WO2018120392A1 - 背光模块及其应用的显示设备 - Google Patents
背光模块及其应用的显示设备 Download PDFInfo
- Publication number
- WO2018120392A1 WO2018120392A1 PCT/CN2017/074908 CN2017074908W WO2018120392A1 WO 2018120392 A1 WO2018120392 A1 WO 2018120392A1 CN 2017074908 W CN2017074908 W CN 2017074908W WO 2018120392 A1 WO2018120392 A1 WO 2018120392A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- fiber
- guide plate
- optical fiber
- bundle
- Prior art date
Links
Images
Classifications
-
- 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
- G02B6/0005—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 of the fibre type
-
- 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
- G02B6/0005—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 of the fibre type
- G02B6/0008—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 of the fibre type the light being emitted at the end of the fibre
-
- 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0028—Light guide, e.g. taper
-
- 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
-
- 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
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Definitions
- the present application relates to a backlight design method, and in particular to a backlight module and a display device thereof.
- the Backlight Module is a key component widely used in flat panel displays, especially in liquid crystal displays.
- the backlight module is generally disposed on the back of the display panel of the liquid crystal display. According to the different requirements of the function of the liquid crystal display, the backlight module can be mainly divided into a direct type backlight module and an edge light type backlight module.
- the thin film transistor liquid crystal display needs to be matched with the backlight module to display effectively.
- the conventional side-in backlight needs to be attached to the side of the light guide plate, because the size of the light-emitting diode chip is large and the light-emitting diode lamp is needed.
- An integrated circuit board, this design is not conducive to flexible use.
- an object of the present invention is to provide a backlight design method, and more particularly to a backlight module and a display device thereof, and use the optical fiber conduction light source to cancel the structure of the LED light bar, and to play the optical fiber lightly.
- the thin and soft characteristics make the structure of the backlight concentrating system more compact, and the optical fiber entrance mode is changed from the end surface to the side surface, so that the application of the optical fiber flat on the light guide plate can be realized, and the space utilization of the backlight system is more compact.
- a backlight module includes: a light guide plate having a light incident side; a fiber bundle disposed on the light incident side edge of the light guide plate, and divided into a light guide segment and a light exit segment;
- the light collecting reflector is configured to reflect the light emitted by the bundle of fibers into the light incident side of the light guide plate.
- a display device includes a liquid crystal display panel and a backlight module for displaying images.
- the backlight module includes: a light guide plate, a fiber bundle, and a light collecting and reflecting cover.
- the fiber bundle is disposed on an edge of the light incident side of the light guide plate, and is divided into a light guiding segment and a light exiting segment.
- the light collecting reflector is configured to reflect light emitted by the fiber bundle into the light incident side of the light guide plate.
- the fiber bundle segment is evenly covered on the light-incident side edge of the light guide plate, and the optical fiber is used to conduct the light source, and the fiber bundle is mixed and matched to exhibit multi-strand mixing, increasing the size of the light-incident side spot and increasing the light. Uniformity.
- the fiber bundle structure includes a fiber bundle light guiding segment and a fiber bundle light exiting segment.
- the fiber bundle light guiding segment further comprises an inner fiber material and an outer fiber material, and the inner material of the optical fiber has a refractive index greater than a refractive index of the outer material of the optical fiber.
- the fiber bundle exiting section further comprises an inner fiber material and an outer fiber material, and the outer diameter of the outer diameter of the optical fiber is greater than a refractive index of the inner material of the optical fiber.
- the ratio of the length of the light exiting section to the length of the light guiding section is less than 1.
- the light guiding segment of the fiber bundle includes an inner fiber material and a first outer fiber material.
- the refractive index of the inner layer of the optical fiber is greater than the refractive index of the outer material of the first optical fiber.
- the light exiting section of the fiber bundle includes an inner fiber material and a second outer fiber material, and the outer diameter of the second outer fiber is greater than the inner refractive index of the inner fiber.
- the light exiting section of the fiber bundle includes a plurality of segments that are evenly covered on the light incident side edge of the light guide plate.
- the method further includes: a plurality of fiber bundles, wherein the fiber bundles exhibit a plurality of hybrids through mixing and mixing, and increase a spot size of the light exiting segments of the fiber bundles.
- the method further includes: a light source for providing a light beam to the fiber bundle, wherein the light source is a monochrome light emitting diode or a color light emitting diode.
- the shape of the light guide plate is a rectangular parallelepiped shape or a rectangular parallelepiped shape.
- the ratio of the length of the light exiting section to the length of the light guiding section is less than 1.
- the invention has the beneficial effects that the optical light bar is replaced by an optical fiber, and the flexible backlight design can be realized.
- FIG. 1 is a schematic diagram of an exemplary side-entry backlight module design.
- Figure 2a is a schematic illustration of an exemplary light guide.
- Figure 2b is a schematic illustration of another exemplary light guide.
- 2c is a schematic cross-sectional view of a BB of an exemplary light guide plate.
- 2d is a schematic cross-sectional view of the exemplary light guide plate taken along line AA.
- Figure 2e is a schematic cross-sectional view of another exemplary light guide plate A'A'.
- 3a is a cross-sectional view showing the structure of an optical fiber according to an embodiment of the present application.
- Figure 3b is a cross-sectional view of a fiber optic bundle in accordance with an embodiment of the present application.
- FIG. 3c is a diagram of a fiber bundle group architecture according to an embodiment of the present application.
- FIG. 4 is a cross-sectional view of a light guide plate having an optical fiber structure according to an embodiment of the present application.
- FIG. 5a is a block diagram of another fiber bundle assembly according to an embodiment of the present application.
- FIG. 5b is a schematic diagram of a hybrid arrangement structure of an optical fiber exit section according to an embodiment of the present application.
- the word “comprising” is to be understood to include the component, but does not exclude any other component.
- “on” means located above or below the target component, and does not mean that it must be on the top based on the direction of gravity.
- the display device of the present application comprises a liquid crystal display panel and a backlight module, which are oppositely disposed.
- the liquid crystal display panel mainly comprises a color filter substrate, a thin film transistor substrate and a liquid crystal layer interposed between the two substrates.
- the color filter substrate and the thin film transistor substrate and the liquid crystal layer can form a plurality of pixel units arranged in an array.
- the backlight module emits light through the liquid crystal display panel and displays an image through each pixel unit of the liquid crystal display panel to form an image.
- the liquid crystal display panel of the present application may be a curved display panel, and the display device of the present application may also be a curved display device; the backlight module is disposed in a liquid crystal display device of a vertical alignment mode. .
- the light alignment technique forms a multi-domain alignment in each pixel unit of the panel such that liquid crystal molecules in one pixel unit are dumped in, for example, four different directions.
- the optical alignment technique is to irradiate a polymer film (alignment layer) on the color filter substrate or the thin film transistor substrate by using an ultraviolet light source (for example, polarized light) to cause unevenness of the polymer structure on the surface of the film.
- the photopolymerization, isomerization or cleavage reaction induces a special directionality of the chemical bond structure on the surface of the film to further induce the liquid crystal molecules to be aligned in the direction to achieve optical alignment.
- liquid crystal display panels on the mainstream market can be classified into the following types: Vertical Alignment (VA) type, Twisted Nematic (TN) or Super Twisted (Super Twisted). Nematic, STN) type, In-Plane Switching (IPS) type and Fringe Field Switching (FFS) type.
- VA Vertical Alignment
- STN Twisted Nematic
- IPS In-Plane Switching
- FFS Fringe Field Switching
- VA Vertical Alignment
- VA Vertical Alignment
- PVA Pattern Vertical Alignment
- MVA Multi-domain Vertical Alignment
- Equipment in which the PVA type utilizes the fringe field effect and the compensation plate to achieve a wide viewing angle.
- the MVA type divides a single pixel into a plurality of regions, and uses a protrusion or a specific pattern structure to tilt liquid crystal molecules located in different regions toward different directions to achieve a wide viewing angle and enhance the transmittance.
- liquid crystal molecules are driven in a direction parallel to the plane of the substrate by applying an electric field containing a component substantially parallel to the substrate.
- the IPS type liquid crystal display panel and the FFS type liquid crystal display panel have the advantages of wide viewing angle.
- Backlight Module is one of the important components of thin film transistor liquid crystal display (TFT-LCD). Since the thin film transistor liquid crystal display is a non-self-luminous display, it is necessary to project light through the light source and pass through the light guiding structure, the diffusion sheet, the prism sheet, the liquid crystal panel and the like in the thin film transistor liquid crystal display, and finally enter the human Eye imaging to achieve display function.
- the backlight module is divided into an edge type (Edge Type) and a direct type (Direct Type) according to the position of the light source, wherein the side light type structure is disposed on the side of the light guide structure.
- Edge Type edge type
- Direct Type direct type
- the light-emitting surface of the light guiding structure is prone to light leakage near the light-emitting source.
- FIG. 1 is a schematic diagram of an exemplary side-entry backlight module design.
- the thin film transistor liquid crystal display needs to be matched with the backlight to be effectively displayed.
- the conventional side-lit backlight needs to be attached to the side of the light guide plate 100 due to the size of the LED chip 110 . Large and in need of LED light strip integrated circuit board, this design is not conducive to flexible use.
- FIG. 2a is a schematic view of an exemplary light guide plate 100
- FIG. 2b is a schematic view of another exemplary light guide plate 100
- FIG. 2c is a BB cross-sectional view of an exemplary light guide plate 100
- FIG. 2d is a cross-sectional view of the exemplary light guide plate 100 taken along line AA and FIG. A schematic cross-sectional view of the A'A' of another exemplary light guide plate 100.
- the exemplary technique proposes to use the optical fiber 230 instead of the LED chip 110, and uses a light collecting device 220 to collect the light emitted by the fiber bundle 230. .
- FIG. 3a is a cross-sectional view of an optical fiber structure according to an embodiment of the present application
- FIG. 3b is a cross-sectional view of a fiber bundle 360 according to an embodiment of the present application
- FIG. 3c is a structural diagram of a fiber bundle 360 assembly according to an embodiment of the present application.
- an optical fiber introduction light source is used to enter the light incident side of the light guide plate 100. The difference is that the present application utilizes the side light of the optical fiber instead of the inherent end surface light.
- the optical fiber is designed to be totally reflected by the inner and outer layers of different refractive indices, and the light is designed to be totally reflected in the light guiding section 340.
- the refractive index of the inner and outer materials is different and the internal refractive index of the optical fiber is larger than the external refractive index, which satisfies the total reflection condition and makes the light highly efficient.
- the refractive index of the outer material of the optical fiber is changed, so that the optical fiber no longer maintains total reflection, and light is transmitted through and enters the light incident side of the light guide plate 100.
- the fiber bundle 360 structure includes a fiber bundle light guiding segment 340 and The fiber bundle exit section 350.
- the fiber bundle light guiding segment 340 further includes an inner fiber material 310 and an outer fiber material 320.
- the inner diameter of the fiber material 310 is greater than the refractive index of the outer fiber material 320.
- the fiber bundle light exiting section 350 further includes an optical fiber inner layer material 310 and an outer fiber outer material 330.
- the outer diameter of the outer diameter material 330 is greater than the refractive index of the inner fiber material 310 of the optical fiber.
- the ratio of the length of the light exiting section 350 to the length of the light guiding section 340 is less than 1.
- the interface between the layers is touched to produce a different result.
- the fiber inner layer material 310 in the fiber bundle light guiding section 340 As an example, when the light contacts the interface between the outer fiber material 320 and the inner fiber material 310, due to the inner layer of the optical fiber The refractive index of the material 310 is greater than the refractive index of the outer layer material 320 of the optical fiber. Therefore, the light of the inner layer material 310 of the optical fiber can be smoothly reflected into the inner layer material 310 of the optical fiber, and is less likely to be refracted to the outside of the optical fiber. Layer material 320.
- the optical fiber inner layer material 310 in the fiber exit light exiting section 350 when the light contacts the interface between the outer optical fiber material 330 and the inner fiber inner material 310, the optical fiber The refractive index of the outer layer material 330 is greater than the refractive index of the inner layer material 310 of the optical fiber. Therefore, the light in the inner layer material 310 of the optical fiber can be smoothly refracted into the outer layer material 330 of the optical fiber, and is relatively less likely to cause reflection and return to the The fiber inner layer material 310 is described.
- the light guide plate 100 further includes a fiber bundle 360 and a light collecting reflector 370 .
- the fiber bundle 360 is disposed at an edge of the light incident side 210 of the light guide plate 100 and is divided into a light guiding segment 340 and an light exiting segment 350.
- the light collecting reflector 370 is configured to reflect the light emitted by the fiber bundle 360 into the light incident side 210 of the light guide plate 100.
- FIG. 5a is a structural diagram of another fiber bundle assembly 500 according to an embodiment of the present application
- FIG. 5b is a structural diagram of a hybrid arrangement 510 of an optical fiber exit section according to an embodiment of the present application.
- the fiber bundle 360 is segmented uniformly over the edge of the light-incident side 210 of the light guide plate 100, and the fiber bundle 361, 362 is mixed and multi-stranded by using a fiber-optic conduction light source. Mixing, increasing the spot size on the light side 210 to improve light uniformity.
- the light source is configured to provide a light beam to the fiber bundle, and the light source may be a monochrome light emitting diode or a color light emitting diode, a Cold Cathode Fluorescent Lamp (CCFL), Organic Light Emitting Diode (OLED), Electro-Luminescence (EL), Light Bar, or any combination thereof.
- CCFL Cold Cathode Fluorescent Lamp
- OLED Organic Light Emitting Diode
- EL Electro-Luminescence
- Light Bar or any combination thereof.
- the shape of the light guide plate 100 is a rectangular parallelepiped shape or a rectangular parallelepiped shape.
- a display device includes a liquid crystal display panel and a backlight module for displaying images, and the backlight module includes A light guide plate 100, a fiber bundle 360 and a light collecting reflector 370.
- the fiber bundle 360 is disposed at an edge of the light incident side 210 of the light guide plate 100 and is divided into a light guiding segment 340. And the light exit section 350.
- the light collecting reflector 370 is configured to reflect the light emitted by the fiber bundle 360 into the light incident side 210 of the light guide plate 100.
- the fiber bundle 360 is segmented, evenly covered on the edge of the light-incident side 210 of the light guide plate 100, and the optical fiber is used to conduct the light source.
- the fiber bundles 361, 362 are mixed and matched to exhibit multi-strand mixing, and the light-incident side is enlarged. 210 spot size for improved light uniformity.
- the fiber bundle 360 structure includes a fiber bundle light guiding segment 340 and a fiber bundle light exiting segment 350.
- the fiber bundle light guiding segment 340 further includes an inner fiber material 310 and an outer fiber material 320.
- the inner diameter of the fiber material 310 is greater than the refractive index of the outer fiber material 320.
- the fiber bundle light exiting section 350 further includes an optical fiber inner layer material 310 and an outer fiber outer material 330.
- the outer diameter of the outer diameter material 330 is greater than the refractive index of the inner fiber material 310 of the optical fiber.
- the light from the source enters the fiber bundle 360 structure, it will touch the interface between the layers to produce a different result.
- the fiber inner layer material 310 in the fiber bundle light guiding section 340 as an example, when the light contacts the interface between the outer fiber material 320 and the inner fiber material 310, due to the inner layer of the optical fiber The refractive index of the material 310 is greater than the refractive index of the outer layer material 320 of the optical fiber. Therefore, the light of the inner layer material 310 of the optical fiber can be smoothly reflected into the inner layer material 310 of the optical fiber, and is less likely to be refracted to the outside of the optical fiber.
- the refractive index of the outer layer material 330 is greater than the refractive index of the inner layer material 310 of the optical fiber. Therefore, the light in the inner layer material 310 of the optical fiber can be smoothly refracted into the outer layer material 330 of the optical fiber, and is relatively less likely to cause reflection and return to the The fiber inner layer material 310 is described.
- the ratio of the length of the light exiting section 350 to the length of the light guiding section 340 is less than 1.
- the utility model has the beneficial effects that the light-emitting diode light bar is replaced by the optical fiber, the flexible backlight design can be realized, and the optical fiber conduction light source is used, the light-emitting diode light bar structure is eliminated, the light fiber is light, thin and soft, and the backlight light collecting system structure is adopted. More compact, the optical fiber entrance mode is changed from the end surface to the side surface, and the application of the optical fiber flat on the light guide plate can be realized, so that the space utilization of the backlight system is more concise.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
Abstract
一种背光模块及其应用的显示设备,包括:一导光板(100),具有一入光侧(210);一光纤束(360),设置在所述导光板(100)的入光侧(210)边缘,并分为导光段(340)及出光段(350);以及一光收集反射罩(370),用以反射所述光纤束(360)发出的光线进入导光板(100)的入光侧(210)。
Description
本申请涉及一种背光设计方法,特别是涉及一种背光模块及其应用的显示设备。
背光模块(Backlight Module)是广泛应用在平面显示器中的关键零组件,特别是应用在液晶显示器中。背光模块一般设在液晶显示器的显示面板背面,而依据液晶显示器功能上的不同需求,其背光模块主要可分为直下式背光模块及侧光式背光模块两种。
薄膜晶体管液晶显示器除玻璃基板外,还需要搭配背光模块才能有效显示,而传统采用侧入式背光需要将发光二极管芯片贴在导光板侧边,由于发光二极管芯片尺寸大且又需将发光二极管灯条集成电路板,此设计不利于柔性使用。
发明内容
为了解决上述技术问题,本申请的目的在于,提供一种背光设计方法,特别是涉及一种背光模块及其应用的显示设备,并利用光纤传导光源,取消发光二极管灯条结构,发挥光纤轻、薄、柔软的特性,使背光的集光系统结构更加简洁,光纤入光方式由端面变更为侧面,可以实现光纤平贴在导光板上的应用,使得背光系统空间利用更简洁。
本申请的目的及解决其技术问题采用以下技术方案来实现。依据本申请提出的一种背光模块,包括:一导光板,具有一入光侧;一光纤束,设置在所述导光板的入光侧边缘,并分为导光段及出光段;以及一光收集反射罩,用以反射所述光纤束发出的光线进入导光板的入光侧。
本申请的目的及解决其技术问题还可采用以下技术措施进一步实现。
一种显示设备,包括一液晶显示面板及背光模块,用于显示影像,所述背光模块包括:一导光板、一光纤束及一光收集反射罩。所述光纤束,设置在所述导光板的入光侧边缘,并分为导光段及出光段。所述光收集反射罩,用以反射所述光纤束发出的光线进入导光板入光侧。且通过所述光纤束分段,均匀布满在导光板入光侧边缘,并利用光纤传导光源,所述光纤束透过混合搭配呈现多股混合,加大入光侧光点大小,提高光均匀性。所述光纤束结构包括光纤束导光段及光纤束出光段。所述光纤束导光段更包括光纤内层材质及光纤外层材质,所述光纤内层材质折射率大于所述光纤外层材质折射率。所述光纤束出光段更包括光纤内层材质及光纤外层材质,所述光纤外层材质折射率大于所述光纤内层材质折射率。其中所述出光段长度与所述导光段长度的比例小于1。
在本申请的一实施例中,所述光纤束的导光段包括一光纤内层材质及一第一光纤外层材质,所
述光纤内层材质折射率大于所述第一光纤外层材质折射率。
在本申请的一实施例中,所述光纤束的出光段包括一光纤内层材质及一第二光纤外层材质,所述第二光纤外层材质折射率大于所述光纤内层材质折射率。
在本申请的一实施例中,所述光纤束的出光段包括多个分段,其均匀布满在所述导光板入光侧边缘。
在本申请的一实施例中,还包括:多条光纤束,所述光纤束透过混合搭配呈现多股混合,加大所述光纤束的出光段光点大小。
在本申请的一实施例中,还包括:一光源,用以提供一光线给所述光纤束,所述光源为单色发光二极管或彩色发光二极管。
在本申请的一实施例中,所述导光板的形状为一长方体形状或正方体形状。
在本申请的一实施例中,所述出光段长度与导光段长度的比例小于1。
本发明的有益效果是利用光纤取代发光二极管灯条,能实现柔性背光设计。
图1是范例性侧入式背光模块设计示意图。
图2a是范例性导光板示意图。
图2b是另一范例性导光板示意图。
图2c是范例性导光板的BB剖面示意图。
图2d是范例性导光板的AA剖面示意图。
图2e是另一范例性导光板的A’A’剖面示意图。
图3a是本申请一实施例的光纤结构剖面图。
图3b是本申请一实施例的光纤束剖面图。
图3c是本申请一实施例的光纤束组架构图。
图4是本申请一实施例的具有光纤结构的导光板剖面图。
图5a是本申请一实施例的另一光纤束组架构图。
图5b是本申请一实施例的光纤出光段混合排列架构图。
以下各实施例的说明是参考附加的图式,用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语,例如「上」、「下」、「前」、「后」、「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申请,而非用以限制本申请。
附图和说明被认为在本质上是示出性的,而不是限制性的。在图中,结构相似的单元是以相同标号表示。另外,为了理解和便于描述,附图中示出的每个组件的尺寸和厚度是任意示出的,但是本申请不限于此。
在附图中,为了清晰起见,夸大了层、膜、面板、区域等的厚度。在附图中,为了理解和便于描述,夸大了一些层和区域的厚度。将理解的是,例如当层、膜、区域或基底的组件被称作“在”另一组件“上”时,所述组件可以直接在所述另一组件上,或者也可以存在中间组件。
另外,在说明书中,除非明确地描述为相反的,否则词语“包括”将被理解为意指包括所述组件,但是不排除任何其它组件。此外,在说明书中,“在......上”意指位于目标组件上方或者下方,而不意指必须位于基于重力方向的顶部上。
为更进一步阐述本申请为达成预定发明目的所采取的技术手段及功效,以下结合附图及较佳实施例,对依据本申请提出的一种背光模块及其应用的显示设备其具体实施方式、结构、特征及其功效,详细说明如后。
本申请的显示设备包含一液晶显示面板以及一背光模块,两者相对设置。液晶显示面板主要包含一彩色滤光基板、一薄膜晶体管基板以及一夹设于两基板之间的液晶层,彩色滤光基板及薄膜晶体管基板与液晶层可形成多个数组配置的画素单元。背光模块可发出光线穿过液晶显示面板,并经由液晶显示面板各画素单元显示色彩而形成一影像。
在一实施例中,本申请的液晶显示面板可为曲面型显示面板,且本申请的显示设备亦可为曲面型显示装置;所述背光模块是设置于垂直配向型模式的液晶显示设备之中。
目前液晶显示设备的制造业者在提升垂直配向(Vertical Alignment,VA)型液晶显示面板的广视角技术上,已跨入利用光配向(Photo-alignment)技术来控制液晶分子的配向方向,藉此提高液晶显示面板的光学性能与良率。光配向技术会在面板的各画素单元内形成多领域(Multi-domain)的配向,使得一个画素单元内的液晶分子会倾倒于例如四个不同方向。其中,光配向技术为使用一紫外光源(例如偏极化光)照射在彩色滤光基板或薄膜晶体管基板的一高分子薄膜(配向层)上,使薄膜表面上的高分子结构发生不均匀性的光聚合、异构化或裂解反应,诱使薄膜表面上的化学键结构产生特殊的方向性,以进一步诱导液晶分子顺向排列而达到光配向的目的。
按照液晶的取向方式不同,目前主流市场上的液晶显示面板可以分为以下几种类型:垂直配向(Vertical Alignment,VA)型、扭曲向列(Twisted Nematic,TN)或超扭曲向列(Super Twisted Nematic,STN)型、平面转换(In-Plane Switching,IPS)型及边缘场开关(Fringe Field Switching,FFS)型。所述垂直配向型(Vertical Alignment,VA)模式的液晶显示,例如图形垂直配向型(Patterned Vertical Alignment,PVA)液晶显示器或多区域垂直配向型(Multi-domain Vertical Alignment,MVA)液晶显示
设备,其中PVA型利用边缘场效应与补偿板达到广视角的效果。MVA型将一个画素分成多个区域,并使用突起物(Protrusion)或特定图案结构,使位于不同区域的液晶分子朝向不同方向倾倒,以达到广视角且提升穿透率的作用。在IPS模式或FFS模式中,通过施加含有基本平行于基板的分量的电场,使液晶分子在平行于基板平面的方向相应而驱动液晶分子。IPS型液晶显示面板和FFS型液晶显示面板,二者具有广视角的优点。
背光模块(Backlight Module,BLM)为薄膜晶体管液晶显示器(TFT-LCD)的重要零组件之一。由于薄膜晶体管液晶显示器为非自发光的显示器,必须透过发光源投射光线,并穿过薄膜晶体管液晶显示器中的导光结构、扩散片、棱镜片、液晶面板等相关零组件,最后进入人的眼睛成像,以达到显示功能。
背光模块依发光源的位置分成侧光式(Edge Type)和直下式(Direct Type)两种结构,其中侧光式结构是将发光源设置于导光结构侧边。然而,导光结构的出光面在靠近发光源处容易产生漏光的情形。
图1为范例性侧入式背光模块设计示意图。请参照图1,薄膜晶体管液晶显示器除了玻璃基板之外,还需要搭配背光才能有效显示,而传统采用侧入式背光需要将发光二极管芯片110贴在导光板100侧边,由于发光二极管芯片110尺寸大且又需将发光二极管灯条集成电路板,此设计不利于柔性使用。
图2a为范例性导光板100示意图、图2b为另一范例性导光板100示意图、图2c为范例性导光板100的BB剖面示意图、图2d为范例性导光板100的AA剖面示意图及图2e为另一范例性导光板100的A’A’剖面示意图。请参照图2a、图2b、图2c、图2d及图2e,范例性技术提出使用光纤230来取代发光二极管芯片110,并利用一光收集装置220,来收集由所述光纤束230发出的光线。
图3a为本申请一实施例的光纤结构剖面图、图3b为本申请一实施例的光纤束360剖面图及图3c为本申请一实施例的光纤束360组架构图。请参照图3a、图3b及图3c,在本申请的一实施例中,采用光纤导入光源进入导光板100入光侧,不同的是,本申请是利用光纤侧面出光而非固有的端面出光,光纤透过内外两层不同折射率设计,将光在导光段340设计为全反射,内外材质的折射率不同且光纤内部折射率大于外部的折射率,满足全反射条件,使光进行高效率传递,当到达需要出光区段350时,光纤外部材质折射率改变,使光纤不再维持全反射,而有光透出并进入导光板100入光侧。依据折射率原理n1sinθ1=n2sinθ2,利用光纤出光段350外层的改变,使材质330折射率大于材质310折射率。
请参照图3a及图3c,在本申请的一实施例中,所述光纤束360结构包括光纤束导光段340及
光纤束出光段350。所述光纤束导光段340更包括光纤内层材质310及光纤外层材质320,所述光纤内层材质310折射率大于所述光纤外层材质320折射率。所述光纤束出光段350更包括光纤内层材质310及光纤外层材质330,所述光纤外层材质330折射率大于所述光纤内层材质310折射率。其中所述出光段350长度与所述导光段340长度的比例小于1。
请继续参照图3a及图3c,发光源发出的光线进入光纤束360结构后,将触碰各层之间的交界面而产生相异的结果。以光线在光纤束导光段340中的光纤里层材质310为例,当光线接触所述光纤外层材质320和所述光纤里层材质310之间的交界面时,由于所述光纤里层材质310折射率大于所述光纤外层材质320折射率,因此在所述光纤里层材质310的光线可顺利地反射进入所述光纤里层材质310中,比较不易产生折射而到所述光纤外层材质320中。同样的,以光线在光纤束出光段350中的光纤里层材质310为例,当光线接触所述光纤外层材质330和所述光纤里层材质310之间的交界面时,由于所述光纤外层材质330折射率大于所述光纤里层材质310折射率,因此所述光纤里层材质310中的光线可顺利地折射进入所述光纤外层材质330中,比较不易产生反射而回到所述光纤里层材质310中。
图4为本申请一实施例的具有光纤360结构的导光板100剖面图。请参照图4,在本申请一实施例中,所述导光板100更包括一光纤束360及一光收集反射罩370。所述光纤束360,设置在所述导光板100的入光侧210边缘,并分为导光段340及出光段350。所述光收集反射罩370,用以反射所述光纤束360发出的光线进入导光板100入光侧210。
图5a为本申请一实施例的另一光纤束组500架构图及图5b为本申请一实施例的光纤出光段混合排列510架构图。请参照图5a及图5b,通过所述光纤束360分段,均匀布满在导光板100入光侧210边缘,且利用光纤传导光源,所述光纤束361,362透过混合搭配呈现多股混合,加大入光侧210光点大小,提高光均匀性。
在本申请的一实施例中,所述光源用以提供一光线给所述光纤束,所述光源可为单色发光二极管或彩色发光二极管、冷阴极荧光灯管(Cold Cathode Fluorescent Lamp,CCFL)、有机发光二极管(Organic Light Emitting Diode,OLED)、电激发光组件(Electro-Luminescence;EL)、发光灯条(Light Bar)或上述的任意组合。
请参照图4,在本申请的一实施例中,所述导光板100的形状为一长方体形状或正方体形状。
请参照图3a、图3c、图4、图5a及图5b,在本申请的一实施例中,一种显示设备,包括一液晶显示面板及背光模块,用于显示影像,所述背光模块包括:一导光板100、一光纤束360及一光收集反射罩370。所述光纤束360,设置在所述导光板100的入光侧210边缘,并分为导光段340
及出光段350。所述光收集反射罩370,用以反射所述光纤束360发出的光线进入导光板100入光侧210。且通过所述光纤束360分段,均匀布满在导光板100入光侧210边缘,并利用光纤传导光源,所述光纤束361,362透过混合搭配呈现多股混合,加大入光侧210光点大小,提高光均匀性。所述光纤束360结构包括光纤束导光段340及光纤束出光段350。所述光纤束导光段340更包括光纤内层材质310及光纤外层材质320,所述光纤内层材质310折射率大于所述光纤外层材质320折射率。所述光纤束出光段350更包括光纤内层材质310及光纤外层材质330,所述光纤外层材质330折射率大于所述光纤内层材质310折射率。当发光源发出的光线进入光纤束360结构后,将触碰各层之间的交界面而产生相异的结果。以光线在光纤束导光段340中的光纤里层材质310为例,当光线接触所述光纤外层材质320和所述光纤里层材质310之间的交界面时,由于所述光纤里层材质310折射率大于所述光纤外层材质320折射率,因此在所述光纤里层材质310的光线可顺利地反射进入所述光纤里层材质310中,比较不易产生折射而到所述光纤外层材质320中。同样的,以光线在光纤束出光段350中的光纤里层材质310为例,当光线接触所述光纤外层材质330和所述光纤里层材质310之间的交界面时,由于所述光纤外层材质330折射率大于所述光纤里层材质310折射率,因此所述光纤里层材质310中的光线可顺利地折射进入所述光纤外层材质330中,比较不易产生反射而回到所述光纤里层材质310中。其中所述出光段350长度与所述导光段340长度的比例小于1。
本申请的有益效果是利用光纤取代发光二极管灯条,能实现柔性背光设计,并利用光纤传导光源,取消发光二极管灯条结构,发挥光纤轻、薄、柔软的特性,使背光的集光系统结构更加简洁,光纤入光方式由端面变更为侧面,可以实现光纤平贴在导光板上的应用,使得背光系统空间利用更简洁。
“在一些实施例中”及“在各种实施例中”等用语被重复地使用。所述用语通常不是指相同的实施例;但它亦可以是指相同的实施例。“包含”、“具有”及“包括”等用词是同义词,除非其前后文意显示出其它意思。
以上所述,仅是本申请的较佳实施例而已,并非对本申请作任何形式上的限制,虽然本申请已以较佳实施例揭露如上,然而并非用以限定本申请,任何熟悉本专业的技术人员,在不脱离本申请技术方案范围内,当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例,但凡是未脱离本申请技术方案的内容,依据本申请的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本申请技术方案的范围内。
Claims (20)
- 一种背光模块,包括:一导光板,具有一入光侧;一光纤束,设置在所述导光板的入光侧边缘,并分为导光段及出光段;以及一光收集反射罩,用以反射所述光纤束发出的光线进入导光板的入光侧。
- 如权利要求1所述的背光模块,其中所述光纤束的导光段包括一光纤内层材质及一第一光纤外层材质,所述光纤内层材质折射率大于所述第一光纤外层材质折射率。
- 如权利要求1所述的背光模块,其中所述光纤束的出光段包括一光纤内层材质及一第二光纤外层材质,所述第二光纤外层材质折射率大于所述光纤内层材质折射率。
- 如权利要求1所述的背光模块,其中所述光纤束的出光段包括多个分段,其均匀布满在所述导光板入光侧边缘。
- 如权利要求1所述的背光模块,还包括:多条光纤束,所述光纤束透过混合搭配呈现多股混合,加大所述光纤束的出光段光点大小。
- 如权利要求1所述的背光模块,还包括:一光源,用以提供一光线给所述光纤束,所述光源为单色发光二极管或彩色发光二极管。
- 如权利要求1所述的背光模块,其中所述导光板的形状为一长方体形状。
- 如权利要求1所述的背光模块,其中所述导光板的形状为一正方体形状。
- 如权利要求1所述的背光模块,其中所述出光段长度与导光段长度的比例小于1。
- 一种显示设备,包括一液晶显示面板及背光模块,用于显示影像,所述背光模块包括:一导光板,具有一入光侧;一光纤束,设置在所述导光板的入光侧边缘,并分为导光段及出光段;以及一光收集反射罩,用以反射所述光纤束发出的光线进入导光板的入光侧。
- 如权利要求10所述的显示设备,其中所述光纤束的导光段包括一光纤内层材质及一第一光纤外层材质,所述光纤内层材质折射率大于所述第一光纤外层材质折射率。
- 如权利要求10所述的显示设备,其中所述光纤束的出光段包括一光纤内层材质及一第二光纤外层材质,所述第二光纤外层材质折射率大于所述光纤内层材质折射率。
- 如权利要求10所述的显示设备,其中所述光纤束的出光段包括多个分段,其均匀布满在所述导光板入光侧边缘。
- 如权利要求10所述的显示设备,还包括:多条光纤束,所述光纤束透过混合搭配呈现多股混合,加大所述光纤束的出光段光点大小。
- 如权利要求10所述的显示设备,还包括:一光源,用以提供一光线给所述光纤束。
- 如权利要求15所述的显示设备,其中所述光源为单色发光二极管或彩色发光二极管。
- 如权利要求10所述的显示设备,其中所述导光板的形状为一长方体形状。
- 如权利要求10所述的显示设备,其中所述导光板的形状为一正方体形状。
- 如权利要求10所述的显示设备,其中所述出光段长度与导光段长度的比例小于1。
- 一种背光模块,包括:一导光板,具有一入光侧;一光纤束,设置在所述导光板的入光侧边缘,并分为导光段及出光段;以及一光收集反射罩,用以反射所述光纤束发出的光线进入导光板的入光侧;所述光纤束的导光段包括一光纤内层材质及一第一光纤外层材质,所述光纤内层材质折射率大于所述第一光纤外层材质折射率;所述光纤束的出光段包括一光纤内层材质及一第二光纤外层材质,所述第二光纤外层材质折射率大于所述光纤内层材质折射率;所述光纤束的出光段包括多个分段,其均匀布满在所述导光板入光侧边缘;所述光纤束透过混合搭配呈现多股混合,加大所述光纤束的出光段光点大小;所述导光板的形状为一长方体形状;所述出光段长度与导光段长度的比例小于1。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/537,145 US10330856B2 (en) | 2016-12-27 | 2017-02-26 | Display backlight module having led source with fiber bundle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611228280.7A CN106526969B (zh) | 2016-12-27 | 2016-12-27 | 背光模块及其应用的显示设备 |
CN201611228280.7 | 2016-12-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018120392A1 true WO2018120392A1 (zh) | 2018-07-05 |
Family
ID=58337668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2017/074908 WO2018120392A1 (zh) | 2016-12-27 | 2017-02-26 | 背光模块及其应用的显示设备 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10330856B2 (zh) |
CN (1) | CN106526969B (zh) |
WO (1) | WO2018120392A1 (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106772762A (zh) | 2016-12-27 | 2017-05-31 | 惠科股份有限公司 | 背光模块 |
US10571690B2 (en) * | 2018-06-29 | 2020-02-25 | GM Global Technology Operations LLC | Automotive window with transparent light guide display |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005091494A (ja) * | 2003-09-12 | 2005-04-07 | Seiko Epson Corp | 電気光学装置、および電子機器 |
CN101109869A (zh) * | 2007-08-24 | 2008-01-23 | 中山大学 | 侧入直下式背光模组 |
CN101790701A (zh) * | 2008-06-03 | 2010-07-28 | 松下电器产业株式会社 | 液晶背光以及使用该液晶背光的液晶显示装置 |
CN101946197A (zh) * | 2008-02-14 | 2011-01-12 | 肖特公开股份有限公司 | 侧发光阶跃型光纤 |
CN104100924A (zh) * | 2013-11-26 | 2014-10-15 | 深圳市华星光电技术有限公司 | 背光模组及使用该背光模组的背光系统 |
CN106019718A (zh) * | 2016-08-03 | 2016-10-12 | 京东方科技集团股份有限公司 | 背光模组及显示装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3718814A (en) * | 1972-03-27 | 1973-02-27 | Gen Motors Corp | Fiber optic illuminator and method of making same |
US4824194A (en) * | 1987-03-25 | 1989-04-25 | Fuji Photo Film Co., Ltd. | Light guide apparatus formed from strip light guides |
NL8701794A (nl) * | 1987-07-29 | 1989-02-16 | Du Pont Nederland | Oppervlakteverlichtingsinrichting met behulp van lichtgeleiders. |
US5799124A (en) * | 1996-05-15 | 1998-08-25 | Southeastern Univ. Research Assn., Inc. | Illuminating system and method for specialized and decorative lighting using liquid light guides |
JPH1166928A (ja) * | 1997-08-22 | 1999-03-09 | Bridgestone Corp | 線状発光体 |
US6036340A (en) * | 1998-03-03 | 2000-03-14 | Ford Global Technologies, Inc. | Dimpled manifold optical element for a vehicle lighting system |
JP2003281916A (ja) * | 2002-03-26 | 2003-10-03 | Fujitsu Ltd | バックライト装置 |
US7773849B2 (en) * | 2004-12-14 | 2010-08-10 | Oms Displays Ltd. | Device and method for optical resizing and backlighting |
US7549783B2 (en) * | 2005-04-18 | 2009-06-23 | Energy Focus, Inc. | Efficient luminaire with directional side-light extraction |
JP4299826B2 (ja) * | 2005-11-30 | 2009-07-22 | 株式会社住田光学ガラス | 蛍光ファイバを用いた白色発光装置 |
US7618176B2 (en) * | 2006-06-22 | 2009-11-17 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Solid state light source adapted for remote illumination |
US8434909B2 (en) * | 2007-10-09 | 2013-05-07 | Flex Lighting Ii, Llc | Light emitting display with light mixing within a film |
-
2016
- 2016-12-27 CN CN201611228280.7A patent/CN106526969B/zh active Active
-
2017
- 2017-02-26 WO PCT/CN2017/074908 patent/WO2018120392A1/zh active Application Filing
- 2017-02-26 US US15/537,145 patent/US10330856B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005091494A (ja) * | 2003-09-12 | 2005-04-07 | Seiko Epson Corp | 電気光学装置、および電子機器 |
CN101109869A (zh) * | 2007-08-24 | 2008-01-23 | 中山大学 | 侧入直下式背光模组 |
CN101946197A (zh) * | 2008-02-14 | 2011-01-12 | 肖特公开股份有限公司 | 侧发光阶跃型光纤 |
CN101790701A (zh) * | 2008-06-03 | 2010-07-28 | 松下电器产业株式会社 | 液晶背光以及使用该液晶背光的液晶显示装置 |
CN104100924A (zh) * | 2013-11-26 | 2014-10-15 | 深圳市华星光电技术有限公司 | 背光模组及使用该背光模组的背光系统 |
CN106019718A (zh) * | 2016-08-03 | 2016-10-12 | 京东方科技集团股份有限公司 | 背光模组及显示装置 |
Also Published As
Publication number | Publication date |
---|---|
US10330856B2 (en) | 2019-06-25 |
CN106526969B (zh) | 2019-04-05 |
CN106526969A (zh) | 2017-03-22 |
US20190025497A1 (en) | 2019-01-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9690037B2 (en) | Liquid crystal display device including boundary fluorescent body | |
WO2016131210A1 (zh) | 反射式柔性液晶显示器 | |
KR970008351B1 (ko) | 액정 표시 장치 | |
WO2018076948A1 (zh) | 显示面板和显示装置 | |
JP4900363B2 (ja) | 液晶表示装置 | |
US20100164860A1 (en) | Liquid crystal display device | |
TWI465803B (zh) | 顯示裝置 | |
WO2016107084A1 (zh) | 光学模组和反射型显示装置 | |
US7796212B2 (en) | Liquid crystal display device having improved viewing angle and brightness | |
US20080218657A1 (en) | Display Device and Mobile Terminal Having the Same | |
WO2016049960A1 (zh) | 液晶显示装置 | |
TWI646511B (zh) | 拼接顯示裝置 | |
US20120092589A1 (en) | Back light module and liquid crystal display device | |
CN109143675A (zh) | 偏光结构及显示装置 | |
WO2018120508A1 (zh) | 背光模块及显示设备 | |
WO2016049959A1 (zh) | 液晶显示装置 | |
WO2018120392A1 (zh) | 背光模块及其应用的显示设备 | |
US20090140962A1 (en) | Display Device and Mobile Terminal Having the Same | |
US20170285384A1 (en) | Liquid crystal display device and liquid crystal display system | |
US9140930B2 (en) | Slim frame backlight module | |
CN109683381A (zh) | 光学膜层和显示装置 | |
WO2018120326A1 (zh) | 一种侧入式背光模板的led入光方法 | |
KR100883659B1 (ko) | 편광된 광을 제공하는 조명장치 | |
WO2016104310A1 (ja) | 液晶表示装置 | |
US20160091751A1 (en) | Liquid crystal display device |
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: 17887708 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: 17887708 Country of ref document: EP Kind code of ref document: A1 |