WO2024159702A1 - 背光模组及其制备方法和显示面板 - Google Patents

背光模组及其制备方法和显示面板 Download PDF

Info

Publication number
WO2024159702A1
WO2024159702A1 PCT/CN2023/104728 CN2023104728W WO2024159702A1 WO 2024159702 A1 WO2024159702 A1 WO 2024159702A1 CN 2023104728 W CN2023104728 W CN 2023104728W WO 2024159702 A1 WO2024159702 A1 WO 2024159702A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
backlight
light
backlight module
laminated structure
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/CN2023/104728
Other languages
English (en)
French (fr)
Inventor
章泽
周伟
朱磊
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
Publication of WO2024159702A1 publication Critical patent/WO2024159702A1/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
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133325—Assembling processes

Definitions

  • the present application belongs to the field of display technology, and in particular, relates to a display panel and a manufacturing method thereof, and a display device.
  • Mini Light Emitting Diode As a light source, Mini Light Emitting Diode (MLED) has the advantages of small size, long life and high efficiency. It can be used continuously for up to 100,000 hours. MLED technology has great potential to become one of the development directions of the next generation of display technology.
  • MLED can be used as a backlight or a direct display.
  • MLED is usually used as a backlight in liquid crystal displays (LCD).
  • LCD liquid crystal displays
  • the structure of LCD is to place a liquid crystal box between two parallel glass substrates, set a thin film transistor (TFT) on the lower substrate glass, and set a color filter on the upper substrate glass.
  • TFT thin film transistor
  • the signal and voltage on the TFT are changed to control the rotation direction of the liquid crystal molecules, so as to control whether the polarized light of each pixel is emitted or not to achieve the display purpose.
  • MLED as a backlight will use a denser chip arrangement to reduce the mixing distance and achieve an ultra-thin light source module.
  • the embodiments of the present application provide a backlight module and a preparation method thereof, and a display panel, which reduce the assembly tolerance between the light board and the backlight film, improve the visual effect and display effect of the edge of the backlight module, and thus enhance the picture quality of the display panel.
  • an embodiment of the present application provides a backlight module, including:
  • a light panel disposed on one side of the back panel
  • a backlight film is arranged on a side of the light board away from the back board;
  • the orthographic projections of the backlight film and the light board on the back plate coincide with the back plate.
  • an embodiment of the present application further provides a display panel, including:
  • the backlight module as described in any one of the above items;
  • the display module is arranged on one side of the backlight module.
  • the present application also provides a method for preparing a backlight module, comprising:
  • the back panel substrate, the light panel substrate and the backlight film substrate are stacked in sequence to form a laminated substrate;
  • the periphery of the laminated substrate is cut along the laminating direction to form a laminated structure including a back plate, a light plate and a backlight film, wherein the orthographic projections of the backlight film and the light plate on the back plate overlap with the back plate.
  • the backlight module, preparation method thereof and display panel of the embodiments of the present application by setting the orthographic projections of the light board and the backlight film on the back panel to coincide with the back panel, that is, setting the peripheries of the light board and the backlight film flush, the assembly tolerance between the light board and the backlight film can be reduced or avoided, and the phenomenon of bluing edges caused by misalignment of the backlight film and the light board can be reduced, thereby improving the visual effect and display effect of the edge of the backlight module, thereby enhancing the picture quality of the display panel; and the back panel is also flush with the edges of the light board and the backlight film, which can speed up the process compared to a bent back panel.
  • FIG. 1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application.
  • FIG2 is a schematic diagram of the cross-sectional structure of the display panel shown in FIG1 along line A-A.
  • FIG. 3 is a schematic diagram of a first structure of a backlight module provided in an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a second structure of a backlight module provided in an embodiment of the present application.
  • FIG5 is a schematic diagram of the cross-sectional structure of the backlight module shown in FIG4 along line B-B.
  • FIG. 6 is a schematic flow chart of a method for preparing a backlight module provided in an embodiment of the present application.
  • Figure 1 is a schematic diagram of the structure of the display panel provided in an embodiment of the present application
  • Figure 2 is a schematic diagram of the cross-sectional structure of the display panel shown in Figure 1 along A-A.
  • the display panel 1 includes a display module 10 and a backlight module 20.
  • the display module 10 and the backlight module 20 are stacked.
  • the display panel 1 has a light-emitting side
  • the display module 10 is arranged on the side of the backlight film group 20 facing the light-emitting side.
  • the display panel 1 is a liquid crystal display panel, that is, LCD.
  • the structure of LCD is to place a liquid crystal box between two parallel glass substrates, a thin film transistor is arranged on the lower substrate glass, and a color filter is arranged on the upper substrate glass.
  • the rotation direction of the liquid crystal molecules is controlled by changing the signal and voltage on the TFT, so as to control whether the polarized light of each pixel is emitted or not to achieve the display purpose, and the imaging of the display panel 1 is realized in combination with the light emitted by the backlight source.
  • the display module 10 is the upper glass substrate and the color filter thereon, the lower glass substrate and the thin film transistor thereon, and the liquid crystal box therebetween.
  • the backlight module 20 is used to provide a backlight source for the display module 10.
  • the light source of the backlight module 20 can be MLED.
  • MLED technology has great potential to become one of the development directions of the next generation of display technology.
  • LTPS Low Temperature Poly-silicon
  • MLED has obvious advantages in power consumption/HDR (High Dynamic Range Imaging) standard/CR/brightness/product reliability, although it still needs to be improved in thickness and response time.
  • HDR High Dynamic Range Imaging
  • the embodiment of the present application improves the structure of the backlight module 20 , which will be described below from two aspects: the structural composition and the preparation method of the backlight module 20 .
  • FIG. 3 is a schematic diagram of the first structure of the backlight module provided in the embodiment of the present application.
  • the backlight module 20 includes a back plate 21, a light plate 22 and a backlight film 23, wherein the light plate 22 is arranged on one side of the back plate 21, and the backlight film 23 is arranged on the side of the light plate 22 away from the back plate 21.
  • the orthographic projections of the backlight film 23 and the light plate 22 on the back plate 21 overlap with the back plate 21.
  • the backlight module 20 provided in the embodiment of the present application, by setting the orthographic projections of the light board 22 and the backlight film 23 on the back plate 21 to coincide with the back plate 21, that is, setting the peripheries of the light board 22 and the backlight film 23 flush, the assembly tolerance between the light board 22 and the backlight film 23 can be reduced or avoided, and the phenomenon of bluing of the edges caused by the misalignment of the backlight film 23 and the light board 22 can be reduced, thereby improving the visual effect and display effect of the edge of the backlight module 20, thereby enhancing the picture quality of the display panel 1; and the back plate 21 is also flush with the edges of the light board 22 and the backlight film 23, which can speed up the process compared to a bent back plate.
  • the back plate 21 is a supporting component or a bearing component of the backlight module 20.
  • the back plate 21 can be made of a hard metal material to ensure that the back plate 21 has sufficient strength and supporting function.
  • the back plate 21 can be made of a steel plate or an aluminum plate.
  • the light board 22 is the main light-emitting unit of the backlight module 20.
  • the light board 22 may include a light frame and light-emitting chips arranged thereon.
  • the light-emitting chips are arranged in an array on the light frame.
  • the light-emitting chips may be MLED chips.
  • the light board 22 is mounted on the back panel 21.
  • the light board 22 may be bonded to the back panel 21 by back panel glue.
  • the backlight film 23 determines the performance of the entire backlight module 20.
  • the brightness enhancement film with a prismatic microstructure can effectively improve the lighting brightness, uniformity and image contrast, and indirectly improve the power consumption performance of the backlight module.
  • the front view brightness of the liquid crystal module, or the axial brightness will be improved through a prism film, a reflective polarizer and a high reflectivity reflector.
  • there are two ways to increase the axial brightness first, improve the angular distribution of light and concentrate the light on the front view angle; second, reduce losses and increase the total light flux.
  • the backlight film 23 can mix light to make the light dispersed evenly; the backlight film 23 can also convert blue light into white light, etc.
  • Figure 4 is a schematic diagram of the second structure of the backlight module provided in the embodiment of the present application
  • Figure 5 is a schematic diagram of the cross-sectional structure of the backlight module along B-B shown in Figure 4.
  • the edge of the backlight module 20 is cut as a whole in the embodiment of the present application to reduce the tolerance gap between the backlight film 23 and the light board 22.
  • the back plate 21, the light board 22 and the backlight film 23 form a laminated structure 26, that is, the back plate 21, the light board 22 and the backlight film 23 are a whole, and the laminated structure 26 has four ends 260 opposite to each other.
  • the back plate 21, the light board 22 and the backlight film 23 can all be rectangular or square, so the three can be stacked and overlapped to obtain four ends 260 opposite to each other.
  • the backlight module 20 further includes a connecting plate 24 , which is disposed at at least one end 260 of the laminate structure 26 , and is used to connect the ends of the back plate 21 , the lamp plate 22 , and the backlight film 23 on the same side.
  • the connecting plate 24 can be made of metal material to enhance the connection strength of the end of the laminated structure 26.
  • the connecting plate 24 can be made of the same material as the back plate 21, such as a steel plate or an aluminum plate.
  • the thickness of the connecting plate 24 can be consistent with the thickness of the back plate 21. Of course, the thickness can also be considered consistent within a set error range such as 5%.
  • the back plate is usually bent to cover the light board and the backlight film, and the back plate is unevenly set, which will lead to insufficient strength of the backlight module as a whole.
  • the connecting plate 24 can be understood as a small connecting piece that is split from the back plate, which can not only enhance the overall strength of the backlight module 20, but also improve the overall optical taste of the edge.
  • the connecting plate 24 can cover part of the laminated structure 26, so that the back plate 21, the light plate 22 and the backlight film 23 in the laminated structure 26 are tightly connected, thereby improving the overall strength of the backlight module 20.
  • the connecting plate 24 includes a side plate 240, a top plate 241 and a bottom plate 242.
  • the side plate 240 is attached to the side wall 261 of the laminated structure 26, the top plate 241 is bent and connected to the side plate 240, and attached to the top wall 262 of the laminated structure 26; the bottom plate 242 is bent and connected to the side plate 240, arranged opposite to the top plate 241, and attached to the bottom wall 263 of the laminated structure 26.
  • the connecting plate 24 is U-shaped, and the U-shaped opening is clamped at the end 260 of the laminated structure 26.
  • a connecting glue 25 is arranged between the connecting plate 24 and the laminated structure 26.
  • the connecting glue 25 can be filled between the connecting plate 24 and the laminated structure 26 to play a buffering and connecting role, so that the connection between the connecting plate 24 and the laminated structure 26 is reliable, thereby enhancing the stability of the backlight module 20.
  • the connecting plate 24 may be provided at only one end 260 of the four ends 260 of the laminated structure 26.
  • the back plate 21, the light plate 22 and the backlight film 23 are stacked along the stacking direction Y, and the top plate 241 and the bottom plate 242 in the connecting plate 24 extend along the horizontal direction X perpendicular to the stacking direction Y of the laminated structure 26.
  • the lengths of the top plate 241 and the bottom plate 242 in the horizontal direction X are equal, but the equality here is not absolute. Due to manufacturing errors, the error between the length of the top plate 241 and the length of the bottom plate 242 can be considered equal within a set error range such as 5%.
  • the length of the top plate 241 and the length of the bottom plate 242 may also be unequal, for example, the length of the bottom plate 242 is greater than the length of the top plate 241, so that the stability of the load-bearing of the laminated structure 26 can be increased.
  • the connecting plate 24 is disposed at the end 260 of the laminated structure 26.
  • the ratio of the length of the top plate 241 to the length of the laminated structure 26 is within the range of 0.1, and/or the ratio of the length of the bottom plate 242 to the length of the laminated structure 26 is within the range of 0.1.
  • the length of the top plate 241 is 10 cm, which can enhance the overall strength of the backlight module 20 without affecting the display of the light source in the light board 22.
  • two connecting plates 24 may be provided at two of the four ends 260 of the stacked structure 26.
  • the two ends 260 may be adjacent ends 260, or opposite ends 260.
  • the two connecting plates 24 may be symmetrically arranged relative to the center line of the stacked structure 26 along the stacking direction Y, that is, the two U-shaped plates are oppositely disposed, and the U-shaped openings are opposite, which can enhance the stability of the backlight module 20 compared to the arrangement of a single connecting plate 24.
  • the connecting plates 24 may be provided at the upper end and the left end or the right end, respectively, or at the left end and the right end, respectively.
  • three connecting plates 24 may be provided at three of the four ends 260 of the stacked structure 26, two of the three ends 260 are arranged opposite to each other, and the other end 260 is adjacent to the two opposite ends 260.
  • connecting plates 24 may be provided at the upper end, the left end, and the right end, respectively, and the lower end may be left free to facilitate the arrangement of wires of the backlight module 20.
  • FIG. 6 is a schematic flow chart of a method for preparing a backlight module provided in an embodiment of the present application.
  • the present application embodiment provides a method for preparing a backlight module, comprising:
  • the first thing to do is to provide the finished backplane substrate, light board substrate and backlight film substrate.
  • the finished manufacturing means that only cutting is needed on the substrate to form the required size.
  • the MLED chip has been installed on the lamp frame.
  • the backlight film substrate multiple film materials have been stacked and bonded together.
  • the stacking direction of the above-mentioned substrates can be along the vertical direction.
  • the back panel substrate, the light panel substrate and the backlight film substrate are stacked in sequence to form a stacked substrate.
  • the periphery of the laminated substrate is cut along the stacking direction to form a laminated structure with neat edges.
  • the cut laminated structure includes a back panel, a light panel and a backlight film stacked in sequence, and the orthographic projections of the backlight film and the light panel on the back panel coincide with the back panel.
  • the light board and the backlight film are usually assembled, and then mounted on the backboard through the backboard adhesive, and the periphery of the backboard is bent to cover the light board and the backlight film.
  • the backlight module arranged in this way is likely to cause a large assembly tolerance of the light board and the backlight film, thereby affecting the quality of the edge of the backlight module.
  • the embodiment of the present application uniformly cuts the stacked laminated substrates to make the edges of the light board and the backlight film flush, thereby improving the edge display effect of the backlight module.
  • the backboard is also cut together with the light board and the backlight film, which can save process flow and speed up the preparation of the backlight module.
  • a connecting plate is provided at at least one end of the laminated structure to connect the end of the back plate, the end of the light plate and the end of the backlight film on the same side.
  • the laminated structure can have four ends opposite to each other.
  • a connecting plate can be provided at at least one end of the laminated structure to connect the end of the back panel, the end of the light panel and the end of the backlight film on the same side.
  • the connecting plate may be a U-shaped structure, and the U-shaped opening is clamped to at least one end of the laminated structure.
  • the connecting plate may include a side plate, a top plate, and a bottom plate.
  • the side plate may be vertically arranged, the top plate and the bottom plate are opposite and extend in parallel directions, the top plate and the side plate are bent and connected, and the bottom plate and the side plate are bent and connected.
  • a plate may be arranged at at least one end of the laminated structure, and the two ends of the plate may be bent to form a connecting plate including a top plate, a side plate, and a bottom plate connected in sequence, the top plate is attached to the top wall of the laminated structure, the side plate is attached to the side wall of the laminated structure, and the bottom plate is attached to the bottom wall of the laminated structure.
  • Only one connecting plate may be provided at one end of the laminated structure, two connecting plates may be provided at both ends of the laminated structure, or three connecting plates may be provided at three ends of the laminated structure.
  • the multiple connecting plates may be manufactured uniformly and installed at the ends of the laminated structure at the same time.
  • the stacked structure and the connecting plate may be filled with connecting glue, which plays a role of buffering and connecting to improve the overall strength and stability of the backlight module.
  • the assembly tolerance between the light board and the backlight film can be reduced or avoided, the phenomenon of bluing of the edge caused by the misalignment of the backlight film and the light board can be reduced, and the visual effect and display effect of the edge of the backlight module can be improved, thereby improving the picture quality of the display panel; and the back plate is also flush with the edge of the light board and the backlight film, which can speed up the process compared to the bent back plate.
  • the tolerance gap between the backlight film and the light board is reduced by stacking the entire back plate with the light board and the backlight film, and cutting the whole piece with a knife die. Then, the bottom back plate and the top backlight film are wrapped with a U-shaped connecting plate and double-sided tape, which can not only improve the overall strength of the backlight module, but also improve the overall optical quality of the edge.
  • first and second are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more features.

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（20）及其制备方法和显示面板（1），显示面板（1）包括背光模组组（20）。背光模组（20）包括：背板（21）；灯板（22），设置于背板（21）的一侧；以及背光膜（23），设置于灯板（22）背离背板（21）的一侧；其中，背光膜（23）和灯板（22）在背板（21）的正投影与背板（21）重合；减小或避免灯板（22）和背光膜（23）之间组装的公差，减少因背光膜（23）和灯板（22）对不齐造成的边缘发蓝的现象，改善背光模组（20）边缘的视觉和显示效果。

Description

背光模组及其制备方法和显示面板 技术领域
本申请属于显示技术领域，尤其涉及一种显示面板及其制备方法和显示装置。
 背景技术
迷你发光二极管（Mini Light Emitting Diode，MLED）作为光源，具有体积小、寿命长、效率高等优点，可连续使用长达10万个小时，MLED技术具有极大潜力成为下一代显示技术发展方向之一。
MLED既可以做背光使用，也可以作为直接显示。MLED做背光使用通常应用在液晶显示器（Liquid Crystal Display，LCD）中，LCD的构造是在两片平行的玻璃基板当中放置液晶盒，下基板玻璃上设置薄膜晶体管（Thin Film Transistor，TFT），上基板玻璃上设置彩色滤光片，通过TFT上的信号与电压改变来控制液晶分子的转动方向，从而达到控制每个像素点偏振光出射与否而达到显示目的。相比于传统的背光LED模组，MLED作为背光将采用更加密集的芯片排布来减少混光距离，做到超薄的光源模组。
 发明概述
然而，现有的MLED做背光源的显示面板中，由于背光膜的膜材较多，灯板与背光膜之间组装存在公差，影响背光模组边缘的视觉效果和显示效果。
本申请实施例提供一种背光模组及其制备方法和显示面板，减小灯板与背光膜之间组装的公差，改善背光模组边缘的视觉效果和显示效果，由此提升显示面板的画面品味。
第一方面，本申请实施例提供一种背光模组，包括：
背板；
灯板，设置于所述背板的一侧；以及
背光膜，设置于所述灯板背离所述背板的一侧；
其中，所述背光膜和所述灯板在所述背板的正投影与所述背板重合。
第二方面，本申请实施例还提供一种显示面板，包括：
如上任一项所述的背光模组；
显示模组，设置于所述背光模组的一侧。
第三方面，本申请实施例还提供一种背光模组的制备方法，包括：
将背板基材、灯板基材和背光膜基材依次层叠设置形成叠层基材；
沿层叠方向对所述叠层基材的周缘进行裁切，形成包括背板、灯板和背光膜的叠层结构，所述背光膜和所述灯板在所述背板的正投影与所述背板重合。
有益效果
本申请实施例的背光模组及其制备方法和显示面板中，通过将灯板和背光膜在背板的正投影设置为与背板重合，也即是将灯板和背光膜的周缘齐平设置，可以减小或避免灯板和背光膜之间组装的公差，减少因背光膜和灯板对不齐造成的边缘发蓝的现象，改善背光模组边缘的视觉效果和显示效果，由此提升显示面板的画面品味；并且，背板也与灯板和背光膜边缘齐平，相比于弯折形状的背板，可以加快工艺进程。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单的介绍。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对本领域技术人员来说，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。
为了更完整地理解本申请及其有益效果，下面将结合附图来进行说明。其中，在下面的描述中相同的附图标号表示相同部分。
图1为本申请实施例提供的显示面板的结构示意图。
图2为图1所示的显示面板沿A-A的剖面结构示意图。
图3为本申请实施例提供的背光模组的第一种结构示意图。
图4为本申请实施例提供的背光模组的第二种结构示意图。
图5为图4所示的背光模组沿B-B的剖面结构示意图。
图6为本申请实施例提供的背光模组的制备方法的流程示意图。
 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，而不是全部的实施例。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所获得的所有其他实施例，都属于本申请保护的范围。
请参阅图1和图2，图1为本申请实施例提供的显示面板的结构示意图，图2为图1所示的显示面板沿A-A的剖面结构示意图。显示面板1包括显示模组10和背光模组20，显示模组10和背光模组20层叠设置，比如显示面板1具有发光侧，显示模组10设置于背光膜组20朝向发光侧的一侧。示例性的，显示面板1为液晶显示面板，也即是LCD，LCD的构造是在两片平行的玻璃基板当中放置液晶盒，下基板玻璃上设置薄膜晶体管，上基板玻璃上设置彩色滤光片，通过TFT上的信号与电压改变来控制液晶分子的转动方向，从而达到控制每个像素点偏振光出射与否而达到显示目的，结合背光源发射的光线来实现显示面板1的成像。显示模组10也即是上述上玻璃基板以及其上的彩色滤光片、下玻璃基板以及其上的薄膜晶体管以及二者之间的液晶盒，背光模组20用于为显示模组10提供背光源，背光模组20的发光源可以采用MLED。
MLED技术具有极大潜力成为下一代显示技术发展的方向之一，随着中高端平板和笔记本电脑产品在MLED技术的推出，极大提升了LTPS（Low Temperature Poly-silicon，低温多晶硅）-LCD产品的暗态显示效果。MLED相较于OLED（Organic Light-Emitting Diode，有机发光半导体），尽管在厚度和响应时间上还有待提高，但在功耗/HDR（High Dynamic Range Imaging，高动态范围成像）标准/CR/亮度/产品信赖度上，都有明显优势。但是由于背光膜的膜材较多，灯板与背光膜之间组装存在公差，影响背光模组边缘的视觉效果和显示效果。
为了改善上述情况，本申请实施例对背光模组20的结构进行了改进，以下将分别从背光模组20的结构组成以及制备方法两个方面进行说明。
请结合图1和图2并参阅图3所示，图3为本申请实施例提供的背光模组的第一种结构示意图。背光模组20包括背板21、灯板22和背光膜23，灯板22设置在背板21的一侧，背光膜23的设置在灯板22背离背板21的一侧。其中，背光膜23和灯板22在背板21的正投影与背板21重合。
本申请实施例提供的背光模组20中，通过将灯板22和背光膜23在背板21的正投影设置为与背板21重合，也即是将灯板22和背光膜23的周缘齐平设置，可以减小或避免灯板22和背光膜23之间组装的公差，减少因背光膜23和灯板22对不齐造成的边缘发蓝的现象，改善背光模组20边缘的视觉效果和显示效果，由此提升显示面板1的画面品味；并且，背板21也与灯板22和背光膜23边缘齐平，相比于弯折形状的背板，可以加快工艺进程。
背板21是背光模组20的支撑器件或者说承载器件，背板21可以采用硬质金属材料制成，以保证背板21有足够的强度和支撑作用。比如，背板21可以采用钢板或铝板制作。
灯板22是背光模组20的主要发光单元，灯板22可以包括灯架以及设置在其上的发光芯片，发光芯片在灯架上呈阵列排布，发光芯片可以为MLED芯片。灯板22安装于背板21上，比如，可以通过背板胶将灯板22粘接在背板21上。
背光膜23决定了整个背光模组20的效能，其中具有棱形微结构的增亮膜，可以有效提升照明亮度、均匀度及影像对比度，并间接改善背光模组的耗电性能。在一定的光源输出下，将会通过棱镜膜、反射偏振片和高反射率反射片来提高液晶模组的正视亮度，或称轴向亮度。在不增加光源数量的情况下，要提高轴向亮度有两种途径：一，改善光线的角分布，将光线集中到正视角度上；二，减少损耗，提高总的出光光通量。背光膜23可以进行混光，以使光线分散均匀；背光膜23还可以将蓝光转化为白光等。
现有技术中，由于灯板与背光膜之间存在裁切公差、组装公差导致背光模组边缘未对齐，容易出现边缘蓝边、暗边等不良品味。
请结合图1至图3并参阅图4和图5所示，图4为本申请实施例提供的背光模组的第二种结构示意图，图5为图4所示的背光模组沿B-B的剖面结构示意图。本申请实施例为了解决上述问题，将背光模组20的边缘进行整体裁切，以减小背光膜23和灯板22之间的公差间隙。示例性的，背板21、灯板22和背光膜23形成叠层结构26，也即是背板21、灯板22和背光膜23作为一整体，叠层结构26具有两两相对的四个端部260。可以理解的是，背板21、灯板22和背光膜23可以均呈长方形或者正方形，因此，三者叠设并重合可以得到两两相对的四个端部260。
其中，背光模组20还包括连接板24，连接板24设置于叠层结构26的至少一端部260，连接板24用于连接同侧的背板21的端部、灯板22的端部和背光膜23的端部。
示例性的，连接板24可以采用金属材料，以增强叠层结构26端部的连接强度。比如，连接板24可以与背板21采用相同的材料，如钢板或铝板。连接板24的厚度可以与背板21的厚度一致，当然有设定误差范围如5%范围内也可以认为是厚度一致。现有技术中，背板通常会折弯包覆灯板和背光膜，背板设置不均一，会导致背光模组整体的强度不足。本申请实施例中，连接板24可以理解为是将背板拆分出的小的连接件，既能提升背光模组20整体的强度，又能改善边缘整体的光学品味。
其中，连接板24可以包覆部分叠层结构26，以使叠层结构26中的背板21、灯板22和背光膜23连接紧密，提高背光模组20整体的强度。示例性的，连接板24包括侧板240、顶板241和底板242。侧板240贴设于叠层结构26的侧壁261，顶板241与侧板240弯折连接，且贴设于叠层结构26的顶壁262；底板242与侧板240弯折连接，与顶板241相对设置，且贴设于叠层结构26的底壁263。可以理解的是，连接板24呈U形，U形的开口卡设在叠层结构26的端部260。
其中，连接板24和叠层结构26之间设置有连接胶25，连接胶25可以填充在连接板24和叠层结构26之间，起到缓冲和连接的作用，使得连接板24与叠层结构26之间连接可靠，增强背光模组20的稳定性。
示例性的，可以只在叠层结构26的四个端部260中的一个端部260设置连接板24。背板21、灯板22和背光膜23沿层叠方向Y叠设，连接板24中的顶板241和底板242沿与叠层结构26层叠方向Y垂直的水平方向X延伸，顶板241和底板242在水平方向X的长度相等，这里的相等并不绝对，由于制作误差，顶板241的长度和底板242的长度之间的误差在设定误差范围内如5%均可以认为二者长度相等。当然，顶板241的长度和底板242的长度也可以不相等，比如底板242的长度大于顶板241的长度，这样可以增加对于叠层结构26承载的稳定性。
其中，连接板24设置于叠层结构26的端部260，在水平方向X上，顶板241的长度占叠层结构26长度的比例在0.1范围内，和/或底板242的长度占叠层结构26长度的比例在0.1范围内。比如，叠层结构26的长度为100厘米时，顶板241的长度为10厘米，即可以增强背光模组20整体的强度，又不影响灯板22中光源的显示。
示例性的，可以在叠层结构26的四个端部260中的两个端部260设置两个连接板24，两个端部260可以是邻接的端部260，两个端部260也可以是相对的端部260。以两个相对设置的端部260为例，两个连接板24可以相对于叠层结构26沿层叠方向Y的中心线对称布置，也即两个U形板相对设置，且U形开口相对，相比于单个连接板24的设置，可以增强背光模组20的稳定性。以叠层结构26具有上端部、下端部、左端部和右端部为例，可以在上端部和左端部或者右端部分别设置连接板24，也可以在左端部和右端部分别设置连接板24。
示例性的，可以在叠层结构26的四个端部260中的三个端部260设置三个连接板24，三个端部260中的其中两个端部260相对设置，另一端部260邻接两个相对的端部260。以叠层结构26具有上端部、下端部、左端部和右端部为例，可以在上端部、左端部和右端部分别设置连接板24，而将下端部空余出来，以便于布置背光模组20的线材等。
为了更清楚的说明本申请实施例的背光模组20的结构组成，以下将从背光模组的制备方法的角度进行说明。
示例性的，请结合图1至图5并参阅图6所示，图6为本申请实施例提供的背光模组的制备方法的流程示意图。本申请实施例提供一种背光模组的制备方法，包括：
101、将背板基材、灯板基材和背光膜基材依次层叠设置形成叠层基材。
在制作背光模组的过程中，首先需要提供制作完成的背板基材、灯板基材和背光膜基材，这里的制作完成表示在基材上只需要进行切割来形成所需尺寸的状态，比如对于灯板基材来说，是已经将MLED芯片安装到灯架的状态。再比如对于背光膜基材来说，是已经将多个膜材层叠以及粘接到一起的状态。
上述基材的层叠方向可以沿竖直方向，在竖直方向上，依次将背板基材、灯板基材和背光膜基材层叠设置，形成层叠基材。
102、沿层叠方向对叠层基材的周缘进行裁切，形成包括背板、灯板和背光膜的叠层结构，并使背光膜和灯板在背板的正投影与背板重合。
沿层叠方向对叠层基材的周缘进行裁切，以形成边缘整齐的叠层结构，裁切完成的叠层结构包括依次叠设的背板、灯板和背光膜，背光膜和灯板在背板的正投影与背板重合。
需要说明的是，现有技术中，通常是将灯板和背光膜进行组装，然后在通过背板胶安装在背板上，背板的周缘进行弯折包覆灯板和背光膜。这样设置的背光模组容易导致灯板和背光膜的组装公差大，进而影响背光模组边缘的品味。
而本申请实施例为了改善上述情况，将层叠的叠层基材进行统一裁切，以使灯板和背光膜边缘齐平，进而提升背光模组的边缘显示效果，并且，背板也与灯板和背光膜一起裁切，可以节省工艺流程，加快背光模组的制备。
103、在叠层结构的至少一端部设置连接板，以连接同侧的背板的端部、灯板的端部和背光膜的端部。
叠层结构可以具有两两相对的四个端部，为了将叠层结构中的背板、灯板和背光膜连接紧密，可以在叠层结构的至少一端部设置连接板，以连接同侧的背板的端部、灯板的端部和背光膜的端部。
连接板可以为U形结构，U形开口卡接于叠层结构的至少一端部。连接板可以包括侧板、顶板和底板，侧板可以竖直设置，顶板和底板相对且沿平行方向延伸，顶板和侧板弯折连接，底板和侧板弯折连接。在制备过程中，可以在叠层结构的至少一端部设置一板材，将板材的两端折弯并形成包括依次连接的顶板、侧板和底板的连接板，顶板贴设于叠层结构的顶壁，侧板贴设于叠层结构的侧壁，底板贴设于叠层结构的底壁。
可以只在叠层结构的一端部设置一个连接板，也可以在叠层结构的两端部设置两个连接板，还可以在叠层结构的三个端部设置三个连接板，当设置多个连接板时，多个连接板可以统一制作，并同时安装到叠层结构的端部。
其中，叠层结构和连接板之间可以采用连接胶进行填充，连接胶起缓冲和连接作用，以提升背光模组的整体强度以及稳定性。
本申请实施例提供的背光模组的制备方法中，通过将灯板和背光膜在背板的正投影设置为与背板重合，也即是将灯板和背光膜的周缘齐平设置，可以减小或避免灯板和背光膜之间组装的公差，减少因背光膜和灯板对不齐造成的边缘发蓝的现象，改善背光模组边缘的视觉效果和显示效果，由此提升显示面板的画面品味；并且，背板也与灯板和背光膜边缘齐平，相比于弯折形状的背板，可以加快工艺进程。本申请实施例通过将整片背板与灯板和背光膜叠放在一起，通过刀模整体裁切，减小背光膜和灯板之间的公差间隙。然后将底部背板和最上方背光膜之间通过U形连接板和双面胶包贴起来，既能提升背光模组整体的强度，又能改善边缘整体光学品味。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请的描述中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个特征。
以上对本申请实施例所提供的背光模组及其制备方法和显示面板进行了详细介绍，本文中应用了具体个例对本申请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申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种背光模组，其中，包括：
    背板；
    灯板，设置于所述背板的一侧；以及
    背光膜，设置于所述灯板背离所述背板的一侧；
    其中，所述背光膜和所述灯板在所述背板的正投影与所述背板重合。
  2. 根据权利要求1所述的背光模组，其中，所述背板、所述灯板和所述背光膜形成叠层结构，所述叠层结构具有两两相对的四个端部；
    所述背光模组还包括：
    连接板，设置于所述叠层结构的至少一端部，所述连接板用于连接同侧的所述背板的端部、所述灯板的端部和所述背光膜的端部。
  3. 根据权利要求2所述的背光模组，其中，所述连接板包括：
    侧板，贴设于所述叠层结构的侧壁；
    顶板，与所述侧板弯折连接，且贴设于所述叠层结构的顶壁；
    底板，与所述侧板弯折连接，与所述顶板相对设置，且贴设于所述叠层结构的底壁。
  4. 根据权利要求3所述的背光模组，其中，所述顶板和所述底板均沿与所述叠层结构层叠方向垂直的水平方向延伸，所述顶板和所述底板在所述水平方向的长度相等。
  5. 根据权利要求3所述的背光模组，其特征在于，在水平方向上，所述顶板的长度占所述叠层结构的长度的比例在0.1范围内。
  6. 根据权利要求3所述的背光模组，其特征在于，在水平方向上，所述底板的长度占所述叠层结构的长度的比例在0.1范围内。
  7. 根据权利要求2所述的背光模组，其中，所述连接板和所述叠层结构之间设置有连接胶。
  8. 根据权利要求2所述的背光模组，其中，所述连接板的材料为金属材料。
  9. 根据权利要求2所述的背光模组，其中，所述层叠结构的相对两端部分别设置有所述连接板。
  10. 根据权利要求2所述的背光模组，其中，所述层叠结构的相邻两端部分别设置有所述连接板。
  11. 一种显示面板，其中，包括：
    背光模组，包括：背板；灯板，设置于所述背板的一侧；以及背光膜，设置于所述灯板背离所述背板的一侧；其中，所述背光膜和所述灯板在所述背板的正投影与所述背板重合；
    显示模组，设置于所述背光模组的一侧。
  12. 根据权利要求11所述的显示面板，其中，所述背板、所述灯板和所述背光膜形成叠层结构，所述叠层结构具有两两相对的四个端部；
    所述背光模组还包括：
    连接板，设置于所述叠层结构的至少一端部，所述连接板用于连接同侧的所述背板的端部、所述灯板的端部和所述背光膜的端部。
  13. 根据权利要求12所述的显示面板，其中，所述连接板包括：
    侧板，贴设于所述叠层结构的侧壁；
    顶板，与所述侧板弯折连接，且贴设于所述叠层结构的顶壁；
    底板，与所述侧板弯折连接，与所述顶板相对设置，且贴设于所述叠层结构的底壁。
  14. 根据权利要求13所述的显示面板，其中，所述顶板和所述底板均沿与所述叠层结构层叠方向垂直的水平方向延伸，所述顶板和所述底板在所述水平方向的长度相等。
  15. 根据权利要求13所述的显示面板，其中，在水平方向上，所述顶板的长度占所述叠层结构的长度的比例在0.1范围内。
  16. 根据权利要求13所述的显示面板，其中，在水平方向上，所述底板的长度占所述叠层结构的长度的比例在0.1范围内。
  17. 根据权利要求12所述的显示面板，其中，所述连接板和所述叠层结构之间设置有连接胶。
  18. 一种背光模组的制备方法，其中，包括：
    将背板基材、灯板基材和背光膜基材依次层叠设置形成叠层基材；
    沿层叠方向对所述叠层基材的周缘进行裁切，形成包括背板、灯板和背光膜的叠层结构，所述背光膜和所述灯板在所述背板的正投影与所述背板重合。
  19. 根据权利要求18所述的制备方法，其中，所述沿层叠方向对所述叠层基材的周缘进行裁切，形成包括背板、灯板和背光膜的叠层结构，所述背光膜和所述灯板在所述背板的正投影与所述背板重合之后，所述制备方法还包括：
    在所述叠层结构的至少一端部设置连接板，以连接同侧的所述背板的端部、所述灯板的端部和所述背光膜的端部。
  20. 根据权利要求19所述的制备方法，其中，所述在所述叠层结构的至少一端部设置连接板，以连接同侧的所述背板的端部、所述灯板的端部和所述背光膜的端部，包括：
    在所述叠层结构的至少一端部设置一板材；
    将所述板材的两端折弯并形成包括依次连接的顶板、侧板和底板的所述连接板，所述顶板贴设于所述叠层结构的顶壁，所述侧板贴设于所述叠层结构的侧壁，所述底板贴设于所述叠层结构的底壁。
PCT/CN2023/104728 2023-01-31 2023-06-30 背光模组及其制备方法和显示面板 Ceased WO2024159702A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202310099688.2 2023-01-31
CN202310099688.2A CN117518590B (zh) 2023-01-31 2023-01-31 背光模组及其制备方法和显示面板

Publications (1)

Publication Number Publication Date
WO2024159702A1 true WO2024159702A1 (zh) 2024-08-08

Family

ID=89757249

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/104728 Ceased WO2024159702A1 (zh) 2023-01-31 2023-06-30 背光模组及其制备方法和显示面板

Country Status (2)

Country Link
CN (1) CN117518590B (zh)
WO (1) WO2024159702A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119626096A (zh) * 2024-09-09 2025-03-14 北京京东方显示技术有限公司 显示模组、显示方法、控制器、存储介质及显示系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201039008A (en) * 2009-04-23 2010-11-01 Au Optronics Suzhou Corp Liquid crystal display device
CN202521397U (zh) * 2012-02-15 2012-11-07 青岛海信电器股份有限公司 背光模组
CN105652516A (zh) * 2016-01-04 2016-06-08 合肥京东方显示光源有限公司 一种侧入式背光模组及其制作方法、显示装置
CN109116603A (zh) * 2018-09-03 2019-01-01 信利光电股份有限公司 一种显示屏部件的切割方法
US20190285942A1 (en) * 2018-03-13 2019-09-19 Apple Inc. Light-Emitting Diodes in Displays with Direct-lit Backlight Units
CN111399280A (zh) * 2020-03-25 2020-07-10 海信视像科技股份有限公司 一种显示装置
CN115407548A (zh) * 2021-05-28 2022-11-29 海信视像科技股份有限公司 一种显示装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102297394A (zh) * 2011-08-24 2011-12-28 友达光电(厦门)有限公司 一种在液晶面板中用于安装led灯条的方法
CN115325514B (zh) * 2022-10-12 2023-05-26 惠科股份有限公司 背光模组及显示装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201039008A (en) * 2009-04-23 2010-11-01 Au Optronics Suzhou Corp Liquid crystal display device
CN202521397U (zh) * 2012-02-15 2012-11-07 青岛海信电器股份有限公司 背光模组
CN105652516A (zh) * 2016-01-04 2016-06-08 合肥京东方显示光源有限公司 一种侧入式背光模组及其制作方法、显示装置
US20190285942A1 (en) * 2018-03-13 2019-09-19 Apple Inc. Light-Emitting Diodes in Displays with Direct-lit Backlight Units
CN109116603A (zh) * 2018-09-03 2019-01-01 信利光电股份有限公司 一种显示屏部件的切割方法
CN111399280A (zh) * 2020-03-25 2020-07-10 海信视像科技股份有限公司 一种显示装置
CN115407548A (zh) * 2021-05-28 2022-11-29 海信视像科技股份有限公司 一种显示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119626096A (zh) * 2024-09-09 2025-03-14 北京京东方显示技术有限公司 显示模组、显示方法、控制器、存储介质及显示系统

Also Published As

Publication number Publication date
CN117518590A (zh) 2024-02-06
CN117518590B (zh) 2026-03-31

Similar Documents

Publication Publication Date Title
WO2021142961A1 (zh) 背光模组及显示面板
CN201434951Y (zh) 导光板、背光模组和液晶显示器
CN100474068C (zh) 背光组件和使用该背光组件的液晶显示器
CN102043276A (zh) 液晶显示器
US20220120957A1 (en) Backlight assembly and display device
CN103292213B (zh) 一种背光模组和显示模组
KR102033481B1 (ko) 액정표시장치
CN202102195U (zh) 液晶显示模块及其前框构造
CN101852375B (zh) 背光模块及其液晶显示装置
WO2012126199A1 (zh) 背光模组及液晶显示装置
US20240429215A1 (en) Splicing screen, manufacturing method thereof, and display device
CN101666943A (zh) 液晶显示设备
CN101324725A (zh) 液晶显示设备与背光装置
CN114859594A (zh) 背光模组和显示装置
CN110221479A (zh) 一种背光模组及显示装置
WO2020252964A1 (zh) 背光模组及显示装置
WO2021190399A1 (zh) 一种显示装置
WO2024159702A1 (zh) 背光模组及其制备方法和显示面板
US20170261678A1 (en) Backlight module and liquid crystal display
CN215117080U (zh) 一种显示装置
CN103345088A (zh) 直下式液晶模组和液晶显示装置
CN101476696A (zh) 背光模块与双面液晶显示装置
CN202049303U (zh) 液晶模组
CN114935848B (zh) 一种显示模组及显示装置
CN206400134U (zh) 显示模组、显示面板以及双面显示器

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: 23919267

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: 23919267

Country of ref document: EP

Kind code of ref document: A1