WO2017147953A1 - 一种光源、背光模组以及显示装置 - Google Patents

一种光源、背光模组以及显示装置 Download PDF

Info

Publication number
WO2017147953A1
WO2017147953A1 PCT/CN2016/077112 CN2016077112W WO2017147953A1 WO 2017147953 A1 WO2017147953 A1 WO 2017147953A1 CN 2016077112 W CN2016077112 W CN 2016077112W WO 2017147953 A1 WO2017147953 A1 WO 2017147953A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
guide plate
light guide
light emitting
backlight module
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/CN2016/077112
Other languages
English (en)
French (fr)
Inventor
徐鹏博
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
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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 Shenzhen China Star Optoelectronics Technology Co Ltd, Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US15/027,263 priority Critical patent/US20180081109A1/en
Publication of WO2017147953A1 publication Critical patent/WO2017147953A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • G02B6/0011—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—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
    • G02B6/0081—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a light source, a backlight module, and a display device.
  • Current display devices such as backlights for mobile phones, typically include a light source LED (Light-Emitting) Sheets such as Diodes, light-emitting diodes, light guides, reflective sheets, and diffusers.
  • the light source LED is disposed opposite to the light guide plate, so that the light emitted by the light source LED can enter the light guide plate to guide the light.
  • a reflective sheet is disposed at the bottom of the light guide plate for reflecting light into the light guide plate.
  • a sheet such as a diffusion sheet is disposed above the light guide plate to illuminate the light emitted from the light guide plate and increase the brightness.
  • the light guide plate of the prior art is configured as a bell mouth at one end close to the light source LED to completely receive the light emitted by the light source LED, and further, in order to prevent light leakage, the speaker is disposed at the structure of the bell mouth.
  • Black PET Polyethylene Terephthalate, a high polymer material used to absorb light from a light source LED.
  • one end of the light guide plate is formed with a bell mouth structure, the production process of the light guide plate is limited, and on the other hand, light absorption is reduced due to absorption of light using a black PET material.
  • the technical problem to be solved by the present invention is to provide a light source, a backlight module and a display device, which can improve the utilization of light and reduce the production difficulty of the light guide plate.
  • a technical solution adopted by the present invention is to provide a light source, the light source comprising: a light emitting crystal for emitting light; and an optical cavity comprising a light emitting portion, a transmitting portion and a light exiting portion, wherein the light emitting crystal
  • the light-emitting portion is connected to the light-emitting portion and the light-emitting portion, and the light-emitting port of the light-emitting portion is disposed corresponding to the light guide plate, and the width of the light-emitting port is not greater than the thickness of the light guide plate, and a reflective material is further disposed in the light cavity, and the light-emitting crystal is emitted.
  • Part of the light enters the light guide plate directly, and the other part enters the light guide plate after being reflected by the reflective material one or more times.
  • the width of the light exit portion gradually decreases from the end near the transport portion to the light exit port.
  • the light-emitting portion gradually becomes smaller from one end closer to the transport portion toward the end farther from the transport portion.
  • a backlight module which includes a light source and a light guide plate, wherein the light source includes:
  • the light cavity includes a light-emitting portion, a light-transmitting portion, and a light-emitting portion.
  • the light-emitting crystal is disposed in the light-emitting portion, and the light-transmitting portion is connected to the light-emitting portion and the light-emitting portion.
  • the light-emitting port of the light-emitting portion is disposed corresponding to the light guide plate, and the width of the light-emitting port is not greater than
  • the thickness of the light guide plate is further provided with a reflective material in the optical cavity, and a part of the light emitted by the light emitting crystal directly enters the light guide plate, and another part is reflected by the reflective material one or more times and then enters the light guide plate.
  • the width of the light exit portion gradually decreases from the end near the transport portion to the light exit port.
  • the light-emitting portion gradually becomes smaller from one end closer to the transport portion toward the end farther from the transport portion.
  • the light guide plate has a flat structure.
  • the backlight module further includes a reflective sheet disposed under the light guide plate for reflecting incident light back into the light guide plate.
  • the backlight module further includes an optical film disposed above the light guide plate, and the optical film is used for diffusing and averaging light emitted from the light guide plate.
  • a display device which includes a backlight module and a display panel disposed above the backlight module, wherein the backlight module includes a light source and a light guide plate.
  • the light source includes: a light-emitting crystal for emitting light; the light cavity includes a light-emitting portion, a transmitting portion, and a light-emitting portion, wherein the light-emitting crystal is disposed in the light-emitting portion, and the light-transmitting portion is connected to the light-emitting portion and the light-emitting portion, and the light-emitting portion is emitted.
  • the mouth is correspondingly arranged with the light guide plate, and the width of the light exit port is not greater than the thickness of the light guide plate, and the reflective material is further disposed in the light cavity, and a part of the light emitted by the light emitting crystal directly enters the light guide plate, and the other part is reflected by the reflective material one or more times. Enter the light guide.
  • the width of the light exit portion gradually decreases from the end near the transport portion to the light exit port.
  • the light-emitting portion gradually becomes smaller from one end closer to the transport portion toward the end farther from the transport portion.
  • the light guide plate has a flat structure.
  • the backlight module further includes a reflective sheet disposed under the light guide plate for reflecting incident light back into the light guide plate.
  • the backlight module further includes an optical film disposed above the light guide plate, and the optical film is used for diffusing and averaging light emitted from the light guide plate.
  • the light source of the present invention comprises a light emitting crystal and an optical cavity, wherein the light emitting crystal is used for emitting light, and the light cavity comprises a light emitting portion, a transmitting portion and a light exiting portion, wherein the light emitting is different from the prior art.
  • the crystal is disposed in the light-emitting portion, and the light-transmitting portion is connected to the light-emitting portion and the light-emitting portion.
  • the light-emitting port of the light-emitting portion is disposed corresponding to the light guide plate, and the width of the light-emitting port is not greater than the thickness of the light guide plate, and the reflective material is further disposed in the light cavity.
  • the light source of the present invention can make full use of light by the reflective material, thereby improving the utilization of light.
  • FIG. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present invention.
  • the backlight module 10 of the present embodiment includes a light source 11 and a light guide plate 12 .
  • the light source 11 includes a light emitting crystal 111 and an optical cavity 112.
  • the luminescent crystal 111 is used to emit light.
  • the optical cavity 112 includes a light emitting portion 121, a transmitting portion 122, and a light exit portion 123.
  • the light-emitting crystal 111 is disposed in the light-emitting portion 121. More specifically, the light-emitting crystal 111 is disposed at one end of the light-emitting portion 121 away from the transport portion 122. In other embodiments, for example, in a large-sized display device, if the number of the light-emitting crystals 111 is large, it can be uniformly distributed in the light-emitting portion 121.
  • the transmission unit 122 connects the light emitting unit 121 and the light exit unit 123.
  • the transmission portion 122 is for transmitting the light emitted from the light-emitting crystal 111 in the light-emitting portion 121 to the light-emitting portion 123.
  • the light exit opening 1231 of the light exiting portion 123 is disposed corresponding to the light guide plate 12, and the width of the light exit opening 1231 is not greater than the thickness of the light guide plate 12, so that the light output from the light exit port 1231 can completely enter the light guide plate 12, preventing light from exiting the light exit port. Leaked out at 1231.
  • the light chamber 12 is further provided with a reflective material 124. A part of the light emitted by the light-emitting crystal 111 directly enters the light guide plate 12, and another part is reflected by the reflective material 124 one or more times and then enters the light guide plate 12.
  • the light source 11 of the present invention can fully utilize light by the reflective material 124, thereby improving the utilization of light.
  • the optical simulation experiment shows that the backlight module of the prior art has an energy of 0.70194 W when the input energy is 1 W, and the backlight module 10 of the present embodiment uses the energy of 0.87651 W when the input energy is 1 W. Therefore, it can be seen that the backlight module 10 of the present embodiment has an improvement in light utilization rate of about 17% compared to the backlight module of the prior art.
  • the width of the light exit portion 123 gradually decreases from the end closer to the transport portion 122 toward the light exit port 1231. That is, the width of the light exit portion 123 gradually decreases from the end remote from the light guide plate 12 toward the end closer to the light guide plate 12, so that the end of the light guide plate 12, that is, the width of the light exit opening 1231 is not greater than the thickness of the light guide plate 12. Further, the light-emitting portion 121 gradually becomes smaller from one end closer to the transport portion 122 toward the end away from the transport portion 122.
  • the light source 11 is formed into a wedge-shaped structure which is large in the middle and small in both ends.
  • the light-emitting portion 121 of the present embodiment is not affected by the size of the outlet 1231 of the light-emitting portion 123, and the light-emitting portion 121 can still be provided with sufficient space to set the light-emitting crystal 111, which does not increase the production difficulty of the light-emitting portion 121.
  • the illuminating crystal 111 avoids the problem that the light cannot be normally emitted due to insufficient space.
  • the width of the light exit opening 1231 of the light exit portion 123 of the embodiment can be made small enough to match the light guide plate 12, and the width of the light exit opening 1231 as described above is not greater than the thickness of the light guide plate 12, thereby preventing light. Leaked out.
  • the light guide plate 12 is preferably a flat plate structure. It is not necessary to provide a large thickness at one end close to the light exit portion 123 to form a bell mouth structure. Therefore, the light guide plate 12 of the embodiment can be produced only by the hot press forming process, and the bell mouth is not processed, which reduces the difficulty in producing the light guide plate 12.
  • the backlight module 10 of the embodiment can not only improve the utilization of light, but also reduce the production difficulty of the light guide plate 12.
  • the backlight module 10 further includes a reflective sheet 13 disposed under the light guide plate 12 for reflecting incident light back into the light guide plate 12. Further, in order to prevent light from leaking from the light source 11, the embodiment further extends the reflection sheet 13 below the light source 11 for reflecting the light leaked from the light source 11.
  • the backlight module 10 further includes an optical film 14 disposed above the light guide plate 12 for diffusing and condensing light emitted from the light guide plate 12.
  • the optical film 14 includes a diffusion sheet 141, a lower prism sheet 142, and an upper prism sheet 143.
  • the diffusion sheet 141, the lower prism sheet 142, and the upper prism sheet 143 are sequentially disposed above the light guide plate 12.
  • the diffusion sheet 141 diffuses the light emitted from the light guide plate 12, and the upper prism sheet 143 and the lower prism sheet 142 are used to align the light emitted from the diffusion sheet 141 and increase the brightness of the light.
  • FIG. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • the display device 20 of the present embodiment includes a backlight module 21 and a display panel 22 disposed above the backlight module 21 , wherein the backlight module 21 is configured to provide light to the display panel 22 .
  • the backlight module 21 of the present embodiment is the backlight module 10 described above, and details are not described herein again.
  • the light source 11 of the present invention can fully utilize the light by the reflective material 124, thereby improving the utilization of light and reducing the production difficulty of the light guide plate 12.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种光源(11)、背光模组(10)以及显示装置(20)。光源(11)包括发光晶体(111)和光腔(112)。其中，发光晶体(111)用于发射出光线。光腔(112)包括发光部(121)、传输部(122)和出光部(123)，其中，发光晶体(111)设置在发光部(121)中，传输部(122)连接发光部(121)和出光部(123)，出光部(123)的出光口(1231)与导光板(12)对应设置，且出光口(1231)的宽度不大于导光板(12)的厚度，光腔内进一步设置有反射材质(124)，发光晶体(111)发射的光线一部分直接进入导光板(12)，另一部分经过反射材质(124)一次或多次反射后进入导光板(12)。上述方式能够提高光的利用率。

Description

一种光源、背光模组以及显示装置
【技术领域】
本发明涉及显示技术领域，尤其是涉及一种光源、背光模组以及显示装置。
【背景技术】
现行显示装置，如手机的背光源通常包括光源LED（Light-Emitting Diode，发光二极管）、导光板、反射片以及扩散片等片材。其中，光源LED与导光板相对设置，使得光源LED发出的光能够进入导光板内部进行光的导向。反射片设置在导光板的底部，用于将光反射到导光板内。扩散片等片材设置在导光板的上方，用于将导光板出射的光进行匀光和提高亮度。现有技术的导光板为了配合光源LED的尺寸，因此在靠近光源LED的一端设置为喇叭口的结构，以完全接收光源LED发出的光，进一步的，为了防止漏光，在喇叭口的结构处设置黑色PET（Polyethylene Terephthalate，高聚合物）材料，用于吸收光源LED发出的光。
但是由于导光板的一端做成了喇叭口的结构，使得导光板的生产工艺受到限制，另一方面，由于使用黑色PET材料吸光，降低了光的利用率。
【发明内容】
本发明主要解决的技术问题是提供一种光源、背光模组以及显示装置，能够提高光的利用率，并且降低导光板的生产难度。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种光源，该光源包括：发光晶体，用于发射出光线；光腔，包括发光部、传输部和出光部，其中，发光晶体设置在发光部中，传输部连接发光部和出光部，出光部的出光口与导光板对应设置，且出光口的宽度不大于导光板的厚度，光腔内进一步设置有反射材质，发光晶体发射的光线一部分直接进入导光板，另一部分经过反射材质一次或多次反射后进入导光板。
其中，出光部的宽度自靠近传输部的一端向出光口逐渐变小。
其中，发光部自靠近传输部的一端向远离传输部的一端逐渐变小。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种背光模组，该背光模组包括光源和导光板，其中光源包括：
发光晶体，用于发射出光线；
光腔，包括发光部、传输部和出光部，其中，发光晶体设置在发光部中，传输部连接发光部和出光部，出光部的出光口与导光板对应设置，且出光口的宽度不大于导光板的厚度，光腔内进一步设置有反射材质，发光晶体发射的光线一部分直接进入导光板，另一部分经过反射材质一次或多次反射后进入导光板。
其中，出光部的宽度自靠近传输部的一端向出光口逐渐变小。
其中，发光部自靠近传输部的一端向远离传输部的一端逐渐变小。
其中，导光板为平板状结构。
其中，背光模组还包括反射片，设置在导光板的下方，用于将入射的光线反射回导光板内。
其中，背光模组还包括设置在导光板上方的光学膜片，光学膜片用于对从导光板出射的光进行扩散和匀光。
为解决上述技术问题，本发明采用的又一个技术方案是：提供一种显示装置，该显示装置包括背光模组和设置在背光模组上方的显示面板，其中，背光模组包括光源和导光板，其中光源包括：发光晶体，用于发射出光线；光腔，包括发光部、传输部和出光部，其中，发光晶体设置在发光部中，传输部连接发光部和出光部，出光部的出光口与导光板对应设置，且出光口的宽度不大于导光板的厚度，光腔内进一步设置有反射材质，发光晶体发射的光线一部分直接进入导光板，另一部分经过反射材质一次或多次反射后进入导光板。
其中，出光部的宽度自靠近传输部的一端向出光口逐渐变小。
其中，发光部自靠近传输部的一端向远离传输部的一端逐渐变小。
其中，导光板为平板状结构。
其中，背光模组还包括反射片，设置在导光板的下方，用于将入射的光线反射回导光板内。
其中，背光模组还包括设置在导光板上方的光学膜片，光学膜片用于对从导光板出射的光进行扩散和匀光。
本发明的有益效果是：区别于现有技术的情况，本发明的光源包括发光晶体和光腔，其中，发光晶体用于发射出光线，光腔包括发光部、传输部和出光部，其中，发光晶体设置在发光部中，传输部连接发光部和出光部，出光部的出光口与导光板对应设置，且出光口的宽度不大于导光板的厚度，光腔内进一步设置有反射材质，发光晶体发射的光线一部分直接进入导光板，另一部分经过反射材质一次或多次反射后进入导光板。因此，本发明的光源可以通过反射材质对光进行充分的利用，提高了光的利用率。
【附图说明】
图1是本发明实施例提供的一种背光模组的结构示意图；
图2是本发明实施例提供的一种显示装置的结构示意图。
【具体实施方式】
请参阅图1，图1是本发明实施例提供的一种背光模组的结构示意图。如图1所示，本实施例的背光模组10包括光源11和导光板12。
其中，光源11包括发光晶体111和光腔112。
发光晶体111用于发射出光线。
光腔112包括发光部121、传输部122和出光部123。其中，发光晶体111设置在发光部121中。更具体的，发光晶体111设置在发光部121的远离传输部122的一端。在其他实施例中，例如大尺寸的显示装置中，若发光晶体111所需的数量较多，则可以均匀的分布在发光部121中。
传输部122连接发光部121和出光部123。传输部122用于将发光部121中的发光晶体111发出的光线传输到出光部123。
出光部123的出光口1231与导光板12对应设置，且出光口1231的宽度不大于导光板12的厚度，使得从出光口1231输出的光线能够完全进入导光板12中，防止了光线从出光口1231处漏出。
光腔12内进一步设置有反射材质124，发光晶体111发射的光线一部分直接进入导光板12，另一部分经过反射材质124一次或多次反射后进入导光板12。
因此，本发明的光源11可以通过反射材质124对光进行充分的利用，提高了光的利用率。经过光学仿真实验得出，现有技术的背光模组在输入能量为1W时，被利用能量为0.70194W，而本实施例的背光模组10在输入能量为1W时，被利用能量为0.87651W，由此可知本实施例的背光模组10相比于现有技术的背光模组，光的利用率提高了17%左右。
本实施例中，出光部123的宽度自靠近传输部122的一端向出光口1231逐渐变小。也就是说，出光部123的宽度自远离导光板12的一端向靠近导光板12的一端逐渐变小，使得靠近导光板12的一端，即出光口1231的宽度不大于导光板12的厚度。进一步的，发光部121自靠近传输部122的一端向远离传输部122的一端逐渐变小。使得光源11形成一个中间大，两头小的楔形结构。因此，本实施例的发光部121不会受到出光部123的出口1231的大小的影响，发光部121仍然可设置足够的空间来设置发光晶体111，这一方面不会提高发光部121的生产难度，另一方面使得发光晶体111避免了因空间不够而无法正常的发射出光线的问题。再者，本实施例的出光部123的出光口1231的宽度又可以做到足够小来搭配导光板12，如前文所述的出光口1231的宽度不大于导光板12的厚度，从而防止了光线的漏出。
由于出光部123的出光口1231的宽度可以设置为小于或等于导光板12的厚度，因此，本实施例中，导光板12优选为平板状结构。不需要在靠近出光部123的一端设置较大的厚度，形成喇叭口结构。因此，本实施例的导光板12只需热压成型工艺即可生产，不要再加工喇叭口，这就降低了导光板12的生产难度。
综上所述，本实施例背光模组10不仅可以提高光的利用率，还可以降低导光板12的生产难度。
本实施例中，背光模组10还包括反射片13，设置在导光板12的下方，用于将入射的光线反射回导光板12内。进一步的，为了防止光线从光源11部分漏出，本实施例进一步将反射片13延长到光源11的下方，用于对光源11处漏出的光进行反射。
进一步的，背光模组10还包括设置在导光板12上方的光学膜片14，光学膜片14用于对从导光板12出射的光进行扩散和匀光。具体的，光学膜片14包括扩散片141、下棱镜片142以及上棱镜片143。扩散片141、下棱镜片142以及上棱镜片143依次设置在导光板12的上方。扩散片141对导光板12出射的光进行扩散，上棱镜片143和下棱镜片142用于对从扩散片141出射的光进行匀光，并提高光的亮度。
本发明实施例还提供了一种显示装置，请参阅图2，图2为本发明实施例提供的显示装置的结构示意图。如图2所示，本实施例的显示装置20包括背光模组21和设置在背光模组21上方的显示面板22，其中，背光模组21用于为显示面板22提供光线。本实施例的背光模组21为前文所述的背光模组10，在此不再赘述。
因此，本发明的光源11可以通过反射材质124对光进行充分的利用，提高了光的利用率，还可以降低导光板12的生产难度。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (15)

  1. 一种光源，其中，所述光源包括：
    发光晶体，用于发射出光线；
    光腔，包括发光部、传输部和出光部，其中，所述发光晶体设置在所述发光部中，所述传输部连接所述发光部和所述出光部，所述出光部的出光口与导光板对应设置，且所述出光口的宽度不大于所述导光板的厚度，所述光腔内进一步设置有反射材质，所述发光晶体发射的光线一部分直接进入导光板，另一部分经过所述反射材质一次或多次反射后进入所述导光板。
  2. 根据权利要求1所述的光源，其中，所述出光部的宽度自靠近所述传输部的一端向所述出光口逐渐变小。
  3. 根据权利要求2所述的光源，其中，所述发光部自靠近所述传输部的一端向远离所述传输部的一端逐渐变小。
  4. 一种背光模组，其中，所述背光模组包括光源和导光板，其中所述光源包括：
    发光晶体，用于发射出光线；
    光腔，包括发光部、传输部和出光部，其中，所述发光晶体设置在所述发光部中，所述传输部连接所述发光部和所述出光部，所述出光部的出光口与所述导光板对应设置，且所述出光口的宽度不大于所述导光板的厚度，所述光腔内进一步设置有反射材质，所述发光晶体发射的光线一部分直接进入导光板，另一部分经过所述反射材质一次或多次反射后进入所述导光板。
  5. 根据权利要求4所述的背光模组，其中，所述出光部的宽度自靠近所述传输部的一端向所述出光口逐渐变小。
  6. 根据权利要求5所述的背光模组，其中，所述发光部自靠近所述传输部的一端向远离所述传输部的一端逐渐变小。
  7. 根据权利要求4所述的背光模组，其中，所述导光板为平板状结构。
  8. 根据权利要求4所述的背光模组，其中，所述背光模组还包括反射片，设置在所述导光板的下方，用于将入射的光线反射回所述导光板内。
  9. 根据权利要求8所述的背光模组，其中，所述背光模组还包括设置在所述导光板上方的光学膜片，所述光学膜片用于对从所述导光板出射的光进行扩散和匀光。
  10. 一种显示装置，其中，所述显示装置包括背光模组和设置在所述背光模组上方的显示面板，其中，所述背光模组包括光源和导光板，其中所述光源包括：
    发光晶体，用于发射出光线；
    光腔，包括发光部、传输部和出光部，其中，所述发光晶体设置在所述发光部中，所述传输部连接所述发光部和所述出光部，所述出光部的出光口与所述导光板对应设置，且所述出光口的宽度不大于所述导光板的厚度，所述光腔内进一步设置有反射材质，所述发光晶体发射的光线一部分直接进入导光板，另一部分经过所述反射材质一次或多次反射后进入所述导光板。
  11. 根据权利要求10所述的显示装置，其中，所述出光部的宽度自靠近所述传输部的一端向所述出光口逐渐变小。
  12. 根据权利要求11所述的显示装置，其中，所述发光部自靠近所述传输部的一端向远离所述传输部的一端逐渐变小。
  13. 根据权利要求10所述的显示装置，其中，所述导光板为平板状结构。
  14. 根据权利要求10所述的显示装置，其中，所述背光模组还包括反射片，设置在所述导光板的下方，用于将入射的光线反射回所述导光板内。
  15. 根据权利要求14所述的显示装置，其中，所述背光模组还包括设置在所述导光板上方的光学膜片，所述光学膜片用于对从所述导光板出射的光进行扩散和匀光。
PCT/CN2016/077112 2016-03-03 2016-03-23 一种光源、背光模组以及显示装置 Ceased WO2017147953A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/027,263 US20180081109A1 (en) 2016-03-03 2016-03-23 Light Source, Backlight Module And Display Device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610120559.7 2016-03-03
CN201610120559.7A CN105757533A (zh) 2016-03-03 2016-03-03 一种光源、背光模组以及显示装置

Publications (1)

Publication Number Publication Date
WO2017147953A1 true WO2017147953A1 (zh) 2017-09-08

Family

ID=56332444

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/077112 Ceased WO2017147953A1 (zh) 2016-03-03 2016-03-23 一种光源、背光模组以及显示装置

Country Status (3)

Country Link
US (1) US20180081109A1 (zh)
CN (1) CN105757533A (zh)
WO (1) WO2017147953A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107589594B (zh) 2017-09-25 2021-01-26 京东方科技集团股份有限公司 一种可调反射装置、背光模组及显示装置
CN111780053A (zh) * 2019-04-03 2020-10-16 阳睐（上海）光电科技有限公司 一种发光装置
CN115343882A (zh) * 2022-10-18 2022-11-15 广州华星光电半导体显示技术有限公司 显示面板及显示装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1469167A (zh) * 2002-06-29 2004-01-21 ���ǵ�����ʽ���� 照明装置、背光组件和配有此装置和组件的液晶显示设备
US20040160757A1 (en) * 2003-02-17 2004-08-19 Kuo Heng Sheng Backlight module
CN1570719A (zh) * 2003-07-19 2005-01-26 鸿富锦精密工业（深圳）有限公司 光源系统及背光模组
CN201487710U (zh) * 2009-03-19 2010-05-26 深圳华映显示科技有限公司 一种背光模块及液晶显示装置
CN102369465A (zh) * 2008-10-17 2012-03-07 布勒索特克斯有限公司 光导及包括光导的照明组件
CN104421770A (zh) * 2013-09-11 2015-03-18 联想(北京)有限公司 一种背光模组及显示装置
CN105371236A (zh) * 2014-08-27 2016-03-02 鸿富锦精密工业（深圳）有限公司 导光罩以及使用该导光罩的照明装置及背光装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1602203A (zh) * 1968-07-19 1970-10-26
US6219117B1 (en) * 1996-06-12 2001-04-17 Alps Electric Co., Ltd. Liquid crystal display device
US7736044B2 (en) * 2006-05-26 2010-06-15 Avago Technologies General Ip (Singapore) Pte. Ltd. Indirect lighting device for light guide illumination
TWM317024U (en) * 2006-07-25 2007-08-11 Longtech Systems Corp Brightness improved structure of lateral backlight for LCD
US20080049445A1 (en) * 2006-08-25 2008-02-28 Philips Lumileds Lighting Company, Llc Backlight Using High-Powered Corner LED
TWI439641B (zh) * 2007-05-20 2014-06-01 3M Innovative Properties Co 用於側面發光型背光之準直光注入器
KR101597335B1 (ko) * 2008-11-17 2016-02-24 삼성디스플레이 주식회사 가요성 도광필름을 이용하는 백라이트 어셈블리 및 이를 포함하는 액정표시모듈
WO2014006501A1 (en) * 2012-07-03 2014-01-09 Yosi Shani Planar remote phosphor illumination apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1469167A (zh) * 2002-06-29 2004-01-21 ���ǵ�����ʽ���� 照明装置、背光组件和配有此装置和组件的液晶显示设备
US20040160757A1 (en) * 2003-02-17 2004-08-19 Kuo Heng Sheng Backlight module
CN1570719A (zh) * 2003-07-19 2005-01-26 鸿富锦精密工业（深圳）有限公司 光源系统及背光模组
CN102369465A (zh) * 2008-10-17 2012-03-07 布勒索特克斯有限公司 光导及包括光导的照明组件
CN201487710U (zh) * 2009-03-19 2010-05-26 深圳华映显示科技有限公司 一种背光模块及液晶显示装置
CN104421770A (zh) * 2013-09-11 2015-03-18 联想(北京)有限公司 一种背光模组及显示装置
CN105371236A (zh) * 2014-08-27 2016-03-02 鸿富锦精密工业（深圳）有限公司 导光罩以及使用该导光罩的照明装置及背光装置

Also Published As

Publication number Publication date
CN105757533A (zh) 2016-07-13
US20180081109A1 (en) 2018-03-22

Similar Documents

Publication Publication Date Title
WO2013185368A1 (zh) 一种背光模组和液晶显示装置
WO2017177488A1 (zh) 双面液晶显示装置及其背光模组
WO2012071749A1 (zh) 拼接式导光板构造及背光模块
TWI320123B (en) Backlight module and liquid crystal display device using the same
TW200825553A (en) Backlight module
WO2017206290A1 (zh) 背光模组以及液晶显示器
WO2017173700A1 (zh) 背光模组及液晶显示装置
WO2013174032A1 (zh) 背光模组及液晶显示装置
WO2020000729A1 (zh) 反射片、侧入式背光模组及液晶显示器
CN206557427U (zh) 背光模组及液晶显示装置
WO2019227797A1 (zh) 背光模组及显示装置
WO2016155030A1 (zh) 显示面板及显示装置
CN206339809U (zh) 一种背光模组及液晶显示装置
WO2013185364A1 (zh) 面光源及显示装置
CN211741786U (zh) 双屏幕显示装置
WO2017147953A1 (zh) 一种光源、背光模组以及显示装置
TW200411277A (en) Surface light module and liquid crystal display using the same
WO2014067191A1 (zh) 背光模块及显示装置
WO2017152435A1 (zh) 背光模组及液晶显示器
WO2016155037A1 (zh) 一种背光模组以及显示装置
US20190123592A1 (en) Wireless charging device and display device
WO2014071646A1 (zh) 一种日光辅助的直下式背光模组及液晶显示器
WO2017173703A1 (zh) 一种背光模组以及液晶显示器
WO2017088202A1 (zh) 一种液晶显示面板及液晶显示装置
WO2014019241A1 (zh) 一种光照组件

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 15027263

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

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

Ref document number: 16892144

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16892144

Country of ref document: EP

Kind code of ref document: A1