CN212516352U - Novel picture and text display device - Google Patents

Abstract

The utility model discloses a novel image-text display device, which comprises a first transparent layer, a second transparent layer, a display system and a controller, wherein the display system comprises a dielectric layer, a conductive layer, a matrix control circuit unit and a plurality of electrostatic films, the conductive layer and the dielectric layer are sequentially covered on the first transparent layer, the electrostatic films are arranged in a matrix and are all connected into the matrix control circuit unit, and the electrostatic films are all arranged on the dielectric layer; the controller can provide voltage with opposite polarity to at least one electrostatic film to the conductive layer through the matrix control circuit unit, so that part or all of the electrostatic film is converted from an original curling state to a partially unfolded state or a fully unfolded state. The device provided by the utility model utilize the static membrane to replace LED lamp and diode to carry out picture and text demonstration, safe and reliable, display system have anti ultraviolet, prevent infrared function, do not need under the display condition, can be used to applications such as sunshade, privacy.

Description

Novel picture and text display device

Technical Field

The utility model relates to a picture and text display field especially relates to a novel picture and text display device.

Background

The existing image-text display devices have two types, one is to use color light to illuminate the image-text on the panel to realize static display, and the effect of color conversion and flow is not generated; the other is that the integrated block is used for controlling a plurality of light-emitting diodes which are arranged into pictures and texts to regularly emit light, but the display device has little color change, monotony and poor dynamic sense; because the diode has larger volume, the displayed resolution ratio is low and the image-text is poor; moreover, the diode has large power consumption and is easy to damage to cause dangers such as electric leakage and the like; in addition, the integrated block is also easily affected by temperature to cause program confusion or failure, and the control is not reliable.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems of the prior art, the utility model provides a novel picture and text display device prevents that the film from accumulating static, technical scheme is as follows:

the utility model provides a novel image-text display device, which comprises a first transparent layer, a second transparent layer, a display system and a controller; the first transparent layer and the second transparent layer are arranged oppositely, the display system is arranged between the first transparent layer and the second transparent layer and comprises a dielectric layer, a conducting layer, a matrix control circuit unit and a plurality of electrostatic films, the conducting layer and the dielectric layer sequentially cover the first transparent layer, the electrostatic films are arranged in a matrix and are connected into the matrix control circuit unit, and the electrostatic films are arranged on the dielectric layer;

the controller can provide voltage with opposite polarity to at least one electrostatic film to the conductive layer through the matrix control circuit unit, so that part or all of the electrostatic film is converted into a partially unfolded state or a fully unfolded state from an original curled state, and the electrostatic film in the unfolded state is used for image-text display.

Furthermore, the electrostatic films arranged in a matrix have m rows and n columns, and the electrostatic films in each row are connected in parallel at two ends of the matrix control circuit unit; the electrostatic films on each column are connected in parallel at two ends of the matrix control circuit unit, the matrix control circuit unit is provided with a switch port on a circuit where the electrostatic films on each row and each column are located, and the switch ports can enable the electrostatic films on the rows or the columns to be powered on or off simultaneously.

The power supply is used for supplying power to the controller and the display system, the power supply comprises a constant voltage source, an H-bridge control module and a constant current module, the constant voltage source, the H-bridge control module, the constant current module and the display system are sequentially connected, the H-bridge control module is used for outputting positive and negative alternating voltage, and the constant current module is used for constant current control.

Furthermore, one end of the matrix control circuit unit is connected with the first output end of the H-bridge control module through the constant current module, and the other end of the matrix control circuit unit is connected with the second output end of the H-bridge control module.

Furthermore, a single chip microcomputer module is arranged on the controller and comprises a micro control unit, a switch device, a driving device and a human-computer interaction unit, and the switch device, the driving device and the human-computer interaction unit are all connected into the micro control unit.

Further, the switch ports are connected to the switch devices, and the micro control unit controls the expansion state of one or more electrostatic membranes through the switch devices.

Furthermore, the H-bridge control module comprises a plurality of MOS tubes, the grids of the MOS tubes are connected to the micro control unit, and the micro control unit can adjust the voltage output by the H-bridge control module through the grids of the MOS tubes.

The display system further comprises a light guide plate assembly, the light guide plate assembly is arranged on the second transparent layer, light emitted by the light guide plate assembly faces the display system, and the micro control unit controls the on-off and the output power of the light guide plate assembly through the driving device.

The system further comprises a human-computer interface component connected with the human-computer interaction unit, wherein the human-computer interface component is used for inputting pictures and texts to be displayed, and the human-computer interface component can be in data communication with the human-computer interaction unit.

Further, the electrostatic films are quadrilateral after being completely unfolded, the side length ranges of the electrostatic films are all 50-100 μm, and the distance between the adjacent completely unfolded electrostatic films is not more than 5 μm.

The utility model provides a beneficial effect that technical scheme brought as follows:

a. the electrostatic film is used for replacing an LED lamp and a diode to display pictures and texts, so that the safety and the reliability are realized;

b. the display system has the ultraviolet-proof and infrared-proof functions, and can be used for application such as sun shading, privacy and the like under the condition of not needing display;

c. the display technology has low power consumption and saves energy consumption;

d. the display system is less influenced by external environmental factors, so the service life is longer;

e. the matrix type switch control reduces the number of switching devices, saves the cost and has high resource utilization rate;

f. under the condition of more light, the pictures and texts are displayed, the display is clearer by increasing the backlight, and the pictures and texts are also displayed clearly in the daytime;

g. has the functions of sun shading and heat insulation, and can also play the role of sun shading and heat insulation when pictures and texts are displayed.

Drawings

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

Fig. 1 is a schematic structural cross-sectional view of a novel image-text display device provided by an embodiment of the present invention;

fig. 2 is a schematic diagram of an electrostatic film matrix arrangement provided by an embodiment of the present invention;

fig. 3 is a schematic control diagram of a module of the novel image-text display device according to an embodiment of the present invention;

fig. 4 is a schematic circuit diagram of an H-bridge control module according to an embodiment of the present invention;

fig. 5 is a schematic circuit diagram of a constant current module according to an embodiment of the present invention;

fig. 6 is a schematic circuit diagram of a display system according to an embodiment of the present invention;

fig. 7 is a schematic circuit diagram of a single chip microcomputer module provided by the embodiment of the present invention.

Wherein the reference numerals include: 1-an electrostatic film, 2-a dielectric layer, 3-a transparent conductive layer, 4-a first transparent layer, 5-a second transparent layer, 6-a light guide plate assembly, 7-a power supply, 8-a controller, 9-a spacer, 10-a switch port, 11-a first end, 12-a second end, 211-a first MOS transistor, 212-a second MOS transistor, 221-a first resistor, 222-a second resistor, 231-a first transistor, 232-a second transistor, 233-a third transistor, 234-a fourth transistor, 241-a first operational amplifier, 242-a second operational amplifier, 25-a reference ground, 26-a first port, 27-a second port, 41-a third MOS transistor, 42-a fourth MOS transistor, 43-a fifth MOS transistor, 44-sixth MOS transistor, 46-first output terminal, 47-second output terminal.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.

In an embodiment of the present invention, a novel image-text display device is provided, see fig. 1, including a first transparent layer 4, a second transparent layer 5, a display system and a controller 8; the first transparent layer 4 and the second transparent layer 5 are oppositely arranged, the display system is arranged between the first transparent layer 4 and the second transparent layer 5, the display system comprises a dielectric layer 2, a conductive layer 3, a matrix control circuit unit and a plurality of electrostatic films 1, the conductive layer 3 and the dielectric layer 2 sequentially cover the first transparent layer 4, the electrostatic films 1 are arranged in a matrix and are all connected with the matrix control circuit unit, the electrostatic films 1 are all arranged on the dielectric layer 2, referring to fig. 2, the electrostatic films 1 are arranged in a matrix with m rows and n columns, the electrostatic films 1 on each row are all connected with two ends of the matrix control circuit unit in parallel, the electrostatic films 1 on each column are all connected with two ends of the matrix control circuit unit in parallel, referring to fig. 6, the matrix control circuit unit is provided with a switch port 10 on each row and each column of the circuit where the electrostatic films 1 are located, the switch port 10 can make the electrostatic films 1 on the row or the column in which the switch port is positioned simultaneously powered on or off;

the controller 8 can provide a voltage with opposite polarity to the conducting layer 3 and at least one electrostatic film 1 through the matrix control circuit unit, so that part or all of the electrostatic film 1 is converted from an original curling state to a partially unfolded state or a fully unfolded state, and the electrostatic film 1 in the unfolded state is used for displaying pictures and texts. The conductive layer 3 and the dielectric layer 2 are transparent, and the electrostatic film 1 is opaque, and the curled state of the electrostatic film 1 is a curled state in a natural state, and after power is applied, the electrostatic film 1 and the conductive layer 3 are charged with different electric charges, so that the electrostatic film 1 is changed into a flat state against the curling force of itself by the principle of opposite attraction.

Specifically, the electrostatic film 1 is a quadrangle after being completely unfolded, the side length of the quadrangle ranges from 50 to 100 μm, preferably, the quadrangle has a side length of 60 μm, and the distance between the adjacent completely unfolded electrostatic films 1 is not more than 5 μm.

In an embodiment of the present invention, the display device further includes a power supply 7, the power supply 7 is used for supplying power to the controller 8 and the display system, the power supply 7 includes a constant voltage source, an H-bridge control module and a constant current module, see fig. 3, the constant voltage source, the H-bridge control module, the constant current module and the display system are sequentially connected, the constant voltage source adopts the existing Boost technology, and also can adopt the chip flyback scheme of a professional chip LT3751, and can output a stable voltage, the constant voltage source provides a stable bus voltage to the H-bridge control module, the H-bridge control module is used for outputting a positive and negative alternating voltage, the H-bridge control module includes a plurality of MOS transistors, preferably 4, and the constant current module is used for constant current control; one end of a matrix control circuit unit in the display system is connected with a first output end 46 of the H-bridge control module through the constant current module, and the other end of the matrix control circuit unit is connected with a second output end 47 of the H-bridge control module.

In an embodiment of the present invention, a single chip module is disposed on the controller 8, see fig. 7, the single chip module includes a micro control unit, a switch device, a driving device and a human-computer interaction unit, and the switch device, the driving device and the human-computer interaction unit are all connected to the micro control unit; the switch ports 10 are connected to the switch devices, and the micro control unit controls the expansion state of one or more electrostatic membranes 1 through the switch devices; the grid of MOS pipe all connects into little the control unit, little the control unit can pass through the grid of MOS pipe adjusts the voltage of H bridge control module output.

In an embodiment of the present invention, referring to fig. 1 and fig. 7, the display device further includes a light guide plate assembly, the light guide plate assembly is disposed on the second transparent layer 5, the light emitted from the light guide plate assembly faces the display system, and the micro control unit controls the switch and the output power of the light guide plate assembly through the driving device.

In an embodiment of the present invention, referring to fig. 3, the present invention further includes a human-computer interface component connected to the human-computer interaction unit, the human-computer interface component is used for inputting the graphics to be displayed, and the human-computer interface component can perform data communication with the human-computer interaction unit. The human-computer interface component can adopt an LCD touch screen scheme and can also adopt communication modes such as a serial port and the like, and a user inputs content information to be displayed, so that the content information is fed back to the single chip microcomputer module to carry out instruction execution and finally displayed in a display system.

In an embodiment of the present invention, the first transparent layer 4 and the second transparent layer 5 are separated by the spacer 9, the spacer 9 and the adjacent transparent layer can form a cavity, the cavity is sealed by silica gel to form an enclosed space, the enclosed space can accommodate the electrostatic film 1 and expand from the curling shape and cover the motion process of the first transparent layer 4, and the enclosed space can be filled with inert gas or vacuumized to realize heat insulation and sound insulation. The transparent layer is made of a light-transmitting material, preferably a glass plate, the spacer is preferably a super spacer, the silicone is preferably a bi-component silicone, and the number of the transparent layer, the silicone and the spacer in the embodiment includes, but is not limited to, the above number.

In an embodiment of the present invention, the H-bridge control module has a first output end 46 and a second output end 47, the first output end 46 is connected to the first port 26 of the constant current module 2, the second port 27 of the constant current module is connected to the first end 11 of the matrix control circuit unit, the second end 11 of the matrix control circuit unit is connected to the second output end 47 of the H-bridge control module through the dielectric layer 2 and the conductive layer 3. Under the control of the single chip microcomputer module, the first output end 46 and the second output end 47 of the H-bridge control module are subjected to voltage alternating switching, and the constant current module is used for controlling the current output by the constant current module to keep constant.

Referring to fig. 4, the H-bridge control module includes a third MOS transistor 41, a fourth MOS transistor 42, a fifth MOS transistor 43, and a sixth MOS transistor 44, where the third MOS transistor 41 and the fourth MOS transistor 42 are disposed on a first branch between a bus voltage end and a ground end of the H-bridge control module, the fifth MOS transistor 43 and the sixth MOS transistor 44 are disposed on a second branch between the bus voltage end and the ground end, the first output end 46 is disposed between the third MOS transistor 41 and the fourth MOS transistor 42, and the second output end 47 is disposed between the fifth MOS transistor 43 and the sixth MOS transistor 44;

the gate of the third MOS transistor 41, the gate of the fourth MOS transistor 42, the gate of the fifth MOS transistor 43, and the gate of the sixth MOS transistor 44 are respectively connected to the single chip microcomputer module, and the single chip microcomputer module controls the third MOS transistor 41 and the sixth MOS transistor 44 to be turned on and the fourth MOS transistor 42 and the fifth MOS transistor 43 to be turned off, or the single chip microcomputer module controls the fourth MOS transistor 42 and the fifth MOS transistor 43 to be turned on and the third MOS transistor 41 and the sixth MOS transistor 44 to be turned off, specifically, referring to fig. 4, when the marks S1 and S4 are high, the third MOS transistor 41 and the sixth MOS transistor 44 are turned on, when the marks S2 and S3 are low, the fourth MOS transistor 42 and the fifth MOS transistor 43 are turned off, the first output end 46 is positive, and the second output end 47 is grounded; when the high level is marked at S2 and S3, the fourth MOS transistor 42 and the fifth MOS transistor 43 are turned on, and when the low level is marked at S1 and S4, the third MOS transistor 41 and the sixth MOS transistor 44 are turned off, the second output terminal 47 is positive, the first output terminal 46 is grounded, and thus, the positive-negative alternating voltage output is generated between the first output terminal 46 and the second output terminal 47.

The drain of the third MOS transistor 41 is connected to the bus voltage terminal, the source of the third MOS transistor 41 is connected to the drain of the fourth MOS transistor 42, and the source of the fourth MOS transistor 42 is connected to the ground terminal; the drain of the fifth MOS transistor 43 is connected to the bus voltage terminal, the source of the fifth MOS transistor 43 is connected to the drain of the sixth MOS transistor 44, and the source of the sixth MOS transistor 44 is connected to the ground terminal, where it should be noted that the Vbus terminal marked in fig. 4 is the bus voltage terminal of the H-bridge control module.

In an embodiment of the present invention, referring to fig. 5, the constant current module includes a first MOS transistor 211, a second MOS transistor 212, a first resistor 221, a second resistor 222, a first transistor 231, a second transistor 232, a third transistor 233, a fourth transistor 234, a first operational amplifier 241 and a second operational amplifier 242, the first resistor 221 and the second resistor 222 are connected in series to form a third branch, an intermediate connection point of the first resistor 221 and the second resistor 222 is connected to a reference ground 25, a drain of the first MOS transistor 211 is connected to the first port 26, a source of the first MOS transistor 211 is connected to one end of the third branch, the other end of the third branch is connected to a source of the second MOS transistor 212, and a drain of the second MOS transistor 212 is connected to the second port 27;

a voltage sampling point between the first MOS transistor 211 and the first resistor 221 is connected to an inverting input terminal of the first operational amplifier 241, a voltage sampling point between the second MOS transistor 212 and the second resistor 222 is connected to the inverting input terminal of the second operational amplifier 242, the non-inverting input terminals of the first operational amplifier 241 and the second operational amplifier 242 are both connected to a reference voltage, the output terminal of the first operational amplifier 241 is connected to the bases of the first transistor 231 and the second transistor 232, the output end of the second operational amplifier 242 is connected to the bases of the third transistor 233 and the fourth transistor 234, the emitter of the first transistor 231 and the emitter of the second transistor 232 are both connected to the gate of the first MOS transistor 211, and the emitter of the third transistor 233 and the emitter of the fourth transistor 234 are both connected to the gate of the second MOS transistor 212.

In an embodiment of the present invention, in the process of text and text, the single chip module sequentially controls the energization state of each electrostatic film 1 in each row or column by column, after the single chip module completes the control in row by row or column by column, the text and text inputted by the user can be displayed as a whole, the time interval for controlling each row or column of electrostatic films 1 is very short, preferably 20ms, because the electrostatic films 1 are turned off after being electrified and unfolded, and less electrostatic residue exists, so that even if the electrostatic films 1 are turned off after being unfolded, the voltage can be maintained for a period of unfolding time, and then the electrostatic films gradually recover to be curled along with the dissipation of the residual static electricity, specifically, the switch ports on the first column of electrostatic films 1 are opened, the switch ports on the other columns are closed, and according to the first column of pixel information of the text and text inputted by the user, the micro control unit controls the switch ports on each row to display the first column of pixel information of the text and, then the switch ports on the second column of the electrostatic film 1 are opened, the switch ports on other columns are closed, according to the second column of pixel information of the user input pictures and texts, the micro control unit displays the second column of pixel information of the user input pictures and texts by controlling the switch ports on each row, sequentially displays the pixel information on the corresponding columns of the user input pictures and texts row by row, and finally realizes the display of the whole pattern, so that the control flow is continuously repeated as a period to realize the long-time display, and the display can also be carried out row by row similarly; the micro control unit can also realize backlight adjustment of the displayed pictures and texts by controlling the light guide plate assembly 6 according to the external illumination condition.

The utility model provides a novel picture and text display device according to the display content that the user set for, exert electric field control to the electrostatic film of display segment, the electrostatic film can expand, cancel the electric field to the electrostatic film of non-display segment, the film is retrieved, the LED display in market is replaced to this kind of technique, wherein when external light is stronger, light guide plate subassembly does not open, when external light is brighter, light guide plate subassembly opens the reinforcing and shows, light guide plate subassembly consumption colour can change, and the consumption is lower; in the existing LED image-text display, the contrast ratio is low in daytime display, and the contrast ratio is higher by using the image-text display device, so that the defect of the existing display in the market is overcome.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A novel image-text display device is characterized by comprising a first transparent layer (4), a second transparent layer (5), a display system and a controller (8); the first transparent layer (4) and the second transparent layer (5) are arranged oppositely, the display system is arranged between the first transparent layer (4) and the second transparent layer (5), the display system comprises a dielectric layer (2), a conductive layer (3), a matrix control circuit unit and a plurality of electrostatic films (1), the conductive layer (3) and the dielectric layer (2) are sequentially covered on the first transparent layer (4), the electrostatic films (1) are arranged in a matrix and are connected into the matrix control circuit unit, and the electrostatic films (1) are arranged on the dielectric layer (2);

the controller (8) can provide voltages with opposite polarities to the conductive layer (3) and at least one electrostatic film (1) through the matrix control circuit unit, so that part or all of the electrostatic film (1) is converted from an original curling state into a partially unfolded state or a fully unfolded state, and the electrostatic film (1) in the unfolded state is used for image and text display.

2. The novel graphic display device according to claim 1, characterized in that the electrostatic films (1) arranged in a matrix have m rows and n columns, and the electrostatic films (1) on each row are connected in parallel at two ends of the matrix control circuit unit; the electrostatic films (1) on each column are connected in parallel at two ends of the matrix control circuit unit, the matrix control circuit unit is provided with a switch port (10) on a circuit where the electrostatic films (1) on each row and each column are located, and the switch port (10) can enable the electrostatic films (1) on the rows or the columns to be simultaneously powered on or off.

3. The novel image-text display device according to claim 2, further comprising a power supply (7), wherein the power supply (7) is used for supplying power to the controller (8) and the display system, the power supply (7) comprises a constant voltage source, an H-bridge control module and a constant current module, the constant voltage source, the H-bridge control module, the constant current module and the display system are sequentially connected, the H-bridge control module is used for outputting positive and negative alternating voltages, and the constant current module is used for constant current control.

4. A novel teletext display arrangement according to claim 3, characterised in that one end of the matrix control circuit unit is connected to a first output (46) of the H-bridge control module via the constant current module, and the other end of the matrix control circuit unit is connected to a second output (47) of the H-bridge control module.

5. A novel image-text display device according to claim 3, characterized in that a single-chip microcomputer module is provided on the controller (8), the single-chip microcomputer module comprises a micro-control unit, a switch device, a driving device and a human-computer interaction unit, and the switch device, the driving device and the human-computer interaction unit are all connected to the micro-control unit.

6. A new type of teletext display arrangement according to claim 5, characterised in that the switch ports (10) are each connected to the switching device, by means of which the micro control unit controls the development of one or more of the electrostatic membranes (1).

7. The novel image-text display device according to claim 5, wherein the H-bridge control module comprises a plurality of MOS tubes, the gates of the MOS tubes are connected to the micro control unit, and the micro control unit can adjust the voltage output by the H-bridge control module through the gates of the MOS tubes.

8. A novel teletext display arrangement according to claim 5, further comprising a light guide plate assembly arranged on the second transparent layer (5), light emitted by the light guide plate assembly being directed towards the display system, the micro control unit controlling the switching and output power of the light guide plate assembly via the driver device.

9. The novel image-text display device as claimed in claim 5, further comprising a human-computer interface component connected with the human-computer interaction unit, wherein the human-computer interface component is used for inputting images and texts to be displayed, and the human-computer interface component can be in data communication with the human-computer interaction unit.

10. A novel graphic display device according to claim 1, characterized in that the electrostatic films (1) are quadrilateral after being completely unfolded, the side length of each electrostatic film is 50-100 μm, and the distance between the adjacent completely unfolded electrostatic films (1) is not more than 5 μm.

Images