CN218037598U - High brightness module screen - Google Patents
High brightness module screen Download PDFInfo
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- CN218037598U CN218037598U CN202222403425.XU CN202222403425U CN218037598U CN 218037598 U CN218037598 U CN 218037598U CN 202222403425 U CN202222403425 U CN 202222403425U CN 218037598 U CN218037598 U CN 218037598U
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Abstract
The application discloses hi-lite module screen, including module installation pond install a plurality of groups luminescent substrate in the module installation pond, module installation pond includes the frame of lamp house backplate and step form install liquid crystal glazing in the frame it has a plurality of LED lamp pearl according to predetermineeing interval arrangement on the luminescent substrate be equipped with optical plate and optical diaphragm between luminescent substrate and the liquid crystal glazing still install on the lamp house backplate and be used for drive and control the control circuit of the LED lamp pearl on every luminescent substrate, form the mixed light space between frame, luminescent substrate and the optical plate, lay the diffuse reflection membrane that is used for reflecting LED lamp pearl light in the mixed light space. The utility model provides reinforcing light is retrieved and is utilized in the limited mixed light space of this application, reduces the light loss and increases the light efficiency, does not need to add under the condition of very much optical film piece and lens simultaneously, reduces the lamp shadow phenomenon between the LED lamp pearl, makes its display effect more outstanding.
Description
Technical Field
The utility model relates to a display device particularly relates to a hi-lite module screen.
Background
Liquid Crystal Displays (LCDs) become mainstream flat panel display devices and are the key point of the worldwide development in China, however, since liquid crystals do not have the light emitting characteristic, a backlight source becomes an indispensable important component of the liquid crystal display, and the performance of the backlight source directly determines the display effect of the liquid crystal display. At present, light Emitting Diodes (LEDs) are often used as backlight sources of LCDs, and are classified into side-entry and direct-exit structures. Side-in type LED backlights are generally used for small and medium sized LCDs, and direct type LED backlights are generally used for large sized LCDs.
Under the trend that LCD product is becoming slim day by day, the backlight is in order to guarantee luminance and definition in limited space, can adopt more LED quantity usually, and more complicated LED encapsulation design or the optics diaphragm or the panel of higher end, but this is that these solution side can cause manufacturing cost to increase a bit, is unfavorable for enterprise's operation development, then can cause the product energy consumption height a bit, and it is big to carry heat dissipation pressure, causes the influence to LCD's normal use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hi-lite module screen is particularly under the prerequisite of a assurance hi-lite and definition, low cost and production convenience.
In order to realize foretell purpose, this application provides a hi-lite module screen, including module installation pond install a plurality of groups in the module installation pond and send out optical substrate, the module installation pond includes the frame of lamp house backplate and step form install liquid crystal glazing in the frame it has a plurality of LED lamp pearl according to predetermineeing interval arrangement on the optical substrate be equipped with optical plate and optical diaphragm between optical substrate and the liquid crystal glazing still install on the lamp house backplate and be used for drive and control the control circuit of the last LED lamp pearl of every light emitting substrate, form between frame, light emitting substrate and the optical plate and mix the light space, it has the diffuse reflection membrane that is used for reflecting LED lamp pearl light to lay in mixing the light space.
Further, the light-emitting substrate is laid on the lamp box back plate, the optical plate is a diffusion plate, the optical membrane is a diffusion film, and the diffuse reflection film is laid on the inclined surface of the frame and the surface of the light-emitting substrate.
Further, the distance between each LED lamp bead satisfies the following formula: p = OD/tan θ, where P is a distance between the LED beads, OD is a vertical distance from the light-emitting substrate to the diffusion plate, and θ is an included angle between a maximum light-emitting angle of the LED beads and the light-emitting substrate.
Furthermore, the frame comprises four long-strip-shaped frame bodies and L-shaped connecting pieces for connecting the frame bodies, the frame bodies comprise hollow step-shaped installation cavities, fixing plates extend outwards from the bottom surfaces of the installation cavities, U-shaped grooves are further arranged on the side edges of the installation cavities, and corresponding first threaded holes are formed in the U-shaped grooves and the side edges of the installation cavities.
Furthermore, the two ends of the connecting piece are provided with hollow step-shaped connecting ends, the shapes of the connecting ends can be matched with the shape of the installation cavity, so that the connecting ends can be tightly inserted into the installation cavity, the top surfaces and the bottom surfaces of the installation cavity and the connecting ends are provided with corresponding second threaded holes, and the fixing plate and the lamp box back plate are provided with corresponding third threaded holes.
Further, an aluminum middle plate is arranged between the light box back plate and the light emitting substrate, and corresponding fourth threaded holes are formed in the light box back plate and the aluminum middle plate.
Further, the light-emitting substrate is laid on the frame, the optical plate is a light guide plate, the optical diaphragm is a prism film, the LED lamp beads are right opposite to the side edge of the light guide plate, and the diffuse reflection film is laid between the light-emitting substrate and the light guide plate.
Furthermore, a diffuse reflection film is laid between the light guide plate and the lamp box back plate.
Further, the distance between each LED lamp bead satisfies the following formula: A/P ≧ 1, wherein P is the interval between each LED lamp pearl, and A is the distance between light-emitting substrate and the light guide plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the diffuse reflection film is arranged in the light mixing space, so that the light recovery and utilization are enhanced in the limited light mixing space, the light loss is reduced, and the light effect is improved;
2. by effectively setting the distance between the LED lamp beads, the lamp shadow phenomenon between the LED lamp beads is reduced under the condition that a great number of optical films and lenses are not required to be added, so that the display effect is more excellent;
3. the frame through to the module installation pond adopts stepped hollow material concatenation to form, adopts through the screw rod with each part fixed connection, reaches to save the cost and shortens development cycle effect, realizes the narrow limit effect of model, has improved the flexibility ratio of pleasing to the eye degree and design complete machine.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 these drawings without inventive exercise.
FIG. 1 is a general exploded view of a first embodiment of a high brightness modular panel of the present application;
FIG. 2 is an enlarged partial cross-sectional view of portion A of a first embodiment of a modular screen of the present application;
FIG. 3 is an exploded view of the bezel of a first embodiment of the highlight module screen of the present application;
FIG. 4 is a schematic structural diagram of a frame of a first embodiment of a high brightness module screen of the present application;
FIG. 5 is a schematic view of a first embodiment of a connector structure for a high brightness modular screen of the present application;
FIG. 6 is a schematic view of the overall back side structure of a first embodiment of a high brightness modular screen of the present application;
FIG. 7 is a schematic diagram of the overall structure of a second embodiment of the high brightness module screen of the present application;
FIG. 8 is an enlarged partial cross-sectional view of portion B of a second embodiment of the high brightness module screen of the present application.
The reference numerals and names in the figures are as follows:
the module mounting pool 100, the light-emitting substrate 200, the light box back plate 110, the frame 120, the liquid crystal glass 300, the LED lamp bead 210, the optical plate 400, the optical diaphragm 500, the control circuit 600, the light mixing space 700, the diffuse reflection film 710, the inclined plane 121, the frame 130, the connector 140, the mounting cavity 131, the fixing plate 132, the U-shaped groove 133, the first threaded hole 134, the connection end 141, the second threaded hole 142, the third threaded hole 143, the middle plate 150, and the fourth threaded hole 151.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the drawings, specific embodiments of the present application will be described in detail, referring to fig. 1, 2 and 6, a high brightness module screen includes a module installation pool 100, where the module installation pool 100 includes a light box back plate 110 and a frame 120, a liquid crystal glass 300 is installed in the frame 120, a plurality of groups of light emitting substrates 200 are arranged on the light box back plate 110, a plurality of LED beads 210 are installed on the light emitting substrates 200, an optical plate 400 and an optical film 500 are disposed between the light emitting substrates 200 and the liquid crystal glass 300, where the optical plate is a diffusion plate, the optical film 500 may be a diffusion film or a prism film, a control circuit 600 is further installed on the light box back plate 110, the control circuit 600 drives and controls the LED beads 210 on each light emitting substrate 200, when the control circuit 600 drives the LED beads 210 to start, light on the LED beads 210 irradiates the diffusion plate, and after atomization and diffusion of the LED beads are performed by the diffusion plate, point light sources emitted by the LED beads 210 are diffused into a surface light source, and after secondary diffusion or reflection enhancement of the optical film 500 is performed, the liquid crystal glass beads 300 is finally projected.
A light mixing space 700 is formed among the frame 120, the diffusion plate and the light emitting substrate 200, and the diffuse reflection film 710 is installed on the inclined surface 121 of the frame 120 and the light emitting substrate 200 in the light mixing space 700, so that after the LED lamp beads 210 are started, the inclined surface 121 of the frame 120 is irradiated by the light of the LED lamp beads 210, and is also reflected and emitted with the help of the diffuse reflection film 710, and meanwhile, due to the diffuse reflection film 710, the light emitted by reflection is more dispersed, part of the light is reflected to the diffusion plate, and is projected to the liquid crystal glass 300 through the optical film 500 to improve the brightness, and the other part of the light is reflected to the light emitting substrate 200, and due to the diffuse reflection film 710 also installed on the light emitting substrate 200, the reflected light is reflected for a second time through the diffuse reflection film 710 on the light emitting substrate 200, and is projected to the liquid crystal glass 300 through the diffusion plate and the optical film 500, so that the brightness of the liquid crystal glass 300 is further improved, and the recovery and utilization of the light are also enhanced in the limited light mixing space 700 while the brightness is improved, the light loss is reduced and the light efficiency is increased.
In the above embodiment, since the LED lamp beads 210 form a lamp shadow phenomenon on the diffusion plate when they emit light, when repeated experiments are performed to obtain a distance P = OD/tan θ between the LED lamp beads 210 on the light-emitting substrate 200, the best lamp shadow reduction effect is achieved on the diffusion plate, where OD is a vertical distance between the light-emitting substrate 200 and the diffusion plate, and θ is an included angle between a maximum light-emitting angle of the LED lamp beads 210 and the light-emitting substrate 200, for example, the vertical distance OD between the light-emitting substrate 200 and the diffusion plate is 1cm, and the maximum light-emitting angle of the LED lamp beads 210 is 120 degrees, then an included angle between the maximum light-emitting angle of the LED lamp beads 210 and the light-emitting substrate 200 is (180-120)/2 =30 degrees, which is obtained by substituting P = OD/tan θ, and the distance P between the LED lamp beads 210 is about 1.73cm, compared to the conventional method of reducing the lamp shadow phenomenon by adding an optical film or disposing a lens on the LED lamp beads 210, the distance between the LED lamp beads 210 set by the above formula can save the lamp shadow phenomenon and reduce the production cost.
In the above embodiment, as shown in fig. 3-5, the frame 120 includes four elongated frame bodies 130 and L-shaped connecting members 140 for connecting the frame bodies 130, the frame body 130 includes a hollow stepped mounting cavity 131, fixing plates 132 extend outwards from the bottom surface of the mounting cavity 131, U-shaped grooves 133 are further installed on the sides of the mounting cavity 131, the U-shaped grooves 133 are used for protecting the sides of the entire frame body 130, so as to effectively prevent the frame 120 from being damaged due to collision, opposite first threaded holes 134 are opened on the sides of the U-shaped grooves 133 and the mounting cavity 131, the U-shaped grooves 133 and the mounting cavity 131 are fixedly installed by screws through the first threaded holes 134, hollow stepped connecting ends 141 are provided on both ends of the connecting members 140, and the shape of the connecting ends 141 can match the shape of the mounting cavity 131, the connecting end 141 can be tightly inserted into the mounting cavity 131, the top surfaces and the bottom surfaces of the mounting cavity 131 and the connecting end 141 are provided with second threaded holes 142, the connecting piece 140 is fixed by screws through the second threaded holes 142 after being inserted into the mounting cavity 131 of the frame body 130, the fixing plate 132 and the light box back plate 110 are provided with third threaded holes 143 for fixing the light box back plate 110 on the frame 120 through screws, and as can be seen from the above embodiment, the existing module mounting pool 100 is formed by stamping through a die or by numerical control cutting and bending.
Preferably, as shown in fig. 2 and 6, an aluminum middle plate 150 is disposed between the light box back plate 110 and the light emitting substrate 200, and corresponding fourth threaded holes 151151 are disposed on the light box back plate 110 and the aluminum middle plate 150 for fixedly connecting the light box back plate 110 and the aluminum middle plate 150 by using screws, where the middle plate 150 can further enhance the hardness of the whole light box back plate 110, and the aluminum middle plate 150 can better conduct heat generated by the light emitting substrate 200 to the light box back plate 110, thereby achieving better heat dissipation.
The utility model provides still another embodiment as follows, as shown in fig. 7 and 8, including module installation pond 100, module installation pond 100 includes lamp house backplate 110 and frame 120, install liquid crystal glazing 300 in the frame 120, lay back a plurality of group luminescent substrate 200 on the frame 120 luminescent substrate 200 installs and arranges a plurality of LED lamp pearl 210 lamp house backplate 110 upper berth is equipped with optical plate 400, here the optical plate be the light guide plate, LED lamp pearl 210 is just right the side of light guide plate be equipped with optical diaphragm 500 between light guide plate and the liquid crystal glazing 300, optical diaphragm 500 can be diffusion barrier or prism membrane still install control circuit 600 on the lamp house backplate 110, control circuit 600 drives and controls respectively LED lamp pearl 210 on every luminescent substrate 200 works as after control circuit 600 drives LED lamp pearl 210 and starts, works as after control circuit 600 drives LED lamp pearl 210 starts, light guide plate on the LED lamp pearl 210 shines, after the samming of light guide plate, makes whole light guide plate luminous, after secondary diffusion or reflection enhancement through optical diaphragm 500, finally throws the light that compound glass glazing 300 required at the liquid crystal glazing 300.
On the basis of the above embodiment, the diffuse reflection film 710 may also be spread between the light guide plate and the light box back plate 110, and after the LED lamp beads 210 are started and the light guide plate is lighted, the light emitted toward the light box back plate 110 may also be reflected back by the diffuse reflection film 710, so that the brightness of the light guide plate is further improved.
Further, in the embodiment, since the LED lamp beads 210 form a lamp shadow on the diffusion plate when emitting light, repeated experiments are performed to obtain the distance P between the LED lamp beads 210 on the light-emitting substrate 200 and the distance a between the light-emitting substrate 200 and the light guide plate, where the ratio of the distance P to the distance a is a/P ≧ 1, for example, 1cm between the light-emitting substrate 200 and the light guide plate, so that the formation of the lamp shadow on the light guide plate can be effectively reduced or even avoided as long as the distance between the LED lamp beads 210 is less than 1 cm.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (9)
1. High brightness module screen, its characterized in that includes module installation pond (100) install a plurality of groups luminous substrate (200) in module installation pond (100), module installation pond (100) include lamp house backplate (110) and step-like frame (120) install liquid crystal glazing (300) in frame (120) it has a plurality of LED lamp pearl (210) to arrange according to predetermineeing the interval on luminous substrate (200) be equipped with optical plate (400) and optical diaphragm (500) between luminous substrate (200) and liquid crystal glazing (300) still install on lamp house backplate (110) and be used for drive and control circuit (600) of LED lamp pearl (210) on every luminous substrate (200), form mixed light space (700) between frame (120), luminous substrate (200) and optical plate lamp pearl (400), laid diffuse reflection membrane (710) that are used for reflecting LED (210) light in mixed light space (700).
2. A high brightness modular screen according to claim 1, wherein the light emitting substrate (200) is laid on a light box back plate (110), the optical plate (400) is a diffuser plate, the optical film sheet (500) is a diffuser film, and the diffuse reflection film (710) is laid on the inclined surface (121) of the bezel (120) and the surface of the light emitting substrate (200).
3. A high brightness modular screen as claimed in claim 2, wherein the spacing between the LED beads (210) satisfies the following formula: p = OD/tan theta, wherein P is the distance between the LED lamp beads (210), OD is the vertical distance from the light-emitting substrate (200) to the diffusion plate, and theta is the included angle between the maximum light-emitting angle of the LED lamp beads (210) and the light-emitting substrate (200).
4. The high-brightness modular screen of claim 3, wherein the frame (120) comprises four elongated frames (130) and L-shaped connecting members (140) for connecting the frames (130), the frame (130) comprises a hollow stepped mounting cavity (131), a fixing plate (132) extends outwards from the bottom surface of the mounting cavity (131), U-shaped grooves (133) are further mounted on the side edges of the mounting cavity (131), and corresponding first threaded holes (134) are formed in the side edges of the U-shaped grooves (133) and the mounting cavity (131).
5. The high brightness modular screen according to claim 4, wherein the connecting member (140) has hollow step-shaped connecting ends (141) at both ends thereof, the connecting ends (141) are shaped to match with the shape of the mounting cavity (131) so that the connecting ends (141) can be tightly inserted into the mounting cavity (131), the mounting cavity (131) and the connecting ends (141) have corresponding second threaded holes (142) at top and bottom surfaces thereof, and the fixing plate (132) and the light box back plate (110) have corresponding third threaded holes (143).
6. The high-brightness modular screen as claimed in claim 5, wherein an aluminum middle plate (150) is disposed between the light box back plate (110) and the light emitting substrate (200), and corresponding fourth screw holes (151) are opened on the light box back plate (110) and the aluminum middle plate (150).
7. The screen of claim 1, wherein the light-emitting substrate (200) is disposed on the frame (120), the optical plate (400) is a light guide plate, the optical film (500) is a prism film, the LED beads (210) are opposite to the side of the light guide plate, and the diffuse reflection film (710) is disposed between the light-emitting substrate (200) and the light guide plate.
8. A high brightness modular screen according to claim 7, characterized in that a diffuse reflection film (710) is laid between the light guide plate and the light box back plate (110).
9. A high brightness modular screen as recited in claim 8, characterized in that the spacing between the individual LED beads (210) satisfies the following formula: A/P ≧ 1, wherein P is the interval between each LED lamp bead (210), and A is the distance between the light-emitting substrate (200) and the light guide plate.
Priority Applications (1)
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CN202222403425.XU CN218037598U (en) | 2022-09-09 | 2022-09-09 | High brightness module screen |
Applications Claiming Priority (1)
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CN202222403425.XU CN218037598U (en) | 2022-09-09 | 2022-09-09 | High brightness module screen |
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CN218037598U true CN218037598U (en) | 2022-12-13 |
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CN202222403425.XU Active CN218037598U (en) | 2022-09-09 | 2022-09-09 | High brightness module screen |
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- 2022-09-09 CN CN202222403425.XU patent/CN218037598U/en active Active
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