WO2023070266A1 - 背光模组及显示装置 - Google Patents

背光模组及显示装置 Download PDF

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Publication number
WO2023070266A1
WO2023070266A1 PCT/CN2021/126097 CN2021126097W WO2023070266A1 WO 2023070266 A1 WO2023070266 A1 WO 2023070266A1 CN 2021126097 W CN2021126097 W CN 2021126097W WO 2023070266 A1 WO2023070266 A1 WO 2023070266A1
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WO
WIPO (PCT)
Prior art keywords
light
light source
backlight module
conversion element
optical film
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PCT/CN2021/126097
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English (en)
French (fr)
Inventor
陈瑞麟
李品勋
苏益楠
Original Assignee
瑞仪光电(苏州)有限公司
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Application filed by 瑞仪光电(苏州)有限公司 filed Critical 瑞仪光电(苏州)有限公司
Priority to PCT/CN2021/126097 priority Critical patent/WO2023070266A1/zh
Publication of WO2023070266A1 publication Critical patent/WO2023070266A1/zh

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

Definitions

  • the present application relates to a display technology, and in particular to a backlight module and a display device with the backlight module.
  • the design trend of the display device is developing from the previous bulky and heavy appearance to the direction of thinning and light weight, and the frame width of the display device is gradually tending to the design of the narrow frame, so that the overall volume of the display device is reduced and the same size
  • the area of the display picture that can be seen under the display device is larger, and the visual effect is better.
  • the direct-type backlight module arranges a plurality of light-emitting diodes in an array and places them behind a diffuser plate and a Liquid-Crystal Display (LCD) to directly illuminate the LCD.
  • the direct-lit backlight module can quickly fine-tune the brightness of the light-emitting diodes according to the brightness changes of different parts of the screen, greatly improving the dynamic contrast ratio to the best level.
  • the frame of the display device can no longer provide the function of shielding unexpected light, so the backlight module will produce light leakage or halo around the frame.
  • the blue light emitting diode Light Emitting Diode, LED
  • the blue light is converted into white light through the wavelength conversion film in the optical film group.
  • the thinner or the packaging problem makes the blue light conversion efficiency at the edge lower, and then blue light leakage or blue halo will occur around the display area, so the image of the liquid crystal display device will have the problem of edge bluishness.
  • the current method is to print yellow ink on the bottom of the prism sheet or on other optical films, but because the surface of the optical film is smooth, the ink is printed on the film.
  • the ink on the products above will fall off after the impact drop test, so it is still easy to produce blue light leakage or blue halo around the display area.
  • the purpose of the present application is to provide a backlight module and a display device, which are used to improve the peripheral blue halo and the light conversion element is not easy to fall off.
  • the present application provides a backlight module
  • the backlight module includes: a frame, the frame includes a side wall, the side wall frame surrounds the accommodation space, the frame has at least one first joint portion;
  • the light source module arranged in the accommodating space, the light source module includes a substrate, and a plurality of light sources arranged on the substrate;
  • an optical film group arranged above the light source module, and located in the accommodating space, wherein The optical film group has at least one second joint part, the second joint part is combined with the corresponding first joint part;
  • the light conversion part is arranged on the side of the side wall facing the light source, and the light conversion part
  • the light emitted by the light source can be converted into white light.
  • the height of the light conversion element is not less than the thickness of the light source module.
  • the height of the light conversion element is not less than the thickness of the combination of the light source module and the optical film set.
  • the light source module further includes encapsulant, the encapsulant covers the light source and forms a main light-emitting surface and a light-emitting side, the light-emitting side faces the light conversion element, and the height of the light conversion element is not less than the The height of the glowing side.
  • the first combining portion is a plurality of grooves on the side wall
  • the second combining portion of the optical film set is a plurality of lugs
  • the lugs are correspondingly combined with the grooves.
  • the frame further includes a plate body, the side wall is arranged at the periphery of the plate body, the first joint part is at least one protrusion extending upward from the plate body, the second part of the optical film group The combining portion is at least one through hole, and the through hole is correspondingly combined with the protrusion.
  • the light conversion element is arranged on the side wall around the optical film group, and at least one notch is formed, and the position of the notch corresponds to the joint position of the first joint part and the second joint part.
  • the present application provides a display device, the structure of which includes: the aforementioned backlight module, and a liquid crystal panel, the liquid crystal panel is arranged above the optical film group, and the liquid crystal panel is supported by the side wall top surface.
  • the backlight module of the present application and the light conversion part on the side wall of the display device can withstand the impact test or long-term use, and the problem of light conversion part falling off is not easy to occur.
  • FIG. 1 is a schematic diagram of the backlight module of the embodiment of the present case.
  • FIG. 2 is a schematic cross-sectional view of the backlight module of the embodiment of the present case.
  • FIG. 3 is a schematic diagram of a backlight module according to another embodiment of the present invention.
  • FIG. 4 is a schematic cross-sectional view of a backlight module with encapsulant in the light source module of this case.
  • FIG. 5 is the second schematic cross-sectional view of the backlight module with encapsulant for the light source module of this case.
  • FIG. 6 is a schematic diagram of a display device in an embodiment of the present case.
  • FIG. 1 and FIG. 2 are schematic diagrams and cross-sectional diagrams of the backlight module of the present application.
  • the backlight module 100, the backlight module 100 includes: a frame 200, a light source module 300 placed in the frame 200, an optical film group 400 placed on the light source module 300, and the frame 200 facing the
  • the light conversion element 500 on one side of the light source module 300 does not overlap or scratch with other components, so the light conversion element 500 can withstand the impact test or long-term use, and is not easy to generate light. The problem that the conversion part 500 falls off.
  • the frame 200 includes a board body 210, and a side wall 220 disposed on the periphery of the board body 210, the board body 210 and the side wall 220 form an accommodating space 230, and the frame 200 has at least one first joint portion 240.
  • the frame 200 can be a part of the front frame, plastic frame or metal backboard, and the side wall 220 can be a side formed by extending toward the light source 320 in the front frame, plastic frame or metal backboard, and does not This is the limit.
  • the frame 200 in this embodiment is a metal backboard, and the side wall 220 extends upward from the edge of the metal backboard.
  • the light source module 300 includes a substrate 310, and a plurality of light sources 320 disposed on the substrate 310, wherein the substrate 310 is disposed on the board body 210; the light sources 320 are light-emitting diodes (Light-Emitting Diode, LED), However, other types of light emitting elements are also possible.
  • the light source 320 may be an unpackaged light-emitting chip cut directly from a wafer, such as a light-emitting diode chip, such as a grain-level nitride light-emitting diode chip that emits blue light at a dominant wavelength, that is, Suitable for providing blue light rays, but not limited thereto.
  • the optical film set 400 is disposed above the light source module 300 and located in the accommodating space 230, wherein the optical film set 400 has at least one second joint portion 410, and the second joint portion 410 corresponds to The first joint portion 240 is combined.
  • the backlight module 100 of this embodiment is a direct type backlight module, and the optical film set 400 may include optical films such as a diffusion plate and a wavelength conversion film.
  • the light conversion element 500 is disposed on the inner surface of the side wall 220 , facing the side of the light source 320 , and the light conversion element 500 can be converted into white light by the light L emitted by the light source 320 .
  • the light conversion element 500 is yellow ink, or the light conversion element 500 is yellow phosphor powder, which can be excited by blue light to emit white light, but not with This is the limit. Because the optical film set 400 is located in the accommodating space 230 surrounded by the side wall 220, when the light conversion element 500 is arranged on the inner surface of the side wall 220, the optical film set 400 will emit from the edge.
  • the light L is converted into white light, thereby reducing the bluish phenomenon of light leakage at the edge of the light source module 100 .
  • the optical diaphragm group is carried by the side wall and protrudes out of the accommodation space. This design cannot allow the light emitted from the edge of the optical diaphragm group to be converted into white light, and it is still prone to edge bluishness .
  • the backlight module 100 of this embodiment by disposing the light converting member 500 on the surface between the inner surface of the side wall 220 and the light source module 300, when the light L of the light source 320 is transmitted to the backlight module 100
  • the edge of the optical film set 400 is not passed, the part of the light that does not pass through the optical film set 400 will be converted by the light conversion element 500 into light color complementary.
  • the arrangement of the light converting element 500 can reduce the bluish phenomenon caused by light leakage from the edge of the backlight module 100 .
  • the light conversion element 500 of this embodiment can avoid the occurrence of light conversion element 500 (yellow ink or yellow phosphor) by changing the position of the light conversion element 500.
  • the light conversion element 500 in the backlight module 100 of this embodiment is located on the side wall 220 of the frame 200, and the light conversion element 500 will not overlap with other components or produce scratches, so the light conversion The surface of the piece 500 will not fall off due to the friction of relative displacement.
  • the substrate 310 of the light source module 300 located on the board 210 is fixedly arranged on the surface of the board 210, for example, is pasted between the board 210 and the substrate 310 with a double-sided adhesive tape, so that the The substrate 310 of the light source module 300 will not scratch the surface of the light converting element 500 .
  • the light conversion member 500 surrounds the periphery of the light source module 300 and the optical film set 400, the height of the light conversion member 500 is preferably not less than the thickness of the light source module 300, or the light conversion member The height of 500 is not less than the combined thickness of the light source module 300 and the optical film set 400 .
  • the height of the light conversion element 500 can also be not less than the thickness of the light source module 300, as long as it can convert the bluish light from the light source module 300 due to insufficient light conversion efficiency into white light That's it.
  • the combined thickness of the light source module 300 and the optical film set 400 is approximately equal to the height of the light conversion element 500.
  • the height of the light conversion element 500 is the same as that of the side wall 220 have the same height and completely surround the light source module 300 and the optical film set 400 . In this way, no matter from the light source module 300 or the optical film set 400 , bluish light due to insufficient light conversion efficiency can be converted into white light by the light conversion element 500 at the corresponding position.
  • the thickness of the light conversion element 500 is adjusted according to the light L emitted by the light source 320 to achieve the best conversion effect.
  • the first bonding portion 240 is a plurality of grooves 241 on the side wall 220
  • the second bonding portion 410 of the optical film set 400 is a plurality of lugs 411
  • the lug 411 is correspondingly combined with the groove 241 for assembly and positioning with the optical film set 400 , as shown in FIG. 1 .
  • the light conversion element 500 is arranged on the side wall 220 around the optical film set 400 , so the light conversion element 500 is formed with at least one notch 510 corresponding to the groove 241 of the first joint part 240 , and the notches 510
  • the positions of the notches 510 correspond to the joint positions of the first joint part 240 and the second joint part 410 , that is, the positions of the notches 510 correspond to the joint positions of the groove 241 and the lug 411 .
  • the optical film set 400 accommodated in the accommodating space 230 is mutually limited by the first joint portion 240 on the side wall 220 and the second joint portion 410 of the optical film set 400 ,
  • the groove 241 on the side wall 220 and the lug 411 of the optical film set 400 form a concave-convex shape that cooperates with each other to complete the positioning of the optical film set 400 .
  • the light conversion element 500 of this embodiment is disposed on the side wall 220 , And there will be no scratching problem, so it has better bonding stability, and it is not easy to fall off and lead to the failure of the means of improving color shift.
  • the depth of the aforementioned groove 241 may be smaller than the width of the lug 411, so that the edge of the optical film set 400 will not abut against the light conversion element 500, which can further ensure that the light conversion element 500 is compatible with the light conversion element 500.
  • the optical film group 400 will not be scratched and fall off.
  • the first joint part 240 may also be two protrusions 242 extending upward from the plate body 210, and the second joint part 410 of the optical film set 400 is a pair of According to the perforations 412 of the protrusions 242 , the perforations 412 are correspondingly combined with the protrusions 242 to perform assembly and positioning of the optical film set 400 .
  • the light conversion element 500a is arranged on the side wall 220 because it surrounds the optical film group 400, so that the preparation steps of the light conversion element 500a can be simplified; or, the light conversion element 500a corresponds to the first joint portion
  • the position of the protrusion 242 of the 240 is formed with a notch 510a, and the position of the notch 510a corresponds to the position of the combination of the first joint part 240 and the second joint part 410, that is, the position of the notch 510a corresponds to the position of the protrusion 242 and the second joint part 410.
  • the optical film set 400 since the optical film set 400 is positioned relative to the plate body 210, there is preferably a gap between the optical film set 400 and the side wall 220, and it can also be more It is further ensured that the light converting element 500 and the optical film set 400 will not be scratched and fall off.
  • the light source module 300 includes a plurality of light sources 320 and encapsulant 330.
  • the encapsulant 330 covers the light sources 320 and forms a main light-emitting surface 331 and a light-emitting side 332.
  • the light-emitting side 332 faces The light conversion element 500 .
  • the optical film group in the backlight module of the light source module of this case can include a wavelength conversion film to convert the light emitted by the light source into white light; in another implementation For example, as shown in FIG.
  • the encapsulant 330 may include light conversion particles 333 for converting the light emitted by the light source into white light.
  • the encapsulant 330 for encapsulating the LED die should ideally be transparent, so that the light emitted from the LED die can fully penetrate and have high brightness.
  • Part of the light emitted by these light sources 320 is transmitted to the optical film set 400 through the main light-emitting surface 331, and the other part of light is emitted from the light-emitting side 332, so that the blue light conversion efficiency at the edge is low, and then around the display area. Blue light leakage or blue halo is generated, so the image of the liquid crystal display device has the problem of bluish edges.
  • the encapsulation glue 330 of the light source module 300 is fixed on the substrate 310, and the light conversion element 500 surrounds the periphery of the light source module 300 and the optical film set 400. More specifically, The light conversion element 500 is fixed on the side wall 220, so there will be no relative displacement between the light conversion element 500 and the light-emitting side 332 of the encapsulant 330 of the light source module 300, and the light conversion element 500 can directly receive
  • the blue light from the light-emitting side 332 is converted into white light
  • the light conversion member 500 extends from the junction of the side wall 220 and the board body 210 toward the top of the side wall 220 , or the light conversion member 500 extends from the board body 210 and the board body 210
  • the junction of the encapsulant 330 extends toward the main light-emitting surface 331, and the height of the light conversion element 500 is not less than the height of the light-emitting side 332 (as shown in FIG.
  • the height of the light conversion element 500 is approximately equal to The height of the light-emitting side 332 and the optical film group 400 (as shown in FIG. 5 ), in a preferred implementation, the height of the light conversion element 500 is equal to the height of the side wall 220, completely surrounding the light source module 300 and the optical film set 400. In this way, the light conversion element 500 can be converted into white light by the light emitted by the light source 320 from the light-emitting side 332 efficiently, and based on the light conversion element 500 being arranged on the side wall 220, the light conversion element 500 and Other components do not overlap or scratch, so it can ensure that the light conversion element 500 will not fall off due to scratches.
  • the light conversion element 500 when the light L emitted by the light source 320 is blue light, the light conversion element 500 is yellow ink, or the light conversion element 500 is yellow phosphor, which can be excited by blue light to emit white light, but not limited thereto, the light conversion element 500 converts the light L emitted from the edge into white light, thereby reducing the bluishness of the light leakage from the edge of the light source module 100 .
  • the positioning design of the groove 241 and the lug 411 as shown in FIG. 1 and the positioning design of the protrusion 242 and the perforation 412 as shown in FIG. , or the fixed setting of the encapsulant 330 relative to the light conversion element 500 as shown in FIG. Rubbing causes the problem of falling off.
  • FIG. 6 is a schematic diagram of a display device in an embodiment of the present case.
  • the aforementioned backlight module 100 is applied to a display device 700, including a display panel 600 and the aforementioned backlight module 100.
  • the display panel 600 is arranged above the optical film set 400, and the liquid crystal panel 600 is supported against the side wall 220.
  • the top surface, that is, the display panel 700 is disposed above the backlight module 100 .
  • the display device of this embodiment can be arranged on the side wall 220 by the light conversion element 500 in the aforementioned backlight module 100, wherein the frame of this embodiment can be a front frame, a plastic frame or a metal back plate, and the side wall 220 can be The side wall facing the light source 320 in the front frame, the plastic frame or the metal back plate is not limited thereto, so as to ensure that the light conversion element 500 still has better bonding stability after challenging tests or long-term use, The problem of falling off of the light converting element 500 is not easy to occur.
  • the backlight module of this application uses yellow ink or fluorescent powder to form light conversion parts on the side wall of the front frame, plastic frame or metal backplane.
  • the light When the light is emitted from the edge of the backlight module, the light that has not passed through the optical film group It will be converted by the light color complementary of the light conversion element located on the side wall.
  • the installation of light conversion parts can reduce the bluish phenomenon caused by light leakage at the edge of the backlight module; and the backlight module products can withstand the impact drop test, and the light conversion parts are not easy to fall off.
  • the display device can also effectively reduce the problem of bluish edges of displayed images.

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  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
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Abstract

一种背光模组（100）以及显示装置（700）。背光模组（100）包含：框架（200），框架（200）包含板体（210）以及设于板体（210）的周缘的侧墙（220），板体（210）与侧墙（220）形成容置空间（230）；光源模组（300），设于框架（200）的容置空间（230）中，光源模组（300）包含基板（310）以及设于基板（310）上的多个光源（320）；光学膜片组（400），设于光源模组（300）的上方，且位于容置空间（230）中；光转换件（500），设于侧墙（220）朝向光源（320）的一侧，光转换件（500）可受光源（320）所发出的光线转换成白光。显示装置（700）包含显示面板（600）以及背光模组（100）。光转换件（500）经得起冲击试验或长期使用，不易发生脱落的问题。

Description

背光模组及显示装置 技术领域
本申请涉及一种显示技术，且特别是涉及一种背光模组与具有此背光模组的显示装置。
背景技术
目前显示装置的设计趋势由以往的体积庞大、厚重的外型朝薄型化以及轻量化的方向发展，而且显示装置的边框宽度渐渐趋向窄边框的设计，使得显示装置整体的体积缩小且在相同尺寸的显示装置下所能看到的显示画面的面积更大，视觉效果更好。
其中，直下式背光模组是把多枚发光二极管排成数组，放在扩散板及液晶屏幕(Liquid-Crystal Display，LCD)后面，直接照射LCD。如此，直下式背光模组可以依从画面不同部分的亮度变化，快速地微调发光二极管的明暗，大为提高动态对比度达至最佳的水平。
在窄边框的设计的情况下，显示装置的边框未能再提供遮蔽非预期的光线的功能，因此背光模组在边框周围会产生漏光或光晕的现象。当使用蓝色发光二极管(Light Emitting Diode，LED)作为光源时，经由光学膜片组中的波长转换膜，将蓝光转换为白光，然而，由于波长转换膜在边缘处会因为荧光粉涂布厚度较薄或是封装的问题，使得边缘处的蓝光转换效率较低，进而在显示区周围则会产生蓝色漏光或蓝色光晕，因此液晶显示装置的影像上会有边缘蓝化的问题。
为了解决直下式背光模组蓝边的问题，目前的做法是将黄色油墨印于棱镜片下方，或印在其它光学膜片上，但因为光学膜片的表面为光滑面，油墨印在膜片上的产品经冲击落下试验后会有油墨脱落的情况产生，如此而在显示区周围还是容易产生蓝色漏光或蓝色光晕的问题。
发明内容
本申请的目的在于提供一种背光模组及显示装置，其用以改善周缘蓝色光晕的光转换件不易发生脱落。
为了达成上述目的，本申请提供一种背光模组，背光模组包括：框架，该框架包含侧墙，该侧墙框围出容置空间，该框架具有至少一第一结合部；光源模组，设于该容置空间中，该光源模组包含基板，以及多个设于该基板上的光源；光学膜片组，设于该光源模组的上方，且位于该容置空间中，其中该光学膜片组具有至少一第二结合部，第二结合部与相对应的所述第一结合部结合；光转换件，设于该侧墙朝向所述光源的一侧，该光转换件可受所述光源所发出光线转换成白光。
作为优选方式，该光转换件的高度不小于该光源模组的厚度。
作为优选方式，该光转换件的高度不小于该光源模组与该光学膜片组结合的厚度。
作为优选方式，该光源模组还包含封装胶，该封装胶包覆所述光源并形成主要发光面及发光侧面，所述发光侧面朝向该光转换件，该光转换件的高度不小于所述发光侧面的高度。
作为优选方式，该第一结合部为位于该侧墙上的多个凹槽，该光学膜片组的该第二结合部为多个凸耳，所述凸耳对应结合于所述凹槽。
作为优选方式，该框架还包含板体，该侧墙设于该板体的周缘处，该第一结合部为从该板体向上延伸的至少一凸柱，该光学膜片组的该第二结合部为至少一穿孔，所述穿孔对应结合于所述凸柱。
作为优选方式，该光转换件围绕该光学膜片组而布设于该侧墙上，且形成有至少一缺口，该缺口的位置对应该第一结合部与该第二结合部的结合位置。
作为优选方式，该光转换件与该光学膜片组之间具有间隙。
为达成上述目的，本申请提供一种显示装置，其结构包含：前述的背光模组，及液晶面板，该液晶面板设于该光学膜片组的上方，该液晶面板承靠在所述侧墙的顶面。
相较于先前技术，本申请的背光模组及显示装置的位于侧墙上的光转 换件，经得起冲击试验或长期使用，不易发生光转换件脱落的问题。
附图说明
图1为本案实施例的背光模组的示意图。
图2为本案实施例的背光模组的剖面示意图。
图3为本案另一实施例的背光模组的示意图。
图4本案光源模组具有封装胶的背光模组的剖面示意图一。
图5本案光源模组具有封装胶的背光模组的剖面示意图二。
图6为本案实施例中显示装置的示意图。
具体实施方式
现在，配合图式将本申请实施例详细说明如下，其所附附图主要为简化的示意图，仅以示意方式说明本申请的基本结构，因此在这些附图中仅标示与本申请有关的元件，且所显示的元件并非以实施时的数目、形状、尺寸比例等加以绘制，其实际实施时的规格尺寸实为一种选择性的设计，且其元件布局形态有可能更为复杂。
以下各实施例的说明是参考附加的附图，用以例示本申请可据以实施的特定实施例。本申请所提到的方向用语，例如「上」、「下」、「前」、「后」等，仅是参考附加附图的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。另外，在说明书中，除非明确地描述为相反的，否则词语“包括”将被理解为意指包括所述元件，但是不排除任何其它元件。
请参照图1及图2，为本申请背光模组的示意图及剖面示意图。背光模组100，该背光模组100包含：框架200、置于该框架200内的光源模组300、置于该光源模组300上的光学膜片组400、及设于该框架200朝向该光源模组300的一侧的光转换件500，该光转换件500与其他构件之间不重叠或者不会产生刮擦，故该光转换件500经得起冲击试验或长期使用，不易发生光转换件500脱落的问题。
该框架200包含板体210，及设于该板体210的周缘的侧墙220，该 板体210与该侧墙220形成容置空间230，且该框架200具有至少一第一结合部240。实施上，该框架200可以是前框、塑框或金属背板的一部分，所述侧墙220可以是前框、塑框或金属背板中朝向光源320的延伸所形成的侧边，并不以此为限。本实施例中的框架200为金属背板，所述侧墙220由金属背板的边缘向上延伸。
该光源模组300包含基板310，以及多个设于该基板310上的光源320，其中该基板310设于该板体210上；所述光源320为发光二极管(Light-Emitting Diode，LED)，但也可以是其它种类的发光元件。所述光源320可以是直接自一片晶圆切割出且未经封装的发光芯片，例如为发光二极管芯片，所述的发光二极管芯片例如是主波长发出蓝光的晶粒级氮化物发光二极管芯片，即适于提供蓝光光线，但不以此为限。
该光学膜片组400设于该光源模组300的上方，且位于该容置空间230中，其中该光学膜片组400具有至少一第二结合部410，该第二结合部410与相对应的该第一结合部240结合。本实施例的背光模组100为直下式的背光模组，该光学膜片组400可以包括扩散板、波长转换膜等光学膜片。
该光转换件500设于该侧墙220的内面，朝向所述光源320的一侧，且该光转换件500可受所述光源320所发出光线L转换成白光。实施应用上，当所述光源320所发出的光线L为蓝光时，则该光转换件500为黄色油墨，或该光转换件500为黄色荧光粉，可受蓝光激发而发白光，但不以此为限。因为该光学膜片组400位于该侧墙220框围出来的该容置空间230中，当该光转换件500设于该侧墙220的内面时，会让该光学膜片组400从边缘出射的光线L转换成白光，由此降低光源模组100边缘漏光的蓝化现象。相较于习知技术中，光学膜片组被侧墙承载而突出于容置空间以外，此种设计就不能让光学膜片组从边缘出射的光线转换成白光，仍容易产生边缘蓝化现象。
本实施例的背光模组100中，藉由将该光转换件500配置于该侧墙220内面与该光源模组300之间的表面，当所述光源320的光线L传递至背光模组100的边缘时，未经过该光学膜片组400的部分光线会被该光转 换件500光色互补转换。在光源320发出蓝光的情况下，该光转换件500的设置可以降低背光模组100边缘漏光所产生的蓝化现象。本实施例的光转换件500除了发挥解决色偏问题的目的之外，本实施例便是藉由光转换件500的位置改变，而能避免光转换件500(黄色油墨或黄色荧光粉)发生脱落而失效的问题。更详言之，本实施例背光模组100中的光转换件500位于该框架200的侧墙220上，该光转换件500不会与其他构件重叠或者不会产生刮擦，故该光转换件500表面不会因相对位移的摩擦而发生脱落。举例而言，位于该板体210上的光源模组300的基板310固定设置于该板体210的表面，例如以双面胶带贴附在该板体210与该基板310之间，如此，该光源模组300的基板310不会刮擦到该光转换件500的表面。
实施应用上，该光转换件500环绕该光源模组300与该光学膜片组400的周缘，该光转换件500的高度较佳地不小于该光源模组300的厚度，或者该光转换件500的高度不小于该光源模组300与该光学膜片组400结合的厚度。举例而言，该光转换件500的高度也可以是不小于该光源模组300的厚度，只要能够将来自该光源模组300中，因光线转换效率不足而导致偏蓝的光线，转换为白光即可。又，如图2所示，该光源模组300与该光学膜片组400结合的厚度约等于该光转换件500的高度，较佳实施应用上，该光转换件500的高度与该侧墙220的高度相等，完整环绕该光源模组300与该光学膜片组400。如此，不论是来自该光源模组300或该光学膜片组400中，因光线转换效率不足而导致偏蓝的光线，均可被对应位置的该光转换件500转换为白光。该光转换件500的厚度则依所述光源320所发出光线L进行调整，达到最佳的转换效果。
实施应用上，如图1所示，该第一结合部240为位于该侧墙220上的多个凹槽241，该光学膜片组400的该第二结合部410为多个凸耳411，所述凸耳411对应结合于所述凹槽241，进行具有该光学膜片组400的组装定位，如图1所示。另，该光转换件500围绕该光学膜片组400布设于该侧墙220上，所以该光转换件500对应该第一结合部240的凹槽241形成有至少一缺口510，该些缺口510的位置对应该第一结合部240与该第 二结合部410的结合位置，即该些缺口510的位置对应所述凹槽241与所述凸耳411的结合位置。换言之，容设于该容置空间230中的该光学膜片组400，藉由该侧墙220上的第一结合部240与该光学膜片组400的该第二结合部410互相限位，例如在侧墙220上的凹槽241，在光学膜片组400的凸耳411，两者形成互相配合的凹凸形状，即可完成该光学膜片组400的限位。相较于习知涂覆于光学膜片组上的油墨，容易因构件互相叠合而容易发生滑动所导致的表面刮擦，本实施例的该光转换件500设置于该侧墙220上，且不会发生刮擦问题，故具有较佳的结合稳定性，不易发生脱落而导致改善色偏的手段失效的问题。在一实施例中，前述凹槽241的深度可以小于凸耳411宽度，使该光学膜片组400的边缘不会抵靠在该光转换件500上，可更进一步确保该光转换件500与光学膜片组400之间不会发生刮擦而脱落。
请再参阅图3，在另一实施应用上，该第一结合部240也可以是该板体210向上延伸的两个凸柱242，该光学膜片组400的该第二结合部410为对应该些凸柱242的穿孔412，所述穿孔412对应结合于所述凸柱242，进行该光学膜片组400的组装定位。相同的，该光转换件500a因为围绕该光学膜片组400而布设于该侧墙220上，如此可简化该光转换件500a的制备步骤；或者，该光转换件500a对应该第一结合部240的凸柱242的位置形成有缺口510a，该缺口510a的位置对应该第一结合部240与该第二结合部410的结合位置，即该缺口510a的位置对应所述所述凸柱242与所述穿孔412的结合位置中通常具有其他机构，例如镜头，故光线并不会进入此处，因此不需设置光转换件500。在图3所示的实施例中，由于该光学膜片组400是相对于该板体210定位的，故该光学膜片组400与该侧墙220之间较佳地具有间隙，亦可更进一步确保该光转换件500与光学膜片组400之间不会发生刮擦而脱落。
请参阅图4及图5，示出本案光源模组具有封装胶的背光模组的剖面示意图。实施应用上，作为优选方式，该光源模组300包含多个光源320及封装胶330，该封装胶330包覆所述光源320并形成主要发光面331及发光侧面332，所述发光侧面332朝向该光转换件500。在一例子中，如 图5所示，本案光源模组具有封装胶的背光模组中的该光学膜片组可以包含波长转换膜，用以将光源所发出光线转换为白光；在另一实施例中，如图4所示，该封装胶330可以包含光转换粒子333，所述光转换粒子333用以将光源所发出光线转换为白光。用于封装发光二极管晶粒的封装胶330理想上应为透明，以使发光二极管晶粒所出射的光线可充分穿透而具有高亮度。这些光源320所发出的一部分光线由该主要发光面331传递至该光学膜片组400，另一部分光线由该发光侧面332射出，使得边缘处的蓝光转换效率较低，进而在显示区周围则会产生蓝色漏光或蓝色光晕，因此液晶显示装置的影像上会有边缘蓝化的问题。
本申请的实施应用上，该光源模组300的该封装胶330固定在该基板310上，该光转换件500环绕该光源模组300与该光学膜片组400的周缘，更详言之，该光转换件500固定在该侧墙220上，因此该光转换件500与该光源模组300的该封装胶330的发光侧面332之间不会产生相对位移，该光转换件500可直接接收来自发光侧面332的蓝光后转换成白光，该光转换件500从该侧墙220与该板体210的交界处朝向该侧墙220的顶端延伸，或者该光转换件500从该板体210与该封装胶330的交界处朝向该主要发光面331延伸，且该光转换件500的高度不小于所述发光侧面332的高度(如图4所示)；或者该光转换件500的高度约等于所述发光侧面332和该光学膜片组400的高度(如图5所示)，较佳实施应用上，该光转换件500的高度与该侧墙220的高度相等，完整环绕该光源模组300与该光学膜片组400。如此，该光转换件500可受所述光源320有效率地由该发光侧面332射出所发出光线转换成白光，且基于该光转换件500设置于该侧墙220上，该光转换件500与其他构件不重叠或者不会产生刮擦，故可确保该光转换件500不会发生刮擦而脱落。相同的，在实施应用上，当所述光源320所发出光线L为蓝光，则该光转换件500为黄色油墨，或该光转换件500为黄色荧光粉，可受蓝光激发而发白光者，但不以此为限，该光转换件500将边缘出射的光线L转换成白光，由此降低光源模组100边缘漏光的蓝化现象。
综上所述，如图1的凹槽241与凸耳411的定位设计，及如图3的凸 柱242与穿孔412的定位设计，使光转换件500与光学膜片组400之间具有间隙，或者如图4的封装胶330相对光转换件500的固定设置，都是为了要确保无任何构件会与光转换件500的表面发生相对位移，如此便可确保光转换件500不会发生刮擦而导致脱落的问题。
图6为本案实施例中显示装置的示意图。前述背光模组100应用于显示装置700，包含显示面板600及前述背光模组100，该显示面板600设于该光学膜片组400的上方，该液晶面板600承靠在所述侧墙220的顶面，即该显示面板700设于该背光模组100的上方。本实施例的显示装置可藉由前述背光模组100中的光转换件500设置于侧墙220，其中，本实施例的框架可以是前框、塑框或金属背板，侧墙220可以是前框、塑框或金属背板中朝向光源320的侧墙，并不以此为限，进而确保光转换件500在经挑战测试后或经长期使用后，仍具有较佳的结合稳定性，不易发生光转换件500脱落的问题。
本申请的背光模组利用黄色油墨或荧光粉形成光转换件于前框、塑框或金属背板的侧墙上，当光线由背光模组的边缘发出时，未经过光学膜片组的光线会被位于侧墙上的该光转换件光色互补转换。在光源发出蓝光的情况下，光转换件的设置可以降低背光模组边缘漏光所产生的蓝化现象；且背光模组产品更经得起冲击落下试验，不易有光转换件脱落的情况产生，显示装置也可以有效的降低显示影像的边缘蓝化的问题。
上述揭示的实施形态仅例示性说明本申请的原理、特点及其功效，并非用以限制本申请的可实施范畴，任何熟习此项技艺的人士均可在不违背本申请的精神及范畴下，对上述实施形态进行修饰与改变。任何运用本申请所揭示内容而完成的等效改变及修饰，均仍应为权利要求所涵盖。
附图标记说明
100：背光模组
200：框架
210：板体
220：侧墙
230：容置空间
240：第一结合部
241：凹槽
242：凸柱
300：光源模组
310：基板
320：光源
330：封装胶
331：主要发光面
332：发光侧面
333：光转换粒子
400：光学膜片组
410：第二结合部
411：凸耳
412：穿孔
500、500a：光转换件
510、510a：缺口
600：显示面板
700：显示装置
L：光线

Claims (9)

  1. 一种背光模组，包含：
    框架，包含侧墙，该侧墙框围出容置空间，该框架具有至少一第一结合部；
    光源模组，设于该容置空间中，该光源模组包含基板，以及多个设于该基板上的光源；
    光学膜片组，设于该光源模组的上方，且位于该容置空间中，其中该光学膜片组具有至少一第二结合部，该第二结合部与相对应的所述第一结合部结合；以及
    光转换件，设于该侧墙朝向所述光源的一侧，该光转换件可受所述光源所发出光线转换成白光。
  2. 如权利要求1所述的背光模组，其中，该光转换件的高度不小于该光源模组的厚度。
  3. 如权利要求1所述的背光模组，其中，该光转换件的高度不小于该光源模组与该光学膜片组结合的厚度。
  4. 如权利要求1所述的背光模组，其中，该光源模组还包含封装胶，该封装胶包覆所述光源并形成主要发光面及发光侧面，所述发光侧面朝向该光转换件，该光转换件的高度不小于所述发光侧面的高度。
  5. 如权利要求1所述的背光模组，其中，该第一结合部为位于该侧墙上的多个凹槽，该光学膜片组的该第二结合部为多个凸耳，所述凸耳对应结合于所述凹槽。
  6. 如权利要求1所述的背光模组，其中，该框架还包含板体，该侧墙设于该板体的周缘处，该第一结合部为从该板体向上延伸的至少一凸柱，该光学膜片组的该第二结合部为至少一穿孔，所述穿孔对应结合于所述凸柱。
  7. 如权利要求1所述的背光模组，其中，该光转换件围绕该光学膜片组而布设于该侧墙上，且形成有至少一缺口，该缺口的位置对应该第一结合部与该第二结合部的结合位置。
  8. 如权利要求1所述的背光模组，其中，该光转换件与该光学膜片组之间具有间隙。
  9. 一种显示装置，包含：
    如权利要求1至8中任意一项所述的背光模组；以及，
    液晶面板，该液晶面板设于该光学膜片组的上方，该液晶面板承靠在所述侧墙的顶面。
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Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200741315A (en) * 2006-04-28 2007-11-01 Innolux Display Corp Backlight module and fibricating method incorporating the same
TW201037421A (en) * 2009-04-09 2010-10-16 Wintek Corp Backlight module
CN101886773A (zh) * 2009-05-15 2010-11-17 友达光电(厦门)有限公司 背光模组、液晶显示装置及其组装方法
CN102033356A (zh) * 2009-09-24 2011-04-27 奇菱科技股份有限公司 液晶显示器及侧光式液晶显示器背光模块
CN103017043A (zh) * 2012-11-16 2013-04-03 友达光电股份有限公司 背光模块及使用其背光模块的显示装置
CN103791322A (zh) * 2013-10-29 2014-05-14 友达光电股份有限公司 背光模块与应用其的显示面板
CN204143136U (zh) * 2014-10-28 2015-02-04 河南城建学院 一种显示装置
KR20150102139A (ko) * 2014-02-27 2015-09-07 엘지디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 액정표시장치
CN105116611A (zh) * 2015-09-22 2015-12-02 广东普加福光电科技有限公司 一种配合量子点高色域光学膜应用的防漏光结构
CN105353557A (zh) * 2015-11-03 2016-02-24 纳晶科技股份有限公司 背光模组及显示装置
US20160161661A1 (en) * 2014-12-09 2016-06-09 Samsung Electronics Co., Ltd. Display device and backlight unit included therein
CN207164413U (zh) * 2017-08-23 2018-03-30 深圳创维－Rgb电子有限公司 一种背光模组、显示屏及显示装置
CN108563071A (zh) * 2018-03-06 2018-09-21 友达光电股份有限公司 显示面板
CN212905820U (zh) * 2020-08-10 2021-04-06 深圳市宝明科技股份有限公司 一种无胶框背光模组及具有其的显示装置
CN213545000U (zh) * 2020-08-31 2021-06-25 深圳市隆利科技股份有限公司 背光模组、显示模组及显示装置

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200741315A (en) * 2006-04-28 2007-11-01 Innolux Display Corp Backlight module and fibricating method incorporating the same
TW201037421A (en) * 2009-04-09 2010-10-16 Wintek Corp Backlight module
CN101886773A (zh) * 2009-05-15 2010-11-17 友达光电(厦门)有限公司 背光模组、液晶显示装置及其组装方法
CN102033356A (zh) * 2009-09-24 2011-04-27 奇菱科技股份有限公司 液晶显示器及侧光式液晶显示器背光模块
CN103017043A (zh) * 2012-11-16 2013-04-03 友达光电股份有限公司 背光模块及使用其背光模块的显示装置
CN103791322A (zh) * 2013-10-29 2014-05-14 友达光电股份有限公司 背光模块与应用其的显示面板
KR20150102139A (ko) * 2014-02-27 2015-09-07 엘지디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 액정표시장치
CN204143136U (zh) * 2014-10-28 2015-02-04 河南城建学院 一种显示装置
US20160161661A1 (en) * 2014-12-09 2016-06-09 Samsung Electronics Co., Ltd. Display device and backlight unit included therein
CN105116611A (zh) * 2015-09-22 2015-12-02 广东普加福光电科技有限公司 一种配合量子点高色域光学膜应用的防漏光结构
CN105353557A (zh) * 2015-11-03 2016-02-24 纳晶科技股份有限公司 背光模组及显示装置
CN207164413U (zh) * 2017-08-23 2018-03-30 深圳创维－Rgb电子有限公司 一种背光模组、显示屏及显示装置
CN108563071A (zh) * 2018-03-06 2018-09-21 友达光电股份有限公司 显示面板
CN212905820U (zh) * 2020-08-10 2021-04-06 深圳市宝明科技股份有限公司 一种无胶框背光模组及具有其的显示装置
CN213545000U (zh) * 2020-08-31 2021-06-25 深圳市隆利科技股份有限公司 背光模组、显示模组及显示装置

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