WO2020029676A1 - 背光模组、液晶显示模组和电子装置 - Google Patents

背光模组、液晶显示模组和电子装置 Download PDF

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Publication number
WO2020029676A1
WO2020029676A1 PCT/CN2019/090553 CN2019090553W WO2020029676A1 WO 2020029676 A1 WO2020029676 A1 WO 2020029676A1 CN 2019090553 W CN2019090553 W CN 2019090553W WO 2020029676 A1 WO2020029676 A1 WO 2020029676A1
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WIPO (PCT)
Prior art keywords
light
hole
backlight module
light guide
film
Prior art date
Application number
PCT/CN2019/090553
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English (en)
French (fr)
Inventor
陆忠恒
欧阳志斌
杨乐
袁学剑
吴安平
Original Assignee
Oppo广东移动通信有限公司
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
Priority claimed from CN201821294899.2U external-priority patent/CN208421474U/zh
Priority claimed from CN201810929715.3A external-priority patent/CN108710241A/zh
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2020029676A1 publication Critical patent/WO2020029676A1/zh

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    • 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

Definitions

  • the present application relates to the field of display technology, and in particular, to a backlight module, a liquid crystal display module, and an electronic device.
  • Electronic devices such as mobile phones with a large screen ratio are increasingly favored by users.
  • functional devices such as a distance sensor and a light sensor may be installed below the display assembly.
  • Embodiments of the present application provide a backlight module, a liquid crystal display module, and an electronic device.
  • the backlight module of the liquid crystal display module includes a light-increasing layer, a diffusion film, a light guide plate, and a reflective sheet that are sequentially stacked.
  • the light-increasing layer includes a first light-through hole and a first light-through hole. Configured to align with a functional device disposed on the side of the reflective sheet facing away from the light guide plate, so that light emitted by the functional device exits the backlight module through the first light-through hole, and / Alternatively, the functional device can receive light incident from the backlight module and passing through the first light-through hole.
  • the liquid crystal display module includes a backlight module and a liquid crystal display screen.
  • the backlight module includes a light-increasing layer, a diffusion film, a light guide plate, and a reflective sheet that are sequentially stacked.
  • the light-increasing layer includes a first channel.
  • the first light through hole is configured to be aligned with a functional device provided on a side of the reflective sheet facing away from the light guide plate, so that light emitted by the functional device exits through the first light through hole To the outside of the backlight module, and / or to enable the functional device to receive light incident from outside the backlight module and passing through the first through-hole; the liquid crystal display screen is disposed away from the light-increasing layer.
  • the diffusion film is on one side.
  • the electronic device includes a backlight module and a functional device.
  • the backlight module includes a light-increasing layer, a diffusion film, a light guide plate, and a reflective sheet that are sequentially stacked.
  • the light-increasing layer is provided with a first light-through hole.
  • the functional device is disposed on a side of the reflective sheet facing away from the light guide plate and is aligned with the first light through hole, and the functional device is configured to emit the light through the first light through hole to the outside of the backlight module. Light, and / or receiving light incident from outside the backlight module through the first light hole.
  • FIG. 1 is an exploded schematic view of a backlight module according to an embodiment of the present application.
  • FIG. 1 are schematic perspective views of different embodiments of the light enhancement layer of FIG. 1;
  • FIG. 7 to 10 are exploded views of different embodiments of the light enhancement layer of FIG. 1;
  • FIG. 11 is a schematic cross-sectional view of the first light enhancement film of FIGS. 7 to 10;
  • FIG. 12 is an exploded schematic view of another embodiment of the light enhancement layer of FIG. 1; FIG.
  • FIG. 13 is a schematic cross-sectional view of the first light enhancement film of FIG. 12;
  • FIG. 14 is a schematic perspective view of the light enhancement layer of FIG. 1;
  • FIG. 15 is an exploded view of another embodiment of the backlight module of FIG. 1;
  • FIG. 16 is a schematic perspective view of the reflection sheet of FIG. 15;
  • FIG. 17 is an exploded schematic view of another embodiment of the backlight module of FIG. 1;
  • FIG. 18 is a schematic perspective view of a diffusion film of the backlight module of FIG. 17;
  • FIG. 19 is an exploded schematic view of another embodiment of the backlight module of FIG. 1;
  • 20 to 21 are schematic cross-sectional views of different embodiments of the light guide plate of the backlight module of FIG. 19;
  • 22 to 23 are exploded views of different embodiments of the backlight module of FIG. 1;
  • FIG. 24 is a schematic cross-sectional view of the backlight module of FIG. 23;
  • FIG. 25 is an exploded schematic view of another embodiment of the backlight module of FIG. 1;
  • 26 to 29 are schematic cross-sectional views of different embodiments of the backlight module of FIG. 25;
  • FIG. 30 is an exploded schematic view of a liquid crystal display module according to an embodiment of the present application.
  • FIG. 31 is an exploded view of another embodiment of the liquid crystal display module of FIG. 30; FIG.
  • FIG. 33 is a schematic cross-sectional view of the electronic device of FIG. 32.
  • Backlight module 10 elastic frame 11, light-enhancing layer 12, first light-enhancing region 121, second light-enhancing region 122, first light-through hole 124, light-transmitting material 1242, first light-enhancing film 126, second light-enhancing film 128, Protrusion 129, protrusion 129 ', support frame 13, substrate 132, fourth light through hole 1322, side wall 134, receiving space 136, diffusion film 14, light diffusion region 142, third light through hole 144, light transmitting material 1442, light guide plate 16, light guide point 162, first light guide 164, second light guide 166, reflective sheet 18, second light hole 182, light transmitting material 1822, backlight 19, liquid crystal display module 100 , LCD screen 20, cover 30, electronic device 1000, housing 200, and functional device 300.
  • a backlight module 10 of a liquid crystal display module includes a light-increasing layer 12, a diffusion film 14, a light guide plate 16, and a reflection sheet 18 that are stacked in this order.
  • the light-enhancing layer 12 is provided with a first light-through hole. 124.
  • the first light-passing hole 124 is configured to align with the functional device 300 disposed on the side of the reflecting sheet 18 facing away from the light guide plate 16, so that the light emitted by the functional device 300 is emitted to the backlight module 10 through the first light-passing hole 124.
  • the functional device 300 to receive light incident from the backlight module 10 and passing through the first light hole 124.
  • first light through hole 124 is aligned with the functional device 300, and the orthographic projection of the first light through hole 124 on the light guide plate 16 may cover the orthographic projection of the functional device 300 on the light guide plate 16.
  • the backlight module 10 improves the local light transmittance of the backlight module 10 by opening the first light through hole 124, which can reduce the influence of the backlight module 10 on the functional device 300, so that the functional device 300 can be better.
  • the ground emits light to the outside of the backlight module 10 or receives light outside the backlight module 10 through the first light-through hole 124, thereby ensuring the normal operation of the functional device 300.
  • the first light through hole 124 may be located at any position of the light enhancement layer 12, and the position of the first light through hole 124 is not limited herein.
  • the first light through hole 124 is at the upper right corner of the light enhancement layer 12, as shown in FIG. 2; in another example, the first light through hole 124 is at the lower left corner of the light enhancement layer 12, as shown in FIG. In another example, the center of the first light-through hole 124 coincides with the center of the light enhancement layer 12, as shown in FIG. 4.
  • the shape of the first light transmitting hole 124 may be any shape such as a circle, an ellipse, a square, a rectangle, a trapezoid, or an irregular polygon, and the shape of the first light transmitting hole 124 is not limited herein.
  • the light-enhancing layer 12 may include one first light-through hole 124 or a plurality of first light-through holes 124, and the number of the first light-through holes 124 is not limited herein.
  • the light-enhancing layer 12 includes one first light-through hole 124; in the example of FIG. 5, the light-enhancing layer 12 includes three first light-through holes 124; in the example of FIG. 6, the light-enhancing layer 12 Includes five first light-passing holes 124.
  • the light-enhancing layer 12 includes a first light-enhancing film 126 and a second light-enhancing film 128 laminated on the side of the first light-enhancing film 126 facing the diffusion film 14. At least one of 126 and the second light-increasing film 128 includes a first light-passing hole 124.
  • first light-increasing film 126 and the second light-increasing film 128 may be selectively provided with the first light-through hole 124 according to actual needs.
  • first light-increasing film 126 and the second light-increasing film 128 includes the first light-passing hole 124” here includes three cases:
  • Only the first light-increasing film 126 includes a first light-passing hole 124, as shown in FIG. 7;
  • Only the second light enhancement film 128 includes the first light through hole 124, as shown in FIG. 8;
  • Each of the first light-enhancing film 126 and the second light-enhancing film 128 includes a first light-through hole 124, and the first light-through hole 124 on the first light-enhancing film 126 is aligned with the first light-through hole 124 on the second light-enhancing film 128. , As shown in Figure 9.
  • the second light enhancement film 128 is provided with a first light through hole 124, a plurality of protrusions are formed on a surface of the first light enhancement film 126 corresponding to the first light through hole 124. From 129, a plurality of protrusions 129 are arranged in an array.
  • the light output brightness of the first light enhancement film 126 corresponding to the first light through hole 124 is relatively low, which may easily cause a user's visual sense.
  • a plurality of protrusions 129 are formed on the first light-enhancing film 126, so that a part of the light having a larger deviation direction from the thickness direction of the first light-enhancing film 126 can be re-entered into other light after exiting from the first light-enhancing film 126.
  • a second light-enhancing film 128 is provided with a first light-through hole 124.
  • a plurality of protrusions 129 are formed on a surface of the first light-enhancing film 126.
  • the light-enhancing layer 12 includes a first light-enhancing region 121. With the second light-increasing area 122, the first light-increasing area 121 is aligned with the first light-through hole 124, and the density of the protrusions 129 'located in the first light-increasing area 121 is greater than the density of the protrusions 129' located in the second light-increasing area 122.
  • the arrangement of the protrusions 129 ' can compensate for the visual difference caused by the opening of the first light-passing hole 124.
  • the density of the protrusions 129 'of the first light-increasing region 121 is greater than the density of the protrusions 129' of the second light-increasing region 122, which can increase the light guide amount of the first light-increasing region 121 in the thickness direction of the light-enhancing layer 12, thereby increasing the liquid crystal display.
  • the amount of light emitted from the area corresponding to the module 100 and the first light-through hole 124 can further compensate for the darkening of the first light-through hole 124, which is beneficial to reducing visual discomfort for the user.
  • the density of the protrusions 129 'located in the second light-increasing region 122 gradually increases.
  • the second light-increasing area 122 gradually becomes brighter, thereby making the user more visually comfortable and further improving the user experience.
  • the area corresponding to the first through hole 124 of the liquid crystal display module 100 is used as the center, and the brightness of the liquid crystal display module 100 changes from the center to the surrounding display, thereby reducing the liquid crystal. Display differences of the display module 100.
  • the first light-through hole 124 is filled with a light-transmitting material 1242, and the light-transmittance of the light-transmitting material 1242 is greater than 90%.
  • the light transmittance of the first light-passing hole 124 is greater than the light transmittance of the light-increasing region 122, so that the functional device 300 can better emit light to or receive the backlight module 10 through the first light-passing hole 124. 10 external light, thereby ensuring the normal operation of the functional device 300.
  • the light-transmitting material 1242 can be selected according to different functional devices 300.
  • the material of the light-enhancing region 122 is polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • the light-transmitting material 1242 may be a plexiglass (Polymethyl methacrylate) (PMMA);
  • PMMA Polymethyl methacrylate
  • the light-transmitting material 1242 may be IR ink.
  • the reflective sheet 18 is provided with a second light through hole 182, and the second light through hole 182 is aligned with the first light through hole 124.
  • the second light-through hole 182 allows the light emitted by the functional device 300 to pass through the reflective sheet 18 and exit to the backlight module 10, and / or enables the functional device 300 to receive light incident from the outside of the backlight module 10.
  • the second light-passing hole 182 is filled with a light-transmitting material 1822, and the light-transmittance of the light-transmitting material 1822 is greater than 90%.
  • the functional device 300 it is beneficial to increase the light transmittance of the second light through hole 182, so that the functional device 300 can better emit light to or receive light outside the backlight module 10 through the second light through hole 182. Thus, the functional device 300 is guaranteed to work normally.
  • the diffusion film 14 is provided with a third light through hole 144, and the third light through hole 144 is aligned with the first light through hole 124.
  • the third light passing hole 144 can reduce or even eliminate the loss of light passing through the diffusion film 14 in the diffusion film 14, thereby further increasing the transmittance of light passing through the first light passing hole 124.
  • the diffusion film 14 further includes a light diffusion region 142, and the light diffusion region 142 is located on the extension of the third light-passing hole 144.
  • the diffusion film 14 can diffusely reflect the light passing through the light diffusion region 142 through the light diffusion region 142, thereby achieving the effect of uniform light.
  • the third light-passing hole 144 is filled with a light-transmitting material 1442, and the light-transmittance of the light-transmitting material 1442 is greater than 90%.
  • the functional device 300 can better emit light to or receive light from the outside of the backlight module 10 through the third light through hole 144.
  • the functional device 300 is guaranteed to work normally.
  • the light guide plate 16 is formed with light guide points 162 arranged in an array.
  • the light guide plate 16 includes a first light guide portion 164 and a second light guide portion 166.
  • the light guide portion 164 is aligned with the first light through hole 124, and the density of the light guide points 162 located at the first light guide portion 164 is greater than the density of the light guide points 162 located at the second light guide portion 166.
  • the way of setting the light guide points 162 can compensate for the visual difference caused by the high light transmittance of the first light through hole 124.
  • the first light-passing hole 124 is higher than that of the light-increasing area 122, because the first light-passing hole 124 lacks a light-increasing structure, the user can easily feel that the first light-through hole 124 is more effective than the light-increasing area 122 when observing. Dark, making the user experience poor.
  • the density of the light guide points 162 of the first light guide portion 164 is greater than the density of the light guide points 162 located at the second light guide portion 166.
  • the amount of light emitted from the corresponding area of the liquid crystal display module 100 and the first light-through hole 124 can further compensate for the dimming of the first light-through hole 124, which is beneficial to reducing visual discomfort for the user.
  • the light guide point 162 may be a groove, a protrusion, or a through hole.
  • the cross section of the light guide point 162 may be a triangle, an arc, a rectangle, an irregular polygon, or the like.
  • the shape of the light guide spot 162 is not limited herein.
  • the arrangement of the light guide points 162 may be regular or irregular; the light guide plate 16 may include light guide points 162 of one shape, or light guide points 162 of multiple shapes.
  • the arrangement of the light guide points 162 is not limited here either.
  • a plurality of light guide spots 162 are formed on the upper surface of the light guide plate 16.
  • a plurality of light guide spots 162 are formed on the upper and lower surfaces of the light guide plate 16.
  • the density of the light guide points 162 located at the second light guide portion 166 gradually increases.
  • the density of the light guide spots 162 of the first light guide portion 164 gradually decreases.
  • the second light guiding portion 166 gradually becomes brighter, or in a direction in which the first light guiding portion 164 faces the second light guiding portion 166, The first light guide portion 164 gradually becomes darker, which is beneficial to the smooth transition of the density of the light guide points 162 at the position of the boundary between the first light guide portion 164 and the second light guide portion 166, and to avoid the backlight transmitted by the light guide plate 16 There is a sudden change in the position of the boundary between the first light guide section 164 and the second light guide section 166, thereby making the user more visually comfortable, thereby improving the user experience.
  • the liquid crystal display module 100 when the liquid crystal display module 100 is working and displaying, the area corresponding to the first light hole 124 of the liquid crystal display module 100 is used as the center, and the brightness of the liquid crystal display module 100 is smoothly changed from the center to the surrounding display, thereby reducing The display of the liquid crystal display module 100 is different.
  • the backlight module 10 further includes a backlight 19.
  • the backlight 19 is disposed on one side of the light guide plate 16.
  • the backlight 19 is configured to project the light source into the light guide plate 16. In this way, a light source is provided for the backlight module 10 so that the backlight module 10 can work normally.
  • the backlight 19 is, for example, an LED light source, and the backlight 19 may be in a band shape.
  • the number of the backlight sources 19 may be a specific number such as one or two, and the number of the backlight sources 19 is not limited herein.
  • the backlight module 10 further includes a frame body 11.
  • the elastic frame body 11 surrounds the light enhancement layer 12, the diffusion film 14, the light guide plate 16 and the reflection sheet 18, the light enhancement layer 12, The diffusion film 14, the light guide plate 16 and the reflection sheet 18 are all fixedly connected to the elastic frame 11.
  • the backlight module 10 is packaged into a whole, which is advantageous for assembling the backlight module 10 with other accessories, and can prevent the backlight module 10 from leaking light from the side.
  • the elastic frame 11 may be a plastic frame. More specifically, the elastic frame 11 may be a opaque plastic frame.
  • the light-enhancing layer 12, the diffusion film 14, the light guide plate 16, and the reflection sheet 18 can be sequentially stacked in a mold, and then the light-enhancing layer 12, the diffusion film 14, the light guide plate 16, and the reflection can be stacked in order. Dispensing between the sheet 18 and the mold, and finally curing the glue to form a glue frame.
  • the backlight module 10 further includes a supporting frame 13.
  • the supporting frame 13 includes a substrate 132 and a side wall 134 extending from an edge of the substrate 132.
  • the substrate 132 is provided with a fourth light-through hole 1322 aligned with the first light-through hole 124.
  • the supporting frame 13 can increase the strength of the backlight module 10, and thus protect the backlight module 10 when receiving an external impact.
  • the support frame 13 may be made of iron.
  • the light-enhancing layer 12, the diffusion film 14, the light guide plate 16, and the reflection sheet 18 may be fixed in the receiving space 136 by using glue or tape.
  • the fourth light-passing hole 1322 can enable the functional device to emit light to the outside of the liquid crystal display module 100 and receive light incident from the outside of the liquid crystal display module 100.
  • the fourth light-passing hole 1322 is used to at least partially receive the functional device 300.
  • the “fourth through-hole 1322 is used to at least partially contain the functional device 300” includes two cases:
  • the functional devices 300 are all located in the fourth light-passing hole 1322. As shown in FIGS. 21 and 22, in the example of FIG. 27, the size of the functional device 300 is approximately the same as that of the fourth light-passing hole 1322. In the example, the size of the functional device 300 is smaller than the size of the fourth light-passing hole 1322;
  • the functional device 300 is partially located in the fourth light-passing hole 1322, as shown in FIG. 29.
  • a liquid crystal display module 100 includes a backlight module 10 according to any one of the above embodiments and a liquid crystal display screen 20 disposed on a light-increasing layer 12 side facing away from the diffusion film 14.
  • the liquid crystal display module 100 of the embodiment of the present application improves the local light transmittance of the backlight module 10 by opening the first light-through hole 124, which can reduce the influence of the backlight module 10 on the functional device 300, so that the functional device 300 can be compared with It is better to emit light to the outside of the backlight module 10 or receive light outside the backlight module 10 through the first light-through hole 124 to ensure the normal operation of the functional device 300.
  • the liquid crystal display module 100 includes a cover plate 30 covering the liquid crystal display screen 20.
  • the cover plate 30 may be made of a material such as glass, ceramic, or sapphire. Since the cover plate 30 covers the liquid crystal display screen 20, in order to protect the liquid crystal display screen 20, the cover plate 30 may be made of a material having a relatively high hardness, such as the above sapphire material. Alternatively, a hardened layer is formed on the surface of the cover plate 30 to improve the scratch resistance of the cover plate 30.
  • the light transmittance of the portion of the liquid crystal display module 100 corresponding to the first light-through hole 124 is greater than 30%, so that the light emitted by the functional device 300 can be transmitted through the liquid crystal display module 100 to the liquid crystal display module. 100, and / or receive light outside the liquid crystal display module 100.
  • the light transmittance can refer to the transmittance to visible light and the transmittance to infrared light.
  • the liquid crystal display module 100 in the thickness direction of the liquid crystal display module 100, the liquid crystal display module 100 has a transmittance of infrared light having a wavelength of 800-1000 nm is greater than 30%.
  • an electronic device 1000 includes a housing 200 and the liquid crystal display module 100 of any one of the above embodiments.
  • the liquid crystal display module 100 is disposed on the housing 200.
  • the electronic device 1000 of the embodiment of the present application improves the local light transmittance of the backlight module 10 by opening the first light-through hole 124, which can reduce the influence of the backlight module 10 on the functional device 300, so that the functional device 300 can better
  • the first through hole 124 emits light to the outside of the backlight module 10 or receives light outside the backlight module 10, thereby ensuring the normal operation of the functional device 300.
  • the housing 200 is an external component of the electronic device 1000 and plays a role of protecting and accommodating the internal components of the electronic device 1000 such as the liquid crystal display module 100. More specifically, the housing 200 may be a back cover of the electronic device 1000, which houses components such as a battery of the electronic device 1000.
  • the electronic device 1000 includes, but is not limited to, a mobile phone, a tablet computer, or a wearable device.
  • the electronic device 1000 includes a backlight module 10 and a functional device 300.
  • the backlight module 10 includes a light-enhancing layer 12, a diffusion film 14, a light guide plate 16, and a reflective sheet 18 that are stacked in this order.
  • the light-enhancing layer 12 is provided with a first light-through hole 124.
  • the functional device 300 is disposed on the side of the reflective sheet 18 facing away from the light guide plate 16 and is aligned with the first light through hole 124.
  • the functional device 300 is used to emit light to the outside of the backlight module 10 through the first light through hole 124 and / or through the first A light-through hole 124 receives light incident from outside the backlight module 10.
  • the electronic device 1000 of the embodiment of the present application improves the local light transmittance of the backlight module 10 by opening the first light-through hole 124, which can reduce the influence of the backlight module 10 on the functional device 300, so that the functional device 300 can better
  • the first through hole 124 emits light to the outside of the backlight module 10 or receives light outside the backlight module 10, thereby ensuring the normal operation of the functional device 300.
  • the functional device 300 includes at least one of a distance sensor, a camera module, a light sensor, and a fingerprint sensor.
  • the functional device 300 includes a distance sensor; in another example, the functional device 300 includes a distance sensor and a camera module; in yet another example, the functional device 300 includes a distance sensor, a camera module, a light sensor, and Fingerprint sensor.
  • the function device 300 When the function device 300 is a distance sensor, the function device 300 emits light to the outside of the liquid crystal display module 100 through the first light hole 124 and receives light reflected from the object through the first light hole 124, so that the electronic device 1000 and the object can be detected. distance.
  • the functional device 300 When the functional device 300 is a light sensor, the functional device 300 receives light outside the liquid crystal display module 100 through the first light-through hole 124 to detect the ambient brightness.
  • the functional device 300 When the functional device 300 is a camera module, the functional device 300 receives light outside the liquid crystal display module 100 through the first light-through hole 124 to obtain an external image.
  • the functional device 300 When the functional device 300 is a fingerprint sensor, the functional device 300 emits light to the outside of the liquid crystal display module 100 through the first light hole 124 and receives light reflected from the finger through the first light hole 124, so that fingerprint information can be detected.
  • the number of the functional devices 300 is multiple, the number of the corresponding first light-through holes 124 is also multiple, and the multiple first light-through holes 124 correspond to the multiple functional devices 300 one-to-one.

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Abstract

一种背光模组(10)、液晶显示模组(100)和电子装置(1000)。背光模组(10)包括依次层叠设置的增光层(12)、扩散膜(14)、导光板(16)和反射片(18)，增光层(12)开设有第一通光孔(124)，第一通光孔(124)被配置为与设置在反射片(18)背离导光板(16)一侧的功能器件(300)对齐，以使功能器件(300)发出的光线经过第一通光孔(124)射至背光模组(10)外，和/或以使功能器件(300)接收从背光模组(10)外入射且经过第一通光孔(124)的光线。

Description

背光模组、液晶显示模组和电子装置
优先权信息
本申请请求2018年08月10日向中国国家知识产权局提交的、专利申请号为201810929715.3和201821294899.2的专利申请的优先权和权益，并且通过参照将其全文并入此处。
技术领域
本申请涉及显示技术领域，尤其涉及一种背光模组、液晶显示模组和电子装置。
背景技术
大屏占比的手机等电子装置越来越受到用户的青睐。为了提高电子装置的屏占比，可将距离传感器和光线传感器等功能器件安装在显示屏组件的下方。
发明内容
本申请的实施方式提供了一种背光模组、液晶显示模组和电子装置。
本申请实施方式的液晶显示模组的背光模组包括依次层叠设置的增光层、扩散膜、导光板和反射片，所述增光层包括开设有第一通光孔，所述第一通光孔被配置为与设置在所述反射片背离所述导光板一侧的功能器件对齐，以使所述功能器件发出的光线经过所述第一通光孔出射至所述背光模组外，和/或以使所述功能器件接收从所述背光模组外入射且经过所述第一通光孔的光线。
本申请实施方式的液晶显示模组包括背光模组和液晶显示屏，所述背光模组包括依次层叠设置的增光层、扩散膜、导光板和反射片，所述增光层包括开设有第一通光孔，所述第一通光孔被配置为与设置在所述反射片背离所述导光板一侧的功能器件对齐，以使所述功能器件发出的光线经过所述第一通光孔出射至所述背光模组外，和/或以使所述功能器件接收从所述背光模组外入射且经过所述第一通光孔的光线；所述液晶显示屏设置在所述增光层背离所述扩散膜一侧。
本申请实施方式的电子装置包括背光模组和功能器件，所述背光模组包括依次层叠设置的增光层、扩散膜、导光板和反射片，所述增光层开设有第一通光孔，所述功能器件设置在所述反射片背离所述导光板的一侧并与所述第一通光孔对齐，所述功能器件用于通过所述第一通光孔向所述背光模组外发出光线，和/或通过所述第一通光孔接收从所述背光模组外入射的光线。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是本申请实施方式的背光模组的分解示意图；
图2至图6是图1的增光层的不同实施方式的立体示意图；
图7至图10是图1的增光层的不同实施方式的分解示意图；
图11是图7至图10的第一增光膜的剖面示意图；
图12是图1的增光层的另一实施方式的分解示意图；
图13是图12的第一增光膜的剖面示意图；
图14是图1的增光层的立体示意图；
图15是图1的背光模组的另一实施方式的分解示意图；
图16是图15的反射片的立体示意图；
图17是图1的背光模组的另一实施方式的分解示意图；
图18是图17的背光模组的扩散膜的立体示意图；
图19是图1的背光模组的另一实施方式的分解示意图；
图20至图21是图19的背光模组的导光板不同实施方式的剖面示意图；
图22至图23是图1的背光模组的不同实施方式的分解示意图；
图24是图23的背光模组的剖面示意图；
图25是图1的背光模组的另一实施方式的分解示意图；
图26至图29是图25的背光模组不同实施方式的剖面示意图；
图30是本申请实施方式的液晶显示模组的分解示意图；
图31是图30的液晶显示模组的另一实施方式的分解示意图；
图32是本申请实施方式的电子装置的平面示意图；和
图33是图32的电子装置的剖面示意图。
主要元件符号说明：
背光模组10、弹性框体11、增光层12、第一增光区121、第二增光区122、第一通光孔124、透光材料1242、第一增光膜126、第二增光膜128、凸起129、凸起129’、支撑架13、基板132、第四通光孔1322、侧壁134、收容空间136、扩散膜14、光扩散区142、第三通光孔144、透光材料1442、导光板16、导光点162、第一导光部164、第二导光部166、反射片18、第二通光孔182、透光材料1822、背光源19、液晶显示模组100、液晶显示屏20、盖板30、电子装置1000、壳体200、功能器件300。
具体实施方式
下面详细描述本申请的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要理解的是，术语“中心”、“厚度”、“上”、“下”、“左”、“右”、“内”、“外”、等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，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所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参阅图1，本申请实施方式的液晶显示模组的背光模组10包括依次层叠设置的增光层12、扩散膜14、导光板16和反射片18，增光层12开设有第一通光孔124，第一通光孔124被配置为与设置在反射片18背离导光板16一侧的功能器件300对齐，以使功能器件300发出的光线经过第一通光孔124射至背光模组10外，和/或以使功能器件300接收从背光模组10外入射且经过第一通光孔124的光线。
可以理解，第一通光孔124与功能器件300对齐，可以是第一通光孔124在导光板16上的正投影覆盖功能器件300在导光板16上的正投影。
本申请实施方式的背光模组10通过开设第一通光孔124来提高背光模组10的局部透光率，能够减小背光模组10对功能器件300的影响，使得功能器件300可以较好地通过第一通光孔124向背光模组10外部发出光线或接收背光模组10外部的光线，从而保证功能器件300正常工作。
请参阅图2至图4，第一通光孔124可以位于增光层12的任意位置，在此不对第一通光孔124的位置进行限定。
在一个例子中，第一通光孔124在增光层12的右上角，如图2所示；在另一个例子中，第一通光孔124在增光层12的左下角，如图3所示；在又一个例子中，第一通光孔124的中心与增光层12的中心重合，如图4所示。
另外，第一通光孔124的形状可以是圆形、椭圆形、正方形、矩形、梯形、不规则多边形等任意形 状，在此不对第一通光孔124的形状进行限定。
此外，请参阅图5和图6，增光层12可以包括一个第一通光孔124，也可以包括多个第一通光孔124，在此不对第一通光孔124的数量进行限定。
在图4的例子中，增光层12包括1个第一通光孔124；在图5的例子中，增光层12包括3个第一通光孔124；在图6的例子中，增光层12包括5个第一通光孔124。
请参阅图7至图9，在某些实施方式中，增光层12包括第一增光膜126和层叠设置在第一增光膜126朝向扩散膜14一侧的第二增光膜128，第一增光膜126和第二增光膜128中的至少一个包括第一通光孔124。
如此，可根据实际需求可选择地在第一增光膜126和第二增光膜128中开设第一通光孔124。
请注意，此处“第一增光膜126和第二增光膜128中的至少一个包括第一通光孔124”包括三种情况：
仅有第一增光膜126包括第一通光孔124，如图7所示；
仅有第二增光膜128包括第一通光孔124，如图8所示；
第一增光膜126和第二增光膜128均包括有第一通光孔124，并且第一增光膜126上的第一通光孔124与第二增光膜128上的第一通光孔124对齐，如图9所示。
请参阅图10至图11，进一步地，在第二增光膜128开设有第一通光孔124的情况下，第一增光膜126与第一通光孔124相对应的表面形成有多个凸起129，多个凸起129呈阵列排布。
可以理解，在第二增光膜128开设第一通过孔124后，导致第一增光膜126对应第一通光孔124区域的出光亮度较低，容易造成用户视觉上的突兀感。
通过在第一增光膜126形成有多个凸起129，使得出射方向与第一增光膜126的厚度方向偏离较大的那部分光线，在从第一增光膜126出射后，可以重新进入其他的凸起129，并在经过凸起129的折射和反射后，调整从第一增光膜126出射的方向，使得光线尽可能地沿第一增光膜126的厚度方向出射，以进入观察者的视角之内。如此可以提高第一增光膜126对应第一通光孔124区域的出光亮度，减少用户视觉上的突兀感。
请参阅图12至图13，进一步地，在第二增光膜128开设有第一通光孔124，第一增光膜126的表面形成有多个凸起129，增光层12包括第一增光区121和第二增光区122，第一增光区121与第一通光孔124对齐，位于第一增光区121的凸起129’的密度大于位于第二增光区122的凸起129’的密度。
如此，凸起129’的设置方式可以补偿由于开设第一通光孔124而产生的视觉差异。
可以理解，即使第一通光孔124位置区域的透光率比第二增光区122更高，但是由于第一通光孔124缺少增光结构，用户在观察时容易觉得第一通光孔124比第二增光区122更暗，使得用户体验较差。而第一增光区121的凸起129’的密度大于位于第二增光区122的凸起129’的密度，可以增加第一增光区121在增光层12的厚度方向的导光量，从而增加液晶显示模组100与第一通光孔124对应区域的出光量，进而可以补偿第一通光孔124的变暗，有利于降低用户在视觉上的不适。
在某些实施方式中，在第二增光区122朝向第一增光区121的方向上，位于第二增光区122的凸起129’的密度逐渐增大。
如此，在朝向第一增光区121的方向上，第二增光区122逐渐变亮，从而使得用户在视觉上更加舒适，进而提高用户体验。例如，液晶显示模组100工作显示时，以液晶显示模组100与第一通光孔124对应的区域为中心，液晶显示模组100向从中心处向周围显示的亮度过渡变化，从而降低液晶显示模组100的显示差异。
请参阅图14，在某些实施方式中，在第一通光孔124中填充有透光材料1242，透光材料1242的透光率大于90％。
如此，使得第一通光孔124的透光率大于增光区122的透光率，使得功能器件300可以较好地通过第一通光孔124向背光模组10外部发出光线或接收背光模组10外部的光线，从而保证功能器件300正常工作。
需要指出的是，透光材料1242可根据不同的功能器件300进行选择。例如增光区122的材料为聚对苯二甲酸乙二酯(Polyethylene Terephthalate，PET)，当第一通光孔124下的功能器件300为光线传感器时，透光材料1242可以是有机玻璃(Polymethyl methacrylate，PMMA)；当第一通光孔124下的 功能器件300为红外传感器时，透光材料1242可以是IR油墨。
请参阅图15，在某些实施方式中，反射片18开设有第二通光孔182，第二通光孔182与第一通光孔124对齐。
如此，第二通光孔182使得功能器件300发出的光线可以穿过反射片18后出射至背光模组10外，和/或使得功能器件300可以接收从背光模组10外入射的光线。
请参阅图10，在某些实施方式中，在第二通光孔182中填充有透光材料1822，透光材料1822的透光率大于90％。
如此，有利于增大第二通光孔182的透光率，使得功能器件300可以较好地通过第二通光孔182向背光模组10外部发出光线或接收背光模组10外部的光线，从而保证功能器件300正常工作。
请参阅图16，在某些实施方式中，扩散膜14开设有第三通光孔144，第三通光孔144与第一通光孔124对齐。如此，第三通光孔144可以减少甚至消除经过扩散膜14的光线在扩散膜14的损失，从而进一步增大经过第一通光孔124的光线的透过率。
扩散膜14还包括光扩散区142，光扩散区142位于第三通光孔144的外延。
如此，扩散膜14通过光扩散区142能够使通过光扩散区142的光线形成漫反射，从而达到均光的效果。
请参阅图17，在某些实施方式中，在第三通光孔144中填充有透光材料1442，透光材料1442的透光率大于90％。
如此，有利于增大第三通光孔144的透光率，使得功能器件300可以较好地通过第三通光孔144向背光模组10外部发出光线或接收背光模组10外部的光线，从而保证功能器件300正常工作。
请参阅图19和图20，在某些实施方式中，导光板16形成有呈阵列排布的导光点162，导光板16包括第一导光部164和第二导光部166，第一导光部164与第一通光孔124对齐，位于第一导光部164的导光点162的密度大于位于第二导光部166的导光点162的密度。
如此，导光点162的设置方式可以补偿由于第一通光孔124的透光率较高而产生的视觉差异。
可以理解，即使第一通光孔124的透光率比增光区122更高，但是由于第一通光孔124缺少增光结构，用户在观察时容易觉得第一通光孔124比增光区122更暗，使得用户体验较差。而第一导光部164的导光点162的密度大于位于第二导光部166的导光点162的密度，这样可以增加第一导光部164在导光板16厚度方向的导光量从而增加液晶显示模组100与第一通光孔124对应区域的出光量，进而可以补偿第一通光孔124的变暗，有利于降低用户在视觉上的不适。
具体地，导光点162可以为凹槽、凸起或通孔。导光点162的截面可以是三角形、弧形、矩形、不规则多边形等。在此不对导光点162的形状进行限定。
另外，导光点162的排布可以是规律的，也可以是不规律的；导光板16可以包括一种形状的导光点162，也可以包括多种形状的导光点162。在此也不对导光点162的排布方式进行限定。
在图20的示例中，导光板16的上表面形成有多个导光点162。在图21的示例中，导光板16的上表面和下表面均形成有多个导光点162。
请参阅图20，在某些实施方式中，在第二导光部166朝向第一导光部164的方向A上，位于第二导光部166的导光点162的密度逐渐增大。或者，在第一导光部164朝向第二导光部166的方向上，第一导光部164的导光点162的密度逐渐减小。
如此，在第二导光部166朝向第一导光部164的方向A上，第二导光部166逐渐变亮，或者在第一导光部164朝向第二导光部166的方向上，第一导光部164逐渐变暗，有利于使第一导光部164与第二导光部166的分界线位置处的导光点162密度的平滑过渡，避免导光板16传导出来的背光在第一导光部164与第二导光部166的分界线位置处出现突变，从而使得用户在视觉上更加舒适，进而提高用户体验。例如，液晶显示模组100工作显示时，以液晶显示模组100与第一通光孔124对应的区域为中心，液晶显示模组100向从中心处向周围显示的亮度平滑过渡变化，从而降低液晶显示模组100的显示差异。
请参阅图22，在某些实施方式中，背光模组10还包括背光源19，背光源19设置在导光板16的一侧，背光源19用于将光源射入导光板16中。如此，为背光模组10提供光源，使得背光模组10可以正常工作。
背光源19例如为LED光源，背光源19可以呈带状。背光源19的数量可以为1个或者2个等具体数量，在此不对背光源19的数量作限制。
请参阅图23和图24，在某些实施方式中，背光模组10还包括框体11，弹性框体11围绕增光层12、扩散膜14、导光板16和反射片18，增光层12、扩散膜14、导光板16和反射片18均与弹性框体11固定连接。
如此，将背光模组10封装成一体，在有利于将背光模组10与其他配件组装的同时，可以避免背光模组10从侧面漏光。
具体地，弹性框体11可以是胶框。更具体地，弹性框体11可以是不透光的胶框。在实际的生产过程中，可以先将增光层12、扩散膜14、导光板16和反射片18在模具中依序堆叠，然后在堆叠好的增光层12、扩散膜14、导光板16和反射片18与模具之间点胶，最后将胶固化以形成胶框。
请参阅图25和图26，在某些实施方式中，背光模组10还包括支撑架13，支撑架13包括基板132和自基板132边缘延伸的侧壁134，侧壁134与基板132围成有收容空间136，增光层12、扩散膜14、导光板16和反射片18均收容于收容空间136，基板132开设有与第一通光孔124对齐的第四通光孔1322。
如此，在保证功能器件300正常工作的同时可以提高背光模组10的可靠性。可以理解，支撑架13可以提高背光模组10的强度，从而在受到外界冲击时保护背光模组10。具体地，支撑架13可以采用铁制成。在实际的生产过程中，可以采用胶水或者胶带将增光层12、扩散膜14、导光板16和反射片18固定在收容空间136内。
第四通光孔1322可以使得功能器件向液晶显示模组100外发出光线，及接收从液晶显示模组100外入射的光线。
请参阅图27至图29，在某些实施方式中，第四通光孔1322用于至少部分收容功能器件300。
请注意，此处“第四通光孔1322用于至少部分收容功能器件300”包括两种情况：
功能器件300全部地位于第四通光孔1322内，如图21、22所示，在图27的示例中，功能器件300的尺寸与第四通光孔1322的尺寸大致相同，在图28的示例中，功能器件300的尺寸小于第四通光孔1322的尺寸；
功能器件300部分地位于第四通光孔1322内，如图29所示。
请参阅图1和图30，本申请实施方式的液晶显示模组100包括以上任一实施方式的背光模组10和设置在增光层12背离扩散膜14一侧的液晶显示屏20。
本申请实施方式的液晶显示模组100通过开设第一通光孔124来提高背光模组10的局部透光率，能够减小背光模组10对功能器件300的影响，使得功能器件300可以较好地通过第一通光孔124向背光模组10外部发出光线或接收背光模组10外部的光线，从而保证功能器件300正常工作。
请参阅图31，在某些实施方式中，液晶显示模组100包括覆盖液晶显示屏20的盖板30。
具体地，盖板30可以由玻璃、陶瓷或蓝宝石等材料制成。由于盖板30覆盖液晶显示屏20，为了保护液晶显示屏20，盖板30可以采用硬度较大的材料制成，例如以上的蓝宝石材料。或者在盖板30的表面形成硬化层以提高盖板30的抗刮能力。
在一个例子中，液晶显示模组100与第一通光孔124对应的部位的透光率大于30％，以使功能器件300发出的光线可以透过液晶显示模组100出射至液晶显示模组100外，和/或接收液晶显示模组100外的光线。
需要指出的是，透光率可以指对可见光的透过率，也可以指对红外光的透过率。在一个例子中，在液晶显示模组100的厚度方向上，液晶显示模组100对波长为800-1000nm的红外光的透过率大于30％。
请参阅图1和图32和图33，本申请实施方式的电子装置1000包括壳体200和以上任一实施方式的液晶显示模组100，液晶显示模组100设置在壳体200上。
本申请实施方式的电子装置1000通过开设第一通光孔124来提高背光模组10的局部透光率，能够减小背光模组10对功能器件300的影响，使得功能器件300可以较好地通过第一通光孔124向背光模组10外部发出光线或接收背光模组10外部的光线，从而保证功能器件300正常工作。
具体地，壳体200为电子装置1000的外部零部件，其起到了保护和收容液晶显示模组100等电子 装置1000的内部零件的作用。更具体地，壳体200可以为电子装置1000的后盖，其收容电子装置1000的电池等零部件。
请注意，电子装置1000包括但不限于手机、平板电脑或可穿戴设备。
本申请实施方式的电子装置1000包括背光模组10和功能器件300。背光模组10包括依次层叠设置的增光层12、扩散膜14、导光板16和反射片18，增光层12开设有第一通光孔124。功能器件300设置在反射片18背离导光板16一侧并与第一通光孔124对齐，功能器件300用于通过第一通光孔124向背光模组10外发出光线，和/或通过第一通光孔124接收从背光模组10外入射的光线。
本申请实施方式的电子装置1000通过开设第一通光孔124来提高背光模组10的局部透光率，能够减小背光模组10对功能器件300的影响，使得功能器件300可以较好地通过第一通光孔124向背光模组10外部发出光线或接收背光模组10外部的光线，从而保证功能器件300正常工作。
在某些实施方式中，功能器件300包括距离传感器、摄像模组、光线感应器和指纹传感器中的至少一种。
在一个例子中，功能器件300包括距离传感器；在另一个例子中，功能器件300包括距离传感器和摄像模组；在又一个例子中，功能器件300包括距离传感器、摄像模组、光线感应器和指纹传感器。
功能器件300为距离传感器时，功能器件300通过第一通光孔124向液晶显示模组100外发出光线并通过第一通光孔124接收物体反射回来的光线，从而可以检测电子装置1000与物体的距离。
功能器件300为光线感应器时，功能器件300通过第一通光孔124接收液晶显示模组100外的光线，以检测环境亮度。
功能器件300为摄像模组时，功能器件300通过第一通光孔124接收液晶显示模组100外的光线，以获取外界图像。
功能器件300为指纹传感器时，功能器件300通过第一通光孔124向液晶显示模组100外发出光线，并通过第一通光孔124接收手指反射回来的光线，从而可以检测指纹信息。
可以理解，功能器件300的数量为多个时，对应的第一通光孔124的数量也为多个，并且多个第一通光孔124与多个功能器件300一一对应。
在本说明书的描述中，参考术语“一个实施方式”、“某些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合所述实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施方式，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (22)

  1. 一种液晶显示模组的背光模组，其特征在于，所述背光模组包括依次层叠设置的增光层、扩散膜、导光板和反射片，所述增光层开设有第一通光孔，所述第一通光孔被配置为与设置在所述反射片背离所述导光板一侧的功能器件对齐，以使所述功能器件发出的光线经过所述第一通光孔射至所述背光模组外，和/或以使所述功能器件接收从所述背光模组外入射且经过所述第一通光孔的光线。
  2. 如权利要求1所述的背光模组，其特征在于，所述增光层包括第一增光膜和层叠设置在所述第一增光膜朝向所述扩散膜一侧的第二增光膜，所述第一增光膜和所述第二增光膜中的至少一个开设所述第一通光孔。
  3. 如权利要求2所述的背光模组，其特征在于，所述第二增光膜开设有所述第一通光孔，所述第一增光膜与所述第一通光孔相对应的表面形成有多个凸起，所述多个凸起呈阵列排布。
  4. 如权利要求2所述的背光模组，其特征在于，所述第二增光膜开设有所述第一通光孔，所述第一增光膜的表面形成有多个凸起，所述增光层包括第一增光区和第二增光区，所述第一增光区与所述第一通光孔对齐，位于所述第一增光区的所述凸起的密度大于位于所述第二增光区的所述凸起的密度。
  5. 如权利要求4所述的背光模组，其特征在于，在所述第二增光区朝向所述第一增光区的方向上，位于所述第二增光区的所述凸起的密度逐渐增大。
  6. 如权利要求1所述的背光模组，其特征在于，所述第一通光孔中填设有透光材料，所述透光材料的透光率大于90％。
  7. 如权利要求1或2所述的背光模组，其特征在于，所述反射片开设有第二通光孔，所述第二通光孔与所述第一通光孔对齐。
  8. 如权利要求7所述的背光模组，其特征在于，所述第二通光孔中填设有透光材料，所述透光材料的透光率大于90％。
  9. 如权利要求1、2、7任一项所述的背光模组，其特征在于，所述扩散膜开设有第三通光孔，所述第三通光孔与所述第一通光孔对齐。
  10. 如权利要求9所述的背光模组，其特征在于，所述第三通光孔中填设有透光材料，所述透光材料的透光率大于90％。
  11. 如权利要求1所述的背光模组，其特征在于，所述导光板形成有呈阵列排布的导光点，所述导光板包括第一导光部和第二导光部，所述第一导光部与所述第一通光孔对齐，位于所述第一导光部的所述导光点的密度大于所述位于所述第二导光部的所述导光点的密度。
  12. 如权利要求11所述的背光模组，其特征在于，在所述第二导光部朝向所述第一导光部的方向上，位于所述第二导光部的所述导光点的密度逐渐增大。
  13. 如权利要求1所述的背光模组，其特征在于，所述背光模组还包括围绕所述增光层、所述扩散膜、所述导光板和所述反射片的框体，所述增光层、所述扩散膜、所述导光板和所述反射片均与所述框体固定连接。
  14. 如权利要求1、2、7、9任一项所述的背光模组，其特征在于，所述背光模组还包括支撑架，所述支撑架包括基板和自所述基板边缘延伸的侧壁，所述侧壁与所述基板围成有收容空间，所述增光层、所述扩散膜、所述导光板和所述反射片均收容于所述收容空间，所述基板开设有与所述第一通光孔对齐的第四通光孔。
  15. 如权利要求14所述的背光模组，其特征在于，所述第四通光孔用于至少部分收容所述功能器件。
  16. 一种液晶显示模组，其特征在于，包括：背光模组和液晶显示屏；
    所述背光模组包括依次层叠设置的增光层、扩散膜、导光板和反射片，所述增光层开设有第一通光孔，所述第一通光孔被配置为与设置在所述反射片背离所述导光板一侧的功能器件对齐，以使所述功能器件发出的光线经过所述第一通光孔射至所述背光模组外，和/或以使所述功能器件接收从所述背光模组外入射且经过所述第一通光孔的光线；和
    设置在所述增光层背离所述扩散膜一侧的液晶显示屏。
  17. 根据权利要求16所述的液晶显示模组，其特征在于，所述增光层包括第一增光膜和层叠设置在所述第一增光膜朝向所述扩散膜一侧的第二增光膜，所述第一增光膜和所述第二增光膜中的至少一个开设所述第一通光孔。
  18. 根据权利要求16或17所述的液晶显示模组，其特征在于，所述反射片开设有第二通光孔，所述第二通光孔与所述第一通光孔对齐。
  19. 根据要求16-18任一项所述的液晶显示模组，其特征在于，所述扩散膜开设有第三通光孔，所述第三通光孔与所述第一通光孔对齐。
  20. 根据权利要求16-19任一项所述的液晶显示模组，其特征在于，所述背光模组还包括支撑架，所述支撑架包括基板和自所述基板边缘延伸的侧壁，所述侧壁与所述基板围成有收容空间，所述增光层、所述扩散膜、所述导光板和所述反射片均收容于所述收容空间，所述基板开设有与所述第一通光孔对齐的第四通光孔。
  21. 一种电子装置，其特征在于，包括：
    背光模组，所述背光模组包括依次层叠设置的增光层、扩散膜、导光板和反射片，所述增光层开设有第一通光孔；和
    功能器件，所述功能器件设置在所述反射片背离所述导光板的一侧并与所述第一通光孔对齐，所述功能器件用于通过所述第一通光孔向所述背光模组外发出光线，和/或通过所述第一通光孔接收从所述背光模组外入射的光线。
  22. 如权利要求21所述的电子装置，其特征在于，所述功能器件包括距离传感器、摄像模组、光线感应器和指纹传感器中的至少一种。
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