CN211428166U

CN211428166U - Conformal display screen composed of flexible substrates

Info

Publication number: CN211428166U
Application number: CN202020566777.5U
Authority: CN
Inventors: 朱海波; 肖荣成
Original assignee: Dalian Lufei Photoelectric Technology Co ltd
Current assignee: Dalian Lufei Photoelectric Technology Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-09-04
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a conformal display screen composed of flexible substrates, which comprises a plurality of LED units and unit plates; the plurality of LED units are sequentially connected end to end in series and are fixed on the front surface of the unit plate; the LED unit comprises an LED lamp and a control chip WS 2811; the red anode end of the LED lamp is connected with a 5V power supply through a resistor R3, a green anode end and a blue anode end; the VDD pin of the control chip WS2811 is connected with a 5V power supply through a resistor R3, is connected with GND through a diode D1 and is connected with the ground through a capacitor C1; the OUTR pin, the OUTG pin and the OUTB pin of the control chip WS2811 are respectively connected with a red cathode end, a green cathode end and a blue cathode end of the LED lamp; the display screen is designed to meet the appearance characteristics and display requirements of the carrier, the appearance of the display screen can change along with the outline of the carrier, other electric appliances are not needed on the periphery of the display screen, simplicity of circuits is guaranteed, high-efficiency production is achieved, and the defect that the display screen cannot display in a special shape is overcome.

Description

Conformal display screen composed of flexible substrates

Technical Field

The utility model relates to a display screen field especially relates to a along with shape display screen of constituteing by flexible substrate.

Background

Because the unit modules of the traditional display screen are designed in a two-dimensional plane, only one or more plane display screens or arc-shaped screens with small curvature can be formed when the unit modules are spliced into a complete screen; in addition, the existing display screen is usually rectangular or circular in shape, the largest external deformation is an arc screen with small curvature, but because the unit modules are regular plane shapes, the curved surface is formed by splicing two modules, and an obtuse angle close to 180 degrees is still adopted between every two modules, so that when a large number of unit plates are spliced one by one, an arc surface is really seen at a far position, but because the unit plates are not real arcs, gaps with different intervals can be formed at the splicing positions of every two unit plates, the integrity of a product is reduced, and a plurality of unpredictable risks are brought in the using process of a user, such as poor heat dissipation caused by dust, structural instability and the like.

SUMMERY OF THE UTILITY MODEL

According to the problem that prior art exists, the utility model discloses a along with shape display screen comprises flexible substrate, its characterized in that: comprises a plurality of LED units and unit plates;

the plurality of LED units are sequentially connected end to end in series and are fixed on the front surface of the unit plate;

the LED unit comprises an LED lamp and a control chip WS 2811;

the red anode end of the LED lamp is connected with a 5V power supply through a resistor R3, a green anode end and a blue anode end;

the VDD pin of the control chip WS2811 is connected with a 5V power supply through a resistor R3, connected with the ground through a diode D1 and connected with the ground through a capacitor C1;

the OUTR pin of the control chip WS2811 is connected with a red cathode end of the LED lamp;

the OUTG pin of the control chip WS2811 is connected with a green cathode end of the LED lamp through a resistor R6;

the OUTB pin of the control chip WS2811 is connected with the blue cathode end of the LED lamp;

the DI pin of the control chip WS2811 is connected with the DO pin of the control chip WS2811 of other LED units through a resistor R2;

the DO pin of the control chip WS2811 is connected to the DI pin of the control chip WS2811 of the other LED unit through a resistor R1.

Further, the unit board adopts an FPC substrate.

Further, the number of the LED units connected in series is within 1024.

Furthermore, heat-conducting silica gel is fixed on the back of the unit plate.

Further, the pitch of the LED units is P6 to P100.

Since the technical scheme is used, the utility model provides a pair of along with shape display screen comprises flexible substrate, design benefit, appearance characteristics and the demonstration requirement to the carrier, the design is along with shape display screen, its appearance can be along with the profile variation of carrier, the periphery need not other electrical apparatus, thereby guarantee the succinct nature of circuit and realize the high efficiency operation of production, the unable dysmorphism of display screen demonstration defect has been solved simultaneously, the attached heat conduction silica gel area in the cell board back, this kind of fixed mode has both played the fixed action between carrier and the base plate, played again for base plate and LED radiating effect.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a cell plate according to the present invention;

FIG. 2 is a schematic diagram of the cascade connection between the unit boards according to the present invention;

FIG. 3 is a schematic circuit diagram of the cell board of the present invention;

FIG. 4 is a schematic view of a cell plate according to the present invention;

fig. 5 is a schematic circuit diagram of an LED unit according to the present invention;

fig. 6 is a view showing an installation form of the present invention;

fig. 7 is a schematic view of the position of the heat-conducting adhesive tape of the present invention.

In the figure: 1. LED unit, 2, unit board, 10, LED lamp, 11, control chip WS 2811.

Detailed Description

For making the technical solution and the advantages of the present invention clearer, the following combines the drawings in the embodiments of the present invention, to the technical solution in the embodiments of the present invention is clear and complete description:

FIG. 1 is a schematic view of a cell plate according to the present invention; a conformal display screen composed of flexible substrates comprises a plurality of LED units 1 and unit plates 2;

fig. 2 is a schematic diagram of the cascade connection between the LED units of the present invention; FIG. 3 is a schematic circuit diagram of the cell board of the present invention; FIG. 4 is a schematic view of a cell plate according to the present invention; the WS2812B is selected as the LED unit in this embodiment, the LED units 1 are sequentially connected end to end in series and fixed on the front surface of the unit board 2, and no other electrical devices are required on the periphery, thereby ensuring the simplicity of the circuit and realizing high-efficiency production.

The signal lines and the power lines of the LED units 1 are cascaded end to end, so that the using amount of the wires is saved, the voltage lost on the wires is reduced by the shorter power lines, the LED lamps 10 at the ends of the unit boards 2 can uniformly emit light, and the possibility of interference of the signals in the transmission process is reduced by the shorter signal lines; the power supply is powered by the driving power supply, and different light-emitting effects are changed by inputting control signals.

Fig. 5 is a schematic circuit diagram of an LED unit of the present invention, which includes an LED lamp 10 and a control chip WS 281111;

the red anode end of the LED lamp 10 is connected with a 5V power supply through a resistor R3, a green anode end and a blue anode end;

the VDD pin of the control chip WS281111 is connected with a 5V power supply through a resistor R3, is connected with GND through a diode D1 and is connected with the ground through a capacitor C1;

the OUTR pin of the control chip WS281111 is connected with the red cathode terminal of the LED lamp 10;

the OUTG pin of the control chip WS281111 is connected with the green cathode end of the LED lamp 10 through a resistor R6;

the OUTB pin of the control chip WS281111 is connected with the blue cathode terminal of the LED lamp 10;

the DI pin of the control chip WS281111 is connected to the DO pin of the control chip WS281111 of the other LED unit 1 through a resistor R2;

the DO pin of the control chip WS2811 is connected to the DI pin of the control chip WS281111 of the other LED unit 1 through a resistor R1.

Further, the unit board 2 is made of FPC substrate, the common FPC is mainly composed of two materials, namely a base material and a protective film, the base material is mainly formed by combining PI or PET, glue and copper, the PI is a polyimide insulating resin material, the high temperature resistance and the bending performance are good, the reliability of the produced product is good, the price of the product is more than 2 times that of the PET, the PI is a main material of the FPC, the PET is a polyester insulating resin material, and fig. 6 is an installation form display diagram of the utility model.

Further, the unit board 2 is composed of a plurality of LEDs, the LED package size can be customized to 2020, 3535, 5050 and the like according to the actual requirements of users, and the display screen can realize the cascade connection of 12 unit boards 2 at most.

Further, the LED pitch of the unit board 2 may be P6 to P100.

Fig. 7 is the schematic diagram of the position of the heat-conducting adhesive tape of the present invention, the back of the unit plate 2 is fixed with heat-conducting silica gel, which can be attached to the outer surface of the carrier completely, and this kind of fixing mode not only plays the role of fixing between the carrier and the substrate, but also plays the role of heat dissipation for the substrate and the LED.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a conformal display screen by flexible substrate constitution which characterized in that: comprises a plurality of LED units (1) and a unit plate (2);

the LED units (1) are sequentially connected end to end in series and are fixed on the front surface of the unit plate (2);

the LED unit (1) comprises an LED lamp (10) and a control chip WS2811 (11);

the red anode end of the LED lamp (10) is connected with a 5V power supply through a resistor R3, a green anode end and a blue anode end;

the VDD pin of the control chip WS2811(11) is connected with a 5V power supply through a resistor R3, is connected with the ground through a diode D1 and is connected with the ground through a capacitor C1;

the OUTR pin of the control chip WS2811(11) is connected with the red cathode end of the LED lamp (10);

the OUTG pin of the control chip WS2811(11) is connected with the green cathode end of the LED lamp (10) through a resistor R6;

the OUTB pin of the control chip WS2811(11) is connected with the blue cathode end of the LED lamp (10);

the DI pin of the control chip WS2811(11) is connected with the DO pin of the control chip WS2811(11) of other LED units through a resistor R2;

the DO pin of the control chip WS2811(11) is connected with the DI pin of the control chip WS2811(11) of other LED units through a resistor R1.

2. A conformal display screen comprised of a flexible substrate according to claim 1, wherein: the unit board (2) adopts an FPC substrate.

3. A conformal display screen comprised of a flexible substrate according to claim 1, wherein: the number of the LED units (1) connected in series is within 1024.

4. A conformal display screen comprised of a flexible substrate according to claim 1, wherein: and heat-conducting silica gel is fixed on the back surface of the unit plate (2).

5. A conformal display screen comprised of a flexible substrate according to claim 1, wherein: the distance between the LED lamps (10) is P6-P100.