WO2019218860A1 - 背光结构及其制造方法、显示装置和移动终端 - Google Patents

背光结构及其制造方法、显示装置和移动终端 Download PDF

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Publication number
WO2019218860A1
WO2019218860A1 PCT/CN2019/084621 CN2019084621W WO2019218860A1 WO 2019218860 A1 WO2019218860 A1 WO 2019218860A1 CN 2019084621 W CN2019084621 W CN 2019084621W WO 2019218860 A1 WO2019218860 A1 WO 2019218860A1
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WIPO (PCT)
Prior art keywords
curved portion
backlight structure
curved
adjacent
frame
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PCT/CN2019/084621
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English (en)
French (fr)
Inventor
夏小丽
Original Assignee
京东方科技集团股份有限公司
合肥京东方显示光源有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥京东方显示光源有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/491,977 priority Critical patent/US10976485B2/en
Publication of WO2019218860A1 publication Critical patent/WO2019218860A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer

Definitions

  • Embodiments of the present disclosure relate to a backlight structure, a method of fabricating the same, a display device, and a mobile terminal.
  • a backlight structure including a frame and a light blocking member.
  • the frame includes a body, a first curved portion, and a second curved portion, the first curved portion protruding from the body in a first direction, the second curved portion protruding from the body in a second direction, The first direction is opposite to the second direction, and the second curved portion is located between the adjacent two first curved portions.
  • the frame also has a hollow portion between the adjacent two first curved portions and extending to a position where the second curved portion intersects the body.
  • the light shielding member is located in the hollow portion.
  • a portion of the hollow portion is located in a plane in which the body is located such that a position at which the second curved portion intersects the body is compared to the adjacent two first curved portions and the body
  • the intersecting locations are recessed into the inside of the body.
  • a portion of the light blocking member is located in a plane in which the body is located and is flush with the body in the first direction and the second direction, respectively.
  • the portion of the light blocking member located in the plane in which the body is located extends to a position where the second curved portion intersects the body.
  • the backlight structure further includes a reflective plate disposed on the body in the first direction and a light guide plate disposed on the reflective plate. a portion of the light blocking member located in a plane in which the body is located and a position at which the second curved portion intersects the body, the gap being a part of the hollow portion, and the reflection A plate covers the gap.
  • a portion of the light blocking member is located between the adjacent two first curved portions and is flush with the adjacent two first curved portions in the first direction.
  • the thickness of the portion of the light blocking member between the adjacent two first curved portions is substantially equal to the thickness of the adjacent two first curved portions.
  • first direction and the second direction are substantially perpendicular to the body, respectively.
  • the length of the second curved portion in the second direction is greater than the length of the first curved portion in the first direction.
  • an end of the second curved portion remote from the body is provided with an opening or a protrusion.
  • the frame is rectangular, and the adjacent two first curved portions and the second curved portion are disposed at at least one edge of the frame.
  • the display device includes the backlight structure, the display module, and the housing as described above.
  • the display module is disposed on the backlight structure along the first direction.
  • the housing includes a rear case and a middle case located inside the rear case, the backlight structure is disposed on the middle case along the first direction, and the second bent portion is fixed to the middle case.
  • the rear case includes a body and a bent portion, and a body of the rear case is parallel to a body of the frame, and a bent portion of the rear case protrudes in a first direction from a body of the rear case, A first side of the glue layer is coupled to the curved portion of the back shell, a second side of the glue layer is coupled to the shade, the first side and the second side being opposite sides.
  • the rear case further includes a protrusion protruding inward from a curved portion of the rear case, the protrusion being parallel to a body of the rear case, and the second extension and the middle case and the The protrusions are spaced apart by a distance.
  • a mobile terminal comprising the display device as described above.
  • the backlight structure includes a frame and a light blocking member, the frame including a body, a first curved portion, a second curved portion, and a hollow portion.
  • the method includes: providing a sheet; bending a portion of the sheet in a first direction and bending another portion of the sheet in a second direction to form the body, the first bend, the second bend And the hollow portion, the first direction and the second direction are opposite, wherein the first curved portion protrudes from the body along the first direction, and the second curved portion is along the first portion Two directions protruding from the body, the second curved portion being located between two adjacent first curved portions, the hollow portion being located between the adjacent two first curved portions and extending to the a position at which the second curved portion intersects the body; and the light blocking member is formed in the hollow portion.
  • the light shielding member is a light shielding glue, and the light shielding member is filled into the hollow portion by injection molding.
  • the method further includes cutting the sheet along a cut line, the cut line being located The portion of the sheet material and the other portion of the sheet material.
  • the method further includes: thinning the light shielding member.
  • FIG. 1 is a schematic view of a display device according to a technique
  • FIG. 2 is a schematic cross-sectional view of a display device in accordance with an embodiment of the present disclosure
  • FIG. 3a is a perspective view of a backlight structure in accordance with an embodiment of the present disclosure.
  • 3b is a plan view of a backlight structure in accordance with an embodiment of the present disclosure.
  • Figure 3c is a cross-sectional view of the backlight structure of Figure 3b taken along line A-A
  • Figure 3d is a cross-sectional view of the backlight structure of Figure 3b taken along line B-B;
  • Figure 3e is a cross-sectional view of the backlight structure of Figure 3b taken along line C-C;
  • FIG. 4 is an enlarged view of a portion D of the backlight structure of FIG. 3c, in which light leakage occurs in the backlight structure;
  • FIG. 5 is a schematic structural view showing the use of an adhesive tape in the backlight structure of FIG. 4;
  • FIG. 6 is a schematic structural view showing that the tape in FIG. 5 is offset and light leakage occurs;
  • FIG. 7 is a schematic structural view of a light-shielding adhesive added to a hollow portion of a backlight structure according to an embodiment of the present disclosure
  • FIG. 8a is a schematic cross-sectional view of adding a light-shielding glue to a hollow portion of a backlight structure, in accordance with an embodiment of the present disclosure
  • FIG. 8b is a schematic perspective view of adding a light shielding adhesive to a hollow portion of a backlight structure according to an embodiment of the present disclosure
  • FIG. 8c is another perspective view of adding a light-shielding glue to a hollow portion of a backlight structure according to an embodiment of the present disclosure
  • FIG. 9 is a schematic structural view of removing excess portions of the shading gel of FIG. 8 according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural view showing a display module disposed on the backlight structure of FIG. 9; FIG.
  • FIG. 11 is a flowchart of a method of fabricating a backlight structure in accordance with an embodiment of the present disclosure
  • FIG. 12 is a schematic view of a sheet material provided in a method of fabricating a backlight structure in accordance with an embodiment of the present disclosure.
  • the display device includes a housing, a liquid crystal display module, and a back panel.
  • the inventors of the present disclosure have found that the display device currently has the following problems: 1) there is a large distance between the housing and the liquid crystal display module, so that the overall thickness of the display device is thick, and the screen occupation is relatively small; 2) the shading of the display device The effect is poor, especially the shading effect cannot be achieved for a long time; 3) the back plate and the casing cannot be sufficiently fixed, which reduces the overall firmness of the display device.
  • the display device 100 includes a housing and a liquid crystal display module 200 having a touch structure.
  • the housing includes a middle case 300 and a rear case 400, and the middle case 300 is located inside the rear case 400, and the middle case 300 and the rear case 400 are integrally formed, for example.
  • the rear case 400 is disposed at the outermost side of the display device 100 for protecting all components within the display device 100.
  • the liquid crystal display module 200 is disposed inside the middle case 300, and the middle case 300 and the liquid crystal display module 200 are fixedly connected to each other by dispensing.
  • the width A of the dispensing is approximately 0.8 mm and the gap B between the middle casing 300 and the liquid crystal display module 200 is approximately 0.3 mm, which allows the distance between the middle casing 300 and the liquid crystal display module 200 to be at least 1.1 mm. Since a distance of at least 1.1 mm is generated between the middle case 300 and the liquid crystal display module 200, the manufacturer cannot produce a display device having a large screen and an ultra-thin screen.
  • FIG. 2 is a schematic structural view of a display device according to an embodiment of the present disclosure
  • FIG. 3a is a schematic perspective view of a backlight structure according to an embodiment of the present disclosure
  • FIG. 3b is a schematic plan view of a backlight structure according to an embodiment of the present disclosure
  • FIG. 3d is a cross-sectional view of the backlight structure of FIG. 3b cut along line BB
  • FIG. 3e is a cross-sectional view of the backlight structure of FIG. 3b cut along line CC.
  • a display device according to an embodiment of the present disclosure includes a backlight structure including a frame 5.
  • the frame 5 includes: a body 51, for example, the body 51 has a uniform thickness and a flat shape; the first curved portion 6 protrudes from the body 51 in a first direction for accommodating the liquid crystal display module 2; and protrudes from the body 51 in the second direction.
  • the second bent portion 7 is fixedly connected to the middle case 3, and the first direction and the second direction are opposite to each other.
  • the first direction and the second direction are substantially perpendicular to the body 51, respectively. Since the second bent portion 7 is fixedly coupled to the middle case 3, the embodiment of the present disclosure does not need to perform the dispensing step, and does not leave a gap of approximately 0.3 mm, so that a display device having a large screen ratio and an ultra-thinness can be obtained.
  • the second bent portion 7 is integrally molded by rubber-iron mixing.
  • the second bent portion 7 is carded and connected to the middle case 3.
  • the end of the second curved portion 7 remote from the body 51 is provided with an opening or protrusion 71, and at a position corresponding to the opening or protrusion 71, the middle case 3 is provided with a protrusion or opening 31, thereby realizing the second bending portion 7 and Card and connection of the middle case 3.
  • the second curved portion and the middle casing 3 may be fixedly connected by other means, such as riveting or the like, which is not limited by the embodiment of the present disclosure.
  • the first curved portion 6 is for accommodating the liquid crystal display module 2, and the second curved portion 7 is required to be fixedly coupled to the middle case 3.
  • the length L2 of the second curved portion 7 in the second direction is, for example, larger than that of the first curved portion 6 The length L1 in one direction.
  • the frame 5 is rectangular, and the first curved portion 6 and the second curved portion 7 are both disposed at at least one edge of the frame 5, and the first curved portion 6 and the second curved portion 7 are spaced apart from each other.
  • the first curved portion 6 and the second curved portion 7 are both disposed at the three edges of the frame 5.
  • the backlight structure is side-in and includes a light source, and the first curved portion 6 and the second curved portion 7 are not provided at the edge of the frame 5 where the light source is disposed.
  • the display device includes a display module 2 and a housing in addition to the backlight structure described above.
  • the display module 2 is disposed on the backlight structure along the first direction
  • the housing includes a rear case 4 and a middle case 3 located inside the rear case 4.
  • the backlight structure is disposed on the middle case 3 along the first direction, and the second bending
  • the portion 7 is fixedly coupled to the middle case 3.
  • the rear case 4 includes a body 41 and a bent portion 42, the body 41 of the rear case 4 is parallel to the body 51 of the frame of the backlight structure, and the curved portion 42 of the rear case 4 protrudes from the rear case 4 in the first direction.
  • the body 41 is parallel to the body 51 of the frame of the backlight structure, and the curved portion 42 of the rear case 4 protrudes from the rear case 4 in the first direction.
  • the rear case 4 further includes a protrusion 43 projecting inward from the curved portion 41 of the rear case 4, the protrusion 43 being parallel to the body 41 of the rear case 4, for example, the protrusion 43 supporting other members.
  • the second extension portion 7 and the middle case 3 are spaced apart from the protrusion portion 43 by a distance d.
  • the second curved portion 7 is located between the adjacent two first curved portions 6.
  • the frame 5 also has a hollowed portion 8 between the adjacent two first curved portions 6 and extending to a position where the second curved portion 7 intersects the body 51.
  • the hollow portion 8 is formed between the plane in which the body 51 is located and the adjacent two second curved portions 6.
  • a portion of the hollow portion 8 is located in a plane in which the body 51 is located such that the position at which the second curved portion 7 intersects the body 51 is compared to the adjacent two first curved portions 6 and the body 51.
  • the intersecting positions are recessed inside the body 51.
  • the backlight structure further includes a light guide plate 21 and a reflection plate 22.
  • the display module 2 is, for example, a liquid crystal display module and includes at least a screen 23.
  • a light guide plate 21 and a reflection plate 22 are sequentially disposed at the bottom of the screen 23; that is, in the first direction, the reflection plate 22 is disposed on the body 51, the light guide plate 21 is disposed on the reflection plate 22, and the display module 2 is disposed at On the light guide plate 21. As shown in FIG.
  • one end of the tape 9 may be attached between the reflecting plate 22 and the body 51, and the other end of the tape 9 may be bent and attached along the shape of the first curved portion 6.
  • the overall firmness is not strong and cannot be permanently shaped. Therefore, in the actual product, the tape 9 is liable to be displaced, that is, the tape 9 is exposed or bulged outward (see Fig. 6), and the problem of light leakage of the display device cannot be solved for a long time.
  • the backlight structure is further optimized to reduce the thickness of the display device, improve the shading effect, and the robustness of the overall structure.
  • 7 is a schematic structural view of a light-shielding adhesive added to a hollow portion of a backlight structure according to an embodiment of the present disclosure
  • FIG. 8a is a schematic cross-sectional view of a light-shielding adhesive added to a hollow portion of a backlight structure according to an embodiment of the present disclosure
  • the backlight structure includes a frame 5 and a light blocking member 10, and the frame 5 includes at least one first curved portion 6 and at least one second curved portion 7.
  • the first bent portion 6 is for accommodating the light guide plate 21 and the reflection plate 22.
  • the second curved portion 7 is located between the adjacent two first curved portions 6, and the hollow portion 8 is located between the adjacent two first curved portions 6 and extends to a position where the second curved portion 7 intersects the body 51 At the office.
  • the light blocking member 10 is filled in the hollow portion 8 for preventing light leakage.
  • the light blocking member 10 is filled in the hollow portion 8, this eliminates the need for further tape addition in the display device, reducing the overall thickness of the display device.
  • the frame 5 is rectangular, and the adjacent two first curved portions 6 and the second curved portion 7 located therebetween are disposed at at least one edge of the frame 5.
  • the adjacent two first curved portions 6 and the second curved portion 7 located therebetween are disposed at the three edges of the frame 5, which can further reduce the thickness of the backlight module, and since it is not required Dispensing settings can increase the screen ratio of the screen.
  • the first curved portion 6 and the second curved portion 7 are not provided at the edge of the frame 5 where the light source is disposed.
  • the light blocking member 10 is a light-shielding glue which is filled in the hollow portion 8 by injection molding.
  • the display device further includes a glue layer 25, the first side of which is connected to the curved portion 42 of the rear case 4, and the second side of the glue layer 25 is connected to the light blocking member 10, the first side and The second side is the opposite side; that is, the light blocking member 10 is connected to both the first curved portion 6 and the rubber layer 25 to the housing. Therefore, the light shielding member 10 is not displaced due to long-term use, and the light shielding effect is improved. Therefore, the embodiments of the present disclosure can reduce the thickness of the display device and improve the shading effect as well as the overall robustness.
  • a portion of the light blocking member 10 is also located in the plane in which the body 51 is located. Further, for example, as shown in FIGS. 8a-8c, the portions of the light blocking member 10 in the plane in which the body 51 is located are flush with the body 51 in the first direction and the second direction, respectively, to avoid adding a backlight structure. And the thickness of the display device.
  • the light blocking member 10 may be filled in a predetermined area of the hollow portion 8, in which case the portion of the light blocking member 10 in the plane in which the body 51 is located and the second curved portion 7 and the body 51 are provided. There is a gap 81 between the intersecting positions, which is clearly a part of the hollow portion 8, and the reflecting plate 22 covers the gap 81. Since the reflecting plate 22 can cover the gap 81, light is not leaked from the gap 81. For the structure shown in FIG. 8b, since the light blocking member 10 does not need to completely cover the portion of the hollow portion 8 in the plane in which the body 10 is located, the manufacturing difficulty is reduced and a large process margin can be obtained.
  • the light blocking member 10 may be filled in the entire area of the hollow portion 8, in which case the portion of the light blocking member 10 in the plane in which the body 51 is located extends to the second curved portion 7 and the body 51.
  • the intersecting locations are to completely cover the portion of the hollow portion 8 that lies within the plane of the body 10.
  • a portion of the light blocking member 8 is located between the adjacent two first curved portions 6 and is flush with the adjacent two first curved portions 6 in the first direction of 6.
  • the portion of the light blocking member 8 between the adjacent two first curved portions 6 is connected to the adjacent two first curved portions 6, respectively.
  • the inventors have found that due to limitations of the process technology and the small thickness of the first bent portion 6, there is a surplus of the light-shielding glue 11 to be filled to the outside of the frame 5.
  • the light-shielding glue may be thinned after filling the light-shielding glue, for example, the excess light-shielding glue 11 is removed by polishing. For example, in the process of removing the excess visor 11, all of the excess visor 11 filled to the outside of the frame 5 is removed.
  • the thickness of the light shielding glue is substantially equal to the thickness of the frame 5.
  • the thickness of the portion of the light blocking member 10 between the adjacent two first curved portions 6 is substantially equal to the thickness of the adjacent two first curved portions 6.
  • a display device including the backlight structure, the display module, and the housing as described above. Due to the characteristics of the backlight structure, the display device has a thinner thickness and a firm structure. For details of the display device, refer to the above description, and details are not described herein again.
  • the display module is glued into the first curved portion 6 by the bottom surface, and the second curved portion 7 is snapped and fixed to the housing.
  • the display device is a liquid crystal display device.
  • the mobile terminal comprising the display device as described above.
  • the mobile terminal is a mobile phone, an electronic photo frame, or the like.
  • the backlight structure includes a frame 5 and a light blocking member 10, and the frame 5 includes a body 51, a first curved portion 6, a second curved portion 7, and a hollow portion 8.
  • the method includes: referring to FIG. 12, a sheet 50 is provided, for example, the sheet 50 is an iron-iron integral structure; see FIG.
  • a portion of the sheet 50 is bent in a first direction and bent in a second direction Folding another portion of the sheet 50 to form the body 51, the first curved portion 6, the second curved portion 7, and the hollow portion, the first direction and the second direction being opposite, wherein the first curved portion 6 is along the first direction Projecting on the body 51, the second curved portion 7 protrudes from the body 51 in the second direction, the second curved portion 7 is located between the adjacent two first curved portions 6, and the hollow portion 8 is located in the adjacent two Between a curved portion 6 and extending to a position where the second curved portion 7 intersects the body 51; and referring to Figures 8a to 8c, a light blocking member 10 is formed in the hollow portion 8.
  • the light blocking member 10 is a light shielding glue, and the light blocking member 10 is filled into the hollow portion 8 by injection molding.
  • the method further includes cutting the sheet 50 along the cut line 501, the cut line 501 is located between the portion of the sheet 50 and the other portion of the sheet 50.
  • the first curved portion 6 and the second curved portion 7 can be conveniently obtained.
  • the method further includes thinning the light shielding member 10.
  • the method further includes thinning the light shielding member 10.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种背光结构及其制造方法、显示装置和移动终端。背光结构包括框架(5)和遮光件(10)，框架(5)包括本体(51)、第一弯曲部(6)、以及第二弯曲部(7)，第一弯曲部(6)沿第一方向突出于本体(51)，第二弯曲部(7)沿第二方向突出于本体(51)，第一方向和第二方向相反，第二弯曲部(7)位于相邻的两个第一弯曲部(6)之间。框架(5)还具有镂空部(8)，镂空部(8)位于相邻的两个第一弯曲部(6)之间并延伸至第二弯曲部(7)与本体(51)相交的位置处。遮光件(10)位于镂空部(8)内。

Description

背光结构及其制造方法、显示装置和移动终端
本申请要求于2018年5月14日递交的第201820715103.X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
本公开的实施例涉及一种背光结构及其制造方法、显示装置和移动终端。
背景技术
随着科技的发展与进步，手机已经成为人们生活中必不可少的电子设备。由于市场的竞争以及人们对手机要求的提升，超薄和窄边框的手机已经成为目前手机发展的主流趋势。手机具有更大的屏占比将会给消费者带来更好的视觉效果和体验感觉。
发明内容
根据本公开的实施例，提供一种背光结构，包括框架和遮光件。所述框架包括本体、第一弯曲部、以及第二弯曲部，所述第一弯曲部沿第一方向突出于所述本体，所述第二弯曲部沿第二方向突出于所述本体，所述第一方向和所述第二方向相反，所述第二弯曲部位于相邻的两个第一弯曲部之间。所述框架还具有镂空部，所述镂空部位于所述相邻的两个第一弯曲部之间并延伸至所述第二弯曲部与所述本体相交的位置处。所述遮光件位于所述镂空部内。
例如，所述镂空部的一部分位于所述本体所在的平面内，以使得所述第二弯曲部与所述本体相交的位置相比于所述相邻的两个第一弯曲部与所述本体相交的位置凹入所述本体内侧。
例如，所述遮光件的一部分位于所述本体所在的平面内并分别在所述第一方向上和所述第二方向上与所述本体齐平。
例如，所述遮光件的位于所述本体所在的平面内的所述部分延伸至所述 第二弯曲部与所述本体相交的位置处。
例如，所述背光结构还包括沿所述第一方向设置在所述本体上的反射板以及设置在所述反射板上的导光板。所述遮光件的位于所述本体所在的平面内的所述部分和所述第二弯曲部与所述本体相交的位置之间具有空隙，该空隙为所述镂空部的一部分，且所述反射板覆盖所述空隙。
例如，所述遮光件的一部分位于所述相邻的两个第一弯曲部之间并在所述第一方向上与所述相邻的两个第一弯曲部齐平。
例如，所述遮光件的位于所述相邻的两个第一弯曲部之间的所述部分的厚度基本等于所述相邻的两个第一弯曲部的厚度。
例如，所述第一方向和所述第二方向分别基本垂直于所述本体。
例如，所述第二弯曲部的沿所述第二方向的长度大于所述第一弯曲部的沿所述第一方向的长度。
例如，所述第二弯曲部的远离所述本体的端部设置有开口或者突起。
例如，所述框架为矩形，所述相邻的两个第一弯曲部和所述第二弯曲部设置在所述框架的至少一个边缘处。
根据本公开的实施例，还提供一种显示装置。该显示装置包括如上所述的背光结构、显示模组以及壳体。沿所述第一方向所述显示模组设置在所述背光结构上。所述壳体包括后壳和位于后壳内侧的中壳，沿所述第一方向所述背光结构设置在所述中壳上，并且所述第二弯曲部固定至所述中壳。
例如，所述后壳包括本体和弯曲部，所述后壳的本体与所述框架的本体平行，所述后壳的弯曲部沿所述第一方向突出于所述后壳的本体，所述胶层的第一侧连接至所述后壳的弯曲部，所述胶层的第二侧连接至所述遮光件，所述第一侧和所述第二侧为相反侧。
例如，所述后壳还包括自所述后壳的弯曲部向内侧突起的突起部，该突起部平行于所述后壳的本体，并且所述第二延伸部和所述中壳与所述突起部间隔开一距离。
根据本公开的实施例，提供一种移动终端，包括如上所述的显示装置。
根据本公开的实施例，提供一种背光结构的制造方法。该背光结构包括框架和遮光件，所述框架包括本体、第一弯曲部、第二弯曲部以及镂空部。所述方法包括：提供板材；沿第一方向弯折所述板材的一部分以及沿第二方 向弯折所述板材的另一部分以形成所述本体、所述第一弯曲部，所述第二弯曲部和所述镂空部，所述第一方向和所述第二方向相反，其中，所述第一弯曲部沿所述第一方向突出于所述本体，所述第二弯曲部沿所述第二方向突出于所述本体，所述第二弯曲部位于相邻的两个第一弯曲部之间，所述镂空部位于所述相邻的两个第一弯曲部之间并延伸至所述第二弯曲部与所述本体相交的位置处；以及在所述镂空部内形成所述遮光件。
例如，所述遮光件为遮光胶，且通过注塑成型将所述遮光件填充入所述镂空部。
例如，在所述沿第一方向弯折所述板材的一部分以及沿第二方向弯折所述板材的另一部分之前，所述方法还包括：沿剪裁线剪裁所述板材，所述剪裁线位于所述板材的所述一部分以及所述板材的所述另一部分之间。
例如，在通过注塑成型将所述遮光件填充入所述镂空部之后，所述方法还包括：减薄所述遮光件。
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1为根据一种技术的显示装置的示意图；
图2为根据本公开实施例的显示装置的截面结构示意图；
图3a为根据本公开实施例的背光结构的立体示意图；
图3b为根据本公开实施例的背光结构的平面示意图；
图3c为图3b的背光结构沿线A-A切割的剖视图
图3d为图3b的背光结构沿线B-B切割的剖视图；
图3e为图3b的背光结构沿线C-C切割的剖视图；
图4为图3c的背光结构的D部分的放大图，其中该背光结构发生漏光；
图5为在图4的背光结构中采用胶带的结构示意图；
图6为图5中的胶带发生偏移且产生漏光的结构示意图；
图7为根据本公开实施例的在背光结构的镂空部未添加遮光胶的结构示意图；
图8a为根据本公开实施例的在背光结构的镂空部添加遮光胶的截面示意图；
图8b为根据本公开实施例的在背光结构的镂空部添加遮光胶的立体示意图；
图8c为根据本公开实施例的在背光结构的镂空部添加遮光胶的另一立体示意图；
图9为根据本公开实施例的去除图8中遮光胶的多余部分的结构示意图；
图10为在图9的背光结构上设置显示模组后的结构示意图；
图11为根据本公开实施例的背光结构的制造方法的流程图；以及
图12为根据本公开实施例的背光结构的制造方法中提供板材的示意图。
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。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现在“包括”或者“包含”前面的元件或者物件涵盖出现在“包括”或者“包含”后面列举的元件或者物件及其等同，并不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
例如，显示装置包括壳体、液晶显示模组和背板。本公开的发明人发现显示装置目前还存在以下问题：1)壳体与液晶显示模组之间存在较大的距离，使得显示装置整体厚度较厚，屏占比较小；2)显示装置的遮光效果较差，尤 其无法长时间达到遮光效果；3)背板与壳体之间无法充分固定，降低了显示装置整体的牢固性。
图1为一种显示装置的示意图。该显示装置100包括壳体和具有触控结构的液晶显示模组200。壳体包括中壳300和后壳400，中壳300位于后壳400内侧，中壳300和后壳400例如一体成型。该后壳400设置在显示装置100的最外侧，用于保护显示装置100内的所有部件。液晶显示模组200设置在中壳300的内部，中壳300和液晶显示模组200之间通过点胶的方式彼此固定连接。点胶的宽度A大致为0.8mm并且中壳300和液晶显示模组200之间的间隙B大致为0.3mm，这使得中壳300和液晶显示模组200之间的距离至少为1.1mm。由于中壳300和液晶显示模组200之间会产生至少为1.1mm的距离，使得生产商无法生产出屏占比大且超薄的显示装置。
图2为根据本公开实施例的显示装置的结构示意图，图3a为根据本公开实施例的背光结构的立体示意图，图3b为根据本公开实施例的背光结构的平面示意图；图3c为图3b的背光结构沿线A-A切割的剖视图，图3d为图3b的背光结构沿线B-B切割的剖视图，以及图3e为图3b的背光结构沿线C-C切割的剖视图。根据本公开实施例显示装置包括背光结构，该背光结构包括框架5。例如，框架5包括：本体51，例如本体51厚度均匀且为平板状；沿第一方向突出于本体51第一弯曲部6，用于容纳液晶显示模组2；沿第二方向突出于本体51的第二弯曲部7，与中壳3进行固定连接，第一方向和第二方向彼此相反。例如，第一方向和第二方向分别基本垂直于本体51。由于第二弯曲部7与中壳3固定连接，本公开实施例无需进行点胶步骤，并且不会留有大致为0.3mm的空隙，因此能够获得屏占比大且超薄的显示装置。
例如，第二弯曲部7通过胶铁混合一体成型。例如，第二弯曲部7与中壳3卡和连接。例如，第二弯曲部7的远离本体51的端部设置有开口或者突起71，在与该开口或突起71对应的位置处中壳3设置有突起或开口31，从而实现第二弯曲部7与中壳3的卡和连接。例如，第二弯曲部与中壳3还可以通过其他方式固定连接，例如铆接等，本公开实施例对此不进行限制。
如上所述，第一弯曲部6用于容纳液晶显示模组2，而第二弯曲部7需要与中壳3固定连接。为了使第一弯曲部6和第二弯曲部7分别实现其功能且不增加显示装置的整体厚度，例如第二弯曲部7的沿第二方向的长度L2 例如大于第一弯曲部6的沿第一方向的长度L1。
例如，框架5为矩形，第一弯曲部6和第二弯曲部7均设置在框架5的至少一个边缘处，且第一弯曲部6和第二弯曲部7彼此间隔设置。例如，在本公开实施例中，第一弯曲部6和第二弯曲部7均设置在框架5的三个边缘处。例如，背光结构为侧入式并包括光源，在框架5的设置有光源的边缘不设置第一弯曲部6和第二弯曲部7。
例如，继续参见图2，显示装置除了包括上述背光结构之外，还包括显示模组2以及壳体。例如，沿第一方向显示模组2设置在背光结构上，壳体包括后壳4和位于后壳4内侧的中壳3，沿第一方向背光结构设置在中壳3上，并且第二弯曲部7固定连接至中壳3。
例如，继续参见图2，后壳4包括本体41和弯曲部42，后壳4的本体41与背光结构的框架的本体51平行，后壳4的弯曲部42沿第一方向突出于后壳4的本体41。
例如，继续参见图2，后壳4还包括自后壳4的弯曲部41向内侧突起的突起部43，该突起部43平行于后壳4的本体41，例如该突起部43支撑其他部件。例如，为了降低制作和安装难度，第二延伸部7和中壳3与突起部43间隔开一距离d。
例如，第二弯曲部7位于相邻的两个第一弯曲部6之间。例如，框架5还具有镂空部8，镂空部8位于相邻的两个第一弯曲部6之间并延伸至第二弯曲部7与本体51相交的位置处。从图3a可以清楚地看到，由于弯折形成第二弯曲部7，所以在本体51所在的平面以及相邻的两个第二弯曲部6之间形成了镂空部8。例如，如图3a所示，镂空部8的一部分位于本体51所在的平面内，以使得第二弯曲部7与本体51相交的位置相比于相邻的两个第一弯曲部6与本体51相交的位置凹入本体51内侧。在本公开的实施例中，参见下面将要描述的图4，背光结构还包括导光板21和反射板22。显示模组2例如为液晶显示模组并至少包括屏幕23。在屏幕23的底部依次设置有导光板21和反射板22；也就是，沿第一方向，反射板22设置在本体51上，导光板21设置在反射板22上，且显示模组2设置在导光板21上。如图4所示，在将导光板21、反射板22和屏幕23放置在本体51上后，导光板21所发射出的一部分光会通过镂空部8从背部结构的内侧朝方向a发射出来，如图4 箭头方向所示，此时产生的漏光将会大大降低显示效果。
为了解决上述漏光的问题，如图5所示，例如可以将胶带9的一端贴附在反射板22与本体51之间，而胶带9的另一端沿第一弯曲部6的形状弯曲并贴附在第一弯曲部6的内侧。但是，在使用过程中由于胶带9偏软，整体牢固性不强，无法持久定型。因此，在实际产品中胶带9很容易发生偏移，即，胶带9外露或向外拱起(参见图6)，无法长时间解决显示装置漏光的问题。
此外，由于在第一弯曲部6的内侧多设置了一层胶带9，且该胶带9具有厚度b，这使得将增加背光结构5的整体厚度，无法获得超薄的显示装置。
为了解决上述问题，本公开实施例对背光结构进行了进一步优化，以降低显示装置的厚度，提高遮光效果以及整体结构的牢固性。图7为根据本公开实施例的在背光结构的镂空部未添加遮光胶的结构示意图，图8a为根据本公开实施例的在背光结构的镂空部添加遮光胶的截面示意图，图8b为根据本公开实施例的在背光结构的镂空部添加遮光胶的立体示意图，图8c为根据本公开实施例的在背光结构的镂空部添加遮光胶的另一立体示意图。例如，背光结构包括框架5和遮光件10，框架5包括至少一个第一弯曲部6和至少一个第二弯曲部7。第一弯曲部6用于容纳导光板21和反射板22。第二弯曲部7位于相邻的两个第一弯曲部6之间，镂空部8位于该相邻的两个第一弯曲部6之间并延伸至第二弯曲部7与本体51相交的位置处。例如，遮光件10填充在镂空部8内，用于防止漏光。
由于将遮光件10填充在镂空部8内，这使得在显示装置中无需进一步添加胶带，减少了显示装置的整体厚度。
例如，框架5为矩形，所述相邻的两个第一弯曲部6和位于它们之间的第二弯曲部7设置在框架5的至少一个边缘处。例如，所述相邻的两个第一弯曲部6和位于它们之间的第二弯曲部7设置在框架5的三个边缘处，这样能够进一步降低背光模组的厚度，且由于不需要进行点胶设置，能够加大屏幕的屏占比。例如，在框架5的设置有光源的边缘不设置第一弯曲部6和第二弯曲部7。
例如，遮光件10为遮光胶，该遮光胶以注塑成型的方式填充在镂空部8内。
例如，参见图2，显示装置还包括胶层25，胶层25的第一侧连接至后壳4的弯曲部42，胶层25的第二侧连接至遮光件10，所述第一侧和所述第二侧为相反侧；也就是，遮光件10既与第一弯曲部6连接又通过胶层25与壳体连接。因此，遮光件10不会由于长时间使用而发生位移，提高了遮光效果。因此，本公开实施例既能够减少显示装置的厚度，又能够提高遮光效果以及整体牢固性。
例如，如图8a至8c所示，由于镂空部8的一部分位于本体51所在的平面内，因此为了防止在镂空部8漏光，遮光件10的一部分也位于本体51所在的平面内。进一步地，例如，如图8a-8c所示，遮光件10的位于本体51所在的平面内的所述部分分别在第一方向上和第二方向上与本体51齐平，以避免增加背光结构和显示装置的厚度。
例如，如图8b所示，遮光件10可以填充在镂空部8的预设区域内，在此情形下，遮光件10的位于本体51所在的平面内的部分和第二弯曲部7与本体51相交的位置之间具有空隙81，该空隙81显然为镂空部8的一部分，且反射板22覆盖该空隙81。由于反射板22可以覆盖空隙81，因而不会从空隙81漏光。对于图8b所示的结构，由于遮光件10不需要完全覆盖镂空部8的位于本体10所在的平面内的部分，因此降低了制作难度并可具有较大的工艺裕度。
例如，如图8c所示，遮光件10可以填充在镂空部8的整个区域内，在此情形下，遮光件10的位于本体51所在的平面内的部分延伸至第二弯曲部7与本体51相交的位置处，以完全覆盖镂空部8的位于本体10所在的平面内的部分。
例如，如图8b和8c所示，遮光件8的一部分位于相邻的两个第一弯曲部6之间并在6第一方向上与该相邻的两个第一弯曲部6齐平，以在防止漏光的同时避免增加背光结构和显示装置的厚度。例如，遮光件8的位于相邻的两个第一弯曲部6之间的部分分别与相邻的两个第一弯曲部6连接。
在制造本公开实施例的背光结构的框架5的过程中，发明人发现由于工艺技术的限制以及第一弯曲部6的厚度较小，因此会有多余遮光胶11填充到框架5的外侧。为了解决上述技术问题，如图9和图10所示，可以在填充遮光胶后对遮光胶进行减薄，例如采用抛光方式去除多余遮光胶11。例如，在 去除多余遮光胶11的过程中，将填充到框架5外侧的所有多余遮光胶均11去除。在实际生产过程中，由于生产工艺等的限制，抛光过程中，也可以保留填充到框架5外侧的部分遮光胶。因此，在本公开实施例中，遮光胶的厚度基本等于框架5的厚度。例如，遮光件10的位于相邻的两个第一弯曲部6之间的部分的厚度基本等于该相邻的两个第一弯曲部6的厚度。之后，在第一弯曲部6内设置导光板21和反射板22。
根据本公开的实施例，还提供了一种显示装置，其包括如上所述的背光结构、显示模组以及壳体。由于背光结构的特性，使得显示装置具有更薄的厚度以及牢固的结构。关于显示装置的具体细节，可以参见上面的描述，在此不再赘述。例如，显示模组通过底面胶粘合在第一弯曲部6内，第二弯曲部7卡和固定在壳体上。例如，该显示装置为液晶显示装置。
根据本公开的实施例，还提供了一种移动终端，其包括如上所述的显示装置。例如，该移动终端为手机、电子相框等。
根据本公开的实施例，还提供了一种背光结构的制造方法。例如，背光结构包括框架5和遮光件10，框架5包括本体51、第一弯曲部6、第二弯曲部7以及镂空部8。例如，如图11所示，所述方法包括：参见图12，提供板材50，例如板材50为胶铁一体结构；参见图3a，沿第一方向弯折板材50的一部分以及沿第二方向弯折板材50的另一部分以形成本体51、第一弯曲部6，第二弯曲部7和镂空部，所述第一方向和所述第二方向相反，其中，第一弯曲部6沿第一方向突出于本体51，第二弯曲部7沿第二方向突出于本体51，第二弯曲部7位于相邻的两个第一弯曲部6之间，镂空部8位于所述相邻的两个第一弯曲部6之间并延伸至第二弯曲部7与本体51相交的位置处；以及参见图8a至8c，在镂空部8内形成遮光件10。
例如，遮光件10为遮光胶，且通过注塑成型将遮光件10填充入镂空部8。
例如，如图12所示，在沿第一方向弯折板材50的一部分以及沿第二方向弯折板材50的另一部分之前，所述方法还包括：沿剪裁线501剪裁板材50，该剪裁线501位于板材50的所述一部分以及板材50的所述另一部分之间。从而，可以方便地得到第一弯曲部6和第二弯曲部7。
例如，如图9和10所示，在通过注塑成型将遮光件10填充入镂空部8 之后，所述方法还包括减薄遮光件10。从而，在防止漏光的同时可以避免增加背光结构和显示装置的厚度并增加屏占比。
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 (19)

  1. 一种背光结构，包括框架和遮光件，其中，
    所述框架包括本体、第一弯曲部、以及第二弯曲部，所述第一弯曲部沿第一方向突出于所述本体，所述第二弯曲部沿第二方向突出于所述本体，所述第一方向和所述第二方向相反，所述第二弯曲部位于相邻的两个第一弯曲部之间，
    所述框架还具有镂空部，所述镂空部位于所述相邻的两个第一弯曲部之间并延伸至所述第二弯曲部与所述本体相交的位置处，并且，
    所述遮光件位于所述镂空部内。
  2. 根据权利要求1所述的背光结构，其中，所述镂空部的一部分位于所述本体所在的平面内，以使得所述第二弯曲部与所述本体相交的位置相比于所述相邻的两个第一弯曲部与所述本体相交的位置凹入所述本体内侧。
  3. 根据权利要求2所述的背光结构，其中，所述遮光件的一部分位于所述本体所在的平面内并分别在所述第一方向上和所述第二方向上与所述本体齐平。
  4. 根据权利要求3所述的背光结构，其中，所述遮光件的位于所述本体所在的平面内的所述部分延伸至所述第二弯曲部与所述本体相交的位置处。
  5. 根据权利要求3所述的背光结构，还包括沿所述第一方向设置在所述本体上的反射板以及设置在所述反射板上的导光板，
    所述遮光件的位于所述本体所在的平面内的所述部分和所述第二弯曲部与所述本体相交的位置之间具有空隙，该空隙为所述镂空部的一部分，且所述反射板覆盖所述空隙。
  6. 根据权利要求1-4任一项所述的背光结构，其中，所述遮光件的一部分位于所述相邻的两个第一弯曲部之间并在所述第一方向上与所述相邻的两个第一弯曲部齐平。
  7. 根据权利要求6所述的背光结构，其中，所述遮光件的位于所述相邻的两个第一弯曲部之间的所述部分的厚度基本等于所述相邻的两个第一弯曲部的厚度。
  8. 根据权利要求1-7任一项所述的背光结构，其中，所述第一方向和所 述第二方向分别基本垂直于所述本体。
  9. 根据权利要求1-8任一项所述的背光结构，其中，所述第二弯曲部的沿所述第二方向的长度大于所述第一弯曲部的沿所述第一方向的长度。
  10. 根据权利要求1-9任一项所述的背光结构，其中，所述第二弯曲部的远离所述本体的端部设置有开口或者突起。
  11. 根据权利要求1-10任一项所述的背光结构，其中，所述框架为矩形，所述相邻的两个第一弯曲部和所述第二弯曲部设置在所述框架的至少一个边缘处。
  12. 一种显示装置，包括权利要求1-11任一项所述的背光结构、显示模组以及壳体，其中，
    沿所述第一方向所述显示模组设置在所述背光结构上，
    所述壳体包括后壳和位于后壳内侧的中壳，沿所述第一方向所述背光结构设置在所述中壳上，并且所述第二弯曲部固定至所述中壳。
  13. 根据权利要求12所述的显示装置，还包括胶层，其中，
    所述后壳包括本体和弯曲部，所述后壳的本体与所述框架的本体平行，所述后壳的弯曲部沿所述第一方向突出于所述后壳的本体，
    所述胶层的第一侧连接至所述后壳的弯曲部，所述胶层的第二侧连接至所述遮光件，所述第一侧和所述第二侧为相反侧。
  14. 根据权利要求12所述的显示装置，其中，
    所述后壳还包括自所述后壳的弯曲部向内侧突起的突起部，该突起部平行于所述后壳的本体，并且
    所述第二延伸部和所述中壳与所述突起部间隔开一距离。
  15. 一种移动终端，包括权利要求12-14任一项所述的显示装置。
  16. 一种背光结构的制造方法，该背光结构包括框架和遮光件，所述框架包括本体、第一弯曲部、第二弯曲部以及镂空部，其中，
    所述方法包括：
    提供板材；
    沿第一方向弯折所述板材的一部分以及沿第二方向弯折所述板材的另一部分以形成所述本体、所述第一弯曲部，所述第二弯曲部和所述镂空部，所述第一方向和所述第二方向相反，其中，所述第一弯曲部沿所述第一方向突 出于所述本体，所述第二弯曲部沿所述第二方向突出于所述本体，所述第二弯曲部位于相邻的两个第一弯曲部之间，所述镂空部位于所述相邻的两个第一弯曲部之间并延伸至所述第二弯曲部与所述本体相交的位置处；以及
    在所述镂空部内形成所述遮光件。
  17. 根据权利要求16所述的制造方法，其中，所述遮光件为遮光胶，且通过注塑成型将所述遮光件填充入所述镂空部。
  18. 根据权利要求16所述的制造方法，其中，在所述沿第一方向弯折所述板材的一部分以及沿第二方向弯折所述板材的另一部分之前，所述方法还包括：
    沿剪裁线剪裁所述板材，所述剪裁线位于所述板材的所述一部分以及所述板材的所述另一部分之间。
  19. 根据权利要求17所述的制造方法，其中，在通过注塑成型将所述遮光件填充入所述镂空部之后，所述方法还包括：减薄所述遮光件。
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