WO2023231505A1 - 背光模组及显示装置 - Google Patents

背光模组及显示装置 Download PDF

Info

Publication number
WO2023231505A1
WO2023231505A1 PCT/CN2023/081414 CN2023081414W WO2023231505A1 WO 2023231505 A1 WO2023231505 A1 WO 2023231505A1 CN 2023081414 W CN2023081414 W CN 2023081414W WO 2023231505 A1 WO2023231505 A1 WO 2023231505A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
lamp bead
backlight module
lens
lamp
Prior art date
Application number
PCT/CN2023/081414
Other languages
English (en)
French (fr)
Inventor
高伟
Original Assignee
惠州视维新技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 惠州视维新技术有限公司 filed Critical 惠州视维新技术有限公司
Publication of WO2023231505A1 publication Critical patent/WO2023231505A1/zh

Links

Classifications

    • 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
    • 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 invention relates to the field of display technology, and in particular to backlight modules and display devices.
  • Mini LED came into being, which inherits the advantages of high color gamut and high contrast of OLED. At the same time, it also has the advantages of long life, high reliability, thinness and lightness, and can be spliced for large-size displays.
  • Mini LED lamp beads are generally arranged in an array, with equal distances between adjacent lamp beads, and multiple lamp beads are connected through a circular lens.
  • the light emitted by the lamp beads mixes with each other.
  • such an arrangement requires more lamp beads, and a large-sized PCB board is required to place the lamp beads arranged in an array, resulting in an increase in the cost of the Mini LED backlight structure.
  • the main purpose of the present invention is to provide a backlight module and a display device to reduce the cost of Mini LED backlight.
  • the present invention provides a backlight module, which includes a plurality of groups of light bars arranged along a first direction, and the light bars include:
  • a plurality of lamp beads, the plurality of lamp beads are arranged sequentially on the PCB board along the second direction;
  • the lens module is arranged on the light exit side of the lamp bead and is used to diffuse the emitted light of the lamp bead.
  • the astigmatism ability of the lens module along the second direction is less than the
  • the lens module has astigmatism ability along the first direction, and the first direction intersects the second direction;
  • first spacing between two adjacent light bars, and a second spacing between two adjacent lamp beads on each light bar, and the first spacing is greater than the second spacing.
  • the PCB board is in a strip shape and the length direction of the PCB board is consistent with the second direction. In two adjacent light bars, a gap is formed between the PCB boards on both sides.
  • the first direction and the second direction are perpendicular to each other.
  • At least two adjacent lamp beads constitute a lamp bead group, and the number of the lens modules is multiple, and each of the The lens module corresponds to one lamp bead group, and each lens module covers the light exit side of each lamp bead under the corresponding lamp bead group.
  • the present application provides a backlight module, which includes a plurality of groups of light bars arranged along a first direction, and the light bars include:
  • a plurality of lamp beads, the plurality of lamp beads are arranged sequentially on the PCB board along the second direction;
  • a lens module which is disposed on the light emitting side of the lamp bead and diffuses the emitted light of the lamp bead.
  • the astigmatism ability of the lens module along the second direction is smaller than that of the lens module.
  • the set has astigmatism capability along the first direction, and the first direction intersects the second direction.
  • first spacing between two adjacent light bars, and a second spacing between two adjacent lamp beads on each light bar, and the first spacing is greater than the second spacing
  • the PCB board is in a long strip shape and the length direction of the PCB board is consistent with the second direction.
  • the two adjacent light bars one of the PCB boards on both sides is There is a gap between them.
  • the first direction and the second direction are perpendicular to each other.
  • At least two adjacent lamp beads form a lamp bead group
  • the lens module covers each lamp bead group under the same lamp bead group. Describe the light-emitting side of the lamp bead.
  • the one lamp bead group includes three lamp beads arranged in sequence along the second direction, and the three lamp beads diffuse light through the same lens module.
  • the light diffused by a lamp bead is in a rectangular shape, and the long side of the rectangle is arranged along the first direction, and the short side of the rectangle is arranged along the second direction.
  • the lens module includes a light-transmitting plate provided on the PCB board and a lens provided on the light-transmitting plate, and the light-transmitting plate covers the same lamp bead group.
  • the lens is located on the light exit side of each lamp bead, and one lens is provided corresponding to the light exit side of each lamp bead.
  • the lens adopts an ellipsoidal lens, and the thickness of the lens in the first direction is greater than the thickness in the second direction.
  • the backlight module further includes a driver IC, the driver IC is welded on the PCB board, and the driver IC is electrically connected to the lamp bead.
  • each lamp bead in the same lamp bead group, is electrically connected to the driving IC in parallel.
  • one driving IC is electrically connected to multiple groups of lamp beads.
  • the emitted light of a plurality of lamp beads arranged along the second direction is diffused through the lens module so that the light pattern of the emitted light is square.
  • a light-transmitting protective layer is provided between the lamp bead and the lens module, and the light-transmitting protective layer covers the light-emitting side of the lamp bead.
  • a support pillar and an optical film layer are included, and the support pillar is provided on the PCB board and used to support the optical film layer.
  • the angle at which the second direction intersects with the first direction is 90°.
  • the distance between adjacent light bars is greater than 40 mm.
  • the present application provides a display device, including the backlight module described in the first or second aspect.
  • the backlight module of the present application includes multiple groups of light bars arranged along a first direction.
  • Each light bar includes a PCB board and lamp beads arranged on it.
  • all lamp beads are arranged on the same PCB board.
  • the above solution can save the cost of the PCB board; by setting a lens module on the light exit side of the lamp bead, the emitted light of the lamp bead can be diffused; and by limiting the intersection of the first direction and the second direction, and the lens module is It is configured so that the astigmatism ability along the second direction is smaller than the astigmatism ability along the first direction, so that when the light emitted by the lamp bead is irradiated through the lens module onto the optical film layer at the same distance from the lamp bead, the light is emitted along the first direction.
  • the light spot length is greater than the light spot length along the second direction, so that the distance between the PCB boards of adjacent light bars can be set larger, thereby saving the amount of PCB boards and reducing costs; in addition, the lens module The use can satisfy the light mixing conditions while allowing the distance between adjacent lamp beads to be set larger, reducing the amount of lamp beads used in each light bar and further reducing costs.
  • Figure 1 is a schematic structural diagram of the arrangement of light bars in a backlight module according to an embodiment of the present application
  • Figure 2 is a schematic structural diagram of a backlight module in an embodiment of the present application.
  • Figure 3 is a schematic structural diagram of a light bar in which three lamp beads form a lamp bead group in an embodiment of the present application;
  • Figure 4 is a schematic side structural view of Figure 3.
  • An embodiment of the present application provides a display device. It can be understood that the display device is not limited to a display screen of a computer, a display screen of a television, a display screen of a mobile phone, etc.
  • the display device includes a backlight module.
  • the backlight module includes multiple groups of light bars 1 arranged along a first direction X.
  • Each light bar 1 includes: a PCB board 11; a plurality of lamp beads 121, the plurality of lamp beads 121 are sequentially arranged on the PCB board 11 along the second direction Y; a lens module 13, the lens module 13 is provided on the lamp beads.
  • the light exit side of 121 is used to diffuse the emitted light of the lamp bead 121; where the first direction X intersects the second direction Y, and the astigmatism ability of the lens module 13 along the second direction Y is smaller than that along the The astigmatism ability of the first direction X.
  • astigmatism ability refers to the ability to diffuse light. The stronger the astigmatism ability, the larger the angle of light diffusion. The weaker the astigmatism ability, the smaller the angle of light diffusion.
  • the solution provided by this embodiment mainly utilizes the different astigmatism capabilities of the lens module 13 in different directions.
  • the astigmatism capability of the lens module 13 along the first direction X is stronger than its astigmatism along the second direction Y. capability, so that the distance between adjacent light bars 1 (the first distance R) can be set larger than the distance between two adjacent lamp beads (the second distance R) among multiple lamp beads arranged along the second direction Y on the same light bar. distance S), thereby reducing the use of light strips and saving costs without affecting the light output.
  • the lens module 13 since the lens module 13 also has a certain astigmatism ability in the second direction Y, compared with the solution without the lens module 13, in order to achieve the same light mixing effect, it is necessary to add light along the second direction Y on the PCB board 11.
  • the number of lamp beads 121 provided can be reduced accordingly, further reducing costs.
  • the PCB boards 11 of different light bars 1 exist independently, and there is no PCB board connection between adjacent light bars 1 .
  • the PCB board 11 is in the shape of a long strip, and the length direction of the PCB board 11 is consistent with the second direction Y. That is to say, the plurality of lamp beads 121 in each light bar 1 are aligned along this direction.
  • the length directions of the PCB boards 11 of the light bar 1 are arranged in sequence. Therefore, the width of the PCB board 11 of each light bar 1 only needs to be able to install the lamp beads 121 without affecting the normal lighting of the lamp beads 121 .
  • the lamp beads 121 mentioned here are light-emitting chips.
  • the lens module 13 has different scattering capabilities along the first direction X and the second direction Y, the light emitted from a single lamp bead 121 passes through the lens module 13. A rectangular light spot appears on the optical film layer 16 .
  • each light bar 1 includes a plurality of lamp beads 121 sequentially arranged along the second direction Y, the overall light pattern emitted by each light bar 1 is square.
  • the backlight module includes a plurality of light bars arranged along the first direction X, the overall light pattern emitted by the backlight module is also square.
  • Area light control includes controlling whether the area emits light or not, as well as the intensity of the light emitted.
  • the angle between the first direction X and the second direction Y can be set according to specific conditions.
  • the angle between the first direction X and the second direction Y may be 45°.
  • the plurality of groups of light bars 1 are arranged in a diamond shape as a whole. Since the light emitted by the lamp beads 121 in each light bar 1 is still diffused along the first direction X and the second direction Y, the mixing of light between the multiple groups of light bars 1 will not be affected. And can adapt to different shapes of backlight modules.
  • the angle at which the second direction Y intersects with the first direction X is 90°, that is, the first direction It is rectangular, suitable for the shape of most backlight modules, and the light emitted by the multiple sets of light bars 1 as a whole is also square.
  • the setting of the first direction X and the second direction Y perpendicular to each other is more in line with the needs of most current display screens, and when making the arrangement, it is easier than setting other angles.
  • multiple light bars 1 can be controlled independently. By individually controlling different light bars 1, it is possible to control the on and off conditions or the outgoing light intensity of the display area corresponding to each light bar 1.
  • the plurality of lamp beads 121 in each light bar 1 can also be arranged in groups.
  • at least two lamp beads 121 arranged sequentially along the second direction Y in one light bar 1 constitute a lamp bead group 12 .
  • Each lamp bead group 12 is provided with a corresponding lens module 13 , that is, the light emitted by the lamp beads 121 in each lamp bead group 12 is diffused through the same lens module 13 .
  • Such an arrangement is beneficial to reducing the number of lens modules 13 and saving costs.
  • installation costs and installation steps can be reduced, thereby saving production time.
  • one lamp bead group 12 may include three lamp beads 121 arranged in sequence along the second direction Y.
  • the three lamp beads 121 in the same lamp bead group 12 diffuse light through the same lens module 13 corresponding to the lamp bead group 12 .
  • the light diffused by a single lamp bead 121 is in a rectangular shape, and the long side of the rectangle is arranged along the first direction X, and the short side of the rectangle is arranged along the second direction Y.
  • the lens module 13 may include a light-transmitting plate 131 provided on the PCB board 11 and a lens 132 provided on the light-transmitting plate 131 .
  • the number of light-transmitting plates 131 in each lens module 13 is 1, and the number of lenses 132 corresponds to the number of lamp beads 121 included in the lamp bead group 12 provided corresponding to the lens module 13 .
  • the light-transmitting plate 131 mainly serves to connect multiple lenses 132 , and the light-transmitting plate 131 can be installed on the PCB board 11 by welding.
  • the light-transmitting plate 131 and multiple lenses 132 can be integrally formed, thereby reducing the installation difficulty 13 of a single lens module 13 .
  • the light-transmitting plate 131 covers the light emitting side of the lamp bead group 12 so that the light emitted by the lamp beads 121 can pass through the light-transmitting plate 131 .
  • the light-transmitting plate 131 can be made of glass and has a thin thickness to reduce its refraction effect on light.
  • the lens 132 on the light-transmitting plate 131 is located on the light-emitting side of the lamp bead 121, and a lens 132 is provided corresponding to the light-emitting side of one lamp bead 121 to ensure that the emitted light of each lamp bead 121 in the lamp bead group 12 is Can be diffused by lens 132.
  • the ability to diffuse light in different directions is different. It should be noted that the ability to diffuse light in different directions can be changed by configuring the external structure and the internal structure of the lens 132 . To put it simply, the internal shape and external shape of the lens 132 are changed, and a secondary optical design is used to change the angle of light when it exits the outside of the lens 132 .
  • the structure for changing the light exit angle of the lens 132 belongs to the prior art.
  • the other is the ellipsoidal lens 132, because the first direction X and the second direction Y are perpendicular to each other in this embodiment.
  • the lens 132 used may be an ellipsoidal lens 132.
  • the emitted light of a single lamp bead 121 can be emitted to the optical film layer 16. Rectangular, and the spot length in the second direction Y on the optical film layer 16 is greater than the spot length in the first direction X.
  • the ability of a lens to diffuse light is related to the thickness of the lens.
  • the lens is an ellipsoidal lens, and the thickness of the lens in the X direction is greater than the thickness in the Y direction, so that the light passes through the ellipsoidal lens. Being diffused, the distance diffused along the X direction is greater than the distance diffused along the Y direction.
  • lenses 132 there are many other shapes and structures of lenses 132 in the prior art, which can be selected according to actual needs. For example, if the angle between the first direction X and the second direction Y is 45° or other angles, the corresponding shape needs to be The lens 132 diffuses light to meet the required light diffusion capabilities in the first direction X and the second direction Y.
  • the backlight module also includes a driver IC (not shown in the figure).
  • the driver IC is welded on the PCB board 11 and is electrically connected to the lamp beads 121 .
  • each lamp bead 121 is electrically connected to a driving IC in parallel or in series, and the driving IC controls the on and off of the lamp beads 121 in the lamp bead group 12 .
  • One driver IC can control the power on and off of all the lamp beads 121 in a lamp bead group 12. For multiple groups of lamp strips 1 or multiple groups of lamp bead groups 12 in one lamp strip 1, it is easy to realize partition control.
  • the series or parallel connection method can be selected according to the actual situation. If connected in series, the lamp beads 121 in one lamp bead group 12 can be turned off and on at the same time; if connected in parallel, the lamp beads 121 in one lamp bead group 12 can be turned on and off individually.
  • one driver IC can also be electrically connected to multiple lamp bead groups 12 to realize one driver IC controlling the work of multiple lamp bead groups 12 .
  • the backlight module further includes a plurality of support pillars 15 and an optical film layer 16 .
  • the support column 15 is arranged on the PCB board 11, and its fixation method can be welding.
  • the optical film layer 16 is disposed on the support column 15 .
  • the optical film layer 16 is supported by a plurality of support pillars 15 so that the optical film layer 16 is located on the light exit side of the light bar 1 .
  • the optical film layer 16 mainly includes a reflective sheet, a diffusion sheet, a diffusion plate, a quantum dot film, a prism sheet and a liquid crystal screen.
  • the specific structure of the optical film layer 16 belongs to the prior art and will not be described in detail here.
  • a light-transmitting protective layer 14 may be provided between the lamp bead 121 and the lens module 13 .
  • the light-transmitting protective layer 14 covers the light-emitting side of the lamp bead 121 and plays a certain protective role for the lamp bead 121 to prevent the surface of the lamp bead 121 from being damaged or being contaminated with excessive dust and impurities, which may affect the optical effect.
  • the light-transmitting protective layer 14 can be any soft material with good light-transmitting effect. Glue is used in this embodiment, which not only has good light-transmitting properties, but also can provide certain sealing protection for the lamp beads 121 .
  • the distance between adjacent light bars 1 is greater than 40 mm.
  • the present application also provides a display device, which includes a main body and the backlight module described above.
  • the main body is fixedly connected to the backlight module, and the light exit side of the backlight module faces the light entrance side of the main body.
  • the main body includes a diffuser sheet, a light-enhancing sheet and an LCD screen.
  • the diffuser sheet, light-enhancing sheet and LCD screen are stacked in sequence.
  • the light-emitting side of the backlight module is set toward the direction of the LCD screen to provide a light source for the main body.
  • this application uses specific words to describe the embodiments of the application.
  • “one embodiment”, “an embodiment”, and/or “some embodiments” means a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that “one embodiment” or “an embodiment” or “an alternative embodiment” mentioned twice or more at different places in this specification does not necessarily refer to the same embodiment. .
  • certain features, structures or characteristics in one or more embodiments of the present application may be appropriately combined.
  • numbers are used to describe the quantities of components and properties. It should be understood that such numbers used to describe the embodiments are modified by the modifiers "about”, “approximately” or “substantially” in some examples. Grooming. Unless otherwise stated, “about,” “approximately,” or “substantially” indicates that a number is allowed to vary by ⁇ %. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending on the desired features of the individual embodiment. In some embodiments, numerical parameters should account for the specified number of significant digits and use general digit preservation methods. Although the numerical fields and parameters used to confirm the breadth of the ranges in some embodiments of the present application are approximations, in specific embodiments, such numerical values are set as accurately as feasible.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种背光模组及显示装置，涉及显示技术领域。背光模组包括多组沿第一方向排列的灯条（1），灯条（1）包括：PCB板（11）；多个灯珠（12），沿第二方向依次排列于PCB板（11）上；透镜模组（13），设于灯珠（12）的出光侧并使灯珠（12）的出射光被扩散；其中，第一方向与第二方向相交，且透镜模组（13）沿第二方向具有的散光能力小于透镜模组（13）沿第一方向具有的散光能力。

Description

背光模组及显示装置
本申请要求于2022年6月2日在中国专利局提交的、申请号为202221386006.3、申请名称为“背光模组及显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及显示技术领域，尤其涉及背光模组及显示装置。
 背景技术
随着显示面板技术的发展，人们对于更轻、更薄、更大的柔性显示屏的追求日益强烈。传统的TFT-LCD采用玻璃衬底以及固定曲率的刚性背光结构，因此其不能满足柔性显示。而OLED由于是自发光器件，本身没有液晶，因此实现柔性显示比较容易，但是OLED具有寿命短、可靠性差和成本高的缺点，其难以实现大尺寸的柔性显示。
因此，Mini LED应运而生，其继承了OLED的高色域和高对比度的优点，同时，还具有寿命长，可靠性高，轻薄，可拼接用于大尺寸显示等优点。
 技术问题
目前，Mini LED由于其灯珠光强较为集中，为达到较好的混光效果，一般是将多个灯珠呈阵列排布，相邻灯珠之间距离相等，并通过圆形透镜使多个灯珠发出的光彼此混合。然而，如此设置需要较多的灯珠，且需要使用大尺寸的PCB板来放置阵列排布的灯珠，导致Mini LED背光结构的成本升高。
 技术解决方案
为改善现有技术的缺陷，本发明主要目的在于提供背光模组及显示装置，用以降低Mini LED的背光成本。
为实现上述目的，第一方面，本发明提供一种背光模组，其中，包括多组沿第一方向排列的灯条，所述灯条包括：
PCB板；
多个灯珠，多个所述灯珠沿第二方向依次排列于所述PCB板上；
透镜模组，所述透镜模组设于所述灯珠的出光侧，用于对所述灯珠的出射光进行扩散，所述透镜模组沿所述第二方向具有的散光能力小于所述透镜模组沿所述第一方向具有的散光能力，且所述第一方向与所述第二方向相交；
相邻两个所述灯条之间具有第一间距，每一灯条上相邻两个所述灯珠之间具有第二间距，所述第一间距大于所述第二间距。
所述PCB板呈长条状且所述PCB板的长度方向与所述第二方向一致，相邻两所述灯条中，两侧的所述PCB板之间形成有间距。
在本申请的部分实施例中，所述第一方向与所述第二方向彼此垂直。
在本申请的部分实施例中，在每一所述灯条上，至少两个彼此相邻的所述灯珠构成一个灯珠组，所述透镜模组的数量为多个，每一所述透镜模组与一个所述灯珠组对应，且每一所述透镜模组覆盖与之对应的所述灯珠组下各所述灯珠的出光侧。
第二方面，本申请提供了一种背光模组，其中，包括多组沿第一方向排列的灯条，所述灯条包括：
PCB板；
多个灯珠，多个所述灯珠沿第二方向依次排列于所述PCB板上；
透镜模组，所述透镜模组设于所述灯珠的出光侧并使所述灯珠的出射光被扩散，所述透镜模组沿所述第二方向具有的散光能力小于所述透镜模组沿所述第一方向具有的散光能力，且所述第一方向与所述第二方向相交。
在本申请的部分实施例中，相邻两个所述灯条之间具有第一间距，每一灯条上相邻两个所述灯珠之间具有第二间距，所述第一间距大于所述第二间距。
在本申请的部分实施例中，所述PCB板呈长条状且所述PCB板的长度方向与所述第二方向一致，相邻两所述灯条中，两侧的所述PCB板之间形成有间距。
在本申请的部分实施例中，所述第一方向与所述第二方向彼此垂直。
在本申请的部分实施例中，在每一所述灯条上，至少两个彼此相邻的所述灯珠构成一个灯珠组，所述透镜模组覆盖同一所述灯珠组下各所述灯珠的出光侧。
在本申请的部分实施例中，所述一个灯珠组内包含有三个沿所述第二方向依次排列的灯珠，三个灯珠分别通过同一个所述透镜模组进行光的扩散，单独一个灯珠所扩散出的光呈长方形，且所述长方形的长边为沿所述第一方向设置，所述长方形的短边为沿所述第二方向设置。
在本申请的部分实施例中，所述透镜模组包括设于所述PCB板上的透光板和设于所述透光板上的透镜，所述透光板覆盖同一所述灯珠组下各所述灯珠的出光侧，所述透镜位于所述灯珠的出光侧且每一所述灯珠的出光侧对应设有一个所述透镜。
在本申请的部分实施例中，所述透镜采用椭球形透镜，所述透镜在所述第一方向上的厚度大于在所述第二方向上的厚度。
在本申请的部分实施例中，所述背光模组还包括驱动IC，所述驱动IC焊接在所述PCB板上，所述驱动IC与所述灯珠电性连接。
在本申请的部分实施例中，在同一所述灯珠组中，各灯珠并联地与驱动IC电性连接。
在本申请的部分实施例中，一个所述驱动IC与多组所述灯珠组电性连接。
在本申请的部分实施例中，多个沿所述第二方向排列的所述灯珠的出射光通过所述透镜模组被扩散以使所述出射光的光型呈方形。
在本申请的部分实施例中，所述灯珠与所述透镜模组之间设有透光保护层，且所述透光保护层覆盖于所述灯珠的出光侧。
在本申请的部分实施例中，包括支撑柱以及光学膜层，所述支撑柱设于所述PCB板上并用于支撑所述光学膜层。
在本申请的部分实施例中，所述第二方向与所述第一方向相交的角度为90°。
在本申请的部分实施例中，沿所述第一方向排列的所述灯条中，相邻所述灯条之间的间距大于40mm。
第三方面，本申请提供了一种显示装置，包括如第一方面或者第二方面所述的背光模组。
 有益效果
本申请的背光模组包括多组沿第一方向排列的灯条，每一灯条包括PCB板及设置其上的灯珠，相较于现有技术中将所有灯珠设置在同一块PCB板上的方案，可以节省PCB板的成本；通过在灯珠的出光侧设置透镜模组，可以对灯珠的出射光进行扩散；而通过限定第一方向与第二方向相交，且透镜模组被配置成沿第二方向具有的散光能力小于沿第一方向具有的散光能力，使得灯珠发出的光，在经透镜模组照射到距离灯珠同等距离的光学膜层上时，沿第一方向的光斑长度大于沿第二方向的光斑长度，由此可以将相邻灯条的PCB板之间的距离设置得更大，从而节省PCB板的用量，降低成本；除此以外，透镜模组的使用可在满足混光条件的同时，使得相邻灯珠之间的距离可以设置得更大，减少每个灯条中灯珠的用量，进一步降低成本。
 附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例的附图作简单介绍，显而易见地，下面描述中的附图仅仅涉及本申请的一些实施例，而非对本申请的限制，其中：
图1为本申请一实施例中背光模组中的灯条的排列方式的结构示意图；
图2为本申请一实施例中背光模组的结构示意图；
图3为本申请一实施例中三个灯珠为一组灯珠组的灯条结构示意图；
图4为图3的侧视结构示意图。
附图标记说明：
1-灯条；11-PCB板；12-灯珠组；121-灯珠；13-透镜模组；131-透光板；132-透镜；14-透光保护层；15-支撑柱；16-光学膜层；
X-第一方向；Y-第二方向；R-第一混光距离；S-第二混光距离。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下获得的所有其他实施例，都属于本申请保护的范围。
在本申请中，“示例性”一词用来表示“用作例子、例证或说明”。本申请中被描述为示例性”的任何实施例不一定被解释为比其他实施例更优选或更具优势。为使本领域任何技术人员能够实现和使用本申请，给出了以下描述。在以下描述，为了解释的目的而列出了细节。应当明白的是，本领域普通技术人员可以认识到，在不使用这些特定细节的情况下也可以实现本申请。在其他实例中，不会对已知的结构和过程进行详细阐述，以避免不必要的细节使本申请的描述变得晦涩。因此，本申请并非旨在限于所示的实施例，而是与符合本申请所公开的原理的最广范围相一致。
本申请实施例提供一种显示装置。可以理解，显示装置不限于为电脑的显示屏幕、电视的显示屏幕或手机的显示屏幕等。
请参见图1，显示装置包括背光模组。该背光模组包括多组沿第一方向X排列的灯条1。每一灯条1均包括：PCB板11；多个灯珠121，多个灯珠121沿第二方向Y依次排列于PCB板11上；透镜模组13，该透镜模组13设于灯珠121的出光侧，用于对灯珠121的出射光进行扩散；其中，第一方向X与第二方向Y相交，且透镜模组13沿第二方向Y具有的散光能力小于透镜模组13沿第一方向X具有的散光能力。
需要说明的是，散光能力是指对光进行扩散的能力，散光能力越强，光扩散的角度越大，散光能力越弱，光扩散的角度越小。
本实施例所提供的方案，主要是利用透镜模组13在不同方向上的散光能力不同，具体地，利用透镜模组13沿第一方向X的散光能力强于其沿第二方向Y的散光能力，使得相邻灯条1之间的距离（第一距离R）可以设置得大于同一灯条上沿第二方向Y排列的多个灯珠中两相邻灯珠之间的距离（第二距离S），由此，在不影响出光的情况下，减小灯条的使用，节省成本。同时，由于透镜模组13在第二方向Y上也具有一定的散光能力，较之未设置透镜模组13的方案，为达到同等混光效果，在PCB板11上沿第二方向Y所需设置的灯珠121数量可以相应减少，进一步降低成本。
本实施例中，不同灯条1所具有的PCB板11独立存在，相邻灯条1之间没有PCB板连接。每一灯条1中，PCB板11均呈长条状，且PCB板11的长度方向均与第二方向Y一致，也就是说，每一灯条1内的多个灯珠121均沿该灯条1所具有的PCB板11的长度方向依次排列。因此，每一灯条1所具有的PCB板11的宽度只需要能够安装灯珠121且不会影响灯珠121正常发光即可。这里所说的灯珠121即为发光晶片。
请参见图1，本实施例所提供的方案中，由于透镜模组13沿第一方向X和第二方向Y具有不同的散射能力，因此，单个灯珠121出射的光经透镜模组13后在光学膜层16上呈现长方形的光斑。又由于每一灯条1包括多个沿第二方向Y依次排列灯珠121，因此，每个灯条1整体出射的光型均呈方形。进一步地，由于背光模组包括多个沿第一方向X排列的灯条，因此，背光模组整体出射的光型也呈方形。通过使单个灯珠121经透镜模组13出射的光的形状呈方形，有利于使背光模组发出的光更加均匀，
还有利于实现区域控光。区域控光包括对区域出光与否以及出光强度等的控制。
需要说明的是，第一方向X与第二方向Y的夹角可以根据具体情况设定。例如，第一方向X与第二方向Y的夹角可以为45°，此时，多组灯条1整体呈菱形设置。而由于每个灯条1中的灯珠121所出射的光，仍是沿第一方向X和第二方向Y进行扩散，因此，不会影响到多组灯条1之间的光的混合，且可以适应不同形状的背光模组。在本实施例中，第二方向Y与第一方向X相交的角度为90°，即第一方向X与第二方向Y彼此垂直，多组沿第一方向X依次排列的灯条1整体呈矩形，适合大多数背光模组的形状，且多组灯条1整体所出射的光也呈方形。第一方向X与第二方向Y彼此垂直的设置更为符合目前大多数显示屏幕的需求，且在制作排列时，相较于其他夹角的设置也更加容易。
请参见图3和图4，在本实施例所提供的方案中，为了使采用上述背光模组的显示装置的不同显示区域可以具有不同的亮灭情况，或者，不同显示区域可以呈现不同的光强，多个灯珠121可以分组设置。
具体而言，由于多个灯条1之间均采用独立的PCB板11，因此，多个灯条1之间可独立控制。通过通过对不同灯条1进行单独控制，便可以实现对各灯条1所对应的显示区域的亮灭情况或出射光强进行控制。
进一步地，对于每个灯条1内的多个灯珠121而言，多个灯珠121也可以分组设置。本实施例中，对于一个灯条1内，沿第二方向Y依次排列的至少两个灯珠121构成为一个灯珠组12。每个灯珠组12对应设置一个透镜模组13，即，每一灯珠组12内的灯珠121所发出的光通过同一个透镜模组13进行扩散。如此设置，有利于减少透镜模组13的数量，节省成本。而且，由于无需在每个灯珠121上分别单独安装一个透镜132，可以减少安装成本以及安装步骤，从而节省生产时间。对于本实施例，一个灯珠组12内可以包含有三个沿第二方向Y依次排列的灯珠121。同一灯珠组12内的三个灯珠121通过与该灯珠组12对应的同一个透镜模组13进行光的扩散。单独一个灯珠121所扩散出的光呈长方形，且长方形的长边为沿第一方向X设置，长方形的短边为沿第二方向Y设置。
进一步地，透镜模组13可以包括设于PCB板11上的透光板131和设于透光板131上的透镜132。
一实施例中，每一透镜模组13中，透光板131的数量为1，透镜132的数量和与透镜模组13对应设置的灯珠组12中所包含的灯珠121的数量对应。透光板131主要起到连接多个透镜132的作用，且透光板131可以采用焊接的方式安装在PCB板11上。示例性地，透光板131与多个透镜132可以一体成型，由此，降低单个透镜模组13的安装难度13。
透光板131覆盖在灯珠组12的出光侧，使灯珠121出射的光能够透过透光板131。该透光板131可以是玻璃材质，且厚度较薄，降低其对光线的折射影响。
对于透光板131上的透镜132，其位于灯珠121的出光侧，且一个灯珠121的出光侧对应设有一个透镜132，保证灯珠组12内的每个灯珠121的出射光都能被透镜132扩散。
进一步地，对于透镜132，在不同方向上扩散光的能力不同。需要说明的是，可以通过对透镜132的外部结构以及内部结构进行设置，以达到改变不同方向上扩散光的能力。简单来说，即是改变透镜132内部形状以及外部形状，利用二次光学设计，使光在出射至透镜132外部时的角度发生改变。对于透镜132实现光出射角度改变的结构属于现有技术。目前，常用的透镜132通常为两种，一种是球形透镜132，基本在大尺寸PCB板11上进行阵列排布的灯珠121即是用球形透镜132，在各个方向对光扩散的能力都相差不多，甚至相同，满足阵列排布灯珠121之间的混光要求；另一种是椭球形透镜132，因为本实施例中第一方向X与第二方向Y彼此垂直，本实施例中所采用的透镜132可以是椭球形透镜132，利用椭球形透镜132在彼此垂直的两个方向上的扩散光的能力的不同，实现单个灯珠121的出射光出射至光学膜层16上时呈长方形，且光学膜层16上第二方向Y上的光斑长度大于第一方向X上的光斑长度。透镜扩散光的能力的大小和透镜的厚度有关，本实施例中，透镜采用椭球形透镜，且该透镜在X方向上的厚度大于在Y方向上的厚度，使得光线在通过该椭球形透镜后被扩散，沿X方向扩散的距离大于沿Y方向扩散的距离。当然，现有技术中还存在许多其他形状结构的透镜132，根据实际需要选择即可，比如若第一方向X与第二方向Y之间的夹角为45°或其他角度，则需要对应形状的透镜132进行光的扩散以满足第一方向X和第二方向Y上所需的对光的扩散能力。
本实施例所提供的方案中，该背光模组还包括驱动IC（图中未视出），驱动IC焊接在PCB板11上，并与灯珠121电性连接。具体而言，在同一灯珠组12中，各灯珠121并联或者串联地与驱动IC电性连接，通过驱动IC控制灯珠组12中的灯珠121的通断电。通过一个驱动IC即可达到控制一个灯珠组12内所有灯珠121的通断电，对于多组灯条1或者一个灯条1内的多组灯珠组12而言，便于实现分区控制。对于前述所说的各灯珠121串联或者并联且与驱动IC电性连接，串联或者并联的连接方式根据实际情况进行选择即可。若为串联，则一个灯珠组12内的灯珠121实现同关同开；若为并联，则一个灯珠组12内的灯珠121可实现单独开和关。
还需要说明的是，根据实际需要，也可以将一个驱动IC与多组灯珠组12电性连接，以实现一个驱动IC控制多组灯珠组12的工作。
请参见图2，本实施例所提供的方案中，该背光模组还包括多个支撑柱15以及光学膜层16。支撑柱15设置在PCB板11上，其固定方式可以采用焊接。而光学膜层16则设置于支撑柱15上。通过多个支撑柱15将光学膜层16支撑起来，并使得光学膜层16位于灯条1的出光侧。对于光学膜层16，其主要包括反射片、扩散片、扩散板、量子点膜、棱镜片以及液晶屏，对于光学膜层16具体结构的设置属于现有技术，在此不做过多赘述。
进一步地，在灯珠121与透镜模组13之间还可以设有透光保护层14。透光保护层14覆盖在灯珠121的出光侧，对灯珠121起到一定的保护作用，避免灯珠121表面因遭到破坏或积染过多灰尘杂质等而影响光学效果。透光保护层14可以是任意一种透光效果良好的软性材质。本实施例中采用的是胶水，既具有良好的透光属性，又能够对灯珠121起到一定的密封保护。
需要说明的是，对于本实施例中，相邻灯条1之间的间距大于40mm。
基于同一发明构思本申请还提供一种显示装置，该显示装置包括主体和前文中所述的背光模组。主体与背光模组固定连接，背光模组的出光侧朝向主体的入光侧。其中，主体包括扩散片、增光片以及液晶屏幕，扩散片、增光片以及液晶屏幕依次叠放设置，背光模组的出光侧则朝向液晶屏幕的方向设置，为主体提供光源。
上文已对基本概念做了描述，显然，对于本领域技术人员来说，上述详细披露仅仅作为示例，而并不构成对本申请的限定。虽然此处并没有明确说明，本领域技术人员可能会对本申请进行各种修改、改进和修正。该类修改、改进和修正在本申请中被建议，所以该类修改、改进、修正仍属于本申请示范实施例的精神和范围。
同时，本申请使用了特定词语来描述本申请的实施例。如“一个实施例”、“一实施例”、和/或“一些实施例”意指与本申请至少一个实施例相关的某一特征、结构或特点。因此，应强调并注意的是，本说明书中在不同位置两次或多次提及的“一实施例”或“一个实施例”或“一个替代性实施例”并不一定是指同一实施例。此外，本申请的一个或多个实施例中的某些特征、结构或特点可以进行适当的组合。
同理，应当注意的是，为了简化本申请披露的表述，从而帮助对一个或多个申请实施例的理解，前文对本申请实施例的描述中，有时会将多种特征归并至一个实施例、附图或对其的描述中。但是，这种披露方法并不意味着本申请对象所需要的特征比权利要求中提及的特征多。实际上，实施例的特征要少于上述披露的单个实施例的全部特征。
一些实施例中使用了描述成分、属性数量的数字，应当理解的是，此类用于实施例描述的数字，在一些示例中使用了修饰词“大约”、“近似”或“大体上”来修饰。除非另外说明，“大约”、“近似”或“大体上”表明数字允许有±%的变化。相应地，在一些实施例中，说明书和权利要求中使用的数值参数均为近似值，该近似值根据个别实施例所需特点可以发生改变。在一些实施例中，数值参数应考虑规定的有效数位并采用一般位数保留的方法。尽管本申请一些实施例中用于确认其范围广度的数值域和参数为近似值，在具体实施例中，此类数值的设定在可行范围内尽可能精确。
针对本申请引用的每个专利、专利申请、专利申请公开物和其他材料，如文章、书籍、说明书、出版物、文档等，特此将其全部内容并入本申请作为参考，但与本申请内容不一致或产生冲突的申请历史文件除外，对本申请权利要求最广范围有限制的文件（当前或之后附加于本申请中的）也除外。需要说明的是，如果本申请附属材料中的描述、定义、和/或术语的使用与本申请内容有不一致或冲突的地方，以本申请的描述、定义和/或术语的使用为准。
以上对本发明实施例所提供的背光模组显示装置进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种背光模组，其中，包括多组沿第一方向排列的灯条，所述灯条包括：
    PCB板；
    多个灯珠，多个所述灯珠沿第二方向依次排列于所述PCB板上；
    透镜模组，所述透镜模组设于所述灯珠的出光侧，用于对所述灯珠的出射光进行扩散，所述透镜模组沿所述第二方向具有的散光能力小于所述透镜模组沿所述第一方向具有的散光能力，且所述第一方向与所述第二方向相交；
    相邻两个所述灯条之间具有第一间距，每一灯条上相邻两个所述灯珠之间具有第二间距，所述第一间距大于所述第二间距。
    所述PCB板呈长条状且所述PCB板的长度方向与所述第二方向一致，相邻两所述灯条中，两侧的所述PCB板之间形成有间距。
  2. 如权利要求1所述的背光模组，其中，所述第一方向与所述第二方向彼此垂直。
  3. 如权利要求1所述的背光模组，其中，在每一所述灯条上，至少两个彼此相邻的所述灯珠构成一个灯珠组，所述透镜模组的数量为多个，每一所述透镜模组与一个所述灯珠组对应，且每一所述透镜模组覆盖与之对应的所述灯珠组下各所述灯珠的出光侧。
  4. 一种背光模组，其中，包括多组沿第一方向排列的灯条，所述灯条包括：
    PCB板；
    多个灯珠，多个所述灯珠沿第二方向依次排列于所述PCB板上；
    透镜模组，所述透镜模组设于所述灯珠的出光侧并使所述灯珠的出射光被扩散，所述透镜模组沿所述第二方向具有的散光能力小于所述透镜模组沿所述第一方向具有的散光能力，且所述第一方向与所述第二方向相交。
  5. 如权利要求1所述背光模组，其中，相邻两个所述灯条之间具有第一间距，每一灯条上相邻两个所述灯珠之间具有第二间距，所述第一间距大于所述第二间距。
  6. 如权利要求1所述背光模组，其中，所述PCB板呈长条状且所述PCB板的长度方向与所述第二方向一致，相邻两所述灯条中，两侧的所述PCB板之间形成有间距。
  7. 如权利要求1所述背光模组，其中，所述第一方向与所述第二方向彼此垂直。
  8. 如权利要求1所述背光模组，其中，在每一所述灯条上，至少两个彼此相邻的所述灯珠构成一个灯珠组，所述透镜模组覆盖同一所述灯珠组下各所述灯珠的出光侧。
  9. 如权利要求8所述背光模组，其中，所述一个灯珠组内包含有三个沿所述第二方向依次排列的灯珠，三个灯珠分别通过同一个所述透镜模组进行光的扩散，单独一个灯珠所扩散出的光呈长方形，且所述长方形的长边为沿所述第一方向设置，所述长方形的短边为沿所述第二方向设置。
  10. 如权利要求8所述背光模组，其中，所述透镜模组包括设于所述PCB板上的透光板和设于所述透光板上的透镜，所述透光板覆盖同一所述灯珠组下各所述灯珠的出光侧，所述透镜位于所述灯珠的出光侧且每一所述灯珠的出光侧对应设有一个所述透镜。
  11. 如权利要求10所述背光模组，其中，所述透镜采用椭球形透镜，所述透镜在所述第一方向上的厚度大于在所述第二方向上的厚度。
  12. 如权利要求8所述背光模组，其中，所述背光模组还包括驱动IC，所述驱动IC焊接在所述PCB板上，所述驱动IC与所述灯珠电性连接。
  13. 如权利要求12所述背光模组，其中，在同一所述灯珠组中，各灯珠并联地与驱动IC电性连接。
  14. 如权利要求12所述背光模组，其中，一个所述驱动IC与多组所述灯珠组电性连接。
  15. 如权利要求4所述背光模组，其中，多个沿所述第二方向排列的所述灯珠的出射光通过所述透镜模组被扩散以使所述出射光的光型呈方形。
  16. 如权利要求4所述背光模组，其中，所述灯珠与所述透镜模组之间设有透光保护层，且所述透光保护层覆盖于所述灯珠的出光侧。
  17. 如权利要求4所述背光模组，其中，包括支撑柱以及光学膜层，所述支撑柱设于所述PCB板上并用于支撑所述光学膜层。
  18. 如权利要求4所述背光模组，其中，所述第二方向与所述第一方向相交的角度为90°。
  19. 如权利要求4所述背光模组，其中，沿所述第一方向排列的所述灯条中，相邻所述灯条之间的间距大于40mm。
  20. 一种显示装置，其中，包括如权利要求4至19任一项或者如权利要求1至3任一项所述的背光模组。
PCT/CN2023/081414 2022-06-02 2023-03-14 背光模组及显示装置 WO2023231505A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202221386006.3 2022-06-02
CN202221386006.3U CN217821185U (zh) 2022-06-02 2022-06-02 背光模组及显示装置

Publications (1)

Publication Number Publication Date
WO2023231505A1 true WO2023231505A1 (zh) 2023-12-07

Family

ID=83989580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/081414 WO2023231505A1 (zh) 2022-06-02 2023-03-14 背光模组及显示装置

Country Status (2)

Country Link
CN (1) CN217821185U (zh)
WO (1) WO2023231505A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN217821185U (zh) * 2022-06-02 2022-11-15 惠州视维新技术有限公司 背光模组及显示装置
CN115862477A (zh) * 2022-12-15 2023-03-28 深圳创维光学科技有限公司 灯条结构、背光模组及显示装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203431608U (zh) * 2013-07-24 2014-02-12 康佳集团股份有限公司 一种直下式背光模组、液晶显示器及液晶电视
CN204187531U (zh) * 2014-11-12 2015-03-04 青岛歌尔声学科技有限公司 一种直下式显示模组及显示装置
CN110568666A (zh) * 2019-09-12 2019-12-13 青岛海信电器股份有限公司 一种显示装置及背光模组
CN114063343A (zh) * 2020-07-31 2022-02-18 海信视像科技股份有限公司 一种显示装置
CN217821185U (zh) * 2022-06-02 2022-11-15 惠州视维新技术有限公司 背光模组及显示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203431608U (zh) * 2013-07-24 2014-02-12 康佳集团股份有限公司 一种直下式背光模组、液晶显示器及液晶电视
CN204187531U (zh) * 2014-11-12 2015-03-04 青岛歌尔声学科技有限公司 一种直下式显示模组及显示装置
CN110568666A (zh) * 2019-09-12 2019-12-13 青岛海信电器股份有限公司 一种显示装置及背光模组
CN114063343A (zh) * 2020-07-31 2022-02-18 海信视像科技股份有限公司 一种显示装置
CN217821185U (zh) * 2022-06-02 2022-11-15 惠州视维新技术有限公司 背光模组及显示装置

Also Published As

Publication number Publication date
CN217821185U (zh) 2022-11-15

Similar Documents

Publication Publication Date Title
KR102046766B1 (ko) 액정표시장치
WO2023231505A1 (zh) 背光模组及显示装置
US8284346B2 (en) Backlight unit and liquid crystal display device including the same
US20060221612A1 (en) Backlight unit and liquid crystal display having the same
US20070002565A1 (en) Backlight unit
JP2006286906A (ja) 発光ダイオード装置とこれを用いたバックライト装置及び液晶表示装置
US9170360B2 (en) Display device
JP2013131499A (ja) ライトユニット及びそれを用いた照明システム
JP6663471B2 (ja) 異形液晶発光装置
KR102266737B1 (ko) 렌즈, 렌즈를 포함하는 발광 장치, 및 발광 장치를 포함하는 백 라이트 유닛
KR20110136645A (ko) 백라이트 유닛 및 이를 구비한 액정표시장치
US9117379B2 (en) Backlight unit, display using the same and lighting system including the same
WO2023160643A1 (zh) 显示模组和显示装置
KR101272054B1 (ko) 액정표시장치
TWI358580B (en) Backlight module and liquid crystal display device
US20080186427A1 (en) Backlight assembly
JP2010108601A (ja) 面状光源及び液晶表示装置
TWI570482B (zh) 照明系統及使用該照明系統的顯示裝置
KR20120135651A (ko) 도광판 및 이를 포함한 액정표시장치
KR102391395B1 (ko) 광학렌즈 및 이를 포함하는 백라이트 유닛과 액정표시장치
KR20160059006A (ko) 백라이트 유닛 및 이를 구비한 액정표시장치
KR20090053087A (ko) 광학 시트 및 이를 이용한 백라이트 모듈
KR102118080B1 (ko) 직하형 백라이트 유닛을 구비한 표시장치 및 그 제조방법
KR101824035B1 (ko) 백라이트 유닛 및 그를 이용한 디스플레이 장치
KR101408688B1 (ko) 액정표시장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23814703

Country of ref document: EP

Kind code of ref document: A1