CN219143708U

CN219143708U - LED display screen of row-column bidirectional virtual pixel

Info

Publication number: CN219143708U
Application number: CN202222825406.6U
Authority: CN
Inventors: 关长明; 肖华勇; 张奇; 何昆鹏; 李选中; 王勇; 吴涵渠
Original assignee: Shenzhen Aoto Electronics Co Ltd
Current assignee: Shenzhen Aoto Electronics Co Ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-06-06
Anticipated expiration: 2032-10-25

Abstract

The utility model relates to the technical field of LED display, and discloses an LED display screen of a row-column bidirectional virtual pixel, which comprises the following components: the array lamp comprises a plurality of lamp beads which are arranged in a matrix, wherein each lamp bead comprises a first tube core, a second tube core, a third tube core and a fourth tube core, each adjacent lamp bead comprises a pixel formed by the first tube core, the second tube core, the third tube core and the fourth tube core, each tube core is multiplexed to obtain 2 adjacent and different columns, each row is multiplexed to obtain 2 adjacent and different rows, and multiplexing is realized in the row direction and the column direction simultaneously, so that the space is saved.

Description

LED display screen of row-column bidirectional virtual pixel

Technical Field

The utility model relates to the technical field of LED display, in particular to an LED display screen with row and column bidirectional virtual pixels.

Background

With the increasing maturity of the LED display screen technology, the application field becomes wider and wider, and the functions become more and more diverse.

Although the dot spacing of the LED display screen is developed to be less than P0.9 at present, the requirement of most indoor watching is met. In practice, however, manufacturers and customers still have a need for higher densities, very small pitches. The visual graininess is reduced, the screen view angle is enlarged, the LED display screen is suitable for being watched at a shorter distance, and the craving is never lost, but exists all the time. COB technology reforms the structure of lamp pearl, makes the product become exquisite durable, but also has the problem that can not neglect, and technology is complicated, and the price is expensive, and product cycle is long. The small lamp beads are used for manufacturing products with smaller point spacing, so that the small lamp bead pins cannot be firmly welded, the yield is reduced, and the products are fragile and easy to damage.

The conventional dummy pixel scheme only achieves multiplexing of the dies in the row direction, and does not take advantage of the dummy pixels to the greatest extent.

Disclosure of Invention

Based on this, it is necessary to provide an LED display screen that realizes multiplexing of row-column bidirectional virtual pixels in both row direction and column direction to save space.

In a first aspect, an embodiment of the present utility model provides an LED display screen for a row-column bidirectional virtual pixel, including: and each lamp bead comprises a first tube core, a second tube core, a third tube core and a fourth tube core, wherein each adjacent first tube core, second tube core, third tube core and fourth tube core form a pixel, each tube core is multiplexed to obtain 2 adjacent and different columns, and each row is multiplexed to obtain 2 adjacent and different rows.

In some embodiments, the common ends of two adjacent columns of dies are connected.

In some embodiments, the remaining two dies of the first light panel and the remaining two dies of the second light panel are strobed to make up one complete pixel.

In some embodiments, the first die, the second die, the third die, and the fourth die are arranged in a 2x2 matrix.

In some embodiments, the 2x2 matrix is square or rectangular.

In some embodiments, the LED display screen is scanned by selecting rows according to a multiplexing scanning rule

In some embodiments, the first die is controlled by a first drive I C.

In some embodiments, the second die is controlled by a second drive I C.

In some embodiments, the third die is controlled by a third drive I C.

In some embodiments, the fourth die is controlled by a fourth drive I C.

Compared with the prior art, the utility model has the beneficial effects that: different from the situation of the prior art, the LED display screen of the row-column bidirectional virtual pixel provided by the embodiment of the utility model comprises a plurality of lamp beads which are arranged in a matrix, wherein each lamp bead comprises a first tube core, a second tube core, a third tube core and a fourth tube core, each adjacent first tube core, second tube core, third tube core and fourth tube core form a pixel, each tube core is multiplexed, 2 adjacent and different columns are obtained, each row is multiplexed, and 2 adjacent and different rows are obtained, and multiplexing is realized simultaneously in the row direction and the column direction, so that the space is saved.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to scale, unless expressly stated otherwise.

FIG. 1 is a schematic diagram of an arrangement of multiple dies provided in one embodiment of the utility model;

fig. 2 is a schematic table of a line tube scanning manner provided in one embodiment of the present utility model.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

In addition, the technical features mentioned in the different embodiments of the utility model described below can be combined with one another as long as they do not conflict with one another.

Referring to fig. 1 to 2, an embodiment of the present utility model provides an LED display screen with row-column bidirectional virtual pixels, including: a plurality of light beads 100 arranged in a matrix, each of the light beads including a first die, a second die, a third die, and a fourth die. In the embodiment of the present application, the first die may be, for example, the green die 1, the second die may be the red die, the third die may be the blue die, and the fourth die may be the green die 2. And the first die, the second die, the third die and the fourth die which are adjacent to each other form a pixel. Illustratively, as shown in fig. 1, V31 is the first die, i.e., green die 1; v32 is the second die, i.e., the red die; v67 is the third die, i.e., the blue die; v68 is the fourth die, green die 2. The 4 dies V31, V32, V67, V68 constitute one pixel 1. Accordingly, V67, V68, V103, V104 are respectively a blue die, a green die 1, a green die 2, and a red die, and these 4 dies may also constitute one pixel 2, and each pixel needs to include two green dies. In other embodiments, the fourth core may be replaced with colors other than RGB to control the color temperature of the display screen, and the color gamut may be expanded.

In some embodiments, the first die, the second die, the third die, and the fourth die are arranged in a 2x2 matrix. The 2x2 matrix is square or rectangular.

Further, for the row direction, the 4 columns of dies connected are defined by green die 1, blue die, red die, and green die 2, with green die 1, blue die 1, red die 1, and green die 2 making up the first column of pixels of the display screen. The red tube core 1, the green tube core 2, the green tube core 3 and the blue tube core 2 define 4 connected tube cores, and the red tube core 1, the green tube core 2, the green tube core 3 and the blue tube core 2 form the 2 nd column pixels of the display screen. Similarly, each die would be multiplexed, i.e., would appear in 2 adjacent, different columns.

For the column direction, a design of a row tube circuit is needed, and the common ends of two adjacent columns of tube cores are connected. The scanning mode of the line tube is different from the progressive scanning of the conventional display screen. Here, a line selection scan is performed as shown in fig. 2. While scanning the first column, h1_1 is on. While column 2 is scanned, h1_1 and h1_2 are simultaneously turned on. When column 3 is scanned, h1_2 is turned on. When column 4 is scanned, h1_2 and h1_3 are turned on. When column 5 is scanned, h1_3 is turned on. When column 6 is scanned, h1_3 and h1_4 are turned on. When column 7 is scanned, h1_4 is turned on. Similarly, each row is multiplexed, i.e., appears in 2 adjacent, different rows.

According to the LED display screen with the row and column two-way virtual pixels, two-way virtual can be achieved through combination of the row direction and the column direction, and 1.5 times of virtual pixels in the column direction and 1.5 times of virtual pixels in the row direction are achieved.

In some embodiments, the remaining two dies of the first light panel and the remaining two dies of the second light panel are strobed to make up one complete pixel. The first lamp panel is a left lamp panel, and the second lamp panel is a right lamp panel. Specifically, due to the limitation of the lamp panel, only the upper and lower dies of the last column of pixels of the lamp panel on the left will appear at the joint of the lamp panels, and the upper and lower dies of the first column of pixels of the lamp panel on the right will also appear at the joint of the lamp panels, i.e. the like half pixels. The serial signal needs to be processed while the 2 columns of dies are selected, forming an entire column of pixels.

In other embodiments, one more set of driver ICs is needed to control because two dies of the same color are present for a single pixel. Specifically, the first die is controlled by a first driver IC, the second die is controlled by a second driver IC, the third die is controlled by a third driver I C, and the fourth die is controlled by a fourth driver IC.

It should be noted that the description of the present utility model and the accompanying drawings illustrate preferred embodiments of the present utility model, but the present utility model may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are not to be construed as additional limitations of the utility model, but are provided for a more thorough understanding of the present utility model. The above-described features are continuously combined with each other to form various embodiments not listed above, and are considered to be the scope of the present utility model described in the specification; further, modifications and variations of the present utility model may be apparent to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be included within the scope of this utility model as defined in the appended claims.

Claims

1. An LED display screen of row and column bi-directional virtual pixels, comprising: and each lamp bead comprises a first tube core, a second tube core, a third tube core and a fourth tube core, wherein each adjacent first tube core, second tube core, third tube core and fourth tube core form a pixel, each tube core is multiplexed to obtain 2 adjacent and different columns, and each row is multiplexed to obtain 2 adjacent and different rows.

2. The LED display screen of claim 1, wherein the common ends of two adjacent columns of dies are connected.

3. The LED display screen of claim 2, wherein the remaining two dies of the first light panel and the remaining two dies of the second light panel are strobed to form a complete pixel.

4. A LED display screen of row and column bi-directional virtual pixels according to claim 3, wherein the first die, the second die, the third die, and the fourth die are arranged in a 2x2 matrix.

5. The LED display screen of claim 4, wherein said 2x2 matrix is square or rectangular.

6. The LED display screen of any of claims 1-5, wherein the LED display screen is scanned by selecting rows according to a multiplexing scanning rule.

7. The LED display screen of claim 6, wherein the first die is controlled by the first driver IC.

8. The LED display screen of claim 6, wherein the second die is controlled by a second driver IC.

9. The LED display screen of claim 6, wherein the third die is controlled by a third driver IC.

10. The LED display screen of claim 6, wherein the fourth die is controlled by a fourth driver IC.