TWI416480B - Liquid crystal display apparatus, liquid crystal display module and driving-controlling method thereof - Google Patents

Abstract

A liquid crystal display (LCD) module includes a LCD panel, a main control board, a signal analyzing unit and a driving-controlling unit. The main control board generates an integrating signal and transmits it to the signal analyzing unit by a transmitting line. The signal analyzing unit generates a control signal, a display signal and a power signal in accordance with the integrating signal. The driving-controlling unit is electrically connected to the LCD panel and the signal analyzing unit. The driving-controlling unit receives the control signal and the display signal to control the operation of the LCD panel. In addition, a LCD apparatus and a driving-controlling method of the LCD module are also disclosed.

Description

Liquid crystal display device, liquid crystal display module and drive control method thereof

The invention relates to a display device, a display module and a driving control method thereof, in particular to a liquid crystal display device, a liquid crystal display module and a driving control method thereof.

The liquid crystal display panel is one of the commonly used display panels. Because of its high resolution, light weight, thin thickness, and low power consumption, it is widely used in various electronic products, such as televisions, computers, and mobile phones. However, the current miniaturization and simplification of products is a development trend, and in the process of modularizing a liquid crystal display panel and its surrounding hardware devices, the liquid crystal display panel must have at least an input interface such as a power source, a control signal, and a display data. Therefore, the liquid crystal display module is bulky and the circuit design is cumbersome.

Please refer to FIG. 1 , which is a schematic structural diagram of a liquid crystal display device 1 . The liquid crystal display device 1 includes a liquid crystal display module 11 and a backlight module 12 . The backlight module 12 and the liquid crystal display module disposed adjacent line 11, and emits a light L ₁ to the liquid crystal display module 11. Herein, the backlight module 12 is exemplified by a direct-type backlight module. The liquid crystal display module 11 has a liquid crystal display panel 111, a driving control unit 112 and a main control board 113.

Please refer to FIG. 1 and FIG. 2 simultaneously. FIG. 2 is a block diagram of the liquid crystal display module 11 of FIG. In controlling the liquid crystal display panel During the operation of the 111, a control unit 1113 of the main control board 113 outputs a control signal C and a display signal D to a corresponding one of the transmission lines, and one of the main control boards 113 outputs a power source. The signal P reaches a power line, and the transmission line transmits the control signal C and the display signal D to the corresponding transmission interface of the driving control unit 112, and then a timing signal T to a scan line is outputted by a timing control circuit 1121 of the driving control unit 112. The driving circuit 1122 and the data line driving circuit 1123 are configured to drive the plurality of scanning lines 1111 and the plurality of data lines 1112 of the liquid crystal display panel 111 to operate correspondingly, and the power line also transmits the power signal P to the driving control unit 112 and the liquid crystal display panel 111. The corresponding transmission interface is used to supply the power required for the drive control unit 112 and the liquid crystal display panel 111 to operate.

The main control board 113 is disposed on another circuit board, and the input interface of the general control signal C is divided into a serial input interface and a parallel input interface, and the serial input interface requires at least two. A general purpose I/O (GPIO) pin is required, and at least 8 sets of GPIO pins are required for the parallel input interface. In other words, when the control signal 112 is received by the drive control unit 112, at least two are required. Group GPIO pins. In addition, regarding the display signal, although a high speed serial interface has been used, at least four sets of GPIO pins are still required.

In the control of the liquid crystal display panel 111, the main control board 113 needs to transmit signals required for actuation by at least two transmission lines and a power line, and is also at one end of the liquid crystal display panel 111 and the drive control unit 112. A corresponding input interface is required to receive the signal transmitted via the transmission line or the power line. In this way, in the process of circuit design, the transmission line, The power line and the input interface not only occupy a certain space, but also increase the complexity of the design, and the more the input pins and the traces, the more susceptible to electromagnetic wave interference.

Therefore, how to provide a liquid crystal display device, a liquid crystal display module, and a drive control method thereof that can simplify the transfer interface is a major subject.

In view of the above problems, an object of the present invention is to provide a liquid crystal display device, a liquid crystal display module, and a drive control method thereof that can simplify a transfer interface.

To achieve the above objective, the present invention discloses a liquid crystal display module comprising a liquid crystal display panel, a main control board, a signal analysis unit and a drive control unit. The main control board generates an integrated signal. The signal analysis unit is electrically connected to the main control board via a transmission line, and the signal analysis unit receives the integrated signal transmitted via the transmission line to generate a control signal, a display signal and a power signal. The driving control unit is electrically connected to the liquid crystal display panel and the signal analyzing unit, respectively, and the driving control unit receives the control signal and the display signal to control the operation of the liquid crystal display panel.

In addition, in order to achieve the above object, a liquid crystal display device according to the present invention comprises a liquid crystal display module and a backlight module. The backlight module is disposed adjacent to the liquid crystal display module to provide a light to the liquid crystal display module. The liquid crystal display module has a liquid crystal display panel, a main control board, a signal analysis unit and a drive control unit. The main control board generates an integrated signal and transmits it to the signal analysis unit via a transmission line. Signal parsing unit To generate a control signal, a display signal and a power signal. The driving control unit is electrically connected to the liquid crystal display panel and the signal analyzing unit, respectively, and the driving control unit receives the control signal and the display signal to control the operation of the liquid crystal display panel.

Furthermore, in order to achieve the above object, a driving control method for a liquid crystal display module according to the present invention comprises the steps of: transmitting an integrated signal by a transmission line; receiving an integrated signal by a signal analyzing unit, and generating a control signal, Displaying a signal and a power signal; and receiving a control signal, a display signal and a power signal by a driving control unit to drive a liquid crystal display panel to operate.

As described above, the liquid crystal display device, the liquid crystal display module and the driving control method thereof of the present invention integrate the control signal, the display signal and the power signal into an integrated signal, and the integrated signal can be extracted from only one transmission line. The main control board is transferred to the liquid crystal display panel to control the operation of the liquid crystal display panel. Compared with the prior art, the present invention reduces the transmission interface such as lines, traces and pins required for transmitting signals, and simplifies the number and volume of transmission interfaces such as lines, traces and pins, so that the liquid crystal The display device and the liquid crystal display module are compact in size and simple in design.

Hereinafter, a liquid crystal display device, a liquid crystal display module, and a driving control method thereof according to a preferred embodiment of the present invention will be described with reference to the related drawings.

First, please refer to FIG. 3, which is a schematic structural view of a liquid crystal display device 2 according to a preferred embodiment of the present invention. The liquid crystal display device 2 includes a backlight module 21 and a liquid crystal display module 22 . The backlight module 21 is disposed adjacent to the liquid crystal display module 22 and emits a light L ₂ to pass through the liquid crystal display module 22 . In this embodiment, the backlight module 21 is an example of a backlight module, but it is not limited thereto. It can also be a one-side backlight module. The backlight of the backlight module 21 can be selected from a Cold Cathode Fluorescent Lamp (CCFL), a Light Emitting Diode (LED), and an Organic Light-Emitting Diode (Organic Light-Emitting Diode). OLED) or Field Emissive Device (FED).

4 and FIG. 5, FIG. 4 is a block diagram of a liquid crystal display module 22 according to a preferred embodiment of the present invention, and FIG. 5 is a detailed block diagram of a liquid crystal display module 22. The liquid crystal display module 22 includes a main control board 221, a signal analysis unit 222, a drive control unit 223, and a liquid crystal display panel 224. The main control board 221 is electrically connected to the signal analysis unit 222, the signal analysis unit 222 is electrically connected to the drive control unit 223, and the drive control unit 223 is electrically connected to the signal analysis unit 222 and the liquid crystal display panel 224, respectively. The drive control unit 223 is electrically connected. The main control board 221 and the signal analysis unit 222 are electrically connected by a transmission line, for example, a power line.

In the embodiment, the main control board 221 has a signal integration unit 2211 electrically connected to the signal analysis unit 222. The signal integration unit 2211 has a modulation circuit 22111 and a second filter circuit 22112. The modulation circuit 22111 is electrically connected to the second filter circuit 22112, and the second filter The circuit 22112 is electrically connected to the signal analysis unit 222 by a transmission line. The second filter circuit 22112 can be a band pass filter circuit or a high pass filter circuit, but is not limited thereto. Any filter circuit that can achieve the filter function or a combination thereof is within the scope of the present invention. In addition, the main control board 221 further has a power supply unit 2212, which is electrically connected to the signal integration unit 2211 and the signal analysis unit 222 via the transmission line.

The signal analysis unit 222 has a first filter circuit 2221 and a demodulation circuit 2222. The first filter circuit 2221 is electrically connected to the signal integration unit 2211 in the main control board 221 via a transmission line, and the demodulation circuit 2222 is demodulated. The first filter circuit 2221 and the drive control unit 223 are electrically connected to each other. The first filter circuit 2221 may be a repulsion filter circuit or a combination of a high pass filter circuit and a low pass filter circuit, but is not limited thereto, and any filter circuit capable of achieving the filter function or a combination thereof is the embodiment. The scope.

The drive control unit 223 has a timing control circuit 2231, a scan line drive circuit 2232, and a data line drive circuit 2233. The timing control circuit 2231 is electrically connected to the demodulation circuit 2222, and the scan line driving circuit 2232 is electrically connected to the timing control circuit 2231 and the liquid crystal display panel 224, respectively, and the data line driving circuit 2233 and the timing control circuit 2231 and the liquid crystal display panel, respectively. 224 electrical connection.

The liquid crystal display panel 224 has a plurality of scanning lines 2241 and a plurality of data lines 2242. The scanning lines 2241 are electrically connected to the scanning line driving circuit 2232, and the data lines 2242 are electrically connected to the data line driving circuit 2233. In this embodiment, the liquid crystal display panel 224 can be a Twisted Nematic (TN) type liquid crystal display panel, a Multi-Domain Vertically Aligned (MVA) type liquid crystal display panel, an Optically Compensated Bend (OCB) type liquid crystal display panel, and an ASM ( Axisymmetric aligned liquid crystal display panel, an In-Plane Switching (IPS) type liquid crystal display panel, and a Fringe-Field Switching (FFS) type liquid crystal display panel.

The signal transmission and actuation relationship of each unit in the liquid crystal display module 22 will be described in detail below. Please refer to FIG. The transmission line is exemplified by a power line.

First, the modulation circuit 22111 in the signal integration unit 2211 converts the control signal C and the display signal D into a modulation signal S21; then, the second filter circuit 22112 receives the modulation signal S21. The modulation signal S21 is high-pass filtered to isolate one of the direct current (DC) signals contained in the modulation signal S21, and the filtered high frequency signal S22 is transmitted to the signal analysis unit 222 via the power line. The power supply unit 2212 provides a power signal P and is transmitted to the signal analysis unit 222 through the power line, so that the signal transmitted to the signal analysis unit 222 through the power line is one of the high frequency signals S22. Integrate signal S2.

The first filter circuit 2221 in the signal analysis unit 222 receives the integrated signal S2 transmitted by the power line, and filters the integrated signal S2 through a low-pass filter circuit and a high-pass filter circuit to obtain low-frequency power signals respectively. P and high frequency modulation signal S21, and power signal P The signals are transmitted to the drive control unit 223 and the liquid crystal display panel 224, respectively, and the modulation signal S21 is transmitted to the demodulation circuit 2222 for demodulation. The demodulation circuit 2222 receives the modulation signal S21, demodulates it into the control signal C and the display signal D, and outputs the control signal C and the display signal D to the drive control unit 223.

The timing control circuit 2231 in the driving control unit 223 receives the control signal C, the display signal D and the power signal P, and outputs a trigger signal T according to the control signal C; the scan line driving circuit 2232 and the data line driving circuit 2233 respectively receive the timing control The trigger signal T outputted by the unit 2231 outputs a scan line driving signal S23 and a data line driving signal S24 to the corresponding scan line 2241 and the data line 2242 respectively according to the trigger signal T, and transmits the display signal D to the liquid crystal display. In panel 224.

As described above, the liquid crystal display device 2 and the liquid crystal display module 22 of the present invention integrate the control signal C, the display signal D and the power signal P into an integrated signal S2, and the integrated signal can be integrated by using only one transmission line. S2 is transmitted from the main control board 221 to the liquid crystal display panel 224 to control the liquid crystal display panel 224 to operate. Compared with the prior art, the present invention reduces the transmission interface such as lines, traces and pins required for transmitting signals, and simplifies the number and volume of transmission interfaces such as lines, traces and pins, so that the liquid crystal The display device 2 and the liquid crystal display module 22 are miniaturized and designed to be simple.

Next, please refer to FIG. 6 , which is a schematic flowchart of a driving control method of a liquid crystal display module according to a preferred embodiment of the present invention. The control method thereof includes steps S10 to S13. Step S10 is performed by a signal The unit converts a control signal and a display signal into a high frequency signal, and integrates the high frequency signal and a power signal to a transmission line to transmit an integrated signal; in step S11, the integrated signal is transmitted by the transmission line; step S12 is performed by A signal analysis unit receives the integrated signal and generates a control signal, a display signal and a power signal. Step S13 receives a control signal, a display signal and a power signal from a drive control unit to drive a liquid crystal display panel to operate.

Referring to FIG. 7 again, it is a detailed flow diagram of a driving control method of a liquid crystal display module according to a preferred embodiment of the present invention.

In step S10 of FIG. 6, step S101 to step S103 are further included. Step S101: receiving a control signal and a display signal by a modulation circuit, and outputting a modulation signal; in step S102, receiving a modulation signal by a second filter circuit, and outputting a high frequency signal to the transmission line, wherein the second filtering The circuit is used to isolate one of the direct current (DC) signals contained in the modulated signal; in step S103, a voltage supply unit outputs a power signal to the transmission line, so that the signal transmitted on the transmission line carries a high frequency signal to the power signal. Integrate the signal. In addition, in the step S102, the second filter circuit may be a band pass filter circuit or a high pass filter circuit, but is not limited thereto, and any filter circuit or a combination thereof that can achieve the filter function is within the scope of the embodiment.

In step S12 of FIG. 6, step S121 to step S122 are further included. Step S121 is: receiving, by a first filter circuit, the integrated signal transmitted by the power line, and outputting a modulated signal and a power signal, wherein the first filter circuit uses a combination or a band of a high pass filter circuit and a low pass filter circuit Repel the circuit to zone the high-frequency and low-frequency parts of the integrated signal The high frequency part is a modulation signal, and the low frequency part is a power signal; in step S122, a modulation signal is received by a demodulation circuit, and a control signal and a display signal are generated to the drive control unit. In addition, the first filter circuit is not limited to the above-described aspect, and any filter circuit or a combination thereof that can achieve the filter function is within the scope of the embodiment.

In step S13 of FIG. 6, step S131 to step S133 are further included. Step S131: receiving a control signal by a timing control unit and outputting a trigger signal; step S132 is to receive a trigger signal by a scan line driving circuit and a data line driving circuit, and generate a scan line driving signal and a data line driving signal. Step S133: receiving, by the plurality of scanning lines and the plurality of data lines of the liquid crystal display panel, the corresponding scanning line driving signal and the data line driving signal, so that the liquid crystal display panel can drive the signal and the data line driving signal according to the received scanning line. And display the signal to act.

In summary, the liquid crystal display device and the liquid crystal display module of the present invention integrate the control signal, the display signal and the power signal into an integrated signal, and can transmit the integrated signal from the main control board to the single control board by using only one transmission line. In the liquid crystal display panel, to control the operation of the liquid crystal display panel. Compared with the prior art, the present invention reduces the transmission interface such as lines, traces and pins required for transmitting signals, and simplifies the number and volume of transmission interfaces such as lines, traces and pins, so that the liquid crystal The display device and the liquid crystal display module are compact in size and simple in design. In addition, the present invention also discloses a driving control method for a liquid crystal display module, so that the main control board can control the operation of the liquid crystal display panel by the transmission line to cooperate with the liquid crystal display device and the liquid crystal display module application of the present invention.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1, 2‧‧‧ liquid crystal display device

11, 22‧‧‧ LCD module

111, 224‧‧‧ LCD panel

1111, 2241‧‧ ‧ scan line

1112, 2242‧‧‧ data line

112, 223‧‧‧ drive control unit

1121, 2231‧‧‧ timing control circuit

1122, 2232‧‧‧ scan line driver circuit

1123, 2233‧‧‧ data line drive circuit

113, 221‧‧‧ main control board

1131‧‧‧Control unit

1132, 2212‧‧‧Power supply unit

12, 21‧‧‧ backlight module

2211‧‧‧Signal Integration Unit

22111‧‧‧Modulation circuit

22112‧‧‧Second filter circuit

222‧‧‧Signal analysis unit

2221‧‧‧First filter circuit

2222‧‧‧Demodulation circuit

L ₁ , L ₂ ‧‧‧Light

C‧‧‧Control signal

D‧‧‧ display signal

P‧‧‧Power signal

Steps for driving control method of S10-S13‧‧ liquid crystal display module

S2‧‧‧ integrated signal

S21‧‧‧ modulated signal

S22‧‧‧High frequency signal

S23‧‧‧ scan line drive signal

S24‧‧‧ data line drive signal

T‧‧‧ trigger signal

1 is a schematic structural view of a conventional liquid crystal display device; FIG. 2 is a block diagram of a conventional liquid crystal display module of FIG. 1; FIG. 3 is a schematic structural view of a liquid crystal display device according to a preferred embodiment of the present invention; 4 is a block diagram of a liquid crystal display module according to a preferred embodiment of the present invention; FIG. 5 is a detailed block diagram of the liquid crystal display module of FIG. 4; and FIG. 6 is a liquid crystal according to a preferred embodiment of the present invention. A schematic flowchart of a driving control method of a display module; and FIG. 7 is a detailed flow chart of a driving control method of a liquid crystal display module according to a preferred embodiment of the present invention.

22‧‧‧LCD module

221‧‧‧Main control board

222‧‧‧Signal analysis unit

223‧‧‧Drive Control Unit

224‧‧‧LCD panel

C‧‧‧Control signal

D‧‧‧ display signal

P‧‧‧Power signal

S2‧‧‧ integrated signal

T‧‧‧ trigger signal

Claims (33)

A liquid crystal display module includes: a liquid crystal display panel; a main control board generates an integrated signal; a signal analyzing unit is electrically connected to the main control board via a transmission line, and the signal analyzing unit receives the The integrated signal transmitted by the transmission line to generate a control signal, a display signal and a power signal; and a driving control unit electrically connected to the liquid crystal display panel and the signal analyzing unit, respectively, and the driving control unit is Receiving the control signal and the display signal to control the operation of the liquid crystal display panel; wherein the main control panel comprises: a signal integration unit electrically connected to the signal analysis unit, and is generated by the main control board The control signal, the display signal and the power signal are generated to generate the integrated signal. The liquid crystal display module of claim 1, wherein the driving control unit generates a scan line driving signal and a data line driving signal to the liquid crystal display panel according to the control signal and the display signal. The liquid crystal display module of claim 2, wherein the liquid crystal display panel has a plurality of scan lines and a plurality of data lines, and the scan lines receive the corresponding scan line drive signals, the data The line system receives the corresponding data line driving signal. The liquid crystal display module of claim 3, wherein the driving control unit comprises: a timing control circuit electrically connected to the signal analyzing unit, and outputting a trigger signal according to the control signal; a scan line The driving circuit is electrically connected to the timing control circuit and the scan lines respectively, and generates the scan line driving signal according to the trigger signal; and a data line driving circuit respectively corresponding to the timing control circuit and the The data line is electrically connected, and the trigger signal is generated according to the trigger signal to generate the data line driving signal. The liquid crystal display module of claim 1, wherein the signal analysis unit comprises: a first filter circuit electrically connected to the power line, and based on the integrated signal, to generate the power signal and a modulation signal; and a demodulation circuit electrically connected to the driving control unit and the first filter circuit respectively, and generating the control signal and the display signal to the driving control according to the modulation signal unit. The liquid crystal display module of claim 5, wherein the first filter circuit has a repulsion filter circuit. The liquid crystal display module of claim 5, wherein the first filter circuit has a high pass filter circuit and a low pass filter circuit. The liquid crystal display module of claim 1, wherein the signal integration unit comprises: a modulation circuit is configured to generate the modulation signal according to the control signal and the display signal; and a second filter circuit is respectively electrically connected to the signal analysis unit, the modulation circuit and a power supply unit Connecting, and according to the modulation signal, to generate a high frequency signal to the power line, so that the power line transmits the integrated signal to the signal analysis unit. The liquid crystal display module of claim 8, wherein the second filter circuit has a band pass filter circuit. The liquid crystal display module of claim 8, wherein the second filter circuit has a high pass filter circuit. The liquid crystal display module of claim 1, wherein the transmission line is a power line. A liquid crystal display device comprising: a liquid crystal display module having a liquid crystal display panel, a main control board, a driving control unit and a signal analyzing unit, wherein the main control board generates an integrated signal and The transmission line transmits the control signal to the signal analysis unit, and the signal analysis unit generates a control signal, a display signal and a power signal. The drive control unit is electrically connected to the liquid crystal display panel and the signal analysis unit respectively. And the driving control unit receives the control signal and the display signal to control the operation of the liquid crystal display panel; and a backlight module is disposed adjacent to the liquid crystal display module to provide a light to the liquid crystal display module Where the main control board contains: The signal integration unit is electrically connected to the signal analysis unit, and is based on the control signal, the display signal and the power signal generated by the main control board to generate the integrated signal. . The liquid crystal display device of claim 12, wherein the driving control unit generates a scan line driving signal and a data line driving signal to the liquid crystal display panel according to the control signal and the display signal. The liquid crystal display device of claim 13, wherein the liquid crystal display panel has a plurality of scan lines and a plurality of data lines, wherein the scan lines receive the corresponding scan line drive signals, and the data lines The corresponding data line driving signal is received. The liquid crystal display device of claim 14, wherein the driving control unit comprises: a timing control circuit electrically connected to the signal analyzing unit, and outputting a trigger signal according to the control signal; a scan line driving The circuit is electrically connected to the timing control circuit and the scan lines respectively, and generates the scan line driving signal according to the trigger signal; and a data line driving circuit respectively corresponding to the timing control circuit and the data The line is electrically connected and is based on the trigger signal to generate the data line driving signal. The liquid crystal display device of claim 12, wherein the signal analysis unit comprises: a first filter circuit electrically connected to the power line, and according to the integrated signal, to generate the power signal and a modulation signal; and a demodulation circuit, respectively, and the driving control unit and the first A filter circuit is electrically connected to the modulation signal according to the modulation signal to generate the control signal and the display signal to the drive control unit. The liquid crystal display device of claim 16, wherein the first filter circuit has a repulsion filter circuit. The liquid crystal display module of claim 16, wherein the first filter circuit has a high pass filter circuit and a low pass filter circuit. The liquid crystal display device of claim 12, wherein the signal integration unit comprises: a modulation circuit according to the control signal and the display signal to generate the modulation signal; and a second filter The circuit is electrically connected to the signal analysis unit, the modulation circuit and a power supply unit, and generates a high frequency signal to the power line according to the modulation signal, so that the power line transmits the integration Signal to the signal analysis unit. The liquid crystal display device of claim 19, wherein the second filter circuit has a band pass filter circuit. The liquid crystal display device of claim 19, wherein the second filter circuit has a high pass filter circuit. The liquid crystal display device of claim 12, wherein the transmission line is a power line. A driving control method for a liquid crystal display module, comprising the steps of: transmitting an integrated signal by a transmission line; receiving the integrated signal by a signal analyzing unit, and generating a control signal, a display signal and a power signal; The control unit receives the control signal, the display signal and the power signal to drive a liquid crystal display panel to operate; the control control unit receives the control signal and the display signal, and generates a scan line driving signal and a data line driving signal to The liquid crystal display panel. The driving control method of claim 23, further comprising the steps of: converting the control signal and the display signal into a high frequency signal by a signal integration unit, and integrating the high frequency signal and the power signal To the transmission line to transmit the integrated signal. The driving control method of claim 23, further comprising the steps of: receiving, by the plurality of scanning lines and the plurality of data lines of the liquid crystal display panel, the corresponding scanning line driving signal and the data line driving signal. The driving control method according to claim 25, further comprising the steps of: receiving, by the timing control unit of the driving control unit, the control signal, and outputting a trigger signal to a scan line driving circuit and a data line. Drive circuit; Receiving the trigger signal by the scan line driving circuit in the driving control unit, and generating the scan line driving signal; and receiving, by the data line driving circuit in the driving control unit, the trigger signal, and generating the data line driving signal . The driving control method according to claim 23, further comprising the steps of: receiving, by the first filtering circuit of the signal analyzing unit, the integrated signal, and outputting a modulated signal and the power signal to a demodulation The variable circuit is received by the demodulation circuit in the signal analysis unit, and the control signal and the display signal are generated to the drive control unit. The driving control method according to claim 27, further comprising the steps of: receiving, by the repulsion filter circuit of the first filter circuit, the integrated signal, and outputting the modulated signal and the power signal to the demodulation Variable circuit. The driving control method of claim 27, further comprising the steps of: receiving, by the low-pass filter circuit of the first filter circuit, the integrated signal, and outputting the power signal to the drive control unit; A high-pass filter circuit of the first filter circuit receives the integrated signal and outputs the modulated signal to the demodulation circuit. For example, the drive control method described in claim 23, The method includes the following steps: receiving, by the modulation circuit of the signal integration unit, the control signal and the display signal, and outputting the modulation signal; and receiving, by the second filter circuit in the signal integration unit, the modulation signal, And outputting the high frequency signal to the transmission line; and outputting the power signal to the transmission line by a voltage supply unit. The driving control method according to claim 30, further comprising the step of: receiving, by the band pass filter circuit of the second filter circuit, the modulation signal, and outputting the high frequency signal to the transmission line. The driving control method according to claim 30, further comprising the steps of: receiving, by the high-pass circuit of the second filter circuit, the modulation signal, and outputting the high-frequency signal to the transmission line. The driving control method according to claim 23, wherein the transmission line is a power line.