CN102098468B - Simulated television display device and image data transfer method thereof - Google Patents
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Abstract
The invention discloses a kind of simulated television display device and image data transfer method thereof, simulated television display device includes: simulated television receiver module, for receiving anolog TV signals and being converted into the view data that the display parameters with liquid crystal display device module match；Liquid crystal display device module, for receiving view data and clock signal from simulated television receiver module and showing view data；Control module, for initializing simulated television receiver module and liquid crystal display device module and arranging the display parameters of liquid crystal display device module, it is additionally operable to monitoring display process control menu image data and/or feedback information based on user operation instruction to be exported on liquid crystal display device module according to user operation instruction；Logic switch, for opening to transmit data output clock signal to liquid crystal display device module and cutting out when receiving invalid CTR when control module receives effective CTR signal.The present invention eliminates multimedia coprocessor, saves system cost.
Description
Technical field
The present invention relates to view data transmission and simulated television field, particularly relate to a kind of simulated television display device and image data transfer method thereof.
Background technology
Nowadays, wireless communication technology is widely applied in daily life, and mobile telephone terminal is also popularized because of its convenience used.Along with expanding economy and the progress of science and technology, the living standard of people is greatly improved, and Low-end mobile phones terminal multi-media technology cannot meet the needs of people, and the multimedia handset with analog television function is increasingly pursued by people.Analog television mobile phone refers to receive chip by built-in anolog TV signals, and real-time reception also processes the anolog TV signals spread out of from each television station's analogue signal transmitter, thus realizes viewing and synchronize the mobile phone terminal of free television program.Compared with other Digital Video Broadcasting Handheld, analog television mobile phone has type variation selection, terminal price is cheap, watch the multinomial advantages more pressing close to consumer demand such as the most free.The infrastructure of simulated television, through the development of more than 60 years, has had huge resource and coverage rate, and most area on our times, especially developing country are still most convenient television reception mode.
Fig. 1 is the structural representation simulating television display equipment in prior art.As it is shown in figure 1, traditional analog television display device includes: simulated television receives chip, for the anolog TV signals of reception antenna end, after demodulation and decoding, the sequential output image specified with ITU-R BT.601/656 digital video standard；Data, for receiving the picture signal of ITU-R BT.601/656 digital video standard, after receiving a full two field picture, are delivered to baseband chip, or are directly sent on liquid crystal display display by multimedia coprocessor (MULTIMEDIA CO-PROCESSOR).The function of this part is integrated in chip internal by baseband chip that have part；Baseband chip, it is also possible to be the kernel processor chip such as CPU/MCU of other mobile device, for controlling multimedia coprocessor and simulated television receives the work of chip；Camera chip, simulating television reception chip in real system is common data bus and I2C bus the most processed with camera chip, and therefore the mode of operation of the two module must mutual exclusion.
Simulated television display device of the prior art, must increase to be exclusively used in kernel processor chip and process the processing module of simulated television reception chip signal output (such as, multimedia coprocessor), and kernel processor chip must remain in advance store the storage space of 1-2 two field picture (such as, buffer), both all can increase area and the complexity of chip, thus causes the system supporting simulated television in terminal unit than system complex and the costliness not supporting this function.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect that the equipment supporting simulated television display function in prior art is complicated and expensive, it is provided that a kind of simple and lower-cost simulated television display device and image data transfer method thereof.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of simulated television display device is provided, including:
Simulated television receiver module, for receiving anolog TV signals and described anolog TV signals are converted under the control of control module the view data that the display parameters with liquid crystal display device module match directly sending described liquid crystal display device module to by output data line and show；
Liquid crystal display device module, for receiving described view data and data output clock signal from described simulated television receiver module and showing described view data according to arranging of described control module；
Control module, for initializing described simulated television receiver module and described liquid crystal display device module and arranging the display parameters of described liquid crystal display device module so that simultaneous display, it is additionally operable to monitoring display process to close according to user operation instruction or the DOL Data Output Line of simulated television receiver module described in high resistant open oneself to control line and the data/address bus of liquid crystal display device module menu image data will to be controlled and/or the feedback information that instructs based on described user operation exports on described liquid crystal display device module；
Logic switch, for receiving CTR signal from described control module and opening when described CTR signal is effective to transmit from the data output clock signal of described simulated television receiver module and the cut out when described CTR is invalid to described liquid crystal display device module.
In simulated television display device of the present invention, the output interface of described simulated television receiver module, described liquid crystal display device module and described control module is tri-state interface, other module being connected in described bus for the isolation when a module uses bus.
In simulated television display device of the present invention, described simulated television receiver module also includes:
Scale compression unit, for described view data is carried out scale compression so that output image meets the resolution of described liquid crystal display device module；
Screen unit, for shielding row or column unnecessary in described view data so that output image meets on the resolution of described liquid crystal display device module and/or described liquid crystal display device module for showing the size in the region of image.
In simulated television display device of the present invention, described control module is additionally operable to after described simulated television receiver module often exports a two field picture and resets the display parameters of described liquid crystal display device module before output next frame image.
In simulated television display device of the present invention, described simulated television receiver module is additionally operable to send frame synchronizing signal and line synchronising signal to described liquid crystal display device module, and the most effectively and exports described view data effectively triggering of described data output clock signal along to described liquid crystal display device module in described frame synchronizing signal and described line synchronising signal.
The present invention also provides for a kind of image data transfer method in above-mentioned simulated television display device, comprises the following steps:
S1, control module are at resting state and by CTR signal at stop logic switch by I2C bus initialization simulated television receiver module；
S2, described control module are initialized liquid crystal display device module by oneself to control line and the data/address bus of liquid crystal display device module and arrange the display parameters of described liquid crystal display device module；
S3, described control module terminate the resting state of described simulated television receiver module by I2C bus to export view data；
S4, described control module oneself are set to high-impedance state to control line and the described data/address bus of liquid crystal display device module by described, and open described logic switch by CTR signal so that described view data is directly delivered to described liquid crystal display device module display from described simulated television receiver module by described output data line；
S5, described control module close according to user operation instruction or the DOL Data Output Line of simulated television receiver module described in high resistant and open described oneself to control line and the described data/address bus of liquid crystal display device module so that control menu image data and/or the feedback information that instructs based on described user operation are exported on described liquid crystal display device module.
In image data transfer method of the present invention, in step S1, also include control line and the output data line of simulated television receiver module described in high resistant.
In image data transfer method of the present invention, in step S3, also include that described view data is carried out scale compression and shielding processing so that output meets the image of described liquid crystal display device module display parameters.
In image data transfer method of the present invention, in step S4, also include that described control module starts to repeat from described step S1 after described simulated television receiver module often exports a two field picture and before output next frame image.
In image data transfer method of the present invention, the transmittance process of described view data farther includes:
S41, described simulated television receiver module send frame synchronizing signal and line synchronising signal to described liquid crystal display device module；
S42, described simulated television receiver module the most effectively and export described view data effectively triggering of described data output clock signal along to described liquid crystal display device module in described frame synchronizing signal and described line synchronising signal.
Simulated television display device of the present invention and image data transfer method thereof have the beneficial effect that by increasing peripheral a small amount of logic circuit such as logic switch and processing with the part signal exporting ITU601 interface by ATV chip self function interior decay is controlled, it is allowed to produce the input signal being applicable to liquid crystal display, output simulated television image the most on a liquid crystal display, simplify chip structure, save system cost, analog television function can be realized in the mobile device of various band liquid crystal displays.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation simulating television display equipment in prior art；
Fig. 2 is the structural representation of simulated television display device according to an embodiment of the invention；
Fig. 3 is the structural representation of simulated television display device in accordance with another embodiment of the present invention；
Fig. 4 is the flow chart of image data transfer method in simulated television display device according to an embodiment of the invention；
Fig. 5 is the output timing diagram of simulated television (ATV) chip according to an embodiment of the invention；
Fig. 6 is the input timing figure of liquid crystal display (LCD) driving chip according to an embodiment of the invention.
Detailed description of the invention
Fig. 2 is the structural representation of simulated television display device according to an embodiment of the invention.In the present embodiment, simulated television display device includes simulated television receiver module 10, liquid crystal display device module 20, control module 30 and logic switch 40.
Simulated television receiver module 10, may be embodied in simulated television (ATV) chip.Simulated television receiver module 10 may be used for receiving anolog TV signals.In one embodiment of the invention, after simulated television receiver module 10 receives faint radio television signal by antenna, by tuner, radio television signal can be demodulated, amplify, be mixed and detection etc. processes, after filtering high frequency carrier component, obtain the compound composite video signal of PAL, NTSC or SECAM-system formula.The equipment that the audio signal separated in compound composite video signal and view data deliver to correspondence by output data line respectively can be carried out synchronizing to play under the control of control module 30 by simulated television receiver module 10.In various embodiments of the present invention, ATV chip can be the single-chip supporting the demodulation of PAL/NTSC/SECAM full system type pictorial, this chipset video tuner, digital demodulator and decoder are integrated, it is applicable to the mobile terminal device of any band display, such as MP4, notebook computer, Portable television, palm game machine, in-car TV, hand-held DVD player, mobile phone etc., the aspect such as sensitivity, capacity of resisting disturbance, image quality and stability has surmounted far away traditional TV receiving system.The view data of mobile device ATV chip output is typically all ITU-R BT.601/656 form.
Liquid crystal display device module 20, may be used for directly receiving view data and data output clock signal from simulated television receiver module 10, it is also possible to for receiving control signal from control module 30 to show view data according to this control signal.In another embodiment of the present invention, liquid crystal display device module 20 can be also used for receiving from control module 30 and controls menu image data and show that under the control of control module 30 these control menu image data.
Control module 30, may be used for after simulated television system electrification starts by I2C bus initialization
Simulated television receiver module 10 is at resting state and makes its control bus and data/address bus be in high-impedance state.Control module 30 can also control the open and close of logic switch 40 by CTR signal to control the display of liquid crystal display device module 20.Control module 30 can also initialize liquid crystal display device module 20 makes it normally work.In one embodiment of the invention, control module 30 can to show on specified liquid crystal display by arranging the special control depositor in liquid crystal display device module 20 region of image.It addition, control module 30 can be also used for monitoring display process to instruct closedown or the DOL Data Output Line of high resistant simulated television receiver module 10 control line opening liquid crystal display device module 20 and NLD bus control menu image data and feedback information to be exported on liquid crystal display device module 20 according to user operation.
Logic switch 40, may be used for being turned on and off controlling under the control of control module 30 transmission of the data output clock of simulated television receiver module 10.In the present embodiment, logic switch 40 may be used for receiving CTR signal from control module 30 and opening to transmit the data output clock signal from simulated television receiver module 10 to liquid crystal display device module 20 when CTR signal is effective, and logic switch 40 can cut out when CTR invalidating signal and terminate transmitting data output clock to liquid crystal display device module 20.CTR signal can be set to low effective or high effectively.
In the course of the work, after simulated television system electrification starts, control module 30 can be at resting state by I2C bus initialization simulated television receiver module 10 and be made its control bus and data/address bus be in high-impedance state.Further, control module 30 can also be passed through CTR signal at stop logic switch 40 thus avoid simulated television receiver module 10 to transmit data output clock to liquid crystal display device module 20.It is made normally to work it addition, control module 30 can also initialize liquid crystal display device module 20.Such as, control module 30 can to show on specified liquid crystal display by arranging the special control depositor in liquid crystal display device module 20 region of image.
After the initialization of completion system, control module 30 can be by the resting state of I2C bus end simulation TV-set receiving module 10 so that it is export after being processed by the anolog TV signals of reception.In one embodiment of the invention, after simulated television receiver module 10 receives faint radio television signal by antenna, by tuner, radio television signal can be demodulated, amplify, be mixed and detection etc. processes, after filtering high frequency carrier component, obtain the compound composite video signal of PAL, NTSC or SECAM-system formula.Simulated television receiver module 10 can export view data and synchronizing signal by output data line to liquid crystal display device module 20 after terminating dormancy.Meanwhile, control module 30 can open logic switch 40 to transmit the data output clock signal from simulated television receiver module 10 to liquid crystal display device module 20 by CTR signal.So, simulated television receiver module 10 can data output clock signal and synchronizing signal the most effectively time directly send view data to liquid crystal display device module 20 and carry out simultaneous display.
During display, control module 30 is in background monitoring state, can instruct the such as closedown such as exit instruction, switching command or the DOL Data Output Line of high resistant simulated television receiver module 10 control line opening liquid crystal display device module 20 and NLD bus according to user operation control menu image data and/or feedback information based on user operation instruction to be exported on liquid crystal display device module 20.
Fig. 3 is the structural representation of simulated television display device in accordance with another embodiment of the present invention.In the present embodiment, simulated television receiver module 10, liquid crystal display device module 20, control module 30 and logic switch 40.Simulated television receiver module 10 also includes scale compression unit 11 and screen unit 12.Simulated television receiver module 10, liquid crystal display device module 20 and control module 30 have been described in detail with reference to Fig. 2.
Scale compression unit 11, for view data is carried out scale compression so that output image meets the resolution of liquid crystal display device module 20.The corresponding two kinds of different resolution of three standards PAL of simulated television, NTSC or SECAM, wherein NTSC corresponds to resolution 720*480, PAL and SECAM corresponds to resolution 720*576.Owing to the resolution of mobile device liquid crystal display device module 20 typically will not match, need that view data is carried out scale compression process to export an image close to liquid crystal display device module 20 resolution.Existing ATV chip internal the most all has scale compression unit 11.
Screen unit 12, for shielding row or column unnecessary in described view data so that output image meets the resolution of liquid crystal display device module 20 and/or meets the size in the region showing image on the liquid crystal display device module 20 that processing module 30 is arranged.
Control module 30 can be also used for after simulated television receiver module 10 often exports a two field picture and resets liquid crystal display device module 20 to avoid windowing phenomena before output next frame image.When simulated television receiver module 10 exports image, if the initial row starting point of image is corresponding for the initial row starting point showing the region of image with liquid crystal display device module 20, then television image is normal, otherwise there will be left and right split screen or the phenomenon of upper and lower split screen.Further, since mobile device is often with the radio-frequency antenna of the functions such as WIFI, GPS, GSM, BT, space is little and easily disturbs, and easily causes windowing phenomena.Control module 30 can be after simulated television receiver module 10 often exports a frame image data, utilizing the aperture time between frame and frame to reset display parameters to liquid crystal display device module 20, the initial row starting point that liquid crystal display device module 20 receives data returns to original value.Accordingly even when be interfered, it is also possible to recover rapidly and avoid the occurrence of windowing phenomena.
In the present embodiment, the view data that the control menu interface exported due to control module 30 and simulated television receiver module 10 export is required for being shown by liquid crystal display device module 20, therefore the output interface of simulated television receiver module 10, liquid crystal display device module 20 and control module 30 is tri-state interface, the bus of connection other module on the bus can be made to be in high-impedance state when a module uses bus.Additionally, for the control module 30 of partial liquid crystal display bus-sharing external memory interface (EMI) bus, various embodiments of the present invention can also include various Three-State (Buffer) driver such as SN74LVC244A etc. will to connect other module isolation on the bus to avoid conflict and interference when a module uses this bus.
In the course of the work, after simulated television system electrification starts, control module 30 can be at resting state by I2C bus initialization simulated television receiver module 10 and be made its control bus and data/address bus be in high-impedance state.Further, control module 30 can also be passed through CTR signal at stop logic switch 40 thus avoid simulated television receiver module 10 to transmit data output clock signal CKO to liquid crystal display device module 20.It is made normally to work it addition, control module 30 can also initialize liquid crystal display device module 20.Such as, control module 30 can arrange the display parameters of liquid crystal display device module 20 so that the initial row of image, the starting point that receive are corresponding for showing the initial row in the region of image, starting point with liquid crystal display device module 20 respectively.The most such as, control module 30 can also to show on specified liquid crystal display by the special control depositor that data/address signal nRS and data/address multiplex bus NLD are arranged in liquid crystal display device module 20 region of image.The most such as, control module 30 can also enable signal nCS by chip and enable liquid crystal display (LCD) chip.In the present embodiment, the enable foot of LCD chip is low effectively, i.e. control module 30 can enable LCD chip by the nCS signal to liquid crystal display device module 20 input low level.The most such as, control module 30 can also control the read-write capability of LCD chip by chip write signal nWR and chip read signal nRD.In the present embodiment, control module 30 can input nWR signal to liquid crystal display device module 20 and write view data to control liquid crystal display device module 20 from simulated television receiver module 10.
After the initialization of completion system, control module 30 can be by the resting state of I2C bus end simulation TV-set receiving module 10 so that simulated television receiver module 10 can export view data and synchronizing signal to liquid crystal display device module 20.Scale compression unit 11 in simulated television receiver module 10 first carries out scale compression to the view data that will export so that output image meets the resolution of liquid crystal display device module 20.Then unnecessary row or column in the view data after compression is carried out shielding processing so that output image meets the resolution of liquid crystal display device module 20 and/or meets the size in the region showing image on the liquid crystal display device module 20 that processing module 30 is arranged by screen unit 12.Meanwhile, control module 30 can open logic switch 40 to transmit the data output clock signal CKO from simulated television receiver module 10 to liquid crystal display device module 20 by CTR signal.Simulated television receiver module 10 can transmit frame synchronizing signal VSYNC and line synchronising signal HSYNC to liquid crystal display device module 20.So, simulated television receiver module 10 can be when frame synchronizing signal VSYNC and line synchronising signal HSYNC be the most effective, and each trailing edge at data output clock signal CKO passes through output data bus D [7:0] and exports the data of 8 bits.D [7:0] is the output data bus of simulated television receiver module (also referred to as ATV chip) 10, and the data fit ITU-R BT.601/656 specification in this bus, the view data of output is encoded by YUV422 or RGB565 mode.Liquid crystal display device module 20 shows according to the control of control module 30 after receiving view data.After simulated television receiver module 10 often exports a two field picture and before output next frame image, control module 30 can utilize the aperture time between frame and frame to reset the display parameters of liquid crystal display device module 20 to avoid windowing phenomena.
During display, control module 30 is in background monitoring state, can instruct the such as closedown such as exit instruction, switching command or the DOL Data Output Line of high resistant simulated television receiver module 10 control line opening liquid crystal display device module 20 and NLD bus according to user operation control menu image data and/or feedback information based on user operation instruction to be exported on liquid crystal display device module 20.
Fig. 4 is the flow chart of image data transfer method in simulated television display device according to an embodiment of the invention.In the present embodiment, the method starts from step S1.In step sl, control module 30 is at resting state by I2C bus initialization simulated television receiver module 10 and control line and the data wire of liquid crystal display is all set to high-impedance state, and additional control module 30 transmits output data clock signal to stop simulated television receiver module 10 to liquid crystal display device module 20 also by CTR signal at stop logic switch 40.
In step s 2, control module 30 shows the region of image by it to the control line of liquid crystal display device module 20 and NLD bus initialization liquid crystal display device module 20 arranging on liquid crystal display device module 20.
In step s3, control module 30 by the resting state of I2C bus end simulation TV-set receiving module 10 so that the display parameters (such as, resolution, viewing area etc.) of the process transmission standards and/or liquid crystal display device module 20 to meet data/address bus such as the simulated television video signal received to be demodulated, amplify, be mixed by output view data simulated television receiver module 10, detection, scale compression and shielding.
In step s 4, it is set to high-impedance state to control line and the NLD bus of liquid crystal display device module 20 by control module 30, and opens logic switch 40 by CTR signal so that view data is directly delivered to liquid crystal display device module 20 show by output data line from simulated television receiver module.In one embodiment of the invention, simulated television receiver module 10 sends frame synchronizing signal and line synchronising signal to liquid crystal display device module 20, and simulated television receiver module 10 the most effectively and exports view data with display effectively triggering of data output clock signal along to liquid crystal display device module 20 in frame synchronizing signal and line synchronising signal.After simulated television receiver module 10 often exports a two field picture, the method starts to be repeated up to control module 30 from step S1 and receives user operation instruction and continue at step S5.
In step s 5, control module 30 is closed according to user operation instruction or the DOL Data Output Line of high resistant simulated television receiver module 10 open oneself to control line and the NLD bus of liquid crystal display device module 20 menu image data will to be controlled and/or the feedback information that instructs based on this user operation exports on liquid crystal display device module 20.
Fig. 5 is the output timing diagram of simulated television (ATV) chip according to an embodiment of the invention.As it is shown in figure 5, the frame synchronizing signal that VSYNC is the output of ATV chip, being high effectively shown in figure, reality also can be reset to low effectively by depositor.The view data of television image one frame only exports in its effective time section.HSYNC is the line synchronising signal of ATV chip, is high effectively shown in figure, and reality also can be reset to low effectively by depositor.In television image, the view data of a line only exported within its effective time.CKO is the data output clock signal of ATV chip, and under VSYNC and HSYNC is effective, ATV chip exports the view data of 8 bits at each of which trailing edge.D [7:0] is the output data bus of ATV chip, the data fit ITU-R BT.601/656 specification in this bus, coded image data mode YUV422 of output or RGB565.
Fig. 6 is the input timing figure of liquid crystal display (LCD) driving chip according to an embodiment of the invention.As shown in Figure 6, nCS is that chip enables signal, is low effectively in this chip.RS is chip data/address signal, and high level represents that bus exports data, and what low level represented that bus exports is address.NRD is chip read signal, is used for enabling chip output function.NWR is chip write signal, is used for enabling chip input function.DB [17:0] is the data/address multiplex bus of chip, is connected with the NLD bus of control module chip.
The present invention is by increasing peripheral a small amount of logic circuit such as logic switch and by making full use of ATV chip self function such as scale compression and shielding etc., and save multimedia coprocessor (MULTIMEDIA CO-PROCESSOR), and it is not required to reserved storage space in control module chip, simplify chip structure, reduce system cost, make simulated television display device be applicable to the overwhelming majority handheld mobile device without MULTIMEDIA CO-PROCESSOR.It addition, the present invention is by processing the part signal of the control of the interior decay of simulated television chip with output ITU601 interface, it is allowed to produce the input signal being applicable to liquid crystal display, the most on a liquid crystal display output simulated television image.
Although the present invention is illustrated by specific embodiment, it will be appreciated by those skilled in the art that, without departing from the present invention, it is also possible to the present invention is carried out various conversion and equivalent substitutes.It addition, for particular condition or material, the present invention can be made various amendment, without deviating from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should include the whole embodiments fallen within the scope of the appended claims.
Claims (6)
1. a simulated television display device, it is characterised in that including:
Simulated television receiver module, for receiving anolog TV signals and by described under the control of control module
Anolog TV signals are converted to the view data that the display parameters with liquid crystal display device module match and directly lead to
Crossing output data line to send described liquid crystal display device module to and show, this output data line includes: output clock
The data wire of signal, the data wire of output frame synchronizing signal VSYNC, output line synchronising signal HSYNC
Data wire, output data bus D [7:0]；Wherein, simulated television receiver module is in frame synchronizing signal VSYNC
During with line synchronising signal HSYNC the most effectively, each trailing edge at data output clock signal passes through defeated
Go out data/address bus D [7:0] and export the data of 8 bits；
Liquid crystal display device module, for receiving described view data and data from described simulated television receiver module
Output clock signal also shows described view data according to arranging of described control module；
Control module, is connected by I2C bus with between simulated television receiver module, control module and liquid
Being connected by control line and data/address bus line between crystal display module, wherein control module is to liquid crystal
The control line of display apparatus module includes: the output data/control line of address signal nRS, pio chip
Enable the control line of signal nCS, the output control line of write signal nWR, pio chip read signal nRD
Control line；For initializing described simulated television receiver module and described liquid crystal display device module and arranging described
The display parameters of liquid crystal display device module, so that simultaneous display, are additionally operable to monitoring display process so that according to user
Operational order is closed or the DOL Data Output Line of simulated television receiver module described in high resistant open oneself to liquid crystal
Control line and the data/address bus of display apparatus module will be menu image data will to be controlled and/or based on institute
The feedback information stating user operation instruction exports on described liquid crystal display device module；Described control module is also used
Reset after often exporting a two field picture at described simulated television receiver module and before output next frame image
The display parameters of described liquid crystal display device module；
Logic switch, arranges on the data wire of output clock signal of simulated television receiver module, with control mould
Block by output CTR signal data wire connect, for from described control module receive CTR signal and
Open when described CTR signal is effective and connect from described simulated television to transmit to described liquid crystal display device module
Receive the data output clock signal of module and close when described CTR is invalid；
Wherein, described simulated television receiver module also includes:
Scale compression unit, for described view data is carried out scale compression so that output image meets described
The resolution of liquid crystal display device module；
Screen unit, for shielding row or column unnecessary in described view data so that output image meets described
For showing the region of image in the resolution of liquid crystal display device module and/or described liquid crystal display device module
Size；
Wherein, control module is at dormancy shape by I2C bus initialization simulated television receiver module
State also makes its control bus and data/address bus be in high-impedance state, and terminate mould by I2C bus
Intend the resting state of TV-set receiving module so that simulated television receiver module can be defeated to liquid crystal display device module
Go out view data and synchronizing signal；Control module passes through data/address signal nRS and data/ground
Location bus arranges the special control depositor in liquid crystal display device module and to show figure on specified liquid crystal display
The region of picture, enables signal nCS by chip and enables liquid crystal display, by chip write signal nWR and
Chip read signal nRD controls the read-write capability of liquid crystal display.
Simulated television display device the most according to claim 1, it is characterised in that described simulation electricity
It is tri-state interface depending on the output interface of receiver module, described liquid crystal display device module and described control module,
Other module being connected in described bus for the isolation when a module uses bus.
Simulated television display device the most according to claim 1, it is characterised in that described simulation electricity
It is additionally operable to send frame synchronizing signal and line synchronising signal to described liquid crystal display device module depending on receiver module, and
In described frame synchronizing signal and described line synchronising signal the most effectively and at described data output clock signal
Effectively trigger and export described view data along to described liquid crystal display device module.
4. the image data transfer method in the simulated television display device described in claim 1,
It is characterized in that, comprise the following steps:
S1, control module are at resting state by I2C bus initialization simulated television receiver module
And by CTR signal at stop logic switch；
S2, described control module by oneself to the control line of liquid crystal display device module and data/address bus
Initialize liquid crystal display device module and the display parameters of described liquid crystal display device module are set；
S3, described control module terminate the resting state of described simulated television receiver module by I2C bus
So as output view data；
S4, described control module by described oneself to the control line of liquid crystal display device module and described data/ground
Location bus is set to high-impedance state, and open described logic switch by CTR signal in case described view data from
Described simulated television receiver module is directly delivered to described liquid crystal display device module by described output data line
Upper display；
S5, described control module are closed or simulated television receiver module described in high resistant according to user operation instruction
Described in DOL Data Output Line unlatching, oneself is total to control line and the described data/address of liquid crystal display device module
Line is menu image data will to be controlled and/or the feedback information that instructs based on described user operation exports
On described liquid crystal display device module；
Wherein, in step S3, also include that described view data is carried out scale compression and shielding processing so that
Output meets the image of described liquid crystal display device module display parameters；
Wherein, in step S4, also include that described control module often exports at described simulated television receiver module
Start to repeat from described step S1 after one two field picture and before output next frame image.
Image data transfer method the most according to claim 4, it is characterised in that in step S1,
Also include control line and the output data line of simulated television receiver module described in high resistant.
Image data transfer method the most according to claim 4, it is characterised in that described picture number
According to transmittance process farther include:
S41, described simulated television receiver module send frame synchronizing signal and row to described liquid crystal display device module
Synchronizing signal；
S42, described simulated television receiver module have in described frame synchronizing signal and described line synchronising signal simultaneously
Effect and effectively triggering along described to the output of described liquid crystal display device module at described data output clock signal
View data.
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| CN201010592420.5A CN102098468B (en) | 2010-12-16 | 2010-12-16 | Simulated television display device and image data transfer method thereof |
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| KR102246099B1 (en) * | 2015-04-13 | 2021-04-29 | 삼성전자주식회사 | Image Processing System, Image Display Apparatus, Image Transmission Apparatus, Driving Method of Image Display Apparatus, and Driving Method of Image Transmission Apparatus |
| CN111696483B (en) * | 2020-07-10 | 2022-04-08 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
Citations (4)
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| CN2666056Y (en) * | 2003-07-31 | 2004-12-22 | 北京中星微电子有限公司 | Mobile telephone with TV broadcasting function |
| CN1764075A (en) * | 2004-10-23 | 2006-04-26 | 四川长虹电器股份有限公司 | Mobile communication device capable of receiving analogy television signal |
| CN101034322A (en) * | 2006-03-10 | 2007-09-12 | 凌阳科技股份有限公司 | Devices capable of displaying on screen and receiving input and rotary methods therefor |
| CN101431620A (en) * | 2007-11-06 | 2009-05-13 | 希姆通信息技术（上海）有限公司 | Signal processing method and device for analog television mobile phone |
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| JP2007088717A (en) * | 2005-09-21 | 2007-04-05 | Toshiba Corp | Information processing device and power saving control method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2666056Y (en) * | 2003-07-31 | 2004-12-22 | 北京中星微电子有限公司 | Mobile telephone with TV broadcasting function |
| CN1764075A (en) * | 2004-10-23 | 2006-04-26 | 四川长虹电器股份有限公司 | Mobile communication device capable of receiving analogy television signal |
| CN101034322A (en) * | 2006-03-10 | 2007-09-12 | 凌阳科技股份有限公司 | Devices capable of displaying on screen and receiving input and rotary methods therefor |
| CN101431620A (en) * | 2007-11-06 | 2009-05-13 | 希姆通信息技术（上海）有限公司 | Signal processing method and device for analog television mobile phone |
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