CN1560828A - Control chip module and control method thereof - Google Patents

Abstract

The invention relates to a control chip module and a control method thereof, which are applicable to a display and used for receiving information transmitted by a network, storing the content of the information and transmitting the content to a display panel of the display for displaying. The control chip module comprises: a processor for receiving the information and generating a first control signal and a second control signal; a storage unit for storing the information in a specific area designated by the processor in response to the control of the first control signal; a screen processing circuit electrically connected to the processor, reading the content of the information from the specific area of the storage unit in response to the control of the second control signal, and displaying the content of the information on the display panel; and a selector electrically connected to the processor, the storage unit and the screen processing circuit for selecting one of the processor and the screen processing circuit to store or read the information in the storage unit.

Description

Control chip module and its control method

technical field

The invention relates to a control chip module and a control method thereof, in particular to a control chip module suitable for a display and a control method thereof.

Background technique

In homes, offices or various public places, displays have become the best interface for people to retrieve various information. Currently there are various displays on the market, such as cathode ray tube display, liquid crystal display, plasma display, electro-luminescent display and Field emission display (field emission display) has been widely used in various electrical or information products, such as desktop computers, notebook computers, audio-visual products, communication equipment and personal digital assistants, etc., and has gradually become an indispensable part of life. missing part.

Please refer to FIG. 1 , which is a schematic circuit diagram of a conventional display. Known traditional display 10 in the figure, such as liquid crystal television (TV) or monitor (Monitor), is mainly made up of control chip module 11 and display panel 12, and it receives the signal that video input terminal (video source) 13 transmits And after being processed by the internal circuit of the control chip module 11 , it is displayed through the display panel 12 .

The control chip module 11 mainly plays an intermediary role between the video input terminal 13 and the display panel 12, and is specially responsible for signal reception, conversion, processing and output. Its core components include a video decoder (Video Decoder) 111, a deinterlacing scanner (De-Interlacer) 112, scaling controller (Scalar Engine) 113, microprocessor (microprocessor) 114, screen display (On Screen Display, OSD) circuit 115, etc. Wherein, the video decoder 111 includes a comb filter function, which can separate the analog signal input from the video input terminal 13 and convert it into a digital signal. The de-interlacer 112 mainly converts interlaced scanning used for television signals into progressive scanning. The scaling controller 113 can adjust the image resolution or shape and size input by different audio-visual devices, and refill the original pixel matrix of a liquid crystal display (LCD). The screen display adjustment circuit 115 is responsible for adjusting the screen display brightness, contrast, vertical and horizontal positions.

In addition, the main function of the microprocessor 114 is in the video processing process. When the video decoder 111 and the de-interlacing scanner 112 have relatively frequent instruction requirements, the microprocessor 114 will cooperate with the above two components and use the written Procedures are defined or controlled. Another main function of the microprocessor 114 is to be responsible for the coordination of screen display adjustment appearance and font conversion. It can display the operation selection list (menu) on the display panel 12, and its working mode is to control the screen display circuit 115 to output The bitmaps stored in the read-only memory (ROM) 116 in advance enable the display panel 12 to display the contents of the operation menu.

Since the microprocessor 114 itself does not need to have complex video functions, it has the advantages of simple structure and low cost. However, the screen display circuit 115 controls the output and display content to exist in the read-only memory 116 in advance, so it cannot be changed dynamically. The information sent and displayed.

Therefore, how to develop a display control chip module and its control method that can improve the above-mentioned known technical defects and can utilize the microprocessor to receive and display the information transmitted by the network is an urgent problem to be solved at present.

Contents of the invention

The main purpose of the present invention is to provide a control chip module suitable for a display and its control method, to control the display of the display through a network connection, and to directly display the information transmitted by a remote device on the display, thereby solving the problem of Traditional displays can only simply provide display functions and other defects.

In order to achieve the above object, a more generalized embodiment of the present invention provides a control chip module, suitable for a display, to receive a message sent by a network, store the content of the message, and send it to the display displayed on a display panel. The control chip module includes: a processor for receiving the information and generating a first control signal and a second control signal; a storage unit for storing the information in the first control signal according to the control of the first control signal In a specific area designated by the processor; a screen processing circuit, electrically connected to the processor, reads the content of the information from the specific area of the storage unit in response to the control of the second control signal, and converts the information content displayed on the display panel; and a selector, which is electrically connected to the processor, the storage unit and the screen processing circuit, and is used to select one of the processor or the screen processing circuit for the storage unit Perform steps to store or read the information.

To achieve the above object, the present invention also provides a display for receiving information transmitted by a network. The display includes: a display panel; a control chip module electrically connected to the display panel for storing the information and displaying the content of the information on the display panel, which includes: a processor for receiving the information , and generate a first control signal and a second control signal; a storage unit, which stores the information in a specific area in response to the control of the first control signal; a screen processing circuit, electrically connected to the processor , which reads the content of the information from the specific area of the storage unit in response to the control of the second control signal, and displays the content of the information on the display panel; and a selector, which is connected with the processor, The storage unit and the screen processing circuit are electrically connected to select one of the processor or the screen processing circuit to store or read the information in the storage unit.

In order to achieve the above object, the present invention also provides a control method, which is suitable for a display, and is used to receive information transmitted by a network and transmit the content of the information to a display panel of the display for display, and the The display includes a storage unit, a screen processing circuit and a processor. The control method includes the following steps: receiving the information; selecting to allow the processor to store the information in a specific area of the storage unit; and selecting to allow the screen processing circuit to read the content of the information in the specific area, and store the information displayed on the display panel.

The present invention is illustrated by the following figures and examples to gain a deeper understanding.

Description of drawings

FIG. 1 : It is a schematic diagram of the circuit structure of a known display.

FIG. 2 : It is a schematic block diagram of a hardware structure of a display connected to a remote device according to a preferred embodiment of the present invention.

FIG. 3 : It is a schematic block diagram of a hardware structure in which a display is connected to a computer according to another preferred embodiment of the present invention.

Fig. 4: It is a flow chart of using the control chip module of the present invention to control the display to display information content.

Wherein, the reference signs are explained as follows:

10: Display 11: Control chip module

13: Video input terminal 111: Video decoder

112: Deinterlacing Scanner 113: Scaling Controller

114: Microprocessor 115: Screen display circuit

116: read-only memory 20: display

12, 21: Display panel 22: Control chip module

221: Microprocessor 222: Screen display circuit

223: Multi-tasker 224: Random access memory

225: ROM 23: Network

24: Remote device 26: Switch

27: Ethernet 28: Computer

25: Peripheral component connection interface bridge

261: Peripheral Component Connection Interface Network Card

S40～S43: Steps of controlling the display to display information content

Detailed ways

The present invention is a control chip module and its control method, which can use the microprocessor to receive the information sent by the network and display it on the display panel of the display, thereby improving the function of the known display which is purely for display.

Please refer to FIG. 2 , which is a schematic block diagram of a hardware structure of a display connected to a remote device according to a preferred embodiment of the present invention. As shown in the figure, the display 20 of the present invention can be connected to a remote device 24 through a network 23 to receive information output by the remote device 24 . Its structure mainly includes a display panel 21 and a control chip module 22 . Wherein, the control chip module 22 can receive the information output by the remote device 24 through the network 23 , and store and transmit the content of the information to the display panel 21 of the display 20 for displaying. The core components of the control chip module 22 mainly include a video decoder 111 , a deinterlacing scanner 112 , a scaling controller 113 , a processor, a screen processing circuit, a selector, and a storage unit. Since the architecture and principle of the video decoder 111 , the de-interlacer 112 and the scaling controller 113 are well-known technologies, they are not repeated here.

Please refer to Fig. 2 again, in this embodiment, the processor is a microprocessor (microprocessor) 221, and its main function is to receive the information transmitted from the network 23, and generate the first control signal and the first control signal according to the received information. Second control signal. The storage unit can be a dynamic random access memory (RAM) 224 , which is controlled by the first control signal of the microprocessor 221 to store information content in a specific area designated by the microprocessor 221 . The screen processing circuit is preferably an on-screen display circuit (OSD Circuit) 222, which is mainly controlled by the second control signal of the microprocessor 221, and reads the content of the specified information in the specific area of the dynamic random access memory 224, and The content of the information is processed by the scaling controller 113 and displayed on the display panel 21 of the display 20 .

In addition, in order to avoid signal conflicts when the microprocessor 221 and the screen display circuit 222 access the random access memory 224 at the same time, the control chip module 22 can be provided with a selector, such as a multiplexer (Multiplexer) 223, on the microprocessor 22 1. Between the screen display circuit 222 and the random access memory 224, to implement bus arbitration (Bus Arbitration), whereby one of the microprocessor 221 or the screen display circuit 222 can be selected to allow the dynamic random access memory 224 The step of storing or reading the information is performed, thereby avoiding signal conflicts when the microprocessor 221 and the screen display circuit 222 simultaneously access the random access memory 224 .

Please refer to Fig. 2 again, in order to ensure the correctness of the initial picture when starting the machine, the control chip module 22 can also add a read-only memory (ROM) 225, so that it is electrically connected with the microprocessor 221. Since the content of the DRAM 224 is random garbled codes when the power is turned on, it is not valid content, so the microprocessor 221 must copy the basic input and output system when starting the computer according to the content of the read-only memory 225 when the power is turned on ( BIOS Shadowing) mode, generate the initial picture and fill it in the random access memory 224, and control the screen display circuit 222 to display the initial picture on the display panel 21, so as to ensure the correctness of the initial picture content when starting up.

Of course, in the above-mentioned embodiments, the display can be a cathode ray tube television (CRT TV), a cathode ray tube monitor (CRT Monitor), a liquid crystal television (LCD TV), a liquid crystal monitor (LCDMonitor), a plasma television (Plasma TV) ), Plasma Monitor, Projector TV or Projector Monitor. In addition, the network 23 can be Internet, Ethernet, wireless network, Universal Serial Bus (USB), FireWire interface (Fire Wire) or packet switching network, etc.

Please refer to FIG. 3 , which is a schematic block diagram of a hardware structure of a display connected to a computer according to another preferred embodiment of the present invention. As shown in the figure, in addition to the display panel 21 and the control chip module 22, the display 20 of the present invention can also include a peripheral component connection interface bridge (PCI Bridge), which is used to connect the interface network card (PCI Bridge) with a peripheral component of a switch 26 ( PCI NIC) 261 carries out data transmission. The display 20 and the switch 26 can be connected by a network cable or by wireless transmission.

In this embodiment, the switch 26 is connected to the computer 28 through the Ethernet network 27. When the computer 28 generates information, the peripheral components of the Ethernet network 27 and the switch 26 can be connected to the interface network card (PCI NIC) and the peripheral of the display 20 in sequence. Component connection interface bridge (PCI Bridge) 25 transmits information to the microprocessor 221 of control chip module 22, and through the operation of other circuits, and then this information is dynamically stored in dynamic random access memory 224, or information The content of is displayed on the display panel 21 of the display 20 . Of course, the content of the information can be a color image, a voice clip, or a video image content, etc.

Please refer to FIG. 4 , which is a flow chart of using the control chip module of the present invention to control the display to display information content. First, the microprocessor 221 receives the information output by the remote device 24 through the network 23, and generates a first control signal and a second control signal (step S40). Next, the multiplexer 223 selects and permits the microprocessor 221 to store information in a specific area of the DRAM 224 (step S41). Subsequently, the multiplexer 223 selects and permits the screen display circuit 222 to read out the content of information from a specific area of the DRAM 224 (step S42 ). Finally, the content of the information is displayed on the display panel 21 of the display 20 after being processed by the scaling controller 113 (step S43 ). Through the control process of the control chip module of the present invention, the information output by the remote device 24 can be transmitted through the network 23 and stored in the DRAM 224 or directly displayed on the display panel 21 of the display 20 .

In summary, the control chip module and its control method of the present invention can achieve the function of directly displaying the information transmitted by the remote device on the display through the network without additional video signal input, thereby improving the known display that is only purely for display defects. In addition, because the control chip module of the present invention adds a dynamic random access memory, the information content can be changed dynamically. Moreover, the control chip module of the present invention can perform bus arbitration through the setting of a multiplexer, and solve signal conflicts that may occur when the microprocessor and the screen display circuit access information at the same time.

The present invention can be modified in various ways by those skilled in the art without departing from the protection scope of the appended claims.

Claims (11)

1. a control chip module is applicable to a display, in order to receiving an information that is transmitted by a network, and the content of this information is stored, and a display panel that is sent to this display shows that this control chip module comprises:

One processor in order to receiving this information, and produces one first control signal and one second control signal;

One storage element, it is deposited in this information in one specific region of this processor appointment in response to the control of this first control signal;

One screen treatment circuit is electrically connected on this processor, and the content of this information is read in this specific region of this storage element that arrives in response to the control of this second control signal for it, and the content of this information is shown on this display panel; And

One selector switch, it is electrically connected with this processor, this storage element and this screen treatment circuit, and one of them deposits or reads the step of this information to this storage unit in order to select this processor or this screen treatment circuit.

2. control chip module as claimed in claim 1, it is characterized in that this display is a cathode-ray tube TV, a CRT monitor, a LCD TV, a LCD monitor, a plasma TV, a plasma monitor, a projection TV or a projection monitors.

3. control chip module as claimed in claim 1 is characterized in that, this processor is a microprocessor, in order to receiving this information, and produces this first control signal and this second control signal.

4. control chip module as claimed in claim 1 is characterized in that, this storage element is a stochastic and dynamic access memory, in order to be subjected to the control of this processor, with this information storage this specific region in appointment.

5. control chip module as claimed in claim 1, it is characterized in that, this screen treatment circuit is an on-screen display circuit, and the control that it is subjected to this second control signal of this processor is shown in the content that is stored in this information of this storage element on this display panel.

6. control chip module as claimed in claim 1, it is characterized in that, this selector switch is a multiplexer, one of them deposits or reads the step of this information to this storage unit in order to select this processor or this screen treatment circuit, simultaneously this storage element is carried out access to avoid this processor and this screen treatment circuit.

7. control chip module as claimed in claim 1, it is characterized in that, this control chip module also comprises a ROM (read-only memory), be electrically connected on this processor, when when start this processor must produce an initial picture according to the content of this ROM (read-only memory) and deposit in this storage element, and control this screen treatment circuit this start picture is shown on this display panel, the correctness of this start picture content when guaranteeing to start shooting.

8. control chip module as claimed in claim 1, it is characterized in that, this network is connected with a remote-control device, and this remote-control device produces this information, and wherein this network is a world-wide web, an Ethernet, a wireless network, a USB (universal serial bus), a fire-wire interfaces or a Packet Switching Network PSN.

9. display, in order to receive the information that is transmitted by a network, wherein, this display comprises:

One display panel;

One control chip module is electrically connected on this display panel, also the content of this information is shown on this display panel in order to store this information, and it comprises:

One processor in order to receiving this information, and produces one first control signal and one second control signal;

One storage element, it is deposited in this information in one specific region in response to the control of this first control signal;

One screen treatment circuit is electrically connected on this processor, and the content of this information is read in this specific region of this storage element that arrives in response to the control of this second control signal for it, and the content of this information is shown on this display panel; And

One selector switch, it is electrically connected with this processor, this storage element and this screen treatment circuit, and one of them deposits or reads the step of this information to this storage unit in order to select this processor or this screen treatment circuit.

10. control method, it is applicable to a display, in order to receive an information that is transmitted by a network, and the display panel that the content of this information is sent to this display shown, and this display comprises a storage element, a screen treatment circuit and a processor, and this control method comprises the following step:

Receive this information;

Select to permit the specific region that this storage element deposited in this information by this processor;

Select to permit the content that this information is read in this screen treatment circuit to this specific region, and the content of this information is shown on this display panel.

11. control method as claimed in claim 10, it is characterized in that, this control method is by a multiplexer, one of them deposits or reads the step of this information to this storage unit to select this processor or this screen treatment circuit, simultaneously this storage element is carried out access to avoid this processor and this screen treatment circuit.