CN114236670A - Backlight structure and display device - Google Patents
Backlight structure and display device Download PDFInfo
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- CN114236670A CN114236670A CN202111620093.4A CN202111620093A CN114236670A CN 114236670 A CN114236670 A CN 114236670A CN 202111620093 A CN202111620093 A CN 202111620093A CN 114236670 A CN114236670 A CN 114236670A
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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
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
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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
- 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
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
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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
- 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
- G02B6/0091—Positioning aspects of the light source relative to the light guide
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- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The application belongs to the technical field of display, and particularly relates to a backlight structure and a display device. The backlight structure in this application includes: the light guide ball body comprises a plurality of light guide parts which are sequentially spliced, each light guide part comprises an inner surface and an outer surface which are opposite in the radial direction, and a splicing surface connected with the inner surface and the outer surface, a reflecting layer is arranged on the inner surface, the outer surface is a light emitting surface, and the splicing surface is a light incident surface; the light bar structure comprises a substrate and at least one light source arranged on the substrate, wherein the light source is arranged between the splicing surfaces of the two adjacent light guide parts and irradiates the splicing surfaces. This application forms the leaded light spheroid through splicing a plurality of light guide parts in proper order to locate the light source between the concatenation face of two adjacent light guide parts, make the light that the light source sent lead the light and reflect through the reflector layer of light guide part internal surface through the light guide part like this, with the surface outgoing from light guide part, thereby can form spherical area source, with the spherical display panel of adaptation, realize the demonstration of 360 full visual angles.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a backlight structure and a display device.
Background
At present, display product designs are all plane or curved surface displays, but with the increasing demands of users, in some special scene displays, for example: museums, science and technology museums, enterprise exhibition halls, exhibition halls and the like need to realize 360-degree full-view display in order to better display contents, but the flat or curved surface display cannot meet the requirements of users.
Disclosure of Invention
An object of the application is to provide a structure and display device in a poor light, can realize 360 full visual angles and show.
In order to achieve the above object, the present application provides a backlight structure, including:
the light guide ball body comprises at least two light guide parts which are sequentially spliced, each light guide part comprises an inner surface and an outer surface which are opposite in the radial direction, and a splicing surface connected with the inner surface and the outer surface, a reflecting layer is arranged on the inner surface, the outer surface is a light emitting surface, and the splicing surface is a light incident surface;
and the light bar structure comprises a substrate and at least one light source arranged on the substrate, and the light source is arranged between the splicing surfaces of two adjacent light guide parts and irradiates the splicing surfaces.
Optionally, the splicing surface of the light guide part is an annular surface.
Optionally, two light guide portions are arranged and are hemispherical; wherein, the splicing surfaces of the two light guide parts are completely overlapped.
Optionally, the substrate is a ring structure;
the at least one light source comprises a first light source and a second light source, and the first light source and the second light source are both arranged on the inner annular surface of the substrate or both arranged on the outer annular surface of the substrate;
in two adjacent light guide parts, the first light source irradiates the splicing surface of one light guide part, and the second light source irradiates the splicing surface of the other light guide part.
Optionally, the substrate is a ring-shaped structure, and the substrate has a first side and a second side opposite to each other in the axial direction of the substrate;
the at least one light source comprises a first light source disposed on the first side and a second light source disposed on the second side;
in two adjacent light guide parts, the first light source irradiates the splicing surface of one light guide part, and the second light source irradiates the splicing surface of the other light guide part.
Optionally, the substrate is a ring structure;
each light source is positioned on the inner annular surface of the substrate or positioned on the outer annular surface of the substrate, and each light source is provided with a first light emitting surface and a second light emitting surface;
in two adjacent light guide parts, the first light emitting surface faces the splicing surface of one light guide part, and the second light emitting surface faces the splicing surface of the other light guide part.
Optionally, an installation seat is arranged on the inner side of the light guide part at the outermost two sides in the light guide sphere;
the backlight structure also comprises a support rod arranged in the light guide sphere, and two ends of the support rod are respectively spliced with the mounting seats of the light guide parts on the outermost two sides.
Optionally, the backlight structure further comprises a battery, and the battery is arranged on the supporting rod;
the base plate is the circuit board, lamp strip structure still includes at least one conducting rod, the one end of conducting rod with the base plate electricity is connected, the other end with the battery electricity is connected.
Optionally, the substrate is a ring structure;
the conducting rods are arranged in a plurality and are sequentially arranged along the circumferential direction of the substrate, the conducting rods extend in the radial direction of the substrate, and one end, far away from the substrate, of each conducting rod is connected in an insulating mode and surrounds an assembly through hole for the supporting rod to penetrate through;
the battery is of an annular structure, is sleeved outside the supporting rod and is at least partially positioned in the assembling through hole.
The present application further provides a display device, comprising the backlight structure described in any of the above and a spherical display panel surrounding the outside of the backlight structure.
The backlight structure and the display device disclosed by the application have the following beneficial effects:
the light guide ball body is formed by sequentially splicing the light guide parts, the splicing surfaces of the light guide parts are light incidence surfaces, the light source is arranged between the splicing surfaces of the two adjacent light guide parts and irradiates the splicing surfaces, so that light rays emitted by the light source enter the light guide parts through the splicing surfaces, wherein one part of the light rays in the light guide parts can be directly emitted out through the outer surfaces of the light guide parts, the other part of the light rays can be emitted out from the outer surfaces of the light guide parts after being reflected by the reflecting layers on the inner surfaces of the light guide parts, namely, the light rays emitted by the light source can be emitted out from the whole outer spherical surface of the light guide ball body through the light guide parts and the reflecting layers on the light guide parts, so that a spherical surface light source is formed, the spherical surface light source can be used for adapting to a spherical display panel, and 360-degree full visual angle display is realized.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 shows a schematic structural diagram of a backlight structure described in the first embodiment of the present application;
FIG. 2 shows an enlarged schematic view of the structure shown at A in FIG. 1;
fig. 3 is a schematic structural diagram illustrating a backlight structure described in the second embodiment of the present application;
FIG. 4 shows an enlarged schematic view of the structure shown in FIG. 3 at B;
fig. 5 is a schematic structural diagram illustrating a backlight structure described in the third embodiment of the present application;
FIG. 6 shows an enlarged schematic view of the structure shown in FIG. 5 at C;
fig. 7 is a schematic structural diagram of a display device described in embodiment four of the present application.
Description of reference numerals:
100. a backlight structure; 110. a light guide part; 111. a reflective layer; 112. splicing the surfaces; 113. a mounting seat; 114. an outer surface; 120. a light bar structure; 121. a substrate; 122. a light source; 1221. a first light source; 1222. a second light source; 130. a support bar; 140. a battery; 150. a conductive rod; 200. a spherical display panel; 210. a panel unit.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.
The present application will be described in further detail with reference to the following drawings and specific examples. It should be noted that the technical features mentioned in the embodiments of the present application described below may be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
Example one
Referring to fig. 1 and 2, a backlight structure 100 of the present application may include: a light guiding sphere and at least one light bar structure 120.
The light guiding sphere may comprise at least two light guiding portions 110 sequentially spliced, the light guiding portions 110 comprising radially opposite inner and outer surfaces 114 and a splicing surface 112 connected to the inner and outer surfaces 114 thereof. It should be understood that the light guide sphere is a spherical hollow structure, and after the light guide portions 110 are sequentially spliced, the outer surface 114 of each light guide portion 110 can be spliced into an outer spherical surface of the light guide sphere, and the inner surface of each light guide portion 110 can be spliced into an inner spherical surface of the light guide sphere.
The splicing surface 112 of the light guide portion 110 may be a light incident surface, and the outer surface 114 of the light guide portion 110 may be a light emitting surface, that is: the outer spherical surface of the light guide sphere can be a light-emitting surface.
The light bar structure 120 may include a substrate 121 and at least one light source 122 disposed on the substrate 121, the light source 122 is disposed between the splicing surfaces 112 of two adjacent light guide portions 110 and irradiates the splicing surfaces 112, and light emitted by the light source 122 may enter the light guide portion 110 through the splicing surfaces 112 of the light guide portions 110, and is emitted from the outer surface 114 of the light guide portion 110 after being guided by the light guide portions 110.
In order to increase the amount of light emitted from the outer surface 114 of the light guide unit 110, a reflective layer 111 may be disposed on the inner surface of the light guide unit 110 to reflect the light emitted from the inner surface of the light guide unit 110 and to emit the light from the outer surface 114 of the light guide unit 110, thereby increasing the light utilization efficiency.
In this embodiment, the light guide portions 110 are sequentially spliced to form a light guide sphere, the splicing surfaces 112 of the light guide portions 110 are light incident surfaces, the light source 122 is disposed between the splicing surfaces 112 of two adjacent light guide portions 100 and irradiates the splicing surfaces 112, so that the light emitted by the light source 122 enters the light guide portions 110 through the splicing surfaces 112, wherein a part of the light in the light guide portions 110 can be directly emitted through the outer surfaces 114 of the light guide portions 110, and another part of the light can be emitted from the outer surfaces 114 of the light guide portions 110 after being reflected by the reflective layers 111 on the inner surfaces of the light guide portions 110, that is, the light emitted by the light source can be emitted from the entire outer spherical surface of the light guide sphere through each light guide portion 110 and the reflective layers 111 thereon to form a spherical surface light source, which can be adapted to the spherical display panel 200, as shown in fig. 7, so as to implement 360 ° full-view display.
Exemplarily, the light guide portions 110 are at least two and are sequentially arranged in the diameter direction of the light guide sphere, that is, the planes where the plurality of splicing surfaces 112 are located are arranged in parallel, the light guide sphere is divided into the plurality of light guide portions 110 by the plurality of parallel planes, the splicing surfaces 112 of the light guide portions 110 may be annular surfaces, and thus the light guide sphere is formed by the design of the light guide sphere, and meanwhile, the light bar structure 120 is also convenient to install.
Specifically, the light guide part 110 may be two and hemispherical, so that the design is convenient and the assembly is simple. The splicing surfaces 112 of the two light guide portions 110 can be completely overlapped, so that the light guide area and the light guide effect of each position are ensured.
For example, the light guide part 110 can be manufactured by injection molding, the material of the light guide part can be polycarbonate or similar transparent material, and the reflective layer 111 inside the light guide part 110 can be white paint.
It should be understood that the plurality of light guide portions 110 are not limited to being sequentially arranged in the diameter direction of the light guide sphere, that is: the joining surface 112 of the light guide portion 110 is not limited to a ring-shaped surface, and the joining surface 112 of the light guide portion 110 may be a non-ring-shaped surface, for example: the light guide parts 110 are at least three, and are sequentially and rotatably spliced to form the light guide sphere by taking the diameter of the light guide sphere as a rotation axis, at the moment, the splicing surface 112 of the light guide part 110 can be a semi-annular surface, wherein the light guide part 110 can even be set to be in any shape, and a plurality of light guide parts 110 with the same or different shapes are sequentially spliced to form the light guide sphere according to specific conditions.
In addition, it should be further noted that, when the at least three light guide portions 110 are sequentially and rotatably spliced to form the light guide sphere by using the diameter of the light guide sphere as the rotation axis, the light bar structures 120 disposed in the splicing seams may illuminate the splicing surfaces 112 on both sides, or only illuminate the splicing surface 112 on one side, and the light bar structures 120 do not need to be covered with the whole splicing seams.
The following mainly takes the case that two light guide portions 110 are disposed and are hemispherical, and the arrangement and design of the light bar structure 120 will be described in detail.
Referring to fig. 2, the light bar structure 120 may include a substrate 121 and a light source 122, where the substrate 121 is a ring structure. And the light source 122 may include a first light source 1221 and a second light source 1222, and the first light source 1221 and the second light source 1222 may be disposed at one side of the substrate 121, for example: are all arranged on the inner ring surface of the substrate 121, and at this time, the substrate 121 is arranged outside the light guide sphere to cover the splicing seam between the two light guides 110.
In two adjacent light guide portions 110, the first light source 1221 illuminates the splicing surface 112 of one light guide portion 110, and the second light source 1222 illuminates the splicing surface 112 of the other light guide portion 110.
If the first light source 1221 and the second light source 1222 are both disposed on the inner annular surface of the substrate 121, when the first light source 1221 and the second light source 1222 are disposed between the splicing surfaces 112 of two adjacent light guide portions 110, the substrate 121 may be located outside the light guide sphere, and the substrate 121 may shield the splicing seam between the two adjacent light guide portions 110 while playing a role of connecting the first light source 1221 and the second light source 1222 and supplying power to the first light source 1221 and the second light source 1222, so as to prevent light from leaking out from the splicing seam, and ensure that the light is emitted out through the outer surface 114 of the light guide portion 110 as far as possible.
It should be noted that the first Light source 1221 and the second Light source 1222 may be both LEDs (Light Emitting diodes), and the substrate 121 may be a circuit board made of FR4 board (epoxy glass cloth laminate), but is not limited thereto, and may also be other printed circuit board substrates.
It should be understood that the first light source 1221 and the second light source 1222 are not limited to be disposed on the inner annular surface of the substrate 121, but may be disposed on the outer annular surface of the substrate 121, in which case the substrate 121 is disposed inside the light guiding sphere, covering the stitching seam between the two light guiding bodies 110. The substrate 121 not only carries the first light source 1221 and the second light source 1222 but also serves as a connecting member connecting the two light guide portions 110.
The number of the first light sources 1221 may be multiple and the first light sources are distributed at equal intervals along the circumferential direction of the substrate 121; accordingly, the plurality of second light sources 1222 are also distributed along the circumferential direction of the substrate 121 at equal intervals to ensure that the light is uniformly incident into the light guide portion 110, so as to ensure that the light guide sphere uniformly emits light from all positions.
For example, positive and negative electrode leads may be disposed between the first light source 1221 and the second light source 1222, wherein the first light source 1221 and the second light source 1222 are axially aligned to facilitate disposing the positive and negative electrode leads, but are not limited thereto and may be misaligned.
Referring to fig. 1, at least three light guide portions 110 are arranged and sequentially arranged in the diameter direction of the light guide sphere, that is, the planes where the plurality of splicing surfaces 112 are located are arranged in parallel, the plurality of parallel planes partition the light guide sphere into the plurality of light guide portions 110, and at this time, the inner sides of the light guide portions 110 located at the outermost two sides in the light guide sphere can be provided with mounting seats 113; when two light guide portions 110 are formed in a hemispherical shape, the mounting seat 113 may be formed inside the two light guide portions 110. The backlight structure 100 may further include a supporting rod 130 disposed in the light guiding sphere, two ends of the supporting rod 130 are respectively inserted into the mounting seats 113 of the light guiding portions 110 at two outermost sides, and the light guiding portions 110 are connected by using an insertion manner, so that the connection stability is ensured and the assembly difficulty is reduced.
It should be noted that the two light guide portions 110 are connected by the support rod 130, and the support rod 130 and the light guide portion 110 can be connected in various ways, not limited to the insertion connection by the mounting base 113. For example, the light guide 110 and the support bar 130 may be directly bonded.
When the mounting base 113 is connected to the support rod 130, the mounting base 113 may be a rubber sleeve bonded to the inner side of the light guide portion 110, the rubber sleeve is inserted into each of the two ends of the support rod 130 to connect the two light guide portions 110, but not limited thereto, the mounting base 113 may also be a boss on the inner side of the light guide portion 110, and a groove for inserting the boss is correspondingly formed in each of the two ends of the support rod 130.
Referring to fig. 1, the backlight structure 100 further includes a battery 140, the battery 140 is disposed on the supporting rod 130, the light bar structure 120 further includes at least one conductive rod 150, one end of the conductive rod 150 is electrically connected to the substrate 121, and the other end of the conductive rod 150 is electrically connected to the battery 140, that is, the battery 140 can supply power to the substrate 121 through the conductive rod 150, so as to illuminate the light source on the substrate 121.
One conductive rod 150 may be provided, but is not limited thereto, and a plurality of conductive rods 150 may also be provided, when a plurality of conductive rods 150 are provided, the conductive rods 150 may be sequentially arranged along the circumferential direction of the substrate 121, the conductive rods 150 extend in the radial direction of the substrate 121, and one end of each conductive rod 150, which is far away from the substrate 121, is connected in an insulating manner and encloses an assembly via hole through which the support rod 130 passes. The substrate 121 is disposed outside the light guiding sphere, the conductive rod 150 passes between the first light source 1221 and the second light source 1222, passes between the two first light sources 1221, or passes between the two second light sources 1222 and is connected to the substrate 121, the substrate 121 is disposed inside the light guiding sphere, and the conductive rod 150 directly connects the substrate 121 and the battery 140.
The battery 140 may be a ring-shaped structure, which is disposed on the outside of the supporting rod 130 and at least partially located in the assembling through hole, so as to be connected to each conductive rod 150.
It should be noted that the conductive rod 150 can also serve as a supporting member for supporting the substrate 121, so as to improve the structural strength of the light bar structure 120. For example, the conductive rod 150 may include an insulating base material and conductive wires disposed in the insulating base material, the conductive wires being used to electrically connect the battery 140 and the substrate 121, and the insulating base materials being connected to each other to improve the overall structural strength. In addition, the battery 140 is not limited to be in a ring structure, the battery 140 may even be made in any shape, and the battery 140 and the support rod 130 may be connected by a bonding method.
Example two
The backlight structure of the second embodiment is mainly different from the backlight structure of the first embodiment in that: the design of light bar structure 120 is different, and the specific design of light bar structure 120 in this embodiment is as follows:
as shown in fig. 3 and 4, each light source 122 of the light bar structure 120 is located on the outer annular surface of the substrate 121, and the light sources 122 are LEDs and are arranged in an upper and lower dual-crystal structure, that is: the light source 122 itself has a first and a second light emitting face. In two adjacent light guide portions 110, the first light emitting surface faces the splicing surface 112 of one light guide portion 110, and the second light emitting surface faces the splicing surface 112 of the other light guide portion 110. The first and second light emitting surfaces are attached to their corresponding splicing surfaces 112 to avoid light leakage.
The light source 122 is not limited to be disposed on the outer circumferential surface of the substrate 121, but may be disposed on the inner circumferential surface of the substrate 121. The number of the light sources 122 is plural and the light sources are distributed at equal intervals along the circumferential direction of the substrate 121 to ensure the uniformity of light at all positions.
Referring to fig. 3, the light guiding sphere may have mounting seats 113 disposed inside the light guiding portions 110 at two outermost sides, and the backlight structure 100 may further include a supporting rod 130 disposed inside the light guiding sphere, wherein two ends of the supporting rod 130 are respectively inserted into the mounting seats 113 of the light guiding portions 110 at two outermost sides. The backlight structure 100 further includes a battery 140, the battery 140 is disposed on the supporting rod 130, the light bar structure 120 further includes at least one conductive rod 150, one end of the conductive rod 150 is electrically connected to the substrate 121, and the other end of the conductive rod 150 is electrically connected to the battery 140, that is, the battery 140 can supply power to the substrate 121 through the conductive rod 150, so as to illuminate the light source on the substrate 121. One conductive rod 150 may be provided, but is not limited thereto, and a plurality of conductive rods 150 may also be provided, when a plurality of conductive rods 150 are provided, the conductive rods 150 may be sequentially arranged along the circumferential direction of the substrate 121, the conductive rods 150 extend in the radial direction of the substrate 121, and one end of each conductive rod 150, which is far away from the substrate 121, is connected in an insulating manner and encloses an assembly via hole through which the support rod 130 passes. The battery 140 may be a ring-shaped structure, which is disposed on the outside of the supporting rod 130 and at least partially located in the assembling through hole, so as to be connected to each conductive rod 150.
It should be noted that, the light source 122 is located on the outer circumferential surface of the substrate 121, the substrate 121 is located inside the light guiding sphere, the substrate 121 covers the splicing seam between the two light guiding bodies 110 to prevent light from leaking out from the splicing seam, and ensure that the light is emitted out through the outer surface 114 of the light guiding body 110 as much as possible, and the conducting rod 150 is directly connected to the substrate 121 and the battery 140; correspondingly, the light sources 122 are located on the inner annular surface of the substrate 121, the substrate 121 is disposed outside the light guide sphere, the substrate 121 covers the splicing seam between two light guides 110, and the conductive rod 150 passes through between two adjacent light sources 122 and connects the substrate 121 and the battery 140.
In the second embodiment, except for the difference between the light bar structure 120 and the first embodiment, other structures can be configured according to the first embodiment, and thus, the description thereof is not repeated.
EXAMPLE III
The backlight structure of the third embodiment is mainly different from the backlight structure of the first embodiment in that: the design of light bar structure 120 is different, and the specific design of light bar structure 120 in this embodiment is as follows:
referring to fig. 5 and 6, light bar structure 120 can include a substrate 121 and a light source 122, where substrate 121 is a ring-shaped structure having a first side and a second side opposite to each other in an axial direction of substrate 121. The light source 122 includes a first light source 1221 and a second light source 1222, the first light source 1221 being disposed on a first side, the second light source 1222 being disposed on a second side. In two adjacent light guide portions 110, the first light source 1221 illuminates the splicing surface 112 of one light guide portion 110, and the second light source 1222 illuminates the splicing surface 112 of the other light guide portion 110, so as to avoid light leakage.
It should be noted that the first light source 1221 and the second light source 1222 may both be LEDs. The number of the first light sources 1221 may be multiple and the first light sources are distributed at equal intervals along the circumferential direction of the substrate 121; accordingly, the plurality of second light sources 1222 are also distributed along the circumferential direction of the substrate 121 at equal intervals to ensure that the light is uniformly incident into the light guide portion 110, so as to ensure that the light guide sphere uniformly emits light from all positions. The first light source 1221 and the second light source 1222 are aligned in the axial direction to facilitate the arrangement of the positive and negative electrode leads, but are not limited thereto and may be misaligned. The substrate 121 not only carries the first light source 1221 and the second light source 1222 but also serves as a connecting member, and the first side and the second side are coated with adhesive, so that the two light guide portions 110 can be connected.
Referring to fig. 5, the light guiding sphere may have mounting seats 113 disposed inside the light guiding portions 110 at two outermost sides, and the backlight structure 100 may further include a supporting rod 130 disposed inside the light guiding sphere, wherein two ends of the supporting rod 130 are respectively inserted into the mounting seats 113 of the light guiding portions 110 at two outermost sides. The backlight structure 100 further includes a battery 140, the battery 140 is disposed on the supporting rod 130, the light bar structure 120 further includes at least one conductive rod 150, one end of the conductive rod 150 is electrically connected to the substrate 121, and the other end of the conductive rod 150 is electrically connected to the battery 140, that is, the battery 140 can supply power to the substrate 121 through the conductive rod 150, so as to illuminate the light source on the substrate 121. One conductive rod 150 may be provided, but is not limited thereto, and a plurality of conductive rods 150 may also be provided, when a plurality of conductive rods 150 are provided, the conductive rods 150 may be sequentially arranged along the circumferential direction of the substrate 121, the conductive rods 150 extend in the radial direction of the substrate 121, and one end of each conductive rod 150, which is far away from the substrate 121, is connected in an insulating manner and encloses an assembly via hole through which the support rod 130 passes. The battery 140 may be a ring-shaped structure, which is sleeved outside the supporting rod 130 and at least partially located in the assembling through hole so as to be connected to each conductive rod 150, and two ends of each conductive rod 150 are respectively connected to the inner ring surface of the substrate 121 and the outer ring surface of the battery 140.
In the third embodiment, except for the difference between the light bar structure 120 and the first embodiment, other structures can be configured according to the first embodiment, and thus, the description thereof is not repeated.
Example four
Referring to fig. 1 to 7, the present application provides a display device including the backlight structure 100 described in any one of the first to third embodiments and the spherical display panel 200 surrounding the backlight structure 100. For example, the spherical display panel 200 may be a liquid crystal display.
Specifically, the spherical display panel 200 may include at least two panel units 210, as shown in fig. 7, the panel units 210 may be hemispherical shell structures, and the two panel units 210 are spliced to form the spherical display panel 200.
It should be understood that the spherical display panel 200 is split into a plurality of panel units 210 so that the backlight structure 100 is disposed inside the spherical display panel 200. The panel unit 210 is not limited to a hemispherical shell structure, and may be provided in any shape, and a plurality of the same or different panel units 210 may be joined to form the spherical display panel 200.
In the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description herein, references to the description of the terms "some embodiments," "exemplary," etc. mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or exemplary is included in at least one embodiment or exemplary of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present application have been shown and described, it is understood that the above embodiments are illustrative and should not be construed as limiting the present application and that various changes, modifications, substitutions and alterations can be made therein by those skilled in the art within the scope of the present application, and therefore all changes and modifications that come within the meaning of the claims and the description of the invention are to be embraced therein.
Claims (10)
1. A backlight structure, comprising:
the light guide ball body comprises at least two light guide parts which are sequentially spliced, each light guide part comprises an inner surface and an outer surface which are opposite in the radial direction, and a splicing surface connected with the inner surface and the outer surface, a reflecting layer is arranged on the inner surface, the outer surface is a light emitting surface, and the splicing surface is a light incident surface;
and the light bar structure comprises a substrate and at least one light source arranged on the substrate, and the light source is arranged between the splicing surfaces of two adjacent light guide parts and irradiates the splicing surfaces.
2. The backlight structure according to claim 1, wherein the splicing surface of the light guide part is an annular surface.
3. The backlight structure according to claim 2, wherein the light guide portions are two and hemispherical; wherein, the splicing surfaces of the two light guide parts are completely overlapped.
4. The backlight structure according to claim 2 or 3,
the substrate is of an annular structure;
the at least one light source comprises a first light source and a second light source, and the first light source and the second light source are both arranged on the inner annular surface of the substrate or both arranged on the outer annular surface of the substrate;
in two adjacent light guide parts, the first light source irradiates the splicing surface of one light guide part, and the second light source irradiates the splicing surface of the other light guide part.
5. The backlight structure according to claim 2 or 3,
the substrate is of an annular structure and is provided with a first side surface and a second side surface which are opposite in the axial direction;
the at least one light source comprises a first light source disposed on the first side and a second light source disposed on the second side;
in two adjacent light guide parts, the first light source irradiates the splicing surface of one light guide part, and the second light source irradiates the splicing surface of the other light guide part.
6. The backlight structure according to claim 2 or 3,
the substrate is of an annular structure;
each light source is positioned on the inner annular surface of the substrate or positioned on the outer annular surface of the substrate, and each light source is provided with a first light emitting surface and a second light emitting surface;
in two adjacent light guide parts, the first light emitting surface faces the splicing surface of one light guide part, and the second light emitting surface faces the splicing surface of the other light guide part.
7. The backlight structure according to claim 2 or 3,
the inner sides of the light guide parts positioned at the outermost two sides in the light guide ball body are provided with mounting seats;
the backlight structure also comprises a support rod arranged in the light guide sphere, and two ends of the support rod are respectively spliced with the mounting seats of the light guide parts on the outermost two sides.
8. The backlight structure according to claim 7,
the backlight structure also comprises a battery, and the battery is arranged on the supporting rod;
the base plate is the circuit board, lamp strip structure still includes at least one conducting rod, the one end of conducting rod with the base plate electricity is connected, the other end with the battery electricity is connected.
9. The backlight structure according to claim 8,
the substrate is of an annular structure;
the conducting rods are arranged in a plurality and are sequentially arranged along the circumferential direction of the substrate, the conducting rods extend in the radial direction of the substrate, and one end, far away from the substrate, of each conducting rod is connected in an insulating mode and surrounds an assembly through hole for the supporting rod to penetrate through;
the battery is of an annular structure, is sleeved outside the supporting rod and is at least partially positioned in the assembling through hole.
10. A display device comprising the backlight structure according to any one of claims 1 to 9 and a spherical display panel surrounding the outside of the backlight structure.
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| CN114236670B (en) | 2024-04-02 |
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