CN109102762B - LED composite lamp, LED display module and LED display screen - Google Patents
LED composite lamp, LED display module and LED display screen Download PDFInfo
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- CN109102762B CN109102762B CN201811119462.XA CN201811119462A CN109102762B CN 109102762 B CN109102762 B CN 109102762B CN 201811119462 A CN201811119462 A CN 201811119462A CN 109102762 B CN109102762 B CN 109102762B
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- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 238000003491 array Methods 0.000 claims abstract description 4
- 239000012790 adhesive layer Substances 0.000 claims description 20
- 239000011324 bead Substances 0.000 claims description 12
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 2
- 238000005538 encapsulation Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 12
- 239000000758 substrate Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Led Device Packages (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The invention relates to an LED composite lamp, an LED display module and an LED display screen, wherein the LED composite lamp comprises: a light emitting device; and the lamp body comprises a first end face and a second end face which are oppositely arranged, a plurality of light emitting device arrays are arranged on the first end face, and a perforation is arranged on the lamp body and penetrates through the first end face and the second end face. The LED display module comprises the LED composite lamp. The LED display screen comprises the LED display module. Above-mentioned LED composite lamp, LED display module assembly and LED display screen are through setting up the perforation on the lamp body to the sound of the second terminal surface one side of lamp body can be transmitted to the first terminal surface one side of lamp body through the perforation, from this, can solve the LED display screen and be applied to the cinema, because the sealed concatenation of LED display screen leads to the audio problem.
Description
Technical Field
The invention relates to the field of LED display, in particular to an LED composite lamp, an LED display module and an LED display screen.
Background
The LED display screen can easily realize high resolution, and is applied to cinema, and is expected to become a development trend of future cinema. The oversized LED display screen is usually formed by assembling a plurality of boxes, the boxes are tightly spliced, and when the sound is placed on the back of the display screen, the sound cannot penetrate, so that the sound effect of the cinema is affected.
Disclosure of Invention
Based on this, it is necessary to provide an LED composite lamp, an LED display module and an LED display screen, which are directed against the problem that when the LED display screen is applied to a cinema, sound cannot penetrate the display screen, thereby affecting the sound effect of the cinema.
The first aspect of the present invention provides an LED composite lamp, comprising:
a light emitting device; and
The lamp body comprises a first end face and a second end face which are oppositely arranged, a plurality of light emitting device arrays are arranged on the first end face, a perforation is formed in the lamp body, and the perforation penetrates through the first end face and the second end face.
In one embodiment, the cross-sectional area of the end of the perforation proximate to the first end face is greater than the cross-sectional area of the end proximate to the second end face, such that the perforation is flared.
In one embodiment, an end of the through hole near the first end face is in an elongated shape or a cross shape.
In one embodiment, one end of the through hole, which is close to the second end face, is round, and is connected with one end of the through hole, which is close to the first end face, through a curved surface in a smooth way; or alternatively
One end of the through hole, which is close to the second end face, is arranged in a cross shape or a straight line shape.
In one embodiment, the light emitting device further comprises an encapsulation adhesive layer, the encapsulation adhesive layer is arranged on the first end face of the lamp panel, and the light emitting device is encapsulated on the first end face.
In one embodiment, the area of the encapsulation glue layer near the perforation is at least partially removed, so that a gap between one sides of the encapsulation glue layers, which are opposite to the lamp panel, corresponding to two adjacent light emitting devices is larger than the width of the perforation.
According to the LED composite lamp provided by the embodiment of the invention, the through holes are formed in the lamp body, so that sound on the side of the second end face of the lamp body can be transmitted to the side of the first end face of the lamp body through the through holes, and the problem of sound effect caused by sealing and splicing of the LED display screen when the LED display screen is applied to a cinema can be solved.
The invention provides an LED display module, which comprises a bottom shell, a lamp panel and LED lamp beads, wherein the LED lamp beads are fixed on the lamp panel, the lamp panel is fixed on the bottom shell, the LED lamp beads are any one of the LED composite lamps, through holes are formed in the lamp panel corresponding to the through holes of the LED composite lamps, and the through holes are communicated with the through holes.
In one embodiment, the LED lamp bead includes a pin, and the pin is disposed around the through hole on the second end surface of the lamp body of the LED lamp bead;
the pin passes through the through hole and is connected with the lamp panel in a clamping way, a plurality of interfaces are arranged on the lamp panel around the through hole, and the pin is conducted with the interfaces when connected with the lamp panel in a clamping way, so that electric connection is realized.
In one embodiment, a groove is concavely formed on the inner wall of the through hole, and the pin is clamped in the groove.
According to the LED display module, the through holes are formed in the lamp body, so that sound on the side of the second end face of the lamp body can be transmitted to the side of the first end face of the lamp body through the through holes, and the LED display module is applied to the LED display screen, so that the problem of sound effect caused by sealing and splicing of the LED display screen when the LED display screen is applied to a cinema can be solved.
The third aspect of the invention provides an LED display screen, which comprises a bracket and an LED display module, wherein the LED display module is fixed on the bracket, and the LED display module is any one of the LED display modules.
According to the LED display screen provided by the embodiment of the invention, the through holes are formed in the lamp body, so that sound on the side of the second end face of the lamp body can be transmitted to the side of the first end face of the lamp body through the through holes, and the problem of sound effect caused by sealing and splicing of the LED display screen when the LED display screen is applied to a cinema can be solved.
Drawings
FIG. 1 is a schematic diagram of an LED composite lamp according to an embodiment of the invention;
fig. 2 is a schematic view of a lamp body of an LED composite lamp according to an embodiment of the present invention;
FIG. 3 is a top view of a second end face of a lamp body of an LED composite lamp according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of an LED composite lamp according to another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an LED composite lamp according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of an LED display module according to an embodiment of the invention.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a schematic structural diagram of an LED composite lamp 10 according to an embodiment of the present invention is shown, where the LED composite lamp 10 is mounted on a lamp panel and applied to an LED display screen of a cinema, so that the LED display screen has a better sound transmission effect.
As shown in fig. 1, the LED composite lamp 10 may include a lamp body 110 and light emitting devices 120, where the light emitting devices 120 are plural, and the plural light emitting devices 120 are disposed on the lamp body 110 at intervals and are arranged in an array.
The lamp body 110 may have a first end surface 110a and a second end surface 110b disposed opposite to each other, the first end surface 110a being an end surface away from the lamp panel when the LED composite lamp 10 is mounted on the lamp panel, and the second end surface 110b being an end surface close to the lamp panel. The light emitting devices 120 may be disposed on the first end surface 110a and arranged in an array on the first end surface 110 a. For example, when the light emitting devices 120 are provided with four, the light emitting devices 120 may be arranged in a 2×2 array at the first end face 110 a; when the light emitting devices 120 are provided in 6, they may be arranged in a 2*3 array or a 3*2 array. It is understood that the light emitting devices 120 may be arranged in other arrays, not limited to the arrangement exemplified in the foregoing embodiments.
The lamp body 110 may be provided with a through hole 10a, and the through hole 10a penetrates through the first end surface 110a and the second end surface 110b of the lamp body 110, whereby sound can be transmitted from the first end surface 110a of the lamp body 110 to the second end surface 110b side through the through hole 10a. For example, when the light emitting devices 120 are arranged in a 2×2 array at the first end face 110a, the perforation 10a may be disposed at a middle position of the four light emitting devices 120.
One or more through holes 10a may be provided, and in particular, the number of the light emitting devices 120 may be adapted, for example, one through hole 10a may be provided at a central position of each four light emitting devices 120. For example, the light emitting devices 120 are arranged in the form of 2*3 array, and the number of the perforations 10a may be set to two.
In some embodiments, the light emitting device 120 may be disposed directly on a surface of the first end face 110 a. For example, the light emitting device 120 may be directly mounted on the surface of the first end face 110a in a surface mount manner.
The lamp body 110 may be provided with a lamp cup corresponding to the light emitting device 120, and the light emitting device 120 is provided corresponding to the lamp cup, so that the light emitting device 120 may realize COB type packaging. For example, the first end surface 110a may be sunk in a direction approaching the second end surface 110b to form a lamp cup, and the light emitting device 120 may be disposed at the bottom of the lamp cup. The shape of the lamp cup can be a cylinder or a polygonal column, and of course, the lamp cup can also be other shapes, and the lamp cup can be specific according to the product requirement.
Referring to fig. 2, in one or more embodiments, the lamp body 110 may include a first substrate 112 and a second substrate 114, the first substrate 112 and the second substrate 114 are stacked and fixed to each other, a through hole 112a is disposed on the first substrate 112, and the second substrate 114 closes the through hole 112a from one end of the through hole 112a, so that the through hole 112a may have a function of a lamp cup when the first substrate 112 and the second substrate 114 are stacked. The light emitting device 120 may be disposed on the second substrate 114 and accommodated and fixed in the through hole 112 a. By providing the first substrate 112 and the second substrate 114, the fixing of the light emitting device 120 on the lamp body 110 can be facilitated, so that the processing time can be shortened and the processing efficiency can be improved.
The light emitting device 120 may include at least one of a red light chip (R chip), a green light chip (G chip), and a blue light chip (B chip). In some embodiments, the light emitting device 120 includes a red light chip (R chip), a green light chip (G chip), and a blue light chip (B chip), and thus the LED composite lamp 10 may be mounted on a lamp panel to form a full color display.
With continued reference to fig. 3, the led composite lamp 10 may further include a plurality of pins 130, where the pins 130 may be disposed on the second end surface 110b, and the light emitting device 120 is electrically connected to the circuit board through the pins 130. Each light emitting device 120 is connected to two different pins 130, so that the light emitting devices 120 can be connected into a circuit to realize conduction, for example, the pins 130 are arranged corresponding to the light emitting devices 120, and two pins 130 are arranged corresponding to each light emitting device 120.
The pins 130 may be shared among the plurality of light emitting devices 120 to reduce the number of pins 130. For example, anodes of the light emitting devices 120 in the same row may be connected to the same pin 130, and cathodes of the light emitting devices 120 in the same column may be connected to the same pin 130. Thus, by sharing the anode pins 130 per row of light emitting devices 120, each column of light emitting devices 120 shares the cathode pins 130, such that the number of pins 130 is greatly reduced.
When the light emitting device 120 includes a red light chip, a green light chip and a blue light chip, the anodes of the red light chips in the same row of light emitting regions can share the same anode pin 130, the green light chip and the blue light chip share another anode pin 130, and the cathodes of the red light chip, the green light chip and the blue light chip in the same column share a cathode pin 130 because the voltage required by the red light chip is lower. Through the pin 130 connection mode, the quantity of the pins 130 can be reduced, independent power supply can be carried out for the red light chip, and unified power supply can be carried out for the green light chip and the blue light chip, so that lower voltage can be provided for the red light chip, the power consumption of the red light chip is reduced, and the power consumption reduction treatment of the light emitting device 120 is further realized.
In one or more embodiments, the pins 130 may be disposed around the through holes 10a at the second end surface 110b of the lamp body 110, and the pins 130 may be insulated from each other. For example, a plurality of pins 130 may be disposed around the perforation 10a at intervals, or an insulating material may be disposed between the pins 130 and an insulating connection may be achieved through the insulating material.
With continued reference to fig. 4, the led composite lamp 10 may further include a light shielding rail 140, where the light shielding rail 140 may be disposed on the first end 110a of the lamp body 110, and each light shielding rail 140 corresponds to one of the light emitting devices 120 and is disposed around the light emitting device 120. By providing the light shielding rail 140, a light-crosstalk phenomenon between adjacent light emitting devices 120 can be avoided.
The light shielding rails 140 may be provided with grooves 10b therebetween, and the perforations 10a may be provided corresponding to the grooves 10 b. In some embodiments, the cross-sectional area of the end of the perforation 10a proximate to the first end face 110a is greater than the cross-sectional area of the end proximate to the second end face 110 b. For example, the end of the perforation 10a near the second end face 110b may be circular, and the end near the first end face 110a may be provided with an irregular shape, for example, may be elongated or cross-shaped in accordance with the shape of the groove 10 b. For example, when the perforation 10a is disposed between the four light emitting devices 120, one end of the perforation 10a near the first end surface 110a may be disposed in a cross shape and connected with one end of the perforation 10a near the second end surface 110b smoothly by a curved surface, so that the perforation 10a is approximately horn-shaped, and a certain amplifying effect can be exerted on the sound. Of course, the end of the perforation 10a near the second end face 110b may be disposed in a cross shape or a straight shape. It will be appreciated by those skilled in the art that the perforation 10a may be provided in a straight or cross shape when the light shielding rail 140 is not provided.
With continued reference to fig. 5, in order to achieve protection of the light emitting device 120 and obtain better light efficiency, the LED composite lamp 10 may further include an encapsulation adhesive layer 150, where the encapsulation adhesive layer 150 is disposed on the first end surface 110a of the lamp panel, and encapsulates the light emitting device 120 and the first end surface 110a of the lamp panel, so as to adjust the light emitting effect of the light emitting device 120.
When the light emitting device 120 is encapsulated with the encapsulation adhesive layer 150, the encapsulation adhesive layer 150 is used to raise the thickness of the LED composite lamp 10, so that the perforation 10a can be configured into a horn shape by using the encapsulation adhesive layer 150, for example, the perforation 10a on the lamp body can be a circular hole or a cross-shaped hole, and the area of the encapsulation adhesive layer 150 near the perforation 10a is at least partially removed, so that the gap between the sides of the encapsulation adhesive layer 150 of two adjacent light emitting devices 120 facing away from the lamp panel is larger than the width of the perforation 10a, and forms a horn with the perforation 10a component. The removal of the encapsulation layer 150 may be performed by etching, dicing, laser, etc., but other methods are also possible. By removing part of the encapsulation adhesive layer 150, the sound coming out of the perforation 10a is amplified, and the sound effect can be further improved. It will be appreciated that the area of the side of the encapsulation adhesive layer 150 away from the perforation 10a is larger than the area of the side of the encapsulation adhesive layer 150 close to the perforation 10a, and the side of the encapsulation adhesive layer 150 away from the perforation 10a and the side of the encapsulation adhesive layer 150 close to the perforation 10a are in smooth curved transition, the side of the encapsulation adhesive layer 150 close to the perforation 10a can be adapted to the end of the perforation 10a close to the first end surface, so that a horn-shaped sound-transmitting hole is formed by using the encapsulation adhesive layer 150 and the perforation 10a.
According to the LED composite lamp 10 disclosed by the embodiment of the invention, the through holes 10a are formed in the lamp body 110, so that sound on the second end face 110b side of the lamp body 110 can be transmitted to the first end face 110a side of the lamp body 110 through the through holes 10a, and the problem of sound effect caused by sealing and splicing of the LED display screen when the LED display screen is applied to a cinema can be solved.
Referring to fig. 6, an explosion structure diagram of an LED display module 20 according to an embodiment of the present invention is shown, the LED display module 20 includes a bottom case 210, a light plate 220 and LED light beads, the LED light beads are fixed on the light plate 220, the light plate 220 is fixed on the bottom case 210, the LED light beads may be the LED composite lamp 10 according to any one of the embodiments, through holes 220a are provided on the light plate 220 corresponding to the through holes of the LED composite lamp, and the through holes 220a are communicated with the through holes of the LED composite lamp to jointly complete the sound conduction function.
In one or more embodiments, the pins of the LED light beads are clamped into the through holes 220a of the light board 220, and when clamped, the pins are electrically connected with the light board 220. For example, a card slot (not shown) may be disposed on the pin, the pin passes through the through hole 220a and is clamped with the lamp panel 220, a plurality of interfaces are disposed on the lamp panel 220 around the through hole 220a, and when the pin is clamped with the lamp panel 220, the pin is synchronously conducted with the interfaces of the lamp panel 220, so as to realize electrical connection. In order to avoid the pins from blocking the through holes and affecting sound transmission, and facilitate the arrangement of the interfaces on the lamp panel 220, the inner wall of the through hole 220a may be concavely formed with a groove (not shown), and the pins are clamped in the groove. By means of the clamping connection, the LED lamp beads can be fixed to the lamp panel 220 in a mode of welding.
According to the LED display module 20 provided by the embodiment of the invention, through arranging the perforation on the lamp body, sound on the second end face side of the lamp body can be transmitted to the first end face side of the lamp body through the perforation, and the LED display module 20 is applied to the LED display screen, so that the problem of sound effect caused by sealing and splicing of the LED display screen when the LED display screen is applied to a cinema can be solved.
The embodiment of the invention also provides an LED display screen, which comprises a bracket and an LED display module, wherein the LED display module is fixed on the bracket, and the LED display module is the LED display module of any embodiment.
According to the LED display screen provided by the embodiment of the invention, the through holes are formed in the lamp body, so that sound on the side of the second end face of the lamp body can be transmitted to the side of the first end face of the lamp body through the through holes, and the problem of sound effect caused by sealing and splicing of the LED display screen when the LED display screen is applied to a cinema can be solved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (7)
1. An LED composite lamp, comprising:
a light emitting device; and
The lamp body comprises a first end face and a second end face which are oppositely arranged, a plurality of light emitting device arrays are arranged on the first end face, and through holes are formed in the lamp body and penetrate through the first end face and the second end face; the cross-sectional area of one end of the perforation close to the first end face is larger than that of one end close to the second end face, so that the perforation is horn-shaped;
the light-emitting device comprises a lamp panel, a light-emitting device, a packaging adhesive layer, a first light-emitting diode and a second light-emitting diode, wherein the light-emitting device is arranged on the first end face of the lamp panel; and the area, close to the perforation, of the packaging adhesive layer is at least partially cleared, so that the gap between the sides, close to the perforation, of the packaging adhesive layers corresponding to the two adjacent light emitting devices, and the sides, close to the perforation, of the lamp panel is larger than the width of the perforation, and the packaging adhesive layers and the perforation are constructed to form a horn-shaped sound transmission hole.
2. The LED composite light of claim 1 wherein an end of the perforation proximate the first end face is elongated or cross-shaped.
3. The LED composite light of claim 2 wherein the end of the perforation proximate to the second end face is rounded and is smoothly connected to the end of the perforation proximate to the first end face by a curved surface; or alternatively
One end of the through hole, which is close to the second end face, is arranged in a cross shape or a straight line shape.
4. The utility model provides a LED display module assembly, includes drain pan, lamp plate and LED lamp pearl, and the LED lamp pearl is fixed in on the lamp plate, and the lamp plate is fixed in on the drain pan, its characterized in that, the LED lamp pearl is the compound lamp of arbitrary claim 1-3 of LED, correspond on the lamp plate the perforation of the compound lamp of LED is provided with the through-hole, the through-hole with perforation intercommunication.
5. The LED display module of claim 4, wherein the LED light beads comprise pins disposed around the perforations at the second end face of the body of the LED light beads;
the pin passes through the through hole and is connected with the lamp panel in a clamping way, a plurality of interfaces are arranged on the lamp panel around the through hole, and the pin is conducted with the interfaces when connected with the lamp panel in a clamping way, so that electric connection is realized.
6. The LED display module of claim 5, wherein the inner wall of the through hole is concavely formed with a groove, and the pin is clamped in the groove.
7. An LED display screen comprising a bracket and an LED display module, the LED module being fixed to the bracket, characterized in that the LED display module is an LED display module according to any one of claims 4-6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811119462.XA CN109102762B (en) | 2018-09-25 | 2018-09-25 | LED composite lamp, LED display module and LED display screen |
| PCT/CN2019/075702 WO2020062765A1 (en) | 2018-09-25 | 2019-02-21 | Led combined lamp, led display module and led display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811119462.XA CN109102762B (en) | 2018-09-25 | 2018-09-25 | LED composite lamp, LED display module and LED display screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109102762A CN109102762A (en) | 2018-12-28 |
| CN109102762B true CN109102762B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811119462.XA Active CN109102762B (en) | 2018-09-25 | 2018-09-25 | LED composite lamp, LED display module and LED display screen |
Country Status (2)
| Country | Link |
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| CN (1) | CN109102762B (en) |
| WO (1) | WO2020062765A1 (en) |
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| CN109118969B (en) * | 2018-09-25 | 2024-04-02 | 深圳市奥拓电子股份有限公司 | LED display module and LED display screen |
| CN109102762B (en) * | 2018-09-25 | 2024-03-29 | 深圳市奥拓电子股份有限公司 | LED composite lamp, LED display module and LED display screen |
| CN109712540A (en) * | 2019-03-07 | 2019-05-03 | 东莞阿尔泰显示技术有限公司 | A kind of LED lamp panel applied to movie theatre |
| CN115460487A (en) * | 2022-08-29 | 2022-12-09 | 中影巴可（北京）电子有限公司 | Sound system of LED display screen |
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| CN208938551U (en) * | 2018-09-25 | 2019-06-04 | 深圳市奥拓电子股份有限公司 | LED display module and LED display |
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| CN109102762A (en) | 2018-12-28 |
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