CN204496855U - A kind of LED display - Google Patents
A kind of LED display Download PDFInfo
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- CN204496855U CN204496855U CN201520032965.9U CN201520032965U CN204496855U CN 204496855 U CN204496855 U CN 204496855U CN 201520032965 U CN201520032965 U CN 201520032965U CN 204496855 U CN204496855 U CN 204496855U
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Abstract
The utility model discloses a kind of LED display, comprise circuit board and many group three-color LED chips; Described circuit board is provided with multiple pixel region, often organize described three-color LED chip package in a described pixel region, wherein, at least three pad areas are provided with in each described pixel region, the respective electrode of described three-color LED chip is electrically connected with described three pad areas respectively, realizes at least two described LED chips and controls separately.By the way, the utility model more easily can realize the little dot spacing of LED display, and can control LED chip separately, is conducive to improving precision.
Description
Technical field
The utility model relates to technical field of LED display, particularly relates to a kind of LED display.
Background technology
Competition along with traditional LED display more comes about fierce, and the LED display of little dot spacing is more and more paid attention to by manufacturer.With traditional LED display unlike, namely so-called little dot spacing refers to that the spacing of pixel is less.The LED display of little dot spacing due to pixel interval less, thus have seamless spliced, truly reduce the advantage such as color, the more stable smoothness of picture, truly achieve seamless large high-definition screen.
In existing point space distance LED display screen technology, normally LED chip is installed on the package support to form the LED lamp bead of discrete type, then LED lamp bead is installed and form luminous pixel on a printed circuit.But, adopt above-mentioned technology, by packaged LED lamp bead by Placement to printed circuit board (PCB) time, when easily causing rosin joint, affect product quality.Further, be difficult to due to the existence of package support when packaged LED lamp bead being installed on printed circuit board (PCB) realize real little dot spacing.
Utility model content
The technical matters that the utility model mainly solves is to provide a kind of LED display, can improve the quality of products, and more easily realizes the little dot spacing of LED display.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of LED display, comprises circuit board and many group three-color LED chips; Described circuit board is provided with multiple pixel region, often organize described three-color LED chip package in a described pixel region, wherein, at least three pad areas are provided with in each described pixel region, the respective electrode of described three-color LED chip is electrically connected with described three pad areas respectively, realizes at least two described LED chips and controls separately.
Wherein, the quantity of described pad area is six, described three-color LED chip is fixed in one of them pad area, and the negative pole of a LED chip in described three-color LED chip is electrically connected with a described pad area, the negative pole of another two LED chips is electrically connected with two pad areas in all the other five pad areas respectively, the positive pole of described three-color LED chip is electrically connected with residue three pad areas in all the other five pad areas described, respectively to realize the independent control of each described LED chip.
Wherein, described three-color LED chip is respectively red, green, the blue LED chip of display; The described LED chip that negative pole is electrically connected with a described pad area is show red unipolarity LED chip, the unipolarity LED chip of described display redness is fixed in a described pad area by elargol, is electrically connected with a described pad area to realize its negative pole; Described another two LED chips are respectively the green and blue bipolarity LED chip of display, and described display green and blue bipolarity LED chip are fixed in a described pad area by insulating gel.
Wherein, the LED chip that described display is red, green, blue is fixed in one of them pad area described along first direction arrangement.
Wherein, the quantity of described pad area is four, described three-color LED chip is fixed in one of them pad area, and the negative pole of a LED chip in described three-color LED chip is electrically connected with a described pad area, the negative pole of another two LED chips is electrically connected with two pad areas in its excess-three pad area respectively, the positive pole of described three-color LED chip is all electrically connected with the residue pad area in described its excess-three pad area, wherein, the load that three pad areas connected with the negative electricity of described three-color LED chip respectively connect or reference voltage not identical, control separately to realize each described LED chip.
Wherein, the spacing between described pixel region is 0.8mm ~ 3.9mm.
Wherein, described pixel region is be arranged on the groove on described circuit board, is filled with packaging plastic to cover described three-color LED chip in described groove.
Wherein, the outside surface of described packaging plastic and the planes align at described slot opening place or protrude from the plane at described slot opening place.
Wherein, the respective electrode of described three-color LED chip is connected with described three pad areas respectively by plain conductor or anisotropy conductiving glue.
Wherein, the shape of described pixel region is circular, oval or square.
The beneficial effects of the utility model are: the situation being different from prior art, in LED display of the present utility model, by arranging the pixel region being used for packaging LED chips on circuit boards, thus LED chip directly can be encapsulated on circuit boards, do not need by extra package support packaging LED chips thus, thus more easily realize the little dot spacing of LED display, and be conducive to reducing package support cost.In addition, the respective electrode of three-color LED chip is electrically connected with three pad areas respectively, controls separately, namely can control separately the circuit of LED chip to realize at least two LED chips, is conducive to improving precision.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model LED display one embodiment;
Fig. 2 is in the LED display shown in Fig. 1, the structure for amplifying schematic diagram of pixel region;
Fig. 3 is in another embodiment of the utility model LED display, the structure for amplifying schematic diagram of pixel region;
Fig. 4 is in the another embodiment of the utility model LED display, the schematic cross-section of pixel region;
Fig. 5 is in the another embodiment of the utility model LED display, the structure for amplifying schematic diagram of pixel region.
Embodiment
Below in conjunction with drawings and embodiments, the utility model is described in detail.
Consult Fig. 1 and Fig. 2, in one embodiment of the utility model LED display, LED display comprises circuit board 1 and organizes three-color LED chip 2 more, and three-color LED chip 2 is respectively the red LED chips 21 of display redness, the green LED chip 22 of display green and shows blue LED chip 23.Certainly, three-color LED chip also can be red LED chips, green LED chip and white LED chip, or red LED chips, yellow LED chip and white LED chip.
Circuit board 1 is provided with the integral multiple that multiple pixel region 11, n, m arranged by matrix n*m is 16.Often organize three-color LED chip 2 to be packaged in a pixel region 11.Wherein, be provided with at least three pad areas 111,112,113 in each pixel region 11, the respective electrode of three-color LED chip 2 is electrically connected with three pad areas 111,112,113 respectively, realizes at least two LED chips 2 and controls separately.
Wherein, three-color LED chip 2 is bipolarity LED chip.The positive pole of three-color LED chip 2 all connects pad area 111, and the negative pole of red LED chips 21 connects pad area 112, and blue LED die 22 is connected pad area 113 with the negative pole of green LED chip 23.Wherein, the load that pad area 113 is electrically connected with pad area 112 is not identical, pad area 112 back-end circuit such as, be connected with the resistance that resistance is 1 ohm, pad area 113 back-end circuit is connected with the resistance that resistance is 3 ohm, be less than the electric current of the circuit at green LED chip 22 and blue LED die 23 place with the electric current of the circuit making red LED chips 21 place, thus realize the independent control of red LED chips 21 and green LED chip 22 and blue LED die 23.
Wherein, each electrode (i.e. both positive and negative polarity) of three-color LED chip 2 is electrically connected with corresponding pad area respectively by plain conductor.Plain conductor can be gold thread, aluminum steel or alloy wire etc.Certainly, each electrode of three-color LED chip 2 also can be electrically connected with corresponding pad area by anisotropy conductiving glue, to realize encapsulating without gold thread.
In addition, in present embodiment, by LED chip is directly encapsulated on the circuit card 1, the spacing between pixel region can be made to do less, more easily realize little dot spacing.
Certainly, in other implementation methods, can also be that reference voltage that pad area 112 is connected with pad area 113 is not identical, to make the pressure reduction between the both positive and negative polarity of the pressure reduction between the both positive and negative polarity of red LED chips 112 and green LED chip 22 or blue LED die 23 not identical, to realize the independent control of LED chip.
Consult Fig. 3, in another embodiment of the utility model LED display, the quantity of the pad area in pixel region 31 is six, is pad area 311,312,313,314,315 and 316 respectively.Wherein, three-color LED chip 4 is fixed in pad area 311.Three pad areas 312,313,314 are arranged on the side of pad area 311, and another two pad areas 315,316 are arranged on the opposite side of pad area 311.
Wherein, three-color LED chip 4 is respectively red LED chips 41, green LED chip 42 and blue LED die 43.Red LED chips 41, green LED chip 42 and blue LED die 43 are vertically arranged in order.Certainly, three-color LED chip 4 can also be arranged in order in the horizontal direction.
Wherein, red LED chips 41 is unipolarity LED chip, and it is by can the elargol of electric conductivity be fixed in pad area 311, thus realizes its negative pole and be electrically connected with pad area 311.Green LED chip 42 and blue LED die 43 are bipolarity LED chip, and it is fixed in pad area 311 by insulating gel, and negative pole that is green, blue LED die 42,43 is electrically connected with pad area 315,316 respectively.The positive pole of red LED chips 41 is electrically connected with pad area 312, and the positive pole of green LED chip 42 is electrically connected with pad area 313, and the positive pole of blue LED die 43 is electrically connected with pad area 314.Certainly, in other modes, red LED chips 42 also can be bipolarity LED chip.
By six pad areas 311 ~ 316, realize corresponding LED chip respectively and be connected with driving circuit, and then realize the driving of LED chip.In addition, in present embodiment, the both positive and negative polarity of each LED chip connects different pad areas separately, thus can control separately the electric current of each LED chip, realizes the independent control of each LED chip thus.
Wherein, in present embodiment, the spacing between pixel region 31 is 0.8mm ~ 3.9mm, such as, can be set to 0.8mm, 1.1mm etc.Certainly, utilizing present embodiment LED display, by directly being encapsulated on circuit boards by LED chip, the spacing between pixel region 31 can also be made less, such as, is the Small Distance of 0.5mm.
Wherein, in the embodiment of the utility model LED display, pixel region 31 can be a region in circuit board plane, can also be the groove structure arranged on circuit boards.
As shown in Figure 4, pixel region 31 is arrange groove on the circuit card 1.Below for convenience of explanation, the mark of groove is described as 31.The shape of groove 31 can be circular, oval, square or polygon, or other arbitrary shapes.Three-color LED chip 4 is fixed on the bottom of groove 31.Transparent packaging plastic 5 is filled with, for covering three-color LED chip 4, and as the optical lens of three-color LED chip 4 in groove 31.
Wherein, packaging plastic 5 is epoxy resin, can be clicked and entered in groove 31 by glue certain to form packaging plastic 5. by some glue mode, can also pass through injection moulding (molding) technique and form packaging plastic 5.
Wherein, the outside surface of packaging plastic 5 and the planes align at groove 31 opening place, or, also can be protrude from the plane at groove 31 opening place or the plane lower than groove 31 opening place.
Consult Fig. 5, in the another embodiment of the utility model LED chip, the quantity of the pad area in pixel region 61 is four, is respectively 611,612,613 and 614.Wherein, three-color LED chip 7 is separately fixed in pad area 611, and in word order.Wherein, red LED chips 71 is unipolarity LED chip, and it is fixed in pad area 611 by electric conductivity elargol, to realize the electrical connection of its negative pole and pad area 611.Green, blue LED die 72,73 is bipolarity LED chip, and be fixed in pad area 611 by insulating gel, and the negative pole of green LED chip 72 is electrically connected with pad area 613, blue LED die 73 is electrically connected with pad area 614.The positive pole of three LED chips 71,72,73 is all electrically connected with pad area 612.
LED chip 71 ~ 73 is connected with driving circuit by respective pad district 611 ~ 614, thus realizes the driving of LED chip under the effect of driving circuit.Wherein, the pad area 611,613,614 be connected with the negative pole of corresponding LED chip, it connects load or reference voltage is not identical, to make the electric current flowing through each LED chip not identical, can realize the independent control of each LED chip thus, improves precision.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a LED display, is characterized in that, comprises circuit board and many group three-color LED chips;
Described circuit board is provided with multiple pixel region, often organize described three-color LED chip package in a described pixel region, wherein, at least three pad areas are provided with in each described pixel region, the respective electrode of described three-color LED chip is electrically connected with described three pad areas respectively, realizes at least two described LED chips and controls separately.
2. LED display according to claim 1, is characterized in that,
The quantity of described pad area is six, described three-color LED chip is fixed in one of them pad area, and the negative pole of a LED chip in described three-color LED chip is electrically connected with a described pad area, the negative pole of another two LED chips is electrically connected with two pad areas in all the other five pad areas respectively, the positive pole of described three-color LED chip is electrically connected with residue three pad areas in all the other five pad areas described, respectively to realize the independent control of each described LED chip.
3. LED display according to claim 2, is characterized in that,
Described three-color LED chip is respectively red, green, the blue LED chip of display;
The described LED chip that negative pole is electrically connected with a described pad area is show red unipolarity LED chip, the unipolarity LED chip of described display redness is fixed in a described pad area by elargol, is electrically connected with a described pad area to realize its negative pole;
Described another two LED chips are respectively the green and blue bipolarity LED chip of display, and described display green and blue bipolarity LED chip are fixed in a described pad area by insulating gel.
4. LED display according to claim 3, is characterized in that,
Described display is red, green, blue LED chip are fixed in one of them pad area described along first direction arrangement.
5. LED display according to claim 1, is characterized in that,
The quantity of described pad area is four, described three-color LED chip is fixed in one of them pad area, and the negative pole of a LED chip in described three-color LED chip is electrically connected with a described pad area, the negative pole of another two LED chips is electrically connected with two pad areas in its excess-three pad area respectively, the positive pole of described three-color LED chip is all electrically connected with the residue pad area in described its excess-three pad area, wherein, the load that three pad areas connected with the negative electricity of described three-color LED chip respectively connect or reference voltage not identical, control separately to realize each described LED chip.
6. LED display according to claim 1, is characterized in that,
Spacing between described pixel region is 0.8mm ~ 3.9mm.
7. LED display according to claim 1, is characterized in that,
Described pixel region is be arranged on the groove on described circuit board, is filled with packaging plastic to cover described three-color LED chip in described groove.
8. LED display according to claim 7, is characterized in that,
The outside surface of described packaging plastic and the planes align at described slot opening place or protrude from the plane at described slot opening place.
9. LED display according to claim 1, is characterized in that,
The respective electrode of described three-color LED chip is connected with described three pad areas respectively by plain conductor or anisotropy conductiving glue.
10. LED display according to claim 1, is characterized in that,
The shape of described pixel region is circular, oval or square.
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| CN201520032965.9U CN204496855U (en) | 2015-01-16 | 2015-01-16 | A kind of LED display |
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| CN201520032965.9U CN204496855U (en) | 2015-01-16 | 2015-01-16 | A kind of LED display |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486490A (en) * | 2015-08-31 | 2017-03-08 | 广州万维立视数码科技有限公司 | New LED panel assembly, 3D panel assembly and 3D display screen |
| CN108198520A (en) * | 2017-12-29 | 2018-06-22 | 西安智盛锐芯半导体科技有限公司 | Virtual LED display module and 2 times of frequency displaying methods based on three vitta shape LED chips |
| CN108564890A (en) * | 2017-12-29 | 2018-09-21 | 西安智盛锐芯半导体科技有限公司 | Virtual LED display module based on three vitta shape LED chips and 6 times of frequency displaying methods |
| US10248372B2 (en) | 2013-12-31 | 2019-04-02 | Ultravision Technologies, Llc | Modular display panels |
| US10373535B2 (en) | 2013-12-31 | 2019-08-06 | Ultravision Technologies, Llc | Modular display panel |
| US10706770B2 (en) | 2014-07-16 | 2020-07-07 | Ultravision Technologies, Llc | Display system having module display panel with circuitry for bidirectional communication |
-
2015
- 2015-01-16 CN CN201520032965.9U patent/CN204496855U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10248372B2 (en) | 2013-12-31 | 2019-04-02 | Ultravision Technologies, Llc | Modular display panels |
| US10373535B2 (en) | 2013-12-31 | 2019-08-06 | Ultravision Technologies, Llc | Modular display panel |
| US10380925B2 (en) | 2013-12-31 | 2019-08-13 | Ultravision Technologies, Llc | Modular display panel |
| US10410552B2 (en) | 2013-12-31 | 2019-09-10 | Ultravision Technologies, Llc | Modular display panel |
| US10540917B2 (en) | 2013-12-31 | 2020-01-21 | Ultravision Technologies, Llc | Modular display panel |
| US10871932B2 (en) | 2013-12-31 | 2020-12-22 | Ultravision Technologies, Llc | Modular display panels |
| US10706770B2 (en) | 2014-07-16 | 2020-07-07 | Ultravision Technologies, Llc | Display system having module display panel with circuitry for bidirectional communication |
| CN106486490A (en) * | 2015-08-31 | 2017-03-08 | 广州万维立视数码科技有限公司 | New LED panel assembly, 3D panel assembly and 3D display screen |
| CN108198520A (en) * | 2017-12-29 | 2018-06-22 | 西安智盛锐芯半导体科技有限公司 | Virtual LED display module and 2 times of frequency displaying methods based on three vitta shape LED chips |
| CN108564890A (en) * | 2017-12-29 | 2018-09-21 | 西安智盛锐芯半导体科技有限公司 | Virtual LED display module based on three vitta shape LED chips and 6 times of frequency displaying methods |
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