CN213659425U - Anti-interference display screen - Google Patents
Anti-interference display screen Download PDFInfo
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- CN213659425U CN213659425U CN202022980207.3U CN202022980207U CN213659425U CN 213659425 U CN213659425 U CN 213659425U CN 202022980207 U CN202022980207 U CN 202022980207U CN 213659425 U CN213659425 U CN 213659425U
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Abstract
The application relates to the field of display equipment, in particular to an anti-interference display screen. The display screen convenient for anti-interference comprises a display screen main body, wherein a processor is arranged on the display screen main body and electrically connected with a touch screen; the processor is electrically connected with a two-in-one interface module for inputting integrated liquid crystal display signals and touch screen control signals. The application has the effects of good anti-interference performance and good stability in use.
Description
Technical Field
The application relates to the field of display equipment, in particular to an anti-interference display screen.
Background
At present, liquid crystal display screens are one of flat panel displays. The screen display device is used for screen display of televisions and computers. The display screen has the advantages of low power consumption, small size and low radiation.
The existing liquid crystal display screen is generally provided with two interfaces which are respectively used for inputting integrated liquid crystal display signals and touch screen control signals, so that the two interfaces are required to be connected with electric wires when the liquid crystal display screen is in actual use, and the electric wires respectively connected with the two interfaces can generate certain interference with each other in actual use.
With respect to the related art in the above, the inventors consider that there is a drawback that the wires respectively connected to the two interfaces interfere with each other to some extent in practical use.
Disclosure of Invention
In order to solve the electric wire that two interfaces are connected respectively and can produce the condition of certain interference each other in-service use, this application provides an anti-interference display screen.
The application provides a pair of display screen convenient to it is anti-interference adopts following technical scheme:
a display screen convenient for interference resistance comprises a display screen main body, wherein a processor is arranged on the display screen main body and electrically connected with a touch screen; the processor is electrically connected with a two-in-one interface module for inputting integrated liquid crystal display signals and touch screen control signals.
Through adopting above-mentioned technical scheme, two unification interface module can make this display screen only need connect an electric wire when using alright realize integrated liquid crystal display signal and touch-sensitive screen control signal's input, and an electric wire can not produce the interference each other like two electric wires to the interference killing feature of this anti-interference display screen of being convenient for is good.
Optionally, the touch screen is a capacitive touch screen, and a capacitive touch screen control circuit is electrically connected between the capacitive touch screen and the processor;
the capacitive touch screen control circuit is used for converting touch signals received by the capacitive touch screen into control signals and outputting the control signals to the processor.
By adopting the technical scheme, the service life of the capacitive touch screen is longer, and meanwhile, the light transmittance and the definition of the capacitive touch screen are superior to those of a resistive touch screen.
Optionally, the display screen main body is further electrically connected with a linear voltage-stabilized power supply for supplying power to the display screen main body.
By adopting the technical scheme, the linear voltage-stabilized power supply has the advantages of good stability and fast load response, so that the anti-interference display screen has good stability when in use.
Optionally, the display screen main part is connected with a PCB drive board, and the processor, the two-in-one interface module and the linear voltage-stabilized power supply are all arranged on the PCB drive board.
Through adopting above-mentioned technical scheme, can all install the components and parts that treater, two unification interface module and linear constant voltage power supply correspond on the PCB drive plate during the installation, be connected PCB drive plate and display screen main part again to this anti-interference display screen assembly is comparatively convenient.
Optionally, an anti-interference piece is arranged on the PCB driving board.
By adopting the technical scheme, the anti-interference part can reduce the interference of external signals on components on the PCB driving board.
Optionally, the anti-interference piece is an anti-interference adhesive tape.
By adopting the technical scheme, the anti-interference adhesive tape is convenient to use, low in cost and easy to use.
Optionally, the two-in-one interface module includes a user interface, and a reinforcing member for keeping the PCB driver board and the user interface relatively fastened is disposed on the PCB driver board.
Through adopting above-mentioned technical scheme, because user interface need be connected with other connecting wires when using, user interface can receive the power with the opposite direction motion of PCB drive plate when the connecting wire plug, and long-term plug user interface easily breaks away from the influence with the PCB drive plate and uses, and through setting up the reinforcement, user interface and PCB drive plate can be comparatively stable keep relatively fixed, difficult separation.
Optionally, the reinforcing member is a hot melt adhesive.
By adopting the technical scheme, the hot melt adhesive is easy to obtain and convenient to use.
In summary, the present application includes at least one of the following beneficial technical effects:
the anti-interference performance of the display screen convenient for anti-interference is good;
the anti-interference display screen has good stability when in use;
the anti-interference display screen is convenient to assemble.
Drawings
Fig. 1 is a side view of a display screen convenient for interference resistance according to embodiment 1 of the present application.
Fig. 2 is a circuit schematic diagram of a processor according to embodiment 1 of the present application.
Fig. 3 is a schematic circuit diagram of an interface of a liquid crystal display panel according to embodiment 1 of the present application.
Fig. 4 is a schematic circuit diagram of a two-in-one interface module according to embodiment 1 of the present application.
Fig. 5 is a schematic circuit diagram of a capacitive touch screen control circuit according to embodiment 1 of the present application.
Fig. 6 is a schematic circuit diagram of a capacitive touch screen interface according to embodiment 1 of the present application.
Fig. 7 is a circuit schematic diagram of a linear voltage-stabilized power supply according to embodiment 1 of the present application.
Fig. 8 is a side view of a display screen convenient for interference resistance according to embodiment 2 of the present application.
Description of reference numerals: 100. a display screen main body; 200. a touch screen; 300. a PCB drive board; 400. an anti-interference adhesive tape; 500. and (5) hot melt adhesive.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
Example 1:
the embodiment of the application discloses display screen convenient to it is anti-interference. Referring to fig. 1, the display screen convenient for interference resistance includes a display screen main body 100, and the display screen main body 100 is a TFT liquid crystal display screen. The TFT liquid crystal display is connected to a touch panel 200, and the touch panel 200 is a capacitive touch panel. The connection mode of the capacitive touch screen and the TFT liquid crystal display screen can be bonding. One side that TFT liquid crystal display deviates from capacitive touch screen is equipped with PCB drive plate 300, be equipped with the treater on PCB drive plate 300, be used for converting capacitive touch screen control circuit that capacitive touch screen received into control signal output to the treater and be used for supplying integrated liquid crystal display signal and the two unification interface modules of touch screen 200 control signal input, what that this place set up means the treater, capacitive touch screen control circuit and the relevant components and parts of two unification interface modules all are located PCB drive plate 300's pad, PCB drive plate 300 is last to have simultaneously to supply the components and parts to realize the line of walking of corresponding electricity connection. The two-in-one interface module comprises a user interface for connecting and transmitting electric wires integrating liquid crystal display signals and touch screen 200 control signals, and the two-in-one interface module and the capacitive touch screen control circuit are electrically connected with the processor. Two unification interface module can make this display screen only need connect an electric wire when using alright realize integrated liquid crystal display signal and touch-sensitive screen 200 control signal's input, and an electric wire can not produce the interference each other like two electric wires to the interference killing feature of this display screen convenient to anti-interference is good.
The specific arrangement of the processor, the two-in-one interface module and the capacitive touch screen control circuit is described below.
Circuit principle of processor referring to FIG. 2, the processor comprises a chip U5 with model number LT8619B, a 1 pin of the chip U5 is electrically connected with a capacitor C30, and one end of the capacitor C30, which is far away from the 1 pin, is electrically connected with ground. The 4 pins of the chip U5 are electrically connected with a capacitor C31, and one end of the capacitor C31, which is far away from the 4 pins, is electrically connected with the ground. The 7 pins of the chip U5 are electrically connected with a capacitor C32, and one end of the capacitor C32, which is far away from the 7 pins, is electrically connected with the ground. The 10 pins of the chip U5 are electrically connected with a capacitor C33, and one end of the capacitor C32, which is far away from the 10 pins, is electrically connected with the ground. And a 13 pin of the chip U5 is electrically connected with a capacitor C35, and one end of the capacitor C35, which is far away from the 13 pin, is electrically connected with the ground. The 16 pins of the chip U5 are electrically connected with a resistor R27, and one end of the resistor R27, which is far away from the 16 pins, is electrically connected with the ground. The 20 pins of the chip U5 are electrically connected with a capacitor C41, and one end of the capacitor C41, which is far away from the 20 pins, is electrically connected with the ground. The capacitor C41 is electrically connected with a capacitor C42, one end of the capacitor C42 is connected with the connection position of the capacitor C41 and the ground, and the other end of the capacitor C42 is electrically connected with the power supply VDD 33. And a 24 pin of the chip U5 is electrically connected with a resistor R28 and a capacitor C44, one end of the resistor R28 is electrically connected with the 24 pin, and the other end of the resistor R28 is electrically connected with a power supply VDD 33. One end of the capacitor C44 is electrically connected to the 24 pin, and the other end of the capacitor C44 is electrically connected to ground. The 25 pins of the chip U5 are electrically connected with a capacitor C40, and one end of the capacitor C40, which is far away from the 25 pins, is electrically connected with the ground. The 36 pins of the chip U5 are electrically connected with a capacitor C43, and one end of the capacitor C43, which is far away from the 36 pins, is electrically connected with the ground. The 57 pin of the chip U5 is electrically connected with a capacitor C29, and one end of the capacitor C29, which is far away from the 57 pin, is electrically connected with the ground.
The 58 pin of the chip U5 is electrically connected with a capacitor C28, and one end of the capacitor C28, which is far away from the 58 pin, is electrically connected with the ground. The 59 pin of the chip U5 is electrically connected with a capacitor C24, and one end of the capacitor C24, which is far away from the 59 pin, is electrically connected with the ground. The 60 pins of the chip U5 are electrically connected with a crystal oscillator Y1 and a capacitor C19, the 60 pins of the chip U5 are electrically connected with the 1 pin of the crystal oscillator Y1, the 2 pins and the 4 pins of the crystal oscillator Y1 are both electrically connected with ground, the 3 pins of the crystal oscillator Y1 are electrically connected with a capacitor C18, and one end of the capacitor C18, which is far away from the crystal oscillator Y1, is electrically connected with ground. A resistor R22 is connected in series between the pin 1 and the pin 3 of the crystal oscillator Y1. One end of the capacitor C19 is electrically connected to pin 60 of the chip U5 and the other end is electrically connected to ground. Pin 61 of the chip U5 is electrically connected to pin 3 of the crystal Y1.
The 62 pin of the chip U5 is electrically connected with a capacitor C17, and one end of the capacitor C17, which is far away from the 62 pin, is electrically connected with the ground. The 64 pins of the chip U5 are electrically connected with a capacitor C16, and one end of the capacitor C16, which is far away from the 64 pins, is electrically connected with the ground. The 67 pin of the chip U5 is electrically connected with a capacitor C15, and one end of the capacitor C15, which is far away from the 67 pin, is electrically connected with the ground. Pin 77 of chip U5 is connected to ground.
Pins 39-52 of the chip U5 are used for outputting RGB signals to the display screen main body 100 to control the image display of the display screen main body 100. The chip U5 and the display main body 100 are connected through a liquid crystal display interface J3, and the specific circuit structure of the liquid crystal display interface J3 is as follows.
Referring to fig. 3, the liquid crystal interface J3 is a 40pin interface, and the liquid crystal interface J3 is electrically connected to an input terminal of the display main body 100 through an FPC. The circuit schematic diagram of the lcd interface J3 is shown in fig. 3. The 4 pins of the liquid crystal display interface J3 are electrically connected with ground, the 5 pins of the liquid crystal display interface J3 are electrically connected with one ends of the capacitor C20 and the capacitor C21, and the other ends of the capacitor C20 and the capacitor C21 are connected with ground. Pins 39-52 of the chip U5 are connected with corresponding RGB signals of pins 5-28 of the LCD interface J3. The 29 pin of the liquid crystal display interface J3 is grounded, the 30 pin is electrically connected with the 56 pin of the chip U5, the 32 pin is electrically connected with the 54pin of the chip U5, the 33 pin is electrically connected with the 55 pin of the chip U5, and the 34 pin is electrically connected with the 53 pin of the chip U5. With this arrangement, the processor can process the received signal and transmit a signal for controlling the display main body 100 to display a corresponding image through the liquid crystal display interface J3, thereby enabling image display control of the display main body 100.
In addition, the circuit principle of the two-in-one interface module is shown in fig. 4, the two-in-one interface module includes a user interface J11, and the user interface J11 is a 54pin interface. The singular pins of the user interface J11 are all electrically connected. The 4 pins, 12 pins, 18 pins, 20 pins, 26 pins, 28 pins, 34 pins, 36 pins, 42 pins, 48 pins and 54 pins of the user interface J11 are all electrically connected with the ground. The 2 pins of the user interface J11 are electrically connected with the 74 pins of the chip U5, the 6 pins are electrically connected with the 75 pins of the chip U5, and the 8 pins are electrically connected with the 76 pins of the chip U5. The 14 pin of the user interface J11 is electrically connected with the 2 pin of the chip U5, the 16 pin is electrically connected with the 3 pin of the chip U5, the 22 pin is electrically connected with the 5 pin of the chip U5, the 24 pin is electrically connected with the 6 pin of the chip U5, the 30 pin is electrically connected with the 8 pin of the chip U5, the 32 pin is electrically connected with the 9 pin of the chip U5, the 38 pin is electrically connected with the 11 pin of the chip U5, and the 40pin is electrically connected with the 12 pin of the chip U5. Therefore, the two-in-one interface module can realize the input of the integrated liquid crystal display signal and transmit the integrated liquid crystal display signal to the processor.
Further, the circuit principle of the capacitive touch screen control circuit is as shown in fig. 5, the capacitive touch screen control circuit includes a chip U1, the specific model of the chip U1 is CH554T, a pin 5 of the chip U1 is electrically connected to a pin 31 of the liquid crystal display interface J3, a pin 7 is electrically connected to a pin 66 of the chip U5, and a pin 8 is electrically connected to a pin 65 of the chip U5. The 50 pins of the user interface J11 are electrically connected to the 15 pins of the chip U1, and the 52 pins are electrically connected to the 14 pins of the chip U1. Therefore, the two-in-one interface module can realize the input of the control signal of the touch screen 200.
To sum up, this display screen only need connect an electric wire and be connected with user interface J11 when using alright realize integrated liquid crystal display signal and touch-sensitive screen 200 control signal's input, an electric wire can not produce the interference each other like two electric wires to the interference killing feature of this display screen of being convenient for anti-jamming is good.
In addition, the capacitive touch screen control circuit is electrically connected with a capacitive touch screen interface, and the capacitive touch screen interface is used for being connected with a corresponding pin of the capacitive touch screen through an FPC. The circuit principle of the capacitive touch screen interface is shown in fig. 6. The capacitive touch screen interface comprises an interface J1, wherein a pin 1 of the interface J1 is electrically connected with a pin 2 of a chip U1, a pin 4 is electrically connected with a pin 1 of a chip U1, a pin 5 is electrically connected with a pin 3 of a chip U1, and a pin 6 is electrically connected with a pin 4 of a chip U1. The 2 pin of the interface J1 is electrically connected to the power supply of 3V 3. Meanwhile, the 2 pins of the interface J1 are electrically connected with a capacitor C3 and a capacitor C4, and the ends of the capacitor C3 and the capacitor C4, which are away from the 2 pins of the interface J1, are both connected with the ground. The 5 pins of the interface J1 are also electrically connected with a resistor R4, and one end of the resistor R4, which is far away from the 5 pins, is electrically connected with a power supply of 3V 3. The 6 pins of the interface J1 are also electrically connected with a resistor R5, and one end of the resistor R5, which is far away from the 6 pins, is electrically connected with a power supply of 3V 3. Therefore, the capacitive touch screen interface can transmit the signal output by the capacitive touch screen control circuit to the capacitive touch screen.
The display panel main body 100 is also electrically connected to a linear voltage regulator for supplying power to the display panel main body 100. Relevant components of the linear voltage-stabilized power supply are arranged on the PCB driving board 300, and meanwhile, wiring for connecting the components is arranged on the PCB driving board 300. Referring to fig. 7, the linear regulated power supply includes a chip U7, a chip U7 with a model number RT9193, and a chip U7 with a pin 1 connected to a 5V power supply, where the 5V power supply may be an external power supply. The 3 pins of the chip U7 are electrically connected with a resistor R27, and one end of the resistor R27, which is far away from the 3 pins, is electrically connected with the ground. A capacitor C45 is connected in series between the 1 pin of the chip U7 and the ground. The 2 pin of chip U7 is connected to ground. A capacitor C47 is connected in series between the 5 pins of the chip U7 and the ground, and the 5 pins of the chip U7 are electrically connected with the 4 pins of the liquid crystal display interface J3. Therefore, the linear voltage regulator can convert the externally connected 5V voltage into a voltage for the operation of the display screen main body 100 and transmit the voltage to the display screen main body 100 through the lcd interface J3. The linear voltage-stabilized power supply has the advantages of good stability and fast load response, so that the anti-interference display screen has good stability when in use.
The implementation principle of the embodiment 1 of the application is as follows: two unification interface module can make this display screen only need connect an electric wire when using alright realize integrated liquid crystal display signal and touch-sensitive screen 200 control signal's input, and an electric wire can not produce the interference each other like two electric wires to the interference killing feature of this display screen convenient to anti-interference is good.
Example 2:
the present embodiment is different from embodiment 1 in that, referring to fig. 8, in order to reduce the external interference to the PCB driving board 300, an anti-interference tape 400 is attached to the PCB driving board 300. The anti-interference tape 400 can reduce the interference of external signals on the components on the PCB driving board 300. Meanwhile, the anti-interference adhesive tape 400 is convenient to use, low in cost and easy to use.
Finally, referring to fig. 8, the user interface J11 is usually soldered on the PCB driver board 300, and the user interface J11 needs to be connected to other connecting lines when in use, the user interface J11 is subjected to a force of moving in a direction opposite to that of the PCB driver board 300 when the connecting lines are plugged in and pulled out, and the pad connected to the user interface J11 on the PCB driver board 300 is easily detached to affect use after the user interface J11 is plugged in and pulled out for a long time. In order to make the connection between the user interface J11 and the PCB driver board 300 more stable, a hot melt adhesive 500 is disposed at the connection between the user interface J11 and the PCB driver board 300, and the hot melt adhesive 500 is partially adhered to the user interface J11 and partially adhered to the PCB driver board 300, so that when the user interface J11 is stressed, a part of the stress is transferred to the hot melt adhesive 500 instead of being transferred to the pad where the user interface J11 is connected to the PCB driver board 300, and thus the user interface and the PCB driver board 300 can be relatively stably maintained and are not easily separated.
The implementation principle of embodiment 2 of the present application is as follows: the anti-interference tape 400 can reduce the interference of external signals on the components on the PCB driving board 300. The hot melt adhesive 500 enables the user interface J11 and the PCB driving board 300 to be relatively stably maintained and not easily separated.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. An anti-jamming display screen, includes display screen main part (100), its characterized in that: the display screen main body (100) is provided with a processor, and the processor is electrically connected with the touch screen (200); the processor is electrically connected with a two-in-one interface module for inputting integrated liquid crystal display signals and control signals of the touch screen (200).
2. The tamper resistant display screen of claim 1, wherein: the touch screen (200) is a capacitive touch screen, and a capacitive touch screen control circuit is electrically connected between the capacitive touch screen and the processor;
the capacitive touch screen control circuit is used for converting touch signals received by the capacitive touch screen into control signals and outputting the control signals to the processor.
3. The tamper resistant display screen of claim 2, wherein: the display screen main body (100) is also electrically connected with a linear stabilized voltage power supply for supplying power to the display screen main body (100).
4. The tamper resistant display screen of claim 3, wherein: the display screen main part (100) is connected with a PCB (printed circuit board) driving board (300), and the processor, the two-in-one interface module and the linear voltage-stabilized power supply are all arranged on the PCB driving board (300).
5. The tamper resistant display screen of claim 4, wherein: and an anti-interference piece is arranged on the PCB driving board (300).
6. The tamper resistant display screen of claim 5, wherein: the anti-interference piece is an anti-interference adhesive tape (400).
7. The tamper resistant display screen of claim 6, wherein: the two-in-one interface module comprises a user interface, and a reinforcing member used for keeping the PCB driving board (300) and the user interface relatively fastened is arranged on the PCB driving board (300).
8. The tamper resistant display screen of claim 7, wherein: the reinforcing member is a hot melt adhesive (500).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022980207.3U CN213659425U (en) | 2020-12-10 | 2020-12-10 | Anti-interference display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022980207.3U CN213659425U (en) | 2020-12-10 | 2020-12-10 | Anti-interference display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213659425U true CN213659425U (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022980207.3U Active CN213659425U (en) | 2020-12-10 | 2020-12-10 | Anti-interference display screen |
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| Country | Link |
|---|---|
| CN (1) | CN213659425U (en) |
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- 2020-12-10 CN CN202022980207.3U patent/CN213659425U/en active Active
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