CN105185350A - Fractal scanning display control system supporting gamma correction - Google Patents
Fractal scanning display control system supporting gamma correction Download PDFInfo
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- CN105185350A CN105185350A CN201510610337.9A CN201510610337A CN105185350A CN 105185350 A CN105185350 A CN 105185350A CN 201510610337 A CN201510610337 A CN 201510610337A CN 105185350 A CN105185350 A CN 105185350A
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- 239000000969 carriers Substances 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound 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Abstract
Description
Technical field
The present invention relates to a kind of fractal scanning display control program supporting Gamma correction, comprise data processing module, fractal scanning module and store display module.The present invention is used for display system, improves its scan efficiency, and reduces system power dissipation.
Background technology
At present, Chinese patent, its patent No. is 200620122635.X " the Gamma correction device of LED display ", this device adopts and makes display system export gamma regulated value based on gamma container and gamma curve computing module, the deficiency that this device exists is: this system does not consider memory controller, view data exchange can not be carried out in real time, in addition, Chinese patent, its patent No. is 201110198522.3 " a kind of display control programs ", disclose a kind of display control program, this system and the first display, second display and at least one image output device link, the deficiency that this device exists is: this device does not consider fractal scanning system, display gray scale rank deficient, and each parts most of the time of this system is in idle condition, do not consider the Energy control management of display terminal, the energy ezpenditure of system is large, cruising time is not enough.
Summary of the invention
The object of the invention is to the defect existed for prior art, provide a kind of fractal scanning display control program supporting Gamma correction, this system can not only improve display system scan efficiency, can also reduce system power dissipation.
For achieving the above object, the technical solution used in the present invention is: a kind of fractal scanning display control program supporting Gamma correction, stores display module form by data processing module and fractal scanning model calling.It is characterized in that: data processing module is used for acquisition and processing video interface signal, by video interface through Gamma correction model calling color treatments module, and connect SRAM Read-write Catrol module composition through row data count module, the picture signal that Gamma correction module is used for video interface exports carries out Gamma correction, color data processing module carries out data processing to color of image signal, and row data count module is used for the counting to line data of going forward side by side for receiver, video interface output line synchronizing signal and field sync signal; Described fractal scanning module is made up of fractal scanning sequence generation module connected row column address generation module, fractal scanning sequence generation module produces scanning sequence and bit code sum of subspace code by state machine, and rank addresses generation module is input to the micro-display stored in display module after being used for carrying out processing generation rank addresses to the scanning sequence that fractal scanning sequence generation module exports; Store display module to be made up of data-carrier store connection micro-display, data-carrier store is used for store image information output gray level data to micro-display, and micro-display is for being shown in micro-screen by gradation data.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described video interface is for receiving image frame data, and described video interface is TV radio frequency, AV composite video, S terminal, DVI, VGA or HDMI.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described fractal scanning sequence generation module is used for producing scanning sequence and bit code sum of subspace code by state machine, be made up of through CycloneIV_EP4CE15F17C8N chip view data input, extracted be connected with IFS code sequence of extraction by deblocking, approximate invariant set in CycloneIV_EP4CE15F17C8N chip, IFS code exports and forms.Be linked in sequence by the recovery of IFS code, invariant set F grey iterative generation, image processing and tracking unit and reconstructed image data in CycloneIV_EP4CE15F17C8N chip, view data exports and forms.By described fractal scanning sequence generation module, image compression rate is high, but file size and the image pixel number after compression has nothing to do, and decompression speed is fast, effectively can improve the utilization factor of gray scale scanning, thus raising gray shade scale and image quality.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described color data processing module carries out data processing to color of image signal, connects jtag interface circuit form by data-signal through embedded microprocessor.Jtag interface circuit theory mainly directly carries out artificial debugging and real-time follow-up by jtag interface, and embedded microprocessor is that any one can process the microprocessor of reduced instruction or complicated order, single instrction or multiple instruction, single task or multitask.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described Gamma correction module carries out Gamma correction to video interface signal, be made up of memory controller connection gamma register and gamma computing module, it is characterized in that gamma register, gamma computing module and memory controller are integrated on same integrated chip, gamma register is for storing the parameter relevant to expecting gamma curve, gamma curve computing module is for generating corresponding gamma curve, emphasis of the present invention be in Gamma correction module, devise one can the memory controller of random access gamma container, this memory controller can work as input and latch signal effective time, the data of gamma register are carried out decoding, this decoding data is next expectation gamma parameter, thus the specific gamma correction parameter of random drive.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described micro-display is a kind of miniature display device, comprise silicon based LCD micro-display, silicon-based organic light-emitting micro-display, the luminous micro-display of silicon-based inorganic, the luminous micro-display of non-silicon-based, miniature CRT monitor etc., Diagonal Dimension is generally less than 3.3cm, pixel resolution is not less than 640 × 480, the gray scale of single color component is not less than 32 grades, support binocular 3D application, support brightness, contrast and color saturation adjustment, support Gamma correction, support the picture formats such as monochrome/YCbCr/RGB, support the video standards such as PAL/NTSC/SMPTE, support line by line or interlaced scan mode, support the input modes such as VGA/DVI/RGB.Support fractal scanning function, then answer integrated fractal scanning control module in described picture receiver, in order to produce fractal scanning control signal, raw more than the 256 grades gray-scale Control signals of shape drive micro-displays.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described SRAM Read-write Catrol module is to for the synchronizing signal in receiver, video interface and pixel clock signal, and by mixed valid data write SRAM memory, also for reading the effective data packets stored from SRAM Read-write Catrol module, comprise status register, control register, clock generator, control register comprises for configuring the stored configuration unit needing to store trace information processor, and control the startup of SRAM controller and the switch control unit of time-out, status register comprises for indicating the packet number status unit being stored to effective data packets number in SRAM memory.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, the scanning sequence that described rank addresses generation module is used for fractal scanning sequence generation module exports processes and produces rank addresses, comprise data register, rank addresses generator, data decoder, data register is used for storing the bit code that fractal scanning sequence generation module exports, subspace code, blanking code in sequence and last code value, rank addresses generator is for generation of the rank addresses of data, data decoder is used for carrying out decoding to rank addresses and exporting to data-carrier store.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described row data count module is used for receiver, video interface and exports line synchronizing signal and field sync signal, row synchronous counting signal is obtained and pixel address signal exports to SRAM Read-write Catrol module after process, comprise row data counter, address register, frequency divider, row data counter is used for counting the row of line synchronizing signal, address register is used for depositing the coordinate address of current pixel point, and frequency divider is used for the clock signal of carrying out needed for frequency division acquisition to clock signal of system.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described data storage controller is used for storing the color data that SRAM Read-write Catrol module exports rank addresses and the color treatments module output writing data address and the output of rank addresses generation module, and output gray level data are to micro-display 32 module, this data-carrier store can be a kind of volatile memory or volatile memory, and storage space is at least 512M.
Described a kind of support can also comprise power management module 4 in the fractal scanning display control program of Gamma correction, for cutting off the power supply of video interface 11, Gamma correction 12, row data generating module 13 and SRAM Read-write Catrol module 15 between at one's leisure.Described power management module 4 can also cut off the power supply of fractal scanning sequence generation module 21, second online data processor rank addresses generation module 22, memory RAM and micro-display when system idles.Described power management module 27 is controlled by the embedded microprocessor in color treatments module.
Described a kind of support can also comprise interruptable controller 5 for controlling interruption in the fractal scanning display control program of Gamma correction, when Gamma correction 12, row data processing module 13, color data processing module 14, SRAM Read-write Catrol module 15, fractal scanning sequence generation module 21, rank addresses generation module 22 send effective look-at-me, response made by described interruptable controller 5 in time informed embed microsever.
A kind of fractal scanning display control program supporting Gamma correction provided by the invention compared with prior art, has following outstanding substantive distinguishing features and remarkable advantage:
The present invention adopts and a kind ofly supports that Gamma correction is divided into two steps and carries out by the fractal scanning display control program of Gamma correction, overcome flat-panel monitor and show problem of dtmf distortion DTMF existing when being applicable to the video source of Traditional CRT Display figure, and the nonlinear problem of human eye brightness sensation, there is the not high problem of scan efficiency in traditional flat pannel display gray scale scanning, fractal scanning method effectively solves this problem as a kind of brand-new flat pannel display scan method, scan efficiency reaches 100%, because the system most of the time is in idle condition, pass through power management module, can cutting system idle time power supply, further reduce system power dissipation, extend cruising time.
Accompanying drawing explanation
Fig. 1 is a kind of fractal scanning display control program structural representation supporting Gamma correction in a preferred embodiment of the present invention.
Fig. 2 is a kind of fractal scanning display control program structural representation supporting Gamma correction in another preferred embodiment of the present invention.
Fig. 3 is a kind of fractal scanning display control program structural representation supporting Gamma correction in another preferred embodiment of the present invention.
Fig. 4 is the structural representation of fractal scanning sequence generation module of the present invention.
Embodiment
Be further described below in conjunction with the technical scheme of accompanying drawing to preferred embodiment of the present invention:
Embodiment one:
With reference to figure 1, a kind of in a preferred embodiment of the present invention supports the fractal scanning display control program of Gamma correction: to be connected with fractal scanning module (2) by data processing module (1) and to store display module (3) and form.It is characterized in that: data processing module (1) is for acquisition and processing video interface signal, color treatments module (14) is connected through Gamma correction module (12) by video interface (11), and connect SRAM Read-write Catrol module (15) formation through row data count module (13), Gamma correction module (12) carries out Gamma correction for the picture signal exported video interface, color data processing module (14) carries out data processing to color of image signal, row data count module (13) is for the counting to line data of going forward side by side for receiver, video interface output line synchronizing signal and field sync signal, described fractal scanning module (2) is made up of fractal scanning sequence generation module (21) connected row column address generation module (22), fractal scanning sequence generation module (21) produces scanning sequence and bit code sum of subspace code by state machine, and rank addresses generation module 22 is input to the micro-display (32) stored in display module (3) after carrying out processing generation rank addresses for the scanning sequence exported fractal scanning sequence generation module (22), storage display module (3) connects micro-display (32) by data-carrier store (31) and forms, data-carrier store (31) is for store image information output gray level data to micro-display (32), and micro-display (32) is for being shown in micro-screen by gradation data.
Embodiment two:
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described Gamma correction module (12) carries out Gamma correction to video interface signal, be made up of memory controller (121) connection gamma register (122) and gamma computing module (123), it is characterized in that gamma register, gamma computing module and memory controller are integrated on same integrated chip, gamma register is for storing the parameter relevant to expecting gamma curve, gamma curve computing module is for generating corresponding gamma curve, emphasis of the present invention be in Gamma correction module, devise one can the memory controller of random access gamma container, this memory controller can work as input and latch signal effective time, the data of gamma register are carried out decoding, this decoding data is next expectation gamma parameter, thus the specific gamma correction parameter of random drive.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described rank addresses generation module (22) processes for the scanning sequence exported fractal scanning sequence generation module (21) and produces rank addresses, comprise data register, rank addresses generator, data decoder, data register is used for storing the bit code that fractal scanning sequence generation module exports, subspace code, blanking code in sequence and last code value, rank addresses generator is for generation of the rank addresses of data, data decoder is used for carrying out decoding to rank addresses and exporting to data-carrier store.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described SRAM Read-write Catrol module (15) is to for the synchronizing signal in receiver, video interface and pixel clock signal, and by mixed valid data write SRAM memory, also for reading the effective data packets stored from SRAM Read-write Catrol module, comprise status register, control register, clock generator, control register comprises for configuring the stored configuration unit needing to store trace information processor, and control the startup of SRAM controller and the switch control unit of time-out, status register comprises for indicating the packet number status unit being stored to effective data packets number in SRAM memory.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described micro-display (32) is a kind of miniature display device, comprise silicon based LCD micro-display, silicon-based organic light-emitting micro-display, the luminous micro-display of silicon-based inorganic, the luminous micro-display of non-silicon-based, miniature CRT monitor etc., Diagonal Dimension is generally less than 3.3cm, pixel resolution is not less than 640 × 480, the gray scale of single color component is not less than 32 grades, support binocular 3D application, support brightness, contrast and color saturation adjustment, support Gamma correction, support the picture formats such as monochrome/YCbCr/RGB, support the video standards such as PAL/NTSC/SMPTE, support line by line or interlaced scan mode, support the input modes such as VGA/DVI/RGB.Support fractal scanning function, then answer integrated fractal scanning control module in described picture receiver, in order to produce fractal scanning control signal, raw more than the 256 grades gray-scale Control signals of shape drive micro-displays.
Above-mentioned a kind ofly support in the fractal scanning display control program of Gamma correction, described color data processing module (14) carries out data processing to color of image signal, connects jtag interface circuit form by data-signal through embedded microprocessor.Jtag interface circuit theory mainly directly carries out artificial debugging and real-time follow-up by jtag interface, and embedded microprocessor is that any one can process the microprocessor of reduced instruction or complicated order, single instrction or multiple instruction, single task or multitask.
Embodiment three:
The present embodiment is substantially identical with embodiment one, and special feature is as follows:
With reference to figure 2, a kind of described in the present embodiment supports that the fractal scanning display control program of Gamma correction also comprises power management module (4), for cutting off the power supply of video interface 11, Gamma correction 12, row data generating module 13 and SRAM Read-write Catrol module 15 between at one's leisure.Described power management module 4 can also cut off the power supply of fractal scanning sequence generation module 21, second online data processor rank addresses generation module 22, memory RAM and micro-display when system idles.Described power management module 27 is controlled by the embedded microprocessor in color treatments module.
Embodiment four:
The present embodiment is substantially identical with embodiment one, and special feature is as follows:
With reference to figure 3, a kind of described in the present embodiment supports that the fractal scanning display control program of Gamma correction also comprises interruptable controller 5 and interrupts for controlling, when Gamma correction 12, row data processing module 13, color data processing module 14, SRAM Read-write Catrol module 15, fractal scanning sequence generation module 21, rank addresses generation module 22 send effective look-at-me, response made by described interruptable controller 5 in time informed embed microsever.
Claims (12)
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Application publication date: 20151223 |