WO2012006797A1 - 一种彩色lcos显示芯片及其驱动控制方法 - Google Patents
一种彩色lcos显示芯片及其驱动控制方法 Download PDFInfo
- Publication number
- WO2012006797A1 WO2012006797A1 PCT/CN2010/075986 CN2010075986W WO2012006797A1 WO 2012006797 A1 WO2012006797 A1 WO 2012006797A1 CN 2010075986 W CN2010075986 W CN 2010075986W WO 2012006797 A1 WO2012006797 A1 WO 2012006797A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- line
- rgb
- serial
- data
- column
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000004973 liquid crystal related substance Substances 0.000 title abstract description 6
- 229910052710 silicon Inorganic materials 0.000 title abstract description 3
- 239000010703 silicon Substances 0.000 title abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title abstract 2
- 238000012937 correction Methods 0.000 claims abstract description 42
- 230000001360 synchronised effect Effects 0.000 claims description 98
- 238000012546 transfer Methods 0.000 claims description 10
- 230000003213 activating effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0235—Field-sequential colour display
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
- G09G2370/08—Details of image data interface between the display device controller and the data line driver circuit
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/006—Details of the interface to the display terminal
- G09G5/008—Clock recovery
Definitions
- the invention relates to a display chip, in particular to a color LCOS (Liquid Crystal On Silicon) display chip and a driving control method thereof.
- LCOS Liquid Crystal On Silicon
- the display driving circuit of the existing color LCOS display adopts an IC (Integrated Circuit) chip of various types of functions, mainly including an image decoding chip, a display driving signal control chip, and a configuration.
- IC Integrated Circuit
- the single chip chip, the display driver amplifier op amp module, the multi-power module and the passive configuration electronic components, etc., the circuit structure of the chips is relatively complicated, thereby causing the whole machine cost is too high, the whole machine power consumption is high and the whole machine space The size is large; and, when the video signal nonlinear correction chip and the display drive signal control chip are used, the power consumption of the whole machine is also increased.
- the present invention provides a color
- a color LCOS display chip comprising: a 0V power supply finishing circuit and a ground pad connected to the 0V power supply finishing circuit, RGBCRed-Green-Blue, red-green-blue) input register And an RGB data input pad connected to the RGB input register, a nonlinear correction table code finder, a decoder, a multipotential generator, and a reference potential pad connected to the multipotential generator, serial a two-wire circuit and a serial line pad connected to the serial two-wire circuit, a clock buffer, and an RGB clock pad connected to the clock buffer, an RGB synchronous clock generator, a line synchronous clock generator, a field a synchronous clock generator, a charge pump, a 3.3V power supply circuit, and a 3.3V power pad, a state machine scheduler, and an RGB display execution circuit connected to the 3.3V power supply circuit;
- the clock buffer, the RGB synchronous clock generator, the line synchronous clock generator, the field synchronous clock generator, the charge pump, the 3.3V power supply sorting circuit, and the state machine scheduler And the RGB display execution circuit is connected;
- the 3.3V power supply finishing circuit is respectively connected to the RGB input register, the nonlinear correction table code finder, the decoder, and the 3.3V power supply line a multi-potential generator, the serial two-wire circuit, the clock buffer, the RGB sync a clock generator, the line sync clock generator, the field sync clock generator, the charge pump, the state machine scheduler, and the RGB display execution circuit are connected;
- the charge pump is respectively passed through a 15V power line Connected to the multi-potential generator, the RGB display execution circuit;
- the state machine scheduler outputs data to the
- the RGB display execution circuit comprises: an RGB display pixel array circuit, a column RGB serial shift register, a column RGB two-stage parallel reset register, a column RGB parallel reset level shifter, a column RGB parallel reset digital-to-analog converter, Serial row shift register, parallel row reset level shifter, and parallel row signal output driver;
- the column RGB serial shift register, the column RGB two-stage parallel reset register, the serial row shift register are respectively connected to the 0V power line and the 3.3V power line;
- the RGB parallel a reset level shifter, the column RGB parallel reset digital-to-analog converter, the parallel row reset level shifter, and the parallel row signal output driver are respectively connected to the 0V power line and the 15V power line,
- the column RGB serial shift register receives data from the line clock line, the RGB synchronous clock line, and simultaneously transmits data through the column serial shift bus Go to the column RGB two-stage parallel reset register;
- the column RGB two-stage parallel reset register receives data transmitted from the RGB corrected display data line, and simultaneously transfers data to the port through the column register bus RGB parallel reset level shifter;
- the RGB parallel reset level shifter transmits data to the column RGB parallel reset digital-to-analog converter through a column control bus, the column RGB parallel reset digital-to-analog converter passes RGB analog number An
- the RGB display pixel array circuit comprises: RGB cells having a number of rows of not less than 2 rows, a column number of not less than 2 columns, a total number of not less than 2x2, and no more than 2 parallel digital addressing
- the digital address bus composed of lines and each group of the RGB analog data output bus composed of one R analog signal line, one G analog signal line, and one B analog signal line and not less than two groups
- the RGB unit is respectively connected to the digital addressing line, the R analog signal line, the G analog signal line, the B analog signal line, and the 15V power line.
- the RGB unit includes: a reflected red R (Red) electrode, a reflected green G (Green) electrode, a reflected blue B (Blue) electrode, and a connection to the reflection through an R electrode connection a red light R electrode connected to the reflective green light G electrode through a G electrode wire, connected to the reflected blue light B electrode through a B electrode wire, and respectively connected to the R analog signal line and the G analog signal line
- the addressing unit circuit includes: an addressing PMOS source, an addressing PMOS gate, an addressing PMOS drain electrode, an addressing PMOS transistor formed by addressing the PMOS back electrode, and a storage PMOS source, a storage PMOS gate, and a memory.
- a storage PMOS transistor formed by a PMOS drain and a storage PMOS back electrode, the address PMOS gate being connected to the digital addressing line, the addressed PMOS back electrode, the storage PMOS source, and the storage PMOS drain a pole and the storage PMOS back electrode are respectively connected to the 15V power line;
- the address PMOS source is connected to an analog signal input line, and the address PMOS drain electrode and the storage PMOS gate are respectively connected to an electrode output line.
- the electrode output line is connected to the R electrode connection; when the analog signal input line is connected to the G analog signal line, the electrode output line Connected to the G electrode connection; when the analog signal input line is connected to the B analog signal line, the electrode output line is connected to the B electrode connection.
- a driving control method for a color LCOS display chip comprising the steps of:
- the state machine scheduler starts the charge pump to output 15V voltage to the 15V power line, starts the 0V power supply finishing circuit, outputs 0V voltage to the 0V power line, starts the 3.3V power supply finishing circuit, outputs 3.3V voltage to the 3.3V power line, and starts.
- the clock buffer outputs a clock signal to the clock line, and the multi-potential generator is started to output a reference reference to the multi-potential reference power line. a potential, start serial two-wire circuit that receives data input from the serial line pad;
- the serial two-wire circuit determines whether the read addressing code is consistent with the address code of the chip, and if yes, the matching is valid, performing step (5), if not, the matching is invalid, and the step is re-executed (3) );
- the state machine scheduler starts the RGB input register to read the RGB video data from the RGB data input pad, starts the non-linear correction table code finder, transmits the RGB correction data to the RGB correction display data line, and starts the decoder. And inputting a voltage code value to the decoder, starting an RGB synchronous clock generator output RGB synchronous clock, starting a line synchronous clock generator output line synchronous clock, and starting a field synchronous clock generator output field synchronous clock;
- step (9) determining whether the serial line shift register reads a falling edge of the field synchronous clock during reading of a high level of the line synchronous clock, and if so, using the line synchronous clock as a period
- the first row of digital addressing lines begins to output pulses line by line until the synchronization is again valid; if not, step (7) is re-executed, and the serial line shift register continues to read in the field synchronization clock;
- step (10) determining whether the column RGB serial shift register reads a falling edge of the line synchronous clock during reading of a high level of the RGB synchronous clock, and if so, using the RGB synchronous clock as a period
- the analog signal is output column by column from the first column of RGB analog signal lines until the synchronization is valid again; if not, step (8) is re-executed, and the column RGB serial shift register reads the line synchronization clock.
- the color LCOS display chip and the driving control method provided by the invention eliminate the high-cost special chip such as the video signal nonlinear correction chip and the display driving signal control chip used in the conventional control driving circuit; on the other hand, on a chip Multi-system integration is completed, saving the PCB board required by the multi-system chip combination, thereby greatly saving production cost; and reducing the weight and space volume of the control driving circuit due to the reduction in the number of integrated circuit chips and the saving of the PCB board And avoiding the use of nonlinear correction chip, display drive signal control chip to reduce the power consumption of the whole machine; due to the use of the state machine scheduler as the core for the digital signal processing module, this can be based on the nonlinear characteristics of all liquid crystal materials
- the versatility of the chip is enhanced by appropriately modifying the voltage code value to obtain the optimal nonlinear correction performance.
- FIG. 1 is a block diagram showing the structure of a color LCOS display chip provided by the present invention
- RGB display execution circuit provided by the present invention
- RGB display pixel array circuit provided by the present invention
- RGB unit 4 is a structural block diagram of an RGB unit provided by the present invention.
- FIG. 5 is a structural block diagram of an addressing unit circuit provided by the present invention.
- Figure 6 is a flow chart of a drive control method provided by the present invention.
- the present invention provides a color LCOS display chip.
- the color LCOS display chip includes: 0V power supply finishing circuit 1 And a ground pad 15 connected to the 0V power supply circuit 1, an RGB input register 2, and an RGB data input pad 16 connected to the RGB input register 2, a nonlinear correction table code finder 3, and a decoder 4.
- 0V power supply circuit 1 through 0V power line 35 and RGB input register 2, nonlinear correction table code finder 3, decoder 4, multipotential generator 5, serial two-wire circuit 6, clock buffer 7 , RGB synchronous clock generator 8, line synchronous clock generator 9, field synchronous clock generator 10, charge pump 11, 3.3V power supply finishing circuit 12, state machine scheduler 13 and RGB display execution circuit 14 are connected; 3.3V power supply
- the sorting circuit 12 passes through the 3.3V power line 36 and the RGB input register 2, the nonlinear correction table code finder 3, the decoder 4, the multipotential generator 5, the serial two-wire circuit 6, and the clock buffer 7, respectively.
- the RGB synchronous clock generator 8, the line synchronous clock generator 9, the field synchronous clock generator 10, the charge pump 11, the state machine scheduler 13, and the RGB display execution circuit 14 are connected; the charge pump 11 is connected to the 15V power supply line 34, respectively.
- the potential generator 5 and the RGB display execution circuit 14 are connected; the state machine scheduler 13 outputs data to the RGB input register 2 through the video input state control line 2, and outputs data to the nonlinear correction table through the lookup table status line 25, respectively.
- Code finder 3. Output data to the decoder 4 through the decoder status line 26, output or receive data from the serial two-wire circuit 6 through the serial status line 28, and receive data output from the RGB synchronous clock generator 8 through the RGB sync line 30.
- the RGB display execution circuit 14 is effective by the row drive active line 37 and the column drive, respectively.
- Line 38 receives the data output from the state machine scheduler 13, receives the data output from the line sync clock generator 9 through the line clock line 22, receives the data output from the RGB sync clock generator 8 through the RGB sync clock line 23, and passes RGB.
- the corrected display data line 24 receives the data output from the nonlinear correction table code finder 3, is connected to the multi-potential generator 5 through the multi-potential reference power supply line 27, and receives the output from the field-synchronized clock generator 10 through the field clock line 33.
- the RGB display execution circuit 14 includes an RGB display pixel array circuit 51, a column RGB serial shift register 52, a column RGB two-stage parallel reset register 53, and a column RGB parallel reset level shifter. 54, column RGB parallel reset digital-to-analog converter 55, serial row shift register 56, parallel row reset level shifter 57 and parallel row signal output driver 58;
- the column RGB serial shift register 52, the column RGB two-stage parallel reset register 53, and the serial row shift register 56 are respectively connected to the 0V power line 35 and the 3.3V power line 36; the RGB parallel reset level shifter 54, The column RGB parallel reset digital-to-analog converter 55, the parallel row reset level shifter 57, and the parallel row signal output driver 58 are connected to the 0V power supply line 35 and the 15V power supply line 34, respectively, and the RGB display pixel array circuit 51 and the 15V power supply line 34 are connected.
- the column RGB serial shift register 52 receives data transmitted from the row clock line 22, the column drive active line 37, and the RGB synchronous clock line 23, and simultaneously transfers data to the column RGB two-stage through the column serial shift bus 61.
- column RGB two-stage parallel reset register 53 receives data from RGB corrected display data line 24, and simultaneously transfers data to column RGB parallel reset level shift through column register bus 62
- the column RGB parallel reset level shifter 54 transmits data to the column RGB parallel reset digital-to-analog converter 55 through the column control bus 63, and the column RGB parallel reset digital-to-analog converter 55 passes the RGB mode.
- the data output bus 64 transfers the data to the RGB display pixel array circuit 51; the column RGB parallel reset digital-to-analog converter 55 is connected to the multi-potential reference power supply line 27; the serial line shift register 56 receives the slave line clock line 22, and the row drive is effective.
- the data is transferred to the parallel line signal output driver 58, and the parallel line signal output driver 58 transmits the data to the RGB display pixel array circuit 51 via the digital address bus 67.
- the RGB display pixel array circuit 51 includes: RGB cells 72 having a number of rows of not less than 2 rows, a column number of not less than 2 columns, a total number of not less than 2x2, and not less than A digital addressing bus 67 consisting of two parallel digital addressing lines 71 and each group consisting of an R analog signal line 73, a G analog signal line 74, and a B analog signal line 75
- RGB analog data output bus 64 formed by the two groups, the digital address line 71 and the R analog signal line 73, the G analog signal line 74, and the B analog signal line 75
- the RGB unit 72 is connected to the digital homing
- the RGB unit 72 includes: a reflected red light R electrode 76, a reflected green light G electrode 77, a reflected blue light B electrode 78, and connected to the reflected red light R electrode 76 through the R electrode connection 79, through the G electrode.
- the connection 80 is connected to the reflected green G electrode 77
- the B electrode connection 81 is connected to the reflected blue B electrode 78
- the total is connected to the R analog signal line 73, the G analog signal line 74, and the B analog signal line 75, respectively.
- the address unit circuit 82 is connected to the 15V power supply line 34 and the digital address line 71, respectively, and the reflected red light R electrode 76, the reflected green light G electrode 77, and the reflected blue light B electrode 78 are insulated from each other.
- the address unit circuit 82 includes: an address PMOS transistor 91 composed of an address PMOS source 95, an address PMOS gate 96, an address PMOS drain electrode 97, and an address PMOS back electrode, and A memory PMOS transistor 92 is formed which stores a PMOS source 86, a storage PMOS gate 83, a storage PMOS drain 84 and a storage PMOS back electrode 85.
- the address PMOS gate 96 is connected to the digital addressing line 71 to address the PMOS back electrode 98.
- the storage PMOS source 86, the storage PMOS drain 84 and the storage PMOS back electrode 85 are respectively connected to the 15V power supply line 34; the address PMOS source 95 is connected to the analog signal input line 93, the address PMOS drain electrode 97 and the storage PMOS gate The poles 83 are connected to the electrode output lines 94, respectively.
- the electrode output line 94 is connected to the R electrode line 79; when the analog signal input line 93 is connected to the G analog signal line 74, the electrode output line 94 is connected to the G The electrode connection line 80; when the analog signal input line 93 is connected to the B analog signal line 75, the electrode output line 94 is connected to the B electrode connection line 81.
- the embodiment of the present invention provides a color LCOS display chip.
- the video signal nonlinear correction chip used in the conventional control driving circuit and the display driving signal control are discarded.
- High-cost dedicated chip such as chip; on the other hand, multi-system integration is completed on one chip, which saves PCB board required by multi-system chip combination, thereby greatly saving production cost; and due to the reduction of the number of integrated circuit chips and PCB
- the board saves the weight and space volume of the control drive circuit; and the power consumption of the whole machine is reduced by avoiding the use of the nonlinear correction chip and the display drive signal control chip; the digital signal processing is adopted as the core of the state machine scheduler
- the module in this way, according to the nonlinear characteristics of all liquid crystal materials, the voltage coding value is appropriately modified to obtain the optimal nonlinear correction performance, thereby enhancing the versatility of the chip.
- the state machine scheduler 13 When the ground pad 15 is turned on, the 3.3V power supply pad 20 is turned on by the 3.3V power supply, and the reference potential pad 17 is turned on the reference power supply, that is, after the color LCOS display chip is powered on, the state machine scheduler 13 is started first. Then, the state machine scheduler 13 starts the charge pump 11 to output 15V voltage to the 15V power line 34, starts the 0V power supply sorting circuit 1 to output 0V voltage to the 0V power supply line 35, and starts the 3.3V power supply sorting circuit 12 to output to the 3.3V power supply line 36.
- the startup clock buffer 7 outputs a clock signal to the clock line 29, activates the multi-potential generator 5 to output the reference reference potential to the multi-potential reference power supply line 27, and activates the serial two-wire circuit 6 to follow the I 2 C communication protocol.
- Serial line pad 18 inputs data. After the serial two-wire circuit 6 starts operating, the internal register starting with the addressing code is first read from the serial line pad 18.
- the read addressing code is consistent with the address code of the chip, and if so, continuing to receive the data input from the serial line pad 18, and writing the valid signal back to the state scheduler 13, a circuit that causes it to be connected to the state scheduler 13; if not, the internal register configuration word beginning with the addressing code is read back from the serial line pad 18 until a valid signal occurs; the state machine scheduler 13 slave serial state After the line 28 reads the valid signal, the RGB input register 2 is started to read the RGB video data from the RGB data input pad 16, and the non-linear correction table code finder 3 is started to transmit the RGB correction data to the RGB correction display data line to start decoding.
- the controller 4 inputs the voltage code value to the decoder 4, so that the decoder 4 outputs the decode selection data to the decode output line 38, activates the RGB sync clock generator 8 to output the RGB sync clock, and starts the line sync clock generator 9 output.
- the line sync clock, the start field sync clock generator 10 outputs the field sync clock, and the serial line shift register 56 is started to read the line sync clock and the field sync clock, and the RGB serial shift register is started.
- the device 52 reads in the RGB synchronous clock and the line synchronous clock; the serial line shift register 56 reads the line synchronous clock and the field synchronous clock to determine whether the falling edge of the field synchronous clock is read during reading of the line synchronous clock high level, and if so, Then, the pulse is outputted row by row from the first row of digital addressing lines in a row synchronous clock cycle until the synchronization is valid again; if not, the serial row shift register 56 continues to read the new field synchronous clock; RGB serial shift The register 52 reads the RGB synchronous clock and the line synchronous clock to determine whether the falling edge of the line synchronous clock is read during the reading of the RGB synchronous clock high level, and if so, the RGB synchronous signal line from the first column of the RGB analog signal line.
- the analog signal is outputted column by column, and the input is started from the first column of RGB analog signal lines until the synchronization is valid again.
- Not less than 2 digital address lines receive an address pulse in sequence during a field sync clock cycle, and the interval time of each address pulse is equal to the line sync clock period; not less than 2 groups in one line clock period
- the RGB analog signal lines sequentially transmit a set of RGB analog signals, and the interval time of each group of RGB analog signals is equal to the RGB synchronous clock period.
- the addressing PMOS gate 96 of the addressing PMOS transistor 91 controls the addressing PMOS source 95 to communicate with the addressed PMOS drain 97, and the analog signal on the analog signal line 93 is directly transmitted to
- the storage PMOS gate 83 of the storage PMOS transistor 92 is stored, and an electric field is applied to the reflected red R electrode 76 (or the reflected green G electrode 77 or the reflected blue B electrode 78) through the electrode output line 94;
- the address PMOS gate 96 of the address PMOS transistor 91 controls the address PMOS source 95 to be disconnected from the address PMOS drain, and the charge stored in the memory PMOS gate 83 of the memory PMOS transistor 92 is maintained. Any interference continues to exert an electric field effect on the reflected red R electrode 76 (or the reflected green G electrode 77 or the reflected blue B electrode 78) through the electrode output line 94.
- Embodiment 2 In order to reduce the overall machine cost, reduce the power consumption of the whole machine, and reduce the size of the whole machine space, the present invention provides a driving control method for a color LCOS display chip. Referring to FIG. 6, the method includes the following steps:
- the ground pad 15 is turned on the ground, while the 3.3V power pad 20 is turned on the 3.3V power supply, and the reference potential pad 17 is turned on the reference power, the state machine scheduler 13 is started;
- the state machine scheduler 13 starts the charge pump 11 to output 15V voltage to the 15V power supply line 34, starts the 0V power supply sorting circuit 1 and outputs 0V voltage to the 0V power supply line 35, and starts the 3.3V power supply sorting circuit 12 to output 3.3 to the 3.3V power supply line 36.
- Serial two-wire circuit 6 reads in the internal register configuration word starting with the addressing code from the serial line pad 18;
- Serial two-wire circuit 6 determines whether the read addressing code is consistent with the address code of the chip, if yes, the match is valid, step 105 is performed, if not, the match is invalid, and step 103 is re-executed;
- the state machine scheduler 13 starts the RGB input register 2 to read the RGB video data from the RGB data input pad 16, and starts the non-linear correction table.
- the code finder 3 transmits the RGB correction data to the RGB corrected display data line, and starts decoding.
- the purpose of the state machine scheduler 13 initiating the decoder 4 and inputting the voltage coded value to the decoder 4 is to cause the decoder 4 to output the decoded selection data to the decode output line 40.
- Start serial line shift register 56 reads in line sync clock and field sync clock;
- step 106, step 107 and step 108 are performed simultaneously.
- Step 110 Determine whether the column RGB serial shift register 52 reads the falling edge of the line synchronous clock during reading the high level of the RGB synchronous clock, and if so, starts from the first column of the RGB analog signal line with the RGB synchronous clock as a cycle. The analog signal is output column by column until the synchronization is valid again; if not, step 108 is re-executed, and the column RGB serial shift register 52 reads the line synchronization clock.
- the embodiments of the present invention provide a driving control method for a color LCOS display chip.
- the overall machine cost is reduced, the power consumption of the whole machine is reduced, and the size of the whole machine space is reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/320,544 US20130100180A1 (en) | 2010-07-13 | 2010-08-13 | Color lcos display chip and control method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010224999.XA CN101916553B (zh) | 2010-07-13 | 2010-07-13 | 一种彩色lcos显示芯片及其驱动控制方法 |
CN201010224999.X | 2010-07-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012006797A1 true WO2012006797A1 (zh) | 2012-01-19 |
Family
ID=43324048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2010/075986 WO2012006797A1 (zh) | 2010-07-13 | 2010-08-13 | 一种彩色lcos显示芯片及其驱动控制方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20130100180A1 (zh) |
CN (1) | CN101916553B (zh) |
WO (1) | WO2012006797A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115003020A (zh) * | 2021-09-30 | 2022-09-02 | 荣耀终端有限公司 | 一种电路板及电子设备 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109270393B (zh) * | 2018-10-10 | 2024-04-05 | 国网宁夏电力有限公司固原供电公司 | 一种单脉冲校线仪 |
CN109410830A (zh) * | 2018-12-21 | 2019-03-01 | 深圳市羽微电子有限公司 | 一种led显示屏驱动电路 |
CN109830204B (zh) * | 2019-03-25 | 2022-08-09 | 京东方科技集团股份有限公司 | 一种时序控制器、显示驱动方法、显示装置 |
CN113223444B (zh) * | 2020-01-17 | 2022-03-11 | 厦门凌阳华芯科技有限公司 | 一种单像素led驱动芯片及led显示屏 |
CN114995943B (zh) * | 2022-08-01 | 2022-09-30 | 北京数字光芯集成电路设计有限公司 | 应用于微显示系统的初始化配置方法及微显示系统 |
CN116863878B (zh) * | 2023-09-05 | 2023-12-08 | 中科(深圳)无线半导体有限公司 | 一种mini LED系统双线传输方法及其实现芯片结构 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060132066A1 (en) * | 2004-12-20 | 2006-06-22 | Paul Winer | Synchronization of lamp stabilizing pulses with frame rates of PWM LCOS devices |
CN1862322A (zh) * | 2005-05-11 | 2006-11-15 | 上海华园微电子技术有限公司 | Lcos显示芯片的测试电路 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4221183B2 (ja) * | 2002-02-19 | 2009-02-12 | 株式会社日立製作所 | 液晶表示装置 |
JP3970110B2 (ja) * | 2002-06-27 | 2007-09-05 | カシオ計算機株式会社 | 電流駆動装置及びその駆動方法並びに電流駆動装置を用いた表示装置 |
CN1770248A (zh) * | 2004-11-03 | 2006-05-10 | 上海华园微电子技术有限公司 | 基于大规模集成电路上的反射液晶投影中显示驱动电路 |
US20100066767A1 (en) * | 2005-12-27 | 2010-03-18 | Himax Display, Inc. | Lcos integrated circuit and electronic device using the same |
TWI325130B (en) * | 2006-01-12 | 2010-05-21 | Himax Display Inc | Led current driving system for lcos display |
US7782027B2 (en) * | 2006-12-30 | 2010-08-24 | Advanced Analogic Technologies, Inc. | High-efficiency DC/DC voltage converter including down inductive switching pre-regulator and capacitive switching post-converter |
US20080266469A1 (en) * | 2007-04-26 | 2008-10-30 | Himax Technologies Limited | Liquiid crystal on silicon (lcos) display and package thereof |
KR101554685B1 (ko) * | 2007-12-20 | 2015-09-21 | 에이티아이 테크놀로지스 유엘씨 | 비디오 프로세싱을 기술하기 위한 방법, 장치 및 머신 판독가능 매체 |
-
2010
- 2010-07-13 CN CN201010224999.XA patent/CN101916553B/zh not_active Expired - Fee Related
- 2010-08-13 US US13/320,544 patent/US20130100180A1/en not_active Abandoned
- 2010-08-13 WO PCT/CN2010/075986 patent/WO2012006797A1/zh active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060132066A1 (en) * | 2004-12-20 | 2006-06-22 | Paul Winer | Synchronization of lamp stabilizing pulses with frame rates of PWM LCOS devices |
CN1862322A (zh) * | 2005-05-11 | 2006-11-15 | 上海华园微电子技术有限公司 | Lcos显示芯片的测试电路 |
Non-Patent Citations (1)
Title |
---|
LIU, YANYAN ET AL.: "Circuit Design of Single Panel Color LCOS Micro-display Chip", ADVANCED DISPLAY, March 2006 (2006-03-01), pages 55 - 58 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115003020A (zh) * | 2021-09-30 | 2022-09-02 | 荣耀终端有限公司 | 一种电路板及电子设备 |
Also Published As
Publication number | Publication date |
---|---|
CN101916553B (zh) | 2012-03-07 |
CN101916553A (zh) | 2010-12-15 |
US20130100180A1 (en) | 2013-04-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2012006797A1 (zh) | 一种彩色lcos显示芯片及其驱动控制方法 | |
US10699645B2 (en) | Simplified gate driver configuration and display device including the same | |
US8619009B2 (en) | Display control drive device and display system | |
RU2447517C1 (ru) | Устройство отображения и мобильный терминал | |
TWI412015B (zh) | 用於一液晶顯示器之閘極驅動器及驅動方法 | |
CN103871381B (zh) | 时序控制器及其驱动方法和使用该控制器的液晶显示装置 | |
JP2011039205A (ja) | タイミングコントローラ、画像表示装置及びリセット信号出力方法 | |
US20130050159A1 (en) | Gate driver and display device therewith | |
US20170243531A1 (en) | Display device, driving method thereof, and image display system | |
KR20130055253A (ko) | 주사 구동 장치 및 그 구동 방법 | |
JP2015094806A (ja) | 表示ドライバ、表示システム、及びマイクロコンピュータ | |
WO2012172976A1 (ja) | 半導体集積装置、表示装置、および半導体集積装置のデバッグ方法 | |
JP2010190932A (ja) | 表示装置および駆動装置 | |
KR20130009496A (ko) | 표시장치와 그 구동 방법 | |
JP2008129557A (ja) | 表示制御用半導体集積回路 | |
KR20010039730A (ko) | 표시용 드라이버 ic 및 이를 사용한 전자기기 | |
TW200844942A (en) | Method and apparatus to generate control signals for display-panel driver | |
KR20140082488A (ko) | 액정표시장치 및 그 구동방법 | |
WO2022193683A1 (zh) | 触控显示驱动装置、方法及触控显示装置 | |
WO2020258392A1 (zh) | 主动式矩阵显示装置和驱动电路板组件 | |
TWI478131B (zh) | 源極驅動器與顯示裝置 | |
CN101388195A (zh) | 色序式液晶显示设备的控制芯片 | |
JP5239177B2 (ja) | 表示駆動装置及びそれを備えた表示装置 | |
US20230215338A1 (en) | Data transmission/reception circuit and display device including the same | |
TW201314646A (zh) | 閘極驅動器及具有該閘極驅動器之顯示裝置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 13320544 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10854589 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 26/06/13) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 10854589 Country of ref document: EP Kind code of ref document: A1 |