CN111383552A - LED lamp bead and LED display screen - Google Patents
LED lamp bead and LED display screen Download PDFInfo
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- CN111383552A CN111383552A CN202010388281.8A CN202010388281A CN111383552A CN 111383552 A CN111383552 A CN 111383552A CN 202010388281 A CN202010388281 A CN 202010388281A CN 111383552 A CN111383552 A CN 111383552A
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- 239000011324 bead Substances 0.000 title claims abstract description 57
- 239000011159 matrix material Substances 0.000 claims abstract description 7
- 239000011049 pearl Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000003491 array Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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Abstract
The embodiment of the invention discloses an LED lamp bead and an LED display screen. This LED lamp pearl includes: at least two LED groups arranged in an array, each of the LED groups comprising one first color LED, one second color LED and two third color LEDs arranged in a 2 x 2 matrix. The scheme of the embodiment of the invention realizes the display of high-resolution content.
Description
Technical Field
The embodiment of the invention relates to a display technology, in particular to an LED lamp bead and an LED display screen.
Background
The existing SMT LED lamp produced by SMT method is usually only a surface-mounted lamp formed by packaging 1 LED chip of red, blue and green light together, which is feasible in general picture display of LED, but is not suitable for display of high resolution content.
Disclosure of Invention
The invention provides an LED lamp bead and an LED display screen, which are used for displaying high-resolution content.
In a first aspect, an embodiment of the present invention provides an LED lamp bead, including:
at least two LED groups arranged in an array, each of the LED groups comprising one first color LED, one second color LED and two third color LEDs arranged in a 2 x 2 matrix.
Optionally, the at least two LED groups are sequentially arranged along a first direction or sequentially arranged along a second direction, and the first direction and the second direction are mutually crossed.
Optionally, the first color LEDs and the second color LEDs in the LED group are sequentially arranged along a first direction, and the two third color LEDs are sequentially arranged along the first direction.
Optionally, when the at least two LED groups are arranged along the second direction, the arrangement order of the first color LED and the second color LED in the adjacent LED groups along the first direction is different.
Optionally, when the at least two LED groups are arranged along the first direction, the arrangement order of the first color LED and the second color LED in the adjacent LED groups is different from the arrangement order of the two third color LEDs along the second direction.
Optionally, the first color LED and the third color LED in the LED group are sequentially arranged along the first direction, and the other third color LED and the second color LED are sequentially arranged along the first direction, and are two the third color LED is not adjacent to each other along the first direction and the second direction.
Optionally, the arrangement order of the first color LEDs and the second color LEDs in adjacent LED groups along the first direction is different.
Optionally, the third color LED is a green LED. .
Optionally, the LED lamp bead includes two LED groups.
In a second aspect, an embodiment of the present invention further provides an LED display screen, including a plurality of LED lamp beads according to any embodiment of the present invention.
In the embodiment of the invention, the first color LED and the second color LED in the same LED group can respectively form a display pixel point with one of the two third color LEDs, and the first color LED and the second color LED in one LED group can also form a display pixel point with the third color LED in the adjacent LED group, namely the LED lamp bead of the embodiment adopts a small number of LEDs to form more display pixel points, more information can be displayed in the same display area, more information can be displayed by adopting the same number of light-emitting units, and the display of high-resolution content can be realized.
Drawings
Fig. 1 is a schematic diagram of an LED lamp bead provided in this embodiment;
fig. 2 is a schematic view of another LED lamp bead provided in this embodiment;
fig. 3 is a schematic view of another LED lamp bead provided in this embodiment;
fig. 4 is a schematic view of another LED lamp bead provided in this embodiment;
fig. 5 is a schematic view of another LED lamp bead provided in this embodiment;
fig. 6 is a schematic view of another LED lamp bead provided in this embodiment;
fig. 7 is a schematic view of another LED lamp bead provided in this embodiment;
fig. 8 is a schematic view of another LED lamp bead provided in this embodiment;
fig. 9 is a schematic view of another LED lamp bead provided in this embodiment;
fig. 10 is a schematic view of another LED lamp bead provided in this embodiment;
FIG. 11 is a schematic diagram of an LED display screen provided by the embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic diagram of an LED lamp bead provided in this embodiment, fig. 2 is a schematic diagram of another LED lamp bead provided in this embodiment, and referring to fig. 1 and fig. 2, this embodiment provides an LED lamp bead, and this lamp bead includes:
at least two LED groups 100 arranged in an array, each LED group 100 comprising one first color LED10, one second color LED20, and two third color LEDs 30 arranged in a 2 x 2 matrix.
The at least two LED groups 100 may be arranged in an m × 1 array, a 1 × n array, or an m × n array, where m and n are positive integers greater than or equal to 2, and this embodiment is not limited in particular.
In addition, the specific arrangement of the first color LED10, the second color LED20 and the third color LED30 in each LED group 100 may be various, for example, as shown in fig. 1 and 2, the first color LED10 and the second color LED20 are arranged along the first direction r1, and two third color LEDs 30 are arranged along the first direction r 1. It is also possible that the first color LED10 and the second color LED20 are arranged along the second direction r2, and the two third color LEDs 30 are arranged along the second direction r 2. Two third LEDs 30 may also be distributed on the diagonal of the 2 x 2 matrix. The first direction r1 and the second direction r2 intersect with each other, that is, the first direction r1 and the second direction r2 are not parallel, for example, the first direction r1 and the second direction r2 may be perpendicular to each other.
It should be noted that, the first direction r1 and the second direction r2 are only shown in the present embodiment by way of example, and not limiting the invention, in practical applications, the first direction r1 and the second direction r2 may be interchanged, for example, the first direction r1 is a row direction, the second direction r2 is a column direction, or the first direction r1 is a column direction, and the second direction r2 is a row direction.
First color LED10 and second color LED20 can constitute the display pixel point with one in two third color LED30 respectively in the same LED group 100 of this embodiment, four LEDs can constitute two display pixel points in the same LED group promptly, first color LED10 and second color LED20 also can constitute the display pixel point with third color LED30 in adjacent LED group 100 in an LED group 100, the LED lamp pearl of this embodiment adopts less number LED promptly, can constitute more display pixel points, show more information in the same display area, adopt the luminescence unit of the same quantity to show more information, realize the demonstration of high resolution content.
In addition, this embodiment adopts two at least LED groups 100 to constitute LED lamp pearl, and for a LED group constitution lamp pearl, it has great area, and when making up on the display screen, it has bigger area of contact with the PCB board, and the reliability is higher after the combination, can promote the manufacturing quality of display screen. And one LED lamp pearl contains two at least LED groups, and the LED lamp pearl that an LED display screen adopted still less, can promote the production efficiency of display screen, and the aspect of packaging technology is more convenient simultaneously, can reduce the manufacturing cost of display screen. And because the interval between the different LED lamp pearls is great in the display screen, constitute an LED lamp pearl with two at least LED group 100, for constituting a plurality of LED lamp pearls, its shared area in the display screen of combination is littleer, is favorable to promoting the resolution ratio of display screen.
Fig. 3 is a schematic view of another LED lamp bead provided in this embodiment, and optionally, referring to fig. 1 to fig. 3, at least two LED groups 100 are sequentially arranged along a first direction r1 (fig. 3) or sequentially arranged along a second direction r2 (fig. 1 and fig. 2).
Specifically, each LED includes an anode and a cathode, the anode potential is fixed, different electrical signals are input to the cathode to realize display with different brightness, or the cathode potential is fixed, and different electrical signals are input to the anode to realize display with different brightness. When a plurality of LEDs are packaged into an LED lamp bead, the wiring of anode signal lines and cathode signal lines of the LEDs needs to be considered, the electrodes of the LEDs, which are input with fixed potentials, are usually connected together, and each LED on the other pole is provided with a data input lead. In the present embodiment, at least two LED groups 100 are arranged in sequence along the first direction r1 or in sequence along the second direction r2, that is, at least two LED groups 100 are arranged in a column or a row, so that the data input leads of the LEDs are easier to be arranged, and the display effect is prevented from being influenced by the interaction between the leads.
Alternatively, referring to fig. 1 to 3, the first color LED10 and the second color LED20 in the LED group 100 are sequentially arranged along the first direction r1, and the two third color LEDs 30 are sequentially arranged along the first direction r 1.
Specifically, the arrangement order of the first color LED10, the second color LED20 and the two third color LEDs 30 along the second direction r2 is not particularly limited, and may be exemplarily configured such that the two third color LEDs 30 are located on the right side of the first color LED10 and the second color LED20 in fig. 1, or may be configured such that the two third color LEDs 30 are located on the left side of the first color LED10 and the second color LED20 in fig. 2, according to needs.
Fig. 4 is a schematic view of another LED lamp bead provided in this embodiment, and optionally, referring to fig. 4, when at least two LED groups are arranged along the second direction r2, the arrangement order of the first color LED10 and the second color LED20 in adjacent LED groups 100 along the first direction r1 is different. That is, in one LED group 100, the first color LED10 and the second color LED20 are arranged in the order of the first color LED10 and the second color LED20 in the first direction r1, and in the adjacent LED group 100, the first color LED10 and the second color LED20 are arranged in the order of the first color LED20 and the second color LED10 in the first direction r 1.
Set up like this for first color LED10, second color LED20 and third color LED30 appear in turn in the border that LED lamp pearl extends along second direction r2, when avoiding a plurality of LED lamp pearl arrays to arrange the display screen, the border that extends along second direction r2 appears the LED of a certain colour too much and the various limit of this colour appears, promotes display effect.
Fig. 5 is a schematic view of another LED lamp bead provided in this embodiment, optionally, referring to fig. 5, when at least two LED groups 100 are arranged along the first direction r1, the arrangement order of the first color LED10 and the second color LED20 in adjacent LED groups 100 is different from the arrangement order of the two third color LEDs 30 along the second direction r 2. That is, if one LED group 100 is arranged: along the second direction r2, first, the columns (rows) where the first color LED10 and the second color LED20 are located and arranged along the first direction r1, and then the columns (rows) where the two third color LEDs 30 are located and arranged along the first direction r1, the arrangement manner of the LED groups 100 adjacent to the columns is as follows: along the second direction r2, there are first two columns (rows) arranged along the first direction r1 where the third color LEDs 30 are located, and then there are columns (rows) arranged along the first direction r1 where the first color LEDs 10 and the second color LEDs 20 are located.
Set up like this for first color LED10, second color LED20 and third color LED30 appear in turn in the border that LED lamp pearl extends along first direction r1, when avoiding a plurality of LED lamp pearl arrays to arrange the display screen, the border that extends along first direction r1 appears the various limit of this colour for the LED of single colour, promotes the display effect.
It should be noted that fig. 1-5 exemplarily show various forms of LED lamp beads when two third-color LEDs 30 in one LED group 100 are sequentially arranged along the first direction r1, and other arrangement manners of the LEDs in the LED group 100 are described below with reference to the drawings.
Fig. 6 is a schematic view of another LED lamp bead provided in this embodiment, fig. 7 is a schematic view of another LED lamp bead provided in this embodiment, and fig. 8 is a schematic view of another LED lamp bead provided in this embodiment. Referring to fig. 6 to 8, alternatively, the first color LED10 and the one third color LED30 in the LED group 100 are sequentially arranged along the first direction r1, the other third color LED30 and the second color LED20 are sequentially arranged along the first direction, and the two third color LEDs 30 are not adjacent to each other along the first direction r1 and the second direction r 2. I.e. two third color LEDs 30 are located on the diagonal of the matrix.
Specifically, the two third color LEDs 30 may be located on a diagonal line rotated counterclockwise by a set angle with respect to the second direction r2 as shown in fig. 6 and 8, or may be located on a diagonal line rotated clockwise by a set angle with respect to the second direction r2 as shown in fig. 7, which is not limited in this embodiment. In the present embodiment, by disposing the two third color LEDs 30 dispersed on the diagonal line of the matrix, when four LEDs in the LED group 100 emit light, for example, when the LED group 100 needs to emit white light, the emitted light is more uniform.
It is understood that the LEDs with higher color temperature ratio can make the uniformity of the light mixed by the LEDs with different colors better by dispersing the LEDs with higher color temperature ratio during the display, and therefore, the third color LED can be set to be the LED with higher color temperature ratio, and the third color LED can be set to be the green LED for example.
Fig. 9 is a schematic view of another LED lamp bead provided in this embodiment, and fig. 10 is a schematic view of another LED lamp bead provided in this embodiment. Referring to fig. 9 and 10, alternatively, the first color LED10 and the second color LED20 in the adjacent LED groups 100 are arranged in a different order in the first direction r 1. That is, in one LED group 100, the first color LED10 and the second color LED20 are arranged in the order of the first color LED10 and the second color LED20 in the first direction r1, and in the adjacent LED group 100, the first color LED10 and the second color LED20 are arranged in the order of the first color LED20 and the second color LED10 in the first direction r 1.
Specifically, referring to fig. 9, when the LED groups 100 are arranged along the second direction r2, the arrangement order of the first color LED10 and the second color LED20 in the adjacent LED groups 100 along the first direction r1 is different, so that the first color LED10, the second color LED20, and the third color LED30 alternately appear in the edge where the LED beads extend along the second direction r2, and when a plurality of LED bead arrays are arranged in the display screen, the edge where the LED beads extend along the second direction r2 has too many LEDs of a certain color and a color edge of the color appears, thereby improving the display effect.
Referring to fig. 10, when the LED groups 100 are arranged along the first direction r1, the arrangement order of the first color LED10 and the second color LED20 in the adjacent LED groups 100 along the first direction r1 is different, so that the first color LED10, the second color LED20 and the third color LED30 appear alternately in the edge where the LED beads extend along the first direction r1, and when a plurality of LED bead arrays are arranged on the display screen, the edge where a certain color LED appears along the first direction r1 is too many to appear a color edge of the color, thereby improving the display effect.
Alternatively, the first color LED10, the second color LED20, and the third color LED30 are one of a red LED, a green LED, and a blue LED, respectively.
Specifically, the first color LED10 may be a red LED, the second color LED20 may be a green LED, and the third color LED30 may be a blue LED. The first color LED10 may be a red LED, the second color LED20 is a blue LED, and the third color LED30 is a green LED. The first color LED10 may be a green LED, the second color LED20 a blue LED, and the third color LED30 a red LED. The first color LED10 may be a green LED, the second color LED20 a red LED, and the third color LED30 a blue LED. The first color LED10 may be a blue LED, the second color LED20 a red LED, and the third color LED30 a green LED. The first color LED10 may be a blue LED, the second color LED20 a green LED, and the third color LED30 a red LED.
Optionally, the third color LED30 is a green LED. The shared color temperature proportion of the green LED is larger when the general LED lamp bead displays, and two green LEDs are arranged in one LED group 100, so that the LEDs in one LED group 100 all emit light, for example, when the LED lamp bead emits white light, the emitted white light uniformity is better, and the display effect of the LED lamp bead is better.
Further, first color LED10 and second color LED10 may be one of a red LED and a blue LED, respectively. That is, the third color LED30 is a green LED, the first color LED10 is a red LED, and the second color LED20 is a blue LED; alternatively, the third color LED30 is a green LED, the first color LED10 is a blue LED, and the second color LED20 is a red LED. Optionally, the LED lamp bead includes two LED groups 100. Specifically, the more the number of LEDs in the LED lamp beads is, the greater the difficulty of packaging and wiring is, the LED lamp beads comprise two LED groups, 100 LED groups with fewer number are adopted in the LED lamp beads, more display pixel points can be formed, and meanwhile the lower manufacturing process difficulty of the LED lamp beads is guaranteed.
Fig. 11 is a schematic diagram of an LED display screen provided in an embodiment, and an LED display screen is further provided in this embodiment, and referring to fig. 11, the LED display screen 200 includes a plurality of LED lamp beads 300 according to any embodiment of the present invention.
The LED lamp pearl 300 that LED display screen 200 of this embodiment adopted includes two at least LED groups, first color LED and second color LED can constitute with one in two third color LED respectively in the same LED group and show the pixel, first color LED10 and second color LED also can constitute with the third color LED30 in the adjacent LED group and show the pixel, the LED lamp pearl of this embodiment adopts less number LED promptly, can constitute more display pixel, realize the demonstration of high resolution content.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The utility model provides a LED lamp pearl which characterized in that includes:
at least two LED groups arranged in an array, each of the LED groups comprising one first color LED, one second color LED and two third color LEDs arranged in a 2 x 2 matrix.
2. The LED lamp bead of claim 1, wherein:
the at least two LED groups are sequentially arranged along a first direction or sequentially arranged along a second direction, and the first direction and the second direction are mutually crossed.
3. The LED lamp bead of claim 2, wherein:
the first color LEDs and the second color LEDs in the LED group are sequentially arranged along a first direction, and the two third color LEDs are sequentially arranged along the first direction.
4. The LED lamp bead of claim 3, wherein:
when the at least two LED groups are arranged along the second direction, the arrangement sequence of the first color LED and the second color LED along the first direction in the adjacent LED groups is different.
5. The LED lamp bead of claim 3, wherein:
when the at least two LED groups are arranged along the first direction, the arrangement sequence of the first color LED, the second color LED and the two third color LEDs in the adjacent LED groups along the second direction is different.
6. The LED lamp bead of claim 2, wherein:
first color LED and a third color LED arrange along first direction in proper order in the LED group, and another third color LED and second color LED arrange along first direction in proper order, and two third color LED is all not adjacent along first direction and second direction.
7. The LED lamp bead of claim 6, wherein:
the arrangement sequence of the first color LEDs and the second color LEDs in the adjacent LED groups along the first direction is different.
8. The LED lamp bead according to any one of claims 1-7, wherein:
the third color LED is a green LED.
9. The LED lamp bead according to any one of claims 1-7, wherein:
the LED lamp bead comprises two LED groups.
10. An LED display screen, characterized by comprising a plurality of LED lamp beads according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010388281.8A CN111383552A (en) | 2020-05-09 | 2020-05-09 | LED lamp bead and LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010388281.8A CN111383552A (en) | 2020-05-09 | 2020-05-09 | LED lamp bead and LED display screen |
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| Publication Number | Publication Date |
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| CN111383552A true CN111383552A (en) | 2020-07-07 |
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| CN202010388281.8A Pending CN111383552A (en) | 2020-05-09 | 2020-05-09 | LED lamp bead and LED display screen |
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| KR20190126664A (en) * | 2018-05-02 | 2019-11-12 | 엘지디스플레이 주식회사 | Display device using subpixel rendering and image processing method thereof |
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| JP2001292454A (en) * | 2000-04-06 | 2001-10-19 | Fuji Photo Film Co Ltd | Image processing method and unit, and recording medium |
| CN1896840A (en) * | 2005-07-11 | 2007-01-17 | 三星电机株式会社 | Surface light source and backlight unit having the same |
| CN101118340A (en) * | 2006-07-06 | 2008-02-06 | 亿光电子工业股份有限公司 | Configuring matrix device of primitive colours LED |
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