WO2016165293A1 - 直下式背光模组及液晶显示装置 - Google Patents

直下式背光模组及液晶显示装置 Download PDF

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Publication number
WO2016165293A1
WO2016165293A1 PCT/CN2015/091467 CN2015091467W WO2016165293A1 WO 2016165293 A1 WO2016165293 A1 WO 2016165293A1 CN 2015091467 W CN2015091467 W CN 2015091467W WO 2016165293 A1 WO2016165293 A1 WO 2016165293A1
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Prior art keywords
backlight module
convex lens
bottom wall
type backlight
direct type
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PCT/CN2015/091467
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English (en)
French (fr)
Inventor
刘金龙
李建林
张双双
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深圳Tcl新技术有限公司
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Publication of WO2016165293A1 publication Critical patent/WO2016165293A1/zh

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  • the present invention relates to the field of liquid crystal display technology, and in particular, to a direct type backlight module and a liquid crystal display device.
  • the direct-type backlight module currently on the market mainly comprises a diffuser plate, a back plate and a light bar fixed on the back plate, the back plate comprising a bottom wall and a side wall, however, the light-emitting angle of the light particles, and
  • the limitation of the distance between the bottom wall and the diffusing member is such that the light of the lamp particles can be emitted to the corner angle of the diffusing plate, and the number of the light bars must be large, so that the manufacturing cost is high.
  • the main purpose of the present invention is to provide a direct-lit backlight module and a display device, which aim to solve the problem that the current direct-lit backlight module has a high manufacturing cost due to the large number of light bars.
  • the present invention provides a direct type backlight module, which includes a diffusion plate, a back plate, and a light bar fixed on the back plate, the back plate including a bottom a wall, and two first side walls on both sides in the width direction of the light bar, the bottom wall and each of the first side walls form a predetermined angle, the light bar of the light bar
  • the sum of the maximum angle of illumination and 180 degrees is greater than or equal to 2 times each preset angle.
  • the distance between the bottom wall and the diffuser plate is greater than 40 mm and less than 50 mm.
  • the bottom wall has a width between the two first side walls, the bottom wall having a width greater than 25 mm and less than 35 mm.
  • the direct type backlight module further includes a convex lens disposed to cover the light particles.
  • the top of the convex lens is provided with a recessed portion that is recessed from an outer surface of the convex lens toward an inner wall surface of the convex lens.
  • the outer surface and the inner wall surface of the convex lens are spherically disposed.
  • the top of the convex lens is provided with a recessed portion that is recessed from an outer surface of the convex lens toward an inner wall surface of the convex lens.
  • the bottom wall is provided with a mounting groove for mounting the light bar.
  • a reflective film is disposed on an inner surface of the back sheet.
  • the reflective film includes a substrate attached to an inner surface of the back sheet, and a reflective layer attached to a surface of the substrate facing away from the back sheet, the substrate being made of a PET material.
  • the reflective layer is made of barium sulfate or barium carbonate.
  • the present invention also provides a liquid crystal display device, the liquid crystal display device includes a direct type backlight module, and the direct type backlight module includes a diffusion plate, a back plate, and a light bar fixed on the back plate,
  • the backboard includes a bottom wall and two first sidewalls on both sides in a width direction of the light bar, and the bottom wall forms a predetermined angle with each of the first sidewalls, the lamp The sum of the maximum angle of illumination of the strip of light and 180 degrees is greater than or equal to 2 times of each preset angle.
  • the distance between the bottom wall and the diffuser plate is greater than 40 mm and less than 50 mm.
  • the bottom wall has a width between the two first side walls, the bottom wall having a width greater than 25 mm and less than 35 mm.
  • the direct type backlight module further includes a convex lens disposed to cover the light particles.
  • the top of the convex lens is provided with a recessed portion that is recessed from an outer surface of the convex lens toward an inner wall surface of the convex lens.
  • the outer surface and the inner wall surface of the convex lens are spherically disposed.
  • the top of the convex lens is provided with a recessed portion that is recessed from an outer surface of the convex lens toward an inner wall surface of the convex lens.
  • the bottom wall is provided with a mounting groove for mounting the light bar.
  • a reflective film is disposed on an inner surface of the back sheet.
  • the reflective film includes a substrate attached to an inner surface of the back sheet, and a reflective layer attached to a surface of the substrate facing away from the back sheet, the substrate being made of a PET material.
  • the reflective layer is made of barium sulfate or barium carbonate.
  • the direct type backlight module includes a diffusion plate, a back plate and a light bar fixed on the back plate, the back plate includes a bottom wall, and is located at Two first sidewalls on both sides in the width direction of the light bar, a predetermined angle is formed between the bottom wall and each of the first sidewalls, and a maximum angle of light emission of the light bar of the light bar is 180
  • the sum of degrees is greater than or equal to 2 times of each preset angle, so that light emitted by the lamp particles of the light bar can be reflected to the diffuser through the two first sidewalls, thus, a lamp
  • the strip can reflect light to the entire area of the diffuser plate in the width direction of the light strip via the two first side walls, thereby reducing the number of the light strips to one, thereby reducing The manufacturing cost of the direct type backlight module and the liquid crystal display device.
  • FIG. 1 is a schematic view showing the mounting of an embodiment of a liquid crystal display device according to the present invention
  • FIG. 2 is a schematic structural view of a direct type backlight module of the liquid crystal display device shown in FIG. 1;
  • FIG. 3 is a partial structural view of the direct type backlight module shown in FIG. 2.
  • FIGS. 1 to 3 illustrate an embodiment of a liquid crystal display device according to the present invention.
  • the liquid crystal display device 200 includes a direct type backlight module 100.
  • the direct type backlight module 100 includes a back plate 1, a light bar 2, a diffusion plate 3, an optical film 4, and a glass panel 5.
  • the light bar 2 includes a circuit board (not shown) disposed in a long strip, and a plurality of lamp beads 21 arranged in the longitudinal direction of the circuit board (since a plurality of lamp beads 21 are arranged along the length direction of the circuit board, such that the diffusion plate 3 is located at the length of the light bar 2 At the corners of the direction, there is no problem that the light cannot reach).
  • the back plate 1 includes a bottom wall 11 and two sides on both sides of the light bar 2 (specifically, the circuit board of the light bar 2) in the width direction (the left and right directions in FIGS. 2 and 3) A side wall 12 and two second side walls (not shown) at both ends in the longitudinal direction of the light bar 2.
  • a predetermined angle a is formed between the bottom wall 11 and each of the first side walls 12 (in the embodiment, the predetermined angle formed between the bottom wall 11 and each of the first side walls 12 is equal and It is a, obviously, the design is not limited thereto, the predetermined angle formed between the bottom wall 11 and each of the first side walls 12 may not be equal, and the maximum angle b and the light of the lamp bead 21 are 180.
  • the sum of degrees is greater than or equal to 2 times of each preset angle, that is, the preset angle a satisfies 2a ⁇ +b, that is, ( ⁇ -b)/2 ⁇ -a, so that the light bar
  • the light emitted by the lamp bead 21 can be reflected by the two first side walls 12 to the diffusing plate 3 so that all the regions of the diffusing plate 3 in the width direction of the light bar 2 are There is light reaching.
  • one of the light strips 2 can reflect light to the diffuser via the two first sidewalls 12 3 in the entire width direction of the light bar 2, thereby reducing the number of the light bars 2 to one, and further reducing the manufacturing cost of the direct type backlight module 100 and the liquid crystal display device 200 .
  • the distance between the bottom wall 11 and the diffuser plate 3 is greater than 40 mm and less than 50 mm.
  • the distance between the bottom wall 11 and the diffusing plate 3 is greater than 40 mm, so that the light refracted by the lens 23 can cover the entire area of the diffusing plate 3 without a dead angle, so that the display does not appear. (not shown)
  • the phenomenon that the screen is uneven.
  • the distance between the bottom wall 11 and the diffuser plate 3 is less than 50 mm, which makes the thickness of the backlight module 100 suitable for use.
  • the bottom wall 11 has a width between the two first side walls 12, and the width of the bottom wall is greater than 25 mm and less than 35 mm.
  • the width of the bottom wall 11 is greater than 25 mm, which can solve the heat dissipation problem of the light bar 2.
  • the width of the bottom wall 11 is less than 35 mm because the size is too large to affect the assembly and use of the backlight module 100.
  • the liquid crystal display device 200 provided in this embodiment, because the bottom wall 11 and the two first sidewalls 12 are disposed, the shape of the direct type backlight module 100 is similar to a triangular cavity structure, in a small room or The liquid crystal display device 200 can be mounted in a corner in the space to enhance the viewing effect, wherein the dotted line portion in Fig. 1 shows the liquid crystal display device 200a used in the prior art.
  • the direct type backlight module 100 further includes a convex lens 22 disposed on the lamp bead 21 .
  • the arrangement of the convex lens 22 can further disperse the light emitted by the lamp bead 21, thereby increasing the maximum illumination angle b.
  • the preset angle a is increased.
  • the distance between the bottom wall 11 and the diffusing plate 3 can be reduced, and the thickness of the entire direct type backlight module 100 can be reduced, and the backlight module 100 can be used.
  • the outer surface 221 and the inner wall surface 222 of the convex lens 22 are spherically disposed.
  • the curvature of the inner wall surface 222 is smaller than the curvature of the outer surface 221, and the light emitted by the lamp bead 21 is first refracted and diffused through the inner wall surface 222, and after the outer surface 221 is reached, the refractive diffusion continues. Thereby, the maximum illumination angle b of the lamp bead 21 is further increased.
  • the maximum intensity region of the illumination of the lamp bead 21 is on the top of the convex lens 22.
  • the top of the convex lens 22 is provided with a recess 221a, and the recess 221a is from the convex lens 22
  • the outer surface 221 is recessed toward the inner wall surface 222 of the convex lens 22 such that the convex lens 22 is formed with the biconvex structures 22a and 22b arranged in the width direction of the light bar 2.
  • the recessed portion 221a is disposed such that the light at the top of the convex lens 22 diverge toward both sides, thereby making the light of the direct type backlight module 100 more uniform.
  • the bottom wall 11 is provided with a mounting groove 1a, and the light bar 2 is disposed in the mounting groove 1a, so as to increase the gap between the lamp bead 21 and the diffusing plate 3 At the same time, the thickness of the direct type backlight module 100 is not increased.
  • a reflective film (not shown) is disposed on the inner surface of the back sheet 1, so that the reflectance of the light can be increased to increase the brightness of the display screen.
  • the reflective film includes a substrate (not shown) attached to an inner surface of the back sheet 1 and a reflective layer (not shown) attached to a surface of the substrate facing away from the back sheet
  • the substrate is made of PET (Polyethylene) Made of terephthalate, polyethylene terephthalate), the reflective layer is made of barium sulfate or barium carbonate.

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Abstract

一种直下式背光模组（100）及液晶显示装置（200），直下式背光模组（100）包括扩散板（3）、背板（1）以及固设于背板（1）上的灯条（2），背板（1）包括底壁（11）、以及位于灯条（2）的宽度方向上的两侧的两个第一侧壁（12），底壁（11）与每一第一侧壁（12）之间形成预设角度，灯条（2）的灯珠（21）发光的最大角度与180度之和大于或等于每一预设角度的2倍，以使，灯条（2）的灯珠（21）发出的光均能经两个第一侧壁（12）反射至扩散板（3），如此，一条灯条即可将光线经由两个第一侧壁（12）反射到扩散板（3）的在灯条（2）的宽度方向上的全部区域，因而可将灯条（2）的数量减少到一条，进而降低了直下式背光模组及液晶显示装置的制造成本。

Description

直下式背光模组及液晶显示装置
技术领域
本发明涉及液晶显示技术领域，具体涉及一种直下式背光模组及液晶显示装置。
背景技术
目前市场上存在的直下式背光模组主要包括扩散板、背板以及固设于所述背板上的灯条，所述背板包括底壁和侧壁，然而，受到灯粒发光角度、以及底壁与扩散件之间的距离的限制，为了使得灯粒的光均能发射至所述扩散板的边边角角，灯条数量必须较多，如此，使得制造成本较高。
发明内容
本发明的主要目的在于提供一种直下式背光模组及显示装置，旨在解决当前直下式背光模组因灯条数量较多而存在制造成本较高的问题。
为到达上述之技术目的，本发明提供一种直下式背光模组，所述直下式背光模组包括扩散板、背板以及固设于所述背板上的灯条，所述背板包括底壁、以及位于所述灯条的宽度方向上的两侧的两个第一侧壁，所述底壁与每一所述第一侧壁之间形成预设角度，所述灯条的灯粒发光的最大角度与180度之和大于或等于每一预设角度的2倍。
优选地，所述底壁与所述扩散板之间的距离大于40mm且小于50mm。
优选地，所述底壁具有位于所述两个第一侧壁之间的宽度，所述底壁的宽度大于25mm且小于35mm。
优选地，所述直下式背光模组还包括罩盖所述灯粒设置的凸透镜。
优选地，所述凸透镜的顶部设有凹陷部，所述凹陷部从所述凸透镜的外表面向所述凸透镜的内壁面凹入。
优选地，所述凸透镜的外表面和内壁面均呈球面设置。
优选地，所述凸透镜的顶部设有凹陷部，所述凹陷部从所述凸透镜的外表面向所述凸透镜的内壁面凹入。
优选地，所述底壁设有供所述灯条安装的安装槽。
优选地，所述背板的内表面上设有反射膜。
优选地，所述反射膜包括贴附在所述背板的内表面的基底、以及附着于所述基底的背离所述背板的表面上的反射层，所述基底采用PET材料制成，所述反射层采用硫酸钡或碳酸钡制成。
本发明还提供一种液晶显示装置，所述液晶显示装置包括直下式背光模组，所述直下式背光模组包括扩散板、背板以及固设于所述背板上的灯条，所述背板包括底壁、以及位于所述灯条的宽度方向上的两侧的两个第一侧壁，所述底壁与每一所述第一侧壁之间形成预设角度，所述灯条的灯粒发光的最大角度与180度之和大于或等于每一预设角度的2倍。
优选地，所述底壁与所述扩散板之间的距离大于40mm且小于50mm。
优选地，所述底壁具有位于所述两个第一侧壁之间的宽度，所述底壁的宽度大于25mm且小于35mm。
优选地，所述直下式背光模组还包括罩盖所述灯粒设置的凸透镜。
优选地，所述凸透镜的顶部设有凹陷部，所述凹陷部从所述凸透镜的外表面向所述凸透镜的内壁面凹入。
优选地，所述凸透镜的外表面和内壁面均呈球面设置。
优选地，所述凸透镜的顶部设有凹陷部，所述凹陷部从所述凸透镜的外表面向所述凸透镜的内壁面凹入。
优选地，所述底壁设有供所述灯条安装的安装槽。
优选地，所述背板的内表面上设有反射膜。
优选地，所述反射膜包括贴附在所述背板的内表面的基底、以及附着于所述基底的背离所述背板的表面上的反射层，所述基底采用PET材料制成，所述反射层采用硫酸钡或碳酸钡制成。
本发明提供的直下式背光模组及液晶显示装置，所述直下式背光模组包括扩散板、背板以及固设于所述背板上的灯条，所述背板包括底壁、以及位于所述灯条的宽度方向上的两侧的两个第一侧壁，所述底壁与每一第一侧壁之间形成预设角度，所述灯条的灯粒发光的最大角度与180度之和大于或等于每一预设角度的2倍，以使，所述灯条的灯粒发出的光均能经所述两个第一侧壁反射至所述扩散板，如此，一条灯条即可将光线经由所述两个第一侧壁反射到所述扩散板的于所述灯条的宽度方向上的全部区域，因而可将所述灯条的数量减少到一条，进而降低了直下式背光模组及液晶显示装置的制造成本。
附图说明
图1为本发明提供的液晶显示装置的一实施例的安装示意图；
图2为图1所示的液晶显示装置的直下式背光模组的结构示意图；
图3为图2所示的直下式背光模组的部分结构示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
以下结合说明书附图及具体实施例进一步说明本发明的技术方案。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供一种液晶显示装置，图1至3为本发明提供的液晶显示装置的一实施例，请参阅图1至图3，所述液晶显示装置200包括直下式背光模组100，所述直下式背光模组100包括背板1、灯条2、扩散板3、光学膜片4以及玻璃面板5，所述灯条2包括呈长条设置的电路板（未图示）、以及沿所述电路板的长度方向排布的多个灯珠21（因沿所述电路板的长度方向排布有多个灯珠21，而使得，所述扩散板3在位于所述灯条2的长度方向的边角处，不存在光线达不到的问题）。
所述背板1包括底壁11、位于所述灯条2（具体为所述灯条2的电路板）的宽度方向（图2和图3中的左右向）上的两侧的两个第一侧壁12、以及位于所述灯条2的长度方向上的两端的两个第二侧壁（未图示）。所述底壁11与每一第一侧壁12之间形成预设角度a（于本实施例中，所述底壁11与每一第一侧壁12之间的形成的预设角度相等且都为a，显然，本设计不限于此，所述底壁11与每一第一侧壁12之间的形成的预设角度也可不相等），所述灯珠21发光的最大角度b与180度之和大于或等于每一预设角度的2倍，即所述预设角度a满足2a≤π+b，也即（π-b）/2≤π-a，以使，所述灯条2的灯珠21发出的光均能经所述两个第一侧壁12反射至所述扩散板3，以使所述扩散板3的于所述灯条2的宽度方向上的全部区域均有光线到达。
如此，在所述预设角度a和两所述第一侧壁12长度的限定下，一条所述灯条2即可将光线经由两个所述第一侧壁12，反射到所述扩散板3的于所述灯条2的宽度方向的全部区域，因而，可将所述灯条2的数量减少到一条，进而，可降低所述直下式背光模组100及液晶显示装置200的制造成本。
于本实施例中，所述底壁11与所述扩散板3之间的距离大于40mm且小于50mm。所述底壁11与所述扩散板3之间的距离大于40mm，能够使所述透镜23折射出的光线覆盖所述扩散板3的全部区域，不会有死角，如此，不会出现显示屏（未图示）画面不均匀的现象。所述底壁11与所述扩散板3之间的距离小于50mm，会使所述背光模组100的厚度适于使用。
于本实施例中，所述底壁11具有位于所述两个第一侧壁12之间的宽度，所述底壁的宽度大于25mm且小于35mm。所述底壁11的宽度大于25mm，可以使所述灯条2的散热问题解决。所述底壁11的宽度小于35mm，是因为尺寸过大会影响到所述背光模组100装配及使用。
本实施例提供的液晶显示装置200，因为所述底壁11和两所述第一侧壁12的设置使得所述直下式背光模组100的形状类似为三角腔型结构，在狭小的房间或空间内可将所述液晶显示装置200安装在墙角，以提升观看效果，其中，图1中虚线部分显示的为现有技术使用的液晶显示装置200a。
于本实施例中，所述直下式背光模组100还包括罩盖所述灯珠21设置的凸透镜22。所述凸透镜22的设置可以使所述灯珠21发出的光线进一步分散，进而增大所述最大发光角度b，根据公式2a≤π+b可知：所述最大发光角度b的增大时，可同时增大预设角度a。进而，可降低所述底壁11与所述扩散板3之间的距离，即可在减少所述直下式背光模组100整体的厚度同时，也能使所述背光模组100达到使用需求。
进一步的，所述凸透镜22的外表面221和内壁面222均呈球面设置。如此，所述内壁面222的曲率要小于所述外表面221的曲率，所述灯珠21发射的光线先经过所述内壁面222产生折射扩散，到达所述外表面221后继续进行折射扩散，由此进一步增大所述灯珠21的最大发光角度b。
通常，所述灯珠21的发光的最大光强区在所述凸透镜22的顶部，于本实施例中，所述凸透镜22的顶部设有凹陷部221a，所述凹陷部221a从所述凸透镜22的外表面221向所述凸透镜22的内壁面222凹入，以使所述凸透镜22形成有沿所述灯条2的宽度方向排布的双凸结构22a和22b。所述凹陷部221a的设置使得所述凸透镜22的顶部处的光线向两旁发散，从而使所述直下式背光模组100的光亮更加均匀。
于本实施例中，所述底壁11设有安装槽1a，所述灯条2设于所述安装槽1a内，如此，在增大所述灯珠21与所述扩散板3之间的距离的同时，又不会增加所述直下式背光模组100整体的厚度。
于本实施例中，所述背板1的内表面上设有反射膜（未图示），如此，可增大光的反射率，使显示屏的亮度增加。具体地，所述反射膜包括贴附在所述背板1的内表面上基底（未图示）、以及附着于所述基底的背离所述背板的表面上的反射层（未图示），所述基底采用PET(Polyethylene terephthalate，聚对苯二甲酸乙二醇酯)材料制成，所述反射层采用硫酸钡或碳酸钡制成。
以上仅为本发明的优选实施例，并非因此限制其专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (20)

  1. 一种直下式背光模组，其特征在于，所述直下式背光模组包括扩散板、背板以及固设于所述背板上的灯条，所述背板包括底壁、以及位于所述灯条的宽度方向上的两侧的两个第一侧壁，所述底壁与每一所述第一侧壁之间形成预设角度，所述灯条的灯粒发光的最大角度与180度之和大于或等于每一预设角度的2倍。
  2. 如权利要求1所述的直下式背光模组，其特征在于，所述底壁与所述扩散板之间的距离大于40mm且小于50mm。
  3. 如权利要求1所述的直下式背光模组，其特征在于，所述底壁具有位于所述两个第一侧壁之间的宽度，所述底壁的宽度大于25mm且小于35mm。
  4. 如权利要求1所述的直下式背光模组，其特征在于，所述直下式背光模组还包括罩盖所述灯粒设置的凸透镜。
  5. 如权利要求4所述的直下式背光模组，其特征在于，所述凸透镜的顶部设有凹陷部，所述凹陷部从所述凸透镜的外表面向所述凸透镜的内壁面凹入。
  6. 如权利要求4所述的直下式背光模组，其特征在于，所述凸透镜的外表面和内壁面均呈球面设置。
  7. 如权利要求6所述的直下式背光模组，其特征在于，所述凸透镜的顶部设有凹陷部，所述凹陷部从所述凸透镜的外表面向所述凸透镜的内壁面凹入。
  8. 如权利要求1所述的直下式背光模组，其特征在于，所述底壁设有供所述灯条安装的安装槽。
  9. 如权利要求1所述的直下式背光模组，其特征在于，所述背板的内表面上设有反射膜。
  10. 如权利要求9所述的直下式背光模组，其特征在于，所述反射膜包括贴附在所述背板的内表面的基底、以及附着于所述基底的背离所述背板的表面上的反射层，所述基底采用PET材料制成，所述反射层采用硫酸钡或碳酸钡制成。
  11. 一种液晶显示装置，其特征在于，所述液晶显示装置包括直下式背光模组，所述直下式背光模组包括扩散板、背板以及固设于所述背板上的灯条，所述背板包括底壁、以及位于所述灯条的宽度方向上的两侧的两个第一侧壁，所述底壁与每一所述第一侧壁之间形成预设角度，所述灯条的灯粒发光的最大角度与180度之和大于或等于每一预设角度的2倍。
  12. 如权利要求11所述的液晶显示装置，其特征在于，所述底壁与所述扩散板之间的距离大于40mm且小于50mm。
  13. 如权利要求11所述的液晶显示装置，其特征在于，所述底壁具有位于所述两个第一侧壁之间的宽度，所述底壁的宽度大于25mm且小于35mm。
  14. 如权利要求11所述的液晶显示装置，其特征在于，所述直下式背光模组还包括罩盖所述灯粒设置的凸透镜。
  15. 如权利要求14所述的液晶显示装置，其特征在于，所述凸透镜的顶部设有凹陷部，所述凹陷部从所述凸透镜的外表面向所述凸透镜的内壁面凹入。
  16. 如权利要求14所述的液晶显示装置，其特征在于，所述凸透镜的外表面和内壁面均呈球面设置。
  17. 如权利要求16所述的液晶显示装置，其特征在于，所述凸透镜的顶部设有凹陷部，所述凹陷部从所述凸透镜的外表面向所述凸透镜的内壁面凹入。
  18. 如权利要求11所述的液晶显示装置，其特征在于，所述底壁设有供所述灯条安装的安装槽。
  19. 如权利要求11所述的液晶显示装置，其特征在于，所述背板的内表面上设有反射膜。
  20. 如权利要求19所述的液晶显示装置，其特征在于，所述反射膜包括贴附在所述背板的内表面的基底、以及附着于所述基底的背离所述背板的表面上的反射层，所述基底采用PET材料制成，所述反射层采用硫酸钡或碳酸钡制成。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108870155A (zh) * 2018-07-13 2018-11-23 安徽芯瑞达科技股份有限公司 一种直下式灯条

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204554536U (zh) * 2015-04-16 2015-08-12 深圳Tcl新技术有限公司 直下式背光模组及液晶显示装置
CN105180012A (zh) * 2015-08-19 2015-12-23 宁波付世光电科技股份有限公司 一种底发光led面板灯
CN107942581B (zh) * 2017-11-20 2021-03-16 四川长虹电器股份有限公司 一种直下式背光模组结构
CN110967875A (zh) * 2019-12-30 2020-04-07 深圳市瀚达美电子有限公司 车载直下式背光模组及显示装置
CN111208672A (zh) * 2020-01-15 2020-05-29 安徽康佳电子有限公司 一种双层混光腔体直下式模组
CN113296309A (zh) * 2020-02-24 2021-08-24 海信视像科技股份有限公司 一种显示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322612A (zh) * 2011-10-12 2012-01-18 深圳市华星光电技术有限公司 一种led一次透镜、背光模组及液晶显示装置
US20120224111A1 (en) * 2011-03-01 2012-09-06 Panasonic Liquid Crystal Display Co., Ltd. Planar light source device, liquid crystal display device, and television set
CN202647443U (zh) * 2012-06-19 2013-01-02 Tcl光电科技(惠州)有限公司 Led背光模组及led液晶显示装置
CN202813036U (zh) * 2012-07-10 2013-03-20 Tcl光电科技(惠州)有限公司 直下式背光模组和液晶显示装置
CN203731203U (zh) * 2013-12-26 2014-07-23 Tcl海外电子（惠州）有限公司 背光模组、液晶显示器及电视机
CN204554536U (zh) * 2015-04-16 2015-08-12 深圳Tcl新技术有限公司 直下式背光模组及液晶显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120224111A1 (en) * 2011-03-01 2012-09-06 Panasonic Liquid Crystal Display Co., Ltd. Planar light source device, liquid crystal display device, and television set
CN102322612A (zh) * 2011-10-12 2012-01-18 深圳市华星光电技术有限公司 一种led一次透镜、背光模组及液晶显示装置
CN202647443U (zh) * 2012-06-19 2013-01-02 Tcl光电科技(惠州)有限公司 Led背光模组及led液晶显示装置
CN202813036U (zh) * 2012-07-10 2013-03-20 Tcl光电科技(惠州)有限公司 直下式背光模组和液晶显示装置
CN203731203U (zh) * 2013-12-26 2014-07-23 Tcl海外电子（惠州）有限公司 背光模组、液晶显示器及电视机
CN204554536U (zh) * 2015-04-16 2015-08-12 深圳Tcl新技术有限公司 直下式背光模组及液晶显示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108870155A (zh) * 2018-07-13 2018-11-23 安徽芯瑞达科技股份有限公司 一种直下式灯条

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