分12与该遮光板4之间形成缝隙，从而能够更好地遮光。
本公开的实施例不限定卡合结构5的结构，只要能够实现胶框1和背板2之间的卡接即可。
在一些示例中，参见图4、图5(图4中Q区域的局部放大图)、图6、图7、图8和图9，第二卡合结构51为设置在背板2的底部且凸出于背板2的下表面23的凸起51，第一卡合结构52为贯穿遮光板4的通孔52。凸起51包括靠近背板2的第一凸台511和远离背板2的第二凸台512，其中，通孔52的直径大于第一凸台511的直径且小于第二凸台512的最大直径。第二凸台511的下表面、第一凸台511的侧面和背板2的下表面围合成与遮光板4上位于通孔52边沿的部分相卡接的卡槽53。
在图4中，为了更清楚地观察胶框1和背板2之间的连接关系，将背板2的下表面23朝上放置，并用箭头对方位进行了标示。
在一些示例中，通过将凸起51与通孔52的位置相对应设置，在装配时，仅需要将各个凸起51与通孔52进行卡合即可。与贴附遮光胶带相比不用压印线对位，用时较少，能够大大提高装配效率。
本公开的实施例对该第二凸台512的具体结构不做限定。
在一些示例中，参见图9，第二凸台512为圆台结构，圆台结构的直径沿靠近第一凸台511的方向逐渐外扩。这样一来，能够对装配动作进行导向，方便装配。
在一些示例中，参见图8，第二凸台512由靠近第一凸台511的第一圆台结构5121和远离第一凸台511的第二圆台结构5122叠加而成，第二圆台结构5122的直径沿靠近第一凸台511的方向逐渐外扩，第一圆台结构5121的直径沿靠近第一凸台511的方向逐渐内缩，且第一圆台结构5121远离第一凸台511的底面的直径与第二圆台结构5122靠近第一凸台511的底面的直径相等。这样一来，第二凸台512沿靠近第一凸台511的方向依次包括直径渐扩的第一斜面和直径渐缩的第二斜面，第一斜面能够对装配动作进行导向，方便装配，第二斜面则能够对拆卸动作进行导向，方便拆卸。
对第二凸台512的卡合量不做限定。卡合量是指第二凸台512靠近第一凸台511的底面的轮廓线与通孔52的轮廓线之间的间距。
在一些示例中，参见图5，第二凸台512的卡合量d1为0.4-0.5mm。
在一些示例中，第一凸台511的侧面和通孔52的侧面之间的间隙d2为0.2-0.3mm。采用此结构，与遮光板4上通孔52的侧面和第一凸台511之间精确配合相比，方便装配和拆卸。
在一些示例中，第一凸台511的侧面和遮光板4上通孔52的侧面之间的间隙d2为0.3mm。
凸起51可以通过粘结连接在背板2上，也可以通过焊接、铆接形成在背板2上。
在一些示例中，参见图4和图5，凸起51由铆柱与背板2通过铆接形成在背板2上。铆接是指将铆钉插入连接孔内，固定一端，利用轴向力将铆钉钉杆墩粗并形成钉头，使多个零件相连接的方法。
在一些示例中，铆柱即为铆钉，具体的做法为：在背板2上钻孔，在孔内插入铆钉，顶住铆钉，用旋铆机将铆钉铆成形(即制作为如上述所述的凸起51的结构)。
在一些示例中，该铆柱的尾部与该背板2底部的内表面平齐。这样一来，不影响背板2内空间的使用。
本公开的至少一个实施例还提供一种显示装置，包括如上所述的背光源结构。
由于上述的背光源结构解决了因贴覆遮光胶带不容易定位导致的贴附歪斜以及返工造成的人力成本和材料成本较高的问题，因此包括上述背光源结 构的显示装置也具有同样的有益效果。
显示装置可以为液晶显示器、液晶电视、数码相机、手机、平板电脑等具有任何显示功能的产品或者部件。
以上所述仅是本公开的示范性实施方式，而非用于限制本公开的保护范围，本公开的保护范围由所附的权利要求确定。

Claims (18)

  1. 一种背光源结构，包括：
    背板，以及与所述背板层叠设置的光学膜片组，
    边框，围绕所述背板的边缘，
    所述背板的侧壁上设置有用于对所述光学膜片组进行定位的至少一个开口，所述边框与所述背板的侧壁之间对应每个所述至少一个开口的位置形成有漏光间隙；其中，
    所述边框和所述背板中的一个对应每个所述漏光间隙的位置连接有遮光板。
  2. 根据权利要求1所述的背光源结构，其中，
    所述背板的侧壁包括朝向所述背板面对所述光学膜片组的一侧弯折的弯折部，所述至少一个开口设置在所述弯折部的边缘，所述光学膜片组包括本体部以及从所述本体部的边缘凸出的凸出部，所述本体部位于所述弯折部的内侧且所述凸出部伸入所述开口中以实现所述光学膜片组的定位。
  3. 根据权利要求1或2所述的背光源结构，其中，
    所述边框包括在垂直于所述光学膜片组的方向上与所述背板重叠的第一部分以及位于所述背板的侧壁的外侧的第二部分，所述光学膜片组位于所述第一部分和所述背板之间。
  4. 根据权利要求3所述的背光源结构，其中，
    所述第二部分与所述背板的侧壁之间具有间隔以在对应于所述至少一个开口的位置形成所述漏光间隙。
  5. 根据权利要求1-4中任一项所述的背光源结构，其中，所述遮光板被配置为可围绕所述遮光板与所述边框或所述背板的交线旋转。
  6. 根据权利要求3或4所述的背光源结构，其中，
    所述遮光板连接在所述边框的所述第二部分的远离所述第一部分的边缘，并且延伸到所述背板的远离所述光学膜片组的一侧。
  7. 根据权利要求1-6中任一项所述的背光源结构，其中，
    所述遮光板与所述边框一体成型。
  8. 根据权利要求1-7中任一项所述的背光源结构，其中，
    所述边框的材料为聚合物。
  9. 根据权利要求1-8中任一项所述的背光源结构，其中，
    所述遮光板上设置有第一卡合结构，所述边框或所述背板的另一个上设置有第二卡合结构；所述遮光板与所述背板通过所述第一卡合结构和所述第二卡合结构相连接。
  10. 根据权利要求9所述的背光源结构，其中，
    所述第一卡合结构包括设置在所述背板的底部且凸出于所述背板的远离所述光学膜片组的表面的凸起，所述第二卡合结构包括贯穿所述遮光板的通孔。
  11. 根据权利要求10所述的背光源结构，其中，
    所述凸起包括靠近所述背板的第一凸台和远离所述背板的第二凸台，所述通孔的直径大于所述第一凸台的直径且小于所述第二凸台的最大直径。
  12. 根据权利要求11所述的背光源结构，其中，
    所述第二凸台为圆台结构，所述圆台结构的直径沿靠近所述第一凸台的方向逐渐外扩。
  13. 根据权利要求11或12所述的背光源结构，其中，
    所述第二凸台由靠近所述第一凸台的第一圆台结构和远离所述第一凸台的第二圆台结构叠加而成，所述第二圆台结构的直径沿靠近所述第一凸台的方向逐渐外扩，所述第一圆台结构的直径沿靠近所述第一凸台的方向逐渐内缩，且所述第一圆台结构远离所述第一凸台的底面的直径与所述第二圆台结构靠近所述第一凸台的底面的直径相等。
  14. 根据权利要求11-13中任一项所述的背光源结构，其中，
    所述第二凸台的卡合量为0.4-0.5mm。
  15. 根据权利要求11-14中任一项所述的背光源结构，其中，
    所述第一凸台的侧面和所述通孔的侧面之间的间隙为0.2-0.3mm。
  16. 根据权利要求10-15任一项所述的背光源结构，其中，
    所述凸起由铆柱通过铆接形成在所述背板远离所述光学膜片组的表面上。
  17. 根据权利要求16所述的背光源结构，其中，
    所述铆柱的尾部与所述背板的靠近所述光学膜片组的表面平齐。
  18. 一种显示装置，包括如权利要求1-17中任一项所述的背光源结构。
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Publication number Priority date Publication date Assignee Title
CN108873424B (zh) * 2018-05-25 2020-09-11 北京京东方茶谷电子有限公司 一种背光源结构以及显示装置
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201013266A (en) * 2008-09-24 2010-04-01 Hannstar Display Corp Backlight module
WO2013117745A1 (en) * 2012-02-10 2013-08-15 Tp Vision Holding B.V. Display device
CN103995384A (zh) * 2014-05-05 2014-08-20 青岛海信电器股份有限公司 一种液晶模组及显示装置
CN104391399A (zh) * 2014-12-19 2015-03-04 捷星显示科技（福建）有限公司 一种防漏光液晶显示器
CN205067925U (zh) * 2015-11-05 2016-03-02 京东方光科技有限公司 一种背光模组和显示装置
CN108873424A (zh) * 2018-05-25 2018-11-23 北京京东方茶谷电子有限公司 一种背光源结构以及显示装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202675169U (zh) * 2012-06-25 2013-01-16 京东方科技集团股份有限公司 一种光学膜片固定装置、背光源及液晶显示器
CN103836460B (zh) * 2013-11-27 2015-11-25 京东方科技集团股份有限公司 一种框架、背光源模组及显示装置
CN107505670B (zh) * 2017-09-22 2019-06-21 京东方科技集团股份有限公司 背光源以及显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201013266A (en) * 2008-09-24 2010-04-01 Hannstar Display Corp Backlight module
WO2013117745A1 (en) * 2012-02-10 2013-08-15 Tp Vision Holding B.V. Display device
CN103995384A (zh) * 2014-05-05 2014-08-20 青岛海信电器股份有限公司 一种液晶模组及显示装置
CN104391399A (zh) * 2014-12-19 2015-03-04 捷星显示科技（福建）有限公司 一种防漏光液晶显示器
CN205067925U (zh) * 2015-11-05 2016-03-02 京东方光科技有限公司 一种背光模组和显示装置
CN108873424A (zh) * 2018-05-25 2018-11-23 北京京东方茶谷电子有限公司 一种背光源结构以及显示装置

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