WO2021258928A1 - 灯条、背光模组和显示装置 - Google Patents
灯条、背光模组和显示装置 Download PDFInfo
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- WO2021258928A1 WO2021258928A1 PCT/CN2021/094522 CN2021094522W WO2021258928A1 WO 2021258928 A1 WO2021258928 A1 WO 2021258928A1 CN 2021094522 W CN2021094522 W CN 2021094522W WO 2021258928 A1 WO2021258928 A1 WO 2021258928A1
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- Prior art keywords
- electrode
- circuit board
- negative
- led
- connection terminal
- Prior art date
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- 230000003068 static effect Effects 0.000 description 32
- 230000005611 electricity Effects 0.000 description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 238000010586 diagram Methods 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Images
Classifications
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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
- F21V19/0015—Fastening arrangements intended to retain light sources
- F21V19/0025—Fastening arrangements intended to retain light sources the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
-
- 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
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0004—Personal or domestic articles
- F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
-
- 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]
Definitions
- the present disclosure relates to the technical field of display product manufacturing, in particular to a light bar, a backlight module and a display device.
- the light emitting diode ((Light Emitting Diode, abbreviated as LED) light bar is the source of the light source of the backlight module.
- the antistatic ability of the product withstands static electricity, and The magnitude of static electricity (ie applying static electricity at the position to be tested) is related to the location of static electricity.
- the maximum static electricity that the product's weak antistatic position can withstand is used to evaluate the antistatic ability of the product.
- the industry has explored and specified static electricity Fix the weak position. For iron frame products, the opening of the iron frame is a weak place. When static electricity is applied here, if the product design ability is poor, it will cause the LED to go out.
- the present disclosure provides a light bar, a backlight module and a display device to solve the problem that the LED lamp in the weak position of static electricity cannot be normally lit.
- a light bar including a circuit board, on which a plurality of LED lights are arranged at intervals along the extending direction of the circuit board, and the circuit board A positive electrode connection terminal and a plurality of negative electrode connection terminals are provided thereon, a plurality of LED lamps are connected between each of the negative electrode connection terminals and the positive electrode connection terminal, and each of the LED lamps includes a first electrode and a second electrode ,
- the plurality of negative electrode connection ends includes a first negative electrode connection end, and the plurality of LED lights located between the first negative electrode connection end and the positive electrode connection end include a head end arranged in an extension direction of the circuit board LED lights, end LED lights, and a plurality of intermediate LED lights located between the head end LED lights and the end LED lights;
- the first electrode of the head-end LED lamp is electrically connected to the second electrode of the end LED lamp, wherein the first electrode is a positive electrode and the second electrode is a negative electrode;
- the plurality of LED lights located between the first negative electrode connection terminal and the positive electrode connection terminal include first LED lights and second LED lights located on opposite sides of the first position in the extending direction of the circuit board ,
- the second electrode of the first LED lamp is connected to the first negative electrode connection end, and the first electrode of the second LED lamp is connected to the positive electrode connection end.
- the first negative electrode connection terminal is the first negative electrode connection terminal or the last negative electrode connection terminal arranged along the extension direction of the circuit board.
- the first negative electrode connection terminal is a first negative electrode connection terminal arranged along an extension direction of the circuit board, and the second LED lamp is the head-end LED lamp.
- the first negative connection end is the last negative connection end arranged along the extension direction of the circuit board, and the second LED light is the end LED light.
- the positive electrode connection end and the negative electrode connection end are located at the same end of the circuit board in its extension direction.
- a plurality of the LED lights are uniformly arranged on the circuit board along the extending direction of the circuit board.
- the plurality of negative electrode connection ends includes a second negative electrode connection end different from the first negative electrode connection end, and the plurality of LED lights located between the positive electrode connection end and the second negative electrode connection end are along The extending directions of the circuit boards are sequentially connected in series.
- a plurality of LED lights are provided on the first surface of the circuit board, a positive electrode trace connected to the positive electrode connection end is distributed on the first surface, and the circuit board is opposite to the first surface On the second surface of the arrangement, there are distributed negative electrode wires respectively connected to a plurality of the negative electrode connecting ends.
- the embodiment of the present disclosure also provides a backlight module including the above-mentioned light bar.
- the embodiment of the present disclosure also provides a display device including the above-mentioned backlight module.
- the beneficial effects of the present disclosure are: changing the connection mode of the multiple LEDs between the first negative wiring and the positive wiring, dispersing static electricity to more LEDs, improving the static electricity endurance, and avoiding the situation that the LEDs cannot be lighted normally occur.
- Figure 1 shows a schematic diagram of the iron frame structure in the related technology
- Figure 2 shows a schematic diagram of the structure of the light bar in the related art
- Fig. 3 shows a schematic diagram of the wiring on the back of the light bar of Fig. 2;
- Figure 4 shows a schematic diagram of the LED connection of the light bar in the related art
- Figure 5 shows a schematic diagram of an equivalent circuit of a light bar in the related art
- FIG. 6 shows a schematic diagram of the structure of the light bar in an embodiment of the present disclosure
- FIG. 7 shows a schematic diagram of wiring on the back of the light bar of FIG. 6;
- FIG. 8 shows a schematic diagram of the connection and routing of the first LED lamp group along the extension direction of the circuit board in an embodiment of the present disclosure
- FIG. 9 shows a schematic diagram of the backside wiring of FIG. 8.
- FIG. 10 shows a schematic diagram of the LED connection of the light bar in an embodiment of the present disclosure
- FIG. 11 shows a schematic diagram of the connection and routing of the last LED light group along the extension direction of the circuit board in the embodiment of the present disclosure
- Fig. 12 shows a schematic diagram of the wiring on the back of the light bar of Fig. 11.
- the backlight module includes an iron back plate 10, which includes a bottom plate and a side plate.
- the circuit board 20 of the light bar includes a main body part 201 and a connecting part 202 connected to the main body part 201 (distinguished by a dotted line in FIG. 1).
- the main body part 201 is provided with a plurality of LEDs, and the main body part 201 A strip structure extending in the X direction, the connecting portion 202 extends from the main body portion 201 and extends in a direction perpendicular to the X direction, and the main body portion 201 and the connecting portion 202 are connected in an L shape ,
- the light bar is assembled with the iron back plate 10, the main body part 201 is connected to the bottom plate, and the connecting part 202 extends from the opening 101 (ie, the iron frame opening) provided on the side plate.
- the LED lights on the circuit board are divided into 4 groups, each group of LED lights includes 5 LED lights in series, when the static electricity test, static electricity enters from the first position 10. That is, the position where the main body part 201 of the light bar 20 intersects with the connecting part 202 shown in FIG. The position between the first LED lamp 11 and the second LED lamp 12 in the first group of LED lamps in FIG. 5.
- the right electrode of the second LED lamp 12 is directly connected to the negative terminal K1
- the left electrode of the second LED lamp 12 is connected to 4 LED lamps, that is, the static electricity propagates to the right and only passes through
- An LED lamp has a total resistance of R, and static electricity propagates to the left through 4 LED lamps.
- the total resistance is 4R. Therefore, in the direction of static electricity propagation to the right, the light bar has poor antistatic ability.
- the static voltage exceeds 4KV, the first 2.
- the LED light cannot bear, causing the LED light to fail and turn off.
- the light bar includes a circuit board 1, and the circuit board 1 extends along the extending direction of the circuit board 1 (refer to FIG. (X direction) a plurality of LED lights are arranged at intervals, the circuit board is provided with a positive connection terminal and a plurality of negative connection terminals, each of the negative connection terminal and the positive connection terminal is connected with a plurality of LED lights , wherein each of the LED lamps includes a first electrode and a second electrode that are arranged oppositely, and a plurality of the negative electrode connection ends includes a first negative electrode connection end, which is located between the first negative electrode connection end and the positive electrode connection end.
- the plurality of LED lights in between includes a head end LED lamp, an end LED lamp, and a plurality of middle LED lights located between the head end LED lamp and the end LED lamp, which are sequentially arranged in the extending direction of the circuit board;
- the first electrode of the head-end LED lamp is electrically connected to the second electrode of the end LED lamp, wherein the first electrode is a positive electrode and the second electrode is a negative electrode;
- the plurality of LED lights located between the first negative electrode connection terminal and the positive electrode connection terminal include first LED lights and second LED lights located on opposite sides of the first position in the extending direction of the circuit board ,
- the second electrode of the first LED lamp is connected to the first negative electrode connection end, and the first electrode of the second LED lamp is connected to the positive electrode connection end.
- the first electrode and the second electrode of each LED lamp are arranged on both sides of the LED lamp along the x direction shown in FIG. 10, but it is not limited to this.
- the first electrode is a positive electrode
- the second electrode is a negative electrode.
- a current of a preset magnitude flows in from the positive electrode and flows out from the negative electrode, so as to realize the lighting of the corresponding LED lamp; in this embodiment, the first electrode of the LED lamp is positive,
- the second pole is negative for example.
- the plurality of LED lamps located between the first negative electrode connection terminal K1 and the positive electrode connection terminal A include a head end LED lamp 13 and an end LED lamp 13 arranged along the extension direction (X direction) of the circuit board 1.
- a lamp, and a plurality of intermediate LED lamps located between the head end LED lamp 13 and the end LED lamp, and the end LED lamp is the second LED lamp 12.
- the first position 10 is an electrostatic test position.
- static electricity enters from the first position 10, that is, the position between the first LED lamp 11 and the second LED lamp 12 in FIG. 10, and the static electricity runs along the circuit
- the second electrode of the second LED lamp 12 that is, the end LED lamp
- the first electrode of the second LED lamp 12 is connected to the The positive connection terminal A
- the second electrode of the first LED lamp 11 is connected to the first negative connection terminal (negative connection terminal K1), that is, the first LED lamp 11 is connected in series on the side where the first electrode is located
- the 4 LED lights are then connected to the positive connection terminal A, and the second LED light 12 is connected to the first negative connection terminal after the 4 LED lights are connected in series on the side where the second electrode is located.
- the antistatic ability of the light bar of this embodiment is less than 4KV, and can be increased to greater than 6KV.
- the circuit board 1 includes a main body 11 extending along the X direction, and a connection extending from the main body 11 and extending in a direction perpendicular to the X direction.
- Part 12 the connection part 12 and the main body part 11 are connected in an inverted L shape.
- the LED lights on the circuit board 1 shown in Figs. 6-12 include 4 groups of LED lights arranged in parallel, and each group of LED lights includes 5 LED lights connected in series.
- the wiring connection in this embodiment is exemplified, but not limited to this.
- the number of LED light groups and the number of LED lights included in each LED light group can be set according to actual needs.
- the circuit board 1 is a flexible circuit board.
- the first negative connection terminal is the first negative connection terminal or the last negative connection terminal arranged along the extension direction of the circuit board 1.
- the static electricity test position is the weak static electricity position, and the weak static electricity position is generally located at one end of the circuit board 1 in the extension direction, and the negative connection end at the end located in the extension direction of the circuit board 1 is the first negative connection end , And the static weak position is different, the position of the first negative electrode connection end is different, for example:
- the first negative connection terminal is the first negative connection terminal arranged along the extension direction of the circuit board 1
- the second LED lamp 12 is along the circuit board.
- the head end LED light is set in the extension direction of 1.
- the first negative connection terminal is the last negative connection terminal arranged along the extension direction of the circuit board 1
- the second LED lamp 12 is along the circuit board 1.
- the end LED lights are set in the extension direction.
- the static weak position is not limited to one end located in the extending direction of the circuit board 1, and the position of the first negative electrode connection terminal is not limited to the first negative terminal located along the extending direction of the circuit board 1.
- the electrostatic test position may be the middle of the circuit board, and the negative connection terminal at the corresponding position is the first negative connection terminal.
- the circuit board 1 includes a positive connection terminal A located at one end of the circuit board 1 along the extension direction of the circuit board 1 and a plurality of negative connection terminals (K1 , K2, K3, K4).
- the positive connection terminal and the negative connection terminal can be arranged at either end of the extension direction of the circuit board, and the positive connection terminal and the negative connection terminal can be arranged at the same end or at different ends.
- the positive connection end and the negative connection end are located at the same end of the circuit board in the extension direction of the circuit board, and the number of the negative connection ends can be set according to actual needs, refer to FIG. 6 - Figure 12.
- a plurality of the LED lights are uniformly arranged on the circuit board 1 along the extending direction of the circuit board to ensure the display effect.
- the plurality of negative electrode connection ends includes a second negative electrode connection end that is different from the first negative electrode connection end, and a plurality of LED light edges located between the positive electrode connection end and the second negative electrode connection end
- the circuit boards 1 are sequentially connected in series along the extending direction.
- connection and routing methods of the remaining three LED lamp groups are the same.
- the first LED light group includes LED1, LED2, LED3, LED4, and LED5 along the extension direction of the circuit board.
- One electrode is connected to the anode connection terminal A through the anode wire 100, the second electrode of the LED1 is connected to the first electrode of the LED2, and the second electrode of the LED2 is connected to the first electrode of the LED3 Connected, the second electrode of the LED3 is connected to the first electrode of the LED4, the second electrode of the LED4 is connected to the first electrode of the LED5, and the second electrode of the LED5 is connected to the The negative electrode is connected to the terminal K4.
- the circuit board 1 includes a main body portion 11 extending along the X direction, and a connecting portion 12 extending from the main body portion 11 and extending in a direction perpendicular to the X direction.
- the connecting portion 12 is connected to the main body 11 in an inverted L shape.
- the first surface of the main body 11 is provided with LED1, LED2, LED3, LED4, and LED5.
- the first surface of the main body 11 is along the X
- the anode wire 100 is extended in the direction, one end of the anode wire 100 is connected to the first electrode of the LED1, and the other end of the anode wire 100 is connected to the first connection point at the end of the main body 11 110.
- the connecting portion 12 includes a second surface located on the same plane as the first surface, and a third surface disposed opposite to the second surface, and first intermediate connections are distributed on the third surface of the connecting portion 12 Line 101, one end of the first intermediate connection line 101 is connected to the positive electrode connection end A, and the other end of the first intermediate connection line 101 extends in a direction close to the main body 11 and is connected to the The first connection point 110 on the main body 11 is described.
- the main body portion 11 includes a fourth surface opposite to the first surface, and a negative electrode wire 200 connected to the negative electrode connection terminal K4 is provided on the third surface of the connecting portion 12, and the negative electrode wire 200 It extends in a direction approaching the main body portion 11 and extends on the fourth surface along the X direction, and is connected to the second electrode of the LED 5.
- connection mode and the distribution of the connection wires between the first negative connection terminal and the positive connection terminal of the plurality of LED lights can prolong static electricity transmission
- the distance increases the total resistance on the static transmission path, and the wiring distribution at other positions on the circuit board 1 and the connection mode of the LED lights can be different, so as to facilitate the overall wiring distribution on the circuit board , Reduce the wiring settings.
- the first negative connection end is the last negative connection end (as shown in the figure) arranged along the extension direction of the circuit board 1.
- the negative connection terminal K1) is shown.
- the first surface of the main body of the circuit board 1 is provided with LED16, LED17, LED18, LED19, and LED20 along the X direction.
- LED20 is the end LED, and LED19 and LED20 are located at the place where static electricity is applied.
- the first electrode of the LED16 is connected to the second electrode of the LED20, the second electrode of the LED16 is connected to the first electrode of the LED17, and the second electrode of the LED17 is connected to the The electrode is connected to the first electrode of the LED18, the second electrode of the LED18 is connected to the first electrode of the LED19, the second electrode of the LED19 is connected to the negative terminal K1, and the first electrode of the LED20 is connected to The positive terminal A is connected.
- a positive electrode trace 100 is distributed on the first surface of the main body of the circuit board 1.
- the positive electrode trace 100 extends along the X direction, and the positive electrode trace 100 is connected to the first electrode of the LED 20 through an intermediate connecting line.
- the end of the positive electrode trace 100 close to the end of the main body portion is connected to a first connection point, and the connection portion includes a second surface that is located on the same surface as the first surface, and is opposite to the second surface
- the third surface is provided with a first intermediate connection line 101 distributed on the third surface.
- One end of the first intermediate line 101 is connected to the positive electrode connection end A, and the other end of the first intermediate connection line 101 is approaching The direction of the main body portion extends and is connected to the first connection point.
- a second intermediate connecting wire 201 connected to the negative terminal K1 is distributed on the third surface of the connecting portion. Electrode connection.
- the main body includes a fourth surface opposite to the first surface, and a third intermediate connection between the first electrode of the LED 16 and the second electrode of the LED 20 is provided on the fourth surface. Line 202.
- the embodiment of the present disclosure also provides a backlight module including the above-mentioned light bar.
- the embodiment of the present disclosure also provides a display device including the above-mentioned backlight module.
- the display device may be any product or component with a display function such as an LCD TV, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, etc., wherein the display device also includes a flexible circuit board, a printed circuit board, and a backplane.
- a display function such as an LCD TV, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, etc.
- the display device also includes a flexible circuit board, a printed circuit board, and a backplane.
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
Claims (10)
- 一种灯条,包括电路板,所述电路板上沿着所述电路板的延伸方向间隔设置有多个LED灯,所述电路板上设置有一个正极连接端和多个负极连接端,每个所述负极连接端与所述正极连接端之间连接有多个LED灯,其中,每个所述LED灯包括相对设置的第一电极和第二电极,多个所述负极连接端包括第一负极连接端,位于所述第一负极连接端和所述正极连接端之间的多个LED灯包括在所述电路板的延伸方向上依次设置的首端LED灯、末端LED灯和位于所述首端LED灯和所述末端LED灯之间的多个中间LED灯;所述首端LED灯的第一电极与所述末端LED灯的第二电极电连接,其中,所述第一电极为正极,所述第二电极为负极;位于所述第一负极连接端和所述正极连接端之间的多个LED灯包括位于第一位置在所述电路板的延伸方向上的相对的两侧的第一LED灯和第二LED灯,所述第一LED灯的第二电极与所述第一负极连接端连接,所述第二LED灯的第一电极与所述正极连接端连接。
- 根据权利要求1所述的灯条,其中,所述第一负极连接端为沿着所述电路板的延伸方向设置的第一个负极连接端或者最后一个负极连接端。
- 根据权利要求2所述的灯条,其中,所述第一负极连接端为沿着所述电路板的延伸方向设置的第一个负极连接端,所述第二LED灯为所述首端LED灯。
- 根据权利要求2所述的灯条,其中,所述第一负极连接端为沿着所述电路板的延伸方向设置的最后一个负极连接端,所述第二LED灯为所述末端LED灯。
- 根据权利要求2所述的灯条,其中,所述正极连接端和所述负极连接端位于所述电路板在其延伸方向上的同一端。
- 根据权利要求1所述的灯条,其中,多个所述LED灯沿着所述电路板的延伸方向均匀设置于所述电路板上。
- 根据权利要求1所述的灯条,其中,多个所述负极连接端包括不同于所述第一负极连接端的第二负极连接端,位于所述正极连接端和所述第二负极 连接端之间的多个LED灯沿着所述电路板的延伸方向依次串联连接。
- 根据权利要求1所述的灯条,其中,所述电路板的第一面设置有多个LED灯,所述第一面上分布有与所述正极连接端连接的正极走线,所述电路板与所述第一面相对设置的第二面上分布有分别与多条所述负极连接端连接的负极走线。
- 一种背光模组,其中,包括权利要求1-8任一项所述的灯条。
- 一种显示装置,其中,包括权利要求9所述的背光模组。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US17/761,554 US11732874B2 (en) | 2020-06-24 | 2021-05-19 | Light strip, backlight module and display device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN202021202702.5 | 2020-06-24 | ||
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JP2016162829A (ja) * | 2015-02-27 | 2016-09-05 | 日亜化学工業株式会社 | 発光装置 |
CN205679886U (zh) * | 2016-05-03 | 2016-11-09 | 上海中航光电子有限公司 | 一种背光模组及其显示装置 |
CN205942205U (zh) * | 2016-08-29 | 2017-02-08 | 无锡博一光电科技有限公司 | 一种可释放静电的背光源 |
CN208596273U (zh) * | 2018-08-30 | 2019-03-12 | 北京京东方光电科技有限公司 | 一种灯条、背光模组和液晶显示装置 |
CN212112067U (zh) * | 2020-06-24 | 2020-12-08 | 北京京东方光电科技有限公司 | 灯条、背光模组和显示装置 |
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US20130242538A1 (en) * | 2012-03-13 | 2013-09-19 | Shenzhen China Star Optoelectronics Technology Co Ltd. | Led light bar and backlight module |
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CN102606937A (zh) * | 2012-03-13 | 2012-07-25 | 深圳市华星光电技术有限公司 | 一种发光二极管灯条及背光模块 |
JP2016162829A (ja) * | 2015-02-27 | 2016-09-05 | 日亜化学工業株式会社 | 発光装置 |
CN205679886U (zh) * | 2016-05-03 | 2016-11-09 | 上海中航光电子有限公司 | 一种背光模组及其显示装置 |
CN205942205U (zh) * | 2016-08-29 | 2017-02-08 | 无锡博一光电科技有限公司 | 一种可释放静电的背光源 |
CN208596273U (zh) * | 2018-08-30 | 2019-03-12 | 北京京东方光电科技有限公司 | 一种灯条、背光模组和液晶显示装置 |
CN212112067U (zh) * | 2020-06-24 | 2020-12-08 | 北京京东方光电科技有限公司 | 灯条、背光模组和显示装置 |
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