CN110748815A - LED light bar and advertisement screen - Google Patents
LED light bar and advertisement screen Download PDFInfo
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- CN110748815A CN110748815A CN201810738084.7A CN201810738084A CN110748815A CN 110748815 A CN110748815 A CN 110748815A CN 201810738084 A CN201810738084 A CN 201810738084A CN 110748815 A CN110748815 A CN 110748815A
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- light
- led
- led chip
- emitting diode
- chip
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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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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- 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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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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)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Led Device Packages (AREA)
Abstract
Provided are an LED light bar and an advertisement screen. The LED light bar comprises a light-transmitting substrate and a plurality of LED light-emitting units. The light-transmitting substrate is provided with a plurality of through holes, one side of the light-transmitting substrate is provided with a control circuit and a power supply circuit, the plurality of LED light-emitting units are arranged on one side of the light-transmitting substrate, which is provided with the control circuit and the power supply circuit, and the plurality of LED light-emitting units are electrically connected with the control circuit and the power supply circuit. The LED light-emitting units are internally provided with three LED chips and a controller, light beams emitted by the three LED chips can be mutually mixed into a mixed light beam, and the controller can control the color temperature and the brightness of the mixed light beam.
Description
Technical Field
The invention relates to a light-emitting lamp bar and an advertising screen, in particular to an LED light-emitting lamp bar and an advertising screen with the LED light-emitting lamp bar.
Background
The light bar for the existing advertising billboard has a complex structure of related electronic circuits in order to achieve the effect of colorful change, and when the light bar is fixedly arranged on transparent glass, the electronic circuits can be directly watched by consumers, so that the problem of poor visual effect of the advertising billboard is caused.
Disclosure of Invention
The invention mainly aims to provide an LED light-emitting lamp strip and an advertising screen, which are used for solving the problem that the visual effect of a user watching an advertising billboard is easily influenced due to the fact that the related electronic circuit of the existing lamp strip applied to the advertising billboard is complex.
In order to achieve the above object, the present invention provides an LED light bar, wherein the LED light bar comprises: a transparent substrate and a plurality of LED light-emitting units. The light-transmitting substrate comprises a plurality of through holes, the through holes are formed in the light-transmitting substrate at intervals, each through hole penetrates through the light-transmitting substrate, two opposite wide side faces of the light-transmitting substrate are respectively defined as a fixed face and an attaching face, the attaching face is provided with an attaching layer, one side, away from the attaching face, of the attaching layer is provided with a release component, the release component can be torn away, the attaching layer is exposed, the fixed face is provided with a power supply line and a control circuit, and the power supply line and the control circuit can be electrically connected with an external control device. A plurality of LED light emitting units fixed to the fixing surface of the light-transmitting substrate, each LED light emitting unit comprising: the light-tight package body, the four conductive pins, the first light-emitting diode chip, the second light-emitting diode chip, the third light-emitting diode chip, the controller and the light-pervious package body. A receiving groove is formed in a concave portion on one side of the light-tight package. One end of each conductive pin is positioned in the containing groove, the other end of each conductive pin is exposed out of the light-tight packaging body, the four conductive pins exposed out of the light-tight packaging body respectively comprise a fixing part, and each fixing part is arranged close to one side surface of the light-tight packaging body, which is concavely formed with the containing groove; two of the conductive pins are electrically connected with the power supply circuit, and the other two conductive pins are electrically connected with the control circuit. The first LED chip can emit light beams with wavelengths of 610-780 nm; the second LED chip can emit light beams with wavelengths of 500-570 nm; the third LED chip can emit light beams with the wavelength of 450-495 nm; the irradiation range of any one of the first light-emitting diode chip, the second light-emitting diode chip and the third light-emitting diode chip can be partially overlapped with the irradiation range of at least one of the rest light-emitting diode chips; the light beams emitted by the first light emitting diode chip, the second light emitting diode chip and the third light emitting diode chip can be mixed with each other to form a mixed light beam. The controller is electrically connected with the first light-emitting diode chip, the second light-emitting diode chip, the third light-emitting diode chip and the four conductive pins of the accommodating groove, the controller is electrically connected with the first light-emitting diode chip, the second light-emitting diode chip and the third light-emitting diode chip, and the controller can independently control the current and the voltage entering the first light-emitting diode chip, the second light-emitting diode chip or the third light-emitting diode chip so as to control the color temperature and the brightness of the mixed light beam. The light-transmitting packaging body is filled in the accommodating groove and correspondingly wraps the first light-emitting diode chip, the second light-emitting diode chip, the third light-emitting diode chip and the controller; the light-mixing light beam can be emitted outwards through a light-emitting surface of the light-transmitting packaging body. When the LED light-emitting units are fixedly arranged on the fixed surface, the light emergent surface is opposite to the through holes, and light beams emitted by the LED light-emitting units can be emitted to one side far away from the binding surface of the light-transmitting base material through the corresponding through holes. The external control device can be electrically connected with the controllers of the LED light-emitting units through the power supply circuit and the control circuit so as to control the color temperature and the brightness of light beams emitted by the LED light-emitting units.
Preferably, the light-transmitting substrate is in a long strip shape, the power supply line includes a ground main line and a power main line, the ground main line and the power main line extend along the length direction of the light-transmitting substrate and are disposed on the fixing surface, the ground main line and the power main line are correspondingly disposed on two opposite sides of the light-transmitting substrate, the ground main line extends towards the power main line to form a plurality of ground branch lines, and the power main line extends towards the ground main line to form a plurality of power branch lines; the control circuit comprises a plurality of serial connection lines, each serial connection line is positioned between the adjacent grounding branch line and the adjacent power branch line, and the plurality of serial connection lines are arranged at intervals; the four conductive pins of each LED light-emitting unit are correspondingly and electrically connected with one of the grounding branch lines, one of the power branch lines and two mutually adjacent serial connection lines; the power main line, the grounding main line and one of the series connection lines can be electrically connected with the external control device.
Preferably, the two series lines connected to each of the LED lighting units can be used as a frequency data input terminal and a frequency data output terminal; the light-tight packaging body and the four conductive pins of each LED light-emitting unit are packaged and molded in a plastic packaging mode with lead wire sheet type carrier packaging.
Preferably, the light beam emitted by the first led chip within the half-value angle overlaps with the light beam emitted by the second led chip within the half-value angle and the light beam emitted by the third led chip within the half-value angle; the light beams emitted by the second light emitting diode chip and positioned in the half-value angle are mutually overlapped with the light beams emitted by the third light emitting diode chip and positioned in the half-value angle.
Preferably, the light beam emitted by the first led chip, the light beam emitted by the second led chip, and the light beam emitted by the third led chip within the half-value angle can directly pass through the light-transmitting package and be emitted to the outside.
In order to achieve the above object, the present invention also provides an advertisement screen comprising: the LED lamp comprises a light-transmitting panel, a control device and a plurality of LED light-emitting lamp bars. Each LED light bar comprises: a transparent substrate and a plurality of LED light-emitting units. The light-transmitting substrate comprises a plurality of through holes, the through holes are formed in the light-transmitting substrate at intervals, each through hole penetrates through the light-transmitting substrate, two opposite wide side surfaces of the light-transmitting substrate are respectively defined as a fixing surface and an attaching surface, the attaching surface is provided with an adhesive layer, and each LED light-emitting lamp strip is fixedly arranged on one side of the light-transmitting panel through the adhesive layer in an attaching mode; the fixing surface is provided with a power supply circuit and a control circuit, and the power supply circuit and the control circuit can be electrically connected with the control device. A plurality of LED luminescence units are fixed in the stationary plane of printing opacity substrate, and each LED luminescence unit contains: the light-tight package body, the four conductive pins, the first light-emitting diode chip, the second light-emitting diode chip, the third light-emitting diode chip, the controller and the light-pervious package body. A receiving groove is formed in a concave portion on one side of the light-tight package. One end of each conductive pin is positioned in the containing groove, the other end of each conductive pin is exposed out of the light-tight packaging body, the four conductive pins exposed out of the light-tight packaging body respectively comprise a fixing part, and each fixing part is arranged close to one side surface of the light-tight packaging body, which is concavely formed with the containing groove; two of the conductive pins are electrically connected with the power supply circuit, and the other two conductive pins are electrically connected with the control circuit. The first LED chip can emit light beams with wavelengths of 610-780 nm; the second LED chip can emit light beams with wavelengths of 500-570 nm; the third LED chip can emit light beams with the wavelength of 450-495 nm; the irradiation range of any one of the first light-emitting diode chip, the second light-emitting diode chip and the third light-emitting diode chip can be partially overlapped with the irradiation range of at least one of the rest light-emitting diode chips; the light beams emitted by the first light emitting diode chip, the second light emitting diode chip and the third light emitting diode chip can be mixed with each other to form a mixed light beam. The controller is electrically connected with the first light-emitting diode chip, the second light-emitting diode chip, the third light-emitting diode chip and the four conductive pins of the accommodating groove, the controller is electrically connected with the first light-emitting diode chip, the second light-emitting diode chip and the third light-emitting diode chip, and the controller can independently control the current and the voltage entering the first light-emitting diode chip, the second light-emitting diode chip or the third light-emitting diode chip so as to control the color temperature and the brightness of the mixed light beam. The light-transmitting packaging body is filled in the accommodating groove and correspondingly wraps the first light-emitting diode chip, the second light-emitting diode chip, the third light-emitting diode chip and the controller; the light-mixing light beam can be emitted outwards through a light-emitting surface of the light-transmitting packaging body. When the LED light-emitting units are fixedly arranged on the fixed surface, the light-emitting surface faces the through hole, and light beams emitted by the LED light-emitting units through the light-emitting surface can pass through the through hole of the light-transmitting substrate and the light-transmitting panel and are emitted out of the light-transmitting panel from the other side opposite to the side provided with the LED light-emitting lamp strip. The control device is electrically connected with the power supply circuit and the control circuit of each LED light-emitting lamp strip, can provide electric power required by each LED light-emitting lamp strip, and can control the color temperature and the brightness of light beams emitted by each LED light-emitting unit.
Preferably, the light-transmitting substrate is in a long strip shape, the power supply line includes a ground main line and a power main line, the ground main line and the power main line extend along the length direction of the light-transmitting substrate and are disposed on the fixing surface, the ground main line and the power main line are correspondingly disposed on two opposite sides of the light-transmitting substrate, the ground main line extends towards the power main line to form a plurality of ground branch lines, and the power main line extends towards the ground main line to form a plurality of power branch lines; the control circuit comprises a plurality of serial connection lines, each serial connection line is positioned between the adjacent grounding branch line and the adjacent power branch line, and the plurality of serial connection lines are arranged at intervals; the four conductive pins of each LED light-emitting unit are correspondingly and electrically connected with one of the grounding branch lines, one of the power branch lines and two mutually adjacent serial connection lines; the power main line, the grounding main line and one of the series connection lines can be electrically connected with the external control device.
Preferably, the two series lines connected to each of the LED lighting units can be used as a frequency data input terminal and a frequency data output terminal; the light-tight packaging body and the four conductive pins of each LED light-emitting unit are packaged and molded in a plastic packaging mode with lead wire sheet type carrier packaging.
Preferably, the light beam emitted by the first led chip within the half-value angle overlaps with the light beam emitted by the second led chip within the half-value angle and the light beam emitted by the third led chip within the half-value angle; the light beams emitted by the second light emitting diode chip and positioned in the half-value angle are mutually overlapped with the light beams emitted by the third light emitting diode chip and positioned in the half-value angle.
Preferably, the light beam emitted by the first led chip, the light beam emitted by the second led chip, and the light beam emitted by the third led chip within the half-value angle can directly pass through the light-transmitting package and be emitted to the outside.
The LED light bar and the advertisement screen have the beneficial effects that: because the controller is arranged in each LED light-emitting unit, the LED light-emitting lamp strip can have a relatively simple power supply circuit and a control circuit, and when the LED light-emitting lamp strip is attached to the transparent display glass, the simple power supply circuit and the control circuit can not easily influence the problem that a user watches the visual effect of the LED light-emitting lamp strip on the display glass.
Drawings
Fig. 1 is a schematic top view of an LED light bar according to the present invention.
Fig. 2 is a schematic side view of an LED light bar according to the present invention.
Fig. 3 is a partially enlarged schematic view of fig. 2.
Fig. 4 is a schematic diagram of an LED light emitting unit of the LED light bar of the present invention.
Fig. 5 is a top view of fig. 4.
FIG. 6 is a front view of an advertising screen of the present invention.
FIG. 7 is a side view of an advertising screen of the present invention.
Detailed Description
Please refer to fig. 1 and fig. 2, which are schematic diagrams of the LED light bar according to the present invention. As shown, the LED light bar 1 includes a transparent substrate 10 and a plurality of LED light units 20. The transparent substrate 10 includes a plurality of through holes 10a, the through holes 10a are formed at intervals on the transparent substrate 10, and each through hole 10a penetrates through the transparent substrate 10. The number and shape of the through holes 10a may vary according to requirements, and the illustration is only an exemplary embodiment, and not intended to limit the scope of the disclosure. It should be noted that, in order to clearly show the power supply line 31, the control line 32 and the plurality of LED light emitting units 20, the adhesive layer 11 is not shown in fig. 1.
The two opposite wide side surfaces of the transparent substrate 10 are respectively defined as a fixing surface 101 and an attaching surface 102, the attaching surface 102 is provided with an adhesive layer 11, one side of the adhesive layer 11 away from the attaching surface 102 is provided with a release member 12, the release member 12 can be torn off to expose the adhesive layer 11, the fixing surface 101 is provided with an electronic circuit 30, the electronic circuit 30 includes a power supply line 31 and a control line 32, and the power supply line 31 and the control line 32 can be electrically connected with an external control device (not shown). Through the arrangement of the release member 12, a user associated with the LED light bar 1 can expose the adhesive layer 11 of the LED light bar 1 by removing the release member 12, so that the adhesive layer 11 can be used to attach the LED light bar 1 to a member (e.g., glass) to be attached.
In practical applications, the transparent substrate 10 may be a strip, and the material of the transparent substrate 10 may be, for example, transparent PET or various transparent flexible circuit boards, and is not limited herein. The material of the adhesive layer 11 may be determined according to the material of the member to be adhered to the LED light bar 1, and is not limited herein.
The LED light emitting units 20 are fixed on the fixing surface 101 of the transparent substrate 10 at intervals, and the number and arrangement of the LED light emitting units 20 may be varied according to requirements, and the illustration is only exemplary. The LED light emitting units 20 may be fixed to the fixing surface 101 by soldering, gluing, or the like, but not limited thereto.
Fig. 3 to fig. 5 are schematic views of each LED light emitting unit 20 of the LED light bar 1 according to the present invention. As shown, each LED lighting unit 20 includes: a light-tight package 21, four conductive pins 22, a light-transmissive package 23, a first led chip 24, a second led chip 25, a third led chip 26 and a controller 27.
A receiving groove 21a is formed in a concave portion of one side of the light-tight package body 21, and the depth, shape, etc. of the receiving groove 21a can be changed according to the requirement, and is not limited to the illustration in the figure. One end of each conductive pin 22 is located in the receiving groove 21a, the other end of each conductive pin 22 is exposed out of the opaque package 21, and the four conductive pins 22 exposed out of the opaque package 21 respectively include a fixing portion 221, and each fixing portion 221 is disposed adjacent to a side surface of the opaque package 21 in which the receiving groove 21a is formed. In practical applications, a contact surface 2211 (a surface for electrically connecting to the power supply line and the control line) of the four fixing portions 221 of the four conductive pins 22 may be substantially flush with a side surface of the opaque package 21 having the receiving groove 21a formed therein.
In practical applications, the opaque package body 21 and the four conductive pins 22 may be packaged and molded in a Plastic Leaded Chip Carrier (PLCC) manner, and the four conductive pins 22 are lead frames, but the packaging manner is not limited thereto; in another embodiment, a substrate (not shown) may be disposed in the light-tight package 21, the first led chip 24, the second led chip 25, the third led chip 26 and the controller 27 are fixedly disposed on the substrate, the four conductive pins 22 are electrically connected to the substrate, and the four conductive pins 22 are electrically connected to the first led chip 24, the second led chip 25, the third led chip 26 and the controller 27 directly or indirectly through the substrate.
The transparent package 23 is filled in the receiving cavity 21a, and a light emitting surface 231 is formed on one side of the light-tight package 23 recessed into the light-tight package 21 to form the receiving cavity 21a, and the light emitting surface 231 may be flush with one side of the light-tight package 21 recessed into the receiving cavity 21 a. In practical applications, the light-transmissive package 23 may be doped with a plurality of diffusing particles (e.g., PMMA, Silicone, etc.) according to requirements.
The first led chip 24, the second led chip 25, the third led chip 26 and the controller 27 are electrically connected to conductive pins (not shown) disposed in the accommodating groove 21a, the controller 27 is electrically connected to the first led chip 24, the second led chip 25 and the third led chip 26, and the controller 27 can independently control the current and voltage entering the first led chip 24, the second led chip 25 or the third led chip 26. Therefore, the power and the transmitted signal provided by the external control device (not shown, such as a microprocessor, a computer, etc.) can enter the controller 27 through the four conductive pins 22 exposed out of the light-tight package 21, and the controller 27 can control the current entering the first led chip 24, the second led chip 25 and the third led chip 26 accordingly, so as to control the color temperature and the brightness of the mixed light beam.
The first led chip 24, the second led chip 25, the third led chip 26 and the controller 27 are correspondingly disposed in the accommodating groove 21a, and the first led chip 24, the second led chip 25, the third led chip 26 and the controller 27 are covered by the light-transmitting package 23, and the mixed light beams emitted by the first led chip 24, the second led chip 25 and the third led chip 26 can be emitted out through the light-emitting surface 231 of the light-transmitting package 23.
The irradiation range of any one of the first led chip 24, the second led chip 25 and the third led chip 26 can partially overlap with the irradiation range of at least one of the other led chips, and the light beams emitted by the first led chip 24, the second led chip 25 and the third led chip 26 can be mixed with each other to form a mixed light beam. In practical applications, the first led chip 24 can emit a light beam with a wavelength of 610 nm to 780 nm, the second led chip 25 can emit a light beam with a wavelength of 500 nm to 570 nm, and the third led chip 26 can emit a light beam with a wavelength of 450 nm to 495 nm; that is, the first led chip 24, the second led chip 25 and the third led chip 26 can emit red, green and blue light beams in a fleshy view, and the first led chip 24, the second led chip 25 and the third led chip 26 can be properly controlled by the controller 27 to mix white light beams.
In practical applications, the shape of the receiving groove 21a may be designed according to requirements, for example, the side wall forming the receiving groove 21a may be inclined, and the side wall forming the receiving groove 21a does not shield the light beam emitted by the first led chip 24 and located within the half-value angle, the light beam emitted by the second led chip 25 and the light beam emitted by the third led chip 26 and located within the half-value angle, and the light beam emitted by the first led chip 24 and located within the half-value angle, the light beam emitted by the second led chip 25 and the light beam emitted by the third led chip 26 and located within the half-value angle can be directly emitted through the light-transmitting package 23. In this way, the light beams emitted by the first led chip 24, the second led chip 25 and the third led chip 26 can be utilized to the maximum.
In a specific implementation, in order to effectively improve the utilization rate of the light beams emitted by the light emitting diode chips of the LED light emitting units 20, the light beam emitted by the first light emitting diode chip 24 within the half-value angle may overlap with the light beam emitted by the second light emitting diode chip 25 within the half-value angle and the light beam emitted by the third light emitting diode chip 26 within the half-value angle, and the light beam emitted by the second light emitting diode chip 25 within the half-value angle overlaps with the light beam emitted by the third light emitting diode chip 26 within the half-value angle.
As shown in fig. 1 and fig. 2, the light-transmitting substrate 10 may be in a long shape, and the power supply line 31 disposed on the fixing surface 101 of the light-transmitting substrate 10 may include a ground main line 311 and a power main line 312, the ground main line 311 and the power main line 312 extend along the length direction of the light-transmitting substrate 10 and are disposed on the fixing surface 101, and the ground main line 311 and the power main line 312 are correspondingly disposed on two opposite sides of the light-transmitting substrate 10. In practical applications, the ground main line 311 and the power main line 312 may be silver lines formed by electroplating, but not limited thereto; in different applications, the power supply line 31 and the control line 32 may be disposed on a transparent flexible printed circuit board, and the flexible printed circuit board may be fixed on the fixing surface 101 of the transparent substrate 10 in a bonding manner.
The ground main line 311 may have a plurality of ground branch lines 3111 extending in the direction of the power main line 312, and the power main line 312 may also have a plurality of power branch lines 3121 extending in the direction of the ground main line 311. The shape of the ground main line 311 and the power main line 312 may be changed according to the requirement, and is not limited to the illustration; in addition, the number of power branch lines 3121 of the ground branch line 3111 is approximately corresponding to the number of LED lighting units 20; the shapes and arrangement of the ground branch lines 3111 and the power branch lines 3121 may vary according to requirements, and are not limited to those shown in the drawings.
The two conductive pins 22 of each LED lighting unit 20 may be correspondingly connected to one of the ground branch lines 3111 and one of the power branch lines 3121, and the power required for the operation of each LED lighting unit 20 may be provided through the power main line 312 and the ground main line 311 by an external control device. Specifically, the power branch line 3121 and the ground branch line 3111 can be used as the power input terminal (VDD) and the power output terminal (GND) of each LED lighting unit 20.
The control line 32 may include a plurality of serial lines 321, each serial line 321 is located between the ground branch line 3111 and the power branch line 3121 adjacent to each other, and the plurality of serial lines 321 are spaced apart from each other. The shape and arrangement of the serial lines 321 may vary according to requirements, and are shown as an exemplary embodiment. The other two conductive pins 22 of each LED light-emitting unit 20 are electrically connected to two adjacent serial lines 321 correspondingly. In practical applications, the two serial lines 321 connected to each LED lighting unit 20 can be used as a frequency data input terminal (CLKI) and a frequency data output terminal (CLKO). In other words, two ends of each of the series lines 321 may be one of the conductive pins 22 correspondingly connecting the two LED light emitting units 20.
The external control device can be connected to a specific serial line 321 according to the requirement, and the external control device can transmit a control signal to the controller 27 of each LED lighting unit 20 through the serial line 321, so that the controller 27 can control the color temperature and the brightness of the mixed light beam according to the control signal transmitted by the external control device. In practical applications, the external control device S2 can control the color temperature and brightness of the mixed light beam emitted by each LED lighting unit 20 independently by properly designing the power supply line 31 and the control line 32.
In a specific application, the LED light bar 1 may further include a processor (not shown) electrically connected to the power line 31 and the control line 32, and the processor may be electrically connected or communicatively connected to an external electronic device, such as a computer, a smart phone, etc., and a user can control the processor through the external electronic device to control the color temperature and the brightness of the mixed light beam emitted by each LED light unit 20.
Specifically, the connection manner of the power supply line 31 and the control line 32 and the conductive pins 22 of the LED light emitting units 20 is only an exemplary manner, and in practical applications, the power supply line 31 and the control line 32 may be utilized to electrically connect the LED light emitting units 20 to each other in one of a series connection, a parallel connection, and a series-parallel connection as required.
The connection between the four conductive pins 22 of each LED light emitting unit 20 and the power supply line 31 and the control line 32 may be performed by soldering, but not limited thereto, for example, each LED light emitting unit 20 may also be electrically connected to the power supply line 31 and the control line 32 by conductive adhesive or the like.
In a specific application, one end of the power supply line 31 and one end of the control line 32 may be connected to an electrical connector (not shown), and the relevant user may be electrically connected to the external control device through the electrical connector, so that after the relevant user removes the release member 12 and attaches the LED light bar 1 to the member to be attached by using the adhesive layer 11, the user can simply pass through the electrical connector to electrically connect the LED light bar 1 to the external control device. In practical applications, the electrical connector may be, for example, a USB plug of various forms.
As described above, each LED light emitting unit 20 of the LED light bar 1 of the present invention is located on the side of the transparent substrate 10 opposite to the side having the adhesive layer 11, and the light beam emitted by each LED light emitting unit 20 of each LED light bar 1 is emitted through the through hole 10a of the transparent substrate 10 in the direction away from the adhesive layer 11, so that when a user attaches the LED light bar 1 to a display glass, the power supply line 31, the control line 32 and each LED light emitting unit 20 of the LED light bar 1 are correspondingly located on the inner side of the display glass (for example, facing a store), and the light beam emitted by each LED light emitting unit 20 can be emitted through the through hole 10a of the transparent substrate 10 to the side of the display glass opposite to the side where the LED light bar 1 is located, so that the probability of the LED light bar 1 being damaged can be greatly reduced. In other words, each LED light emitting unit 20 of the LED light bar 1 of the present invention is fixed on the transparent substrate 10 in a back-to-back manner, and the LED light bar 1 of the present invention may also be fixed on one side of the display glass in a back-to-back manner.
In addition, the controller 27 is provided in each LED light emitting unit 20 included in the LED light bar 1 of the present invention, and the power supply line 31 and the control line 32 of the LED light bar 1 of the present invention have simple structures, so that the light transmittance of the whole LED light bar 1 can be greatly improved. That is, if the relevant person watches from the side of the display glass opposite to the side where the LED light bar 1 is disposed toward the direction where the LED light bar 1 is disposed, the relevant person will only watch the simple power supply line 31 and the control line 32.
Please refer to fig. 6 and fig. 7, which are side views of the advertisement screen according to the present invention. As shown in the figure, the advertisement screen S includes a light-transmitting panel S1, a control device S2 and a plurality of LED light bars 1, the plurality of LED light bars 1 are disposed on one side of the light-transmitting panel S1 side by side, and the control device S2 is electrically connected to the plurality of LED light bars 1. In practical applications, the light-transmitting panel S1 may be provided with an outer frame S3 at the periphery thereof, and the control device S2 may be disposed in the outer frame S3. In the present embodiment, the control device S2 is the external control device described in the previous embodiment, and please refer to the previous embodiment for the detailed description of the LED light bar 1, which is not described herein again.
In the present embodiment, the LED light bars 1 are disposed side by side, but not limited thereto, and the arrangement manner of the LED light bars 1 disposed on the light-transmitting panel S1 may be designed according to the requirement, and is not limited herein. In one embodiment, the control device S2 may have a wire and a plug, and the user can be connected to the utility power through the wire and the plug. The control device S2 can also be connected in a wired or wireless manner to an external electronic device (e.g., a computer, a smart phone, etc.), and a user can use the electronic device to control the color temperature and brightness of the mixed light beam emitted by each LED lighting unit 20.
Claims (10)
1. An LED light bar, comprising:
the light-transmitting substrate comprises a plurality of through holes, the through holes are formed in the light-transmitting substrate at intervals, each through hole penetrates through the light-transmitting substrate, two opposite wide side surfaces of the light-transmitting substrate are respectively defined as a fixed surface and an attaching surface, the attaching surface is provided with an attaching layer, one side, away from the attaching surface, of the attaching layer is provided with a release member, the release member can be torn off to expose the attaching layer, the fixed surface is provided with a power supply line and a control circuit, and the power supply line and the control circuit can be electrically connected with an external control device; and
a plurality of LED light emitting units fixed to the fixing surface of the light-transmitting substrate, each of the LED light emitting units including:
a light-tight packaging body, one side of which is concave to form a containing groove;
four conductive pins, one end of each conductive pin is positioned in the containing groove,
the other end of each conductive pin is exposed out of the light-tight packaging body, the four conductive pins exposed out of the light-tight packaging body respectively comprise a fixing part, and each fixing part is arranged close to one side face of the light-tight packaging body, which is concavely formed with the accommodating groove; two of the conductive pins are electrically connected with the power supply circuit, and the other two conductive pins are electrically connected with the control circuit;
a first LED chip, a second LED chip and a third LED chip, wherein the first LED chip can emit light beams with wavelengths of 610-780 nm; the second light emitting diode chip can emit light beams with the wavelength of 500-570 nm; the third LED chip can emit light beams with the wavelength of 450-495 nanometers; the irradiation range of any one of the first light-emitting diode chip, the second light-emitting diode chip and the third light-emitting diode chip can be partially overlapped with the irradiation range of at least one of the rest light-emitting diode chips; the light beams emitted by the first light-emitting diode chip, the second light-emitting diode chip and the third light-emitting diode chip can be mixed with each other to form a light-mixed light beam;
a controller electrically connected to the first led chip, the second led chip, and the third led chip and the four conductive pins of the accommodating groove, wherein the controller is electrically connected to the first led chip, the second led chip, and the third led chip, and the controller is capable of independently controlling the current and voltage entering the first led chip, the second led chip, or the third led chip to control the color temperature and brightness of the mixed light beam; and
the light-transmitting packaging body is filled in the accommodating groove and correspondingly wraps the first light-emitting diode chip, the second light-emitting diode chip, the third light-emitting diode chip and the controller; the light mixing light beam can be emitted outwards through a light emitting surface of the light-transmitting packaging body;
the light emitting surface is arranged opposite to the through hole when each LED light emitting unit is fixedly arranged on the fixed surface, and light beams emitted by each LED light emitting unit can be emitted to one side far away from the binding surface of the light-transmitting base material through the corresponding through hole;
the external control device can be electrically connected with the controllers of the LED light-emitting units through the power supply circuit and the control circuit so as to control the color temperature and the brightness of light beams emitted by the LED light-emitting units.
2. The LED light bar of claim 1, wherein the light-transmissive substrate is in a strip shape, the power supply line includes a ground main line and a power main line, the ground main line and the power main line extend along a length direction of the light-transmissive substrate and are disposed on the fixing surface, the ground main line and the power main line are disposed on two opposite sides of the light-transmissive substrate, the ground main line extends toward the power main line to form a plurality of ground branch lines, and the power main line extends toward the ground main line to form a plurality of power branch lines; the control circuit comprises a plurality of serial connection lines, each serial connection line is positioned between the adjacent grounding branch line and the adjacent power branch line, and the plurality of serial connection lines are arranged at intervals; the four conductive pins of each LED light-emitting unit are correspondingly and electrically connected with one of the grounding branch lines, one of the power branch lines and two mutually adjacent serial connection lines; the power main line, the grounding main line and one of the series connection lines can be electrically connected with the external control device.
3. The LED light bar of claim 2, wherein the two series lines connected to each of the LED light units are configured as a frequency data input and a frequency data output; the light-tight packaging body and the four conductive pins of each LED light-emitting unit are packaged and molded in a plastic packaging mode with lead wire sheet type carrier packaging.
4. The LED light bar of claim 1 wherein the light beams emitted by the first LED chip that are within the half angle overlap the light beams emitted by the second LED chip that are within the half angle and the light beams emitted by the third LED chip that are within the half angle; the light beams emitted by the second light emitting diode chip and positioned in the half-value angle are mutually overlapped with the light beams emitted by the third light emitting diode chip and positioned in the half-value angle.
5. The LED light bar of claim 1 wherein the light beams emitted by the first LED chip, the second LED chip, and the third LED chip within the half angle are directed outwardly through the light-transmissive encapsulant.
6. An advertising screen, comprising:
a light transmissive panel;
a control device;
a plurality of LED light bars, each of the LED light bars comprising:
the light-transmitting substrate comprises a plurality of through holes, the through holes are formed in the light-transmitting substrate at intervals, each through hole penetrates through the light-transmitting substrate, two opposite wide side surfaces of the light-transmitting substrate are respectively defined as a fixed surface and an attaching surface, the attaching surface is provided with an attaching layer, and each LED light bar penetrates through the attaching layer to be fixedly attached to one side of the light-transmitting panel; the fixed surface is provided with a power supply circuit and a control circuit, and the power supply circuit and the control circuit can be electrically connected with the control device; and
a plurality of LED light emitting units fixed to the fixing surface of the light-transmitting substrate, each of the LED light emitting units comprising:
a light-tight packaging body, one side of which is concave to form a containing groove;
four conductive pins, one end of each conductive pin is positioned in the containing groove,
the other end of each conductive pin is exposed out of the light-tight packaging body, the four conductive pins exposed out of the light-tight packaging body respectively comprise a fixing part, and each fixing part is arranged close to one side face of the light-tight packaging body, which is concavely formed with the accommodating groove; two of the conductive pins are electrically connected with the power supply circuit, and the other two conductive pins are electrically connected with the control circuit;
a first LED chip, a second LED chip and a third LED chip, wherein the first LED chip can emit light beams with wavelengths of 610-780 nm; the second light emitting diode chip can emit light beams with the wavelength of 500-570 nm; the third LED chip can emit light beams with the wavelength of 450-495 nanometers; the irradiation range of any one of the first light-emitting diode chip, the second light-emitting diode chip and the third light-emitting diode chip can be partially overlapped with the irradiation range of at least one of the rest light-emitting diode chips; the light beams emitted by the first light-emitting diode chip, the second light-emitting diode chip and the third light-emitting diode chip can be mixed with each other to form a light-mixed light beam;
a controller electrically connected to the first led chip, the second led chip, and the third led chip and the four conductive pins of the accommodating groove, wherein the controller is electrically connected to the first led chip, the second led chip, and the third led chip, and the controller is capable of independently controlling the current and voltage entering the first led chip, the second led chip, or the third led chip to control the color temperature and brightness of the mixed light beam; and
the light-transmitting packaging body is filled in the accommodating groove and correspondingly wraps the first light-emitting diode chip, the second light-emitting diode chip, the third light-emitting diode chip and the controller; the light mixing light beam can be emitted outwards through a light emitting surface of the light-transmitting packaging body;
the light beams emitted by the LED light-emitting units through the light-emitting surface can pass through the through holes of the light-transmitting substrate and the light-transmitting panel and are emitted out of the light-transmitting panel from the other side opposite to the side provided with the LED light-emitting lamp bars; and
the control device is electrically connected with the power supply circuit and the control circuit of each LED light-emitting lamp strip, can provide electric power required by each LED light-emitting lamp strip, and can control the color temperature and the brightness of light beams emitted by each LED light-emitting unit.
7. The advertising screen of claim 6, wherein the light-transmitting substrate is in a strip shape, the power supply line comprises a ground main line and a power main line, the ground main line and the power main line extend along the length direction of the light-transmitting substrate and are disposed on the fixing surface, the ground main line and the power main line are correspondingly disposed on two opposite sides of the light-transmitting substrate, the ground main line extends towards the power main line to form a plurality of ground branch lines, and the power main line extends towards the ground main line to form a plurality of power branch lines; the control circuit comprises a plurality of serial connection lines, each serial connection line is positioned between the adjacent grounding branch line and the adjacent power branch line, and the plurality of serial connection lines are arranged at intervals; the four conductive pins of each LED light-emitting unit are correspondingly and electrically connected with one of the grounding branch lines, one of the power branch lines and two mutually adjacent serial connection lines; the power main line, the grounding main line and one of the series connection lines can be electrically connected with an external control device.
8. An advertising screen according to claim 7, wherein the two series lines to which each of the LED lighting units is connected are operable as a frequency data input terminal and a frequency data output terminal; the light-tight packaging body and the four conductive pins of each LED light-emitting unit are packaged and molded in a plastic packaging mode with lead wire sheet type carrier packaging.
9. The advertising screen of claim 6, wherein the light beams emitted by the first LED chip within the half-value angle overlap with the light beams emitted by the second LED chip within the half-value angle and the light beams emitted by the third LED chip within the half-value angle; the light beams emitted by the second light emitting diode chip and positioned in the half-value angle are mutually overlapped with the light beams emitted by the third light emitting diode chip and positioned in the half-value angle.
10. The advertising screen of claim 6, wherein the light beams emitted by the first LED chip, the second LED chip, and the third LED chip within the half-value angle are directly emitted through the light-transmissive package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810738084.7A CN110748815A (en) | 2018-07-06 | 2018-07-06 | LED light bar and advertisement screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810738084.7A CN110748815A (en) | 2018-07-06 | 2018-07-06 | LED light bar and advertisement screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110748815A true CN110748815A (en) | 2020-02-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810738084.7A Pending CN110748815A (en) | 2018-07-06 | 2018-07-06 | LED light bar and advertisement screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110748815A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023020476A1 (en) * | 2021-08-19 | 2023-02-23 | 深圳市晶泓科技有限公司 | Transparent led display screen |
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