CN216084272U - TCON module and Tconless screen equipment - Google Patents

Abstract

The utility model discloses a TCON module and Tconless screen equipment, and relates to the field of display screens, wherein the TCON module comprises a TCON circuit, an input interface and an output interface, and the TCON circuit comprises at least one of a power management circuit, a gamma voltage generation circuit and a logic signal level conversion circuit; the TCON circuit is connected with a mainboard circuit corresponding to a Tconless screen through the input interface, and the TCON circuit is connected with a source drive plate corresponding to the Tconless screen through the output interface, so that the Tconless screen has a Tconless function. By adopting the method, the technical problem of high wiring difficulty when the circuit corresponding to the Tconless function is integrated on the mainboard when the Tconless function is realized can be solved.

Description

TCON module and Tconless screen equipment

Technical Field

The utility model relates to the field of display screens, in particular to a TCON module and Tconless screen equipment.

Background

Currently, due to the cost of production, Tconless screens are commonly used in television sets. The Tconless screen means that a screen component does not have a Tconless function, and at this time, in order to implement the Tconless function, the Tconless function needs to be integrated into a main board corresponding to the screen. The motherboard may also be understood as a System On Chip (SOC). The core of the motherboard is an SOC chip, i.e., a main chip. Tconless is a logic board, and functions to convert image control signals and voltage signals to be directly used by a Source board (i.e., a Source driving board) of a screen. Tconless is composed of four parts of a power supply management circuit, a gamma voltage generating circuit, a video signal conversion circuit and a logic signal level conversion circuit. At present, a main chip designer can integrate a video signal conversion circuit in Tconless into a main chip, and a gamma voltage generation circuit, a power management circuit and a logic signal level conversion circuit cannot be integrated into the main chip and need to be designed separately. At this time, at least one of the gamma voltage generating circuit, the power management circuit, and the logic signal level converting circuit may be installed in the Source board, and circuits included in the Source boards manufactured in different manufacturers may be different. Therefore, when using the Tconless screen, in order to implement the Tconless function, it is necessary to integrate the required circuits among the gamma voltage generating circuit, the power management circuit, and the logic signal level conversion circuit on the motherboard in combination with the currently integrated circuit of the Source board (circuit for implementing the Tconless function), however, in the process of integrating the gamma voltage generating circuit, the power management circuit, and the logic signal level conversion circuit on the motherboard, in order to ensure that the motherboard can be compatible with more Tconless screens, the motherboard needs to be adapted to various Source boards (for example, to adapt to different Source boards for implementing Tconless function circuits), when being compatible with multiple Tconless screens, the motherboard has higher wiring difficulty, needs to be redesigned and verified, causes the production cycle of the motherboard to be too long, and consumes a large amount of design resources.

Disclosure of Invention

The utility model provides a TCON module and Tconless screen equipment, which are used for solving the technical problem of high wiring difficulty when a circuit corresponding to the Tconless function is integrated on a mainboard when the Tconless function is realized.

In a first aspect, an embodiment of the present invention provides a TCON module, where the TCON module includes a TCON circuit, an input interface, and an output interface, and the TCON circuit includes at least one of a power management circuit, a gamma voltage generation circuit, and a logic signal level conversion circuit;

the TCON circuit is connected with a mainboard circuit corresponding to the Tconless screen through the input interface,

the TCON circuit is connected with a source drive plate corresponding to the Tconless screen through the output interface, so that the Tconless screen has a Tconless function.

In a second aspect, a Tconless screen device according to an embodiment of the present invention includes a motherboard circuit, a Tconless screen, and the TCON module of the first aspect,

the TCON module is respectively connected with the mainboard circuit and a source drive plate of the Tconless screen, so that the Tconless screen has a Tconless function through the mainboard circuit and the TCON module.

Above-mentioned TCON module and Tconless screen equipment is through the form of being the module with the TCON circuit design to link to each other with mainboard circuit and source drive plate respectively through corresponding interface, and the indirect design is on mainboard circuit or on solitary PCB board, need not to change the mainboard promptly, has reduced the wiring degree of difficulty, and, has reduced the use to the special wire rod that needs when changing the mainboard. The power management circuit, the gamma voltage generation circuit and the logic signal level conversion circuit can be combined at will in the TCON circuit, when a new Tconless screen is configured, only a TCON module compatible with the new Tconless screen needs to be selected according to a configured circuit on a Source board, and complex hardware design and PCB design do not need to be carried out on a mainboard of the new Tconless screen in the process, so that the design and verification time of the mainboard is reduced, the wiring complexity of the mainboard circuit is reduced, more Tconless screens are compatible, and the production efficiency is improved.

Drawings

FIG. 1: the embodiment of the utility model provides a schematic structural diagram of a TCON module.

FIG. 2: the embodiment of the utility model provides a schematic structural diagram of a TCON module.

FIG. 3: the embodiment of the utility model provides a schematic structural diagram of a TCON module.

FIG. 4: the embodiment of the utility model provides a schematic structural diagram of a TCON module.

FIG. 5: the embodiment of the utility model provides a schematic structural diagram of a TCON module.

FIG. 6: the embodiment of the utility model provides a schematic structural diagram of a TCON module.

FIG. 7: the embodiment of the utility model provides a schematic structural diagram of a TCON module.

FIG. 8: the embodiment of the utility model provides a schematic structural diagram of a TCON module.

FIG. 9: the embodiment of the utility model provides a schematic structural diagram of Tconless screen equipment.

FIG. 10: the embodiment of the utility model provides a schematic structural diagram of Tconless screen equipment.

In the figure: TCON circuit 100, input interface 101, output interface 102, motherboard circuit 103, source driver board 104, first voltage input interface 105, first voltage output interface 106, second voltage input interface 107, second voltage output interface 108, third voltage input interface 109, voltage control input interface 110, clock output interface 111, voltage control output interface 112, output interface 1061 for AVDD signal, output interface 1062 for HAVDD signal, output interface 1063 for DVDD signal, output interface 1064 for VGH signal, output interface 1065 for VGL signal, output interface 1081 for reference voltage signal, output interface 1082 for gamma voltage signal, input interface zero 1101 for start control signal, input interface 1102 for clear control signal, output interface 1121 for start control signal, output interface 1122 for clear control signal, TCON driver board module 113, Tconless screen 114, first source driver board 115, second source driver board 116, and method for controlling the output of the AVDD signal, A power management circuit 117, a gamma voltage generation circuit 118, a logic signal level conversion circuit 119, a first FFC120, a second FFC121, a first FFC socket 122, a second FFC socket 123, and an SOC module 124.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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 utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such system, article, or apparatus.

Fig. 1 is a schematic structural diagram of a TCON module according to an embodiment of the present invention. As shown in fig. 1, the TCON module includes a TCON circuit 100, an input interface 101, and an output interface 102, wherein the TCON circuit 100 includes at least one of a power management circuit, a gamma voltage generation circuit, and a logic signal level conversion circuit; the TCON circuit 100 is connected to a motherboard circuit 103 corresponding to the Tconless screen through an input interface 101, and the TCON circuit 100 is connected to a source drive board 104 corresponding to the Tconless screen through an output interface 102, so that the Tconless screen has a Tconless function.

In the embodiment, the power management circuit is a circuit for providing a necessary supply voltage for the Tconless screen, where the supply voltage is a voltage required by the device during normal operation. The gamma voltage generating circuit is a circuit for providing a voltage subdivision reference for a Tconless screen, wherein the voltage subdivision reference is used for generating other signals by taking the voltage reference as a standard, and the inaccuracy and the change of the voltage reference can directly influence the display accuracy of the whole Tconless screen. The logic signal level conversion circuit is a circuit for converting a low-voltage control signal output by the main board circuit 103 into a high-voltage control signal so as to control the switching and closing of a TFT transistor in a Tconless screen, wherein the TFT transistor is a thin film transistor, and the Tconless screen can display different contents by controlling the switching and closing of the TFT transistor, so that the logic signal level conversion circuit is substantially a circuit for controlling imaging contents of the Tconless screen. In one embodiment, the logic signal level conversion circuit also generates a CLK signal (i.e., a clock signal) for the line scan driving.

The TCON circuit 100 includes at least one of a power management circuit, a gamma voltage generation circuit, and a logic signal level conversion circuit, and at this time, the TCON circuit 100 may be any combination of the power management circuit, the gamma voltage generation circuit, and the logic signal level conversion circuit, and thus, the combination of the TCON circuit 100 includes seven kinds, including a single power management circuit, a single gamma voltage generation circuit, a single logic signal level conversion circuit, a power management circuit and a gamma voltage generation circuit, a power management circuit and a logic signal level conversion circuit, a gamma voltage generation circuit and a logic signal level conversion circuit, and a power management circuit and a gamma voltage generation circuit and a logic signal level conversion circuit. The seven combination modes can be integrated in the TCON module to select one of the combination modes to be connected according to actual requirements. In an embodiment, a specific combination manner of the TCON circuit 100 may be selected according to an actual requirement of a Tconless screen, and only the Tconless function needs to be ensured to be implemented, for example, a Source driver board 104 (i.e., Source board) corresponding to the Tconless screen is provided with a power management circuit and a video signal conversion circuit, then the required TCON circuit 100 should include a gamma voltage generation circuit and a logic signal level conversion circuit, and further, for example, if the Source driver board 104 corresponding to the Tconless screen is provided with the video signal conversion circuit, then the TCON circuit 100 should include a power management circuit, a gamma voltage generation circuit, and a logic signal level conversion circuit. It is understood that the TCON circuit 100 can be directly applied after being designed, and the internal components or connection relationships thereof do not need to be changed during the application process.

Illustratively, the TCON circuit 100 is connected to the motherboard circuit 103 corresponding to the Tconless screen through the input interface 101, that is, the motherboard circuit 103 establishes a data transmission channel with the TCON circuit 100 through the input interface 101, so that data transmission between the motherboard circuit 103 and the TCON circuit 100 is completed. The input interface 101 is an interface for receiving data sent by an external device, and in an embodiment, specifically, receives data sent by the motherboard circuit 103 corresponding to the Tconless screen, so as to control the Tconless screen through the data sent by the motherboard circuit 103. It is understood that the specific type of the input interface 101 may be determined by combining the type of data transmitted by the input interface, and the specific type of the input interface 101 is not limited in this embodiment. Furthermore, the motherboard 103 is one of the most basic and most important components of a Tconless screen device, where the screen component is a Tconless screen device, and a main circuit system is installed on the motherboard 103, for example, a processor, a memory, a storage, an external interface, and other circuits are integrated on the motherboard 103, and in an embodiment, the motherboard 103 may implement a Tconless function by controlling a TCON circuit. In practical applications, the main board circuit 103 may have other functions. In one embodiment, the input interface 101 and the motherboard circuit 103 are connected by a wire. Illustratively, the main board circuit 103 has a data interface of the same type as the input interface 101 of the TCON circuit 100, and the data interface of the main board circuit 103 is connected to the input interface 101 of the TCON circuit 100 by a wire to realize data transmission.

Illustratively, TCON circuit 100 is coupled to a source driver board 104 corresponding to a Tconless screen via an output interface 102. In one embodiment, Tconless screen is a liquid crystal screen, and at this time, liquid crystal molecules of the liquid crystal screen can be controlled by source drive board 104, so that control of display of Tconless screen is realized. It is understood that the specific type of the output interface 102 can be determined by the type of data it transmits, and the specific type of the output interface 102 is not limited in this embodiment. Further, the source driver board 104 refers to a driving control circuit for driving a screen to image, and the source driver board 104 is generally integrated with a processor, a video channel, an input/output port, a power amplifier, a capacitor circuit, and other components. In the embodiment, the source driver board 104 is integrated in a Tconless screen, in practical applications, the source driver board 104 may be independent from the screen of the Tconless screen, and the source driver board 104 may be installed with circuits related to the TCON function. It can be understood that the source driving board 104 corresponding to the Tconless screen is connected to the output interface 102 on the TCON circuit 100 by wire, and the source driving board 104 is provided with a data interface of the same type as the output interface 102 on the TCON circuit 100, and the specific connection process may refer to the connection process between the TCON circuit 100 and the motherboard circuit 103, which is not described herein. In an embodiment, the components on the motherboard circuit 103 and the components on the source drive board 104 are not specifically limited, and when the TCON module is connected with the motherboard circuit and the source drive board, the Tconless screen has a Tconless function by mainly completing the routing of the interface.

In an embodiment, the working mechanism of the TCON module is described by taking an example that the TCON circuit 100 in the TCON module includes a power management circuit, a gamma voltage generation circuit, and a logic signal level conversion circuit, at this time, a data interface of the motherboard circuit 103 corresponding to the Tconless screen is connected to the input interface 101 of the TCON circuit 100 by wire, and a data interface of the source driver board 104 corresponding to the Tconless screen is connected to the output interface 102 of the TCON circuit 100 by wire. The main board circuit 103 supplies power to a power management circuit, a gamma voltage generation circuit and a logic signal level conversion circuit in the TCON circuit, the power management circuit in the TCON circuit supplies necessary power supply voltage to the Tconless screen, the gamma voltage generation circuit supplies voltage subdivision reference to the Tconless screen, and the logic signal level conversion circuit controls imaging content of the Tconless screen by outputting a plurality of clock signals and image scanning conversion signals to the source drive board 104, and the Tconless screen has a Tconless function by connecting the main board circuit 103 of the TCON module and the Tconless screen with the source drive board 104.

Above-mentioned, through the form of being the module with the TCON circuit design to link to each other with mainboard circuit and source drive plate respectively through corresponding interface, but not direct design on mainboard circuit or on the PCB board alone, need not to change the mainboard promptly, reduced the wiring degree of difficulty, and, reduced the use to the special wire rod that needs when changing the mainboard. Can make up wantonly power management circuit, gamma voltage produces circuit and logic signal level conversion circuit in the TCON circuit, when configuration new Tconless screen, only need to select the TCON module compatible with new Tconless screen according to the circuit that has configured on the source drive plate 104, and accomplish the line of walking of interface can, need not carry out complicated hardware design and PCB design to the mainboard of new Tconless screen at this in-process, promptly need not to carry out the overall arrangement and the wiring of TCON circuit on the mainboard, the design and the verification time of mainboard have been reduced, the wiring complexity of mainboard circuit has been alleviateed, and production efficiency is improved.

In one embodiment, the power management circuit comprises a PMU chip, the GAMMA voltage generation circuit comprises a GAMMA chip, and the logic signal level conversion circuit comprises a Levelshift chip.

It should be further noted that a chip, i.e., an integrated circuit, is a way to miniaturize a circuit in electronics, and is generally manufactured on a surface of a semiconductor wafer. Illustratively, a PMU chip is a highly integrated power management solution for portable applications, i.e., several types of traditionally discrete power management devices are integrated within a single package, thereby achieving higher power conversion efficiency and lower power consumption, as well as fewer components to accommodate the reduced board-level space. The specific model of the PMU chip used in the power management circuit can be selected according to actual conditions. It can be understood that the power management circuit may further include, in addition to the PMU chip, components such as a peripheral power inductor to process signals input to the PMU chip and/or signals output by the PMU chip, so that the power management circuit supplies power more accurately, where the embodiment of the type, number, and connection relationship of the components included in the power management circuit is not limited. Illustratively, the GAMMA chip can provide a voltage subdivision reference for the Tconless screen, and the specific model of the GAMMA chip in the GAMMA voltage generation circuit can be selected according to actual conditions. Illustratively, the Levelshift chip has a function of controlling imaging content of the Tconless screen. The specific type of the Levelshift chip in the logic signal level conversion circuit can be selected according to actual conditions.

In the above, the circuit function is realized by adopting a corresponding chip in the circuit, so that the structural complexity of the TCON circuit can be simplified.

On the basis of the foregoing embodiments, fig. 2 is a schematic structural diagram of a TCON module according to an embodiment of the present invention. As shown in fig. 2, TCON circuit 100 includes a power management circuit, input interface 101 includes a first voltage input interface 105 for receiving a first voltage signal generated by motherboard circuitry 103 and used to provide power to the power management circuit, and output interface 102 includes a first voltage output interface 106 for outputting a second voltage signal generated by the power management circuit and used to provide a supply voltage for the Tconless panel.

In one embodiment, when the TCON circuit includes a power management circuit, the input interface includes a first voltage input interface, the output interface includes a first voltage output interface, the first voltage input interface is to receive a first voltage signal, and the first voltage output interface is to output a second voltage signal. Illustratively, after the first voltage input interface 105 is connected with the motherboard circuit 103 corresponding to the Tconless screen and the first voltage output interface 106 is connected with the source drive board 104 corresponding to the Tconless screen, the TCON module can normally operate, so that the power management circuit provides a power supply voltage for the Tconless screen. In the working process of the TCON module, the main board circuit 103 generates a voltage signal for providing power to the power management circuit, and in the embodiment, the voltage signal is recorded as a first voltage signal, and then the main board circuit sends the first voltage signal to the power management circuit through the first voltage input interface 105, so that the power management circuit can work normally. At this time, the first voltage signal may be understood as an input power of the power management module. In one embodiment, the first voltage signal is denoted as VCC _ PANEL, i.e., the first voltage signal is the supply voltage of the PANEL (i.e., the power management circuit). Then, the power management circuit generates a voltage signal for providing a power supply voltage for the Tconless screen, in the embodiment, the voltage signal is recorded as a second voltage signal, and then, the motherboard circuit sends the second voltage signal to the source drive board 104 through the first voltage output interface 106, so that the source drive board 104 drives the Tconless screen to normally operate. In one embodiment, the type of second voltage signal may be determined based on the type of power required by the Tconless screen. In one embodiment, the second voltage signal comprises: the display device comprises an AVDD signal, an HAVDD signal, a DVDD signal, a VGH signal and a VGL signal, wherein the AVDD signal refers to an analog voltage signal, the HAVDD signal refers to a high-voltage analog voltage signal, the DVDD signal refers to a digital voltage signal, and the VGH signal and the VGL signal respectively refer to a high-voltage control signal and a low-voltage control signal for controlling the on-off of a TFT transistor on a Tconless screen. Further, each type of signal corresponds to a first voltage output interface, and at this time, the first voltage output interface 106 has 5 interfaces in total and is respectively used for outputting an AVDD signal, an HAVDD signal, a DVDD signal, a VGH signal, and a VGL signal. It is understood that the type of the second voltage signal described above is only an exemplary description, and is not a limitation on the type of the second voltage signal.

When the Source board is integrated with the gamma voltage generating circuit and the logic signal level converting circuit, the TCON module can be combined in the following way: the power management circuit is used as a TCON circuit and is respectively connected with the mainboard circuit and the source drive board to realize the Tconless function, the mainboard circuit is not required to be laid out and wired in the connection process, and the design and verification time of the mainboard is reduced.

On the basis of the foregoing embodiments, fig. 3 is a schematic structural diagram of a TCON module according to an embodiment of the present invention. As shown in fig. 3, the TCON circuit 100 includes a gamma voltage generating circuit; the input interface 101 comprises a second voltage input interface 107 for receiving a third voltage signal generated by the main board circuit 103 and used for supplying power to the gamma voltage generating circuit; output interface 102 includes a second voltage output interface 108 for outputting a fourth voltage signal generated by gamma voltage generation circuitry and used to provide a voltage subdivision reference for the tcontless screen.

In one embodiment, when the TCON circuit includes a gamma voltage generating circuit, the input interface includes a second voltage input interface, the output interface includes a second voltage output interface, the second voltage input interface is for receiving a third voltage signal, and the second voltage output interface is for outputting a fourth voltage signal. Illustratively, after the second voltage input interface 107 is connected to the motherboard circuit 103 corresponding to the Tconless screen and the second voltage output interface 108 is connected to the source driver board 104 corresponding to the Tconless screen, the TCON module can operate normally, so that the gamma voltage generating circuit provides a voltage subdivision reference for the Tconless screen, and it can be understood that the connection mode is a wired connection, and in this embodiment, the specific wired connection mode is not limited. In the operation of the TCON module, the main board circuit 103 generates a voltage signal for providing power to the gamma voltage generating circuit, and in the embodiment, the voltage signal is referred to as a third voltage signal. Thereafter, the main board circuit 103 transmits the third voltage signal to the gamma voltage generating circuit through the second voltage input interface 107 so that the gamma voltage generating circuit can operate normally. Then, the gamma voltage generating circuit provides a voltage signal of a voltage subdivision reference for the Tconless screen, in an embodiment, the voltage signal is recorded as a fourth voltage signal, and then the gamma voltage generating circuit sends the fourth voltage signal to the source driving board 104 through the second voltage output interface 108, so that the Tconless screen can measure other signals by taking the voltage subdivision reference as a standard. In one embodiment, the type of the third voltage signal may be determined based on the type of power source required by the gamma voltage generating circuit, and the type of the fourth voltage signal may be determined based on a voltage subdivision reference required by the Tconless screen. In one embodiment, the third voltage signal includes: and the AVDD signal and the DVDD signal, in this case, each type of signal corresponds to one second voltage input interface 107, that is, the second voltage input interface has 2 interfaces in total and is used for receiving the AVDD signal and the DVDD signal, respectively. The fourth voltage signal includes a reference voltage signal and a plurality of gamma voltage signals, and in the embodiment, the reference voltage signal is denoted as a VCOM signal, which is a signal including a reference voltage. Further, the gamma voltage signal refers to a signal containing a gamma voltage, and a voltage subdivision reference for providing the video signal can be realized through the gamma voltage and the reference voltage, that is, gamma correction is realized. In one embodiment, the fourth voltage signals are set to include 18 gamma voltage signals, which are denoted as GAM1-GAM 18. At this time, each kind of signal corresponds to one second voltage output interface 108, that is, the second voltage output signal has 19 interfaces, 18 interfaces are used for outputting the GAM signal, and 1 interface is used for outputting the VCOM signal.

It is understood that the types of the third voltage signal and the fourth voltage signal are only exemplary descriptions, and are not limited to the types of the third voltage signal and the fourth voltage signal.

In the foregoing, when the Source board is integrated with the power management circuit and the logic signal level conversion circuit, the TCON module can be combined in the following manner: the gamma voltage generating circuit is used as a TCON circuit and is respectively connected with the mainboard circuit and the source drive board so as to realize the Tconless function, and the mainboard circuit is not required to be laid out and wired in the connection process, so that the design and verification time of the mainboard is reduced.

It should be noted that, in an embodiment, the output interface 102 of the gamma voltage generation circuit may further include a chamfering control signal output interface for generating a chamfering control signal, where the chamfering control signal is used to perform chamfering on the gate-on voltage output to the TFT transistor of the tcontless screen, so as to reduce a voltage difference between the gate-on voltage and the gate-off voltage when the TFT transistor of the tcontless screen is turned off, and reduce an influence on the data signal voltage. When the TCON circuit comprises a power management circuit, an output interface of the chamfering control signal is arranged on the power management circuit, an input interface of the chamfering control signal is arranged on the gamma voltage generating circuit, so that the chamfering control signal generated by the power management circuit is transmitted to the gamma voltage generating circuit. When the power management circuit is integrated on the main board circuit, the input signal of the TCON module further includes an input interface of the chamfering control signal, so as to send the chamfering control signal generated by the power management circuit on the main board circuit to the gamma voltage generating circuit.

On the basis of the foregoing embodiments, fig. 4 is a schematic structural diagram of a TCON module according to an embodiment of the present invention. As shown in fig. 4, the TCON module includes a logic signal level conversion circuit; the input interface 101 includes a third voltage input interface 109 for receiving a fifth voltage signal generated by the main board circuit 103 and used for supplying power to the logic signal level conversion circuit, and a voltage control input interface 110 for receiving an image scanning control signal; the output interface 102 includes a clock output interface 111 for outputting a plurality of clock signals, each of which corresponds to one of the clock output interfaces 111, and a voltage control output interface 112 for outputting an image scan conversion signal obtained by the image scan control signal, the clock signal and the image scan conversion signal being used to control imaging content of the tcontless screen.

In one embodiment, when the TCON circuit includes a logic signal level shifting circuit, the input interface includes a third voltage input interface and a voltage control input interface, and the output interface includes a clock output interface and a voltage control output interface. After the third voltage input interface and the voltage control input interface are connected with the main board circuit 103 corresponding to the Tconless screen and the clock output interface 111 and the voltage control output interface 112 are connected with the source drive board 104 corresponding to the Tconless screen, the TCON module can normally operate, so that the logic signal level conversion circuit can control the imaging content of the Tconless screen, and it can be understood that the connection mode is a wired connection mode, and the specific wired connection mode is not limited in this embodiment. In the working process of the TCON module, the main board circuit 103 generates a voltage signal for providing power for the logic signal level conversion circuit, and in the embodiment, the voltage signal is recorded as a fifth voltage signal, and then the fifth voltage signal is sent to the logic signal level conversion circuit through the third voltage input interface, so that the logic signal level conversion circuit can work normally. And, the main board circuit 103 generates an image scanning control signal for deciding the contents of imaging, and sends the image scanning control signal to the logic signal level conversion circuit through the voltage control input interface 110. Then, the logic signal level conversion circuit converts the received image scanning control signal and generates an image scanning conversion signal. The image scanning control signal is a signal for determining imaging content, and can control the logic level conversion circuit to generate an image scanning conversion signal for controlling the TFT transistor to be sequentially opened and closed, so that the TFT transistor is regularly opened and closed line by line through the image scanning conversion signal, and the imaging content is controlled. The image scan conversion signal is a signal which can be applied to the TFT transistor after processing the image scan control signal, that is, a signal for changing the voltage switching state of the TFT transistor. Meanwhile, the logic signal level converting circuit also generates a clock signal, wherein the clock signal is generated by a clock generator, and the clock signal is usually used in a synchronous circuit to play the role of a timer to ensure that the related electronic components are operated synchronously. The clock signal has only two levels, one low and the other high. Then, the logic signal level conversion circuit sends the clock signal to the source drive board 104 through the clock output interface 111, and sends the image scan conversion signal to the source drive board 104 through the voltage control output interface 112, so that the source drive board 104 controls the imaging content of the tcontless screen according to the clock signal and the image scan conversion signal.

In one embodiment, the fifth voltage signal includes: VGH signal and VGL signal. It can be understood that, in the liquid crystal display screen, the TFT transistor can control liquid crystal molecules, wherein the turn-on voltage signal of the TFT transistor is a VGH signal and the turn-off voltage signal of the TFT transistor is a VGL signal, and therefore, in the embodiment, the VGH signal and the VGL signal are used to supply power to the logic signal level conversion circuit, so that the logic signal level conversion circuit controls the turn-off and the turn-on of the TFT transistor according to the VGH signal and the VGL signal, and further controls the on and off of the Tconless screen imaging. At this time, the third voltage input interface 109 has 2 interfaces in total and is respectively used for receiving the VGH signal and the VGL signal. Further, the image scanning control signal includes: the TFT driving circuit includes a start control signal and a clear control signal, wherein the start control signal is denoted as an STV _ IN signal and the clear control signal is denoted as a CLR _ IN signal, and the STV signal is a gate start signal applied to a gate of the TFT transistor. The STV _ IN signal refers to an STV signal input to the logic signal level conversion circuit, i.e., a start control signal. The CLR is a clear signal, and the CLR _ IN signal is a CLR signal input to the logic signal level conversion circuit, that is, a clear control signal. At this time, the voltage control input interface 110 has 2 interfaces IN total, and is respectively used for receiving the STV _ IN signal and the CLR _ IN signal. The image scanning conversion signal comprises an initial conversion signal obtained by converting the initial control signal and a zero clearing conversion signal obtained by converting the zero clearing control signal, wherein the initial conversion signal is recorded as an STV _ OUT signal which is an STV signal input to the source drive plate, and the zero clearing conversion signal is recorded as a CLR _ OUT signal which is a CLR signal input to the source drive plate. The embodiment of the conversion rule of the logic signal level conversion circuit is not limited, and at this time, the voltage control output interface 112 has 2 interfaces in total and is respectively used for outputting the STV _ OUT signal and the CLR _ OUT signal. Further, the clock signal is multiple, and in one embodiment, the clock signal is denoted as CLK, and there are 8 clock signals, denoted as CLK1-CLK8, respectively, and at this time, the clock output interface 111 has 8 interfaces for outputting CLK1-CLK8, respectively.

It is understood that the types of the fifth voltage signal, the image scan control signal, the clock signal, and the image scan conversion signal described above are merely exemplary descriptions, and are not limitations on the types of the fifth voltage signal, the image scan control signal, the clock signal, and the image scan conversion signal.

When the Source board is integrated with the power management circuit and the gamma voltage generation circuit, the TCON module can be combined in the following way: the logic signal level conversion circuit is used as a TCON circuit and is respectively connected with the mainboard circuit and the source drive board so as to realize the Tconless function, and the mainboard circuit is not required to be laid out and wired in the connection process, so that the design and verification time of the mainboard is reduced.

Based on the above embodiments, as shown in fig. 5, the TCON circuit 100 includes a gamma voltage generating circuit and a logic signal level converting circuit, the input interface 101 of the TCON circuit 100 includes a second voltage input interface 107, a third voltage input interface 109 and a voltage control input interface 110, and the output interface 102 includes a second voltage output interface 108, a clock output interface 111 and a voltage control output interface 112. Namely, the second voltage input interface includes: the third voltage input interface comprises an input interface for receiving a VGH signal and an input interface for transmitting a VGL signal, and the voltage control input interface comprises an input interface for receiving STV _ IN and an input interface for receiving CLR _ IN. The second voltage output interface includes: the voltage control output interface comprises an output interface for outputting STV _ OUT and an output interface for outputting CLR _ OUT. The functions of each input interface 101 and each output interface 102 and the functions of the input and output signals thereof are the same as those of the above embodiments, and reference may be made to the functions of each output interface and each input interface of the gamma voltage generating circuit and the logic signal level converting circuit and the functions of the input and output signals thereof in the above embodiments, which will not be described herein.

In the foregoing, when the Source board is integrated with the power management circuit, the TCON module can be combined in the following manner: the gamma voltage generating circuit and the logic signal level conversion circuit are used as TCON circuits and are respectively connected with the mainboard circuit and the source drive board so as to realize the Tconless function, and the mainboard circuit is not required to be laid out and wired in the connection process, so that the design and verification time of the mainboard is reduced.

Based on the foregoing embodiments, fig. 6 is a schematic structural diagram of a TCON module according to an embodiment of the present invention. As shown in fig. 6, it is based on fig. 2 that the TCON circuit 100 includes a power management circuit and a gamma voltage generation circuit, and accordingly, the power management circuit further includes a first sub-output interface, and the gamma voltage generation circuit further includes a first sub-input interface, where the first sub-output interface is used to transmit a second voltage signal to the gamma voltage generation circuit through the first sub-input interface, and the second voltage signal is also used to provide power for the gamma voltage generation circuit; the output interface also includes a second voltage output interface 108 for outputting a fourth voltage signal generated by the gamma voltage generation circuit and used to provide a voltage subdivision reference for the tcontless screen.

In one embodiment, when the TCON circuit 100 includes a power management circuit and a gamma voltage generation circuit, the power management circuit can also provide power for the gamma voltage generation circuit, and the gamma voltage generation circuit does not need to receive a power supply signal of the main board circuit. At this time, the input interface of the TCON circuit 100 includes the first voltage input interface 105, and the output interface of the TCON circuit 100 includes: a first voltage output interface 106 and a second voltage output interface 108. The first voltage input interface 105 receives a first voltage signal, i.e., receives the VCC _ PANEL signal. Further, the second voltage signal includes: an AVDD signal, an HAVDD signal, a DVDD signal, a VGH signal, and a VGL signal; the first voltage output interface includes: an output interface of AVDD signal, an output interface of HAVDD signal, an output interface of DVDD signal, an output interface of VGH signal and an output interface of VGL signal. Further, the fourth voltage signal includes: a reference voltage signal and a plurality of gamma voltage signals; the second voltage output interface includes: the output interface of the reference voltage signal and the output interface of a plurality of gamma voltage signals, and each gamma voltage signal corresponds to an output interface.

Further, the power management circuit further comprises a first sub-output interface, and the gamma voltage generation circuit comprises a first sub-input interface. The first sub-output interface is connected with the first sub-input interface, and at this time, the first sub-output interface can also send the second voltage signal generated by the power management circuit to the first sub-input interface, so that the gamma voltage generation circuit receives the second voltage signal, and further the power supply for the gamma voltage generation circuit is realized. In one embodiment, since the AVDD signal and the DVDD signal are required to be used as the power supply signals when the gamma voltage generating circuit is operating normally, in an embodiment, the first sub-output interface includes: an output interface for transmitting an AVDD signal and an output interface for transmitting a DVDD signal; the first sub-input interface includes: an input interface for receiving an AVDD signal and an input interface for receiving a DVDD signal. It is understood that the first sub-input interface and the first sub-output interface may be understood as internal interfaces of the TCON circuit, which interfaces are not shown in fig. 6. It can be understood that, when the TCON circuit is manufactured, the interface for outputting the DVDD signal and the interface for outputting the AVDD signal in the power management circuit are multiplexed, that is, the interface for outputting the DVDD signal and the interface for outputting the AVDD signal serve as the first voltage output interface 106 and serve as the first sub output interface to be connected to the first sub input interface.

Illustratively, when the TCON module needs to be used, the TCON module can work normally after the first voltage input interface 105 is connected to the motherboard circuit 103 corresponding to the Tconless screen, and the first voltage output interface 106 and the second voltage output interface 108 are connected to the source driver board 104 corresponding to the Tconless screen. In the working process of the TCON module, the main board circuit 103 generates a first voltage signal for providing power to the power management circuit, and sends the first voltage signal to the power management circuit through the first voltage input interface 105, so that the power management circuit can work normally. Then, the power management circuit generates a second voltage signal for providing power for the gamma voltage generation circuit and providing power supply voltage for the source drive board 104, and sends the second voltage signal to the gamma voltage generation circuit and the source drive board 104 through the first sub-output interface and the first voltage output interface 106, respectively, and then the gamma voltage generation circuit generates a fourth voltage signal for providing a voltage subdivision reference for the tcontless screen, and sends the fourth voltage signal to the source drive board 104 through the second voltage output interface 108. And then the source drive board 104 can start and operate normally after receiving the second voltage signal, and when the source drive board receives the fourth voltage signal, the fourth voltage signal is sent to the Tconless screen, so that the Tconless screen can measure other signals by taking the voltage reference as a standard. It is understood that the functions of the signals can refer to the related descriptions of the above embodiments, and are not described herein.

When the Source board is integrated with the logic signal level conversion circuit, the TCON module can be combined in the following ways: the power management circuit and the gamma voltage generation circuit are used as TCON circuits and are respectively connected with the mainboard circuit and the source drive board so as to realize the Tconless function, and the mainboard circuit is not required to be laid out and wired in the connection process, so that the design and verification time of the mainboard is reduced.

Based on the foregoing embodiments, fig. 7 is a schematic structural diagram of a TCON module according to an embodiment of the present invention. As shown in fig. 7, it is set that, on the basis of fig. 2, the TCON circuit 100 includes a power management circuit and a logic signal level conversion circuit, and accordingly, the power management circuit includes a second sub-output interface, and the logic signal level conversion circuit includes a second sub-input interface; the second sub-output interface is used for sending a second voltage signal to the logic signal level conversion circuit through the second sub-input interface, and the second voltage signal is also used for providing a power supply for the logic signal level conversion circuit; the input interface further includes a voltage control input interface 110 for receiving an image scanning control signal; the output interface further comprises a clock output interface 111 for outputting a plurality of clock signals and a voltage control output interface 112 for outputting image scan conversion signals, each clock signal corresponds to one clock output interface 111, the image scan conversion signals are obtained through image scan control signals, and the clock signals and the image scan control signals are used for controlling imaging contents of the Tcontless screen.

In one embodiment, when the TCON circuit 100 includes a power management circuit and a logic signal level shift circuit, the power management circuit in the TCON circuit 100 includes a first voltage input interface 105, a first voltage output interface 106, and a second sub-output interface, and the logic signal level shift circuit includes a second sub-input interface, a voltage control input interface 110, a clock output interface 111, and a voltage control output interface 112. The first voltage input interface 105 receives a first voltage signal, i.e., receives the VCC _ PANEL signal. The second voltage signal includes: an AVDD signal, an HAVDD signal, a DVDD signal, a VGH signal, and a VGL signal; the first voltage output interface includes: an output interface of AVDD signal, an output interface of HAVDD signal, an output interface of DVDD signal, an output interface of VGH signal and an output interface of VGL signal. The image scanning control signal includes: a start control signal (i.e., the STV _ IN signal) and a clear control signal (i.e., the CLR _ IN signal); the voltage control input interface includes: the input interface is used for receiving a starting control signal and the input interface is used for receiving a zero clearing control signal; the image scan conversion signal includes: a start switching signal (namely STV _ OUT signal) obtained by switching the start control signal and a zero-clearing switching signal (namely CLR _ OUT signal) obtained by switching the zero-clearing control signal; the voltage control output interface includes: and the output interface is used for outputting the initial conversion signal and the output interface for clearing the conversion signal. Furthermore, the output interface further comprises a clock output interface for outputting a plurality of clock signals, and each clock signal corresponds to one clock output interface.

Furthermore, the power management circuit further comprises a second sub-output interface, and the logic signal level conversion circuit comprises a second sub-input interface. The second sub-output interface is connected with the second sub-input interface, and at this time, the second sub-output interface of the power management circuit can also send a second voltage signal to the second sub-input interface, so that the logic signal level conversion circuit receives the second voltage signal, and power is provided for the logic signal level conversion circuit. In one embodiment, since the logic signal level shift circuit needs to use the VGL signal and the VGH signal as the power supply signals when operating normally, in an embodiment, the second sub-output interface includes: the output interface is used for sending a VGH signal and the output interface is used for sending a VGL signal; the second sub-input interface includes: an input interface for receiving a VGH signal and an input interface for receiving a VGL signal. It is understood that the second sub-input interface and the second sub-output interface may be understood as internal interfaces of the TCON circuit, which interfaces are not shown in fig. 7. It can be understood that, when the TCON circuit is manufactured, the interface for outputting the VGL signal and the VGH signal in the power management circuit is multiplexed, that is, the interface for outputting the VGL signal and the VGH signal is used as the first voltage output interface 106, and is used as the second sub-output interface to be connected with the second sub-input interface.

Illustratively, when the TCON module needs to be used, the TCON module can work normally after the first voltage input interface 105 and the voltage control input interface 110 are connected to the motherboard circuit 103 corresponding to the Tconless screen, and the first voltage output interface 106, the clock output interface 111 and the voltage control output interface 112 are connected to the source driver board 104 corresponding to the Tconless screen. In the working process of the TCON module, the main board circuit 103 generates a first voltage signal for providing power to the power management circuit and generates an image scanning control signal for controlling imaging content, the first voltage signal is sent to the power management circuit through the first voltage input interface 105, so that the power management circuit can work normally, and the image scanning control signal is sent to the logic level conversion circuit through the voltage control input interface 110. Then, the power management circuit generates a second voltage signal for providing power for the logic signal level conversion circuit and providing power supply voltage for the source driver board 104, and sends the second voltage signal to the logic signal level conversion circuit and the source driver board 104 through the second sub-input interface and the first voltage output interface 106, and then the logic signal level conversion circuit converts the image scanning control signal, generates an image scanning conversion signal and generates clock signals, wherein each clock signal corresponds to one clock signal output interface, sends the image scanning conversion signal to the source driver board 104 through the voltage control output interface 112, and sends the clock signals to the source driver board 104 through the clock output interface 111. The source drive board 104 can be started and normally operate after receiving the second voltage signal, and when the source drive board receives the clock signal and the image scan conversion signal, the TFT transistor is controlled, so as to control the imaging content of the Tconless screen.

It is understood that the functions of the signals can refer to the related descriptions of the above embodiments, and are not described herein.

When the Source board is integrated with the gamma voltage generating circuit, the TCON module can be combined in the following way: the power management circuit and the logic signal level conversion circuit are used as TCON circuits and are respectively connected with the mainboard circuit and the source drive board so as to realize the Tconless function, and the mainboard circuit is not required to be laid out and wired in the connection process, so that the design and verification time of the mainboard is reduced.

For example, fig. 8 is a schematic structural diagram of a TCON module according to an embodiment of the present invention. As shown in fig. 8, the TCON circuit includes a logic signal level conversion circuit in addition to the power management circuit and the gamma voltage generation circuit, and at this time, referring to fig. 8, on the basis of fig. 6, the power management circuit further includes a second sub-output interface, and the logic signal level conversion circuit further includes a second sub-input interface; the second sub-output interface is used for sending a second voltage signal to the logic signal level conversion circuit through the second sub-input interface, and the second voltage signal is also used for providing a power supply for the logic signal level conversion circuit; the input interface 101 further includes a voltage control input interface 110 for receiving an image scanning control signal; the output interface 102 further includes a clock output interface 111 for outputting a plurality of clock signals, each of which corresponds to one of the clock output interfaces 111, and a voltage control output interface 112 for outputting an image scan conversion signal obtained by an image scan control signal, the clock signal and the image scan control signal being used to control imaging content of the tcontless screen.

In one embodiment, the power management circuit in the TCON circuit 100 includes a first voltage input interface 105, a first voltage output interface 106, a first sub-output interface, and a second sub-output interface, the gamma voltage generation circuit includes a first sub-input interface and a second voltage output interface 108, and the logic signal level conversion circuit includes a second sub-input interface, a voltage control input interface 110, a clock output interface 111, and a voltage control output interface 112. The first voltage input interface 105 receives a first voltage signal, i.e., receives the VCC _ PANEL signal. The second voltage signal output by the first voltage output interface 106 includes an AVDD signal, an HAVDD signal, a DVDD signal, a VGH signal, and a VGL signal, and the first voltage output interface 106 includes an interface for outputting the AVDD signal, an interface for the HAVDD signal, an interface for the DVDD signal, an interface for the VGH signal, and an interface for the VGL signal. The first sub-output interface may further send the second voltage signal (specifically, AVDD signal and DVDD signal) generated by the power management circuit to the first sub-input interface, so that the gamma voltage generation circuit receives the second voltage signal. The second sub-output interface may further send a second voltage signal (specifically, an interface of a VGH signal and a VGL signal) to the second sub-input interface, so that the logic signal level conversion circuit receives the first voltage signal, and further, the logic signal level conversion circuit is powered. The fourth voltage signal output by the second voltage output interface 108 includes: the reference voltage signal and the plurality of gamma voltage signals, in one embodiment, there are 18 gamma voltage signals, and in this case, the second voltage output interface 108 has 19 interfaces and is respectively used for outputting the reference voltage signal and the 18 gamma voltage signals. The image scan control signal inputted by the voltage control input interface 110 includes a start control signal (i.e., STV _ IN signal) and a clear control signal (i.e., CLR _ IN signal), and at this time, the voltage control input interface 110 has 2 interfaces IN total and is respectively used for receiving the STV _ IN signal and the CLR _ IN signal. The signals output by the voltage control output interface 112 include an initial conversion signal (i.e., STV _ OUT signal) obtained by converting the initial control signal and a clear conversion signal (i.e., CLR _ OUT signal) obtained by converting the clear control signal, and at this time, the voltage control output interface 112 has 2 interfaces in total and is respectively used for outputting the STV _ OUT signal and the CLR _ OUT signal. In one embodiment, the clock output interface 111 outputs eight clock signals, and each clock signal corresponds to one clock output interface, and at this time, the clock output interface 111 has eight interfaces in total.

It can be understood that the working modes of the circuits can refer to the content of the above embodiments, which are not described in detail in the embodiments.

When the Source board is not integrated with the gamma voltage generating circuit, the power management circuit and the logic signal level conversion circuit, the TCON module can be combined in the following modes: the power management circuit, the gamma voltage generation circuit and the logic signal level conversion circuit are used as TCON circuits and are respectively connected with the mainboard circuit and the source drive board so as to realize the Tconless function, the mainboard circuit is not required to be laid out and wired in the connection process, and the design and verification time of the mainboard is reduced.

In practical applications, the power management circuit, the gamma voltage generation circuit and the logic signal level conversion circuit can be used independently. Illustratively, when the Source board is provided with the power management circuit module, in order to enable the tcontless screen device to realize the tcontless function, the TCON module comprising the gamma voltage generating circuit and the logic signal level conversion circuit can be selected for connection, and two combination modes can be selected according to actual conditions, wherein one combination mode comprises the gamma voltage generating circuit and the other combination mode comprises the logic signal level conversion circuit, and then the two TCON modules are respectively connected with the main board circuit and the Source drive board, so that the two TCON modules work cooperatively to further realize the tcontless function.

Fig. 9 is a schematic structural diagram of a Tconless screen device according to an embodiment of the present invention. As shown in fig. 9, a Tconless screen apparatus includes a main board circuit 103, a Tconless screen 114, and a TCON module 113, where the TCON module 113 is connected to the main board circuit 103 and a source driving board 104 of the Tconless screen 114, respectively, to make the Tconless screen 114 have Tconless function through the main board circuit 103 and the TCON module 113.

Wherein, Tconless screen device refers to a device for installing Tconless screen 114, for example, Tconless screen device is a television, and its used screen is Tconless screen 114. The Tconless screen 114 may also be understood as a display screen, and it is understood that, in the present embodiment, the model of the display screen is not particularly limited, and in the Tconless screen 114, a liquid crystal display screen is generally used. Further, a source driver board 104 is disposed in the Tconless screen 114, and the display content of the Tconless screen 114 can be controlled by the source driver board 104.

In one embodiment, the source drive board 104 of Tconless screen 114 is connected to the output interface of the Tconless module via an FFC, which is a PET insulator and very thin tinned flat copper wire, which is a new type of data cable.

In one embodiment, the specific structure of the TCON screen device with tcontless function will be described by taking the example that the TCON module 113 includes the power management circuit 117, the gamma voltage generation circuit 118, and the logic signal level conversion circuit 119. At this time, as shown in fig. 10, the main board circuit 103 includes an SOC module 124, the source driving board 104 includes a first source driving board 115 and a second source driving board 116, and the TCON module includes a power management circuit 117, a gamma voltage generation circuit 118, and a logic signal level conversion circuit 119. The TCON module is connected to the first source driving board 115 through the first FFC120, and the TCON module is connected to the second source driving board 116 through the second FFC 121. A first FFC socket 122 is arranged at one end of the output interface of the Tconless module, which is used for connecting the first FFC120, and a second FFC socket 123 is arranged at one end of the output interface of the Tconless module, at this time, one ends of the first FFC120 and the second FFC121 are respectively connected to the first FFC socket 122 and the second FFC socket 123, the other end of the first FFC120 is connected to the input port of the first source drive board 115, the other end of the second FFC121 is connected to the input port of the second source drive board 116, the output port of the first source drive board 115 and the output port of the second source drive board 116 are respectively connected to the input port of the Tconless screen 114, and the SOC module 124, which is a motherboard circuit, is connected to the input interface of the TCON module.

In an embodiment, taking a Tconless screen with a size of 43 inches as an example, in this embodiment, a TCON circuit in a TCON module includes a power management circuit, a GAMMA voltage generation circuit, and a logic signal level conversion circuit, where a PMU chip of the power management circuit employs ANX6862, a gama chip of the GAMMA voltage generation circuit employs ANX7911, and a Levelshift chip of the logic signal level conversion circuit employs SY 7510.

The external interface of the power management circuit comprises: the system comprises a first voltage input interface, an AVDD signal output interface, an HAVDD signal output interface, a DVDD signal output interface, a VGH signal output interface, a VGL signal output interface and communication interfaces SDA and SCL, wherein the communication interfaces SDA and SCL are also connected with a mainboard circuit, and can realize communication with the mainboard circuit, so that the mainboard circuit controls a PMU chip through the communication interfaces. The external interface of the gamma voltage generating circuit comprises an output interface of a reference voltage signal, an output interface of a gamma voltage signal and communication interfaces SDA and SCL, wherein the gamma voltage generating circuit further comprises: the input interface of AVDD signal and the input interface of DVDD signal are used for receiving AVDD signal and DVDD signal generated by power management circuit, the communication interfaces SDA and SCL are also connected with the mainboard circuit, and can realize communication with the mainboard circuit, so that the mainboard circuit controls GAMMA chip through the communication interface. The external interface of the logic signal level conversion circuit comprises a voltage control input interface, a clock output interface, a voltage control output interface and a ground interface, wherein the voltage control input interface comprises an STV _ IN signal input interface and a CLR _ IN signal input interface, the voltage control output interface comprises an STV _ OUT signal input interface and a CLR _ OUT signal input interface, the clock output interface comprises eight CLK output interfaces, and the ground interface comprises a VSS interface. The logic signal level conversion circuit further includes: the input interface of the VGH signal and the input interface of the VGL signal are used for receiving the VGH signal and the VGL signal generated by the power management circuit.

When 43 cun Tconless screen is designed, the staff only needs to select proper TCON module in the module library and connect the external interface of the TCON module with the corresponding interface on the mainboard circuit and the corresponding interface in the source drive board respectively, and the Tconless screen can have the function of Tconless by only completing the routing of the interface without repeated fussy TCON circuit layout and wiring work in the process.

The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the utility model, may occur to those skilled in the art and are intended to be included within the scope of the utility model.

Claims (10)

1. The TCON module is characterized by comprising a TCON circuit, an input interface and an output interface, wherein the TCON circuit comprises at least one of a power management circuit, a gamma voltage generation circuit and a logic signal level conversion circuit;

the TCON circuit is connected with a mainboard circuit corresponding to the Tconless screen through the input interface,

the TCON circuit is connected with a source drive plate corresponding to the Tconless screen through the output interface, so that the Tconless screen has a Tconless function.

2. The TCON module of claim 1, wherein the TCON circuit comprises the power management circuit;

the input interface comprises a first voltage input interface for receiving a first voltage signal, the first voltage signal being generated by the motherboard circuit and used for providing power for the power management circuit;

the output interface comprises a first voltage output interface for outputting a second voltage signal generated by the power management circuit and used to provide a supply voltage for the Tconless screen.

3. The TCON module of claim 1, wherein the TCON circuit comprises the gamma voltage generating circuit;

the input interface comprises a second voltage input interface for receiving a third voltage signal, the third voltage signal is generated by the mainboard circuit and is used for providing power supply for the gamma voltage generating circuit;

the output interface comprises a second voltage output interface for outputting a fourth voltage signal generated by the gamma voltage generation circuit and used to provide a voltage subdivision reference for the Tconless screen.

4. The TCON module of claim 1 or 3, wherein the TCON circuit comprises the logic signal level conversion circuit;

the input interface comprises a third voltage input interface for receiving a fifth voltage signal and a voltage control input interface for receiving an image scanning control signal, wherein the fifth voltage signal is generated by the mainboard circuit and is used for providing power for the logic signal level conversion circuit;

the output interface comprises a clock output interface for outputting a plurality of clock signals and a voltage control output interface for outputting image scanning conversion signals, each clock signal corresponds to one clock output interface, the image scanning conversion signals are obtained through the image scanning control signals, and the clock signals and the image scanning conversion signals are used for controlling imaging contents of the Tconless screen.

5. The TCON module of claim 2, wherein the TCON circuit further comprises the gamma voltage generation circuit, the power management circuit comprises a first sub-output interface, the gamma voltage generation circuit comprises a first sub-input interface,

the first sub-output interface is used for sending the second voltage signal to the gamma voltage generating circuit through the first sub-input interface, and the second voltage signal is also used for providing power supply for the gamma voltage generating circuit;

the output interface further comprises a second voltage output interface for outputting a fourth voltage signal generated by a gamma voltage generation circuit and used to provide a voltage subdivision reference for the Tconless screen.

6. The TCON module of claim 5, wherein the second voltage signal comprises: an AVDD signal, an HAVDD signal, a DVDD signal, a VGH signal, and a VGL signal;

the first voltage output interface comprises: an output interface of AVDD signal, an output interface of HAVDD signal, an output interface of DVDD signal, an output interface of VGH signal and an output interface of VGL signal;

the first sub-output interface includes: an output interface for transmitting an AVDD signal and an output interface for transmitting a DVDD signal;

the first sub-input interface comprises: an input interface for receiving an AVDD signal and an input interface for receiving a DVDD signal;

the fourth voltage signal includes: a reference voltage signal and a plurality of gamma voltage signals;

the second voltage output interface comprises: the output interface of the reference voltage signal and the output interface of a plurality of gamma voltage signals, and each gamma voltage signal corresponds to an output interface.

7. The TCON module of claim 2 or 5, wherein the TCON circuit further comprises a logic signal level conversion circuit, the power management circuit comprises a second sub-output interface, and the logic signal level conversion circuit comprises a second sub-input interface;

the second sub-output interface is used for sending the second voltage signal to the logic signal level conversion circuit through the second sub-input interface, and the second voltage signal is also used for providing power supply for the logic signal level conversion circuit;

the input interface also comprises a voltage control input interface for receiving an image scanning control signal;

the output interface further comprises a clock output interface for outputting a plurality of clock signals and a voltage control output interface for outputting image scanning conversion signals, each clock signal corresponds to one clock output interface, the image scanning conversion signals are obtained through the image scanning control signals, and the clock signals and the image scanning conversion signals are used for controlling imaging contents of the Tconless screen.

8. The TCON module of claim 7, wherein the second voltage signal comprises: an AVDD signal, an HAVDD signal, a DVDD signal, a VGH signal, and a VGL signal;

the first voltage output interface comprises: an output interface of AVDD signal, an output interface of HAVDD signal, an output interface of DVDD signal, an output interface of VGH signal and an output interface of VGL signal;

the second sub-output interface includes: the output interface is used for sending a VGH signal and the output interface is used for sending a VGL signal;

the second sub-input interface comprises: an input interface for receiving a VGH signal and an input interface for receiving a VGL signal;

the image scanning control signal includes: a start control signal and a clear control signal;

the voltage control input interface includes: the input interface is used for receiving the starting control signal and the input interface is used for receiving the zero clearing control signal;

the image scan conversion signal includes: an initial conversion signal obtained by converting the initial control signal and a zero clearing conversion signal obtained by converting the zero clearing control signal;

the voltage control output interface includes: and the output interface of the initial conversion signal and the output interface of the zero clearing conversion signal.

9. The TCON module of claim 1, wherein the power management circuit comprises a PMU chip, the GAMMA voltage generation circuit comprises a GAMMA chip, and the logic signal level conversion circuit comprises a Levelshift chip.

10. A Tconless screen apparatus comprising motherboard circuitry, a Tconless screen and a TCON module as claimed in any one of claims 1 to 9,

the TCON module is respectively connected with the mainboard circuit and a source drive plate of the Tconless screen, so that the Tconless screen has a Tconless function through the mainboard circuit and the TCON module.

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