CN110264869B - Optical regulation and control structure, backlight module and display device - Google Patents
Optical regulation and control structure, backlight module and display device Download PDFInfo
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- CN110264869B CN110264869B CN201910503662.3A CN201910503662A CN110264869B CN 110264869 B CN110264869 B CN 110264869B CN 201910503662 A CN201910503662 A CN 201910503662A CN 110264869 B CN110264869 B CN 110264869B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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Abstract
The invention discloses an optical regulation and control structure, a backlight module and a display device, wherein the optical regulation and control structure comprises a top plate, two side plates and a light modulation structure, wherein one ends of the two side plates are respectively connected with the top plate, the other ends of the two side plates are respectively used for being installed on a reflection bottom plate so as to form a regulation and control space for covering a light source with the top plate, a first light hole penetrates through each side plate, and the light modulation structure is arranged on the inner side wall of the top plate and is used for increasing the quantity of light rays of the light source which penetrate out of the regulation and control space through the first light holes after being reflected by the top plate. According to the technical scheme, the light adjusting structure is arranged on the inner side wall of the top plate, so that the effect of light reflection is enhanced or the transmission direction of partial light is changed, the quantity of light of the light source which penetrates out of the adjusting and controlling space through the first light-transmitting hole after being reflected by the top plate is increased, the uniformity of light distribution is improved, and the display quality is also improved.
Description
Technical Field
The invention relates to the technical field of flat panel displays, in particular to an optical regulation structure, a backlight module and a display device.
Background
The optical adjusting structure is widely applied to the backlight module, and light emitted by the light source is guided by the optical adjusting structure and is emitted out of the backlight module after adjusting the transmission direction or the distribution mode of the light emitted by the light source.
Disclosure of Invention
The invention mainly aims to provide an optical regulation structure, a backlight module and a display device, aiming at improving the uniformity of light distribution and improving the display quality.
In order to achieve the above object, the present invention provides an optical modulation structure, including:
a top plate;
one end of each of the two side plates is connected with the top plate, the other end of each of the two side plates is used for being mounted on the reflection bottom plate, so that a regulation and control space for covering the light source is formed by the side plates and the top plate, and a first light hole penetrates through each side plate; and the number of the first and second groups,
the structure of adjusting luminance is located the inside wall of roof is used for increasing the light of light source certainly behind the roof reflection warp first light trap is worn out extremely adjust and control the quantity outside the space.
Optionally, the light modulation structure is a reflective layer disposed on an inner sidewall of the top plate.
Optionally, the material of the reflective layer is one of aluminum, an aluminum alloy, silver, and a silver alloy.
Optionally, the thickness of the reflecting layer is L, and L is more than or equal to 10 μm and less than or equal to 20 μm.
Optionally, the first light-transmitting hole is provided in plurality; alternatively, the first and second electrodes may be,
a plurality of second light holes penetrate through the top plate.
Optionally, the apertures of the first light-transmitting holes are different, wherein the first light-transmitting hole with a larger aperture is used for being far away from the light source relative to the first light-transmitting hole with a smaller aperture; alternatively, the first and second electrodes may be,
a plurality of the second light trap aperture is different, wherein, the aperture is great the second light trap is used for less relatively the aperture the second light trap is and keeps away from the light source setting.
Optionally, the first light-transmitting holes are arranged to have a distribution density far away from the light source greater than that of the first light-transmitting holes arranged near the light source; alternatively, the first and second electrodes may be,
the second light-transmitting holes are used for being distributed more densely far away from the light source than the second light-transmitting holes are arranged near the light source.
The invention also provides a backlight module, which comprises:
a reflective backplane;
the light source is arranged on the reflecting bottom plate; and the number of the first and second groups,
the optical regulation and control structure is arranged on the reflection bottom plate and covers the light source;
wherein the optical modulating structure comprises:
a top plate;
one end of each of the two side plates is connected with the top plate, the other end of each of the two side plates is used for being mounted on the reflection bottom plate, so that a regulation and control space for covering the light source is formed by the side plates and the top plate, and a first light hole penetrates through each side plate; and the number of the first and second groups,
the structure of adjusting luminance is located the inside wall of roof is used for increasing the light of light source certainly behind the roof reflection warp first light trap is worn out extremely adjust and control the quantity outside the space.
Optionally, the light source is provided in plurality and arranged at intervals along the length direction of the top plate.
The invention also provides a display device, which comprises a backlight module, wherein the backlight module comprises:
a reflective backplane;
the light source is arranged on the reflecting bottom plate; and the number of the first and second groups,
the optical regulation and control structure is arranged on the reflection bottom plate and covers the light source;
wherein the optical modulating structure comprises:
a top plate;
one end of each of the two side plates is connected with the top plate, the other end of each of the two side plates is used for being mounted on the reflection bottom plate, so that a regulation and control space for covering the light source is formed by the side plates and the top plate, and a first light hole penetrates through each side plate; and the number of the first and second groups,
the structure of adjusting luminance is located the inside wall of roof is used for increasing the light of light source certainly behind the roof reflection warp first light trap is worn out extremely adjust and control the quantity outside the space.
In the technical scheme provided by the invention, the first light holes penetrate through each side plate, light rays of the light source penetrate out of the first light holes, the light adjusting structure is arranged on the inner side wall of the top plate, the effect of enhancing light ray reflection is achieved or the transmission direction of partial light rays is changed, the quantity of the light rays of the light source penetrating out of the regulation and control space through the first light holes after being reflected by the top plate is increased, the uniformity of light ray distribution is improved, and the display quality is also improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a backlight module (including an optical modulation structure) according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along A-A of FIG. 1;
FIG. 3 is a schematic view of the first embodiment of the side plate of FIG. 2 taken in the direction B;
FIG. 4 is a schematic view of a second embodiment of the side panel of FIG. 2 taken in the direction B;
FIG. 5 is a schematic view of the first embodiment of the top plate of FIG. 2 looking in the direction C;
fig. 6 is a schematic view of the second embodiment of the top plate of fig. 2, viewed in the direction C.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The optical regulation structure is a high-reflectivity three-dimensional porous reflection structure, the inner side surface of the optical regulation structure has a high-reflectivity function, the transmission direction and the distribution mode of light rays emitted by a light source can be regulated, the number of the light sources can be reduced for saving cost, the adjacent light sources can be arranged at a longer distance, and the density of the light sources is reduced.
In view of the above, the present invention provides an optical modulation structure, wherein fig. 1 to 2 are schematic diagrams of an embodiment of the optical modulation structure provided by the present invention.
Referring to fig. 1 to 2, the optical control structure 100 includes a top plate 1, two side plates 2 and a light adjusting structure 3, wherein one end of each of the two side plates 2 is connected to the top plate 1, the other end of each of the two side plates is used for being mounted on the reflective bottom plate 10, so as to form a control space 4 for covering the light source 20 with the top plate 1, a first light hole 21 is formed through each of the side plates 2, and the light adjusting structure 3 is disposed on an inner side wall of the top plate 1, and is configured to increase the amount of light of the light source that is reflected by the top plate 1 and then passes through the first light hole 21 to the outside of the control space 4.
In the technical scheme provided by the invention, a first light hole 21 penetrates through each side plate 2, light of a light source 20 penetrates out of the first light hole 21, and a light adjusting structure 3 is arranged on the inner side wall of the top plate 1, so that the effect of light reflection is enhanced or the transmission direction of partial light is changed, the quantity of light of the light source 20 which penetrates out of the regulation and control space 4 through the first light hole 21 after being reflected by the top plate 1 is increased, the uniformity of light distribution is improved, and the display quality is also improved.
It should be noted that, the specific arrangement form of the light adjusting structure 3 is not limited in the present invention, for example, the light adjusting structure may be a reflective layer disposed on the inner side wall of the top plate 1, the light reflection in the original reflective area of the inner side wall of the top plate 1 is enhanced, so as to increase the amount of light penetrating out of the control space 4, or the light adjusting structure may be a diffusion structure disposed on the inner side wall of the top plate 1, so as to change the transmission direction of part of light outside the original reflective area of the inner side wall of the top plate 1, so as to increase the amount of light penetrating out of the control space 4, and of course, the reflective layer and the diffusion structure may be disposed on the inner side wall of the top plate 1 at the same time, so as to achieve the effect of well increasing the amount of light penetrating out of the control space 4.
Specifically, in the embodiment of the present invention, referring to fig. 2, the light adjusting structure 3 is a reflective layer 3a disposed on an inner sidewall of the top plate 1, so as to enhance light reflection in an original reflective area of the inner sidewall of the top plate 1 and increase the amount of light penetrating out of the adjusting space 4, the reflective layer 3a is made of one of aluminum, aluminum alloy, silver and silver alloy, if a metal coating is formed under a suitable temperature and pressure, the mirror effect is better, the quantity of the light source 20 which passes out of the regulation and control space 4 through the first light-transmitting hole 21 is increased, the uniformity of the light distribution is improved, in addition, in the embodiment of the invention, the thickness of the reflecting layer 3a is L, L is more than or equal to 10 μm and less than or equal to 20 μm, on the basis of ensuring that the reflecting layer 3a has a better regulation and control effect, the material is saved.
In an embodiment of the diffusion structure (not shown) disposed on the inner sidewall of the top plate 1, a region outside the original reflection region of the inner sidewall of the top plate 1 may be set to be a rough surface, such as a frosted surface, etc., to reduce the degree of finish outside the original reflection region of the inner sidewall of the top plate 1, so as to change the transmission direction of a part of light, or diffusion particles may be disposed at intervals in the region outside the original reflection region of the inner sidewall of the top plate 1, where the diffusion particles may be small particles made of polymethyl methacrylate (PMMA), and have a good diffusion effect on light, so that the number of light rays of the light source 20 penetrating out of the regulation and control space 4 through the first light holes 21 is increased, and the uniformity of light distribution is improved.
It should be noted that, in the embodiment of the present invention, the three-dimensional porous reflection structure of the optical adjustment structure 100 can adjust the transmission direction and the distribution manner of the light emitted by the light source 20, the side plate 2 of the optical adjustment structure 100 may have a plurality of first light holes 21 with different numbers or different apertures, so that different areas of the side plate 2 have different light transmission amounts, and similarly, the top plate 1 may also have a plurality of second light holes 11 with different numbers or different apertures, so that different areas of the top plate 1 also have different light transmission amounts.
Specifically, in order to equalize the distribution of light, in the embodiment of the invention, the optical adjustment structure 100 enables the backlight module 1000 to set a smaller light transmission amount at a position close to the light source 20, and set a larger light transmission amount at a position far from the light source 20, so as to achieve the purpose of equalizing the light, and in correspondence to the aperture and the distribution density of the light transmission holes, the light transmission holes with a larger aperture and/or a larger density are set at a position far from the light source 20, and the light transmission holes with a smaller aperture and/or a smaller density are set at a position close to the light source 20, so as to equalize the light distribution.
It should be noted that, only the aperture size of the light holes may be considered, and also the distribution density of the light holes may be considered, and of course, in consideration of the fact that the aperture size and the distribution density of the light holes can well balance the distribution of light, referring to fig. 1, only a single light hole is drawn on both the top plate 1 and the side plate 2 for the sake of simplicity, but actually, the number, the position and the size of the light holes are not limited by the drawings, specifically, referring to fig. 3, in an embodiment only considering the aperture size of the light holes, a plurality of the first light holes 21 have different apertures, wherein the first light holes 21 with larger apertures are disposed away from the light source 20 relative to the first light holes 21 with smaller apertures, and similarly, referring to fig. 5, a plurality of the second light holes 11 have different apertures, wherein the second light holes 11 with larger apertures are disposed away from the light source 20 relative to the second light holes 11 with smaller apertures, in the embodiment only considering the distribution density of the light-transmitting holes, referring to fig. 4, the distribution density of the first light-transmitting holes 21 far away from the light source 20 is greater than that of the second light-transmitting holes 11 near the light source 20, and referring to fig. 6, the distribution density of the second light-transmitting holes 11 far away from the light source 20 is greater than that of the second light-transmitting holes near the light source 20.
In addition, when considering the aperture size and the distribution density of the light transmission holes, the top plate 1 of the optical modulation structure 100 has a second light transmission hole 11 with a smaller aperture and a smaller number in the area above the corresponding light source 20 to allow a lower amount of light transmission, and relatively, the top plate 1 of the optical modulation structure 100 has a second light transmission hole 11 with a larger aperture and a larger number in the other area away from the light source 20 to provide a higher amount of light transmission; similarly, the side plate 2 of the optical adjustment structure 100 has a smaller number of first light-transmitting holes 21 with smaller apertures at a position closer to the direct light emitted by the light source 20, and the side plate 2 of the optical adjustment structure 100 has a larger number of first light-transmitting holes 21 with larger apertures at a position farther from the direct light emitted by the light source 20, so that the light emitted by the light source 20 can be transmitted outwards after the distribution pattern of the light is adjusted by the optical adjustment structure 100, thereby improving the uniformity of the light.
The invention further provides a backlight module 1000, wherein the backlight module 1000 comprises a reflection bottom plate 10, a light source 20 and an optical regulation structure 100, the light source 20 is arranged on the reflection bottom plate 10, the optical regulation structure 100 is arranged on the reflection bottom plate 10 and covers the light source 20, and the backlight module 1000 provided by the invention comprises the optical regulation structure 100, so that the backlight module has all the technical characteristics of the optical regulation structure 100 and all the technical effects of the technical characteristics, and the details are not repeated.
In an embodiment of the invention, the optical adjustment structure 100 may be fixed on the reflective bottom plate 10 of the backlight module 1000 by a rivet structure or an adhesive manner, a plurality of light sources 20 are disposed and spaced apart along the length direction of the top plate 1, and the plurality of light sources 20 and the optical adjustment structure 100 are combined to form a light bar structure for providing the light sources 20 of the backlight module 1000.
The present invention further provides a display device, which may be a computer monitor or a television, and the display device includes the backlight module 1000, and also has all technical features of the backlight module 1000, and has all technical effects of the above technical features, and details are not repeated herein.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The utility model provides an optics regulation and control structure for locate backlight unit's reflection bottom plate on, its characterized in that, optics regulation and control structure includes:
a top plate;
one end of each of the two side plates is connected with the top plate, the other end of each of the two side plates is used for being mounted on the reflection bottom plate, so that a regulation and control space for covering the light source is formed by the side plates and the top plate, and a first light hole penetrates through each side plate; and the number of the first and second groups,
the light adjusting structure is arranged on the inner side wall of the top plate and used for increasing the quantity of light rays of the light source which are reflected by the top plate and then penetrate out of the adjusting space through the first light-transmitting hole;
the light adjusting structure is a reflecting layer arranged on the inner side wall of the top plate;
an original reflection area is formed on the inner wall surface of the top plate, and light rays are reflected by the original reflection area and then penetrate out of the regulation and control space through the first light-transmitting hole;
the inner wall surface of the top plate is arranged in a region outside the original reflection region to form a rough surface, and diffusion particles are arranged on the rough surface and made of polymethyl methacrylate;
the first light holes are arranged in a plurality, and a plurality of second light holes penetrate through the top plate;
the distribution density of the plurality of first light-transmitting holes far away from the light source is greater than that of the plurality of first light-transmitting holes near the light source;
the distribution density of the second light holes far away from the light source is greater than that of the second light holes near the light source.
2. The optical modulating structure of claim 1 wherein the reflective layer is made of one of aluminum, aluminum alloy, silver and silver alloy.
3. The optical modulating structure of claim 1 wherein the reflective layer has a thickness L and 10 μm L20 μm.
4. The optical modulating structure of claim 1, wherein a plurality of said first light transmitting holes have different apertures, wherein the first light transmitting hole with a larger aperture is located away from said light source relative to the first light transmitting hole with a smaller aperture; alternatively, the first and second electrodes may be,
a plurality of the second light trap aperture is different, wherein, the aperture is great the relative aperture of second light trap is less the second light trap is and keeps away from the light source setting.
5. A backlight module, comprising:
a reflective backplane;
the light source is arranged on the reflecting bottom plate; and the number of the first and second groups,
an optical control structure disposed on the reflective bottom plate and configured to cover the light source, wherein the optical control structure is as claimed in any one of claims 1 to 4.
6. The backlight module according to claim 5, wherein the light source is provided in plurality and spaced apart along a length direction of the top plate.
7. A display device, comprising the backlight module according to any one of claims 5 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910503662.3A CN110264869B (en) | 2019-06-11 | 2019-06-11 | Optical regulation and control structure, backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910503662.3A CN110264869B (en) | 2019-06-11 | 2019-06-11 | Optical regulation and control structure, backlight module and display device |
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| Publication Number | Publication Date |
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| CN110264869A CN110264869A (en) | 2019-09-20 |
| CN110264869B true CN110264869B (en) | 2022-04-01 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08153405A (en) * | 1994-06-21 | 1996-06-11 | Nakaya:Kk | Planar light source |
| CN102933894A (en) * | 2010-06-08 | 2013-02-13 | Opto设计股份有限公司 | Planar light source device and illumination apparatus |
| CN105674154A (en) * | 2015-12-11 | 2016-06-15 | 友达光电股份有限公司 | Backlight module and three-dimensional optical regulation and control assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI326381B (en) * | 2005-12-23 | 2010-06-21 | Gigno Technology Co Ltd | Backlight module for liquid crystal display device |
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2019
- 2019-06-11 CN CN201910503662.3A patent/CN110264869B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08153405A (en) * | 1994-06-21 | 1996-06-11 | Nakaya:Kk | Planar light source |
| CN102933894A (en) * | 2010-06-08 | 2013-02-13 | Opto设计股份有限公司 | Planar light source device and illumination apparatus |
| CN105674154A (en) * | 2015-12-11 | 2016-06-15 | 友达光电股份有限公司 | Backlight module and three-dimensional optical regulation and control assembly |
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| CN110264869A (en) | 2019-09-20 |
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