CN211827958U

CN211827958U - LED lamp bead and LED display screen

Info

Publication number: CN211827958U
Application number: CN202020762636.0U
Authority: CN
Inventors: 陈浩瑜; 聂雪玲; 王勇
Original assignee: Xi'an Qingsong Optoelectronic Technology Co ltd; Guangzhou Shiyuan Electronics Thecnology Co Ltd
Current assignee: Qstech Co Ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-10-30
Anticipated expiration: 2030-05-09

Abstract

The embodiment of the utility model discloses LED lamp pearl and LED display screen. LED lamp pearl includes: at least one LED group comprising one first color LED, one second color LED and two third color LEDs; the connecting line of the geometric centers of the first color LED, the second color LED and the two third color LEDs is a parallelogram, and the first color LED, the second color LED and the third color LED are respectively one of a red LED, a green LED and a blue LED. The utility model discloses the scheme has realized the demonstration of high resolution content.

Description

LED lamp bead and LED display screen

Technical Field

The embodiment of the utility model provides a relate to the display technology, especially relate to a LED lamp pearl and LED display screen.

Background

The existing SMT LED lamp produced by SMT method is usually only a three-in-one surface-mount lamp formed by packaging 1 LED chip of red, blue and green light, which is feasible in general picture display but not suitable for high-resolution content display.

SUMMERY OF THE UTILITY MODEL

The utility model provides a LED lamp pearl and LED display screen to realize the demonstration of high resolution content.

In a first aspect, the embodiment of the utility model provides a LED lamp pearl, include:

at least one LED group comprising one first color LED, one second color LED and two third color LEDs;

the connecting line of the geometric centers of the first color LED, the second color LED and the two third color LEDs is a parallelogram;

the first color LED, the second color LED and the third color LED are respectively one of a red LED, a green LED and a blue LED.

Optionally, the first color LEDs, the second color LEDs and the third color LEDs in the LED group are arranged in a first arrangement manner or a second arrangement manner; wherein the content of the first and second substances,

the first arrangement is as follows: the first color LED and the second color LED are positioned on a first side of the parallelogram, and the two third color LEDs are positioned on a second side of the parallelogram, wherein the first side and the second side are parallel;

the second arrangement mode is as follows: the first color LED and one third color LED are positioned on the first side of the parallelogram, the second color LED and the other third color LED are positioned on the second side of the parallelogram, and the two third color LEDs are not positioned on the same side of the parallelogram.

Optionally, one end point of the second edge is located on the midline of the first edge.

Optionally, the LED lamp bead includes at least two LED groups, and the at least two LED groups are sequentially arranged along a first direction or sequentially arranged along a second direction; wherein the first direction is an extending direction of the first edge and the second edge, and the first direction and the second direction are perpendicular to each other.

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, the LED groups are arranged in a first arrangement manner, and when the at least two LED groups are arranged along a 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 a second direction;

the LED groups are arranged in a second arrangement mode, and when the at least two LED groups are arranged along the first direction, the arrangement sequence of the first color LEDs and the second color LEDs in the adjacent LED groups along the first direction is different.

Optionally, the distance between the LEDs adjacent in the first direction is equal, or the distance between the LED groups adjacent in the second direction is equal to the distance between the first edge and the second edge of the same LED group.

Optionally, the LED lamp bead includes one LED group or two LED groups.

In a second aspect, the embodiment of the utility model provides a still provide a LED display screen, it is a plurality of the utility model discloses arbitrary embodiment LED lamp pearl.

The utility model discloses LED display screen includes at least one LED group, and first color LED and second color LED can constitute with one in two third color LEDs respectively and show the pixel in same LED group, and the LED lamp pearl of this embodiment adopts a small number of LED promptly, can constitute more demonstration pixel, can show more information in the same display area, adopts the light-emitting unit of the same quantity can show more information, realizes the demonstration of high resolution content.

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 view of another LED lamp bead provided in this embodiment;

fig. 12 is a schematic view of another LED lamp bead provided in this embodiment;

FIG. 13 is a schematic diagram of an LED display screen according to an 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.

The embodiment provides an LED lamp bead, fig. 1 is a schematic diagram of an LED lamp bead provided by the embodiment, fig. 2 is a schematic diagram of another LED lamp bead provided by the embodiment, and fig. 3 is a schematic diagram of another LED lamp bead provided by the embodiment. Referring to fig. 1-3, the LED lamp bead includes:

at least one LED group 100, the LED group 100 comprising one first color LED10, one second color LED20, and two third color LEDs 30;

the geometric centers of the first color LED10, the second color LED20, and the two third color LEDs 30 are connected in a parallelogram shape.

Wherein the angle between the sides of the parallelogram may not be equal to 90 degrees. The specific arrangement of the first color LED10, the second color LED20, and the third color LED30 in each LED set 100 may also be varied, for example, as shown in fig. 1, the first color LED10 and the second color LED20 are located on one side of a parallelogram, and two third color LEDs 30 are located on the other side of the parallelogram, and the two sides are parallel to each other. Alternatively, as shown in fig. 2 and 3, the first color LED10 and the second color LED20 are located on one diagonal of the parallelogram, and the two third color LEDs 30 are located on the other diagonal of the parallelogram.

The first color LED10 and the second color LED20 in the same LED group 100 of this embodiment can form a display pixel with one of the two third color LEDs 30, that is, the LED lamp bead of this embodiment adopts a smaller number of LEDs, and can form more display pixels, and can display more information in the same display area, and the same number of light-emitting units can display more information, thereby realizing the display of high-resolution content.

Further, 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. That is, the first color LED10 may be a red LED, the second color LED20 is a green LED, and the third color LED30 is 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.

The following description is made with reference to the specific arrangement of LEDs in the LED lamp bead, with reference to the following specific drawings:

optionally, the first color LED10, the second color LED20, and the third color LED30 in the LED set are arranged in a first arrangement (fig. 1) or a second arrangement (fig. 2 and 3).

Referring to fig. 1, the first arrangement is: the first color LED10 and the second color LED20 are located on a first side 101 of the parallelogram and the two third color LEDs 30 are located on a second side 102 of the parallelogram, wherein the first side 101 and the second side 102 are parallel.

Specifically, the arrangement order of the first color LED10, the second color LED20 and the two third color LEDs 30 is not particularly limited, and may be exemplarily configured such that the two third color LEDs 30 are located at 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 at the left side of the first color LED10 and the second color LED20, according to needs.

Referring to fig. 2 and 3, the second arrangement is: the first color LED10 and one third color LED30 are located on a first side 101 of the parallelogram, the second color LED20 and another third color LED30 are located on a second side 102 of the parallelogram, and the two third color LEDs 30 are not located on the same side of the parallelogram.

Specifically, the two third color LEDs 30 may be located on a diagonal line that is rotated clockwise by a first set angle relative to the first side 101 as shown in fig. 2, or may be located on a diagonal line that is rotated counterclockwise by a second set angle relative to the first side 101 as shown in fig. 3, which is not specifically limited in this embodiment, where both the first set angle and the second set angle are less than ninety degrees.

This embodiment is through setting up two third colour LED30 dispersions on parallelogram's diagonal, and in same LED group 100, first colour LED10 and second colour LED20 are the same with two shape size and the LED mode of arranging that show pixel that two third colour LED30 constitute respectively for each shows pixel's display effect homogeneous phase or close, guarantees to have better display effect. And the LEDs with the same light-emitting color in the LED lamp beads are more dispersed, and when all the LEDs in the LED lamp beads emit light, for example, when the LED lamp beads need to emit white light, the emitted light is better in uniformity.

It is understood that the uniformity of light mixed by the plurality of LEDs of different colors is better by dispersing the LEDs having a higher color temperature ratio in the display, and thus the third color LED30 may be provided as an LED having a higher color temperature ratio, and the third color LED30 may be provided as a green LED.

Alternatively, referring to fig. 1-3, an end point of the second edge 102 is located on the centerline of the first edge 101.

Set up like this for four LED's in the LED group distribution is more even, when making a plurality of LED in same LED group all luminous, for example LED lamp pearl need send white light, and its light homogeneity of sending is better.

In addition, the LED display screen need set up a plurality of LED lamp pearls, and the interval between the adjacent LED lamp pearl is great, when the LED that needs adjacent LED lamp pearl constitutes a plurality of display pixel points jointly, in order to make the display pixel point of constituteing between the adjacent LED lamp pearl close with the display effect of the inside display pixel point of LED lamp pearl, can set up to have great interval between the inside LED of LED lamp pearl, if set up first limit 101 and second limit 102 and have great size, an extreme point through setting up second limit 102 is located the central line on first limit 101, when first limit 101 and second limit 102 have great size, still can guarantee that four LED distributes comparatively evenly in LED group 100.

It should be noted that the present embodiment only illustrates the positional relationship between the first side 101 and the second side 102, and the present embodiment is not limited thereto, and in other embodiments, the positional relationship between the first side 101 and the second side 102 may also be set according to display and space requirements. For example, fig. 4 is a schematic view of another LED lamp bead provided in this embodiment, and referring to fig. 4, a connection line between one end point of the first edge 101 and one end point of the second edge 102 may be set to be perpendicular to the first edge 101 and the second edge 102.

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, and fig. 8 is a schematic view of another LED lamp bead provided in this embodiment. Alternatively, referring to fig. 5-8, the LED lamp bead includes at least two LED groups 100, and the at least two LED groups 100 are sequentially arranged along the second direction r2 (fig. 5 and 6) or sequentially arranged along the first direction r1 (fig. 7 and 8); the first direction r1 is an extending direction of the first side 101 and the second side 102, and the first direction r1 and the second direction r2 are perpendicular to each other.

Specifically, adopt two at least LED group 100 to constitute LED lamp pearl, constitute the lamp pearl for an LED group, it has great area, when making up on the display screen, its and PCB board have bigger area of contact, 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.

In addition, each LED comprises an anode and a cathode, the anode is fixed in potential, different electric signals are input to the cathode to realize display with different brightness, or the cathode is fixed in potential, and different electric 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. By arranging the at least two LED groups 100 in sequence along the first direction r1 or in sequence along the second direction r2, that is, the at least two LED groups 100 are arranged in a column or a row, the data input leads of the LEDs are easier to arrange, and the display effect is prevented from being influenced by the interaction between the leads.

It should be noted that, the embodiment only shows the first direction r1 and the second direction r2 by way of example, and the invention is not limited thereto, and 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.

Alternatively, referring to fig. 5 and 6, the distance D1 between the adjacent LED groups 100 along the second direction r2 is equal to the distance D2 between the first side 101 and the second side 102 in the same LED group 100.

Specifically, referring to fig. 5, in each LED group 100 of the LED lamp bead, the first color LED10 and the second color LED20 located on the first side 101 may form a first display pixel 201 together with a third color LED30, the third color LED30 in one LED group 100 and the first color LED10 and the second color LED20 in the adjacent LED group 100 may form a second display pixel 202, and the distance D1 between the adjacent LED groups 100 along the second direction r2 is equal to the distance D2 between the first side 101 and the second side 102 in the same LED group 100, so that the shape and size of the first display pixel 201 and the second display pixel 202 are the same and the LED distribution is the same, when displaying, the display effects of the first display pixel 201 and the second display pixel 202 are the same or similar, and a better display effect is ensured.

In addition, referring to fig. 6, in each LED group 100 of the LED lamp bead, the third color LED30 and the first color LED10 located on the first side 101 may form a third display pixel 203 together with the second color LED20, the first color LED10 and the third color LED30 in one LED group 100 and the second color LED20 in an adjacent LED group 100 may form a fourth display pixel 204, and the distance D1 between the adjacent LED groups 100 along the second direction r2 is set to be equal to the distance D2 between the first side 101 and the second side 102 in the same LED group 100, so that the size and the LED distribution of the third display pixel 203 and the fourth display pixel 204 are the same, when displaying, the display effects of the third display pixel 203 and the fourth display pixel 204 are the same or similar, and a better display effect is ensured.

In addition, the distance D1 between the adjacent LED groups 100 along the second direction r2 is equal to the distance D2 between the first side 101 and the second side 102 in the same LED group 100, so that the LEDs in the LED lamp bead are more uniformly distributed along the second direction r2, and when all the LEDs of the LED lamp bead emit light, for example, when the LED lamp bead needs to emit white light, the emitted light is more uniform.

Alternatively, referring to fig. 7 and 8, the spacing between adjacent LEDs along the first direction r1 is equal. Set up like this for each LED is more even along first direction r 1's distribution in the LED lamp pearl, when making all LEDs of LED lamp pearl all luminous, for example when LED lamp pearl need send white light, the light homogeneity that its sent is better.

In addition, referring to fig. 7, in each LED group 100 of the LED lamp bead, the first color LED10 and the second color LED20 located on the first side 101 may form a first display pixel 201 together with a third color LED30, the second color LED20 and the third color LED30 in one LED group 100 may form a fifth display pixel 205 together with the first color LED10 in the adjacent LED group 100, and the distance between the adjacent LEDs along the first direction r1 is set to be equal, so that the shape, size and LED distribution of the first display pixel 201 and the fifth display pixel 205 are the same, when displaying, the display effects of the first display pixel 201 and the fifth display pixel 205 are the same or similar, and a better display effect is ensured.

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, and optionally, referring to fig. 9 and fig. 10, when at least two LED groups 100 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. 11 is a schematic view of another LED lamp bead provided in this embodiment, optionally, referring to fig. 11, when the LED groups 100 are arranged in a first arrangement manner, and 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, the first side 101 where the first color LED10 and the second color LED20 are located, and the second side 102 where the third color LED30 is located, the arrangement of the adjacent LED groups 100 is as follows: along the second direction r2, the third color LED30 is located on the second side 102, and the first color LED10 and the second color LED20 are located on the first side 101.

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.

Fig. 12 is a schematic view of another LED lamp bead provided in this embodiment, optionally, referring to fig. 12, when the LED groups 100 are arranged in the second arrangement manner, and 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 along the first direction r1 is different.

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 one LED group 100 or 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 one or two LED groups 100, the fewer LEDs are adopted in the LED lamp beads, and the lower manufacturing process difficulty of the LED lamp beads is guaranteed while the more display pixel points can be formed.

Fig. 13 is a schematic diagram of an LED display screen provided by the embodiment, and this embodiment also provides an LED display screen, and referring to fig. 13, this LED display screen 200 includes a plurality of the utility model discloses arbitrary embodiment LED lamp pearl 300.

The LED display screen of this embodiment includes at least one LED group, and first colour LED and second colour LED can constitute with a third colour LED respectively and show the pixel in same LED group, and the LED lamp pearl of this embodiment adopts less number of LED promptly, can constitute more display pixel, realizes the demonstration of high resolution content.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. 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 with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a LED lamp pearl which characterized in that includes:

2. The LED lamp bead of claim 1, wherein:

the first color LED, the second color LED and the third color LED in the LED group adopt a first arrangement mode or a second arrangement mode; wherein the content of the first and second substances,

3. The LED lamp bead of claim 2, wherein:

an end point of the second edge is located on a midline of the first edge.

4. The LED lamp bead of claim 2, wherein:

the LED lamp beads comprise at least two LED groups, and the at least two LED groups are sequentially arranged along a first direction or sequentially arranged along a second direction; wherein the first direction is an extending direction of the first edge and the second edge, and the first direction and the second direction are perpendicular to each other.

5. The LED lamp bead of claim 4, 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.

6. The LED lamp bead of claim 4, wherein:

the LED groups are arranged in a first arrangement mode, and when the at least two LED groups are arranged along a first direction, the arrangement sequence of a first color LED, a second color LED and two third color LEDs in the adjacent LED groups along a second direction is different;

7. The LED lamp bead of claim 4, wherein:

the distance between the LEDs adjacent along the first direction is equal, or the distance between the LED groups adjacent along the second direction is equal to the distance between the first edge and the second edge in the same LED group.

8. The LED lamp bead according to any one of claims 1-7, wherein:

the LED lamp bead comprises one LED group or two LED groups.

9. An LED display screen, characterized by comprising a plurality of LED lamp beads according to any one of claims 1 to 8.