LED display components

Abstract

The present disclosure relates to an LED display component, which is composed of an LED display unit array, wherein each LED display unit includes at least two LED pixel units, and the at least two LED pixel units share an N electrode arranged in a first pixel spacing portion having a first pixel spacing distance along a first direction between the at least two LED pixel units.

Description

Technical Field

[0001] The present disclosure generally relates to a display panel component, and more particularly, to an LED display component constituting a display. Background Art

[0002] In recent years, some gallium nitride (GaN) research institutions and companies such as the University of California, Santa Barbara in the United States and Sony and SUMITOMO in Japan have successfully prepared high-power, high-efficiency blue and green light-emitting diodes and laser diodes on some special GaN semi-polar crystal planes. These special crystal planes of GaN have great potential and advantages in high-efficiency, low-efficiency droop 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 have been put forward for the luminous performance, brightness and power consumption of light-emitting devices. In such a large environment, Micro-LED came into being. As a new generation of display technology, Micro-LED has its own unique advantages. Due to the small size of the device (single pixel is micron-level), its structure can be thin-filmed, arrayed and miniaturized. Therefore, as a new generation of display technology, micro-LED has received widespread attention. The semiconductor industry has begun to develop micro-LED display technology in large quantities. Its display brightness, contrast, life, stability, etc. are far superior to LCD display technology.

[0003] At present, in LED display devices, each pixel is usually not pure in color and has low brightness. Due to the presence of a large number of electrodes, the processing cost is high. Therefore, how to simply obtain a large-sized Micro-LED display unit, which can greatly reduce the process cost and time, has become a need. Summary of the invention

[0004] To this end, according to one aspect of the present disclosure, there is provided an LED display component, which is composed of an LED display unit array, wherein each LED display unit includes at least two LED pixel units, and the at least two LED pixel units share an N electrode arranged in a first pixel spacing portion having a first pixel spacing distance along a first direction between the at least two LED pixel units.

[0005] According to the LED display component disclosed in the present invention, each LED pixel unit is integrated with the first, second and third LED light-emitting chips of red, green and blue, the LED light-emitting chips of the first and second colors in each LED pixel unit are arranged in a first row along a first direction at a first spacing distance, and the LED light-emitting chips of the third color are arranged in a second row along the first direction at a second spacing distance from the first row along a second direction perpendicular to the first direction.

[0006] According to the LED display member of the present disclosure, the LED light emitting chip of the third color in each LED pixel unit is offset by a predetermined offset distance along the first direction relative to the LED light emitting chips of the first and second colors.

[0007] According to the LED display member of the present disclosure, the LED light emitting chip of the third color in each LED pixel unit forms an isosceles triangle with the LED light emitting chips of the first and second colors.

[0008] According to the LED display component of the present disclosure, the N electrode is located in the second row where the LED light emitting chip of the third color is located.

[0009] According to the LED display component disclosed herein, the at least two LED pixel units are four LED pixel units forming a two-dimensional array, wherein a second pixel spacing portion with a second pixel spacing distance is provided between adjacent LED pixel units along a second direction, and the common N-electrode is arranged at the intersection of the first pixel spacing portion and the second pixel spacing portion.

[0010] According to the LED display member of the present disclosure, the first pixel spacing distance and the second pixel spacing distance are equal.

[0011] According to the LED display member of the present disclosure, the first spacing distance is equal to the second spacing distance.

[0012] According to the LED display member of the present disclosure, the first spacing distance is equal to the width of the LED light emitting chip and the second spacing distance is equal to the height of the LED light emitting chip.

[0013] According to the LED display component of the present disclosure, the first pixel spacing distance is equal to the width of the LED light emitting chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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 present disclosure.

[0015] Figure 1is a schematic diagram showing a principle of an LED display member according to a first exemplary embodiment of the present disclosure.

[0016] Figure 2 is a schematic diagram illustrating an LED display unit of an LED display member according to a first exemplary embodiment of the present disclosure.

[0017] Figure 3 is a schematic diagram illustrating an LED display unit of an LED display member according to a second exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0018] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0019] The terms used in this disclosure are only for the purpose of describing specific embodiments and are not intended to limit the disclosure. Unless otherwise defined, all other scientific and technical terms used herein have the same meanings as those of ordinary skill in the art to which the invention belongs. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0020] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first may also be referred to as the second, and vice versa, without departing from the scope of the present disclosure. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0021] In order to enable those skilled in the art to better understand the present disclosure, the present disclosure is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Figure 1 1 is a schematic diagram showing the principle of an LED display component according to a first exemplary embodiment of the present disclosure. Figure 1 As shown in FIG. 1 , the LED display component is composed of an LED display unit array. A plurality of LED display units 110 form an LED display unit array. Figure 1The shaded portion in the figure is each LED display unit 110. Although there are intervals between adjacent LED display units 110, no intervals may be provided. It should be noted that each LED display unit 110 includes at least two LED pixel units, and the at least two LED pixel units share an N electrode arranged in a first pixel spacing portion having a first pixel spacing distance along a first direction between the at least two LED pixel units. By using a common N electrode in the intermediate spacing portion of a plurality of adjacent LED pixel units, the number of N electrodes can be significantly reduced, and the complexity of N electrode wiring can be reduced.

[0023] Figure 2 1 is a schematic diagram showing an LED display unit of an LED display member according to a first exemplary embodiment of the present disclosure. Figure 2 As shown, the LED display unit 110 includes two LED pixel units, each of which is composed of red, green and blue LED light-emitting chips, also known as the first, second and third color LED light-emitting chips integrated. Figure 2 As shown, the LED light emitting chips of the first and second colors in each LED pixel unit are arranged in a first row along a first direction at a first spacing distance, as shown in FIG. Figure 2 As shown in FIG. 1 , the red and green LED light-emitting chips are arranged in a first row along a horizontal direction according to a first spacing distance, and the blue LED light-emitting chip is arranged in a second row along a second direction perpendicular to the first direction as a third color LED light-emitting chip. Alternatively, the red and blue LED light-emitting chips can be arranged in a first row along a first direction according to a first spacing distance as the first and second color LED light-emitting chips, and the green LED light-emitting chip can be arranged in a second row along a second direction perpendicular to the first direction as the third color LED light-emitting chip. In this way, the three color LED chips of each LED pixel unit are arranged in a triangle, so that when the three color LED chips are all emitting light, the fused white light is purer, eliminating the phenomenon of color cast white light. In addition, since there is a predetermined interval between adjacent LED pixel units, when different colors are presented between two adjacent pixel units, the color crosstalk between the two is weakened, and due to the existence of the interval, a space for arranging the shared N electrode is provided.

[0024] In addition, in order to arrange the three color LED light-emitting chips of each LED pixel unit more evenly relative to each other, the LED light-emitting chip of the third color in each LED pixel unit is offset by a predetermined offset distance relative to the LED light-emitting chips of the first and second colors along the first direction. Furthermore, the LED light-emitting chip of the third color in each LED pixel unit can form an isosceles triangle with the LED light-emitting chips of the first and second colors. In order to arrange the three color LED chips of each LED pixel unit in an equilateral triangle, the second spacing distance can be adjusted during the deposition process of forming the LED chips so that the three form an equilateral triangle arrangement.

[0025] like Figure 2 As shown, the N electrode shared by the two LED pixel units in the LED display unit 110 can be arranged in the second row where the LED light emitting chip of the third color is located. Alternatively, the N electrode can be arranged in the row where the spacing portion formed by the second spacing distance between the first row and the second row is located. This deployment structure can make the distance between the N electrode and the LED light emitting chips of each color uniform.

[0026] Figure 3 2 is a schematic diagram showing an LED display unit of an LED display member according to a second exemplary embodiment of the present disclosure. Figure 3 As shown, the LED display unit 110 includes four LED pixel units, each of which is composed of red, green and blue LED light-emitting chips, also referred to as the integration of the 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 the first direction, and the two LED pixel units in each row have a first pixel spacing portion with a first pixel spacing distance between them, and two LED pixel units are arranged in each column along the second direction perpendicular to the first direction, and the two LED pixel units in each column have a second pixel spacing portion with a second pixel spacing distance between them. The common N electrode can be arranged at the intersection of the first pixel spacing portion and the second pixel spacing portion, and can also be selectively arranged in the first pixel spacing portion at a position that does not intersect with a row of LED light-emitting chips with two different colors.

[0027] like Figure 3 As shown, the LED light emitting chips of the first and second colors in each LED pixel unit are arranged in a first row along a first direction at a first spacing distance, as shown in FIG. Figure 3As shown in FIG. 1 , the red (R) and green (G) LED light-emitting chips are arranged in a first row along a horizontal direction at a first spacing distance, while the blue (B) LED light-emitting chip is arranged in a second row along a second direction perpendicular to the first direction as a third color LED light-emitting chip. Alternatively, the red and blue LED light-emitting chips can be arranged in a first row along a first direction at a first spacing distance as the first and second color LED light-emitting chips, while the green LED light-emitting chip can be arranged in a second row along a second direction perpendicular to the first direction as the third color LED light-emitting chip. In this way, the three color LED chips of each LED pixel unit are arranged in a triangle, so that when the three color LED chips are all emitting light, the fused white light is purer, eliminating the phenomenon of color cast white light. In addition, since there is a predetermined interval between adjacent LED pixel units, when different colors are presented between two adjacent pixel units, the color crosstalk between the two is weakened, and due to the existence of the interval, a space for arranging the shared N electrode is provided.

[0028] In addition, in order to arrange the three color LED light-emitting chips of each LED pixel unit more evenly relative to each other, the LED light-emitting chip of the third color in each LED pixel unit is offset by a predetermined offset distance along the first direction relative to the LED light-emitting chips of the first and second colors. Furthermore, the LED light-emitting chip of the third color in each LED pixel unit can form an isosceles triangle with the LED light-emitting chips of the first and second colors. In order to arrange the three color LED chips of each LED pixel unit in an equilateral triangle, the second spacing distance can be adjusted during the process of depositing the LED chips so that the three form an equilateral triangle arrangement. Figure 3 As shown, the N electrode shared by the four LED pixel units in the LED display unit 110 can be arranged in the second row where the LED light emitting chip of the third color in the two LED pixel units arranged in a row along the first direction is located. Alternatively, the N electrode can be arranged at the intersection of the first pixel spacing part and the second pixel spacing part. This arrangement structure can make the distance between the N electrode and the four LED pixel units equal.

[0029] return Figure 2 .like Figure 2As shown, the width dimension of each LED pixel unit is Lp, and its width is usually three times the width dimension Lc of the LED light-emitting chip. Therefore, when the red (R) and green (G) LED light-emitting chips are arranged in the first row along the horizontal direction according to the first spacing distance, the first spacing distance is Lc1. The second spacing distance between the blue (B) LED light-emitting chip as the third color LED light-emitting chip arranged along the first direction and the first row along the second direction is Lc2. For the convenience of manufacturing, the first spacing distance Lc1 is usually equal to the second spacing distance Lc2. Similarly, for the convenience of process technology, the first spacing distance Lc1 and the second spacing distance Lc2 can be equal to the width dimension Lc of the LED light-emitting chip. Optionally, by adjusting the second spacing distance to Lc2, the red (R), green (G) and blue (B) LED light-emitting chips in an LED pixel unit can form an equilateral triangle with each other.

[0030] like Figure 2 and 3 As shown, between each pixel, a first pixel spacing distance L1 along the first direction and a second pixel spacing distance L2 along the second direction may be equal.

[0031] For simplicity of explanation, the method of the present disclosure is depicted and described as a series of actions. However, the actions according to the present disclosure may occur in various orders and / or simultaneously, and have other actions not presented and described herein. In addition, all the actions shown may not be required to implement the method according to the disclosed subject matter. In addition, those skilled in the art will understand and appreciate that the method may alternatively be represented as a series of interrelated states via a state diagram or an event. In addition, it should be understood that the method disclosed in this specification can be stored on an article of manufacture, so that such a method can be transmitted and transferred to a computing device. The term "article of manufacture" used herein is intended to cover a computer program accessible from any computer-readable device or memory page medium.

[0032] The words "example" or "exemplary" are used herein to mean serving as an example, instance or illustration. Any aspect or design described herein as "example" or "exemplary" is not necessarily to be construed as being preferred or advantageous over other aspects or designs. On the contrary, the use of the words "example" or "exemplary" is intended to present concepts in a specific way. As used in this application, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless otherwise specified or clear from the context, "X includes A or B" is intended to mean any natural inclusive arrangement. That is, if X includes A; X includes B; or X includes A and B, then "X includes A or B" is satisfied in any of the above cases. In addition, the articles "a" and "an" used in this application and the appended claims should generally be interpreted as meaning "one or more" unless otherwise specified or clear from the context to point to a singular form. Throughout the specification, references to "one embodiment" or "an embodiment" mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "one implementation" or "an implementation" in various places throughout this specification are not necessarily all referring to the same implementation.

[0033] 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. Conversely, when an element or layer is referred to as being "directly on" another element or layer, there are no intervening elements or layers.

[0034] Although many changes and modifications to the present disclosure will no doubt become apparent to those skilled in the art after reading the foregoing description, it should be understood that it is by no means intended that any particular embodiment shown and described in illustration be considered limiting. Therefore, reference to details of various embodiments is not intended to limit the scope of the claims, which themselves recite only those features regarded as the present disclosure.

Claims

1. An LED display component, consisting of an LED display unit array, wherein each LED display unit includes at least two LED pixel units, and the at least two LED pixel units share an N electrode arranged in a first pixel spacing portion having a first pixel spacing distance along a first direction between the at least two LED pixel units, wherein each LED pixel unit is integrated with first, second and third LED light-emitting chips of red, green and blue, and the LED light-emitting chips of the first and second colors in each LED pixel unit are arranged in a first row along the first direction at a first spacing distance, and the LED light-emitting chips of the third color are arranged in a second row along the first direction at a second spacing distance from the first row along a second direction perpendicular to the first direction, wherein the N electrode is in the second row where the LED light-emitting chips of the third color are located, and the first pixel spacing distance is equal to the width of the LED light-emitting chip. 2 . The LED display component according to claim 1 , wherein the LED light emitting chip of the third color in each LED pixel unit forms an isosceles triangle with the LED light emitting chips of the first and second colors.

3. The LED display component according to any one of claims 1-2, wherein the at least two LED pixel units are four LED pixel units forming a two-dimensional array, wherein there is a second pixel spacing part with a second pixel spacing distance between adjacent LED pixel units along the second direction, and the common N electrode is arranged at the intersection of the first pixel spacing part and the second pixel spacing part. 4 . The LED display member according to claim 3 , wherein the first pixel spacing distance and the second pixel spacing distance are equal. The LED display member according to claim 1 , wherein the first spacing distance is equal to the second spacing distance. 6 . The LED display component according to claim 1 , 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.

Images