CN216435443U - High-brightness LED transparent display screen - Google Patents

Abstract

The utility model relates to a high-brightness LED transparent display screen, which comprises a transparent substrate, a display area and a driving circuit area, wherein the display area is arranged on the substrate and is uniformly provided with LED lamp beads, and the driving circuit area is welded with a driving IC (integrated circuit), and the substrate at least comprises a first substrate and a second substrate; the two sides of the first substrate are respectively provided with a power source positive line and a power source negative line, the power source positive line and the power source negative line are overlapped in wiring mode, LED lamp beads are uniformly distributed on one side of the second substrate, the other side of the second substrate is overlapped on the power source positive line or the power source negative line, and the pins of the public end of the LED lamp beads and the R-, G-and B-pins are respectively electrically connected with the power source positive line and the power source negative line through conductive perforation. The utility model discloses in, because power positive polar line and power negative pole line set up respectively on first base plate two sides and walk the line and overlap, can increase the transparency of base plate, also provide probably for widening power positive polar line and power negative pole line simultaneously, make the transparent screen that the transparent screen of LED becomes hi-lite.

Description

High-brightness LED transparent display screen

Technical Field

The utility model relates to a LED display screen field, especially a high brightness's LED transparent display screen.

Background

The display screen is from curved surface display to plane display, the development track is from cathode ray tube display screen to LCD display screen, at present, with the development of advertisement industry, various special-shaped display screens provide stage for advertisement industry. The Chinese invention patent application publication No. CN 109585629A discloses an LED display screen composed of transparent films, which comprises a flexible transparent film, a conductive film circuit, an LED chip, a flexible circuit board and a driving strip; the flexible transparent film is an insulating non-conducting film; the conductive film circuit is plated on the flexible transparent film in a film coating mode and forms a specified connecting circuit through laser etching; the LED chips are adhered to the flexible transparent film according to a specified arrangement mode and are connected with the conductive film circuit; the conductive thin film circuit is connected with the driving strip through the flexible circuit board; the flexible transparent film, the conductive film circuit and the LED chip form an LED flexible display screen, and the LED flexible display screen is driven by the flexible circuit board and the driving strip; and a protective film is adhered on the LED flexible display screen.

As shown in fig. 1, the LED flexible display screen uses a flexible transparent film as a substrate 100, and has the characteristics of lightness, thinness, rollability, freedom in design, and the like, so as to better satisfy human needs to a certain extent. Currently, a flexible transparent film for a transparent LED display screen generally includes PET (Polyethylene terephthalate, chinese name), PMMA (polymethyl methacrylate), transparent PI (polyimide, chinese name), and PC (Polycarbonate, chinese name). The substrate is made of a material with flexibility and transparency, so that the transparency of the LED display screen is improved, and free bending of the LED display screen is realized.

In practice, a non-flexible transparent substrate 100 such as glass may also be used.

As shown in fig. 1, an image display surface (front surface) of a conventional transparent LED display screen is shown, and as shown in the figure, the substrate 100 is divided into a display area 110 on which LED beads 111 are uniformly distributed and a driving circuit area 120 on which a driving IC121 is welded, and the driving circuit controls the brightness and color of each LED bead 111 to form a display image.

At present, the LED lamp bead 111 is shown in fig. 2, and has a power input terminal +, which is a common terminal, and in addition, three R-, G-, and B-pins, which form a loop with the common terminal respectively, to generate three colors of red, green, and blue, and the driving circuit of the driving circuit region 120 scans the LED lamp bead 111 of the display region 110 to form an image of one frame.

At present, when producing such a transparent LED display screen, conductive circuits, that is, circuits, are formed on a substrate 100 plated with copper films on both sides by etching, in practice, the copper films are etched on the back of the display screen to form a plurality of transverse conductive wires, including a power positive wire 112 connected to a common end of a row of LED beads 111 on the front of the display screen, and a power negative wire 113 connected to R-, G-, and B-three pins of a row of LED beads 111, as shown in fig. 3 and 4, the power positive wire 112 is connected to the common end of the LED beads 111 in the row by passing through conductive perforations in the substrate 100, and the power negative wire 113 is connected to corresponding R-, G-, and B-three pin connecting wires connected to the row of LED beads 111 by passing through conductive perforations in the substrate 100, and these R-pins are connected to the corresponding R-, G-, and B-three pin connecting wires connected to the row of LED beads 111, The G-and B-three-pin connecting wires are also prepared by the same process as the power positive wire 112 and the power negative wire 113. In practice, the current flowing through the positive power line 112 is the sum of the currents flowing through the three negative power lines 113, so that the positive power line 112 is wider than the negative power lines 113, as shown in fig. 4, as the display resolution of the transparent screen is increased, the number of the positive power line 112 and the negative power line 113 is increased, so that more and more copper is left in the etching process, and at the moment, as the conducting wires are denser and denser, the drawn figures are shown in fig. 3, 5 and 7, and become black due to the printing resolution. Thus, the light transmittance of the natural substrate 100 itself is lowered. In addition, along with the higher resolution ratio, the number of the LED beads 111 in a unit area is increased, that is, the LED beads 111 arranged in the vertical and horizontal directions are more and more dense, at this time, if the brightness of the LED beads 111 needs to be increased, that is, the widths of the power positive line 112 and the power negative line 113 need to be increased, so that the light transmittance of the substrate 100, the resolution ratio of the display screen, and the brightness of the LED beads 111 are difficult to be simultaneously satisfied.

SUMMERY OF THE UTILITY MODEL

The utility model discloses in to present LED transparent screen, set up power positive line 112 and power negative pole line 113 at the display surface back, adopt the mode of electrically conducting perforation and the mode difference of the positive LED lamp pearl of display surface to satisfy simultaneously not enough of luminousness, the resolution ratio of display screen, the luminance of LED lamp pearl 111 of base plate 100, provide a high-brightness LED transparent screen, in this LED transparent screen, the base plate includes two-layer at least.

The utility model discloses a realize that the technical scheme that its technical purpose adopted is: a high-brightness LED transparent display screen comprises a transparent substrate, a display area and a driving circuit area, wherein the display area is arranged on the substrate and is uniformly provided with LED lamp beads, the driving circuit area is welded with a driving IC, and the driving IC is respectively and electrically connected with a pin at the common end of the LED lamp beads and R-, G-and B-pins by utilizing a power supply positive wire and a power supply negative wire which extend from the driving circuit area to the display area; the substrate at least comprises a first substrate and a second substrate; the two sides of the first substrate are respectively provided with a power source positive line and a power source negative line, the power source positive line and the power source negative line are overlapped in wiring mode, LED lamp beads are uniformly distributed on one side of the second substrate, the other side of the second substrate is overlapped on the power source positive line or the power source negative line, and the pins of the public end of the LED lamp beads and the R-, G-and B-pins are respectively electrically connected with the power source positive line and the power source negative line through conductive perforation.

Further, in the above high-brightness LED transparent display screen: the first substrate at least comprises a first sub-substrate and a second sub-substrate, the two surfaces of the first sub-substrate and the two surfaces of the second sub-substrate are respectively provided with a power supply positive wire and a power supply negative wire which are overlapped in a wiring mode, the first sub-substrate and the second sub-substrate are overlapped to form the first substrate, and an insulating isolation layer is further arranged between the first sub-substrate and the second sub-substrate.

The utility model discloses in, because power positive polar line and power negative pole line set up respectively on first base plate two sides and walk the line and overlap, can increase the transparency of base plate, also provide probably for widening power positive polar line and power negative pole line simultaneously, make the transparent screen that the transparent screen of LED becomes hi-lite.

In addition, the first substrate can be decomposed to form more layers of power supply positive lines and power supply negative lines which are overlapped and wired, and the transparency of the substrate is further improved.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a front schematic view of a current LED transparent screen;

FIG. 2 is a diagram of an LED lamp bead structure;

fig. 3 is a schematic diagram of the back of the current LED transparent screen.

Fig. 4 is an enlarged view of a in fig. 3.

Fig. 5 is a schematic view of a first substrate according to embodiment 1 of the present invention;

FIG. 6 is an enlarged view of B of FIG. 5;

fig. 7 is a schematic view of another side of the first substrate in embodiment 1 of the present invention;

FIG. 8 is an enlarged view of C of FIG. 7;

FIG. 9 is a cross-sectional view taken along line D-D of FIG. 8 or FIG. 7;

fig. 10 is a cross-sectional view of the transparent screen corresponding to fig. 9 in embodiment 1 of the present invention;

fig. 11 is a cross-sectional view of the transparent screen corresponding to fig. 9 in embodiment 2 of the present invention.

Detailed Description

Embodiment 1, as shown in fig. 10, this embodiment is a high-brightness LED transparent screen, and like a current LED transparent display screen, the LED transparent screen includes a transparent substrate 100, a display area 110 on the substrate 100, where LED beads 111 are uniformly distributed, and a driving circuit area 120, where driving ICs 121 are welded, in this embodiment, the substrate 100 is a transparent substrate, in practice, a PET film is generally used as the substrate, a PI film can also be used as the substrate, of course, a PMMA film or a PC film can also be used as the substrate, in practice, glass and the like can also be used as the substrate, and the transparent substrate can be any glass, whether flexible such as PET, PI, PMMA, PC, PVC, or other glass without flexible characteristics. In this embodiment, the LED lamp bead 111 uses a PGB lamp bead, as shown in fig. 2, it has one anode, that is, a common terminal and three cathodes, which are R-, G-, and B-cathodes, respectively, when the anode is powered on, if a certain cathode is turned on to form a loop, the LED of the color is turned on, and RGB forms a three-component color to form various colors. In this embodiment, the LED beads 111 are uniformly distributed in the longitudinal and transverse directions.

The driving IC121 is electrically connected with the common terminal pin and the R-, G-, B-pins of the LED lamp bead 111 by a power supply positive wire 112 and a power supply negative wire 113 which extend from the driving circuit region 120 to the display region 110; the substrate 100 at least comprises a first substrate 101 and a second substrate 102; the power supply positive line 112 and the power supply negative line 113 are formed on two sides of the first substrate 101 respectively as shown in fig. 5, 6, 7, 8, 9 and 10, the power supply positive line 112 and the power supply negative line 113 are overlapped in a wiring mode, LED lamp beads 111 are uniformly distributed on one side of the second substrate 102, the other side of the second substrate is overlapped on the power supply positive line 112 or the power supply negative line 113, and pins at the public end of the LED lamp beads 111 and R-, G-and B-pins are electrically connected with the power supply positive line 112 and the power supply negative line 113 respectively through conductive perforation.

In this embodiment, a PET film is used as a substrate, and the flexible transparent display screen has a front surface as shown in fig. 1, a driving circuit region 120 and a display region 110, and a back surface as shown in fig. 5, and power positive lines 112 and power negative lines 113 are uniformly distributed.

Example 2 is shown in fig. 11, which is different from example 1 in that it is a display panel of five-layer wiring, and example 1 is a display panel of 3-layer wiring. The first substrate 101 comprises a first sub-substrate 101-1 and a second sub-substrate 101-2, a power supply positive line 112 and a power supply negative line 113 with overlapped wiring are respectively arranged on two sides of the first sub-substrate 101-1 and the second sub-substrate 101-2, the first sub-substrate 101-1 and the second sub-substrate 101-2 are overlapped to form the first substrate 101, and an insulating isolation layer 101-3 is further arranged between the first sub-substrate 101-1 and the second sub-substrate 101-2.

In the above embodiments 1 and 2, the power supply positive line 112 and the power supply negative line 113 are respectively disposed on two sides of the first substrate or two sides of the first sub-substrate and the second sub-substrate, and practically, the wiring is relatively free, and there may be the power supply positive line 112 and the power supply negative line 113 on two sides of the first substrate, and the other side is the same, only the power supply positive line 112 and the power supply negative line 113 are required to be overlapped and wired.

Claims (2)

1. A high-brightness LED transparent display screen comprises a transparent substrate (100), a display area (110) and a driving circuit area (120), wherein the display area (110) is formed in the substrate (100) in a uniformly distributed mode, the driving circuit area (120) is welded with a driving IC (121), and the driving IC (121) is electrically connected with a pin at the common end of the LED lamp beads (111) and a pin R-, G-or B-through a power supply positive wire (112) and a power supply negative wire (113) which extend from the driving circuit area (120) to the display area (110) respectively; the method is characterized in that: the substrate (100) at least comprises a first substrate (101) and a second substrate (102); two sides of the first substrate (101) are respectively provided with a power positive line (112) and a power negative line (113), the power positive line (112) and the power negative line (113) are overlapped in a wiring mode, one side of the second substrate (102) is uniformly provided with LED lamp beads (111), the other side of the second substrate is overlapped on the power positive line (112) or the power negative line (113), and the common end pin and the R-, G-, B-pin of the LED lamp beads (111) are electrically connected with the power positive line (112) and the power negative line (113) respectively by adopting conductive perforation.

2. The high brightness LED transparent display screen according to claim 1, wherein: the first substrate (101) at least comprises a first sub-substrate (101-1) and a second sub-substrate (101-2), two faces of the first sub-substrate (101-1) and the second sub-substrate (101-2) are respectively provided with a power supply positive wire (112) and a power supply negative wire (113) which are overlapped in a wiring mode, the first sub-substrate (101-1) and the second sub-substrate (101-2) are overlapped to form the first substrate (101), and an insulating isolation layer (1013) is further arranged between the first sub-substrate (101-1) and the second sub-substrate (1012).

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