CN102194384A - LED (Light Emitting Diode) light emitting board and LED display screen - Google Patents
LED (Light Emitting Diode) light emitting board and LED display screen Download PDFInfo
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- CN102194384A CN102194384A CN2011101311343A CN201110131134A CN102194384A CN 102194384 A CN102194384 A CN 102194384A CN 2011101311343 A CN2011101311343 A CN 2011101311343A CN 201110131134 A CN201110131134 A CN 201110131134A CN 102194384 A CN102194384 A CN 102194384A
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- led
- luminous plaque
- light emitting
- led chip
- pcb board
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Abstract
The invention discloses an LED (Light Emitting Diode) light emitting board and an LED display screen. The LED light emitting board comprises a printed circuit board (PCB), a plurality of LED chips, a constant-current driving and control module and an optical lens face mask, wherein the LED chips are connected with the constant-current driving and control module; the PCB is a multi-layer PCB; the LED chips are distributed on the surface of the bottom layer of the multi-layer PCB; the constant-current driving and control module is arranged on the top layer of the multi-layer PCB; and the optical lens face mask is fixed on the bottom layer of the multi-layer PCB and is provided with a plurality of optical amplifying lenses which correspond to the LED chips one to one and are opposite to the LED chips. The LED light emitting board is adopted as a display light emitting board by the LED display screen. The LED light emitting board and the LED display screen have the beneficial effect of overcoming the defect that high-definition display cannot be realized due to overlarge space between the LED chips of the LED light emitting board.
Description
Technical field
The present invention relates to LED and show and lighting field, particularly relate to a kind of Multifunctional LED luminous plaque and a kind of LED display that can send N coloured light (N 〉=1).
Background technology
The demonstration luminous plaque of existing LED display, generally form by two parts:
One, display part is also named " module " hereinafter to be referred as module.On a wiring board,, connect each and be welded in LED on the wiring board by surperficial Copper Foil cabling.LED has two kinds of packaged types: a kind of is that (English is: Surface Mounted Devices, initialism is: the SMD) LED of form as 3528 and 5050 pasters etc., mounts the SMD lamp in the circuit board surface mount device.Another is dot matrix LED, promptly the led chip dot matrix is welded on the wiring board.Cover a plastic face mask then in the circuit board, there are a lot of perforates in the plastic face mask front, and each position, hole faces each the group LED lamp on the wiring board.
Two, constant-current driving and control section are also named " cell board " hereinafter to be referred as cell board.Cell board is controlled by external power source and control signal provides the demonstration current signal of module needs then, thereby makes module LED luminous.Module is connected with cell board by the PIN pin.
Wherein, module has two kinds too: the preamble introduction be a kind of, be mainly used in indoor; Another is used for the more LED of high brightness of outdoor needs, so generally use direct insertion LED.In order to solve waterproof problem,, solve outdoor use waterproof problem at module external member the inside encapsulating.
Existing demonstration luminous plaque exists serious technical matters and shortcoming:
1, can not realize that high density shows, promptly high Qinghua display technique is restricted, and to show that spacing can not be done very little because the LED package dimension has limited LED;
2, monolithic shows that luminous plaque can not carry out the white balance adjustment, can only proofread and correct with instrumentation be combined into monoblock display screen post-equalization;
3, show that the luminous plaque ingredient is too much, cause complex production process, technology cost height.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of LED luminous plaque and a kind of LED display to overcome the above-mentioned defective of prior art.
A kind of LED luminous plaque comprises pcb board, a plurality of led chip and constant-current driving and control module, and described led chip is connected with described constant-current driving and control module; Wherein, described pcb board is a multi-layer PCB board, and described a plurality of led chips are distributed in the bottom surface of described multi-layer PCB board, and described constant-current driving and control module are arranged on the plate top layer of described multi-layer PCB; Described LED luminous plaque also comprises the optical lens face shield that is fixed on the described multi-layer PCB board bottom, and described optical lens face shield is provided with a plurality of optics amplifying lenses corresponding one by one with described a plurality of led chips and that the position is relative.
Preferably, described constant-current driving and control module comprise the correction data memory module, be used for storage described led chip is carried out the formed adjusting data of pixel adjustment.
Preferably, described optical lens face shield comprises fore shell and is fixed on lens board on the described fore shell; Described a plurality of optics amplifying lens is arranged on the described lens board, and described fore shell is provided with the light hole that a plurality of and described a plurality of optics amplifying lens is corresponding one by one and the position is relative.
Preferably, described led chip adopts the direct nation of COB encapsulation technology to fix on described multi-layer PCB board bottom surface.
A kind of LED display, it shows that luminous plaque adopts aforesaid LED luminous plaque.
The beneficial effect that the present invention is compared with the prior art comprises: adopt the optics amplifying lens that the light that each LED sends is amplified, can improve the luminosity of luminous plaque on the one hand, on the other hand, be equivalent to the light-emitting area that has enlarged LED, overcome in the prior art, distance can't realize focusing on high definition technique for displaying defective too greatly between the adjacent LED; Adopt multi-layer PCB board to replace the polylith pcb board simultaneously, adopt a whole fore shell to replace the fore shell of polylith splicing, simplified production technology, reduced the manufacturing cost of LED luminous plaque, also compressed the volume of LED luminous plaque simultaneously.
In the preferred version, constant-current driving and control module comprise the correction data memory module, be used for storage described led chip is carried out the formed adjusting data of pixel adjustment.Realized the assembly unit preceding pixel adjusting of LED luminous plaque, that is: can carry out pixel adjustment to monolithic LED luminous plaque in process of production, and will regulate data storage in the correction data memory module, after selecting for use above-mentioned LED luminous plaque to be assembled into display screen arbitrarily, each luminous plaque white balance of display screen is consistent.
Description of drawings
Fig. 1 is the structural representation of the LED luminous plaque of the specific embodiment of the invention;
Fig. 2 is the fabric synoptic diagram of pcb board of the LED luminous plaque of Fig. 1;
Fig. 3 is the top level structure synoptic diagram of pcb board of the LED luminous plaque of Fig. 1;
Fig. 4 is the top level structure synoptic diagram of lens board of the LED luminous plaque of Fig. 1.
Embodiment
Contrast accompanying drawing and the present invention is explained in detail below in conjunction with preferred embodiment.
As shown in Figure 1, the LED luminous plaque of present embodiment can send versicolor light, has multiple functions of use, can be used for full-color demonstration, also can be used for highlight illumination and LED TV backlight.This LED luminous plaque comprises optical lens face shield, multi-layer PCB board 3 and is fixed on a plurality of led chips 4 on the multi-layer PCB board and constant-current driving and control module are formed that wherein the optical lens face shield is made up of fore shell 1 and lens board 2.
Shown in Fig. 2,3, the bottom surface employing COB(Chip On Board of multi-layer PCB board 3) encapsulation technology nation has decided a plurality of RGB all-colour LED chips 4, be used to show full-color image frame or send high-brightness white-light, in the practice, led chip also can adopt monochromatic LED chip or multi-colored led chip according to the demand of reality; The top layer of multi-layer PCB board 3 is provided with constant-current driving and control module, and this module is made up of constant current integrated circuit and signal controlling integrated circuit and peripheral accessory 6, also adopts the direct nation of COB encapsulation technology to fix on the top layer of multi-layer PCB board 3.Constant-current driving level control module connects by the Copper Foil that is provided with on the multi-layer PCB board, is used to control the work of RGB all-colour LED chip 4.Constant current integrated circuit and signal controlling integrated circuit also are respectively equipped with external connection terminals 7, are used for being connected with outside source with external power source; Wherein, be provided with the correction data memory module in the constant current integrated circuit, be used for storage described led chip 4 is carried out the formed adjusting data of pixel adjustment.Owing to set up the correction data memory module, LED luminous plaque of the present invention can carry out the pointwise pixel adjustment to each led chip 4 above the LED luminous plaque in process of production, and the pixel adjustment data (comprising colourity and gamma correction data) that produce are stored in this module, after being assembled into complete LED display, higher level's control system can directly read the good pixel adjustment data of storage, need not to carry out the pointwise pixel adjustment with instrumentation again.
Shown in Fig. 1,4, lens board 2 is provided with a plurality of optics amplifying lenses 8 corresponding one by one with led chip and that the position is relative, and lens are made by resin, PC, phosphor material powder; Fore shell 1 is an integral plastics, and the effect of fore shell 1 is: 1) the whole front of luminous plaque product-forming; 2), play protective actions such as protection against the tide, anticollision to the protection of inner led chip; 3) also play the effect of assembling fixed support with other assembly).Fore shell 1 is provided with a plurality of light holes corresponding one by one with described a plurality of optics amplifying lenses and that the position is relative; Light-passing board all is arranged in the light hole corresponding with it with fore shell in conjunction with each optics amplifying lens of fixing back.Also be provided with four fixed legs on the fore shell, corresponding, be respectively equipped with four face shield mounting holes 5 on light-passing board and the multi-layer PCB board, during installation, four fixed legs insert four face shields respectively and install in the air, and after the installation, each optics amplifying lens is buckled on the corresponding with it led chip 4 just.Thereby the light that the LED of each led chip 4 sends all can be amplified by an optics amplifying lens, thereby increased LED luminous coverage rate, be equivalent to the light-emitting area that has enlarged LED, overcome in the prior art, distance can't realize high definition technique for displaying defective too greatly between the adjacent LED.
LED luminous plaque of the present invention removes can be applied to LED display, outside the demonstration luminous plaque as LED display, can also be used for various standard-sized LCD TV, as the backlight or the full-color image display device of LED TV.
LED luminous plaque of the present invention also is used for various LED illuminations, brightening, as make the light source of light fixtures such as LED daylight lamp, LED Down lamp, realize that high brightness (utilizing the amplification of optics amplifying lens) and the various control system of configuration realize the intelligent function of controlling of LED illumination.And can select monochromatic LED chip or N look led chip (N 〉=2 comprise the RGB all-colour LED chip of present embodiment) as required,
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the technician of the technical field of the invention, without departing from the inventive concept of the premise, can also make some being equal to substitute or obvious modification, and performance or purposes are identical, all should be considered as belonging to protection scope of the present invention.
Claims (8)
1. a LED luminous plaque comprises pcb board, a plurality of led chip and constant-current driving and control module, and described led chip is connected with described constant-current driving and control module, it is characterized in that:
Described pcb board is a multi-layer PCB board, and described a plurality of led chips are distributed in the bottom surface of described multi-layer PCB board, and described constant-current driving and control module are arranged on the plate top layer of described multi-layer PCB;
Described LED luminous plaque also comprises the optical lens face shield that is fixed on the described multi-layer PCB board bottom, and described optical lens face shield is provided with a plurality of optics amplifying lenses corresponding one by one with described a plurality of led chips and that the position is relative.
2. LED luminous plaque according to claim 1 is characterized in that: described constant-current driving and control module comprise the correction data memory module, be used for storage described led chip is carried out the formed adjusting data of pixel adjustment.
3. LED luminous plaque according to claim 2 is characterized in that: described adjusting data comprise chromaticity correction data and gamma correction data.
4. LED luminous plaque according to claim 1 is characterized in that: described led chip is a N look led chip, and wherein, described N is more than or equal to 1.
5. according to claim 1,2,3 or 4 described LED luminous plaques, it is characterized in that: described led chip is a RGB all-colour LED chip.
6. according to claim 1,2,3 or 4 described LED luminous plaques, it is characterized in that: described optical lens face shield comprises fore shell and is fixed on lens board on the described fore shell; Described a plurality of optics amplifying lens is arranged on the described lens board, and described fore shell is provided with the light hole that a plurality of and described a plurality of optics amplifying lens is corresponding one by one and the position is relative.
7. according to claim 1,2,3 or 4 described LED luminous plaques, it is characterized in that: described led chip adopts the direct nation of COB encapsulation technology to fix on described multi-layer PCB board bottom surface.
8. a LED display comprises the demonstration luminous plaque, it is characterized in that: described demonstration luminous plaque is any described LED luminous plaque of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101311343A CN102194384A (en) | 2011-05-20 | 2011-05-20 | LED (Light Emitting Diode) light emitting board and LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101311343A CN102194384A (en) | 2011-05-20 | 2011-05-20 | LED (Light Emitting Diode) light emitting board and LED display screen |
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| CN102194384A true CN102194384A (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101311343A Pending CN102194384A (en) | 2011-05-20 | 2011-05-20 | LED (Light Emitting Diode) light emitting board and LED display screen |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708762A (en) * | 2012-06-22 | 2012-10-03 | 孙香凝 | Novel LED display screen module |
| CN103345886A (en) * | 2013-07-09 | 2013-10-09 | 深圳市华海诚信电子显示技术有限公司 | LED display screen based on chip-on-board packaging technique and production method thereof |
| CN112530302A (en) * | 2020-12-10 | 2021-03-19 | 康佳集团股份有限公司 | Micro LED display module and display device |
| CN116504147A (en) * | 2023-06-28 | 2023-07-28 | 元旭半导体科技(无锡)有限公司 | LED direct-display projection array light-emitting module and display screen |
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| US4603496A (en) * | 1985-02-04 | 1986-08-05 | Adaptive Micro Systems, Inc. | Electronic display with lens matrix |
| CN1302011A (en) * | 1999-12-28 | 2001-07-04 | 松下电器产业株式会社 | Display device for compensating color nonuniformity of picture elements |
| CN101101908A (en) * | 2006-07-07 | 2008-01-09 | 启萌科技有限公司 | LED module |
| CN201035859Y (en) * | 2006-06-26 | 2008-03-12 | 南京汉德森科技股份有限公司 | High-density full function LED display screen module |
| CN202307000U (en) * | 2011-05-20 | 2012-07-04 | 深圳市钧多立实业有限公司 | Light-emitting diode (LED) luminous panel and LED display screen |
-
2011
- 2011-05-20 CN CN2011101311343A patent/CN102194384A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4603496A (en) * | 1985-02-04 | 1986-08-05 | Adaptive Micro Systems, Inc. | Electronic display with lens matrix |
| CN1302011A (en) * | 1999-12-28 | 2001-07-04 | 松下电器产业株式会社 | Display device for compensating color nonuniformity of picture elements |
| CN201035859Y (en) * | 2006-06-26 | 2008-03-12 | 南京汉德森科技股份有限公司 | High-density full function LED display screen module |
| CN101101908A (en) * | 2006-07-07 | 2008-01-09 | 启萌科技有限公司 | LED module |
| CN202307000U (en) * | 2011-05-20 | 2012-07-04 | 深圳市钧多立实业有限公司 | Light-emitting diode (LED) luminous panel and LED display screen |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708762A (en) * | 2012-06-22 | 2012-10-03 | 孙香凝 | Novel LED display screen module |
| CN103345886A (en) * | 2013-07-09 | 2013-10-09 | 深圳市华海诚信电子显示技术有限公司 | LED display screen based on chip-on-board packaging technique and production method thereof |
| CN112530302A (en) * | 2020-12-10 | 2021-03-19 | 康佳集团股份有限公司 | Micro LED display module and display device |
| CN116504147A (en) * | 2023-06-28 | 2023-07-28 | 元旭半导体科技(无锡)有限公司 | LED direct-display projection array light-emitting module and display screen |
| CN116504147B (en) * | 2023-06-28 | 2023-09-01 | 元旭半导体科技(无锡)有限公司 | LED direct-display projection array light-emitting module and display screen |
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Application publication date: 20110921 |