Inorganic Light-Emitting Diode Display

Abstract

To provide an inorganic light-emitting diode (LED) display.SOLUTION: An inorganic light-emitting device includes: a substrate; and a plurality of green chips, plurality of red chips and plurality of blue chips that are periodically arrayed in the substrate. The number of green chips are greater than that of red chips, and the number of green chips are greater than that of blue chips. In a first direction, a minimum interval Psub_g between adjacent green chips is smaller than a minimum interval Psub_r between adjacent red chips, and the minimum interval Psub_g between the adjacent green chips is smaller than a minimum distance Psub_b between adjacent blue chips.SELECTED DRAWING: Figure 3A

Description

[Technical Field]

[0001] The present invention relates to an inorganic light emitting diode display, and more particularly to a subpixel array structure of an inorganic light emitting diode display. [Background technology]

[0002] With the development of display technology, the performance requirements for display panels in the current market are moving in the direction of high resolution, high brightness, low power consumption, etc. However, as the resolution of the display panel increases, the number of sub-pixels in the display panel also increases to display at high resolution, which increases the manufacturing cost of the display panel. In order to reduce the manufacturing cost of the display panel and improve the image quality, a display device may use a special sub-pixel arrangement and combine it with an algorithm to improve the color resolution of the display panel.

[0003] Compared to the RGB stripe arrangement of conventional displays, the pentile-type subpixel arrangement is widely considered for organic light-emitting diode (OLED) display applications. Increasing the areas of the red and blue subpixels reduces current density, extending the lifetime issues associated with the red and blue materials, and expanding the light-emitting areas of both colors. However, because the light-emitting area limits current density, higher currents cannot guarantee the brightness of both colors, and the subpixel arrangement versatility is reduced. Furthermore, conventional liquid crystal displays (LCDs) or organic light-emitting diodes (OLEDs) have a relatively large aperture ratio, which increases the difficulty of display maintenance. Therefore, there is a need to improve display devices to have properties such as a larger current density operating range, greater subpixel arrangement versatility, and a lower aperture ratio, thereby further improving color resolution, improving image quality, and reducing maintenance difficulties. Summary of the Invention

[0004] In some embodiments of the present disclosure, an inorganic light-emitting diode (LED) display includes: a substrate; and a plurality of green chips, a plurality of red chips, and a plurality of blue chips periodically arranged on the substrate, wherein the number of the green chips is greater than the number of the red chips, the number of the green chips is greater than the number of the blue chips, and a minimum spacing P between adjacent green chips in a first direction is sub_g is the minimum spacing P between adjacent red chips sub_r The minimum spacing P between adjacent green chips is smaller than sub_g is the minimum spacing P between adjacent blue chips sub_b To provide an inorganic light emitting diode display that is smaller than [Brief explanation of the drawings]

[0005] The following detailed description of exemplary embodiments of the present disclosure is provided with reference to the accompanying drawings. It should be noted that, in accordance with standard industry practice, features are not drawn to scale. In fact, the dimensions of elements may be arbitrarily increased or decreased to clearly illustrate the features and advantages of exemplary embodiments of the present disclosure. [Figure 1] 1 is a schematic cross-sectional view showing an inorganic light emitting diode display according to an embodiment of the present invention; [Figure 2] 1 is a schematic diagram illustrating a sub-pixel arrangement structure of an inorganic light-emitting diode display according to an embodiment of the present invention; [Figure 3A] 1 is a schematic diagram illustrating a sub-pixel arrangement structure of a minimal repeating unit in an inorganic light-emitting diode display according to some embodiments of the present invention. [Figure 3B] 1 is a schematic diagram illustrating a sub-pixel arrangement structure of a minimal repeating unit in an inorganic light-emitting diode display according to some embodiments of the present invention. [Figure 4A] FIG. 2 is a schematic diagram illustrating a sub-pixel arrangement structure of a minimal repeating unit in an inorganic light-emitting diode display according to various embodiments of the present disclosure. [Figure 4B] FIG. 2 is a schematic diagram illustrating a sub-pixel arrangement structure of a minimal repeating unit in an inorganic light-emitting diode display according to various embodiments of the present disclosure. [Figure 5] FIG. 2 is a schematic diagram illustrating a sub-pixel arrangement structure of a minimal repeating unit in an inorganic light-emitting diode display according to various embodiments of the present disclosure. [Figure 6A] FIG. 2 is a schematic diagram illustrating a sub-pixel arrangement structure of a minimal repeating unit in an inorganic light-emitting diode display according to various embodiments of the present disclosure. [Figure 6B] FIG. 2 is a schematic diagram illustrating a sub-pixel arrangement structure of a minimal repeating unit in an inorganic light-emitting diode display according to various embodiments of the present disclosure. [Figure 6C] FIG. 2 is a schematic diagram illustrating a sub-pixel arrangement structure of a minimal repeating unit in an inorganic light-emitting diode display according to various embodiments of the present disclosure. [Figure 7A] FIG. 10 is a diagram showing an image displayed by computer simulation of a subpixel array structure according to an embodiment of the present disclosure. [Figure 7B] FIG. 10 is a diagram showing an image displayed by computer simulation of a subpixel array structure according to an embodiment of the present disclosure. [Figure 7C] FIG. 10 is a diagram showing an image displayed by computer simulation of a subpixel array structure according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0006] Light-emitting devices and methods for forming the same according to embodiments of the present disclosure are described below. It should be noted that the embodiments of the present disclosure provide various suitable inventive concepts and can be implemented in a wide variety of specific contexts. The specific embodiments disclosed are used only to illustrate how to make and use the invention in specific ways and are not used to limit the scope of the invention. Furthermore, the same reference numerals are used in the drawings and descriptions of the embodiments of the present disclosure to indicate the same or similar components.

[0007] As used herein, terms such as "about," "around," and "approximately" generally mean within 20%, preferably within 10%, and more preferably within 5%, 3%, 2%, 1%, or 0.5% of a given value or range. Note that numbers provided herein are approximate numbers, i.e., unless "about," "around," or "approximately" is specified, "about," "around," or "approximately" can be implicitly included.

[0008] In some embodiments of the present disclosure, an inorganic light-emitting diode display includes red inorganic light-emitting diode chips (hereinafter referred to as red chips), blue inorganic light-emitting diode chips (hereinafter referred to as blue chips), and the largest number of green inorganic light-emitting diode chips (hereinafter referred to as green chips). As a feature of embodiments of the present disclosure, the number of green chips is greater than the number of red chips and the number of blue chips. Subpixels (subpixels are the smallest units for displaying an image, e.g., green chips) used in conventional displays generally use an RGB stripe arrangement, with the same number of RGB chips used to form a complete pixel. In contrast, in displays according to embodiments of the present disclosure, increasing the number of green chips and adjusting the minimum spacing between chips of different colors can further improve resolution and image quality.

[0009] FIG. 1 is a schematic cross-sectional view illustrating an inorganic light-emitting diode display 10 according to an embodiment of the present invention. In FIG. 1, the inorganic light-emitting diode display 10 includes a substrate 100 and a plurality of light-emitting diode chips 102 spaced apart from one another in a two-dimensional array on the substrate 100. For simplicity, only three light-emitting diode chips 102 are shown in the figure, but the present disclosure is not limited thereto. Each light-emitting diode chip 102 has a first electrode 110a (e.g., a positive electrode) and a second electrode 110b (e.g., a negative electrode). In some embodiments, the polarities of the first electrode 110a and the second electrode 110b may be set according to the type of light-emitting diode chip 102. For example, in some embodiments, the first electrode 110a may be a negative electrode, and the second electrode 110b may be a positive electrode. The first electrode 110a and the second electrode 110b are provided on the same side (which may be referred to as the back side) of the light-emitting diode chip 102, which is closer to the substrate 100. For example, in some embodiments, the side of the light-emitting diode chip 102 away from the substrate 100 is the light-emitting side (which may be referred to as the front side), and the first electrode 110a and the second electrode 110b are disposed on the side opposite the light-emitting side of the light-emitting diode chip 102. In some embodiments, the substrate 100 may be, but is not limited to, a printed circuit board (PCB), a thin film transistor glass (TFT glass), a complementary metal oxide semiconductor (CMOS) substrate, or other suitable materials. The light-emitting diode chips 102 include a green chip 102g, a red chip 102r, and a blue chip 102b. In some embodiments, the material of the light-emitting diode chip 102 may include, but is not limited to, an inorganic semiconductor material, such as a III-V compound, a II-VI compound, or other suitable material.

[0010] In some embodiments, the material of the first electrode 110a and the second electrode 110b may include a metal or a metal alloy. For example, the metal material of the first electrode 110a and the second electrode 110b may include, but is not limited to, copper (Cu), aluminum (Al), indium (In), tin (Sn), gold (Au), platinum (Pt), zinc (Zn), silver (Ag), titanium (Ti), nickel (Ni), or a combination thereof.

[0011] 2 is a schematic diagram showing a subpixel arrangement structure of the inorganic light-emitting diode display 10 of FIG. 1. In FIG. 2, a substrate 100 is provided with green chips 102g, red chips 102r, and blue chips 102b periodically arranged. In some embodiments, as shown in FIG. 2, the light-emitting diode chips 102 are arranged extending along a first direction D1 and a second direction D2 perpendicular to the first direction D1. Because the human eye is relatively sensitive to green wavelengths, reducing the spacing of green can effectively improve the human eye's ability to see denser subpixel information, the minimum spacing P between two adjacent green chips 102g in the first direction D1 is set to 1 / 2. sub_g The minimum spacing P between two adjacent red chips 102r is sub_r The minimum spacing P between two adjacent green chips 102g is smaller than sub_g The minimum spacing P between two adjacent blue chips 102b is sub_b This sub-pixel arrangement structure can improve color resolution, thereby providing better image quality with fewer chips and reducing costs.

[0012] Since the human eye is mainly driven by the coloring mechanism and the visual limit mechanism for color images, the coloring and light mixing effects can be achieved by adjusting the minimum spacing between adjacent chips. For example, the following coloring mechanisms are used: 15CPD≦min{f(P sub_r ),f(P sub_b )}≦30CPD and the following visual limit mechanisms: 30CPD≦f(P sub_g )≦60CPD In order to simultaneously satisfy the following relations:

[0013]

number

[0014]

number

[0015] As shown in FIG. 2 , in some embodiments, a plurality of green chips 102g, at least one red chip 102r, and at least one blue chip 102b form a minimal repeating unit (one point unit) 104. The minimal repeating unit 104 is rectangular and is arranged in a two-dimensionally repeated manner to form the inorganic light-emitting diode display 10. Note that in other embodiments, the minimal repeating unit 104 may have a rectangular, triangular, polygonal, circular, or other shape, but the present disclosure is not limited thereto. In each minimal repeating unit 104, the number of green chips 102g is the greatest, i.e., the number G of green chips 102g is greater than the number R of red chips 102r, and the number G of green chips 102g is greater than the number B of blue chips 102b. In some embodiments, the number R of red chips 102r in a minimal repeating unit 104 is greater than the number B of blue chips 102b. In some embodiments, the number R of red chips 102r in a minimal repeating unit 104 is the same as the number B of blue chips 102b. Since the ratio of the LED chips 102 of each color in the minimal repeating unit 104 is not 1:1:1 (RGB), which is different from the conventional chip arrangement method, in application, an algorithm is used to recalculate the image in advance based on the ratio of the chips, and then the image information is transmitted to the LED chips 102 in the minimal repeating unit 104 based on the final calculation result to display the complete image. In some embodiments, the algorithm may adopt a common sub-pixel rendering technique.

[0016] 2, in some embodiments, each light emitting diode chip 102 in the minimal repeating unit 104 has substantially the same size. For example, light emitting diode chips 102 of different colors have substantially the same planar area. In some embodiments, the minimal repeating unit 104 has a unit area S p Each of the green chip 102g, the red chip 102r, and the blue chip 102b has a light-emitting area S g , S r , S b In some embodiments, the light emitting areas of the different color chips are the same, e.g., S g =S r =S b Therefore, compared to conventional Pentile OLEDs that use different sub-pixel sizes to achieve display functions, there is no need to additionally adjust different current densities according to differences in luminous efficiency of organic light emitters, and the lifespan of sub-pixels of each color is equivalent, reducing design difficulties.

[0017] In some embodiments, the inorganic light emitting diode display 10 has an aperture ratio A<30%, as shown in Figure 2. The aperture ratio A is defined as the ratio of the total light emitting area of ​​the light emitting diode chip 102 within the minimum repeating unit 104, and is expressed by the following relationship:

[0018]

number

[0019] 3A-3B are schematic diagrams illustrating an arrangement of light-emitting diode chips 102 in a minimal repeating unit 104 according to some embodiments of the present invention. In some embodiments, as shown in FIG. 3A, the minimal repeating unit 104 includes multiple subunits 106, such as a first subunit 106a and a second subunit 106b. The first subunit 106a (dashed box) is composed of a portion of the green chip 102g, and the second subunit 106b (dotted box) is composed of the remaining green chip 102g, as well as the red chip 102r and the blue chip 102b. Note that, as shown in FIG. 3A, the subunits 106 cover the center of the minimal repeating unit 104.

[0020] In some embodiments, the center point of the first subunit may be offset from the chip 102 of the second subunit, as shown in FIG. 3A. In some embodiments, the center point of the second subunit may be offset from the chip 102 of the first subunit. In other embodiments, the center point of the first subunit may overlap the chip 102 of the second subunit, or the center point of the second subunit may overlap the chip 102 of the first subunit, as shown in FIG. 3B. Here, six green chips 102g make up a pentagonal first subunit 106a (dashed lines), and one red chip and one blue chip make up a rectangular second subunit 106b (dotted lines), where the green chips 102g are approximately uniformly distributed within the minimal repeating unit 104. Also, across the display, the red chips 102r and blue chips 102b are each uniformly distributed relative to the centers of the green chips 102g, which have a larger number of perimeters. 3A, in which the center point of the first subunit 106a is offset from the chip 102 of the second subunit 106b, in FIG. 3B, the red chip 102r, the blue chip 102b, and the green chip 102g are not relatively displaced (not offset). This allows the red chip 102r and the blue chip 102b to more uniformly color the surrounding green chip 102g, thereby improving image resolution and image quality. The first subunit 106a and the second subunit 106b have overlapping patterns, and the overlapping patterns include the center point of the first subunit 106a. This not only improves resolution but also image quality.

[0021] 4A-4B illustrate examples in which the ratio of the number of red, green, and blue chips (RGB) in a minimal repeating unit according to various embodiments of the present disclosure is 1:2:1. First, as shown in FIG. 4A, in some embodiments, a minimal repeating unit 104 includes two green chips, one red chip, and one blue chip. The two green chips are arranged to form a rectangular first subunit 106a (dashed lines), and the one red chip and one blue chip are arranged to form a rectangular second subunit 106b (dotted lines), with the overlapping patterns of the first subunit 106a and the second subunit 106b including the center point of the first subunit 106a. In this embodiment, in addition to improving color resolution, as shown in FIG. 4A, since each red chip has the same distance as its surrounding adjacent red chips (L1=L2), the red chip 102r can uniformly color the surrounding green chips 102g and can uniformly increase the image quality in the first direction D1 and the second direction D2.

[0022] 4B, in some embodiments, the minimal repeating unit 104 includes four green chips, two red chips, and two blue chips. The four green chips are arranged to form a first subunit 106a of a parallelogram, and the two red chips and two blue chips are arranged to form a second subunit 106b of a parallelogram, with each red chip having a different distance from its neighboring red chips (L1' ≠ L2'). Because the distances in the first direction D1 and the second direction D2 are different and the image quality is not equally affected in both directions, combining algorithmic calculations can further enhance image quality in a single direction and improve color resolution.

[0023] FIG. 5 illustrates an example in which the ratio of red, green, and blue chips (RGB) in a minimal repeating unit 104 is 1:3:1, according to various embodiments of the present disclosure. In some embodiments, the minimal repeating unit 104 includes three green chips, one red chip, and one blue chip. The three green chips are arranged to form a triangular first subunit 106a (dashed line), and the one red chip and one blue chip are arranged to form a rectangular second subunit 106b (dotted line). As shown in FIG. 5, the overlapping pattern of the first subunit 106a and the second subunit 106b includes the center point of the first subunit 106a, so that the first subunit 106a and the second subunit 106b are distributed approximately at the center of the minimal repeating unit 104, allowing the red chip 102r and the blue chip 102b to uniformly color the surrounding green chip 102g. This can improve color resolution and image quality.

[0024] In some embodiments, minimal repeating units 104 may not be adjacent to each other but may be staggered in rows and columns within inorganic light emitting diode display 10. By adjusting the spacing between minimal repeating units 104, the minimum spacing P between adjacent green chips 102g in the first direction may be adjusted. sub_g are substantially the same, the color resolution can be improved, and the image quality can be improved.

[0025] 6A-6C illustrate an example in which the ratio of the number of red, green, and blue chips (RGB) in a minimal repeating unit 104 is 1:4:1, according to various embodiments of the present disclosure. First, as shown in FIG. 6A, in some embodiments, the minimal repeating unit 104 is kite-shaped and is staggered in rows and columns to form the inorganic light emitting diode display 10. The minimal repeating unit 104 includes four green chips, one red chip, and one blue chip. The four green chips are arranged to form a diamond-shaped first subunit 106a (dashed lines), and the one red chip and one blue chip are arranged to form a rectangular second subunit 106b (dotted lines). 6A, the overlapping pattern of the first subunit 106a and the second subunit 106b includes the center point of the first subunit 106a, so that the first subunit 106a and the second subunit 106b are distributed approximately at the center of the minimal repeating unit 104, and the red chip 102r and the blue chip 102b can be uniformly colored with the surrounding green chip 102g, thereby improving color resolution and image quality.

[0026] 6B, in some embodiments, minimal repeating unit 104 includes eight green chips, two red chips, and two blue chips, where four green chips are arranged to form a rectangular first subunit 106a (dashed line), two red chips and two blue chips are arranged to form a rectangular second subunit 106b (dotted line), and the remaining four green chips are arranged to form a rectangular third subunit 106c (dashed-dotted line), and the subunits (106a, 106b, 106c) overlap each other, thereby improving color resolution and image quality.

[0027] As shown in Figure 6C, in some embodiments, a minimal repeating unit 104 includes four green chips, one red chip, and one blue chip. As shown in Figure 6C, the four green chips are arranged to form a rectangular first subunit 106a, and the one red chip and one blue chip are arranged to form a rectangular second subunit 106b, with the first subunit 106a and the second subunit 106b being distributed approximately at the center of the minimal repeating unit 104. Note that the minimal repeating units 104 are adjacent and staggered in rows and columns within the inorganic light emitting diode display 10, thereby improving color resolution and image quality.

[0028] 7A to 7C are computer-simulated diagrams illustrating the difference between an embodiment of the present disclosure and a conventional display chip arrangement. FIGS. 7A and 7C are computer-simulated images of subpixels formed in a conventional RGB stripe arrangement, with the difference being that the image resolution of FIG. 7C is twice that of FIG. 7A. FIG. 7B is a computer-simulated image of subpixels formed in a red, green, and blue chip (RGB) ratio of 1:2:1 (the embodiment shown in FIG. 4A). Comparing FIG. 7B with FIG. 7A, it can be seen that the resolution of FIG. 7B is higher than that of FIG. 7A. Furthermore, the embodiment of FIG. 7B of the present disclosure can achieve twice the resolution (FIG. 7C) of a conventional RGB stripe arrangement by simply adding one green chip to the minimal repeating unit 104, thereby improving the quality of delicate images.

[0029] Although the present disclosure generally describes subpixel arrangement structures of inorganic light-emitting diode displays, other subpixel arrangement structures may be used. For example, different types of inorganic light-emitting diode chips may be used, inorganic light-emitting diode chips with different light-emitting areas may be used, or fewer or additional green chips, red chips, or blue chips may be used. Furthermore, the relationship between the minimum spacing between green chips and the minimum spacing between red chips or blue chips may be adjusted to form an inorganic light-emitting diode display according to design needs.

[0030] It should be noted that the scope of the present invention is not limited to a technical solution consisting of a specific combination of the above technical features, but includes other technical solutions consisting of any combination of the above technical features or their equivalent features. The above embodiments can be arbitrarily combined to form new embodiments, and new embodiments formed by all combinations are within the scope of the present invention.

[0031] The arrangement of subpixels in a display according to the present disclosure can improve image resolution and image quality by utilizing the fact that the human eye is more sensitive to the green band and providing a display with a majority of green chips, depending on the display design requirements. For example, a display may be divided into minimal repeating units arranged parallel to one another and / or staggered, with red chips, blue chips, and the most numerous green chips arranged within each minimal repeating unit. The arrangement of chips within a minimal repeating unit may be such that the most numerous green chips are approximately uniformly distributed within the minimal repeating unit, and the red chips and blue chips are approximately distributed near the average center position of all green chips within the display. For example, a minimal repeating unit may include a plurality of subunits broadly divided into two types: first-type subunits and second-type subunits. The first-type subunits include at least two single-color chips, such as, but not limited to, two green chips or more than two green chips. In some embodiments, a first-type subunit may include a plurality of first-type subunits, such as two or more first-type subunits. The second type subunit includes at least two different color chips, for example, one red chip and one blue chip, and in some embodiments, the second type subunit may include one red chip, one blue chip, and two green chips. By installing the most green chips in the display and adjusting the minimum spacing between the green chips, the image resolution can be improved, the image quality can be improved, and the chip usage can be reduced, reducing costs.

[0032] Although several embodiments of the present invention and their advantages have been described in detail, various modifications, substitutions, and variations are possible without departing from the spirit and scope of the present invention, as defined by the scope of protection of the present invention. For example, a person of ordinary skill in the art to which the present invention pertains will readily understand that many of the components, functions, steps, and materials described herein can be modified without departing from the scope of the present invention. Furthermore, the scope of the present specification is not limited to the specific embodiments of the processes, machines, manufacture, compositions of matter, methods, and steps described herein. A person of ordinary skill in the art to which the present invention pertains will readily understand from the present specification that any currently or future-developed process, machine, manufacture, composition of matter, method, or step can be used in accordance with the embodiments of the present invention as long as it performs substantially the same function or achieves substantially the same result as the corresponding embodiment described herein. Therefore, the scope of protection of the present invention includes the above-described processes, machines, manufacture, compositions of matter, methods, and steps. [Explanation of symbols]

[0033] 10: Display 100: Substrate 102: Light-emitting diode chip 102g: Green chips 102r: Red tip 102b: Blue chip 104:Minimum repeating unit 106: Subunit 106a: first subunit 106b: second subunit 106c: third subunit D1, D2: Direction L1, L2, L1', L2': Distance P sub_r , P sub_g , P sub_b :Minimum spacing

Claims

1. 1. An inorganic light emitting diode (LED) display, comprising: a first subunit including four first light emitting chips arranged to form a first parallelogram, the four first light emitting chips being located at four corners of the first parallelogram, and the first parallelogram completely covering the four first light emitting chips; a second subunit configured by four second light emitting chips arranged to form a second parallelogram, the four second light emitting chips being located at four corners of the second parallelogram, respectively, and the second parallelogram completely covering the four second light emitting chips; the first parallelogram and the second parallelogram overlap each other to form an overlapping region, and the overlapping region includes at least one first light-emitting chip among the four first light-emitting chips and at least one second light-emitting chip among the four second light-emitting chips; the four first light-emitting chips and the four second light-emitting chips collectively include a plurality of green chips, a plurality of red chips, and a plurality of blue chips, the number of the green chips being greater than the number of the red chips, and the number of the green chips being greater than the number of the blue chips; the overlapping region does not include any light-emitting chips other than the four first light-emitting chips and the four second light-emitting chips; any one of the four first light-emitting chips and any one of the four second light-emitting chips are not aligned in a horizontal direction; The inorganic light-emitting diode display, wherein the four first light-emitting chips and the four second light-emitting chips are aligned with each other in a vertical direction, respectively.

2. 10. The inorganic light-emitting diode display of claim 1, wherein the four second light-emitting chips do not include a green chip.

3. 10. The inorganic light-emitting diode display of claim 1, wherein the four first light-emitting chips are all green chips.

4. The inorganic light-emitting diode display of claim 1 , wherein there is no light-emitting chip between any two of the four first light-emitting chips that are adjacent in the horizontal direction.

5. The inorganic light-emitting diode display of claim 1 , wherein there is no light-emitting chip between any two of the four second light-emitting chips adjacent in the horizontal direction.

6. An inorganic light emitting diode (LED) display, comprising: a first subunit including four first light emitting chips arranged to form a first parallelogram, the four first light emitting chips being located at four corners of the first parallelogram, and the first parallelogram completely covering the four first light emitting chips; a second subunit configured by four second light emitting chips arranged to form a second parallelogram, the four second light emitting chips being located at four corners of the second parallelogram, respectively, and the second parallelogram completely covering the four second light emitting chips; the first parallelogram and the second parallelogram overlap each other to form an overlapping region, and the overlapping region includes at least one first light-emitting chip among the four first light-emitting chips and at least one second light-emitting chip among the four second light-emitting chips; the four first light-emitting chips and the four second light-emitting chips collectively include a plurality of green chips, a plurality of red chips, and a plurality of blue chips, the number of the green chips being greater than the number of the red chips, and the number of the green chips being greater than the number of the blue chips; the overlapping region does not include any light-emitting chips other than the four first light-emitting chips and the four second light-emitting chips; any one of the four first light-emitting chips and any one of the four second light-emitting chips are not aligned in a horizontal direction; an inorganic light-emitting diode display, wherein the at least one first light-emitting chip among the four first light-emitting chips and the at least one second light-emitting chip among the four second light-emitting chips in the overlapping region are aligned with each other in a vertical direction;

7. the at least one first light-emitting chip among the four first light-emitting chips is a green chip; 7. The inorganic light-emitting diode display of claim 6, wherein the at least one second light-emitting chip among the four second light-emitting chips is a blue chip.

8. 10. The inorganic light-emitting diode display of claim 1, wherein the four second light-emitting chips are two blue chips and two red chips.

9. 10. The inorganic light emitting diode display of claim 1, wherein no light emitting chip is present between the first light emitting chip and the second light emitting chip that are aligned with each other in the vertical direction.

Images