WO2020186616A1 - 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
WO2020186616A1
WO2020186616A1 PCT/CN2019/087145 CN2019087145W WO2020186616A1 WO 2020186616 A1 WO2020186616 A1 WO 2020186616A1 CN 2019087145 W CN2019087145 W CN 2019087145W WO 2020186616 A1 WO2020186616 A1 WO 2020186616A1
Authority
WO
WIPO (PCT)
Prior art keywords
backlight module
notch
light source
light
guide plate
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/087145
Other languages
English (en)
French (fr)
Inventor
张鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
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 Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US16/622,936 priority Critical patent/US11340494B2/en
Publication of WO2020186616A1 publication Critical patent/WO2020186616A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/009—Positioning aspects of the light source in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels

Definitions

  • the present disclosure relates to the field of display technology, in particular to a backlight module and a display device.
  • the screen-to-body ratio of display devices is constantly increasing, and the lower frame of the liquid crystal display module (LCD Module, LCM) is also getting smaller and smaller.
  • the lower frame of the device uses a chip on film (Chip On film, COF) technology to reduce the width of the lower frame is one of the methods to achieve a high screen-to-body ratio of the display device. Therefore, the backlight module of the display device (Backlight The lower bezel of the Module (BLU) is narrowed to increase the screen-to-body ratio of the display device.
  • COF Chip On film
  • FIGS. 1A and 1B are schematic diagrams of the front view structure of a conventional backlight module 100' and a display device 10, respectively.
  • the backlight module 100' includes a back plate 11', a light guide plate 12', and a light source group 13';
  • the display device 10' includes the backlight module 100' and a display panel 200'.
  • the display panel 200' includes an array substrate 21', a color film substrate 22' disposed opposite to the array substrate 21', and binding The flip chip film 23' on the array substrate 21', wherein the array substrate 21' includes a display area 211' and a non-display area 212' adjacent to the display area 211'.
  • the height d of the lower border (LCM outline) of the display device 10' is the distance from the lower edge of the display area (CELL VA) 211' to the lower edge of the display device 10', that is, the distance between the display area 211' and the lower edge of the display device 10'.
  • the display device 10' mainly narrows its lower frame by increasing the arrangement density of the light source group 13' to reduce the light mixing distance, that is, by reducing the backlight module 100'
  • the value of the distance b between the viewing zone and the edge of the backlight module 100' is used to increase the screen-to-body ratio.
  • the space for the light source group 13' is limited, resulting in The arrangement density of the light source group 13' cannot be increased. Therefore, it is impossible to increase the arrangement density of the light source group 13' (that is, increase the b value) to make the lower frame size of the display device 10' smaller, and thus cannot be increased.
  • Screen-to-body ratio Screen-to-body ratio.
  • the present disclosure provides a backlight module and a display device, which solves the problem that as the lower frame becomes narrower and narrower, the arrangement space of the light source groups is limited, resulting in the inability to increase the arrangement density of the light source groups. Therefore, it is impossible to increase the arrangement of the light source groups. Density makes the size of the lower frame of the display device smaller, and then the technical problem that the screen-to-body ratio cannot be increased.
  • a backlight module including:
  • the light guide plate is arranged on the back plate, and the light guide plate has a light incident surface and a light exit surface;
  • the back plate is provided with a first notch at one end close to the light incident surface of the light guide plate, and the first notch divides the back plate on both sides of the first notch into a first light source placement area and The second light source placement area, wherein a first light source group is installed in the first light source placement area, a second light source group is installed in the second light source placement area, and the first light source group and the second light source group are The light exit side is arranged opposite to the light incident surface of the light guide plate.
  • the width of the first notch is 1%-50% of the width of the back plate.
  • the edge of the light guide plate close to the light incident surface is provided with a first concave portion and a second concave portion, and the first concave portion and the second concave portion are A convex portion is formed in between, and the side surface of the convex portion corresponds to the first notch.
  • the first recessed portion includes a first vertical surface and a first inclined surface
  • the second recessed portion includes a second vertical surface and a second inclined surface
  • the first Both the inclined surface and the second inclined surface are connected to the edge of the convex portion.
  • the first angle formed between the first inclined surface and the first vertical surface is a non-acute angle
  • the second inclined surface is opposite to the second vertical surface.
  • the second angle formed therebetween is a non-acute angle.
  • the first included angle is 90° to 135°
  • the second included angle is 90° to 135°
  • the edge of the convex portion is linear or arc-shaped.
  • the first light source group includes a plurality of LED lamps arranged at uniform intervals along its length
  • the second light source group includes a plurality of LEDs arranged at uniform intervals along its length. light.
  • the backlight module further includes:
  • An optical film provided on one side of the light emitting surface of the light guide plate
  • a reflective sheet disposed on the side of the light guide plate away from the light exit surface
  • a plastic frame arranged on the back plate.
  • the embodiments of the present disclosure provide a display device, including the above-mentioned backlight module and a display panel.
  • the display panel includes an array substrate, a color filter substrate disposed opposite to the array substrate, and a flip chip bound on the array substrate film;
  • the array substrate includes a display area and a non-display area adjacent to the display area;
  • the non-display area is provided with a second gap at one end away from the display area, the second gap corresponds to the first gap, and the flip chip film is bound to the first gap near the second gap.
  • the chip on film passes through the second notch and the first notch in sequence to be bent to the back of the backlight module.
  • the bending vertices of the chip on film are located in the first notch and the second notch.
  • the orthographic projection of the second notch on the backlight module is outside the orthographic projection of the first notch on the backlight module.
  • the beneficial effects of the present disclosure are: the backlight module and the display device provided by the present disclosure are provided with a first notch on the back plate of the backlight module, wherein the first notch corresponds to the second notch provided on the display panel, and Placing the light source group on the back plate at both ends of the first notch reduces the size of the lower frame of the display device, increases the screen-to-body ratio of the display device, and makes the light incident on the display panel from the backlight module more uniform. Enhance the differentiated performance of products and enhance the market competitiveness of products.
  • FIG. 1A is a schematic diagram of a front view of a prior art backlight module
  • FIG. 1B is a schematic diagram of the front structure of a display device in the prior art
  • FIG. 2 is a schematic diagram of the front view structure of a backlight module provided in the first embodiment of the disclosure
  • FIG. 3 is a schematic diagram of the front view structure of a light guide plate provided in the first embodiment of the disclosure
  • FIG. 4A is a schematic front view of the structure of another light guide plate provided in the first embodiment of the disclosure.
  • FIG. 4B is a schematic side view of the structure of the light guide plate in FIG. 4A;
  • FIG. 5A is a schematic structural diagram of a first light source group according to Embodiment 1 of the present disclosure.
  • 5B is a schematic structural diagram of a second light source group according to Embodiment 1 of the disclosure.
  • FIG. 6 is a schematic diagram of the shape and structure of yet another light guide plate provided by the first embodiment of the disclosure.
  • FIG. 7 is a schematic structural diagram of a display device provided in the second embodiment of the disclosure.
  • FIG. 8 is a schematic structural diagram of another display device provided in the second embodiment of the disclosure.
  • the present disclosure is directed to the prior art backlight module and display device.
  • the arrangement space of the light source groups is limited, resulting in the inability to increase the arrangement density of the light source groups. Therefore, it is impossible to increase the arrangement of the light source groups.
  • This embodiment can solve the technical problem that the lower frame of the display screen becomes narrower due to the density.
  • the backlight module 100 provided by the embodiment of the present disclosure includes:
  • the light guide plate 12 is disposed on the back plate 11, the light guide plate 12 has a light incident surface 121 and a light output surface 122, wherein the light incident surface 121 is located on the side of the light guide plate 12, and the light output surface 121 is located Above the light guide plate 12;
  • the back plate 11 is provided with a first notch 111 at one end close to the light incident surface 121 of the light guide plate 12, and the first notch 111 divides the back plate 11 located on both sides of the first notch 111.
  • a first light source placement area and a second light source placement area wherein a first light source group 13 is installed in the first light source placement area, a second light source group 14 is installed in the second light source placement area, and the first light source
  • the light exit sides of the group 13 and the second light source group 14 are both arranged opposite to the light incident surface 121 of the light guide plate 12.
  • the shape of the first notch 111 is rectangular, and at the same time, the width of the first notch 111 is 1%-50% of the width of the back plate 11.
  • the width of the first notch 111 needs to satisfy the covering Crystalline film (Chip On Flex, or, Chip On Film, COF) can be bent through the first notch 111;
  • the first light source group 13 and the first light source group 13 and the second light source can be placed in the first light source placement area and the second light source placement area, respectively Sufficient space is reserved for the second light source group 14 so that the backlight module 100 can provide sufficiently strong light for the display panel.
  • FIG. 3 is a schematic diagram of the front view structure of the light guide plate 12 provided by the embodiment of the disclosure.
  • the shape of the light guide plate 12 is rectangular, and the first light source group 13 and the second light source group 14 are respectively arranged in the The two sides of the light guide plate 12 are arranged opposite to a partial area of the light incident surface 121 of the light guide plate 12, and the light emitted by the first light source group 13 and the second light source group 14 enters this area;
  • the first light source group 13 and the second light source group 14 are not kept opposite to other parts of the light incident surface 121 without light entering, which easily causes uneven light entering the light guide plate 12 It happened.
  • the difference between the light guide plate 12 provided by the embodiment of the present disclosure and FIG. 3 is: the light guide plate 12 is provided with a first recess 123 and a second recess at the edge close to the light incident surface 121 A convex portion 125 is formed between the first concave portion 123 and the second concave portion 124, and the convex portion 125 is located in the middle of the light guide plate 12, but the first concave portion 123, The positions of the second concave portion 124 and the convex portion 125 are not limited thereto.
  • the first concave portion 123 and the second concave portion 124 may be placed inside the light guide plate 12.
  • the first concave portion 123 includes a first vertical surface 1231 and a first inclined surface 1232
  • the second concave portion 124 includes a second vertical surface 1241 and a second inclined surface 1242
  • the first The inclined surface 1232 and the second inclined surface 1242 are both connected to the edge 1251 of the convex portion 125, wherein the first vertical surface 1231 and the light emitting surface 122 of the light guide plate 12 are perpendicular to each other, and similarly, The second vertical surface 1241 and the light emitting surface 122 of the light guide plate are perpendicular to each other.
  • the first vertical surface 1231 and the second vertical surface 1241 may be located on the same plane or on different planes. This should not be limited.
  • the first inclined surface 1232 and the first vertical surface 1231 form a first included angle ⁇ 1, the first included angle ⁇ 1 is a non-acute angle, and the second inclined surface 1242 and the second vertical surface 1241
  • the second included angle ⁇ 2 formed therebetween is a non-acute angle.
  • the size of the first included angle ⁇ 1 is 90° ⁇ 135°
  • the second included angle ⁇ 2 is 90° ⁇ 135°, so that the first light source group 13 and the second light source group 14
  • the emitted light enters the convex portion 125, so that the first light source group 13 and the second light source group 14 enter the light guide plate 12 to be evenly distributed, so as to obtain a better optical taste .
  • the size of the first included angle ⁇ 1 and the second included angle ⁇ 2 may be the same or different.
  • the first light source group 13 includes a plurality of LED lamps 131 arranged at even intervals along its length.
  • the LED lamps 131 are arranged on a flexible printed circuit board 132.
  • the printed circuit board 132 is divided into a vertical section and an inclined section.
  • the vertical section is opposite to the first vertical surface 1231, the inclined section is opposite to the first inclined surface 1232, and the vertical section is opposite to the inclined section.
  • the included angle is equal to the first included angle ⁇ 1;
  • the second light source group 14 includes a plurality of LED lamps 141 evenly spaced along its length.
  • the LED lamps 141 are arranged on the flexible printed circuit board 142, and the printed circuit board
  • the circuit board 142 is also divided into a vertical section and an inclined section.
  • the vertical section is opposite to the second vertical surface 1241, the inclined section is opposite to the second inclined surface 1242, and the vertical section is opposite to the inclined section.
  • the included angle is equal to the second included angle ⁇ 2, and the number of LED lights in each section of the first light source group 13 and the second light source group 14 is determined according to their corresponding plane widths.
  • the edge 1251 of the convex portion 125 is linear, but the embodiment of the present disclosure should not be limited to the shape of the edge 1251 of the convex portion 125, for example, as shown in FIG. 6, so
  • the shape of the edge 1251 of the convex portion 125 is an arc shape extending into the light guide plate 12, which can further increase the height of the first notch 111, thereby further narrowing the lower frame of the display device.
  • the backlight module 100 further includes: an optical film disposed on the side of the light emitting surface 122 of the light guide plate 12; a reflective film disposed on the side of the light guide plate 12 facing away from the light emitting surface 122;
  • the plastic frame on the back plate 11 will not be described in detail here.
  • the display device 10 provided by the embodiment of the present disclosure includes the backlight module 100 and the display panel 200 provided in the first embodiment.
  • the display panel 200 includes an array substrate 21 and the array substrate 21.
  • the color filter substrate 22 and the chip-on-chip film 23 bound on the array substrate 21 are oppositely arranged.
  • the array substrate 21 includes a display area 211 and a non-display area 212 adjacent to the display area 211.
  • a step area is formed between the array substrate 21 and the color filter substrate 22, and the step area is the non-display area 212 of the array substrate 21.
  • a second gap 2221 is provided at one end of the step area away from the display area 211, and the chip on film 23 is bound in the non-display area 212 close to the first edge of the second gap 2221.
  • the chip on film 23 passes through the second notch 2221 and the first notch 111 in sequence to be bent to the back of the backlight module 100.
  • the height d of the lower frame (LCM outline) of the display device 10 is the distance from the display area (CELL VA) 211 to the lower edge of the display device 10, that is, the display area 211 and the backlight module
  • the sum of the distance c between the edge (BLU outline) and the lower edge of the display device 10, that is, d a+b+c, because the bending vertex D of the chip on film 23 is located in the first gap 111
  • the bending apex D of the chip-on-chip 23 can be located in the first notch 111 and the second notch 2221, so the edge of the backlight module 100 and
  • the value of the distance c between the edges of the display device 10 can be reduced compared to the value of c in the conventional display device (
  • the second notch 2221 corresponds to the first notch 111.
  • the orthographic projection of the second notch 2221 on the backlight module 100 is located in the first notch 111 on the backlight module 100.
  • the second notch 2221 has the same shape as the first notch 111, that is, the second notch 2221 is rectangular, and the shape of the second notch 102a may also be different from the first notch 101a.
  • the display device 10 provided by the embodiment of the present disclosure differs from FIG. 7 in that the first notch 111 and the second notch 2212 are both trapezoidal, which can make the first light source placement area and The density of the first light source group 13 and the second light source group 14 respectively placed in the second light source placement area is greater, which enhances the display effect of the display device 10.
  • the backlight module and the display device provided by the embodiments of the present disclosure are provided with a first notch on the back plate of the backlight module, wherein the first notch corresponds to the second notch provided on the display panel, and
  • the light source group is placed on the back plate at both ends of the first notch, which reduces the size of the lower frame of the display device, increases the screen-to-body ratio of the display device, and makes the light incident on the display panel from the backlight module more uniform and enhances
  • the differentiated performance of the product enhances its market competitiveness.

Landscapes

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

Abstract

一种背光模组（100）及显示装置（10），背光模组（100）的背板（11）上设置有第一缺口（111），其中第一缺口（111）与设置于显示面板（200）上的第二缺口（2221）相对应，并将光源组（13,14）放置于位于第一缺口（111）两端的背板（11）上，降低了显示装置（10）的下边框尺寸，提高了屏占比，使得背光模组（100）入射至显示面板（200）中的光更为均匀，增强了产品的差异化性能，提升了产品的市场竞争力。

Description

背光模组及显示装置 技术领域
本揭示涉及显示技术领域，尤其涉及一种背光模组及显示装置。
 背景技术
随着液晶显示技术的发展，特别是全面屏技术的发展，显示装置的屏占比在不断地提高，液晶显示模组（LCD Module，LCM）的下边框也越来越小，目前，在显示装置的下边框采用覆晶薄膜（Chip On film，COF）技术以缩小下边框宽度是实现显示装置具有高屏占比的方法之一，因此，将显示装置的背光模组(Backlight Module，BLU)的下边框改窄，以提高显示装置的屏占比的需求越来越明显。
如图1A、图1B所示分别为现有的背光模组100＇以及显示装置10主视结构示意图，所述背光模组100＇包括背板11＇、导光板12＇以及光源组13＇；所述显示装置10＇包括所述背光模组100＇及显示面板200＇，所述显示面板200＇包括阵列基板21＇、与所述阵列基板21＇相对设置的彩膜基板22＇以及绑定在所述阵列基板21＇上的覆晶薄膜23＇，其中，所述阵列基板21＇包括显示区211＇以及与所述显示区211＇相邻的非显示区212＇。所述显示装置10＇的下边框（LCM outline）高度d为所述显示区（CELL VA）211＇的下边缘至所述显示装置10＇的下边缘的距离，即所述显示区211＇与所述背光模组100＇的可视区（BLU VA）之间的距离a、所述背光模组100＇的可视区与所述背光模组100＇的下边缘（BLU outline）之间的距离b及所述背光模组100＇的下边缘与所述显示装置10＇的下边缘之间的距离c的和，即d=a+b+c。
现阶段的所述显示装置10＇主要是通过增加所述光源组13＇的排布密度以减小混光距离来使得其下边框变窄，即通过减小所述背光模组100＇的可视区与所述背光模组100＇的边缘之间的距离b的值，以提高屏占比，但是随着下边框越来越窄，所述光源组13＇排布的空间有限，导致所述光源组13＇的排布密度无法增加，因此无法通过增加所述光源组13＇的排布密度（即增加b值）来使得所述显示装置10＇的下边框尺寸变小，继而无法提高屏占比。
因此，需要提供一种新的背光模组及显示装置，来解决上述技术问题。
 技术问题
本揭示提供一种背光模组及显示装置，解决了随着下边框越来越窄，光源组的排布空间有限，导致光源组的排布密度无法增加，因此无法通过增加光源组的排布密度来使得显示装置的下边框尺寸变小，继而无法提高屏占比的技术问题。
 技术解决方案
为解决上述问题，本揭示提供的技术方案如下：
本揭示实施例提供一种背光模组，包括：
背板；
导光板，设置于所述背板上，所述导光板具有入光面与出光面；
所述背板靠近所述导光板的所述入光面的一端设置有第一缺口，所述第一缺口将位于所述第一缺口两侧的所述背板分为第一光源放置区与第二光源放置区，其中，所述第一光源放置区安装有第一光源组，所述第二光源放置区安装有第二光源组，所述第一光源组与所述第二光源组的出光侧均与所述导光板的所述入光面相对设置。
在本揭示实施例提供的背光模组中，所述第一缺口的宽度为所述背板的宽度的1%~50%。
在本揭示实施例提供的背光模组中，所述导光板靠近所述入光面的边缘设置有第一凹陷部与第二凹陷部，所述第一凹陷部与所述第二凹陷部之间形成有一凸部，所述凸部的侧面与所述第一缺口相对应。
在本揭示实施例提供的背光模组中，所述第一凹陷部包括第一垂直面与第一倾斜面，所述第二凹陷部包括第二垂直面与第二倾斜面，所述第一倾斜面与所述第二倾斜面均连接于所述凸部的边缘。
在本揭示实施例提供的背光模组中，所述第一倾斜面与所述第一垂直面之间形成的第一夹角为非锐角，所述第二倾斜面与所述第二垂直面之间形成的第二夹角为非锐角。
在本揭示实施例提供的背光模组中，所述第一夹角为90°~135°，所述第二夹角为90°~135°。
在本揭示实施例提供的背光模组中，所述凸部的边缘为直线形或圆弧形。
在本揭示实施例提供的背光模组中，所述第一光源组包括多个沿其长度方向均匀间隔设置的LED灯，所述第二光源组包括多个沿其长度方向均匀间隔设置的LED灯。
在本揭示实施例提供的背光模组中，所述背光模组还包括：
设置于所述导光板的所述出光面一侧的光学膜片；
设置于所述导光板背离所述出光面一侧的反射片；
设置于所述背板上的胶框。
本揭示实施例提供一种显示装置，包含上述背光模组以及显示面板，所述显示面板包括阵列基板、与所述阵列基板相对设置的彩膜基板以及绑定在所述阵列基板上的覆晶薄膜；
所述阵列基板包括显示区以及与所述显示区相邻的非显示区；
其中所述非显示区远离所述显示区的一端设置有第二缺口，所述第二缺口与所述第一缺口相对应，所述覆晶薄膜绑定于靠近所述第二缺口的第一边缘的所述非显示区内，所述覆晶薄膜依次穿过所述第二缺口与所述第一缺口以弯折至所述背光模组的背部。
在本揭示实施例提供的显示装置中，所述覆晶薄膜的弯折顶点位于所述第一缺口与所述第二缺口内。
在本揭示实施例提供的显示装置中，所述第二缺口在所述背光模组上的正投影位于所述第一缺口在所述背光模组上的正投影之外。
 有益效果
本揭示的有益效果为：本揭示提供的背光模组及显示装置，通过在背光模组的背板上设置第一缺口，其中第一缺口与设置于显示面板上的第二缺口相对应，并将光源组放置于位于第一缺口两端的背板上，降低了显示装置的下边框的尺寸，提高了显示装置的屏占比，同时使得背光模组入射至显示面板中的光更为均匀，增强了产品的差异化性能，提升了产品的市场竞争力。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是揭示的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1A为现有技术的背光模组的主视结构示意图；
图1B为现有技术的显示装置的主视结构示意图；
图2为本揭示实施例一提供的一种背光模组的主视结构示意图；
图3为本揭示实施例一提供的一种导光板的主视结构示意图；
图4A为本揭示实施例一提供的另一种导光板的主视结构示意图；
图4B为图4A中的导光板的侧视结构示意图；
图5A为本揭示实施例一提供的一种第一光源组的结构示意图；
图5B为本揭示实施例一提供的一种第二光源组的结构示意图；
图6为本揭示实施例一提供的又一种导光板的形状结构示意图；
图7为本揭示实施例二提供的一种显示装置的结构示意图；
图8为本揭示实施例二提供的另一种显示装置的结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本揭示可用以实施的特定实施例。本揭示所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本揭示，而非用以限制本揭示。在图中，结构相似的单元是用以相同标号表示。
本揭示针对现有技术的背光模组及显示装置，随着下边框越来越窄，光源组的排布空间有限，导致光源组的排布密度无法增加，因此无法通过增加光源组的排布密度来使得显示屏的下边框变得更窄的技术问题，本实施例能够解决该缺陷。
实施例一
如图2所示，本揭示实施例提供的背光模组100包括：
背板11；
导光板12，设置于所述背板11上，所述导光板12具有入光面121与出光面122，其中所述入光面121位于所述导光板12的侧面，所述出光面121位于所述导光板12的上方；
所述背板11靠近所述导光板12的所述入光面121的一端设置有第一缺口111，所述第一缺口111将位于所述第一缺口111两侧的所述背板11分为第一光源放置区与第二光源放置区，其中，所述第一光源放置区安装有第一光源组13，所述第二光源放置区安装有第二光源组14，所述第一光源组13与所述第二光源组14的出光侧均与所述导光板12的所述入光面121相对设置。
所述第一缺口111的形状为矩形，同时，所述第一缺口111的宽度为所述背板11的宽度的1%~50%，一方面，所述第一缺口111的宽度需满足覆晶薄膜（Chip On Flex, or, Chip On Film，COF）能够穿过所述第一缺口111进行弯折；另一方面能够为所述第一光源放置区与第二光源放置区内分别放置所述第一光源组13与第二光源组14留有足够的空间，使得所述背光模组100能够为显示面板提供足够强的光线。
如图3所示为本揭示实施例提供的导光板12的主视结构示意图，所述导光板12的形状为矩形，所述第一光源组13与所述第二光源组14分别设置于所述导光板12的两侧，并与所述导光板12的入光面121的部分区域相对设置，所述第一光源组13与所述第二光源组14发出的光线射入该区域；然而所述第一光源组13与所述第二光源组14未保持相对的所述入光面121的其他部分区域未有光线射入，容易造成射入所述导光板12内的光线不均匀的情况发生。
优选地，如图4A所示，本揭示实施例提供的导光板12与图3的区别为：所述导光板12靠近所述入光面121的边缘设置有第一凹陷部123与第二凹陷部124，所述第一凹陷部123与所述第二凹陷部124之间形成有一凸部125，所述凸部125位于所述导光板12的中间位置，然而所述第一凹陷部123、第二凹陷部124以及所述凸部125的位置并不局限于此，例如，所述第一凹陷部123与所述第二凹陷部124可放置于所述导光板12的内侧。
如图4B所示，所述第一凹陷部123包括第一垂直面1231与第一倾斜面1232，所述第二凹陷部124包括第二垂直面1241与第二倾斜面1242，所述第一倾斜面1232与所述第二倾斜面1242均连接于所述凸部125的边缘1251，其中所述第一垂直面1231与所述导光板12的所述出光面122相互垂直，同样地，所述第二垂直面1241与所述导光板的所述出光面122相互垂直，所述第一垂直面1231与所述第二垂直面1241可位于同一平面，也可位于不同平面，本揭示实施例不应以此为限。
所述第一倾斜面1232与所述第一垂直面1231之间形成第一夹角α1，所述第一夹角α1为非锐角，所述第二倾斜面1242与所述第二垂直面1241之间形成的第二夹角α2，所述第二夹角α2为非锐角。优选的，所述第一夹角α1的大小为90°~135°，所述第二夹角α2为90°~135°，以使所述第一光源组13、所述第二光源组14发出的光线射入至所述凸部125内，进而使得所述第一光源组13、所述第二光源组14射入至所述导光板12的光线分布均匀，以获得更好的光学品味。在本揭示实施例中，所述第一夹角α1与所述第二夹角α2的大小可相同也可不同。
进一步地，如图5A、图5B所示，所述第一光源组13包括多个沿其长度方向均匀间隔设置的LED灯131，所述LED灯131设置于柔性印刷电路板132上，所述印刷电路板132分为垂直段与倾斜段，所述垂直段与所述第一垂直面1231相对，所述倾斜段与所述第一倾斜面1232相对，所述垂直段与所述倾斜段的夹角等于所述第一夹角α1；所述第二光源组14包括多个沿其长度方向均匀间隔设置的LED灯141，所述LED灯141设置于柔性印刷电路板142上，所述印刷电路板142同样分为垂直段与倾斜段，所述垂直段与所述第二垂直面1241相对，所述倾斜段与所述第二倾斜面1242相对，所述垂直段与所述倾斜段的夹角等于所述第二夹角α2，所述第一光源组13与所述第二光源组14各区段的LED灯的数量依据其对应的平面宽度而定。
如图4A、图4B所示，所述凸部125的边缘1251为直线形，但本揭示实施例不应局限于所述凸部125的边缘1251的形状，例如，如图6所示，所述凸部125的边缘1251的形状为向所述导光板12内延伸的圆弧形，可进一步提高所述第一缺口111的高度，进而使得显示装置的下边框进一步变窄。
所述背光模组100还包括：设置于所述导光板12的所述出光面122一侧的光学膜片；设置于所述导光板12背离所述出光面122一侧的反射片；设置于所述背板11上的胶框等，在此不再一一详细描述。
实施例二
如图7所示，本揭示实施例提供的显示装置10，包括上述实施例一提供的所述背光模组100以及显示面板200，所述显示面板200包括阵列基板21、与所述阵列基板21相对设置的彩膜基板22以及绑定在所述阵列基板21上的覆晶薄膜23，其中，所述阵列基板21包括显示区211以及与所述显示区211相邻的非显示区212，所述阵列基板21和所述彩膜基板22之间形成台阶区，所述台阶区即所述阵列基板21的非显示区212。所述台阶区远离所述显示区211的一端设置有第二缺口2221，所述覆晶薄膜23绑定于靠近所述第二缺口2221的第一边缘的所述非显示区212内，所述覆晶薄膜23依次穿过所述第二缺口2221与所述第一缺口111以弯折至所述背光模组100的背部。
同样地，所述显示装置10的下边框（LCM outline）高度d为所述显示区（CELL VA）211至所述显示装置10的下边缘的距离，即所述显示区211与所述背光模组100的可视区之间的距离a、所述背光模组100的可视区（BLU VA）与所述背光模组100的下边缘之间的距离b及所述背光模组100的下边缘（BLU outline）与所述显示装置10的下边缘之间的距离c的和，即d=a+b+c，由于所述覆晶薄膜23的弯折顶点D位于所述第一缺口111和所述第二缺口2221外，优选地，所述覆晶薄膜23的弯折顶点D可位于所述第一缺口111和所述第二缺口2221内，因此所述背光模组100的边缘与所述显示装置10的边缘之间的距离c的值相比于传统技术的显示装置中的c值可减小（c值可为0），从而使得本揭示实施例中的所述显示装置10的下边框尺寸相对于传统技术中的显示装置下边框减小，从而进一步实现窄边框与高屏占比。
所述第二缺口2221与所述第一缺口111相对应，一般地，所述第二缺口2221在所述背光模组100上的正投影位于所述第一缺口111在所述背光模组100上的正投影之外，以保护所述显示面板200。所述第二缺口2221与所述第一缺口111的形状相同，即所述第二缺口2221为矩形，所述第二缺口102a的形状也可以与第一缺口101a不同。
如图8所示，本揭示实施例提供的显示装置10，与图7的区别在于，所述第一缺口111与所述第二缺口2212均为梯形，可使得所述第一光源放置区与所述第二光源放置区分别放置的所述第一光源组13与所述第二光源组14的密度更大，增强所述显示装置10的显示效果。
有益效果为：本揭示实施例提供的背光模组及显示装置，通过在背光模组的背板上设置第一缺口，其中第一缺口与设置于显示面板上的第二缺口相对应，并将光源组放置于位于第一缺口两端的背板上，降低了显示装置的下边框尺寸，提高了显示装置的屏占比，同时使得背光模组入射至显示面板中的光更为均匀，增强了产品的差异化性能，提升了产品的市场竞争力。
综上所述，虽然本揭示已以优选实施例揭露如上，但上述优选实施例并非用以限制本揭示，本领域的普通技术人员，在不脱离本揭示的精神和范围内，均可作各种更动与润饰，因此本揭示的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种背光模组，包括：
    背板；以及
    导光板，设置于所述背板上，所述导光板具有入光面与出光面；
    所述背板靠近所述导光板的所述入光面的一端设置有第一缺口，所述第一缺口将位于所述第一缺口两侧的所述背板分为第一光源放置区与第二光源放置区，所述第一缺口的形状为矩形，其中，所述第一光源放置区安装有第一光源组，所述第二光源放置区安装有第二光源组，所述第一光源组与所述第二光源组的出光侧均与所述导光板的所述入光面相对设置。
  2. 根据权利要求1所述的背光模组，其中所述第一缺口的宽度为所述背板的宽度的1%~50%。
  3. 根据权利要求1所述的背光模组，其中所述导光板靠近所述入光面的边缘设置有第一凹陷部与第二凹陷部，所述第一凹陷部与所述第二凹陷部之间形成有一凸部，所述凸部的侧面与所述第一缺口相对应。
  4. 根据权利要求3所述的背光模组，其中所述第一凹陷部包括第一垂直面与第一倾斜面，所述第二凹陷部包括第二垂直面与第二倾斜面，所述第一倾斜面与所述第二倾斜面均连接于所述凸部的边缘。
  5. 根据权利要求4所述的背光模组，其中所述第一倾斜面与所述第一垂直面之间形成的第一夹角为非锐角，所述第二倾斜面与所述第二垂直面之间形成的第二夹角为非锐角。
  6. 根据权利要求5所述的背光模组，其中所述第一夹角为90°~135°，所述第二夹角为90°~135°。
  7. 根据权利要求3所述的背光模组，其中所述凸部的边缘为直线形或圆弧形。
  8. 根据权利要求3所述的背光模组，其中所述凸部位于所述导光板的中间位置。
  9. 一种背光模组，包括：
    背板；以及
    导光板，设置于所述背板上，所述导光板具有入光面与出光面；
    所述背板靠近所述导光板的所述入光面的一端设置有第一缺口，所述第一缺口将位于所述第一缺口两侧的所述背板分为第一光源放置区与第二光源放置区，其中，所述第一光源放置区安装有第一光源组，所述第二光源放置区安装有第二光源组，所述第一光源组与所述第二光源组的出光侧均与所述导光板的所述入光面相对设置。
  10. 根据权利要求9所述的背光模组，其中所述第一缺口的宽度为所述背板的宽度的1%~50%。
  11. 根据权利要求9所述的背光模组，其中所述导光板靠近所述入光面的边缘设置有第一凹陷部与第二凹陷部，所述第一凹陷部与所述第二凹陷部之间形成有一凸部，所述凸部的侧面与所述第一缺口相对应。
  12. 根据权利要求11所述的背光模组，其中所述第一凹陷部包括第一垂直面与第一倾斜面，所述第二凹陷部包括第二垂直面与第二倾斜面，所述第一倾斜面与所述第二倾斜面均连接于所述凸部的边缘。
  13. 根据权利要求12所述的背光模组，其中所述第一倾斜面与所述第一垂直面之间形成的第一夹角为非锐角，所述第二倾斜面与所述第二垂直面之间形成的第二夹角为非锐角。
  14. 根据权利要求13所述的背光模组，其中所述第一夹角为90°~135°，所述第二夹角为90°~135°。
  15. 根据权利要求12所述的背光模组，其中所述凸部的边缘为直线形或圆弧形。
  16. 根据权利要求9所述的背光模组，其中所述第一光源组包括多个沿其长度方向均匀间隔设置的LED灯，所述第二光源组包括多个沿其长度方向均匀间隔设置的LED灯。
  17. 根据权利要求9所述的背光模组，其特征在于，所述背光模组还包括：
    设置于所述导光板的所述出光面一侧的光学膜片；
    设置于所述导光板背离所述出光面一侧的反射片；以及
    设置于所述背板上的胶框。
  18. 一种显示装置，包含权利要求9所述的背光模组，以及显示面板，所述显示面板包括阵列基板、与所述阵列基板相对设置的彩膜基板以及绑定在所述阵列基板上的覆晶薄膜；
    所述阵列基板包括显示区以及与所述显示区相邻的非显示区；
    其中所述非显示区远离所述显示区的一端设置有第二缺口，所述第二缺口与所述第一缺口相对应，所述覆晶薄膜绑定于靠近所述第二缺口的第一边缘的所述非显示区内，所述覆晶薄膜依次穿过所述第二缺口与所述第一缺口以弯折至所述背光模组的背部。
  19. 根据权利要求18所述的显示装置，其中所述覆晶薄膜的弯折顶点位于所述第一缺口与所述第二缺口内。
  20. 根据权利要求18所述的显示装置，其中所述第二缺口在所述背光模组上的正投影位于所述第一缺口在所述背光模组的正投影之外。
PCT/CN2019/087145 2019-03-15 2019-05-16 背光模组及显示装置 Ceased WO2020186616A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/622,936 US11340494B2 (en) 2019-03-15 2019-05-16 Backlight module and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910196748.6 2019-03-15
CN201910196748.6A CN109870849B (zh) 2019-03-15 2019-03-15 背光模组及显示装置

Publications (1)

Publication Number Publication Date
WO2020186616A1 true WO2020186616A1 (zh) 2020-09-24

Family

ID=66920510

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/087145 Ceased WO2020186616A1 (zh) 2019-03-15 2019-05-16 背光模组及显示装置

Country Status (3)

Country Link
US (1) US11340494B2 (zh)
CN (1) CN109870849B (zh)
WO (1) WO2020186616A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110007518B (zh) * 2019-04-15 2024-02-09 武汉华星光电技术有限公司 背光模组及显示装置
CN112289185B (zh) * 2020-10-26 2021-11-23 武汉华星光电半导体显示技术有限公司 显示模组
CN116047810B (zh) * 2022-12-30 2024-09-20 厦门天马微电子有限公司 背光模组及显示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003069221A1 (en) * 2002-02-12 2003-08-21 Matsushita Electric Industrial Co., Ltd. Lighting device, and liquid crystal display device using this lighting device
KR20050115463A (ko) * 2004-06-03 2005-12-08 삼성에스디아이 주식회사 휘도를 개선한 액정표시장치
CN102568315A (zh) * 2010-12-23 2012-07-11 三星电子株式会社 具有热保护背光组件的显示设备
CN202992930U (zh) * 2012-12-31 2013-06-12 京东方科技集团股份有限公司 背光模组及液晶显示装置
US20140362327A1 (en) * 2013-06-07 2014-12-11 Japan Display Inc. Liquid crystal display device
CN108663861A (zh) * 2018-06-22 2018-10-16 Oppo广东移动通信有限公司 一种液晶显示装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI300116B (en) * 2003-09-05 2008-08-21 Hon Hai Prec Ind Co Ltd A luminous source for reading in the dark
KR20070100974A (ko) * 2005-02-18 2007-10-15 미네베아 가부시키가이샤 면상 조명 장치
KR100638874B1 (ko) * 2005-07-06 2006-10-27 삼성전기주식회사 Ｌｅｄ 광원이 도광판에 삽입된 백라이트 장치의광원-도광판 구조 및 이를 포함하는 백라이트 장치
JP2008015288A (ja) * 2006-07-07 2008-01-24 Hitachi Displays Ltd 液晶表示装置
JP2008211023A (ja) * 2007-02-27 2008-09-11 Citizen Holdings Co Ltd フレキシブル回路基板実装体
KR101621535B1 (ko) * 2008-12-04 2016-05-17 엘지디스플레이 주식회사 백라이트 유닛 및 이를 구비한 액정표시장치
TWI370302B (en) * 2008-12-25 2012-08-11 Au Optronics Corp A light guide plate having lateral optical structures and a backlight module having the light guide plate
JP5294080B2 (ja) * 2009-07-27 2013-09-18 日本精機株式会社 表示装置
KR20120080853A (ko) * 2011-01-10 2012-07-18 삼성모바일디스플레이주식회사 디스플레이 모듈
CN202165938U (zh) * 2011-07-14 2012-03-14 深圳市华星光电技术有限公司 一种背光模组及使用该背光模组的液晶显示装置
TWI468802B (zh) * 2011-11-10 2015-01-11 Au Optronics Corp 背光模組
CN202521499U (zh) * 2012-04-06 2012-11-07 北京京东方光电科技有限公司 导光板、背光源及液晶显示装置
CN203162732U (zh) * 2012-11-13 2013-08-28 青岛海信电器股份有限公司 背光模组
KR20140102793A (ko) * 2013-02-14 2014-08-25 삼성디스플레이 주식회사 백라이트 어셈블리 및 이를 포함하는 표시 장치
CN104456425B (zh) * 2013-09-13 2017-09-19 扬升照明股份有限公司 面光源
KR20160148105A (ko) * 2015-06-15 2016-12-26 삼성디스플레이 주식회사 표시장치
CN205231068U (zh) * 2015-12-28 2016-05-11 昆山维信诺科技有限公司 Oled显示面板结构
CN105629370A (zh) * 2016-01-05 2016-06-01 京东方光科技有限公司 一种导光板、背光模组及显示装置
CN105759340A (zh) * 2016-03-04 2016-07-13 京东方科技集团股份有限公司 一种导光板、背光模组及显示装置
US20190004244A1 (en) * 2017-06-30 2019-01-03 Wuhan China Star Optoelectronics Technology Co., Ltd. Liquid crystal display, backlight module and method for assembling the same
CN108761627A (zh) * 2018-05-22 2018-11-06 武汉华星光电技术有限公司 异形屏面板

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003069221A1 (en) * 2002-02-12 2003-08-21 Matsushita Electric Industrial Co., Ltd. Lighting device, and liquid crystal display device using this lighting device
KR20050115463A (ko) * 2004-06-03 2005-12-08 삼성에스디아이 주식회사 휘도를 개선한 액정표시장치
CN102568315A (zh) * 2010-12-23 2012-07-11 三星电子株式会社 具有热保护背光组件的显示设备
CN202992930U (zh) * 2012-12-31 2013-06-12 京东方科技集团股份有限公司 背光模组及液晶显示装置
US20140362327A1 (en) * 2013-06-07 2014-12-11 Japan Display Inc. Liquid crystal display device
CN108663861A (zh) * 2018-06-22 2018-10-16 Oppo广东移动通信有限公司 一种液晶显示装置

Also Published As

Publication number Publication date
CN109870849A (zh) 2019-06-11
CN109870849B (zh) 2021-04-02
US11340494B2 (en) 2022-05-24
US20210364853A1 (en) 2021-11-25

Similar Documents

Publication Publication Date Title
KR101340604B1 (ko) 백라이트 유닛 및 이를 구비한 액정표시장치모듈
EP1913435B1 (en) Backlight unit and liquid crystal display having the same
KR101579815B1 (ko) 액정 표시 장치
US8556442B2 (en) Backlight unit and display apparatus using the same
KR20160022224A (ko) 도광판 및 이를 포함하는 백라이트 유닛
US9684109B2 (en) Light guide plate, lighting device, display device, and television device
US10712593B2 (en) Viewing angle control film and liquid crystal display device including the same
US20150226913A1 (en) Lighting device, display device and television device
KR102222297B1 (ko) 균일한 휘도가 가능한 반사판 및 이를 구비한 액정표시소자
US20230213804A1 (en) Multi-screen and display device
WO2020211310A1 (zh) 背光模组及显示装置
WO2020186616A1 (zh) 背光模组及显示装置
KR20170076214A (ko) 백라이트 유닛 및 이를 포함하는 액정 표시 장치
KR102090457B1 (ko) 액정표시장치
US20150205036A1 (en) Lighting device, display device and television device
WO2022267110A1 (zh) 背光模组和显示装置
KR101415683B1 (ko) 액정표시장치
US9188729B2 (en) Prism sheet, backlight unit including the same, and method of manufacturing the same
CN101403834B (zh) 背光组件
CN109491146B (zh) 发光模组及其制造方法、直下式背光模组及显示装置
KR20090060067A (ko) 확산판 및 이를 포함하는 액정표시장치용 백라이트 유닛
KR102142482B1 (ko) 광학시트 및 이를 포함하는 액정표시장치모듈
CN103389539A (zh) 导光板以及使用该导光板的液晶显示装置
WO2020248422A1 (zh) 背光模组及显示装置
KR101793132B1 (ko) 광학시트 및 이를 포함한 백라이트 유닛 그리고 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: 19920319

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19920319

Country of ref document: EP

Kind code of ref document: A1