Transparent LED display screen and control system comprising same

Abstract

A transparent LED display screen and a control system comprising the transparent LED display screen. A plurality of identical LED lamp beads are provided in one pixel unit, such that when the brightness of one lamp bead in a pixel unit attenuates, any other LED lamp bead in the same pixel unit is controlled to start working, thereby reducing the brightness attenuation of a display screen over time. In addition, when a certain LED lamp bead in the pixel unit is damaged due to force majeure, any other LED lamp bead in the pixel unit can be controlled to start working, such that a missing pixel point can be filled in, thereby effectively reducing and solving the problem of abnormal working of part of the display screen.

Description

Transparent LED display and control system thereof TECHNICAL FIELD

[0001] The utility model relates to the field of LED display, especially the field of transparent LED display. BACKGROUND

[0002] The transparent LED display comprises a transparent substrate and pixel units arranged in an array on the transparent substrate. The pixel units of the transparent LED display generally comprise a light-emitting component. The light-emitting component has various forms. One form comprises an internal driving IC and an LED lamp bead. However, the pixel unit formed by only one light-emitting component has a problem that the brightness of the RGB light-emitting chip gradually decreases with the passage of time due to the limitation of the use scene and the use time. In addition, the light-emitting component may be damaged by force majeure during use, resulting in the loss of pixel points at the position of the light-emitting unit in the display screen and causing the display screen to work abnormally.

[0003] SUMMARY

[0004] To overcome the problem that the brightness of the transparent LED display gradually decreases with the passage of time and the problem that the light-emitting unit may be damaged by force majeure during use, resulting in the loss of pixel points at the position of the light-emitting unit in the display screen and causing the display screen to work abnormally, the utility model provides a transparent LED display and a control system thereof.

[0005] The utility model provides a transparent LED display, which comprises a transparent substrate and a pixel unit.

[0006] The pixel unit is arranged in an array on the transparent substrate to form a pixel matrix with N rows and M columns. The pixel unit comprises a plurality of LED lamp beads. Each LED lamp bead comprises a driving chip, a light-emitting chip, and a signal port.

[0007] The transparent substrate is provided with a circuit layer. The circuit layer comprises a signal line. The signal line is connected to the signal port of each LED lamp bead. The input control signal controls each pixel unit, so that each LED lamp bead in the pixel unit is uniformly controlled or individually controlled.

[0008] Further, the pixel unit comprises a plurality of identical LED lamp beads. The LED lamp beads in the same pixel unit are connected in series or in parallel through the signal line.

[0009] Further, the LED lamp beads in the same pixel unit are connected in series through the signal line.

[0010] Further, the signal port of each LED lamp bead comprises a first signal port and a second signal port;

[0011] In the same pixel unit, the second signal port of the i-th LED lamp bead is connected in series with the first signal port of the (i+1)-th LED lamp bead through the signal line, wherein i=1, 2, …, K-1, and K is the number of the LED lamp beads in the pixel unit.

[0012] Further, each column of the pixel units is provided with a first power line, a second power line and a signal line; wherein the first power line and the second power line are opposite in polarity.

[0013] In each column of the pixel units, the first power port of each LED lamp bead is connected with the first power line, and the second power port of each LED lamp bead is connected with the second power line; each column of the pixel units is connected in series through the signal line; the first signal port of the first LED lamp bead in the first row of pixel units is connected with the data control module through the signal line.

[0014] Further, each LED lamp bead comprises a first signal port, a second signal port, a third signal port and a fourth signal port.

[0015] Each column of the pixel units is provided with a first power line, a second power line and two signal lines, and the signal lines comprise a first signal line and a second signal line; wherein the first power line and the second power line are opposite in polarity.

[0016] In the same pixel unit, the second signal port of the i-th LED lamp bead is connected in series with the first signal port of the (i+1)-th LED lamp bead through the first signal line, and the fourth signal port of the i-th LED lamp bead is connected in series with the third signal port of the (i+1)-th LED lamp bead through the second signal line, wherein i=1, 2, …, K-1, and K is the number of the LED lamp beads in the pixel unit.

[0017] Further, in each column of the pixel units, the first power port of each LED lamp bead is connected with the first power line, and the second power port of each LED lamp bead is connected with the second power line; all the LED lamp beads in each column of the pixel units are connected in series through the first signal line and the second signal line; the first signal port of the first LED lamp bead in the first row of pixel units is connected with the data control module through the first signal line, and the third signal port of the first LED lamp bead in the first row of pixel units is connected with the data control module through the second signal line.

[0018] Further, each LED lamp bead in the same pixel unit is connected in parallel through the signal line.

[0019] Further, the driving chip of each LED lamp bead has a unique corresponding address code and comprises a signal port; the signal port of each LED lamp bead in the same pixel unit is connected with the signal line.

[0020] Further, each column of pixel units is provided with a first power line, a second power line and a signal line; wherein the first power line and the second power line are opposite in polarity.

[0021] In each column of pixel units, the first power port of each LED lamp bead is connected with the first power line, the second power port of each LED lamp bead is connected with the second power line; each column of pixel units is connected in parallel through the signal line and reads the driving information of the corresponding address code from the signal line; the signal line is connected with the data control module.

[0022] The transparent LED display screen provided by the utility model, when working, because each pixel unit contains multiple same LED lamp beads, by controlling one LED lamp bead in all pixel units to work simultaneously and making the remaining LED lamp beads in all pixel units be in standby state, when the LED lamp bead is attenuated in brightness due to work, any one LED lamp bead in all pixel units except the above LED lamp bead can be controlled to work, thereby the problem that the brightness of the transparent LED display screen is gradually attenuated with the passage of time can be solved.

[0023] The utility model discloses a transparent LED display screen control system on the other side, it includes the transparent LED display screen and data control module as described above.

[0024] The data control module is used to send the specified control signal to control one LED lamp bead in all pixel units to work simultaneously and make the remaining LED lamp beads in all pixel units be in standby state.

[0025] Further, the data control module is also used to control any one LED lamp bead in the same pixel unit except the kth LED lamp bead to work when the kth LED lamp bead in the pixel unit is damaged.

[0026] The transparent LED display screen control system provided by the utility model, when it works, because each pixel unit contains multiple same LED lamp beads, through data control module control all the pixel units in one LED lamp bead work at the same time, and make all the pixel units in the remaining LED lamp beads are in standby state. When the above LED lamp bead due to work and brightness attenuation, at this time data control module can control all pixel units in addition to the above LED lamp bead any one LED lamp bead starts to work, thereby can solve the problem that the transparent LED display screen gradually attenuates with the use time. When the LED lamp bead in a certain pixel unit is damaged by force majeure, the data control module can control any one LED lamp bead in the pixel unit except the damaged LED lamp bead to start working, thereby the missing pixel point can be filled, effectively reducing and solving the problem of abnormal work of part of the display screen. BRIEF DESCRIPTION OF DRAWINGS

[0027] Fig. 1 is a structural schematic view of the first LED display screen provided in the embodiment of the utility model;

[0028] Fig. 2 is a side view of the LED display screen provided in the embodiment of the utility model;

[0029] Fig. 3 is an enlarged view of A in Fig. 1;

[0030] Fig. 4 is an enlarged view of B in Fig. 1;

[0031] Fig. 5 is a structural schematic view of the second LED display screen provided in the embodiment of the utility model;

[0032] Fig. 6 is an enlarged view of C in Fig. 5;

[0033] Fig. 7 is an enlarged view of D in Fig. 5;

[0034] Fig. 8 is a schematic view of the LED display screen in Fig. 1 when all the first LED lamp beads work;

[0035] Fig. 9 is a schematic view of the LED display screen in Fig. 1 when all the second LED lamp beads work;

[0036] Fig. 10 is a schematic view of the LED display screen in Fig. 1 when N2M1b replaces N2M1a to work when N2M1a is damaged;

[0037] Fig. 11 is a schematic view of the LED display screen in Fig. 1 when N2M1a replaces N2M1b to work when N2M1b is damaged;

[0038] Fig. 12 is a schematic view of the LED display screen in Fig. 5 when N2M1b replaces N2M1a to work when N2M1a is damaged;

[0039] Fig. 13 is a schematic diagram of the LED display screen in Fig. 5 when N2M1a replaces N2M1b when N2M1b is damaged.

[0040] In the detailed description of the embodiments, the reference signs are as follows: 1, transparent substrate; 11, etched circuit; 12a, first power supply circuit; 12b, second power supply circuit; 13, signal circuit; 13a, first signal circuit; 13b, second signal circuit; 2, pixel unit; 2a, first LED lamp bead; 2b, second LED lamp bead; 21, built-in driving IC lamp bead; 21a, light-emitting wafer; 21b, driving chip; 22a, first signal port; 22b, second signal port; 22c, third signal port; 22d, fourth signal port; 23a, first power supply port; 23b, second power supply port. Detailed description

[0041] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0042] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0043] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0044] As shown in FIG. 1 to FIG. 4, the utility model embodiment one provides a kind of transparent LED display screen, including transparent substrate 1, etching circuit 11 formed on transparent substrate 1 and multiple pixel units 2;Wherein, the pixel unit 2 includes two identical first LED lamp pearl 2a and second LED lamp pearl 2b, each the LED lamp pearl is built-in driving IC lamp pearl 21, that is, each the LED lamp pearl includes luminous wafer 21a and built-in independent driving chip 21b.In other can be realized implementation mode, the number of LED lamp pearl in pixel unit 2 can be 3 or more.

[0045] Wherein, the LED lamp pearl is public, and the LED lamp pearl is equipped with several ports, and the port includes signal port and power port, as shown in FIG. 4, LED lamp pearl includes first signal port 22a, second signal port 22b, first power port 23a and second power port 23b.

[0046] Luminous wafer 21a includes red luminous wafer, green luminous wafer and blue luminous wafer;It is in a character form arrangement;Of course, it can also be in a character form arrangement.

[0047] First LED lamp pearl 2a and second LED lamp pearl 2b in the same pixel unit 2 can be connected by the way of series as shown in FIG. 1;Of course, it can also be connected by parallel mode.

[0048] Transparent substrate 1 can adopt various rigid or flexible materials known to the public, for example, transparent substrate 1 can be glass substrate, PET (English name: Polyethylene terephthalate, Chinese name: polyethylene terephthalate) substrate, transparent PI (English name: polyimide, Chinese name: polyimide) film, etc.

[0049] Multiple pixel units 2 array distribution in transparent substrate 1, can form as shown in FIG. 1 one N row * M column pixel matrix.

[0050] As shown in FIG. 1, etching circuit 11 formed on transparent substrate 1 includes first power circuit 12a, second power circuit 12b and signal circuit 13;Wherein, the polarity of first power circuit 12a and second power circuit 12b is opposite.

[0051] Each column of pixel units 2 is provided with a power line 12a, a second power line 12b and a signal line 13, the first power port 23a of the first LED lamp bead 2a and the second LED lamp bead 2b in each column of pixel units 2 is connected with the first power line 12a, the second power port 23b of the first LED lamp bead 2a and the second LED lamp bead 2b in each column of pixel units 2 is connected with the second power line 12b, and the pixel units 2 are sequentially connected in series through the signal line 13; in the same pixel unit 2, the second signal port 22b of the first LED lamp bead 2a is connected with the first signal port 22a of the second LED lamp bead 2b through the signal line 13; the first LED lamp bead 2a in the first row of pixel units 2 is connected with the data control module through the signal line 13, and the second signal port 22b of the second LED lamp bead 2b in the last row of pixel units 2 of each adjacent two columns is connected, so as to form an adjacent double-column signal loop.

[0052] When the transparent LED display screen as shown in FIG. 1 works, the control instructions issued by the data control module control the first LED lamp beads 2a in all pixel units 2 in the display screen to work simultaneously, that is, the first LED lamp beads 2a in N1M1, N1M2, N1M3…… work all through the specified application control program, and the second LED lamp beads 2b in all pixel units 2 are in standby state, that is, the second LED lamp beads 2b in N1M1, N1M2, N1M3…… are all in standby state, which makes a complete picture display on the transparent LED display screen, and the specific working state can be seen from FIG. 8. Similarly, when the transparent LED display screen as shown in FIG. 1 works, the control instructions issued by the data control module can control the second LED lamp beads 2b in all pixel units 2 in the display screen to work simultaneously, that is, the second LED lamp beads 2b in N1M1, N1M2, N1M3…… work all through the specified application control program, and the first LED lamp beads 2a in all pixel units 2 are in standby state, that is, the first LED lamp beads 2a in N1M1, N1M2, N1M3…… are all in standby state, which makes a complete picture display on the transparent LED display screen, and the specific working state can be seen from FIG. 9. Of course, when the number of LED lamp beads in the pixel unit 2 is more than two, the working principle is the same as that of the pixel unit 2 containing two LED lamp beads, that is, the control instructions issued by the data control module control one LED lamp bead in all pixel units 2 in the display screen to work simultaneously, and the remaining LED lamp beads in the same pixel unit 2 are all in standby state, for example, the kth LED lamp bead in all pixel units 2 in the display screen can be controlled to work simultaneously, and the remaining LED lamp beads in the same pixel unit 2 except the kth LED lamp bead are all in standby state, wherein k = 1, 2, …, K, and K is the number of LED lamp beads in the pixel unit 2.

[0053] When all the first LED lamp beads 2a in the transparent LED display screen work at the same time, the brightness of all the first LED lamp beads 2a begins to decay over time. At this time, the specified control instruction issued by the data control module, i.e., through the specified application program, controls all the first LED lamp beads 2a to stop working, and controls all the second LED lamp beads 2b to start working at the same time. Since the second LED lamp beads 2b do not participate in work when the first LED lamp beads 2a work, the brightness has not decayed. Therefore, the above working method can reduce the brightness decay of the display screen over time.

[0054] In the transparent LED display screen as shown in FIG. 1, the second signal ports 22b of the second LED lamp beads 2b in the last row of pixel units 2 of the adjacent two columns are connected, thereby forming an adjacent double-column signal loop. When the first LED lamp bead 2a in the pixel unit 2 of the second row and the first column as shown in FIG. 10 or other columns is damaged by force majeure, the signal will not be transmitted from the damaged first LED lamp bead 2a to the first LED lamp bead 2a of the next pixel unit 2 in series, which causes the display screen to have a pixel missing. At this time, the signal is transmitted to the damaged pixel unit 2 through the signal loop of the adjacent pixel unit column as shown in FIG. 1, and the second LED lamp bead 2b in the damaged pixel unit 2 is controlled to start working and the other first LED lamp beads 2a except the damaged first LED lamp bead 2a work at the same time. Similarly, when the second LED lamp bead 2b in the pixel unit as shown in FIG. 11 or other columns is damaged by force majeure, the signal will not be transmitted from the damaged second LED lamp bead 2b to the second LED lamp bead 2b of the next pixel unit 2 in series, which causes the display screen to have a pixel missing. At this time, the first LED lamp bead 2a in the damaged pixel unit 2 is controlled to start working through the original signal transmission, and the other second LED lamp beads 2b except the damaged second LED lamp bead 2b are controlled to work normally through the signal loop of the adjacent pixel unit column as shown in FIG. 1. Through the above working method, the missing pixel point can be filled, and the problem of abnormal work of part of the display screen can be effectively reduced and solved. Of course, when the number of LED lamp beads in the pixel unit 2 is more than two, the working principle is the same as that of the pixel unit 2 containing two LED lamp beads described above, i.e., when the kth LED lamp bead in the pixel unit 2 is damaged, any one LED lamp bead in the same pixel unit except the kth LED lamp bead is controlled to start working, where k = 1, 2, …, K, and K is the number of LED lamp beads in the pixel unit 2.

[0055] In other implementable embodiments, each LED lamp bead in the same pixel unit can be connected in parallel through a signal line, wherein each LED lamp bead contains a driving chip with a unique corresponding address code, and each LED lamp bead includes a signal port; in the same pixel unit, the signal port of each LED lamp bead is connected with the signal line. Each column of the pixel units is provided with a first power line, a second power line and the signal line; wherein the first power line and the second power line are opposite in polarity; the signal line is connected with a data control module, each column of the pixel units is connected in parallel through the signal line and reads the driving information of the corresponding address code from the signal line, and then controls the working state of the corresponding LED lamp bead. Specifically, the data control module transmits corresponding control instructions through the signal line, wherein the control instructions contain driving information for controlling each LED lamp bead in the pixel matrix, and the driving chip of each LED lamp bead in each pixel unit reads the driving information of the corresponding address code from the signal line, and then controls the on-off of the corresponding LED lamp bead according to the driving information. In the above embodiments, the parallel connection between the pixel units in the same column and the parallel connection between each LED lamp bead in the same pixel unit are realized through the signal line, and then the driving chip in each LED lamp bead can read the driving information of the corresponding address code from the signal line, so as to control the on-off of the corresponding LED lamp bead according to the driving information. Specifically, for the pixel unit including two LED lamp beads of the first LED lamp bead 2a and the second LED lamp bead 2b, when the transparent LED display screen is working, the control instructions transmitted by the data control module, wherein the control instructions include driving information for controlling the first LED lamp bead 2a in all pixel units 2 to start working, the driving chip of the first LED lamp bead 2a in all pixel units 2 reads the driving information of the corresponding address code, and then controls each LED lamp bead, so as to realize the simultaneous working of the first LED lamp bead 2a in all pixel units 2, while the second LED lamp bead 2b in all pixel units 2 is in standby state, which makes the complete picture display on the transparent LED display screen.

[0056] When all the first LED lamp beads 2a in the transparent LED display screen work at the same time, the brightness of all the first LED lamp beads 2a starts to decay over time, at this time, the data control module can send a specified control instruction, the control instruction includes driving information for controlling the second LED lamp beads 2b in all the pixel units 2 to start working and driving information for controlling the first LED lamp beads 2a in all the pixel units 2 to stop working, the driving chip of each LED lamp bead reads the driving information corresponding to the address code, and then the first LED lamp beads 2a stop working, and the second LED lamp beads 2b start working at the same time. Since the second LED lamp beads 2b do not participate in the work when the first LED lamp beads 2a work, the brightness has not decayed, therefore, the above working method can reduce the brightness decay of the display screen over time.

[0057] When the first LED lamp beads 2a in a certain column of pixel units 2 are damaged by force majeure, at this time, the data control module sends driving information for controlling the first LED lamp beads 2b in the pixel unit 2 to start working, the driving chip of the first LED lamp beads 2b in the pixel unit 2 reads the driving information, and then drives the first LED lamp beads 2b to start working. Through the above method, the missing pixel points can be filled, and the problem of abnormal work of part of the display screen can be effectively reduced and solved.

[0058] The utility model embodiment two provides a kind of transparent LED display screen control system, it includes the transparent LED display screen and data control module as shown in Figure 1.Wherein the structure of transparent LED display screen can refer to the description of embodiment one, here no longer repeat.

[0059] The working method of the control system is: when the transparent LED display screen as shown in FIG. 1 is working, the control instructions issued by the data control module control the first LED lamp beads 2a in all pixel units 2 in the display screen to work simultaneously, that is, the first LED lamp beads 2a in N1M1, N1M2, N1M3, … are controlled to work by the specified application control program, and the second LED lamp beads 2b in all pixel units 2 are in standby state, that is, the second LED lamp beads 2b in N1M1, N1M2, N1M3, … are in standby state, which makes a complete picture display on the transparent LED display screen. The specific working state can be seen in FIG. 8. Similarly, when the transparent LED display screen as shown in FIG. 1 is working, the control instructions issued by the data control module can control the second LED lamp beads 2b in all pixel units 2 in the display screen to work simultaneously, that is, the second LED lamp beads 2b in N1M1, N1M2, N1M3, … are controlled to work by the specified application control program, and the first LED lamp beads 2a in all pixel units 2 are in standby state, that is, the first LED lamp beads 2a in N1M1, N1M2, N1M3, … are in standby state, which makes a complete picture display on the transparent LED display screen. The specific working state can be seen in FIG. 9. Of course, when the number of LED lamp beads in the pixel unit 2 is more than two, the working principle is the same as that of the pixel unit 2 containing two LED lamp beads described above, that is, the control instructions issued by the data control module control one LED lamp bead in all pixel units 2 in the display screen to work simultaneously, and the remaining LED lamp beads in the same pixel unit 2 are in standby state, for example, the kth LED lamp bead in all pixel units 2 in the display screen can be controlled to work simultaneously, and the remaining LED lamp beads in the same pixel unit 2 except the kth LED lamp bead are in standby state, wherein k = 1, 2, …, K, and K is the number of LED lamp beads in the pixel unit 2.

[0060] When all the first LED lamp beads 2a in the transparent LED display screen work simultaneously, the brightness of all the first LED lamp beads 2a begins to decay over time. At this time, the specified control instructions issued by the data control module, that is, the specified application program controls all the first LED lamp beads 2a to stop working, and controls all the second LED lamp beads 2b to work simultaneously. Since the second LED lamp beads 2b do not participate in work when the first LED lamp beads 2a work, the brightness has not decayed. Therefore, the above working method can reduce the brightness decay of the display screen over time.

[0061] Another working method of the control system is: when the first LED lamp bead 2a in the pixel unit 2 in the N2M1a (N2M1a represents the first LED lamp bead 2a in the first column of the second row) or other columns is damaged by force majeure as shown in FIG. 10, the signal will not be transmitted from the damaged first LED lamp bead 2a to the first LED lamp bead 2a in the next pixel unit 2 in series, which makes the display screen have pixel missing, at this time the data control module controls the second LED lamp bead 2b in the pixel unit 2 in the N2M1b or other columns to start working by specifying the application program to fill the missing pixel point. Similarly, when the second LED lamp bead 2b in the pixel unit in the N2M1b (N2M1b represents the second LED lamp bead 2b in the first column of the second row) or other columns is damaged by force majeure as shown in FIG. 11, the signal will not be transmitted from the damaged second LED lamp bead 2b to the second LED lamp bead 2b in the next pixel unit 2 in series, which makes the display screen have pixel missing, at this time the data control module controls the first LED lamp bead 2a in the pixel unit 2 in the N2M1a or other columns to start working by specifying the application program to fill the missing pixel point. Of course, when the number of LED lamp beads in the pixel unit 2 is more than two, the working principle is the same as the working principle of the pixel unit 2 containing two LED lamp beads described above, that is, when the kth LED lamp bead in the pixel unit 2 is damaged, control any one LED lamp bead in the same pixel unit except the kth LED lamp bead to start working, where k = 1, 2, …, K, K is the number of LED lamp beads in the pixel unit 2.

[0062] The process of realizing the working state of the double bright LED beads is as follows: when the first LED bead 2a in the pixel unit 2 in the N2M1a (N2M1a represents the first LED bead 2a in the second row and the first column) or other columns is damaged by force majeure as shown in FIG. 10, the signal cannot be transmitted from the damaged first LED bead 2a to the first LED bead 2a in the next pixel unit 2 in series, which causes the display screen to be missing pixels, at this time, the control instruction issued by the numerical control control module can be transmitted to the damaged pixel unit 2 through the signal loop of the adjacent pixel unit column as shown in FIG. 1, and the second LED bead 2b in the damaged pixel unit 2 is controlled to start working and the other first LED beads 2a except the damaged first LED bead 2a work at the same time. Similarly, when the second LED bead 2b in the pixel unit in the N2M1b (N2M1b represents the second LED bead 2b in the second row and the first column) or other columns is damaged by force majeure as shown in FIG. 11, the signal cannot be transmitted from the damaged second LED bead 2b to the second LED bead 2b in the next pixel unit 2 in series, which causes the display screen to be missing pixels, at this time, the control instruction issued by the numerical control control module can be transmitted to the damaged pixel unit 2 through the original signal transmission control first LED bead 2a in the damaged pixel unit 2 to start working, and then transmitted to the damaged pixel unit 2 through the signal loop of the adjacent pixel unit column as shown in FIG. 1 to control the other second LED beads 2b to work normally except the damaged second LED bead 2b. Through the above working mode, the missing pixel points can be filled, and the problem of abnormal working of part of the display screen can be effectively reduced and solved.

[0063] Embodiment three of the utility model provides another transparent LED display screen structure, as shown in FIG. 5 to FIG. 7, the embodiment discloses a transparent LED display screen, including transparent substrate 1, etching line 11 formed on transparent substrate 1 and a plurality of pixel units 2, wherein the pixel unit 2 includes two identical first LED beads 2a and second LED beads 2b, each LED bead includes emitting wafer 21a and built-in drive chip 21b.

[0064] Wherein, the LED bead is known to the public, a plurality of ports are further arranged on the LED bead, the ports include signal ports and power ports, as shown in FIG. 7, the LED bead includes first signal port 22a, second signal port 22b, third signal port 22c, fourth signal port 22d, first power port 23a and second power port 23b.

[0065] The emitting wafer 21a includes red emitting wafer, green emitting wafer and blue emitting wafer, and is arranged in a linear shape, and of course, can be arranged in a triangular shape.

[0066] The first LED lamp bead 2a and the second LED lamp bead 2b in the same pixel unit 2 can be connected in series as shown in FIG. 5; of course, they can also be connected in parallel.

[0067] The transparent substrate 1 can adopt various rigid or flexible materials known to the public, for example, the transparent substrate 1 can be a glass substrate, a PET (English name: Polyethylene terephthalate, Chinese name: polyethylene terephthalate) substrate, a transparent PI (English name: polyimide, Chinese name: polyimide) film, etc.

[0068] The plurality of pixel units 2 are arrayed on the transparent substrate 1, and can form an N-row * M-column pixel matrix as shown in FIG. 5.

[0069] As shown in FIG. 5, the etching line 11 formed on the transparent substrate 1 includes a first power line 12a, a second power line 12b, a first signal line 13a, and a second signal line 13b; the polarities of the first power line 12a and the second power line 12b are opposite; each column of pixel units 2 is provided with a first power line 12a, a second power line 12b, a first signal line 13a, and a second signal line 13b. The first power port 23a of the first LED lamp bead 2a and the second LED lamp bead 2b in each column of pixel units 2 is connected to the first power line 12a, the second power port 23b of the first LED lamp bead 2a and the second LED lamp bead 2b in each column of pixel units 2 is connected to the second power line 12b, the first LED lamp bead 2a and the second LED lamp bead 2b in each column of pixel units 2 are connected in series, specifically, in the same pixel unit 2, the second signal port 22b of the first LED lamp bead 2a is connected to the first signal port 22a of the second LED lamp bead 2b, the fourth signal port 22d of the first LED lamp bead 2a is connected to the third signal port 22c of the second LED lamp bead 2b, and the second signal port 22b of the first LED lamp bead 2a is short-circuited with the third signal port 22c. Each column of pixel units 2 is connected in series through the first signal line 13a and the second signal line 13b, respectively, specifically, the first signal port 22a of the first LED lamp bead 2a in the first row of pixel units 2 is connected to the external data control module through the first signal line 13a, and the third signal port 22c of the first LED lamp bead 2a in the first row of pixel units 2 is connected to the external data control module through the second signal line 13b. The second signal port 22b and the fourth signal port 22d of the second LED lamp bead 2b in the last row of pixel units 2 in each column are connected, thereby forming a single-column signal loop.

[0070] When the transparent LED display screen shown in FIG. 5 works, through the control instruction issued by the external data control module, the first LED lamp beads 2a in all pixel units 2 in the display screen can be controlled to work simultaneously, that is, through the specified application control program, the first LED lamp beads 2a in N1M1, N1M2, N1M3, … are controlled to work, and the second LED lamp beads 2b in all pixel units 2 are in standby state, that is, the second LED lamp beads 2b in N1M1, N1M2, N1M3, … are in standby state, which makes a complete picture display formed on the transparent LED display screen. Similarly, when the transparent LED display screen shown in FIG. 5 works, through the control instruction issued by the external data control module, the second LED lamp beads 2b in all pixel units 2 in the display screen can be controlled to work simultaneously, that is, through the specified application control program, the second LED lamp beads 2b in N1M1, N1M2, N1M3, … are controlled to work, and the first LED lamp beads 2a in all pixel units 2 are in standby state, that is, the first LED lamp beads 2a in N1M1, N1M2, N1M3, … are in standby state, which makes a complete picture display formed on the transparent LED display screen. Of course, when the number of LED lamp beads in a pixel unit 2 is more than two, the working principle is the same as that of the pixel unit 2 containing two LED lamp beads described above, that is, through the control instruction issued by the data control module, one LED lamp bead in all pixel units 2 in the display screen is controlled to work simultaneously, and the remaining LED lamp beads in the same pixel unit 2 are in standby state, for example, the kth LED lamp bead in all pixel units 2 in the display screen can be controlled to work simultaneously, and the remaining LED lamp beads in the same pixel unit 2 except the kth LED lamp bead are in standby state, wherein k = 1, 2, …, K, K is the number of LED lamp beads in the pixel unit 2.

[0071] When all first LED lamp beads 2a in the LED display screen work simultaneously, with the passage of time, the brightness of all first LED lamp beads 2a begins to decay, at this time, through the specified control instruction issued by the external data control module, all first LED lamp beads 2a can be controlled to stop working, and all second LED lamp beads 2b can be controlled to start working simultaneously. Since the second LED lamp beads 2b do not participate in work when the first LED lamp beads 2a work, the brightness has not decayed, therefore, the above working method can reduce the brightness decay of the display screen with the passage of time.

[0072] In the transparent LED display screen as shown in Fig. 5, the second signal port 22 and the fourth signal port 22d of the second LED lamp bead 2b in the last row of pixel units 2 of each column are connected, thereby forming a single-column signal loop. When the first LED lamp bead 2a in the pixel unit 2 of the N2M1a (N2M1a represents the first LED lamp bead 2a in the second row and the first column) or other columns is damaged by force majeure, the signal cannot be transmitted from the damaged first LED lamp bead 2a to the first LED lamp bead 2a in the next pixel unit 2 in series, which causes the display screen to have a pixel missing. At this time, the signal can be transmitted to the damaged pixel unit 2 through the signal loop of the self pixel unit column as shown in Fig. 5, the second LED lamp bead 2b in the damaged pixel unit 2 is controlled to start working, and the other first LED lamp beads 2a except the damaged first LED lamp bead 2a are simultaneously controlled to work. Similarly, when the second LED lamp bead 2b in the pixel unit 2 of the N2M1b (N2M1b represents the second LED lamp bead 2b in the first row and the first column) or other columns is damaged by force majeure, the signal cannot be transmitted from the damaged second LED lamp bead 2b to the second LED lamp bead 2b in the next pixel unit 2 in series, which causes the display screen to have a pixel missing. At this time, the first LED lamp bead 2a in the pixel unit is controlled to start working through the original signal transmission, and the other second LED lamp beads 2b except the damaged second LED lamp bead 2b are controlled to normally work through the signal loop of the self pixel unit column as shown in Fig. 5. Through the above working mode, the missing pixel point can be filled, and the problem of abnormal working of part of the display screen is effectively reduced and solved. Of course, when the number of LED lamp beads in the pixel unit 2 is more than two, the working principle is the same as that of the pixel unit 2 containing two LED lamp beads described above, that is, when the kth LED lamp bead in the pixel unit 2 is damaged, any one LED lamp bead except the kth LED lamp bead in the same pixel unit is controlled to start working, wherein k=1, 2, …, K, and K is the number of the LED lamp beads in the pixel unit 2.

[0073] Embodiment four of the utility model provides a kind of transparent LED display screen control system, it contains transparent LED display screen as shown in Fig. 5 and data control module. The structure of transparent LED display screen can refer to the description of embodiment three, not repeated here.

[0074] The working method of the control system is: when the transparent LED display screen as shown in FIG. 1 works, the control instructions issued by the data control module control the first LED lamp beads 2a in all pixel units 2 to work simultaneously, that is, through the specified application control program, the first LED lamp beads 2a in N1M1, N1M2, N1M3…… work, and the second LED lamp beads 2b in all pixel units 2 are in standby state, that is, the second LED lamp beads 2b in N1M1, N1M2, N1M3…… are in standby state, which makes the complete picture display on the transparent LED display screen. The specific working state can be seen in FIG. 8. Similarly, when the transparent LED display screen as shown in FIG. 1 works, the control instructions issued by the data control module can control the second LED lamp beads 2b in all pixel units 2 to work simultaneously, that is, through the specified application control program, the second LED lamp beads 2b in N1M1, N1M2, N1M3…… work, and the first LED lamp beads 2a in all pixel units 2 are in standby state, that is, the first LED lamp beads 2a in N1M1, N1M2, N1M3…… are in standby state, which makes the complete picture display on the transparent LED display screen. The specific working state can be seen in FIG. 9. Of course, when the number of LED lamp beads in the pixel unit 2 is more than two, the working principle is the same as the working principle of the pixel unit 2 containing two LED lamp beads, that is, through the control instructions issued by the data control module, one LED lamp bead in all pixel units 2 works simultaneously, and the remaining LED lamp beads in the same pixel unit 2 are in standby state, for example, the kth LED lamp bead in all pixel units 2 can work simultaneously, and the remaining LED lamp beads in the same pixel unit 2 are in standby state, wherein k = 1, 2, …, K, K is the number of LED lamp beads in the pixel unit 2.

[0075] When all the first LED lamp beads 2a in the transparent LED display screen work simultaneously, with the passage of time, the brightness of all the first LED lamp beads 2a begins to decay. At this time, through the specified control instructions issued by the data control module, that is, through the specified application program, all the first LED lamp beads 2a stop working, and all the second LED lamp beads 2b start working simultaneously. Since the second LED lamp beads 2b do not participate in work when the first LED lamp beads 2a work, the brightness has not decayed. Therefore, the above working method can reduce the brightness decay of the display screen over time.

[0076] Another working method of the control system is: when the first LED lamp bead 2a in the pixel unit 2 in the N2M1a (N2M1a represents the first LED lamp bead 2a in the first column of the second row) or other columns is damaged by force majeure as shown in FIG. 12, the signal will not be transmitted from the damaged first LED lamp bead 2a to the first LED lamp bead 2a in the next pixel unit 2 in series, which makes the display screen have pixel missing, at this time the data control module controls the second LED lamp bead 2b in the pixel unit 2 in the N2M1b or other columns to start working to fill the missing pixel point by specifying the application. Similarly, when the second LED lamp bead 2b in the pixel unit in the N2M1b (N2M1b represents the second LED lamp bead 2b in the first column of the second row) or other columns is damaged by force majeure as shown in FIG. 13, the signal will not be transmitted from the damaged second LED lamp bead 2b to the second LED lamp bead 2b in the next pixel unit 2 in series, which makes the display screen have pixel missing, at this time the data control module controls the first LED lamp bead 2a in the pixel unit 2 in the N2M1a or other columns to start working to fill the missing pixel point by specifying the application. Of course, when the number of LED lamp beads in the pixel unit 2 is more than two, the working principle is the same as the working principle of the pixel unit 2 containing two LED lamp beads described above, that is, when the kth LED lamp bead in the pixel unit 2 is damaged, control any one LED lamp bead in the same pixel unit except the kth LED lamp bead to start working, where k = 1, 2, …, K, K is the number of LED lamp beads in the pixel unit 2.

[0077] The process of realizing the working state of double bright LED beads is as follows: when the first LED bead 2a in the pixel unit 2 in the second row and the first column or other columns as shown in FIG. 12 is damaged by force majeure, the signal cannot be transmitted from the damaged first LED bead 2a to the next first LED bead 2a in the pixel unit 2 in series, which causes the display screen to be missing pixels, at this time, the control instruction issued by the numerical control module can be transmitted to the damaged pixel unit 2 through the signal loop of the self pixel unit column as shown in FIG. 5, to control the second LED bead 2b in the damaged pixel unit 2 to start working and the other first LED beads 2a except the damaged first LED bead 2a to work simultaneously. Similarly, when the second LED bead 2b in the pixel unit 2 in the first row and the first column as shown in FIG. 13 is damaged by force majeure, the signal cannot be transmitted from the damaged second LED bead 2b to the next second LED bead 2b in the pixel unit 2 in series, which causes the display screen to be missing pixels, at this time, the control instruction issued by the data control module can be transmitted to the damaged pixel unit 2 through the signal loop of the self pixel unit column as shown in FIG. 5, to control the first LED bead 2a in the original signal transmission control pixel unit to start working, and the other second LED beads 2b except the damaged second LED bead 2b to work normally. Through the above working mode, the missing pixel points can be filled, and the problem of abnormal working of part of the display screen can be effectively reduced and solved.

[0078] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A transparent LED display screen, characterized in that, Includes a transparent substrate and pixel units; The pixel unit array is distributed on the transparent substrate to form an N-row * M-column pixel matrix; each pixel unit includes multiple LED beads; each LED bead includes a driver chip, a light-emitting wafer, and a signal port; A circuit layer is arranged on the transparent substrate. The circuit layer includes signal lines, which are connected to the signal ports of each LED bead. The input control signal controls each pixel unit, so that each LED bead in the pixel unit can be controlled uniformly or individually.

2. The transparent LED display screen according to claim 1, characterized in that, The pixel unit includes multiple identical LED beads, and the LED beads in the same pixel unit are connected in series or in parallel through the signal line.

3. The transparent LED display screen according to claim 2, characterized in that, The LEDs in the same pixel unit are connected in series through the signal line.

4. The transparent LED display screen according to claim 3, characterized in that, Each LED bead includes a first signal port and a second signal port; In the same pixel unit, the second signal port of the i-th LED bead and the first signal port of the (i+1)-th LED bead are connected in series through the signal line, where i = 1, 2, ..., K-1, and K is the number of LED beads in the pixel unit.

5. The transparent LED display screen according to claim 4, characterized in that, Each column of pixel units is provided with a first power line, a second power line and a signal line; wherein the first power line and the second power line have opposite polarities. In each column of pixel units, the first power port of each LED bead is connected to the first power line, and the second power port of each LED bead is connected to the second power line; the pixel units in each column are connected in series through the signal line; the first signal port of the first LED bead in the first row of pixel units is connected to the data control module through the signal line.

6. The transparent LED display screen according to claim 3, characterized in that, Each of the LED beads includes a first signal port, a second signal port, a third signal port, and a fourth signal port; Each column of pixel units is provided with a first power line, a second power line and two signal lines, the signal lines including a first signal line and a second signal line; wherein the first power line and the second power line have opposite polarities. In the same pixel unit, the second signal port of the i-th LED is connected in series with the first signal port of the (i+1)-th LED through the first signal line, the fourth signal port of the i-th LED is connected in series with the third signal port of the (i+1)-th LED through the second signal line, and the second signal port of the i-th LED is short-circuited with the third signal port, where i = 1, 2, ..., K-1, and K is the number of LEDs in the pixel unit.

7. The transparent LED display screen according to claim 6, characterized in that, In each column of pixel units, the first power port of each LED is connected to the first power line, and the second power port of each LED is connected to the second power line; all LEDs in each column of pixel units are connected in series sequentially through the first signal line and the second signal line. The first signal port of the first LED in the first row of pixel units is connected to the data control module through the first signal line, and the third signal port of the first LED in the first row of pixel units is connected to the data control module through the second signal line.

8. The transparent LED display screen according to claim 2, characterized in that, The LED beads in the same pixel unit are connected in parallel through the signal line.

9. The transparent LED display screen according to claim 8, characterized in that, Each of the LED beads contains a driver chip with a unique address code and includes a signal port; In the same pixel unit, the signal port of each LED bead is connected to the signal line.

10. The transparent LED display screen according to claim 9, characterized in that, Each column of pixel units is provided with a first power line, a second power line and a signal line; wherein the first power line and the second power line have opposite polarities. In each column of pixel units, the first power port of each LED bead is connected to the first power line, and the second power port of each LED bead is connected to the second power line; each column of pixel units is connected in parallel through the signal line, and reads the corresponding address code driving information from the signal line; the signal line is connected to the data control module.

11. A transparent LED display screen control system, characterized in that, It includes a transparent LED display screen as described in any one of claims 1-10 and a data control module; The data control module is used to send a specified control signal to control one of the LED beads in all the pixel units to work simultaneously, and to keep the remaining LED beads in all the pixel units in standby mode.

12. The transparent LED display control system according to claim 11, characterized in that, The data control module is also used to control any LED in the same pixel unit other than the kth LED to start working when the kth LED in the pixel unit is damaged, where k = 1, 2, ..., K.

Images