CN214505489U

CN214505489U - LED display component

Info

Publication number: CN214505489U
Application number: CN202121038588.1U
Authority: CN
Inventors: 陈辰; 宋杰
Original assignee: Ningbo Saifu Electronics Co ltd
Current assignee: Ningbo Saifu Electronics Co ltd
Priority date: 2021-05-16
Filing date: 2021-05-16
Publication date: 2021-10-26
Anticipated expiration: 2031-05-16

Abstract

The present disclosure relates to an LED display member configured of an array of LED display units, wherein each LED display unit includes at least two LED pixel units sharing an N electrode therebetween arranged in a first pixel interval portion having a first pixel interval distance along a first direction between the at least two LED pixel units.

Description

LED display component

Technical Field

The present disclosure relates generally to a display panel member, and more particularly, to an LED display member constituting a display.

Background

In recent years, research institutes and companies of gallium nitride (GaN) such as SONY, SUMITOMO, etc., of saint basbara university, california, usa, have succeeded in producing high-power, high-efficiency blue and green light emitting diodes, laser diodes, etc., on specific GaN semipolar crystal planes. These GaN specific crystal planes have great potential and advantages in high efficiency, low efficiency degradation (efficiency drop) Light Emitting Diodes (LEDs) and high power long wavelength Laser Diodes (LDs). In recent years, with the continuous development of lighting display technology, higher and more comprehensive requirements are put on the aspects of light emitting performance, brightness, power consumption and the like of a light emitting device. In the context of such large environments, Micro-LEDs have come into operation. Micro-LEDs have their own unique advantages as a new generation of display technology, and their structures can be thinned, arrayed and miniaturized due to the small size of the device (on the order of a single pixel micron). Therefore, micro-LEDs have received much attention as a new generation display technology. The semiconductor industry has begun to develop a lot of micro-LED display technology. The display brightness, contrast, service life, stability and the like of the LCD are far superior to those of the LCD display technology.

At present, in an LED display device, the color of each pixel is not pure and the brightness is not high, so that the processing cost is high due to the existence of a large number of electrodes. Therefore, how to simply obtain a large-sized Micro-LED display unit, thereby being capable of greatly reducing process cost and time, is becoming a demand.

Disclosure of Invention

To this end, according to one aspect of the present disclosure, there is provided an LED display member configured of an array of LED display units, wherein each LED display unit includes at least two LED pixel units sharing an N electrode therebetween arranged in a first pixel spacing section having a first pixel spacing distance along a first direction between the at least two LED pixel units.

The LED display member according to the present disclosure, wherein each of the LED pixel units is integrated by first, second and third LED light emitting chips of red, green and blue colors, the LED light emitting chips of the first and second colors in each of the LED pixel units are arranged in a first row at a first interval distance along a first direction, and the LED light emitting chips of the third color are arranged in a second row at a second interval distance along a second direction perpendicular to the first direction from the first row along the first direction.

The LED display member according to the present disclosure, wherein the LED light emitting chip of the third color in each of the LED pixel units is shifted from the LED light emitting chips of the first and second colors by a predetermined offset distance along the first direction.

The LED display member according to the present disclosure, wherein the LED light emitting chips of the third color and the LED light emitting chips of the first and second colors in each of the LED pixel units form an isosceles triangle.

The LED display member according to the present disclosure, wherein the N-electrodes are in a second row in which LED light emitting chips of a third color are located.

The LED display member according to the present disclosure, wherein the at least two LED pixel units are four LED pixel units forming a two-dimensional array, wherein adjacent LED pixel units along the second direction have a second pixel spacing section of a second pixel spacing distance therebetween, and the common N electrode is disposed at an intersection position of the first pixel spacing section and the second pixel spacing section.

The LED display member according to the present disclosure, wherein the first pixel spacing distance and the second pixel spacing distance are equal.

The LED display member according to the present disclosure, wherein the first spacing distance is equal to the second spacing distance.

The LED display member according to the present disclosure, wherein the first spacing distance is equal to a width of the LED light emitting chip and the second spacing distance is equal to a height of the LED light emitting chip.

The LED display member according to the present disclosure, wherein the first pixel spacing distance is equal to a width of the LED light emitting chip.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic view illustrating a principle of an LED display member according to a first exemplary embodiment of the present disclosure.

Fig. 2 is a schematic view illustrating an LED display unit of an LED display member according to a first exemplary embodiment of the present disclosure.

Fig. 3 is a schematic view illustrating an LED display unit of an LED display member according to a second exemplary embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. Unless defined otherwise, all other scientific and technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, a first may also be termed a second, and vice versa, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at …" or "when …" or "in response to a determination", depending on the context.

For a better understanding of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.

Fig. 1 is a schematic view illustrating a principle of an LED display member according to a first exemplary embodiment of the present disclosure. As shown in fig. 1, the LED display member 100 is composed of an array of LED display cells. The plurality of LED display units 110 form an LED display unit array. The shaded portion in fig. 1 is each LED display unit 110. Although there is a space between the adjacent LED display units 110, the space may not be provided. It is noted that each of the LED display units 110 includes at least two LED pixel units, and the at least two LED pixel units 110 share an N electrode therebetween, which is disposed in a first pixel interval portion having a first pixel interval distance along the first direction between the at least two LED pixel units. By commonly using the N electrode at the middle spacing part of a plurality of adjacent LED pixel units, the number of the N electrodes can be obviously reduced, and the complexity of N electrode wiring is reduced.

Fig. 2 is a schematic view illustrating an LED display unit of an LED display member according to a first exemplary embodiment of the present disclosure. As shown in fig. 2, the LED display unit 110 includes two LED pixel units, each of which is formed by integrating red, green, and blue LED light emitting chips, also referred to as first, second, and third color LED light emitting chips. As shown in fig. 2, the LED light emitting chips of the first and second colors in each LED pixel unit are arranged in a first row at first spaced intervals along a first direction, as shown in fig. 2, the LED light emitting chips of the red and green colors are arranged in a first row at first spaced intervals along a horizontal direction, and the LED light emitting chips of the blue color are arranged as the LED light emitting chips of the third color in a second row at second spaced intervals along a second direction perpendicular to the first direction along the second direction. Alternatively, the red and blue LED light emitting chips may be arranged as first and second color LED light emitting chips spaced apart by a first spacing distance along a first direction, and the green LED light emitting chips may be arranged as third color LED light emitting chips along the first direction in a second row spaced apart by a second spacing distance from the first row along a second direction perpendicular to the first direction. By the mode, the three color LED chips of each LED pixel unit are arranged in a triangular shape, so that when the LED chips of the three colors emit light, the fused white light is purer, and the phenomenon of color cast white light is eliminated. In addition, due to the existence of the preset interval between the adjacent LED pixel units, when different colors are presented between the two adjacent pixel units, the color crosstalk between the two adjacent pixel units is weakened, and meanwhile due to the existence of the interval, an arrangement space is provided for the shared N electrode.

In addition, in order to make the relative positions of the three color LED light emitting chips per LED pixel unit more uniform, the LED light emitting chip of the third color in each LED pixel unit is shifted by a predetermined offset distance along the first direction with respect to the LED light emitting chips of the first and second colors. Still further, the LED light emitting chips of the third color and the LED light emitting chips of the first and second colors in each LED pixel unit may be made to form an isosceles triangle. In order to enable the three color LED chips of each LED pixel unit to be arranged in a regular triangle shape, the second spacing distance can be adjusted in the process of depositing and forming the LED chips, so that the three LED chips are arranged in a regular triangle shape.

As shown in fig. 2, the N-electrodes shared by the two LED pixel units in the LED display unit 110 may be arranged in the second row where the LED light emitting chips of the third color are located. Alternatively, the N-electrodes may be arranged in a row where a spacing portion formed by a second spacing distance between the first row and the second row is located, and this arrangement structure can uniformize the distance of the N-electrodes from the LED light emitting chips of the respective colors.

Fig. 3 is a schematic view illustrating an LED display unit of an LED display member according to a second exemplary embodiment of the present disclosure. As shown in fig. 3, the LED display unit 110 includes four LED pixel units, each of which is formed by integrating red, green, and blue LED light emitting chips, also referred to as first, second, and third color LED light emitting chips. The four LED pixel units form a two-dimensional array, two LED pixel units are arranged in each row along a first direction, a first pixel interval part having a first pixel interval distance between the two LED pixel units of each row, two LED pixel units are arranged in each column along a second direction perpendicular to the first direction, and a second pixel interval part having a second pixel interval distance between the two LED pixel units of each column. The common N electrode may be disposed at an intersection of the first pixel spacing section and the second pixel spacing section, or may be selectively disposed at a position in the first pixel spacing section that does not intersect a row where there are two different color LED light emitting chips.

As shown in fig. 3, the LED light emitting chips of the first and second colors in each LED pixel unit are arranged in a first row at first spaced intervals along a first direction, as shown in fig. 3, the LED light emitting chips of red (R) and green (G) are arranged in a first row at first spaced intervals along a horizontal direction, and the LED light emitting chips of blue (B) are arranged as the LED light emitting chips of the third color in a second row at second spaced intervals along a second direction perpendicular to the first direction from the first row along the first direction along the second direction. Alternatively, the red and blue LED light emitting chips may be arranged as first and second color LED light emitting chips spaced apart by a first spacing distance along a first direction, and the green LED light emitting chips may be arranged as third color LED light emitting chips along the first direction in a second row spaced apart by a second spacing distance from the first row along a second direction perpendicular to the first direction. By the mode, the three color LED chips of each LED pixel unit are arranged in a triangular shape, so that when the LED chips of the three colors emit light, the fused white light is purer, and the phenomenon of color cast white light is eliminated. In addition, due to the existence of the preset interval between the adjacent LED pixel units, when different colors are presented between the two adjacent pixel units, the color crosstalk between the two adjacent pixel units is weakened, and meanwhile due to the existence of the interval, an arrangement space is provided for the shared N electrode.

In addition, in order to make the relative positions of the three color LED light emitting chips per LED pixel unit more uniform, the LED light emitting chip of the third color in each LED pixel unit is shifted by a predetermined offset distance along the first direction with respect to the LED light emitting chips of the first and second colors. Still further, the LED light emitting chips of the third color and the LED light emitting chips of the first and second colors in each LED pixel unit may be made to form an isosceles triangle. In order to enable the three color LED chips of each LED pixel unit to be arranged in a regular triangle shape, the second spacing distance can be adjusted in the process of depositing and forming the LED chips, so that the three LED chips are arranged in a regular triangle shape. As shown in fig. 3, the N-electrodes shared by the four LED pixel units in the LED display unit 110 may be arranged in a second row in which the LED light emitting chips of the third color in the two LED pixel units arranged in a row along the first direction are located. Alternatively, the N-electrode may be disposed at the intersection of the first pixel spacing section and the second pixel spacing section in a disposition such that the N-electrode is equidistant from the four LED pixel units.

Returning to fig. 2. As shown in fig. 2, each LED pixel cell has a width dimension Lp, typically three times the LED light emitting chip width dimension Lc, and thus, when the LED light emitting chips of red (R) and green (G) are arranged in the first row at first spaced distance intervals along the horizontal direction, the first spaced distance is Lc 1. A second spaced distance Lc2 in the second direction between a second row of blue (B) LED light emitting chips arranged as third color LED light emitting chips along the first direction and the first row. For manufacturing convenience, the first spacing distance Lc1 is generally equal to the second spacing distance Lc 2. Also for convenience of the manufacturing process, the first spacing distance Lc1 and the second spacing distance Lc2 may be equal to the width dimension Lc of the LED light emitting chip. Alternatively, by adjusting the second separation distance Lc2, the red (R), green (G) and blue (B) LED light emitting chips in one LED pixel unit can form an equilateral triangle with each other.

As shown in fig. 2 and 3, the first pixel spacing distance L1 along the first direction and the second pixel spacing distance L2 along the second direction may be equal between each pixel.

For simplicity of explanation, the methodologies of the present disclosure are depicted and described as a series of acts. However, acts in accordance with this disclosure may occur in various orders and/or concurrently, and with other acts not presented and described herein. Moreover, not all illustrated acts may be required to implement a methodology in accordance with the disclosed subject matter. In addition, those skilled in the art will understand and appreciate that the methodologies could alternatively be represented as a series of interrelated states via a state diagram or events. Additionally, it should be appreciated that the methodologies disclosed in this specification are capable of being stored on an article of manufacture to facilitate transporting and transferring such methodologies to computing devices. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device or memory paging medium.

The word "example" or "exemplary" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" or "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. Rather, use of the word "example" or "exemplary" is intended to present concepts in a concrete fashion. As used in this application, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless specified otherwise, or clear from context, "X includes a or B" is intended to mean any of the natural inclusive permutations. That is, if X comprises A; x comprises B; or X includes A and B, then "X includes A or B" is satisfied under any of the foregoing circumstances. In addition, the articles "a" and "an" as used in this application and the appended claims should generally be construed to mean "one or more" unless specified otherwise or clear from context to be directed to a singular form. Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrase "in one implementation" or "an implementation" in various places throughout this specification are not necessarily all referring to the same implementation.

As used herein, when an element or layer is referred to as being "on" another element or layer, the element or layer may be directly on the other element or layer or intervening elements or layers may be present. In contrast, when an element or layer is referred to as being "directly on" another element or layer, there are no intervening elements or layers present.

Whereas many alterations and modifications of the present disclosure will no doubt become apparent to a person of ordinary skill in the art after having read the foregoing description, it is to be understood that any particular embodiment shown and described by way of illustration is in no way intended. Are considered to be limiting. Therefore, references to details of various embodiments are not intended to limit the scope of the claims, which in themselves recite only those features regarded as the disclosure.

Claims

1. An LED display member is composed of an array of LED display units, wherein each LED display unit includes at least two LED pixel units sharing an N electrode therebetween, the N electrode being disposed in a first pixel spacing section having a first pixel spacing distance along a first direction between the at least two LED pixel units.

2. The LED display member according to claim 1, wherein each of the LED pixel units is integrated by first, second and third LED light emitting chips of red, green and blue colors, the LED light emitting chips of the first and second colors in each of the LED pixel units are arranged in a first row at a first interval distance along a first direction, and the LED light emitting chips of the third color are arranged in a second row at a second interval distance along a second direction perpendicular to the first direction from the first row along the first direction.

3. The LED display member of claim 2, wherein the LED light emitting chips of the third color in each LED pixel cell are offset from the LED light emitting chips of the first and second colors by a predetermined offset distance along the first direction.

4. The LED display member according to claim 3, wherein the LED light emitting chips of the third color and the LED light emitting chips of the first and second colors in each of the LED pixel units form an isosceles triangle.

5. The LED display member of any of claims 1-4, wherein said N electrodes are in a second row of LED light emitting chips of a third color.

6. The LED display member according to any of claims 1-4, wherein the at least two LED pixel units are four LED pixel units forming a two-dimensional array, wherein adjacent LED pixel units along the second direction have a second pixel spacing section with a second pixel spacing distance therebetween, the common N-electrode being arranged at an intersection of the first pixel spacing section and the second pixel spacing section.

7. The LED display assembly of claim 6, wherein the first pixel spacing distance and the second pixel spacing distance are equal.

8. The LED display member of claim 2, wherein the first separation distance is equal to the second separation distance.

9. The LED display member of claim 2, wherein the first spacing distance is equal to a width of the LED light emitting chips and the second spacing distance is equal to a height of the LED light emitting chips.

10. The LED display member of claim 1, wherein the first pixel spacing distance is equal to a width of the LED light emitting chip.