Background
With the progress of society, human beings increasingly rely on various information such as business information, scientific and technological information, medical information, etc., and in order to be able to display such information, the demands of various display devices are increasing. Accordingly, technological efforts are being made in the field of various flat display devices to meet such demands as Liquid Crystal Displays (LCDs), plasma display panels (PLASMA DISPLAY PANEL; PDPs), electro-luminescent display devices (Electro-Luminescent Display; ELDs), vacuum fluorescent display devices (Vacuum Fluorescent Display; VFDs), and the like. A specific type of flat display device is applied to various applications. These display devices typically employ a Printed Circuit Board (PCB) to accommodate a large number of components. The current medium-large size panel electronic system architecture provides a frequency signal and an image data signal synchronized with the frequency signal to the Source driver through the Source driver chip (GATE DRIVER) and the gate driver chip (GATE DRIVER) together with a timing controller (Timing Controller) to drive a display panel.
With the development of communication, network and other technologies, portable electronic products such as smart phones, tablet computers, notebook computers and the like can download audio, video and other data from the network at any time and any place, thereby bringing great convenience to the life of people. People can directly watch image data from a mobile phone, a tablet personal computer or a notebook computer, and can connect a portable electronic product with a large-size display device, such as a television, by means of an interface technology, and the data on the portable electronic product is transmitted to the large-size display device for display. After the development of wireless communication technology, interactive sharing of data among various electronic products has become more convenient. At present, two main modes of connecting Media resources (including routers and the portable electronic products) with a display device are adopted, namely, an on-board Box (Media Box) is adopted as transfer equipment, the Media resources firstly provide image data signals for the on-board Box in a Wireless transmission mode, then the on-board Box provides the image data for the display device for displaying through a cable connected with the display device, and the Wireless adapter (Wireless Dongle) is arranged on the display device, and then the image data signals sent by the Media resources are acquired through the Wireless adapter for displaying.
However, in both wireless sharing manners, a transfer device such as an on-board box and a wireless adapter is required to realize data sharing between the media resource and the on-board box, which is inconvenient to operate and cannot achieve interactive data sharing. In addition, no matter the connection between the display device and the media resources is performed for resource sharing or in a computer system, the connection between the display device and the host needs to use a cable to transmit the image signal to the display device for displaying, so that a certain time is required to be spent for connecting the cable when the computer system is used, the cable occupies space, the environment is easy to be confused and the computer system is not attractive, and inconvenience is caused to a user.
In view of the drawbacks of the prior art, the present inventors have made intensive experiments and researches to provide a display panel based on wireless image driving and a method thereof, which solve the above-mentioned problems of the prior art, and a summary of the present invention, and finally, conceived the present invention to overcome the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a driving method and a driving system based on a display panel, wherein a wireless communication receiving function is added on the display panel, a processor (CPU) can communicate information with the display panel in a wireless communication mode, and a grid driver receives a synchronous signal sent by a time sequence controller in a wireless transmission mode to realize picture driving of the display panel. Therefore, the realization of man-machine separation is achieved, and the technical problems in the prior art are solved.
In order to achieve the purpose of the invention, the technical scheme provided by the invention is as follows:
a driving method based on a display panel, comprising the steps of:
transmitting a command to a cloud server through an operation processing device, wherein the command comprises a data stream for being transmitted to a display panel;
monitoring wireless communication between the cloud server and the display panel according to the information of the command through the operation processing device;
controlling a data stream sent to a display panel from a cloud server, and receiving the data stream by a Central Processing Unit (CPU);
converting the data stream into image data by the CPU, reading the image data by the display panel controller, converting the image data into display data, uploading the display data to the cloud server, and
Display data from the cloud server is received in a wireless mode, so that the display panel is driven.
In one possible design, the display device further comprises a grid driver internally integrated with a wireless signal transceiving circuit, wherein the display panel is divided into display areas by taking wireless transmission addresses of the wireless signal transceiving circuit as marks, the display areas are arranged according to driving sequences, a time sequence controller internally integrated with a wireless data transmitter is used for receiving display data from a cloud server in a wireless mode and converting the display data according to the driving sequences of the display panels to generate synchronous signals, the source driver is connected with the time sequence controller through a flexible circuit board through a plurality of data wire traces and is used for receiving the sent display data and the synchronous signals in a wired mode to drive the display panel according to the synchronous signals and the display data, and the grid driver is used for receiving the synchronous signals in a wireless mode through a wireless signal transceiving circuit to drive the display panel according to the synchronous signals.
In one possible design, the gate driver demodulates the received synchronization signal through the wireless signal receiving circuit and feeds back the receiving condition of the synchronization signal to the timing controller, and the timing controller is used for storing the driving sequence of the display panel through a memory module.
In one possible design, the timing controller stores display data of the display panel through a buffer.
In one possible design, the timing controller reads the driving sequence in the storage module through a data conversion module, and reads the corresponding display data from the buffer according to the driving sequence, so as to convert the image data after the driving sequence is sequenced into the display data and the synchronization signal.
In order to achieve another object of the present invention, another technical solution provided by the present invention is as follows:
a display panel-based driving system comprises an operation processing device, a cloud server, a display panel and a Central Processing Unit (CPU), wherein the CPU is used for executing an instruction, the instruction comprises a processor executable code, and the execution of the instruction comprises:
transmitting a command from the operation processing device to the cloud server, wherein the command comprises a data stream for being transmitted to a display panel;
The operation processing device is used for monitoring wireless communication between the cloud server and the display panel according to the information of the command;
the central processing unit is used for converting the data stream into image data, converting the image data read by the display panel controller into display data and uploading the display data to the cloud server, and
The time schedule controller is used for receiving display data from the cloud server so as to drive the display panel.
In one possible design, the display panel comprises a plurality of source drivers, a plurality of gate drivers, a wireless signal receiving and transmitting circuit and a wireless data transceiver time schedule controller, wherein the printed circuit board is arranged outside the display panel, the wireless data transceiver is integrated inside the time schedule controller and is used for receiving display data from a cloud server in a wireless mode and generating synchronous signals according to display panel driving sequence conversion, the source drivers are arranged in the display panel and are connected with the time schedule controller through a plurality of data lines and are used for receiving the synchronous signals and the display data sent by the time schedule controller and driving the display panel according to the synchronous signals and the display data, the gate drivers are arranged in the display panel and are internally integrated with the wireless signal receiving and transmitting circuit and used for receiving the synchronous signals sent by the wireless data transmitter of the time schedule controller and driving the display panel according to the synchronous signals, and the wireless signal receiving circuit comprises a wireless signal receiving circuit and a wireless signal transmitting circuit, and the wireless signal receiving circuit is used for demodulating the received synchronous signals, and the wireless signal transmitting circuit is used for feeding back the synchronous signal to the time schedule controller.
In one possible design, the timing controller further includes a wireless data receiver, for receiving the feedback signal sent by the gate driver through the wireless signal sending circuit, and providing the demodulated feedback signal to the timing controller for processing.
In one possible design, the timing controller further comprises a storage module, a buffer and a data conversion module, wherein the storage module is used for storing the driving sequence of the display panel, the buffer is used for storing the display data of the display panel, and the data conversion module is used for reading the driving sequence in the storage module, reading the corresponding display data from the buffer according to the driving sequence and generating a synchronous signal according to the conversion of the driving sequence of the display panel.
Detailed Description
The detailed description and technical content of the present invention are described below with reference to the drawings, which are, however, provided for reference and illustration only and are not intended to limit the present invention. Various embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments only. The invention is intended to cover any alternatives, modifications, equivalents, and variations that fall within the spirit and scope of the invention. In the following description of preferred embodiments of the invention, specific details are set forth in order to provide a thorough understanding of the invention, and the invention will be fully understood to those skilled in the art without such details.
Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The use of the terms "comprising," "including," "having," and the like in this disclosure are intended to cover a component or object recited after the word as it appears before the word and its equivalents, without excluding other components or objects. The terms "upper", "lower", and the like are used only to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly.
Fig. 1-2 are diagrams showing a wireless driving system and a wireless driving method according to the present invention. The system is mainly characterized in that an image on a display of an operation processing device is wirelessly displayed on a remote display by the technology. A display of an arithmetic processing device may be referred to as a desktop display, and may include icons and applications at various locations on the desktop display. Incidentally, the arithmetic processing devices shown in the drawings are shown as the same.
The wireless driving system based on the display panel comprises an operation processing device, a cloud server, the display panel and a Central Processing Unit (CPU), wherein the Central Processing Unit (CPU) comprises a control chip (such as a display panel controller) and is used for being configured to execute an instruction, the instruction comprises a processor executable code, and the execution of the instruction is used for explaining the wireless driving method of the invention and comprises the following steps:
s1, transmitting a command to a cloud server through an operation processing device, wherein the command comprises a data stream for being transmitted to a display panel;
s2, monitoring wireless communication between the cloud server and the display panel through the operation processing device according to the information of the command;
S3, controlling the data stream sent to the display panel from the cloud server, and receiving the data stream by a Central Processing Unit (CPU);
S4, decoding and decrypting the data stream through a Central Processing Unit (CPU) to generate image data, reading the image data by a display panel controller (not shown) in the CPU, converting the image data into display data, and uploading the display data to a cloud server;
and S5, receiving display data from the cloud server in a wireless mode, so as to drive the display panel.
According to an embodiment of the invention, the operation processing device may be, for example, a laptop computer, desktop computer, tablet computer, mobile device, server or web phone, etc. The operation processing device may include a Central Processing Unit (CPU) configured to execute the stored instructions, and a memory device storing instructions executable by the CPU. The CPU may be a single core processor, a multi-core processor, a computer cluster, or any number of other configurations. In addition, the operation processing device may include more than one CPU. The instructions executed by the CPU can be used to execute the wireless driving of the display panel in the cloud mode. The memory device may include Random Access Memory (RAM), read Only Memory (ROM), flash memory, or any other suitable memory system. For example, the memory device may comprise Dynamic Random Access Memory (DRAM).
As described above, referring to fig. 3, the display panel in the driving system of the present invention includes a display panel 10, a printed circuit board (Printed Circuit Board, PCB) 11, and a flexible circuit board (Flexible Printed Circuit Board, FPCB) 12 connecting the display panel 10 and the printed circuit board 11. The wireless image driving architecture supporting the display panel comprises a timing controller 20, a plurality of source drivers 30 and a plurality of gate drivers 40. The printed circuit board 11 is provided with a power supply circuit (not shown), a timing controller (Timing Controller, T-CON) 20, an external signal interface circuit (not shown), and the like.
The timing controller 20 generates a display data signal such as a Low swing differential signal (Low Voltage DIFFERENTIAL SIGNAL, LVDS) and various display control signals such as a vertical pulse Start signal (START VERTICAL, STV), a vertical pulse signal (Clock Pulse Vertical, CPV), a Horizontal pulse Start Signal (STH), a Horizontal pulse signal (Clock Pulse Horizontal, CPH), a polarity inversion signal, etc. according to the received image signal such as the Low Voltage differential signal (Low Voltage SWING DIFFERENTIAL SIGNAL, RSDS), and supplies the generated signals to the circuits on the display panel 10 via the flexible circuit board 12.
The timing controller 20 receives display data from the cloud server in a wireless manner and converts the display data according to a display panel driving sequence to generate a synchronization signal, wherein the timing controller 20 is internally integrated with a data conversion module 201 and a wireless data transceiver 202, the wireless data transceiver 202 mainly comprises a wireless data transmitter (not shown) and a wireless data receiver (not shown), the wireless data transmitter is used for transmitting the display data and the synchronization signal to the corresponding gate driver 40, and the wireless data receiver is used for receiving the display data from the cloud server or feedback of the gate driver 40.
The printed circuit board 11 may further include a Memory module 21 and a buffer 22, where the Memory module 21 is connected to the timing controller 20, and may use an electrically erasable programmable read-Only Memory (EEPROM, ELECTRICALLY ERASABLE PROGRAMMABLE READ-Only Memory) to store the driving sequence of the display panel 10, each of the driven wireless data receivers has a corresponding wireless transmission address, the wireless transmission address of each wireless data receiver is stored in the EEPROM as a mark of the driving sequence, the buffer 22 may be externally connected to the timing controller 20 and used for temporarily storing the display data of the display panel 10, and the data conversion module 201 is used for reading the driving sequence of the display panel 10 in the Memory module 21, reading the corresponding display data from the buffer 22 according to the read driving sequence, and converting the display data ordered according to the driving sequence to generate a synchronization signal.
The source driver 30 is disposed in the display panel 10 and connected to the timing controller 20 through a plurality of data lines (not shown), receives the synchronization signals and the display data transmitted from the timing controller 20 through the data lines, and drives the display panel 10 according to the synchronization signals and the display data. In addition, the data lines of the source driver 30 are connected through the nonfunctional pins or the idle pins on the flexible printed circuit board 12 to provide the received signals to the timing controller 20 on the printed circuit board 11 through the flexible printed circuit board 12, which does not need to change the existing flexible printed circuit board 12.
The gate driver 40 is disposed in the display panel 10 and internally integrated with a wireless signal transceiving circuit (WIRELESS TRANSCEIVER) 41, the wireless signal transceiving circuit 41 including a wireless signal receiving circuit (not shown) for receiving a synchronization signal transmitted by the wireless data transmitter 202 of the timing controller 20 and demodulating the received synchronization signal and driving the display panel according to the synchronization signal, and a wireless signal transmitting circuit (not shown) for feeding back the reception of the synchronization signal to the timing controller 20.
According to an embodiment of the present invention, the wireless signal transceiver circuit 41 may be made of a transparent conductive material such as Indium Tin Oxide (ITO) or a metal conductive material such as Copper (coppers) and disposed in the non-display area of the display panel 10, and may be formed in the same manufacturing process as the electrodes in the pixel circuits on the display panel 10.
According to an embodiment of the present invention, the timing controller 20 may directly read the display data of the display panel 10 and process the display data without providing the external buffer 22 when the transmission amount of the image data per frame is relatively small. In the case where the driving order does not need to be changed, the driving order may be set in the timing controller 20, and the memory module 21 is not required. Further, when the feedback of the synchronization signal or the reception of the display data is not required, the gate driver 40 does not need to have a wireless signal transmission circuit integrated therein, and the timing controller 20 does not need to have a wireless data receiver integrated therein.
Referring to fig. 4, based on the driving method of the present invention, the processing flow of the driving method corresponding to the step S5 further includes the following steps:
Step S51, the grid driver integrated with the wireless signal receiving and transmitting circuit takes the wireless transmission address of the wireless signal receiving and transmitting circuit as a mark, divides the display panel into display areas and arranges the display areas according to the driving sequence;
Step S52, a time schedule controller integrated with a wireless data transmitter reads display data according to a display panel driving sequence and generates a synchronous signal according to the display data sequenced by the driving sequence;
Step S53, the source driver is connected with the time schedule controller through a flexible circuit board by a plurality of data wire traces, receives the sent display data and the synchronous signals in a wired mode, and drives the display panel according to the synchronous signals and the display data;
in step S54, the gate driver receives the synchronization signal wirelessly through the wireless signal transceiver circuit to drive the display panel according to the synchronization signal and the display data.
In this embodiment, each wireless data transceiver has a corresponding wireless transmission address, and the wireless transmission addresses of the wireless transmission receivers are used as a marker to divide the liquid crystal display panel into areas, and the divided image data are arranged according to the driving sequence and stored in the storage module. Here, the image data of each frame is divided into a plurality of small blocks according to the liquid crystal display panel region, and the image data is the image data which needs to be displayed on the display panel 10.
In the method, the driving sequence can be set according to the requirement of a user, and the functions of image inversion and the like can be realized by changing the driving sequence. Meanwhile, for different types of display panels, after the driving sequence is changed, wireless communication between the time sequence controller and the grid driver is not affected, and the corresponding liquid crystal display panel can still be driven. The image data of one line of the display panel may be directly processed by the timing controller if the transmission amount of the image data per frame is relatively small, and at the same time, if only one driving order is adopted, the driving order may be directly set in the timing controller.
In summary, the driving method and system based on a display Panel of the present invention mainly includes providing a wireless transceiver circuit in a non-display area of the display Panel, enabling a processor (CPU) to communicate information with a Panel (LCD Panel) in a wireless communication manner, and enabling a gate driver to receive a synchronization signal sent by a timing controller in a wireless transmission manner to realize image driving of the display Panel. The grid driver receives the synchronous signal sent by the time sequence controller in a wireless transmission mode to realize the picture driving of the display panel, so that signal wires (scanning lines) connected with the grid driver in the display panel are removed, and feedback signals such as successful matching are sent through a wireless receiving and transmitting circuit. The invention thus has the following advantages to achieve the realization of human-machine separation
1. The lighting area and structure of the display panel can be simplified.
2. The drive components of the individual panels may be controlled by a cloud server (network).
3. The Central Processing Unit (CPU) can be simplified into a Cloud chip (Cloud chip), and complex operation and data are put in the Cloud to achieve human-computer separation.
While the foregoing description illustrates and describes several preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept herein, either as a result of the foregoing teachings or as a result of the knowledge or skills of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.