Transparent screen based on ultra-high light transmission LED display manufacturing technology

Abstract

The utility model discloses a transparent screen based on an ultrahigh light transmission LED display manufacturing technology, the transparent screen comprises a base material and a display unit arranged on the base material, a non-circuit area on the base material is provided with light transmission holes, and the light transmission holes comprise a circular hole and a waist-shaped hole. According to the utility model, an opening mode of combining the circular light-transmitting holes and the waist-shaped light-transmitting holes is adopted, so that the aperture ratio can be realized to the greatest extent on the basis of meeting the mechanical strength, and the light-transmitting effect is better.

Description

Technical Field

[0001] This utility model discloses an LED transparent screen, particularly a transparent screen based on ultra-high light transmittance LED display manufacturing technology, which belongs to the field of large display equipment technology. Background Technology

[0002] Transparent LED screens are based on traditional LED displays, but with improvements in surface mount manufacturing technology, LED chip packaging, and control systems, and the addition of a perforated design structure. Power is supplied by an LED power supply, the control system transmits commands, the driver IC provides the display program, and the LED chips display information. The transparent effect is created by the gaps between the parallel rows of LED strips.

[0003] LED transparent screens are widely used in commercial advertising, cultural entertainment, exhibitions, transportation hubs, and architectural decoration due to their advantages such as high transparency, customizable shapes, high-definition display, easy maintenance, lightweight and convenient design, and energy efficiency.

[0004] Existing transparent screens typically utilize LED chips or wafers mounted on a substrate for display, along with driving circuitry. To achieve the transparent effect, openings are usually created in non-circuitous areas of the substrate to allow light to pass through. When creating these openings, the substrate's mechanical strength and the aperture ratio must be considered. The aperture ratio directly affects light transmission; a higher ratio results in better light transmission, while a lower ratio leads to poorer transmission. Simply increasing the aperture ratio to improve light transmission can compromise the overall mechanical strength of the transparent screen, making it more susceptible to damage during production, transportation, installation, and use. Therefore, considering all factors, most current transparent screens use round or figure-eight shaped holes. However, these still suffer from relatively low aperture ratios and less than ideal light transmission.

[0005] Currently, transparent screens are typically manufactured using standard sizes. When a large screen is needed, multiple screens are spliced ​​together. The LEDs used on these screens are RGB tri-color LEDs. When multiple screens are spliced ​​together, inconsistencies in color can easily occur at the seams between opposing screens. Summary of the Invention

[0006] In response to the aforementioned problems of relatively low aperture ratio and unsatisfactory light transmission effect in existing transparent screens, this utility model provides a transparent screen based on ultra-high light transmittance LED display manufacturing technology. It adopts an aperture method that combines circular and waist-shaped light transmission holes, which can maximize the aperture ratio while meeting mechanical strength requirements.

[0007] The technical solution adopted by this utility model to solve its technical problem is: a transparent screen based on ultra-high light transmittance LED display manufacturing technology. The transparent screen includes a substrate and a display unit disposed on the substrate. Light-transmitting holes are opened in the non-circuit area of ​​the substrate. The light-transmitting holes include circular holes and oblong holes.

[0008] The technical solution adopted by this utility model to solve its technical problem further includes:

[0009] The display units are arranged in a matrix on the substrate, with light-transmitting holes between rows or between columns.

[0010] The circular holes and oblong holes are alternately arranged, that is, an oblong hole is arranged between two adjacent circular holes, and a circular hole is arranged between two adjacent oblong holes.

[0011] The diameter of the circular hole is 1 / 2 to 1 / 2 of the width of the oblong hole.

[0012] The length of the rectangular portion of the waist-shaped hole is the distance between the adjacent sides of two adjacent display units, and the width is the distance between the adjacent sides of two adjacent display units. The diameter of the semi-circular portions at both ends of the waist-shaped hole is the same as the width of the rectangular portion of the waist-shaped hole.

[0013] The display unit uses an integrated LED lamp or an integrated LED chip, or a separate LED lamp or a separate LED chip. When using an integrated LED lamp or an integrated LED chip, the substrate is a single-sided or double-sided board. When using a separate LED lamp or a separate LED chip, the substrate is a single-sided, double-sided, or multi-layer board.

[0014] The display unit uses a three-pin integrated LED lamp or integrated LED chip with a lamp driver. One pin is a positive power supply pin, one pin is a negative power supply pin, and the other is a control pin. The positive power supply pin is connected to the positive power line, the negative power supply pin is connected to the negative power line, and the control pin of the display unit is connected to the signal line.

[0015] The display unit uses a four-pin integrated LED lamp or integrated LED chip with a lamp driver. One pin is a positive power supply pin, one pin is a negative power supply pin, and the other two are I / O pins. Both I / O pins have input and output functions. The positive power supply pin is connected to the positive power line, and the negative power supply pin is connected to the negative power line. The I / O pins are connected to the I / O pins of adjacent display units through signal lines.

[0016] The display unit uses a five-pin integrated LED lamp or integrated LED chip with a lamp driver. One pin is a positive power supply pin, one pin is a negative power supply pin, and the other three are I / O pins. One I / O pin is provided on one side and two I / O pins are provided on the other side. All three I / O pins have input and output functions. The positive power supply pin is connected to the positive power supply line, and the negative power supply pin is connected to the negative power supply line. One I / O pin on one side is connected to two I / O pins of the adjacent display unit through signal lines.

[0017] The display unit uses a six-pin integrated LED lamp or integrated LED chip with a lamp driver. One pin is a positive power supply pin, one pin is a negative power supply pin, and the other four are I / O pins. All four I / O pins have input and output functions. The positive power supply pin is connected to the positive power line, the negative power supply pin is connected to the negative power line, and the I / O pins are connected to the I / O pins of adjacent display units through signal lines.

[0018] The display unit uses a three-pin design with separate lamp and driver LEDs or LED chips. One pin of the driver chip is a positive power supply pin, one pin is a negative power supply pin, and the other is an I / O pin. The positive power supply pin is connected to the positive power line, the negative power supply pin is connected to the negative power line, and the I / O pin is connected to the signal lines. The power supply pin and control pin of the LED or LED chip are connected to the power supply pin and control pin of the driver chip, respectively.

[0019] The display unit uses a four-pin LED lamp or LED chip with separate lamp driver. One pin of the driver chip is a positive power supply pin, one pin is a negative power supply pin, and the other two are I / O pins. Both I / O pins have input and output functions. The positive power supply pin is connected to the positive power line, and the negative power supply pin is connected to the negative power line. The I / O pins are connected to the I / O pins of adjacent display units through signal lines. The power supply pins and control pins of the LED lamp or LED chip are connected to the power supply pins and control pins of the driver chip, respectively.

[0020] The display unit uses a five-pin LED lamp or LED chip with separate lamp driver. One pin of the driver chip is a positive power supply pin, one pin is a negative power supply pin, and the other three are I / O pins. One I / O pin is provided on one side and two I / O pins are provided on the other side. All three I / O pins have input and output functions. The positive power supply pin is connected to the positive power supply line, and the negative power supply pin is connected to the negative power supply line. One I / O pin on one side is connected to two I / O pins of the adjacent display unit through signal lines. The power supply pin and control pin of the LED lamp or LED chip are connected to the power supply pin and control pin of the driver chip, respectively.

[0021] The display unit uses a six-pin LED lamp or LED chip with separate lamp driver. One pin of the driver chip is a positive power supply pin, one pin is a negative power supply pin, and the other four are I / O pins. All four I / O pins have input and output functions. The positive power supply pin is connected to the positive power line, and the negative power supply pin is connected to the negative power line. The I / O pins are connected to the I / O pins of adjacent display units through signal lines. The power supply pins and control pins of the LED lamp or LED chip are connected to the power supply pins and control pins of the driver chip, respectively.

[0022] A controller is connected to the substrate. The I / O pin of the first display unit closest to the controller is connected to the controller. The I / O pins of the other display units are connected in series through signal lines. The I / O pin of the last display unit is connected to the controller.

[0023] The substrate can be a rigid substrate or a flexible substrate. The rigid substrate can be a paper substrate composed of phenolic resin and paper fiber, an epoxy glass cloth substrate (FR-4), a composite substrate (CEM), an aluminum substrate, a stainless steel substrate, a copper substrate, a ceramic substrate, or a glass substrate. The flexible substrate can be a polyester film board, a polyimide (PI) board, a polytetrafluoroethylene (PTFE) substrate, or a polyimide glass fiber cloth laminate.

[0024] The substrate and display unit are covered with a flexible film. The transparent screen is divided into type A modules and type B modules. The arrangement direction of the RGB tri-color LED beads or RGB tri-color LED chips on the type A module is opposite to that on the type B module.

[0025] The beneficial effects of this utility model are: This utility model adopts an opening method that combines circular light-transmitting holes and waist-shaped light-transmitting holes, which can maximize the opening rate while meeting mechanical strength requirements, thus making its light transmission effect better.

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0027] Figure 1 This is a partially enlarged structural schematic diagram of the present invention.

[0028] Figure 2 This is a schematic diagram of the exploded structure of the transparent screen of this utility model.

[0029] Figure 3 This is a schematic diagram of the six-pin LED lamp structure in this utility model.

[0030] Figure 4This is a schematic structural diagram of a four-pin LED lamp in the present utility model.

[0031] Figure 5 This is a schematic connection diagram of the control circuit for the first embodiment (connected head to head) of a six-pin LED lamp in the present utility model.

[0032] Figure 6 This is a schematic connection diagram of the control circuit for the first embodiment (connected head to head) of a four-pin LED lamp in the present utility model.

[0033] Figure 7 This is a schematic connection diagram of the control circuit for the second embodiment (connected tail to tail) of a six-pin LED lamp in the present utility model.

[0034] Figure 8 This is a schematic connection diagram of the control circuit for the second embodiment (connected tail to tail) of a four-pin LED lamp in the present utility model.

[0035] In the figure, 1 - substrate, 2 - display unit, 3 - kidney-shaped hole, 4 - round hole, 5 - lamp board, 6 - lamp board screw, 7 - lamp board copper column, 8 - lower cover of power supply box, 9 - upper cover of power supply box, 10 - power board, 11 - first side cover, 12 - second side cover, 13 - power board copper column, 14 - power board screw, 15 - backing plate. Specific embodiments

[0036] This embodiment is the preferred embodiment of the present utility model. All those with the same or similar principles and basic structures as this embodiment are within the protection scope of the present utility model.

[0037] The present utility model mainly protects a transparent screen based on ultra-high light-transmitting LED display manufacturing technology, including a substrate 1 and a display unit 2 provided on the substrate 1. Light-transmitting holes are provided in the non-circuit area of the substrate 1, and the light-transmitting holes include circular holes and kidney-shaped holes 3.

[0038] In this embodiment, the display units 2 are arranged in an N×M matrix form on the substrate 1, that is, N rows of display units 2 are provided on the substrate 1, and M display units 2 are provided in each row, or it can be understood that M columns of display units 2 are provided on the substrate 1, and N display units 2 are provided in each column. Among them, both N and M are integers greater than or equal to 1. In specific implementation, the display units 2 on the substrate 1 can also adopt other arrangement methods, such as: the installation positions of three adjacent display units 2 are arranged in a "pin" shape, etc., or other conventional arrangement methods can be adopted. Since the display units 2 are arranged in a matrix form on the substrate 1, light-transmitting holes can be provided between rows or between columns. The specific opening method is set according to the wiring direction. When wiring according to rows, the light-transmitting holes are opened between rows, and when wiring according to columns, the light-transmitting holes are opened between columns.

[0039] In this embodiment, circular holes and oblong holes 3 are alternately arranged, that is, an oblong hole 3 is provided between two adjacent circular holes, and a circular hole is provided between two adjacent oblong holes 3.

[0040] In this embodiment, the diameter of the circular hole 4 is 1 / 2 to 1 / 2 of the width of the waist-shaped hole.

[0041] In this embodiment, the length of the rectangular portion of the waist-shaped hole 3 is the distance between the adjacent sides of two adjacent display units, and the width is the distance between the adjacent sides of two adjacent display units. The diameter of the semi-circular portions at both ends of the waist-shaped hole 3 is the same as the width of the rectangular portion of the waist-shaped hole 3.

[0042] In this embodiment, the display unit 2 can be an integrated LED lamp (with its own driving and control circuit, or it can also be called a chip with an LED lamp), or it can be an integrated LED chip (with its own driving and control circuit, or it can also be called a chip with an LED lamp), or it can be a separate LED lamp or LED chip.

[0043] When using an integrated LED lamp or LED chip with integrated lamp and driver, the substrate 1 can be a single-sided or double-sided board. When using a separate LED lamp or LED chip with separate lamp and driver, the substrate 1 can be a single-sided, double-sided, or multi-layer board. In specific implementation, the settings can be made according to actual needs.

[0044] In this embodiment, the display unit 2 typically adopts a three-pin, four-pin, five-pin, or six-pin design, and can be divided into the following eight specific implementation methods:

[0045] Example 1: An LED lamp or LED chip with integrated lamp driver and three-pin design is used. One pin is the positive power supply pin, one pin is the negative power supply pin (i.e., the ground pin), and the other I / O pin is connected to the positive power supply line and the negative power supply line. The control pins of the display units are connected to the signal lines respectively. Each display unit is controlled individually in parallel.

[0046] Example 2: An LED lamp or LED chip with integrated lamp driver and four-pin design is used. One pin is a positive power supply pin, and one pin is a negative power supply pin (i.e., a ground pin). The other two I / O pins have input and output functions. The positive power supply pin is connected to the positive power line, and the negative power supply pin is connected to the negative power line. The I / O pins are connected to the I / O pins of the adjacent display unit 2 through signal lines.

[0047] Example 3: A five-pin LED lamp or LED chip with integrated lamp driver, one pin being a positive power supply pin and one pin a negative power supply pin (i.e., ground pin). The other three I / O pins are arranged with one I / O pin on one side and two I / O pins on the other side (the two I / O pins have the same function; in this example, this is for redundancy). All three I / O pins have input / output functions. The positive power supply pin is connected to the positive power line, and the negative power supply pin is connected to the negative power line. One I / O pin on one side is connected to two I / O pins of the adjacent display unit via signal lines. Example 4: A six-pin LED lamp or LED chip with integrated lamp driver, one pin being a positive power supply pin and one pin a negative power supply pin (i.e., ground pin). The other four I / O pins all have input / output functions. The positive power supply pin is connected to the positive power line, and the negative power supply pin is connected to the negative power line. The I / O pins are connected to the I / O pins of the adjacent display unit 2 via signal lines.

[0048] Example 5: A three-pin LED lamp or LED chip with separate lamp driver and driver design. One pin of the driver chip is a positive power supply pin, one pin is a negative power supply pin (i.e., a ground pin), and the other is an I / O pin with input / output functions. The positive power supply pin is connected to the positive power line, the negative power supply pin is connected to the negative power line, and the I / O pin is connected to the signal lines. The power supply pin and control pin of the LED lamp or LED chip are connected to the power supply pin and control pin of the driver chip, respectively. Each driver chip is connected in parallel for individual control. Example 6: A four-pin LED lamp or LED chip with separate lamp driver and driver design, wherein one pin of the driver chip is a positive power supply pin, one pin is a negative power supply pin (i.e., a ground pin), and the other two are I / O pins, both of which have input and output functions. The positive power supply pin is connected to the positive power supply line, and the negative power supply pin is connected to the negative power supply line. The I / O pins are connected to the I / O pins of the adjacent display unit 2 through signal lines. The power supply pins and control pins of the LED lamp or LED chip are respectively connected to the power supply pins and control pins of the driver chip.

[0049] Example 7: A five-pin LED lamp or LED chip with separate lamp driver and driver design. One pin of the driver chip is a positive power supply pin, and another is a negative power supply pin (i.e., a ground pin). The other three I / O pins are arranged with one I / O pin on one side and two I / O pins on the other side (the two I / O pins have the same function, which is redundant in this example). All three I / O pins have input and output functions. The positive power supply pin is connected to the positive power line, and the negative power supply pin is connected to the negative power line. One I / O pin on one side is connected to two I / O pins of the adjacent display unit through signal lines. The power supply pin and control pin of the LED lamp or LED chip are connected to the power supply pin and control pin of the driver chip, respectively.

[0050] Example 8: A six-pin LED lamp or LED chip with separate lamp driver and driver design, wherein one pin of the driver chip is a positive power supply pin, one pin is a negative power supply pin (i.e., a ground pin), and the other four are I / O pins, each with input / output functions. The positive power supply pin is connected to the positive power line, and the negative power supply pin is connected to the negative power line. The I / O pins are connected to the I / O pins of the adjacent display unit 2 through signal lines. The power supply pins and control pins of the LED lamp or LED chip are respectively connected to the power supply pins and control pins of the driver chip.

[0051] When the above structure is connected into a light string, the I / O pin of the first display unit 2 closest to the controller (or the pin of the chip if using an integrated LED or LED chip; or the pin of the driver chip if using a separate LED or LED chip) is connected to the controller. The I / O pins of the other display units 2 are connected in series via signal lines. The I / O pin of the last display unit 2 is connected to the controller, thus forming a closed-loop control circuit. Under normal conditions, the control signal is output from the controller to the first display unit 2, the first display unit 2 outputs the control signal to the second display unit 2, and so on, until the last display unit 2. If any display unit 2 is damaged, the display units 2 before the damaged display unit 2 are controlled by the forward-transmitted control signal, and the display units 2 after the damaged display unit 2 are controlled by the reverse-transmitted control signal from the last display unit 2. This utility model adopts a redundant control design, so that if any display unit 2 is damaged, only that point will be abnormally displayed, and the entire display will not be abnormal.

[0052] In this embodiment, the substrate 1 can be a rigid substrate 1 or a flexible substrate 1. The rigid substrate 1 can be a paper substrate 1 composed of phenolic resin and paper fiber, an epoxy glass cloth substrate 1 (FR-4), a composite substrate 1 (CEM), an aluminum substrate 1, a stainless steel substrate 1, a copper substrate 1, a ceramic substrate 1, or a glass substrate 1, etc. The flexible substrate 1 can be a polyester film board, a polyimide (PI) board, a polytetrafluoroethylene (PTFE) substrate 1, or a polyimide glass fiber cloth laminate, etc.

[0053] In this embodiment, the display unit 2 may be an RGB LED bead with integrated lamp driver or a forward-mounted or flip-mounted light-emitting diode chip.

[0054] In this embodiment, a flexible film is covered on the outside of the substrate 1 and the display unit to provide protection without affecting the light transmission effect.

[0055] The transparent screen in this invention can be made into standard structural modules, which are spliced ​​on-site to form the entire transparent screen. The transparent screen module adopts a rectangular structure, and the controller is set at the edge of the short side on one side. When it is spliced, the controller can be located on the left and right sides of the entire transparent screen, or on the top and bottom sides of the entire transparent screen, serving as a frame without affecting the transparency effect of the central area of ​​the transparent screen.

[0056] The display screen in this utility model mainly includes a substrate 1, a display unit 2, a lamp board 5, a power box upper cover 9, a power box lower cover 8, and a power board 10. The display unit 2 is disposed on the substrate 1, and the lamp board 5 (for connection with the driver) is connected to the substrate 1. In this embodiment, the lamp board 5 and the substrate 1 can be integrally disposed or separately disposed. The power box upper cover 9 and the power box lower cover 8 are fixedly installed together to form a power box. In this embodiment, the power box upper cover 9 and the power box lower cover 8 are fixedly installed by screws. Other fixing methods can also be used in specific implementations. The power board 10 is fixedly installed inside the power box, and the lamp board 5 is electrically connected to the power board 10.

[0057] In this embodiment, the lamp board 5 is located below the lower cover 8 of the power supply box. A lamp board copper pillar 7 is provided between the lamp board 5 and the lower cover 8 of the power supply box. The lamp board copper pillar 7 is inserted into the lamp board 5 from bottom to top and is fixed together with the lamp board screw 6 located inside the lower cover 8 of the power supply box, thereby realizing the installation of the lamp board 5 and the lower cover 8 of the power supply box.

[0058] In this embodiment, a power board copper pillar 13 is provided between the power board 10 and the lower cover 8 of the power box, and the power board 10 is fixedly installed together with the lower cover 8 of the power box by power board screws 14.

[0059] In this embodiment, a first side cover 11 is fixedly installed on one side of the power supply box, and a second side plate 12 is fixedly installed on the other side of the power supply box. Gaskets 15 are respectively arranged between the first side cover 11 and the second side plate 12 and the power supply box. In this embodiment, the gasket 15 can be made of ethylene vinyl acetate (EVA), which has excellent elasticity, flexibility, chemical corrosion resistance, and good processing performance, etc.

[0060] In this embodiment, when the transparent screen is a color screen, the display unit 2 uses RGB three-color LED lamp beads or RGB three-color LED chips. The three lamp beads or three chips on the RGB three-color LED lamp beads or RGB three-color LED chips usually adopt a "one" shape arrangement or a "pin" shape arrangement. The transparent screen module can be processed into A-type modules and B-type modules separately. The arrangement direction of the RGB three-color LED lamp beads or RGB three-color LED chips on the A-type module is opposite to the arrangement direction of the RGB three-color LED lamp beads or RGB three-color LED chips on the B-type module. Taking the three lamp beads arranged in a "one" shape as an example, when the three lamp beads in the A-type module are welded, the method is "R, G, B", then when the three lamp beads in the B-type module are welded, the method should be "B, G, R". Since the A-type module and the B-type module are arranged opposite to each other during assembly, that is, the B-type module is equivalent to rotating 180° relative to the A-type module. After the three lamp beads "B, G, R" in the B-type module are rotated 180°, there is no "R, G, B", and it can just follow the arrangement method of the A-type module, and there will be no display abnormality at the joint.

[0061] The utility model adopts an opening method combining circular light-transmitting holes and waist-shaped light-transmitting holes. On the basis of meeting the mechanical strength, it can achieve the maximum opening rate to make the light-transmitting effect better.

Claims

1. A transparent screen based on ultra-high transmittance LED display manufacturing technology, characterized in that: The transparent screen includes a substrate and display units disposed on the substrate. Light-transmitting holes are provided in the non-circuit areas of the substrate. The light-transmitting holes include circular holes and oblong holes. The display units are arranged in a matrix on the substrate, with the light-transmitting holes located between rows or between columns.

2. The transparent screen based on ultra-high transmittance LED display manufacturing technology according to claim 1, characterized in that: The circular holes and oblong holes are alternately arranged, that is, an oblong hole is arranged between two adjacent circular holes, and a circular hole is arranged between two adjacent oblong holes.

3. The transparent screen based on ultra-high transmittance LED display manufacturing technology according to claim 1, characterized in that: The diameter of the circular hole is 1 / 2 to 1 / 2 of the width of the oblong hole.

4. The transparent screen based on ultra-high transmittance LED display manufacturing technology according to claim 1, characterized in that: The length of the rectangular portion of the waist-shaped hole is the distance between the adjacent sides of two adjacent display units, and the width is the distance between the adjacent sides of two adjacent display units. The diameter of the semi-circular portions at both ends of the waist-shaped hole is the same as the width of the rectangular portion of the waist-shaped hole.

5. The transparent screen based on ultra-high transmittance LED display manufacturing technology according to claim 1, characterized in that: The display unit uses an integrated LED lamp or an integrated LED chip, or a separate LED lamp or a separate LED chip. When using an integrated LED lamp or an integrated LED chip, the substrate is a single-sided or double-sided board. When using a separate LED lamp or a separate LED chip, the substrate is a single-sided, double-sided, or multi-layer board.

6. The transparent screen based on ultra-high transmittance LED display manufacturing technology according to claim 1, characterized in that: The display unit uses a three-pin integrated LED lamp or integrated LED chip with a lamp driver. One pin is a positive power supply pin, one pin is a negative power supply pin, and the other is a control pin. The positive power supply pin is connected to the positive power line, the negative power supply pin is connected to the negative power line, and the control pin of the display unit is connected to the signal line. Alternatively, the display unit may employ a four-pin integrated LED lamp or integrated LED chip, with one pin being a positive power supply pin, one pin being a negative power supply pin, and the other two being I / O pins. Both I / O pins have input and output functions. The positive power supply pin is connected to the positive power line, and the negative power supply pin is connected to the negative power line. The I / O pins are connected to the I / O pins of adjacent display units through signal lines. Alternatively, the display unit may employ a five-pin integrated LED lamp or integrated LED chip, with one pin being a positive power supply pin, one pin being a negative power supply pin, and the other three being I / O pins. One I / O pin is provided on one side, and two I / O pins are provided on the other side. All three I / O pins have input and output functions. The positive power supply pin is connected to the positive power supply line, and the negative power supply pin is connected to the negative power supply line. One I / O pin on one side is connected to two I / O pins of the adjacent display unit through signal lines. Alternatively, the display unit may employ a six-pin integrated LED lamp or integrated LED chip, with one pin being a positive power supply pin, one pin being a negative power supply pin, and the other four being I / O pins. All four I / O pins have input and output functions. The positive power supply pin is connected to the positive power line, the negative power supply pin is connected to the negative power line, and the I / O pins are connected to the I / O pins of adjacent display units through signal lines. Alternatively, the display unit may employ a three-pin design with separate lamp and driver LEDs or LED chips. In this design, one pin of the driver chip is a positive power supply pin, one pin is a negative power supply pin, and the other is an I / O pin. The positive power supply pin is connected to the positive power line, the negative power supply pin is connected to the negative power line, and the I / O pin is connected to the signal lines. The power supply pins and control pins of the LED or LED chip are connected to the power supply pins and control pins of the driver chip, respectively. Alternatively, the display unit may employ a four-pin LED lamp or LED chip with separate lamp driver, wherein one pin of the driver chip is a positive power supply pin, one pin is a negative power supply pin, and the other two are I / O pins. Both I / O pins have input and output functions. The positive power supply pin is connected to the positive power supply line, and the negative power supply pin is connected to the negative power supply line. The I / O pins are connected to the I / O pins of adjacent display units through signal lines. The power supply pins and control pins of the LED lamp or LED chip are respectively connected to the power supply pins and control pins of the driver chip. Alternatively, the display unit may employ a five-pin LED with separate lamp and driver, or an LED chip with separate lamp and driver. In this design, one pin of the driver chip is a positive power supply pin, one pin is a negative power supply pin, and the other three are I / O pins. One I / O pin is provided on one side, and two I / O pins are provided on the other side. All three I / O pins have input and output functions. The positive power supply pin is connected to the positive power supply line, and the negative power supply pin is connected to the negative power supply line. One I / O pin on one side is connected to two I / O pins of the adjacent display unit through signal lines. The power supply pins and control pins of the LED or LED chip are connected to the power supply pins and control pins of the driver chip, respectively. Alternatively, the display unit may employ a six-pin LED lamp or LED chip with separate lamp driver, wherein one pin of the driver chip is a positive power supply pin, one pin is a negative power supply pin, and the other four are I / O pins. All four I / O pins have input and output functions. The positive power supply pin is connected to the positive power supply line, and the negative power supply pin is connected to the negative power supply line. The I / O pins are connected to the I / O pins of adjacent display units through signal lines. The power supply pins and control pins of the LED lamp or LED chip are respectively connected to the power supply pins and control pins of the driver chip. A controller is connected to the substrate. The I / O pin of the first display unit closest to the controller is connected to the controller. The I / O pins of the other display units are connected in series through signal lines. The I / O pin of the last display unit is connected to the controller.

7. The transparent screen based on ultra-high transmittance LED display manufacturing technology according to claim 1, characterized in that: The substrate can be a rigid substrate or a flexible substrate. The rigid substrate can be a paper substrate composed of phenolic resin and paper fiber, an epoxy glass cloth substrate (FR-4), a composite substrate (CEM), an aluminum substrate, a stainless steel substrate, a copper substrate, a ceramic substrate, or a glass substrate. The flexible substrate can be a polyester film board, a polyimide (PI) board, a polytetrafluoroethylene (PTFE) substrate, or a polyimide glass fiber cloth laminate.

8. The transparent screen based on ultra-high transmittance LED display manufacturing technology according to claim 1, characterized in that: The substrate and display unit are covered with a flexible film.

9. The transparent screen based on ultra-high transmittance LED display manufacturing technology according to claim 1, characterized in that: The transparent screen is divided into Class A modules and Class B modules. The arrangement direction of the RGB tri-color LED beads or RGB tri-color LED chips on the Class A module is opposite to that on the Class B module.

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