WO2021104351A1 - 背光模组及电子设备 - Google Patents

背光模组及电子设备 Download PDF

Info

Publication number
WO2021104351A1
WO2021104351A1 PCT/CN2020/131680 CN2020131680W WO2021104351A1 WO 2021104351 A1 WO2021104351 A1 WO 2021104351A1 CN 2020131680 W CN2020131680 W CN 2020131680W WO 2021104351 A1 WO2021104351 A1 WO 2021104351A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
backlight
backlight module
backlight source
circuit board
Prior art date
Application number
PCT/CN2020/131680
Other languages
English (en)
French (fr)
Inventor
李文军
Original Assignee
维沃移动通信有限公司
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
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2021104351A1 publication Critical patent/WO2021104351A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED

Definitions

  • the present invention relates to the technical field of light sources, in particular to a backlight module and electronic equipment.
  • a light-transmitting area can be provided on the display module of the electronic device, and optical devices such as a camera are set toward the light-transmitting area to realize the functions of the optical device.
  • the optical device For electronic equipment equipped with a backlight module, the optical device is usually arranged below the backlight module. Therefore, in order to realize the light transmission between the external environment and the optical device, the backlight module needs to be provided with light transmission corresponding to the above-mentioned light-transmitting area.
  • the optical device is arranged opposite to the light-passing hole.
  • the above-mentioned backlight module usually includes a light bar and an optical component, and the light emitted by the light bar can be exported through the optical component, so as to realize the display function of the display module.
  • the light bar here is usually arranged on one side of the electronic device, and the light bar is a point light source.
  • the optical assembly usually includes a light guide plate, which can use the principle of total reflection of light to guide light.
  • the display module has a flexible structure, then if the light guide plate is configured as a curved structure, the reflection effect of the light guide plate will be deteriorated, and finally the display effect of the electronic device will be deteriorated.
  • the invention discloses a backlight module and electronic equipment to solve the problem of poor display effect of the electronic equipment.
  • the present invention adopts the following technical solutions:
  • a backlight module includes a frame body, a backlight source and an optical assembly, the backlight source and the optical assembly are both arranged in the frame body, and the backlight source and the optical assembly are arranged in a layered manner,
  • Both sides of the frame body are respectively provided with a first bending part
  • the backlight source is provided with a second bending part corresponding to the first bending part
  • the backlight source includes a packaging part, a circuit board and a plurality of light emitting parts.
  • a component, a plurality of the light-emitting components are arranged on the circuit board at intervals
  • the packaging portion is connected to the circuit board
  • the packaging portion wraps a plurality of the light-emitting components.
  • An electronic device includes the above-mentioned backlight module, and further includes a display module, the backlight module is connected to the display module, and the backlight module is located below the display module.
  • both sides of the frame body are respectively provided with first bending parts, so the entire backlight module can be matched with a flexible display module, and the backlight source is provided with a second bending part corresponding to the first bending part.
  • the backlight source can emit light that covers a wider area and is more uniform, thereby improving the display effect of the electronic device.
  • FIG. 1 is a top view of a backlight module disclosed in an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the backlight module according to the embodiment of the present invention along the A-A direction;
  • FIG. 3 is a cross-sectional view of the backlight module according to the embodiment of the present invention along the B-B direction;
  • FIG. 4 is a cross-sectional view of a backlight source disclosed in an embodiment of the present invention.
  • FIG. 5 is a top view of a partial structure of a backlight source disclosed in an embodiment of the present invention.
  • FIG. 6 is a cross-sectional view of a backlight source disclosed in another embodiment of the present invention.
  • the embodiment of the present invention discloses a backlight module, which can be applied to an electronic device, the electronic device includes a display module, and the display module can be connected to the backlight module, The light emitted by the backlight module can pass through the display module, so as to cooperate with the display module to realize the display function of the electronic device.
  • the above-mentioned backlight module specifically includes a frame body 100, a backlight source 200, and an optical assembly 300.
  • the backlight source 200 and the optical assembly 300 are both arranged in the frame body 100, and the backlight source 200 and the optical assembly 300 are stacked so that the light emitted by the backlight source 200 It can be emitted through the optical assembly 300.
  • the frame body 100 may be an iron part, and its thickness may be set to 0.1mm or 0.15mm, optionally 0.15mm, to improve the structural strength of the frame body 100 and the luminous effect of the backlight module.
  • the iron part The processing technology is simpler.
  • a first bending portion 110 is provided on both sides of the frame body 100 respectively.
  • the part of the frame 100 excluding the first bending portion 110 may be a flat plate structure, and the two sides of the flat plate structure are respectively provided with the first bending portion 110, so that the entire frame 100 may be bent on both sides Plate parts.
  • the width (which may be the dimension in the width direction of the backlight module) of the first bending portion 110 may be greater than or equal to 0.3 mm
  • the height (which may be the dimension in the thickness direction of the backlight module) may be greater than or equal to 0.3 mm and less than or equal to 0.3 mm. It is equal to 0.8 mm, so as to better control the space occupied by the entire first bending portion 110.
  • the backlight source 200 is provided with a second bending portion corresponding to the above-mentioned first bending portion 110, and at the same time, the optical assembly 300 may be provided with a corresponding bending structure corresponding to the second bending portion.
  • the backlight source 200 includes an encapsulation part 210, a circuit board 220, and a plurality of light-emitting components 230.
  • the plurality of light-emitting components 230 are arranged on the circuit board 220 at intervals, the encapsulation part 210 is connected to the circuit board 220, and the encapsulation part 210 wraps the plurality of light-emitting components 230. .
  • the thickness of the entire backlight source 200 may be less than or equal to 0.5 mm, and the thickness of the circuit board 220 may be less than or equal to 0.12 mm, so that the thickness of the backlight source 200 is smaller.
  • the thickness of the backlight source 200 and the thickness of the circuit board 220 may also adopt other values, which are not limited in the embodiment of the present invention.
  • the packaging part 210 may be a fluorescent film with a certain ratio, or may be other packaging materials.
  • the light-emitting component 230 may be arranged on the circuit board 220 in a flip-chip or front-mount manner, which is not limited in the embodiment of the present invention.
  • the light emitting component 230 may specifically include a light emitting chip.
  • the circuit board 220 can drive the light-emitting component 230 so that the light-emitting component 230 can emit light, and the light emitted by the light-emitting component 230 can be emitted through the encapsulation part 210.
  • the circuit board 220 may be a flexible circuit board.
  • the backlight source 200 may be formed in a chip-on-board (COB) packaging method, so as to obtain a COB light source.
  • COB chip-on-board
  • the number of the light-emitting components 230 is not limited. Generally speaking, the more the number of the light-emitting components 230 and the denser the arrangement, the better the uniformity of the backlight 200 when emitting light.
  • a plurality of light-emitting components 230 may be arranged on the circuit board 220 in an array arrangement. This arrangement is more regular, so as to achieve the aforementioned purpose.
  • the first bending part 110 is respectively provided on both sides of the frame body 100, so the entire backlight module can match the flexible display module, and the backlight source 200 corresponds to the first bending part 110 is provided with a second bending part, and the backlight source 200 is a surface light source, which can emit light that covers a wider area and is relatively uniform, thereby improving the display effect of the electronic device.
  • the backlight source 200 is a surface light source, there is no need to provide a light guide structure, a light reflecting structure, etc. in the backlight module, so that the structure of the backlight module is simpler and the space occupied by the backlight module is also smaller.
  • the first bending portion 110 may be configured as an arc bending portion, and the backlight source 200 has a flexible structure.
  • the overall shape of the flexible backlight source 200 can be changed according to the shape of the frame body 100. Specifically, it can be adapted to the shape of the first bending portion 110. Therefore, when the first bending portion 110 is an arc-shaped bending portion, the backlight source
  • the second bending part of 200 is also an arc bending part, and the arcs of the two can be equal, so as to achieve a better display effect. It should be noted that the embodiment of the present invention does not limit the specific arcs of the first bending portion 110 and the second bending portion.
  • a reflective surface 221 is provided on the side of the circuit board 220 facing the packaging portion 210. The reflective surface 221 can reflect light. After a part of the light emitted by the light-emitting component 230 reaches the reflective surface 221, it can be reflected by the reflective surface.
  • this structure can allow more light to pass through the display module, thereby improving the display effect of the display module, thereby enhancing the user experience.
  • the optical assembly 300 includes a composite prism, and the composite prism is overlapped with the backlight source 200.
  • the composite prism here can change the propagation direction of the light, thereby scattering and atomizing the light, so that the light emitted by the backlight module is more uniform, thereby improving the display effect of the display module.
  • the backlight source 200 is a surface light source, and the size of the backlight source 200 can be flexibly selected according to design requirements.
  • the edge of the backlight source 200 may be extended to the edge of the frame body 100. That is to say, the shape of the backlight source 200 is basically the same as the shape of the frame body 100, and the sizes of the two are basically the same, so that the space of the frame body 100 is fully utilized to make the backlight source 200 as large as possible, and the light emitted by it covers a wider area. Therefore, the entire area of the corresponding display module emits light, and a better display effect is achieved.
  • the side of the packaging portion 210 facing away from the circuit board 220 may be the fogging surface 211.
  • the side of the package portion 210 facing away from the circuit board 220 can be atomized to obtain an atomized surface 211.
  • the atomized surface 211 has a certain degree of roughness, so that the atomized surface 211 can diffuse light. In turn, the effect of diffusing the light is achieved, so that the light emitted by the backlight source 200 is more uniform.
  • the light-emitting surface of the light-emitting assembly 230 is parallel to the plane where the circuit board 220 is located, and the plane where the circuit board 220 is located is substantially parallel to the plane where the display module is located. Therefore, the light-emitting direction of the light-emitting assembly 230 is toward the display module and also In other words, the light-emitting component 230 emits light in a top-emitting manner. Compared with the side emitting method, this top emitting method can make the light emitted by the light emitting component 230 propagate to the display module more efficiently, thereby helping to improve the display effect of the display module.
  • the backlight source 200 can be bonded to the frame body 100 by glue.
  • glue since the position of the backlight source 200 relative to the frame body 100 has a vital influence on the light-emitting effect of the backlight module, once the operation accuracy of applying glue is not high, it is easy to cause the backlight source 200 as a whole to tilt relative to the frame body 100. In this case, the light emitting direction of the backlight source 200 is deviated, and the light emitting effect of the backlight module is deteriorated. Therefore, in an optional solution, the backlight source 200 is bonded to the frame body 100 through a double-sided tape 400. The thickness uniformity of the double-sided tape 400 is better controlled, so that the position accuracy of the backlight source 200 relative to the frame body 100 is higher, thereby ensuring the light-emitting effect of the backlight module.
  • the thickness of the above-mentioned double-sided adhesive 400 may be greater than 0.03 mm and less than 0.08 mm, so as to ensure a better bonding effect without making the thickness of the backlight module excessively large.
  • the backlight module further includes a light-shielding tape 500.
  • the light-shielding tape 500 includes a first light-shielding part 510 and a second light-shielding part 520.
  • the first light-shielding part 510 and the second shading part 520 are connected to form an L-shaped structure, the first shading part 510 is attached to the side of the optical assembly 300 away from the backlight 200, and the second shading part 520 is connected to the outer side of the backlight 200 and the outer side of the frame 100 Face to face.
  • the optical assembly 300 can be first bonded to the first shading part 510 of the shading tape 500, and then the shading tape 500 is folded back, so that the second shading part 520 and the first shading part 510 form an L-shaped structure. Then, the second shading part 520 is glued to the outer side surface of the backlight source 200 and the outer side surface of the frame body 100 to complete the assembly of the backlight module.
  • the light-shielding tape 500 has a light-shielding effect, thereby preventing light leakage from the backlight module;
  • the backlight module can be fixedly connected to the display module through the light-shielding tape 500, thereby realizing the backlight module and the display module Assembling, there is no need to provide an additional connection structure to connect the backlight module and the display module, making the structure of the electronic device simpler;
  • the optical assembly 300 can also be connected to the frame 100 through the light-shielding tape 500, so no additional The connecting structure is provided to connect the optical assembly 300 and the frame body 100, so that the structure of the backlight module is simpler;
  • the light-shielding tape 500 can improve the air tightness of the backlight module, thereby providing a guarantee for the performance test of the backlight module.
  • the width of the first light-shielding portion 510 may be set to 0.15 mm ⁇ 0.45 mm, and the width of the second light-shielding portion may be set to 0.2 mm ⁇ 0.8 mm.
  • the width of the first shading portion 510 and the width of the second shading portion 520 will not be too large or too small, so as to ensure that the first shading portion 510 and the display module, the optical assembly 300, and the second There is a sufficient bonding area between the light-shielding portion 520 and the frame body 100, and at the same time, the bonding area will not be too large to block the light excessively, thereby improving the light-emitting effect of the backlight module.
  • the overall thickness of the light-shielding tape 500 can be set to about 0.08 mm, so as to improve the bonding effect of the light-shielding tape 500 and at the same time facilitate the performance test of the backlight module.
  • an embodiment of the present invention also discloses an electronic device that includes the backlight module described in any of the foregoing embodiments, and further includes a display module, a backlight module, and a display module.
  • the group is connected, and the backlight module is located under the display module.
  • the backlight module of the electronic device can match the flexible display module, and at the same time, the backlight source 200 can emit light that covers a wider area and is relatively uniform, thereby improving the display effect of the electronic device.
  • the electronic equipment also includes optical devices, the backlight module and the optical devices are arranged on the same side of the display module, the display module is provided with a light-transmitting area, the backlight module is provided with a light-passing hole, and the optical device corresponds to the light-transmitting area and
  • the light-passing hole is arranged so that the light in the external environment can enter the optical device through the light-passing hole, or the light emitted by the optical device can propagate to the external environment through the light-passing hole.
  • the optical device does not occupy the display area of the display module, so the screen-to-body ratio of the electronic device is higher.
  • the above-mentioned optical device may specifically include at least one of a fingerprint module, a camera, a sensor, and a supplementary light, so as to realize the corresponding functions of fingerprint recognition, shooting, data detection, supplementary light, etc., these optical devices may not occupy the electronic equipment Display area, so that the screen-to-body ratio of electronic devices is higher.
  • the optical device may also include other devices having a light receiving function or a light emitting function, which is not limited in the embodiment of the present invention.
  • the electronic device disclosed in the embodiment of the present invention may be a smart phone, a tablet computer, an e-book reader, or a wearable device.
  • the electronic device may also be other devices, which is not limited in the embodiment of the present invention.

Landscapes

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

Abstract

一种背光模组及电子设备，背光模组包括框体（100）、背光源（200）和光学组件（300），背光源（200）和光学组件（300）均设置于框体（100），且背光源（200）和光学组件（300）层叠设置，框体（100）的两侧分别设有第一折弯部（110），背光源（200）对应第一折弯部（110）设有第二折弯部，背光源（200）包括封装部（210）、电路板（220）和多个发光组件（230），多个发光组件（230）间隔设置在电路板（220）上，封装部（210）与电路板（220）相连，且封装部（210）包裹多个发光组件（230）。

Description

背光模组及电子设备
相关申请的交叉引用
本申请主张在2019年11月29日在中国提交的中国专利申请号No.201911207533.6的优先权，其全部内容通过引用包含于此。
技术领域
本发明涉及光源技术领域，尤其涉及一种背光模组及电子设备。
背景技术
随着技术的进步及电子设备的发展，用户对于全面屏电子设备的需求逐渐增加，全面屏也逐渐成为一种发展趋势。摄像头、传感器、补光灯等光学器件的安装位置是制约全面屏发展的主要因素。为了提升电子设备的屏占比，可以在电子设备的显示模组上设置透光区域，将摄像头等光学器件朝向透光区域设置，以实现光学器件所具备的功能。
对于设有背光模组的电子设备来说，光学器件通常设置于背光模组的下方，因此为了实现外部环境与光学器件之间的光线传播，背光模组上需要对应上述透光区域开设通光孔，光学器件则与该通光孔相对布置。
上述背光模组通常包括灯条和光学组件，灯条发出的光线可以通过光学组件导出，从而实现显示模组的显示功能。这里的灯条通常设置于电子设备的一侧，且灯条为点光源，光学组件通常包括导光板，该导光板可以利用光线的全反射原理实现光线的导向。然而，如果显示模组为柔性结构，那么如果将导光板设置为曲面结构，就会导致导光板的反射效果变差，最终导致电子设备的显示效果变差。
发明内容
本发明公开一种背光模组及电子设备，以解决电子设备的显示效果较差的问题。
为了解决上述问题，本发明采用下述技术方案：
一种背光模组，包括框体、背光源和光学组件，所述背光源和所述光学组件均设置于所述框体，且所述背光源和所述光学组件层叠设置，
所述框体的两侧分别设有第一折弯部，所述背光源对应所述第一折弯部设有第二折弯部，所述背光源包括封装部、电路板和多个发光组件，多个所述发光组件间隔设置在所述电路板上，所述封装部与所述电路板相连，且所述封装部包裹多个所述发光组件。
一种电子设备，包括上述背光模组，还包括显示模组，所述背光模组与所述显示模组相连，且所述背光模组位于所述显示模组的下方。
本发明采用的技术方案能够达到以下有益效果：
本发明公开的背光模组中，框体的两侧分别设有第一折弯部，因此整个背光模组可以匹配柔性的显示模组，同时背光源对应第一折弯部设有第二折弯部，该背光源可以发出覆盖面积较广，且比较均匀的光线，从而提升电子设备的显示效果。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本发明的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为本发明实施例公开的背光模组的俯视图；
图2为本发明实施例公开的背光模组沿A-A向的剖面图；
图3为本发明实施例公开的背光模组沿B-B向的剖面图；
图4为本发明实施例公开的背光源的剖面图；
图5为本发明实施例公开的背光源的部分结构的俯视图；
图6为本发明另一实施例公开的背光源的剖面图。
附图标记说明：
100-框体、110-第一折弯部、200-背光源、210-封装部、211-雾化面、220-电路板、221-反射面、230-发光组件、300-光学组件、400-双面胶、500-遮光胶带、510-第一遮光部、520-第二遮光部。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明具体实施例及相应的附图对本发明技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
以下结合附图，详细说明本发明各个实施例公开的技术方案。
如图1-图5所示，本发明实施例公开一种背光模组，该背光模组可以应用于电子设备中，该电子设备包括显示模组，该显示模组可与背光模组相连，背光模组发出的光可以穿过显示模组，从而配合显示模组实现电子设备的显示功能。
上述背光模组具体包括框体100、背光源200和光学组件300，背光源200和光学组件300均设置于框体100，且背光源200和光学组件300层叠设置，使得背光源200发出的光可以通过光学组件300射出。可选地，框体100可以是铁制件，其厚度可以设置为0.1mm或者0.15mm，可选为0.15mm，以提升框体100的结构强度以及背光模组的发光效果，该铁制件的加工工艺更加简单。
框体100的两侧分别设有第一折弯部110。可选地，框体100中除去第一折弯部110的部分可以为平板结构，该平板结构的两侧分别设有第一折弯部110，使得整个框体100可以为两侧折弯的板状部件。第一折弯部110的宽度(可以是背光模组的宽度方向的尺寸)可以大于或等于0.3mm，其高度(可以是背光模组的厚度方向的尺寸)可以大于或等于0.3mm且小于或等于0.8mm，从而更好地控制整个第一折弯部110所占用的空间。
背光源200对应上述第一折弯部110设有第二折弯部，同时，光学组件300可以对应该第二折弯部设置对应的折弯结构。背光源200包括封装部210、电路板220和多个发光组件230，多个发光组件230间隔设置在电路板220上，封装部210与电路板220相连，且封装部210包裹多个发光组件230。可选地，整个背光源200的厚度可以小于或等于0.5mm，电路板220的厚度可以小于或者等于0.12mm，从而使得背光源200的厚度较小。当然，背光源 200的厚度、电路板220的厚度也可以采用其他数值，本发明实施例对此不做限制。封装部210可以是具有一定配比的荧光膜，也可以是其他封装材料。发光组件230可以通过倒装或者正装的方式设置在电路板220上，本发明实施例对此不做限制。
发光组件230具体可以包括发光芯片。电路板220可以实现发光组件230的驱动，使得发光组件230可以发光，发光组件230发出的光可以通过封装部210射出。可选地，电路板220可以是柔性电路板。可选地，背光源200可以采用板上芯片(Chip On Board，COB)封装的方式成型，从而得到COB光源。发光组件230的数量不做限制，通常来讲，该发光组件230的数量越多，排布越密集，则背光源200发光时的均匀性越好。
可选地，为了使得背光源200发出的光线更加均匀，可以使多个发光组件230以阵列排布的方式设置在电路板220上，此种排布方式更具规律性，从而达到前述目的。
本发明实施例公开的背光模组中，框体100的两侧分别设有第一折弯部110，因此整个背光模组可以匹配柔性的显示模组，同时背光源200对应第一折弯部110设有第二折弯部，该背光源200为面光源，其可以发出覆盖面积较广，且比较均匀的光线，从而提升电子设备的显示效果。与此同时，由于背光源200为面光源，因此背光模组中不需要设置导光结构、反光结构等，使得背光模组的结构更加简单，背光模组占用的空间也更小。
为了更好地适应柔性的显示模组，可以将第一折弯部110设置为弧形折弯部，背光源200为柔性结构。柔性的背光源200的整体形状可以根据框体100的形状变化，具体地，可以适配第一折弯部110的形状，因此当第一折弯部110为弧形折弯部时，背光源200的第二折弯部也为弧形折弯部，两者的弧度可以相等，从而实现更好的显示效果。需要说明的是，本发明实施例不限制第一折弯部110和第二折弯部的具体弧度。
发光组件230发出的一部分光可以直接向显示模组所在一侧射出，还有一部分光线会向背离显示模组的一侧射出，这部分光线如果没有被有效利用，就会导致背光模组的发光效率偏低，不利于改善显示模组的显示效果。基于此，进一步的实施例中，电路板220朝向封装部210的一面设有反射面221， 该反射面221可以反射光线，发光组件230发出的一部分光线到达反射面221后，即可被反射面221反射，从而向显示模组所在的一侧传播，最终穿过显示模组。可见，该结构可以使得更多的光线穿过显示模组，从而改善显示模组的显示效果，以此提升用户体验。
一种可选的实施例中，光学组件300包括复合棱镜，该复合棱镜与背光源200叠置。这里的复合棱镜可以改变光线的传播方向，从而对光线进行散射和雾化，使得背光模组发出的光更均匀，进而改善显示模组的显示效果。
如前所述，背光源200为面光源，该背光源200的大小可以根据设计需求灵活选择。为了进一步提升背光源200的发光效果，可以使背光源200的边缘延伸至框体100的边缘。也就是说，背光源200的形状与框体100的形状基本相同，且两者的大小基本相等，从而充分利用框体100的空间使得背光源200尽量大，其发出的光的覆盖面积更广，从而对应显示模组的整个区域发光，达到更优的显示效果。
为了进一步提升背光源200的发光效果，封装部210背离电路板220的一面可以为雾化面211。也就是说，可以对封装部210背离电路板220的一面实施雾化处理，进而得到雾化面211，该雾化面211具有一定的粗糙度，使得该雾化面211可以实现光的散射，进而达到对光线进行扩散的效果，以使背光源200发出的光更均匀。
可选地，发光组件230的发光面平行于电路板220所在的平面，而电路板220所在的平面基本平行于显示模组所在的平面，因此发光组件230的发光方向即朝向显示模组，也就是说，该发光组件230采用顶发光的方式发光。相比于侧发光的方式，此种顶发光方式可以使发光组件230发出的光更高效地传播至显示模组，从而有利于改善显示模组的显示效果。
背光源200与框体100的连接方式有很多种选择，例如背光源200可以通过胶水粘接在框体100上。但是，由于背光源200相对于框体100的位置对于背光模组的发光效果会产生至关重要的影响，一旦涂抹胶水的操作精度不高，就容易出现背光源200整体相对于框体100倾斜的情况，进而导致背光源200的发光方向发生偏斜，致使背光模组的发光效果变差。因此，一种可选的方案中，背光源200通过双面胶400与框体100粘接。该双面胶400 的厚度均匀性更好控制，使得背光源200相对于框体100的位置精度更高，从而保证背光模组的发光效果。
可选地，上述双面胶400的厚度可以大于0.03mm，且小于0.08mm，从而既保证较好的粘接效果，又不至于使背光模组的厚度过大。
为了防止背光模组发光时出现漏光等问题而影响显示模组的高质量显示，背光模组还包括遮光胶带500，遮光胶带500包括第一遮光部510和第二遮光部520，第一遮光部510和第二遮光部520相连形成L形结构，第一遮光部510与光学组件300背离背光源200的一面相贴合，第二遮光部520与背光源200的外侧面、框体100的外侧面相贴合。具体组装背光模组时，可以先将光学组件300与遮光胶带500的第一遮光部510粘接，然后反折遮光胶带500，使得第二遮光部520与第一遮光部510形成L形结构，接着将第二遮光部520粘在背光源200的外侧面以及框体100的外侧面，从而完成背光模组的组装。
采用上述结构后，首先，遮光胶带500具有遮光作用，从而防止背光模组出现漏光问题；其次，背光模组可以通过该遮光胶带500与显示模组固定连接，从而实现背光模组和显示模组的装配，也就不需要额外设置连接结构以连接背光模组和显示模组，使得电子设备的结构更加简单；再次，光学组件300也可以通过遮光胶带500与框体100连接，因此不需要额外设置连接结构以连接光学组件300和框体100，使得背光模组的结构更加简单；最后，遮光胶带500可以提升背光模组的气密性，从而为背光模组的性能测试提供保障。
为了进一步优化遮光胶带500的效果，可以将第一遮光部510的宽度设置为0.15mm～0.45mm，将第二遮光部的宽度设置为0.2mm～0.8mm。此时，第一遮光部510的宽度以及第二遮光部520的宽度不会过大也不会过小，从而既保证第一遮光部510与显示模组、光学组件300之间，以及第二遮光部520与框体100之间具有足够的粘接面积，同时不会使该粘接面积过大而过分遮挡光线，从而改善背光模组的发光效果。此外，遮光胶带500的整体厚度可以设置为0.08mm左右，以此改善遮光胶带500的粘接效果，同时有利于背光模组的性能测试。
基于上述任意实施例所述的背光模组，本发明实施例还公开一种电子设备，该电子设备包括上述任意实施例所述的背光模组，还包括显示模组，背光模组与显示模组相连，且背光模组位于显示模组的下方。该电子设备的背光模组可以匹配柔性的显示模组，同时背光源200可以发出覆盖面积较广，且比较均匀的光线，从而提升电子设备的显示效果。
进一步地，电子设备还包括光学器件，背光模组和光学器件设置于显示模组的同一侧，显示模组设有透光区域，背光模组设有通光孔，光学器件对应透光区域和通光孔设置，从而使得外部环境中的光线可以通过通光孔进入光学器件，或者光学器件发出的光线可以通过该通光孔传播至外部环境中。此时，光学器件不会占用显示模组的显示区域，因此电子设备的屏占比更高。
上述光学器件具体可以包括指纹模组、摄像头、传感器和补光灯中的至少一者，从而可实现对应的指纹识别、拍摄、数据检测、补光等功能，这些光学器件可以不占用电子设备的显示区域，从而使得电子设备的屏占比更高。当然，光学器件还可以包括其他具有接收光线功能或者发光功能的器件，本发明实施例对此不做限制。
本发明实施例所公开的电子设备可以为智能手机、平板电脑、电子书阅读器或可穿戴设备。当然，该电子设备也可以是其他设备，本发明实施例对此不做限制。
本发明上文实施例中重点描述的是各个实施例之间的不同，各个实施例之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行文简洁，在此则不再赘述。
以上所述仅为本发明的实施例而已，并不用于限制本发明。对于本领域技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本发明的权利要求范围之内。

Claims (13)

  1. 一种背光模组，包括框体(100)、背光源(200)和光学组件(300)，所述背光源(200)和所述光学组件(300)均设置于所述框体(100)，且所述背光源(200)和所述光学组件(300)层叠设置，
    所述框体(100)的两侧分别设有第一折弯部(110)，所述背光源(200)对应所述第一折弯部(110)设有第二折弯部，所述背光源(200)包括封装部(210)、电路板(220)和多个发光组件(230)，多个所述发光组件(230)间隔设置在所述电路板(220)上，所述封装部(210)与所述电路板(220)相连，且所述封装部(210)包裹多个所述发光组件(230)。
  2. 根据权利要求1所述的背光模组，其中，所述第一折弯部(110)为弧形折弯部，所述背光源(200)为柔性结构。
  3. 根据权利要求1所述的背光模组，其中，所述电路板(220)朝向所述封装部(210)的一面设有反射面(221)。
  4. 根据权利要求1所述的背光模组，其中，所述光学组件(300)包括复合棱镜，所述复合棱镜与所述背光源(200)叠置。
  5. 根据权利要求1所述的背光模组，其中，所述背光源(200)的边缘延伸至所述框体(100)的边缘。
  6. 根据权利要求1所述的背光模组，其中，所述封装部(210)背离所述电路板(220)的一面为雾化面(211)。
  7. 根据权利要求1所述的背光模组，其中，所述发光组件(230)的发光面平行于所述电路板(220)所在的平面。
  8. 根据权利要求1所述的背光模组，其中，所述背光源(200)通过双面胶(400)与所述框体(100)粘接。
  9. 根据权利要求1所述的背光模组，还包括遮光胶带(500)，所述遮光胶带(500)包括第一遮光部(510)和第二遮光部(520)，所述第一遮光部(510)和所述第二遮光部(520)相连形成L形结构，所述第一遮光部(510)与所述光学组件(300)背离所述背光源(200)的一面相贴合，所述第二遮光部(520)与所述背光源(200)的外侧面、所述框体(100)的外侧面相贴 合。
  10. 根据权利要求9所述的背光模组，其中，所述第一遮光部(510)的宽度为0.15mm～0.45mm，所述第二遮光部的宽度为0.2mm～0.8mm。
  11. 一种电子设备，包括权利要求1-10中任一项所述的背光模组，还包括显示模组，所述背光模组与所述显示模组相连，且所述背光模组位于所述显示模组的下方。
  12. 根据权利要求11所述的电子设备，还包括光学器件，所述背光模组和所述光学器件设置于所述显示模组的同一侧，所述显示模组设有透光区域，所述背光模组设有通光孔，所述光学器件对应所述透光区域和所述通光孔设置。
  13. 根据权利要求11所述的电子设备，其中，所述光学器件包括指纹模组、摄像头、传感器和补光灯中的至少一者。
PCT/CN2020/131680 2019-11-29 2020-11-26 背光模组及电子设备 WO2021104351A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911207533.6A CN111221177A (zh) 2019-11-29 2019-11-29 背光模组及电子设备
CN201911207533.6 2019-11-29

Publications (1)

Publication Number Publication Date
WO2021104351A1 true WO2021104351A1 (zh) 2021-06-03

Family

ID=70830825

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/131680 WO2021104351A1 (zh) 2019-11-29 2020-11-26 背光模组及电子设备

Country Status (2)

Country Link
CN (1) CN111221177A (zh)
WO (1) WO2021104351A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111221177A (zh) * 2019-11-29 2020-06-02 维沃移动通信有限公司 背光模组及电子设备
CN112987457A (zh) * 2021-04-12 2021-06-18 维沃移动通信有限公司 电子设备
CN115035807A (zh) * 2022-05-30 2022-09-09 深圳创维－Rgb电子有限公司 显示设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160207065A1 (en) * 2015-01-15 2016-07-21 Samsung Display Co., Ltd. Method of manufacturing backlight unit of curved display device
CN206594964U (zh) * 2017-03-31 2017-10-27 广东欧珀移动通信有限公司 发光装置及移动终端
CN107728382A (zh) * 2017-11-29 2018-02-23 武汉天马微电子有限公司 背光模组及其制作方法和显示装置
CN207123684U (zh) * 2016-09-30 2018-03-20 深圳市玲涛光电科技有限公司 柔性面光源及其电子设备
CN108535916A (zh) * 2018-04-20 2018-09-14 武汉华星光电技术有限公司 直下式背光模组及其制作方法
CN109212833A (zh) * 2018-10-30 2019-01-15 厦门天马微电子有限公司 一种曲面显示装置
CN109597242A (zh) * 2018-11-12 2019-04-09 深圳市华星光电半导体显示技术有限公司 一种柔性直下式背光源及其显示装置
CN111221177A (zh) * 2019-11-29 2020-06-02 维沃移动通信有限公司 背光模组及电子设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104407460B (zh) * 2014-11-14 2017-08-25 深圳市华星光电技术有限公司 曲面显示器
CN104373871A (zh) * 2014-11-17 2015-02-25 深圳市华星光电技术有限公司 背光模组及具有该背光模组的显示器
CN104464538A (zh) * 2014-12-16 2015-03-25 京东方科技集团股份有限公司 一种显示装置
CN104791660A (zh) * 2015-04-09 2015-07-22 武汉华星光电技术有限公司 显示装置及其背光模组
CN206411383U (zh) * 2016-12-30 2017-08-15 合肥惠科金扬科技有限公司 直下式曲面背光模组
CN107942580A (zh) * 2017-11-15 2018-04-20 武汉华星光电技术有限公司 超窄边框背光模组及显示装置
CN108254975B (zh) * 2018-01-23 2021-03-02 Oppo广东移动通信有限公司 显示屏组件及电子设备
CN108172124B (zh) * 2018-01-26 2020-04-07 武汉华星光电技术有限公司 柔性显示装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160207065A1 (en) * 2015-01-15 2016-07-21 Samsung Display Co., Ltd. Method of manufacturing backlight unit of curved display device
CN207123684U (zh) * 2016-09-30 2018-03-20 深圳市玲涛光电科技有限公司 柔性面光源及其电子设备
CN206594964U (zh) * 2017-03-31 2017-10-27 广东欧珀移动通信有限公司 发光装置及移动终端
CN107728382A (zh) * 2017-11-29 2018-02-23 武汉天马微电子有限公司 背光模组及其制作方法和显示装置
CN108535916A (zh) * 2018-04-20 2018-09-14 武汉华星光电技术有限公司 直下式背光模组及其制作方法
CN109212833A (zh) * 2018-10-30 2019-01-15 厦门天马微电子有限公司 一种曲面显示装置
CN109597242A (zh) * 2018-11-12 2019-04-09 深圳市华星光电半导体显示技术有限公司 一种柔性直下式背光源及其显示装置
CN111221177A (zh) * 2019-11-29 2020-06-02 维沃移动通信有限公司 背光模组及电子设备

Also Published As

Publication number Publication date
CN111221177A (zh) 2020-06-02

Similar Documents

Publication Publication Date Title
WO2021104351A1 (zh) 背光模组及电子设备
US20210223464A1 (en) Backlight module and display device
TWI544241B (zh) 顯示裝置
TWI622818B (zh) 背光單元及包含該背光單元的行動電子裝置
CN105549265B (zh) 一种背光模组及液晶显示器
JP5426580B2 (ja) 液晶表示装置
JP2009301912A (ja) バックライトユニット及び液晶表示装置
CN109782492B (zh) 光源模组及显示装置
CN107728380A (zh) 背光模组及显示装置
WO2021115308A1 (zh) 显示屏模组与电子设备
US10295859B2 (en) Liquid crystal display device
CN213210668U (zh) 显示装置及背光模组
US9655234B2 (en) Planar illumination device
JP6303972B2 (ja) 面光源装置、表示装置、及び電子機器
JP2017126553A (ja) バックライト装置、およびこれを備える表示装置
CN113242334B (zh) 曲面屏组件及移动终端
WO2015165010A1 (zh) 导光板、液晶显示器显示模组和终端设备
CN108205170B (zh) 背光模组、显示装置及电子设备
JP2017157467A (ja) 面光源装置、表示装置、及び電子機器
WO2021104350A1 (zh) 背光模组及电子设备
TWI465810B (zh) 顯示裝置及其背光模組
CN110764313A (zh) 背光模组、其控制方法、电子设备及计算机可读存储介质
US20230215995A1 (en) Manufacturing method of a reflective display
JP5459728B2 (ja) 液晶表示装置
JP5447944B2 (ja) 面状照明装置

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: 20894209

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: 20894209

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205N DATED 20.07.2022)

122 Ep: pct application non-entry in european phase

Ref document number: 20894209

Country of ref document: EP

Kind code of ref document: A1