CN104989987B - LED light bar, backlight module and liquid crystal display - Google Patents

LED light bar, backlight module and liquid crystal display Download PDF

Info

Publication number
CN104989987B
CN104989987B CN201510347252.6A CN201510347252A CN104989987B CN 104989987 B CN104989987 B CN 104989987B CN 201510347252 A CN201510347252 A CN 201510347252A CN 104989987 B CN104989987 B CN 104989987B
Authority
CN
China
Prior art keywords
pad
led light
light bar
led
circuit
Prior art date
Application number
CN201510347252.6A
Other languages
Chinese (zh)
Other versions
CN104989987A (en
Inventor
陈仕祥
陈倩
Original Assignee
武汉华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to CN201510347252.6A priority Critical patent/CN104989987B/en
Publication of CN104989987A publication Critical patent/CN104989987A/en
Application granted granted Critical
Publication of CN104989987B publication Critical patent/CN104989987B/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/001Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/0015Fastening arrangements intended to retain light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/001Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133603Direct backlight with LEDs

Abstract

The invention discloses a kind of LED light bar, including printed circuit board (PCB) and several be electrically connected at LED on the printed circuit board (PCB), the LED includes positive pole pin and negative pin, the spacing of positive pole pin and negative pin is L1, wherein, it is provided with m equidistantly arrangement pads and i circuit loops on the printed circuit board (PCB), the spacing of two neighboring pad is L2, and L2=L1;The i circuit loop includes i positive lead, at least one negative lead and some circuit connecting wires;By the diverse location being connected to several described LEDs in the m pad, whole loops in the i circuit loop or partial circuit are gated, obtains the LED light bar of a variety of different sizes.The invention also discloses the backlight module comprising LED light bar as described above and liquid crystal display.

Description

LED light bar, backlight module and liquid crystal display

Technical field

The present invention relates to LCD Technology field, especially a kind of LED light bar, further relate to using the LED light bar Backlight module and the liquid crystal display comprising the backlight module.

Background technology

Liquid crystal display generally includes liquid crystal panel and backlight module, and liquid crystal panel is oppositely arranged with backlight module, by Backlight module provides display light source to liquid crystal panel, so that liquid crystal panel shows image.Because LED has excellent characteristic, Such as low-power consumption, long-life, excellent color reproduction characteristics and contrast etc., in existing liquid crystal display, backlight mould Backlight in group mainly uses LED.

In order to meet the requirement of brightness, generally use is composed in series by multiple LEDs in backlight LED light bar.Such as Fig. 7 Shown, existing LED light bar includes printed circuit board (PCB) 1 and the multiple LEDs 2 being electrically connected on printed circuit board (PCB) 1.Specifically Ground, it is provided with multigroup pad 3 and the circuit connecting wire for being serially connected multigroup pad 3 on printed circuit board (PCB) 1 (in accompanying drawing not Show), each group of pad 3 includes positive terminal pad 3a and negative terminal pad 3b, positive terminal pad 3a and negative terminal pad in one group of pad 3 3b spacing is L1, and spacing L1 is equal with the positive pole pin 21 of LED 2 and the spacing of negative pin 22, each correspondence of LED 2 It is connected on one of which pad 3.The spacing of two adjacent groups pad 3 is L2, and normally, L2 is more than L1.Wherein, first group of pad 3 positive terminal pad 3a is connected with positive lead 4, and the negative terminal pad 3b of last group of pad 3 is connected with negative lead 5, just Pole connecting line 4 and negative lead 5 are connected to the drive circuit of outside.

In the development phase of liquid crystal display, especially for the liquid crystal display of small-medium size, initial stage assesses backlight It is only capable of during brightness according to database evaluation, if, it is necessary to change in LED light bar when brightness is undesirable after the completion of sample making The quantity of LED.The LED light bar of constituted above, multiple LEDs are serially connected to form a loop, and the quantity of wherein LED is Fixed, LED light bar can not convert specification., it is necessary to redesign corresponding printed circuit when now needing to change the quantity of LED Plate, because the cost of manufacture of printed circuit board (PCB) in LED light bar is higher, fabrication cycle is longer, and it may also relate to backlight mould Other materials of group change accordingly, have had a strong impact on the construction cycle of new product, while also increase development cost.

The content of the invention

In view of this, the invention provides a kind of LED light bar, by the improvement to the printed circuit board (PCB) in LED light bar, make The LED of a variety of varying numbers can be connected by obtaining on same printed circuit board (PCB), can be adjusted to the LED light bar of a variety of different sizes, The LED light bar is applied to the development phase of new product, the construction cycle of new product can be shortened, reduces development cost.

In order to achieve the above object, present invention employs following technical scheme:

A kind of LED light bar, including printed circuit board (PCB) and several be electrically connected at LED on the printed circuit board (PCB) Lamp, the LED include positive pole pin and negative pin, and the spacing of positive pole pin and negative pin is L1, wherein, the printing It is provided with m equidistantly arrangement pads and i circuit loops on circuit board, the spacing of two neighboring pad is L2, and L2=L1; The i circuit loop includes i positive lead, at least one negative lead and some circuit connecting wires;Wherein, institute State i positive lead be respectively connecting to the 1st, 3 ..., one of (2i-1) individual pad;At least one negative pole connection Line be connected to m, (m-2) ..., (m-2i+2) individual pad;The circuit connecting wire is used to connect two pads therein, its In, n-th of pad and (n+2i-1) individual pad are connected with each other by a circuit connecting wire;Pass through several LEDs by described in The diverse location being connected in the m pad, whole loops in the i circuit loop or partial circuit are gated, obtained The LED light bar of a variety of different sizes;Wherein, i is integer more than 1, m>>I, n=2,4,6 ....

Preferably, i value is 2~5.

Preferably, i value is 2 or 3.

Preferably, the quantity of the negative lead is 1, m, (m-2) ..., (m-2i+2) individual pad is all connected to The negative lead.

Preferably, parallel with one another between the i circuit loop, the circuit gated returns to include to be serially connected more Individual LED.

Another aspect of the present invention is to provide a kind of backlight module, including backboard and lamination is arranged at the backboard successively On reflector, light guide plate and optical diaphragm group, the one side of the light guide plate is provided with light source, wherein, the light source bag Include LED light bar as described above.

Present invention also offers a kind of liquid crystal display, and it includes liquid crystal panel and backlight module as described above, institute Liquid crystal panel to be stated to be oppositely arranged with the backlight module, the backlight module provides display light source to the liquid crystal panel, so that The liquid crystal panel shows image.

Beneficial effect:

LED light bar provided in an embodiment of the present invention, is provided with multiple equidistant pads on printed circuit board (PCB) therein, and two The spacing of individual pad is equal with the positive pole pin of LED and the spacing of negative pin, and thus, a LED may connect to arbitrarily On two adjacent pads.Further, multiple circuit loops are set in printed circuit board (PCB), by the LED for selecting varying number Lamp is connected to the diverse location in multiple pads, can gate whole circuit loops therein or partial circuit loop, obtains more The LED light bar of kind different size (quantity of different LEDs, different brightness).The LED light bar is applied to opening for new product In the hair stage, the construction cycle of new product can be shortened, reduce development cost.

Brief description of the drawings

Fig. 1 is the structural representation of the LED light bar in the embodiment of the present invention 1.

Fig. 2 is the structural representation of another specification of the LED light bar in the embodiment of the present invention 1.

Fig. 3 is the structural representation of the LED light bar in the embodiment of the present invention 2.

Fig. 4 is the structural representation of another specification of the LED light bar in the embodiment of the present invention 2.

Fig. 5 is the structural representation of the backlight module in the embodiment of the present invention 3.

Fig. 6 is the structural representation of the liquid crystal display in the embodiment of the present invention 3.

Fig. 7 is a kind of structural representation of existing LED light bar.

Embodiment

Can be with as it was previously stated, it is an object of the invention to provide a kind of LED light bar, on the printed circuit board (PCB) in the LED light bar A variety of varying number LEDs are connected with, the LED of a variety of different sizes (quantity of different LEDs, different brightness) can be formed Lamp bar, to shorten the construction cycle of new product and development cost.

Therefore, the invention provides the LED light bar of following structure, the LED light bar include printed circuit board (PCB) and several The LED being electrically connected on the printed circuit board (PCB).

Wherein, the LED includes positive pole pin and negative pin, and the spacing of positive pole pin and negative pin is L1, institute To state and m equidistantly arrangement pad and i circuit loops are provided with printed circuit board (PCB), the spacing of two neighboring pad is L2, and L2=L1.Because the spacing of LED positive pole pin and negative pin is that L1 with the spacing of two neighboring pad is L2 equal, therefore One LED can be connected on two pads of arbitrary neighborhood as needed.

Further, the i circuit loop includes i positive lead, at least one negative lead and some electricity Road connecting line;Wherein, the i positive lead be respectively connecting to the 1st, 3 ..., one of (2i-1) individual pad;It is described At least one negative lead be connected to m, (m-2) ..., (m-2i+2) individual pad;The circuit connecting wire is used to connect wherein Two pads, wherein, n-th of pad and (n+2i-1) individual pad are connected with each other by a circuit connecting wire.1 circuit returns Road includes 1 positive lead, multiple pads and negative lead, should when being connected with LED on the pad in the loop Circuit loop is path, and when on the pad in the loop without connection LED, the circuit loop is disconnection.Therefore, pass through by Several described LEDs are connected to the diverse location in the m pad, gate whole loops in the i circuit loop Or partial circuit, obtain the LED light bars of a variety of different sizes.Wherein, it is parallel with one another between the i circuit loop, gated Circuit return to include the multiple LEDs being serially connected.

Wherein, in parameter as above, i is integer more than 1, m>>I, n=2,4,6 ....

Than in more preferably scheme, i value is 2~5.

In the scheme being more highly preferred to, i value is 2 or 3.

In the scheme being more highly preferred to, the quantity of the negative lead is 1, m, (m-2) ..., (m-2i+2) individual weldering Disk is all connected to the negative lead.

Below in conjunction with accompanying drawing and specific embodiment, the technical scheme in the embodiment of the present invention is retouched in detail State, it is clear that described embodiment only a part of example of the present invention, rather than whole embodiments.Based in the present invention Embodiment, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made, Belong to the scope of the present invention.

Embodiment 1

A kind of LED light bar is present embodiments provided, as shown in figure 1, the LED light bar includes printed circuit board (PCB) 1 and some The individual LED 2 being electrically connected on the printed circuit board (PCB) 1, the LED 2 include positive pole pin 21 and negative pin 22, just The spacing of pole pin 21 and negative pin 22 is L1.

Wherein, as shown in Figure 1,12 equidistantly arrangement pads 11 are provided with the printed circuit board (PCB) 1, it is two neighboring The spacing of pad 11 is L2, and L2=L1.Due to LED 2 positive pole pin 21 and negative pin 22 spacing for L1 with it is adjacent The spacing of two pads 11 is that L2 is equal, therefore a LED 2 can be connected to two pads 11 of arbitrary neighborhood as needed On, the corresponding pad 11 of positive pole pin 21 of wherein LED 2, negative pin 22 corresponds to another pad 11.

Further, as shown in Figure 1,2 circuit loops are additionally provided with the printed circuit board (PCB) 1,2 circuits return Road includes 2 positive leads, 31,1 negative leads 32 and some circuit connecting wires 33.With from the one of printed circuit board (PCB) 1 End starts, and the pad 11 that mark 12 equidistantly arranges is the 1st to the 12nd, then:

2 positive leads 31 are respectively connecting to the 1st, 3 ..., one of (2i-1) individual pad 11;Specific to In the present embodiment, 2 positive leads 31 are respectively connecting to the 1st and the 3rd pad 11.

1 negative lead 32 be connected to m, (m-2) ..., (m-2i+2) individual pad 11;Specific to the present embodiment In, the negative lead 32 is connected to the 12nd and the 10th pad 11 simultaneously.Certainly, in some other embodiments, also may be used To be that the 12nd and the 10th pad 11 is connected to 1 negative lead 32.

The circuit connecting wire 33 is used to connect two pads 11 therein, wherein, n-th of pad 11 and (n+2i-1) Individual pad 11 is connected with each other by a circuit connecting wire 33;Specific in the present embodiment, the 2nd pad 11 and the 5th pad 11 It is connected with each other by a circuit connecting wire 33, the 4th pad 11 is interconnected with the 7th pad 11 by another phase of circuit connecting wire 33 Connect, the 6th pad 11 is connected with each other with the 9th pad 11 by another circuit connecting wire 33, the 8th pad 11 and the 11st weldering Disk 11 is connected with each other by a circuit connecting wire 33.

Printed circuit board (PCB) 1 in the present embodiment includes 12 pads 11, and it can at most connect 6 LEDs 2.Such as Fig. 1 institutes Show, 6 LEDs 2 are consecutively connected to since the 1st pad 11 on 12 pads 11.Now 2 in printed circuit board (PCB) 1 Circuit loop is path, and one of 31 and the 1st, 3,5 LEDs 2 of positive lead and negative lead 32 form one Individual circuit pathways, 31 and the 2nd, 4,6 LEDs 2 of another positive lead and negative lead 32 form another circuit Path, it is parallel with one another between two circuit pathways, 3 LEDs 2 being serially connected are included in each circuit pathways.

As a kind of mapping mode, 5 LEDs 2 can be connected on the printed circuit board (PCB) 1 that the present embodiment provides, shape Into the LED light bar of another specification.As shown in Fig. 25 LEDs 2 are since the 2nd pad 11 of printed circuit board (PCB) 1, always It is connected to the 11st pad 11.It is path now there was only one in 2 circuit loops in printed circuit board (PCB) 1, and one of them is just Pole connecting line 31 and 5 LEDs 2 and negative lead 32 form circuit pathways, are serially connected in the circuit pathways comprising 5 LED 2.

As can be seen here, in the present embodiment, pass through the diverse location several LEDs being connected in 12 pads, gating 2 circuit loops of whole only gate wherein 1 circuit loop, it is possible to obtain the LED light bar of different size.

Embodiment 2

As different from Example 1, as shown in figure 3, being provided with 3 circuit loops in the present embodiment on printed circuit board (PCB) 1, 3 circuit loops include 3 positive leads, 31,1 negative leads 32 and some circuit connecting wires 33.Wherein:

3 positive leads 31 are respectively connecting to the 1st, 3 ..., one of (2i-1) individual pad 11;Specific to In the present embodiment, 3 positive leads 31 are respectively connecting to the 1st, the 3rd and the 5th pad 11.

1 negative lead 32 be connected to m, (m-2) ..., (m-2i+2) individual pad 11;Specific to the present embodiment In, the negative lead 32 is connected to the 12nd, the 10th and the 8th pad 11 simultaneously.Certainly, in some other embodiments, Can also be that the 12nd, the 10th and the 8th pad 11 is connected to 1 negative lead 32.

The circuit connecting wire 33 is used to connect two pads 11 therein, wherein, n-th of pad 11 and (n+2i-1) Individual pad 11 is connected with each other by a circuit connecting wire 33;Specific in the present embodiment, the 2nd pad 11 and the 7th pad 11 It is connected with each other by a circuit connecting wire 33, the 4th pad 11 is interconnected with the 9th pad 11 by another phase of circuit connecting wire 33 Connect, the 6th pad 11 is connected with each other with the 11st pad 11 by another circuit connecting wire 33.

Printed circuit board (PCB) 1 in the present embodiment includes 12 pads 11, and it can at most connect 6 LEDs 2.Such as Fig. 3 institutes Show, 6 LEDs 2 are consecutively connected to since the 1st pad 11 on 12 pads 11.Now 3 in printed circuit board (PCB) 1 Circuit loop is path, and one of 31 and the 1st, 4 LEDs 2 of positive lead and negative lead 32 form one Circuit pathways, second positive lead, 31 and the 2nd, 5 LEDs 2 and negative lead 32 form second circuit pathways, 3rd positive lead, 31 and the 3rd, 6 LEDs 2 and negative lead 32 form the 3rd circuit pathways.Three circuits It is parallel with one another between path, 2 LEDs 2 being serially connected are included in each circuit pathways.

As a kind of mapping mode, only 3 LEDs 2 can be connected on the printed circuit board (PCB) 1 that the present embodiment provides, Form the LED light bar of another specification.As shown in figure 4,3 LEDs 2 are connected to the 2nd, 3,6,7,10,11 pad 11 On.It is path now there was only one in 3 circuit loops in printed circuit board (PCB) 1, one of positive lead 31 and 3 LED 2 and negative lead 32 form circuit pathways, and 3 LEDs 2 being serially connected are included in the circuit pathways.

As can be seen here, in the present embodiment, pass through the diverse location several LEDs being connected in 12 pads, gating 3 circuit loops of whole only gate wherein 1 circuit loop, it is possible to obtain the LED light bar of different size.

Embodiment 3

The present embodiment provide firstly a kind of backlight module, as shown in figure 5, the backlight module is including backboard 40 and successively Lamination is arranged at reflector 50, light guide plate 60 and optical diaphragm group 70 on the backboard 40, the side of the light guide plate 60 Face is provided with light source 80, wherein, the light source includes the LED light bar provided such as embodiment 1 or embodiment 2.

The present embodiment additionally provides a kind of liquid crystal display, as shown in fig. 6, the liquid crystal display includes liquid crystal panel 100 And the backlight module 200 provided in the present embodiment, the liquid crystal panel 100 are oppositely arranged with the backlight module 200, institute State backlight module 200 and provide display light source to the liquid crystal panel 100, so that the liquid crystal panel 100 shows image.

In summary, LED light bar provided in an embodiment of the present invention, be provided with printed circuit board (PCB) therein it is multiple equidistantly Pad, the spacing of two pads is equal with the spacing of the positive pole pin of LED and negative pin, and thus, a LED can connect It is connected on the adjacent pad of any two.Further, multiple circuit loops are set in printed circuit board (PCB), by selecting different numbers The LED of amount is connected to the diverse location in multiple pads, can gate whole circuit loops therein or partial circuit loop, Obtain the LED light bar of a variety of different sizes (quantity of different LEDs, different brightness).The LED light bar is applied to new production The development phase of product, the construction cycle of new product can be shortened, reduce development cost.

It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that Other identical element also be present in process, method, article or equipment including the key element.

Obviously, protection scope of the present invention is not limited to the embodiment of appeal, and those skilled in the art can To carry out various changes and modification to invention without departing from the spirit and scope of the present invention.So, if these of the present invention are repaiied Change within the scope of belonging to the claims in the present invention and its equivalent technologies with modification, then the present invention be also intended to comprising these change and Including modification.

Claims (7)

1. a kind of LED light bar, including printed circuit board (PCB) and several be electrically connected at LED on the printed circuit board (PCB), The LED includes positive pole pin and negative pin, and the spacing of positive pole pin and negative pin is L1, it is characterised in that described It is provided with m equidistantly arrangement pads and i circuit loops on printed circuit board (PCB), the spacing of two neighboring pad is L2, and L2 =L1;The i circuit loop includes i positive lead, at least one negative lead and some circuit connecting wires;Its In,
The i positive lead is respectively connecting to the 1st, 3 ..., one of (2i-1) individual pad;
At least one negative lead be connected to m, (m-2) ..., (m-2i+2) individual pad;
The circuit connecting wire is used to connect two pads therein, wherein, n-th of pad passes through with (n+2i-1) individual pad One circuit connecting wire is connected with each other;
By the diverse location being connected to several described LEDs in the m pad, to gate the i circuit loop In whole loops or partial circuit, obtain the LED light bars of a variety of different sizes on the printed circuit board;
Wherein, i is integer more than 1, m>>I, n=2,4,6 ....
2. LED light bar according to claim 1, it is characterised in that i value is 2~5.
3. LED light bar according to claim 1, it is characterised in that i value is 2 or 3.
4. LED light bar according to claim 1, it is characterised in that the quantity of the negative lead is 1, m, (m- 2) ..., (m-2i+2) individual pad is all connected to the negative lead.
5. according to any described LED light bars of right 1-4, it is characterised in that parallel with one another between the i circuit loop, institute The circuit of gating returns to include the multiple LEDs being serially connected.
6. a kind of backlight module, including backboard and lamination is arranged at reflector, light guide plate and light on the backboard successively Diaphragm group is learned, the one side of the light guide plate is provided with light source, it is characterised in that the light source includes claim 1-5 such as and appointed LED light bar described in one.
7. a kind of liquid crystal display, it is characterised in that described including the backlight module described in liquid crystal panel and claim 6 Liquid crystal panel is oppositely arranged with the backlight module, and the backlight module provides display light source to the liquid crystal panel, so that institute State liquid crystal panel and show image.
CN201510347252.6A 2015-06-19 2015-06-19 LED light bar, backlight module and liquid crystal display CN104989987B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510347252.6A CN104989987B (en) 2015-06-19 2015-06-19 LED light bar, backlight module and liquid crystal display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510347252.6A CN104989987B (en) 2015-06-19 2015-06-19 LED light bar, backlight module and liquid crystal display

Publications (2)

Publication Number Publication Date
CN104989987A CN104989987A (en) 2015-10-21
CN104989987B true CN104989987B (en) 2018-03-06

Family

ID=54301841

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510347252.6A CN104989987B (en) 2015-06-19 2015-06-19 LED light bar, backlight module and liquid crystal display

Country Status (1)

Country Link
CN (1) CN104989987B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110676360A (en) * 2019-10-09 2020-01-10 创维液晶器件(深圳)有限公司 LED lamp strip, backlight unit and display device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007273204A (en) * 2006-03-31 2007-10-18 Sharp Corp Planar lighting apparatus and display device with same
CN101968187A (en) * 2010-08-20 2011-02-09 深圳市华星光电技术有限公司 Light emitting diode backlight module
CN201916870U (en) * 2010-10-27 2011-08-03 广州创维平面显示科技有限公司 LED backlight lamp line, LED liquid crystal module and display device thereof
CN102705758B (en) * 2012-05-25 2014-08-13 京东方科技集团股份有限公司 Backlight module and display device
CN104597650B (en) * 2015-02-16 2017-09-05 深圳市华星光电技术有限公司 The front frame and curved surface liquid crystal display device of curved surface liquid crystal display device

Also Published As

Publication number Publication date
CN104989987A (en) 2015-10-21

Similar Documents

Publication Publication Date Title
WO2014014169A1 (en) Transparent electronic display board and method for manufacturing same
CN103426417B (en) Display device
CN104732908A (en) Display panel
CN104347033A (en) LED (Light-Emitting Diode) display screen driving circuit
CN102291865B (en) Alternate current driven light emitting device
JP6211097B2 (en) LED display display unit and manufacturing method thereof
CN205158877U (en) LED display control card, LED lamp plate and LED display system
CN101930710B (en) Apparatus of driving light source for display device
CN103069358A (en) Miniturization techniques, systems, and apparatus relating to power supplies, memory, interconnections, and leds
CN204904803U (en) Scanning card, LED lamp plate, switching card and LED display screen control system
CN102456296B (en) LED stereoscopic display screen
CN201057388Y (en) Linear LED screen
CN104914606A (en) Touch control panel and driving method thereof
CN103680432B (en) Liquid crystal indicator and the method driving this liquid crystal indicator
US20180047804A1 (en) Display panel, electronic device and test method
CN105513498B (en) A kind of flip chip and display device
CN204067334U (en) The lamp bar structure of optoelectronic semiconductor
JP2010525504A (en) Optical output device
CN101640012B (en) LED display module
CN106710560B (en) Driving circuit and display device for display panel
CN203606816U (en) Single layer mutual capacitance touch input device capable of reducing outgoing lines
CN101192371B (en) signal interface circuit of LED display module group
US20140237872A1 (en) Three-Dimensional Signboard and Making Method Thereof
CN107145009A (en) A kind of down straight aphototropism mode set and its driving method, liquid crystal display device
CN101603648A (en) Parallel type single-line addressing lighting device

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant