CN108711403A - display driver and semiconductor device - Google Patents

display driver and semiconductor device Download PDF

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Publication number
CN108711403A
CN108711403A CN201711103964.9A CN201711103964A CN108711403A CN 108711403 A CN108711403 A CN 108711403A CN 201711103964 A CN201711103964 A CN 201711103964A CN 108711403 A CN108711403 A CN 108711403A
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CN
China
Prior art keywords
display
data
correction data
grayscale voltage
gamma correction
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Granted
Application number
CN201711103964.9A
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Chinese (zh)
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CN108711403B (en
Inventor
山崎厚司
平间厚志
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Lapis Semiconductor Co Ltd
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Lapis Semiconductor Co Ltd
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Priority claimed from JP2016219527A external-priority patent/JP6817789B2/en
Application filed by Lapis Semiconductor Co Ltd filed Critical Lapis Semiconductor Co Ltd
Publication of CN108711403A publication Critical patent/CN108711403A/en
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Publication of CN108711403B publication Critical patent/CN108711403B/en
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    • 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
    • G09G3/3696—Generation of voltages supplied to electrode 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3266—Details of drivers for scan electrodes
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3275—Details of drivers for data electrodes
    • G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
    • 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
    • G09G3/3674—Details of drivers for scan electrodes
    • 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
    • G09G3/3685—Details of drivers for data electrodes
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The present invention relates to display driver and semiconductor devices.It is designed to provide that it is possible to realize the display driver changed on a small scale and the semiconductor devices for being formed with the display driver.The gamma correction data unloading part for singly sending out multiple gamma correction data pieces according to each specified time limit is provided in display driver, and, according to the gamma characteristic based on the gamma correction data piece sent out from the gamma correction data unloading part, the intensity level indicated by vision signal is transformed to grayscale voltage.

Description

Display driver and semiconductor device
Technical field
The present invention relates to the display driver driven to display panel and it is formed with partly leading for the display driver Body device.
Background technology
The display driver that the display panels such as liquid crystal display panel or organic EL display panel are driven generate with by The corresponding grayscale voltage of intensity level for each error that incoming video signal indicates, using the grayscale voltage as pixel driver electricity Press to each application of the source electrode line of display panel.Further more, in display driver, according to red, green, blue each The correspondence of a brightness carried out to being indicated by incoming video signal and the brightness actually shown by display panel carries out school Positive gamma correction.
Display driver as gamma correction as progress, it is proposed that the grayscale voltage life of the amount comprising 3 systems At the display driver of circuit（For example, referring to patent document 1）, the grayscale voltage generative circuit of the amount of 3 systems includes According to each color（Red, green, blue）It stores the register of the amount of 3 systems of the setting value for carrying out gamma correction and presses According to based on the characteristic of the setting value stored in the register come by display data according to each color（Red, green, blue）It is transformed to Grayscale voltage.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2012-137783 bulletins.
The subject that the invention solves
But grayscale voltage generative circuit also includes according to the setting stored in the register other than above-mentioned register Value generates the ladder shaped resistance of benchmark grayscale voltage corresponding with each gray scale and the amplifier for exporting the voltage.
Therefore, the grayscale voltage that the amount of 3 systems corresponding with each color is set is needed to generate electricity in display driver Road（Including register, ladder shaped resistance and amplifier）, the chip area occupied accordingly, there exist grayscale voltage generative circuit becomes larger And correspondingly the scale of display driver becomes larger this problem.
Invention content
Therefore, the purpose of the present invention is to provide it is possible to realize the display driver changed on a small scale and be formed with the display The semiconductor device of driver.
Solution for solving the problem
The present invention display driver be a kind of display driver, to multiple display units display equipment for give by The corresponding grayscale voltage of intensity level of each of the vision signal expression display unit, the display driver have：Gal Horse correction data unloading part will indicate multiple gamma correction data pieces of gamma corrected values according to each specified time limit one by one It sends out on ground；And grayscale voltage transformation component, according to based on by from the gamma school that the gamma correction data unloading part is sent out The gamma characteristic for the gamma corrected values that correction data piece indicates, the grayscale voltage is transformed to by the intensity level.
The semiconductor device of the present invention is a kind of semiconductor device, is formed with display driver, the display driver to Display equipment with multiple display units is for giving by the intensity level pair of each of the vision signal expression display unit The grayscale voltage answered, the display driver have：Gamma correction data unloading part will indicate multiple gammas of gamma corrected values Correction data piece is singly sent out according to each specified time limit；And grayscale voltage transformation component, according to based on by from described The gamma characteristic for the gamma corrected values that the gamma correction data piece that gamma correction data unloading part is sent out indicates, by institute It states intensity level and is transformed to the grayscale voltage.
Invention effect
In the present invention, it is provided with multiple gamma correction data pieces according to each specified time limit one by one in display driver The gamma correction data unloading part that ground is sent out, grayscale voltage transformation component is according to based on sending out from the gamma correction data unloading part The intensity level indicated by vision signal is transformed to grayscale voltage by the gamma characteristic of gamma correction data piece.
According to this structure, no matter the quantity of the type of gamma characteristic, is as long as being provided with 1 in display driver The grayscale voltage transformation component of the amount of system, therefore, with 3 kinds of gals corresponding to each color according to for example red, green, blue Intensity level is transformed to the gray scale electricity of the amount of 3 systems of grayscale voltage according to the gamma characteristic by each setting of horse characteristic The structure of pressure transformation component is compared, can be by circuit scale downsizing.
Description of the drawings
Fig. 1 is the block diagram of the outline structure for the display device 100 for showing the display driver comprising the present invention.
Fig. 2 is the internal work of an example and grayscale voltage transformation component 132 of the format for showing viewdata signal VDX An example time diagram.
Fig. 3 is the block diagram for the internal structure for showing data driver 13.
Fig. 4 is the block diagram for the internal structure for showing γ correction datas unloading part 130 and grayscale voltage transformation component 132.
Fig. 5 is to show benchmark grayscale voltage generative circuit 32（33）Internal structure an example circuit diagram.
Fig. 6 is another example and benchmark grayscale voltage generative circuit 32 for the format for showing viewdata signal VDX（33） Including γ registers and selector work time diagram.
Fig. 7 is the circuit diagram of another example for the internal structure for showing γ correction datas unloading part 130.
Fig. 8 is the block diagram of another structure for the display device 100 for showing the display driver comprising the present invention.
Fig. 9 be the format for showing the viewdata signal VDX in display device 100 shown in Fig. 8 an example and The time diagram of one example of the internal work of grayscale voltage transformation component 132A.
Figure 10 is to show scanning pulse DSP to data line D1~DmApplication timing an example time diagram.
Figure 11 is the block diagram for the internal structure for showing data driver 13A.
Figure 12 is the block diagram for the internal structure for showing γ correction data unloading part 130A and grayscale voltage transformation component 132A.
Specific implementation mode
Hereinafter, with reference to attached drawing and explaining the embodiment of the present invention in detail.
Fig. 1 is the block diagram of the outline structure for the display device 100 for showing the display driver comprising the present invention.In Fig. 1, Display driver 20 is made of such as liquid crystal display panel, has m stretched in the horizontal direction of two-dimensional picture（M be 2 with On natural number）Horizontal display lines S1~SmAnd n stretched in the vertical direction of two-dimensional picture（The even number that n is 2 or more） Data line D1~Dn.The display unit C for carrying out red display is formed in each cross part of horizontal display lines and data lineR, carry out The display unit C of green displayGOr carry out the display unit C of blue displayB。
Further more, in display driver 20, as shown in Figure 1 in horizontal display lines S1With data line D1~DnEach intersection Portion forms display unit CR, in horizontal display lines S2With data line D1~DnEach cross part form display unit CG, shown in level Line S3With data line D1~DnEach cross part form display unit CB.In addition, in horizontal display lines S4With data line D1~DnIt is each Cross part forms display unit CR, in horizontal display lines S5With data line D1~DnEach cross part form display unit CG, in level Show line S6With data line D1~DnEach cross part form display unit CB。
That is, horizontal display lines S（3r-2）（R is natural number）For n display unit C of red display will be carried outRIt is juxtaposed red Color shows line, horizontal display lines S（3r-1）For n display unit C of green display will be carried outGJuxtaposed green shows line, horizontal Show line S（3r）For n display unit C of blue display will be carried outBJuxtaposed blue shows line.
Drive control part 11 generates the viewdata signal VDX with format shown in Fig. 2 based on vision signal VD.
That is, drive control part 11 is primarily based on vision signal VD to obtain display data PD, in the display data PD Such as each display unit is indicated with the brightness/gray scale in 8 256 stages（CR、CG、CB）Intensity level.Then, drive control part 11 according to every 3 horizontal display lines S adjacent to each other will 3n display data PD corresponding with 3 horizontal display lines according to Each same color grouping.That is, 3n display data PD is grouped into comprising aobvious with red by drive control part 11 Show unit CRCorresponding display data PD1~PDnDisplay data sequence LDR, include and green display unit CGCorresponding display Data PD1~PDnDisplay data sequence LDG, include and blue display unit CBCorresponding display data PD1~PDnDisplay Data sequence LDB。
Then, generate as shown in Figure 2 will be with red corresponding display data sequence LD for drive control part 11RIt is arranged in The（3r-2）H during a horizontal sweep, will display data sequence LD corresponding with greenGIt is arranged in（3r-1）A horizontal sweep Period H, will be with the corresponding display data sequence LD of blueBIt is arranged in（3r）Picture number during a horizontal sweep after H it is believed that Number VDX.In turn, drive control part 11 is arranged according to H during each horizontal sweep in viewdata signal VDX and is based on The display data sequence（LDR、LDG、LDB）Display when the γ correction datas that use.
That is, as shown in Figure 2, display data sequence LD is arranged in viewdata signal VDXRLevel During scanning in H, it is arranged with the positive γ correction datas PG for the γ corrected values that each is indicated for red componentRWith it is negative The γ correction datas NG of poleR.In addition, being arranged with display data sequence LD in viewdata signal VDXGHorizontal sweep In period H, it is arranged with the positive γ correction datas PG for the γ corrected values that each is indicated for green componentGIt is used with cathode γ correction datas NGG.In addition, being arranged with display data sequence LD in viewdata signal VDXBHorizontal sweep during H It is interior, it is arranged with the positive γ correction datas PG for the γ corrected values that each is indicated for blue componentBWith the γ of cathode Correction data NGB.Further more, γ correction datas（PGR、NGR、PGG、NGG、PGB、NGB）Display data PD is being transformed to ash by expression Spend the information corresponding to the γ corrected values used when voltage.Specifically, γ correction datas are indicated from trapezoidal（ladder）Resistance（Afterwards It states）In the mutual tie point of resistance（Hereinafter referred to as export tap（output tap））Among specify carry out with the schools γ On the occasion of the information of such as 5 output taps of multiple output taps of corresponding transformation.
Drive control part 11 supplies the viewdata signal VDX generated as described above to data driver 13.In turn, Horizontal synchronization is detected signal whenever detecting horizontal synchronizing signal from vision signal VD and is driven to scanning by drive control part 11 Dynamic device 12 supplies.
Scanning pulse is sequentially applied to by scanner driver 12 in the timing synchronous with such horizontal synchronization detection signal Show the horizontal display lines S of equipment 201~SmEach.
Data driver 13 is formed on semiconducter IC（Integrated circuit, integrated circuit）Chip.
Fig. 3 is the block diagram for the internal structure for showing data driver 13.As shown in figure 3, data driver 13 has：The schools γ Correction data unloading part 130, data introduction part 131, grayscale voltage transformation component 132 and output section 133.
γ correction datas unloading part 130 extracts the γ correction datas PG of anode from viewdata signal VDXR、PGG Or PGB, the γ correction datas that the anode extracted is used are supplied as γ correction datas SP to grayscale voltage transformation component 132.This Outside, γ correction datas unloading part 130 extracts the γ correction datas NG of cathode from viewdata signal VDXR、NGGOr NGB, The γ correction datas that the cathode extracted is used are supplied as γ correction datas SN to grayscale voltage transformation component 132.
Data introduction part 131 is imported to be formed successively and be shown according to H during every 1 horizontal sweep from viewdata signal VDX The sequence of registration evidence（LDR、LDG、LDB）Display data PD1~PDn, by these n display data PD1~PDnAs display data Q1~QnIt is supplied to grayscale voltage transformation component 132.
Grayscale voltage transformation component 132 is according to the positive γ correction datas for being included according to viewdata signal VDX （PGR、PGG、PGB）Conversion characteristics by display data Q1~QnEach be transformed to simulation positive polarity grayscale voltage P1~ Pn.In turn, grayscale voltage transformation component 132 is according to the γ correction datas of the cathode for being included according to viewdata signal VDX （NGR、NGG、NGB）Conversion characteristics by display data Q1~QnEach be transformed to simulation negative polarity grayscale voltage N1~ Nn.Then, grayscale voltage transformation component 132 is by grayscale voltage P1~PnAnd N1~NnIt is supplied to output section 133.
Output section 133 alternately selects the grayscale voltage P of positive polarity according to the period of regulation1~PnWith the gray scale electricity of negative polarity Press N1~Nn, using a selected side as grayscale voltage G1~GnTo the data line D of display equipment 201~DnSupply.
Fig. 4 is an example for showing 132 respective internal structure of γ correction datas unloading part 130 and grayscale voltage transformation component The block diagram of son.As shown in figure 4, γ correction datas unloading part 130 includes γ correction datas extraction circuit 21, γ registers 22, γ Correction data extracts circuit 23 and γ registers 24.
γ correction datas extraction circuit 21 extracts just according to H during every 1 horizontal sweep from viewdata signal VDX The γ correction datas PG of poleR、PGGOr PGB, the γ correction datas PG that will be extractedR、PGGOr PGBIt is supplied to γ registers 22. The γ correction datas PG that the covering of γ registers 22 is supplied from γ correction datas extraction circuit 21R、PGGOr PGBAnd it is kept.γ Register 22 will be in γ correction datas PGR、PGGAnd PGBAmong 1 γ correction data keeping as described above used as anode γ correction datas SP sent out to grayscale voltage transformation component 132 throughout H during 1 horizontal sweep.
γ correction datas extraction circuit 23 extracts according to H during every 1 horizontal sweep from viewdata signal VDX negative The γ correction datas NG of poleR、NGGOr NGB, the γ correction datas NG that will be extractedR、NGGOr NGBIt is supplied to γ registers 24. The γ correction datas NG that the covering of γ registers 24 is supplied from γ correction datas extraction circuit 23R、NGGOr NGBAnd it is kept.γ Register 24 will be in γ correction datas NGR、NGGAnd NGBAmong 1 γ correction data keeping as described above used as cathode γ correction datas SN supplied to grayscale voltage transformation component 132 throughout H during 1 horizontal sweep.
By above-mentioned structure, γ correction datas unloading part 130 is by gamma correction data piece PGR、PGGAnd PGBAccording to each H is singly sent out to grayscale voltage transformation component 132 during horizontal sweep.In addition, γ correction datas unloading part 130 is by gamma Correction data piece NGR、NGGAnd NGBIt is singly sent out to grayscale voltage transformation component 132 according to H during each horizontal sweep.
Grayscale voltage transformation component 132 includes benchmark grayscale voltage generative circuit 32 and 33, DA translation circuits 34 and 35.
Benchmark grayscale voltage generative circuit 32 and 33 all has voltage setting terminal T1 ~ T3 and for exporting and 256 ranks Leading-out terminal U1 ~ U256 of the corresponding benchmark grayscale voltage of section.
Benchmark grayscale voltage generative circuit 32 receives have following such electricity via the voltage setting terminal T1 ~ T3 of itself The supply of setting voltage VG1 ~ VG3 of the magnitude relationship of pressure value.
VG1>VG2>VG3。
Benchmark grayscale voltage generative circuit 32 generates voltage value 256 ashes different from each other based on setting voltage VG1 ~ VG3 Benchmark grayscale voltage Y1 ~ Y256 of the positive polarity of the amount of degree supplies each to DA translation circuits 34.
Benchmark grayscale voltage generative circuit 33 receives have following such electricity via the voltage setting terminal T1 ~ T3 of itself The supply of setting voltage VG3 ~ VG5 of the magnitude relationship of pressure value.
VG3>VG4>VG5。
Benchmark grayscale voltage generative circuit 33 generates voltage value 256 ashes different from each other based on setting voltage VG3 ~ VG5 Benchmark grayscale voltage X1 ~ X256 of the negative polarity of the amount of degree supplies each to DA translation circuits 35.
DA translation circuits 34 are according to the display data Q supplied from data introduction part 1311~QnEach each from anode Property benchmark grayscale voltage Y1 ~ Y256 among corresponding with the brightness/gray scale indicated by display data Q the benchmark gray scale of selection it is electric Pressure.Then, DA translation circuits 34 will be directed to display data Q1~QnEach grayscale voltage Y selected as described above it is each A grayscale voltage P as positive polarity1~PnOutput.
DA translation circuits 35 are according to the display data Q supplied from data introduction part 1311~QnEach each from cathode Property benchmark grayscale voltage X1 ~ X256 among corresponding with the brightness/gray scale indicated by display data Q the benchmark gray scale of selection it is electric Pressure.Then, DA translation circuits 35 will be directed to display data Q1~QnEach grayscale voltage X selected as described above it is each A grayscale voltage N as negative polarity1~NnOutput.
Fig. 5 is the circuit diagram for showing 32 and 33 respective internal structure of benchmark grayscale voltage generative circuit.Further more, benchmark is grey Voltage generation circuit 32 and 33 circuit structures having the same each other are spent, each includes：Input amplifier AMP1 and AMP2, One ladder shaped resistance（RD0~RD160）, γ performance regulator circuits SX, output amplifier AP0 ~ AP6 and the second ladder shaped resistance（R0~ R254）.
First ladder shaped resistance has the resistance RD0 ~ RD160 being connected in series with, and the resistance in these resistance RD0 ~ RD160 is each other Tie point i.e. export tap a1 ~ a160 be connected to γ performance regulator circuits SX.Further more, voltage setting terminal T2 be connected to it is defeated Go out the output tap a81 of the centre among tap a1 ~ a160.
Input amplifier AMP1 will use gain 1 to the voltage after the voltage that voltage setting terminal T1 is received is amplified It is supplied to one end of the resistance RD0 of the file leader of the first ladder shaped resistance and output amplifier AP0 via line L0.Input amplifier AMP2 To use gain 1 to the voltage after the voltage that voltage setting terminal T3 is received is amplified via line L6 to the first ladder shaped resistance Rear molding resistance RD160 one end and output amplifier AP6 supply.
γ performance regulator circuits SX is by the γ correction datas SP by being supplied from γ correction datas unloading part 130（SN）It indicates 5 outputs point among output tap a1 ~ a160 of 5 output i.e. the first ladder shaped resistances of tap corresponding to γ corrected values Connector is connected to line L1 ~ L5.Further more, line L1 is connected to the input terminal of output amplifier AP1, line L2 is to output amplifier The input terminal of AP2 supplies.In turn, line L3 is supplied to the input terminal of output amplifier AP3, and line L4 is to output amplifier AP4 Input terminal supply, line L5 to the input terminal of output amplifier AP5 supply.For example, γ performance regulator circuits SX will be by γ Correction data SP（SN）The first output tap among 5 output taps corresponding to the γ corrected values of expression is connected to line L1, line L2 is connected to by the second output tap, and third output tap is connected to line L3.In turn, γ performance regulator circuits The 4th output tap among 5 output taps corresponding to the γ corrected values indicated by γ correction datas is connected to by SX 5th output tap is connected to line L5 by line L4.
There is second ladder shaped resistance the resistance R0 ~ R254 being connected in series with, leading-out terminal U1 to be connected to these resistance R0 ~ R254 Among file leader resistance R0 one end, leading-out terminal U256 is connected to one end of the resistance R254 of rear molding.In turn, such as Fig. 5 institutes Show that leading-out terminal U2 ~ U255 is connected to the mutual tie point of resistance in the resistance R0 ~ R254 being connected in series with like that.
Output amplifier AP0 by use gain 1 voltage of line L0 is amplified after voltage to one end of resistance R0 and Leading-out terminal U1 supplies.Output amplifier AP1 by use gain 1 voltage of line L1 is amplified after voltage to resistance R0 and The mutual tie points of R1 and leading-out terminal U2 supplies.Output amplifier AP2 will use gain 1 to be amplified the voltage of line L2 Voltage afterwards is supplied to the mutual tie point of resistance R30 and R31 and leading-out terminal U31.Output amplifier AP3 will use gain Voltage after the voltage of 1 couple of line L3 is amplified is supplied to the mutual tie point of resistance R126 and R127 and leading-out terminal U127 It gives.Output amplifier AP4 by use gain 1 voltage of line L4 is amplified after voltage it is mutual to resistance R214 and R215 Tie point and leading-out terminal U215 supplies.Output amplifier AP5 by use gain 1 voltage of line L5 is amplified after electricity Press to the mutual tie point of resistance R253 and R254 and leading-out terminal U255 supplies.Output amplifier AP6 will use gain 1 right Voltage after the voltage of line L6 is amplified is supplied to one end of resistance R254 and leading-out terminal U256.
Pass through structure shown in fig. 5, benchmark grayscale voltage generative circuit 32（33）It generates to have and is based on γ correction datas SP （SN）γ characteristics benchmark grayscale voltage Y1 ~ Y256（X1~X256）, they are converted via leading-out terminal U1 ~ U256 to DA Circuit 34（35）Supply, the γ correction datas SP（SN）It is the data supplied from γ correction datas unloading part 130.
Hereinafter, being illustrated with reference to Fig. 2 and to the work by Fig. 4 and structure shown in fig. 5 progress.
First, the display data sequence LD being arranged in viewdata signal VDX shown in Fig. 2R1 horizontal sweep In the CY1 of section, the γ correction datas extraction circuit 21 of γ correction datas unloading part 130 uses the anode arranged in its file leader portion γ correction datas PGRIt is extracted from viewdata signal VDX, and it is supplied to γ registers 22.In addition, at this 1 In the CY1 of horizontal sweep section, the γ correction datas extraction circuit 23 of γ correction datas unloading part 130 will arrange in its file leader portion Cathode γ correction datas NGRIt is extracted from viewdata signal VDX, and it is supplied to γ registers 24.As a result, γ registers 22 keep γ correction datas PGRAnd it is it is electric to benchmark gray scale as γ correction datas SP as shown in Figure 2 Press the γ performance regulator circuits SX supplies of generative circuit 32.In addition, γ registers 24 keep γ correction datas NGRAnd by it as schemed γ performance regulator circuits SX supplies shown in 2 like that as from γ correction datas SN to benchmark grayscale voltage generative circuit 33.
Benchmark grayscale voltage generative circuit 32, which generates to have, as a result, is based on γ correction datas PGRγ characteristics benchmark ash Voltage Y1 ~ Y256 is spent, and they are supplied to DA translation circuits 34.In addition, the generation of benchmark grayscale voltage generative circuit 33 has Based on γ correction datas NGRγ characteristics benchmark grayscale voltage X1 ~ X256, and they are supplied to DA translation circuits 35.Cause This, DA translation circuits 34, which are based on having, is based on γ correction datas PGRγ characteristics benchmark grayscale voltage Y1 ~ Y256, will with it is upper The display data sequence LD statedRCorresponding display data Q1~QnEach be transformed to simulation positive polarity grayscale voltage P1~ Pn.In addition, DA translation circuits 35, which are based on having, is based on γ correction datas NGRγ characteristics benchmark grayscale voltage X1 ~ X256, will With above-mentioned display data sequence LDRCorresponding display data Q1~QnEach be transformed to simulation negative polarity grayscale voltage N1~Nn。
Then, the display data sequence LD being arranged in viewdata signal VDX shown in Fig. 2G1 horizontal sweep In the CY2 of section, γ correction datas extract circuit 21 by the γ correction datas PG of the anode arranged in its file leader portionGFrom the figure As data-signal VDX is extracted, and it is supplied to γ registers 22.In addition, in 1 horizontal sweep section CY2, the schools γ Correction data extracts circuit 23 by the γ correction datas NG of the cathode arranged in its file leader portionGFrom viewdata signal VDX It extracts, and it is supplied to γ registers 24.γ registers 22 cover and keep γ correction datas PG as a result,GAnd by its γ performance regulator circuits SX supplies as from γ correction datas SP to benchmark grayscale voltage generative circuit 32 as shown in Figure 2. In addition, γ registers 24 cover and keep γ correction datas NGGAnd it is used as γ correction datas SN to base as shown in Figure 2 it The γ performance regulator circuits SX supplies of quasi- grayscale voltage generative circuit 33.
Benchmark grayscale voltage generative circuit 32, which generates to have, as a result, is based on γ correction datas PGGγ characteristics benchmark ash Voltage Y1 ~ Y256 is spent, and they are supplied to DA translation circuits 34.In addition, the generation of benchmark grayscale voltage generative circuit 33 has Based on γ correction datas NGGγ characteristics benchmark grayscale voltage X1 ~ X256, and they are supplied to DA translation circuits 35.Cause This, DA translation circuits 34, which are based on having, is based on γ correction datas PGGγ characteristics benchmark grayscale voltage Y1 ~ Y256, will with it is upper The display data sequence LD statedGCorresponding display data Q1~QnEach be transformed to simulation positive polarity grayscale voltage P1~ Pn.In addition, DA translation circuits 35, which are based on having, is based on γ correction datas NGGγ characteristics benchmark grayscale voltage X1 ~ X256, will With above-mentioned display data sequence LDGCorresponding display data Q1~QnEach be transformed to simulation negative polarity grayscale voltage N1~Nn。
Then, the display data sequence LD being arranged in viewdata signal VDX shown in Fig. 2B1 horizontal sweep In the CY3 of section, γ correction datas extract circuit 21 by the γ correction datas PG of the anode arranged in its file leader portionBFrom the figure As data-signal VDX is extracted, and it is supplied to γ registers 22.In addition, in 1 horizontal sweep section CY3, the schools γ Correction data extracts circuit 23 by the γ correction datas NG of the cathode arranged in its file leader portionBFrom viewdata signal VDX It extracts, and it is supplied to γ registers 24.γ registers 22 cover and keep γ correction datas PG as a result,BAnd by its γ performance regulator circuits SX supplies as from γ correction datas SP to benchmark grayscale voltage generative circuit 32 as shown in Figure 2. In addition, γ registers 24 cover and keep γ correction datas NGBAnd it is used as γ correction datas SN to base as shown in Figure 2 it The γ performance regulator circuits SX supplies of quasi- grayscale voltage generative circuit 33.
Benchmark grayscale voltage generative circuit 32, which generates to have, as a result, is based on γ correction datas PGBγ characteristics benchmark ash Voltage Y1 ~ Y256 is spent, and they are supplied to DA translation circuits 34.In addition, the generation of benchmark grayscale voltage generative circuit 33 has Based on γ correction datas NGBγ characteristics benchmark grayscale voltage X1 ~ X256, and they are supplied to DA translation circuits 35.Cause This, DA translation circuits 34, which are based on having, is based on γ correction datas PGBγ characteristics benchmark grayscale voltage Y1 ~ Y256, will with it is upper The display data sequence LD statedBCorresponding display data Q1~QnEach be transformed to simulation positive polarity grayscale voltage P1~ Pn.In addition, DA translation circuits 35, which are based on having, is based on γ correction datas NGBγ characteristics benchmark grayscale voltage X1 ~ X256, will With above-mentioned display data sequence LDBCorresponding display data Q1~QnEach be transformed to simulation negative polarity grayscale voltage N1~Nn。
Like this, in display device 100, drive control part 11 supplies viewdata signal VDX to data driver 13 It gives, being arranged with 1 level according to H during every 1 horizontal sweep as shown in Figure 2 in described image data-signal VDX shows The display data PD of the amount of timberline1~PDnAnd by display data PD1~PDnIt is transformed to the ash of positive polarity and negative polarity respectively Spend γ the correction datas PG and NG used when voltage.As a result, in the γ correction datas unloading part 130 of data driver 13, press γ correction datas PG and NG that viewdata signal VDX is included are covered each by γ deposits according to during every 1 horizontal sweep In device 22 and 24.Grayscale voltage transformation component 132 is according to based on γ the correction datas PG and NG being written in γ registers 22 and 24 Conversion characteristics, by the display data PD of the amount of 1 horizontal display lines1~PDnEach be transformed to the grayscale voltage of positive polarity P1~PnWith the grayscale voltage N of negative polarity1~Nn.The drive control part 11 and data driver 13 of display device 100 repeat this The a series of processing of sample.
Therefore, in order to generate positive polarity in grayscale voltage transformation component 132（Negative polarity）Grayscale voltage P1~Pn（N1~ Nn）As long as have the amount of 1 system includes amplifier as shown in Figure 5（AMP1,AMP2,AP0~AP6）, ladder shaped resistance （RD0~RD160,R0~R254）And γ performance regulator circuits（SX）Benchmark grayscale voltage generative circuit 32（33）.
Therefore, according to fig. 3 ~ structure shown in fig. 5, and it is dedicated according to red, green, each setting of blue component Grayscale voltage generative circuit（The grayscale voltage generative circuit of the amount of i.e. 3 systems）The driver of patent document 1 compare, can Keep circuit area small.
Further more, in the above-described embodiments, PG will be set as the γ correction datas of red componentRAnd NGR, green will be directed to The γ correction datas of component are set as PGGAnd NGG, PG will be set as the γ correction datas of blue componentBAnd NGB.Here, driving Control unit 11 is changed according to each horizontal display lines by these PGR、NGR、PGG、NGG、PGBAnd NGBContent that each is indicated is certainly Body also may be used.Thereby, it is possible to according to every 1 horizontal display lines（During every 1 horizontal sweep）Change the setting of γ characteristics.
In addition, in an example shown in Fig. 2, according to H during every 1 horizontal sweep in viewdata signal VDX, The amount of 1 horizontal display lines display data sequence LD be arranged with slightly before it is corresponding with 1 color among red, green and blue γ correction data PG and NG still be not necessarily required during whole horizontal sweeps to arrange γ correction datas PG and NG in H.
In addition, there is no for arranging γ correction datas PG in H during each horizontal sweep in viewdata signal VDX In the case of free time of NG, whole γ correction datas can also be arranged only in the file leader portion during 1 vertical scanning.
Fig. 6 is the figure of another example of the format for the viewdata signal VDX for showing to complete in view of such aspect. That is drive control part 11 supplies viewdata signal VDX to data driver 13, in described image data-signal VDX In be arranged with display data sequence LD corresponding with 1 horizontal display lines in H during each horizontal sweep as shown in Figure 6 simultaneously And whole γ correction datas PG are arranged in the file leader portion of V only during 1 vertical scanningR、PGG、PGB、NGR、NGGAnd NGB.This When, as the γ correction datas unloading part 130 of data driver 13, knot shown in Fig. 7 is used instead of structure shown in Fig. 4 Structure.
In the figure 7, γ correction datas extract circuit 41 according to V during every 1 vertical scanning in viewdata signal VDX Extract the γ correction datas PG of the anode arranged in its file leader portionR、PGGAnd PGB.Then, γ correction datas extract circuit The 41 γ correction datas PG that will be extractedRIt is supplied to γ registers 42, the γ correction datas PG that will be extractedGTo γ registers 43 Supply, the γ correction datas PG that will be extractedBIt is supplied to γ registers 44.γ registers 42 import from γ correction datas and extract electricity The γ correction datas PG that road 41 suppliesR, and it is kept throughout V during 1 vertical scanning as shown in Figure 6 and to selector 45 supplies.γ registers 43 import the γ correction datas PG supplied from γ correction datas extraction circuit 41G, and by it such as Fig. 6 institutes Show and keeps throughout V during 1 vertical scanning and supplied to selector 45 like that.γ registers 44 are imported to be extracted from γ correction datas The γ correction datas PG that circuit 41 suppliesB, and it is kept throughout V during 1 vertical scanning as shown in Figure 6 and to selection Device 45 supplies.Selector 45 is to 3 γ correction datas PGR、PGGAnd PGBAccording to H during every 1 horizontal sweep singly according to It is secondary to be selected and its γ as shown in Figure 6 as γ correction datas SP to benchmark grayscale voltage generative circuit 32 is special Property adjustment circuit SX supply.
γ correction datas extraction circuit 51 is extracted according to V during every 1 vertical scanning in viewdata signal VDX The γ correction datas NG of the cathode arranged in its file leader portionR、NGGAnd NGB.Then, γ correction datas extraction circuit 51 will be carried The γ correction datas NG takenRIt is supplied to γ registers 52, the γ correction datas NG that will be extractedGIt is supplied to γ registers 53, by institute The γ correction datas NG of extractionBIt is supplied to γ registers 54.γ registers 52 are imported to be supplied from γ correction datas extraction circuit 51 γ correction datas NGR, and it is kept throughout V during 1 vertical scanning as shown in Figure 6 and is supplied to selector 55. γ registers 53 import the γ correction datas NG supplied from γ correction datas extraction circuit 51G, and by its as shown in Figure 6 time And V keeps and is supplied to selector 55 during 1 vertical scanning.γ registers 54 are imported to be supplied from γ correction datas extraction circuit 51 The γ correction datas NG givenB, and it is kept throughout V during 1 vertical scanning as shown in Figure 6 and is supplied to selector 55 It gives.Selector 55 is to 3 γ correction datas NGR、NGGAnd NGBIt is singly carried out successively according to H during every 1 horizontal sweep Selection, and it is adjusted as γ correction datas SN to the γ characteristics of benchmark grayscale voltage generative circuit 33 as shown in Figure 6 Circuit SX supplies.
Therefore, in the case where using structure shown in Fig. 7 as γ correction datas unloading part 130, in order to generate just Polarity（Negative polarity）Grayscale voltage P1~Pn（N1~Nn）, need selector S45 according to red, green and blue each color （55）And the γ registers 42 ~ 44 of the amount of dedicated i.e. 3 systems of γ registers（52~54）.
But as long as the benchmark grayscale voltage generative circuit 32 of the amount of 1 system is arranged according to each polarity（33）, Therefore, and need corresponding with Hong Se, this 3 colors of green and blue 3 systems amount independent circuit patent document 1 Driver compare, circuit area can be made small.
In addition, in the above-described embodiments, in benchmark grayscale voltage generative circuit 32（33）Inside it is provided with input amplifier AMP1 and AMP2 and the first ladder shaped resistance（RD0~RD160）, via each output tap of first ladder shaped resistance（a1~ a160）Multiple voltages with voltage value different from each other are supplied to γ performance regulator circuits SX.But it excludes by the first ladder Circuit that shape resistance, input amplifier AMP1 and AMP2 are constituted and will be equivalent to from each of multiple output taps of the circuit The voltage group of the voltage of a output directly also may be used to the SX supplies of γ performance regulator circuits from external.
In addition, in the above-described embodiments, making γ correction data pieces（PGR、PGG、PGB、NGR、NGG、NGB）Included in picture number It is believed that come to supply to data driver 13 in number VDX, still, about γ correction datas, not making it includes in picture number it is believed that It directly also may be used externally to the supply of data driver 13 in the case of in number VDX.Even if as a result, in viewdata signal During 1 horizontal sweep in VDX in H for arrange the free time of γ correction datas it is insufficient in the case of, can also carry out The rewriting of the γ correction datas of H during every 1 horizontal sweep.
In addition, in the above-described embodiments, son illustrates to drive in case of showing equipment 20 for liquid crystal display panel Structure and the work of dynamic control unit 11 and data driver 13, still, display equipment 20 or for example organic EL （Electroluminescence, electroluminescent）Panel.At this point, drive control part 11 will only include the γ correction numbers of positive polarity According to（PGR、PGGAnd PGB）The viewdata signal VDX for being used as γ correction datas is supplied to data driver 13.In turn, it is not required to The γ correction datas extraction circuit 23 and γ registers 24 that γ correction datas unloading part 130 is included are wanted, also, does not need gray scale The benchmark grayscale voltage generative circuit 33 and DA translation circuits 35 that voltage transformating part 132 is included.
In short, as the display driver comprising drive control part 11 and data driver 13, as long as following to be provided with Gamma correction data unloading part（130）With grayscale voltage transformation component（32,34）Driver.That is, gamma correction data Unloading part is by multiple gamma correction data pieces（PGR、PGG、PGB）According to each specified time limit（H）Singly send out.In addition, Grayscale voltage transformation component, will according to the gamma characteristic based on the gamma correction data piece sent out from the gamma correction data unloading part The intensity level indicated by vision signal（Q1~Qn）It is transformed to grayscale voltage（P1~Pn）.Further more, being sent out as gamma correction data Portion, as long as to include control unit below（11）, gamma correction data extraction unit（21,41）And gamma register（22）Submitting Portion.That is, control unit generates viewdata signal（VDX）, in described image data-signal（VDX）In, according to each level Spaced apart display data piece during scanning（PD1~PDn）Sequence, also, according to during each horizontal sweep singly Arrange multiple gamma correction data pieces（PGR、PGG、PGB）, the display data piece（PD1~PDn）It indicates by vision signal（VD）Table The each display unit shown（CR、CG、CB）Intensity level.Gamma correction data extraction unit is from such viewdata signal According to gamma correction data piece is extracted during each horizontal sweep successively.Gamma register will be by the gamma correction data extraction unit The gamma correction data piece extracted keeps and is sent out to grayscale voltage transformation component.In addition, as gamma correction data unloading part, As long as to include control unit below（11）, gamma correction data extraction unit（41）, multiple gamma registers（42~44）And selection Device（45）Unloading part.That is, control unit generates viewdata signal（VDX）, in described image data-signal（VDX）In, According to spaced apart display data piece during each horizontal sweep（PD1~PDn）Sequence, also, during each vertical scanning（V） File leader portion in arrange multiple gamma correction data pieces（PGR、PGG、PGB）, the display data piece（PD1~PDn）It indicates by video Signal（VD）The each display unit indicated（CR、CG、CB）Intensity level.Gamma correction data extraction unit from picture number it is believed that According to extracting multiple gamma correction data pieces during each vertical scanning in number.Then, multiple gamma registers will be by the gamma Multiple gamma correction data pieces that correction data extraction unit extracts individually are kept respectively.Then, selector is to by these gals The gamma correction data piece that each of horse register is kept according to singly being selected successively during each horizontal sweep It selects, selected gamma correction data piece is sent out to grayscale voltage transformation component.
Further more, in the above-described embodiments, it, will be as shown in Figure 1 in horizontal display lines S as display equipment1~SmIt is every It is formed in one and undertakes same display color（It is red, blue or green）N display unit C display equipment 20 as driving pair As.But it will be in horizontal display lines S instead of the display equipment 201~SmEach in be adjacent to periodically be configured with display Color（It is red, blue or green）The display unit of 3 systems different from each other, so-called common display equipment is as driven object Also may be used.
Fig. 8 is the block diagram of another structure for the display device 100 for showing to complete in view of such aspect.Further more, in Fig. 8 Shown in structure, display device 100 be included in drive control part 11A, the scanner driver 12A that semiconductor IC chip is formed and Data driver 13A and display equipment 20A.
It is stretched in the horizontal direction of two-dimensional picture in the same manner as display equipment 20A and display equipment 20 shown in FIG. 1 M（The integer that m is 2 or more）Horizontal display lines S1~SmAnd n stretched in the vertical direction of two-dimensional picture（N is 2 Above integer）Data line D1~Dn.In showing equipment 20A, each cross part of horizontal display lines and data line be formed with into The display unit C of row red displayR, carry out the display unit C of green displayGOr carry out the display unit C of blue displayB.Its In, it is same as common liquid crystal display panel in showing equipment 20A, according to such as display unit in each horizontal display lines CR、CGAnd CBSequence each display unit be adjacent to configure periodically.Therefore, in data line D（3k-2）（The integer that k is 1 or more） In be formed with and horizontal display lines S1~SmCorresponding m display unit CR, in data line D（3k-1）In be formed with it is aobvious with level Timberline S1~SmCorresponding m display unit CG, in data line D（3k）In be formed with and horizontal display lines S1~SmIt corresponds to respectively M display unit CB。
Drive control part 11A generates the viewdata signal VDX with format shown in Fig. 9 based on vision signal VD.
That is, drive control part 11A is primarily based on vision signal VD to obtain display data PD, in the display data PD Such as each display unit is indicated with the brightness/gray scale in 8 256 stages（CR、CG、CB）Intensity level.Here, drive control part 11A will be corresponding with the frame according to every 1 frame of vision signal VD（n×m）A display data PD according to data line D1~DnRespectively Corresponding data are grouped into the first ~ the n-th display data group PX1 ~ PXn each other.That is, display data group PX1 ~ PXn's is every One by the data line D and horizontal display lines S corresponding to display data group PX1~SmThe cross part of each formed m A display unit C corresponding display data PD1~PDmSequence composition.For example, display data group PX1 is by data line D1With horizontal display lines S1~SmCross part formed m display unit CRThe corresponding display data PD of institute1~PDmSequence It constitutes.In addition, display data group PX2 is by data line D2With horizontal display lines S1~SmCross part formed m display unit CGThe corresponding display data PD of institute1~PDmSequence composition.
Then, drive control part 11A is generated as shown in Figure 9 by each of the first ~ the n-th display data group PX1 ~ PXn A viewdata signal VDX arranged successively according to Tv during each data scanning.Further more, during data scanning Tv have will for example According to data line D during 1 vertical scanning in viewdata signal VDX1~DnSum segmentation after during length.In turn, Drive control part 11A is arranged in viewdata signal VDX and carries out based on each according to each of Tv during the data scanning The γ correction datas used when the display of display data group.
Here, belonging to the display data group PX among the first ~ the n-th display data group PX1 ~ PXn（3k-2）Display data PD1 ~PDmAll display datas for undertaking red display.In turn, belong to display data group PX（3k-1）Display data PD1~PDmEntirely Portion is the display data for undertaking green display, belongs to display data group PX（3k）Display data PD1~PDmIt is all to undertake blue The display data of display.Therefore, drive control part 11A is being arranged with display data group PX（3k-2）Data scanning during row in Tv Arrange the positive γ correction datas PG for the γ corrected values that each is indicated for red componentRWith the γ correction datas of cathode NGR.In addition, being arranged with display data group PX（3k-1）Data scanning during in Tv, drive control part 11A arranges each table Show the γ correction datas PG of the anode of the γ corrected values for green componentGWith the γ correction datas NG of cathodeG.In turn, it drives Dynamic control unit 11A is being arranged with display data group PX（3k）Data scanning during in Tv arrangement each indicate for blue point The γ correction datas PG of the anode of the γ corrected values of amountBWith the γ correction datas NG of cathodeB。
Further more, γ correction datas（PGR、NGR、PGG、NGG、PGB、NGB）It specifically indicates from ladder shaped resistance shown in fig. 5 Each output tap among specify and carry out the multiple of transformation corresponding with the γ corrected values（Such as 5）Export the information of tap.
Drive control part 11A supplies the viewdata signal VDX generated as described above to data driver 13A, and And synchronously data scanning timing signal is supplied to scanner driver 12A with the vertical synchronizing signal in vision signal VD.
Scanner driver 12A is according to data scanning timing signal as shown in Figure 10 according to the week of Tv during data scanning Scanning pulse DSP with voltage Vp is alternatively supplied to the data line D of display equipment 20A by the phase successively1~DnIt is each.
The m display that viewdata signal VDX is included by data driver 13A according to Tv during each data scanning Data PD1~PDmIt is transformed to each grayscale voltage G corresponding with represented intensity level1~Gm, same with scanning pulse DSP Horizontal display lines S of the timing of step to display equipment 20A1~SmSupply.
Figure 11 is the block diagram for the internal structure for showing data driver 13A.As shown in figure 11, data driver 13A is generation It is adopted for γ correction datas unloading part 130, data introduction part 131, grayscale voltage transformation component 132 and output section 133 shown in Fig. 3 With the driving after γ correction data unloading parts 130A, data introduction part 131A, grayscale voltage transformation component 132A and output section 133A Device.
γ correction data unloading part 130A extract the γ correction datas PG of anode from viewdata signal VDXR、PGG Or PGB, the γ correction datas that the anode extracted is used are supplied as γ correction datas SP to grayscale voltage transformation component 132A.This Outside, γ correction datas unloading part 130A extracts the γ correction datas NG of cathode from viewdata signal VDXR、NGGOr NGB, γ correction datas that the cathode extracted is used supply as γ correction datas SN to grayscale voltage transformation component 132A.
Data introduction part 131A according to Tv during data scanning shown in Fig. 9 each from viewdata signal VDX Import the display data PD for belonging to display data group PX1~PDm, by these m display data PD1~PDmAs display data Q1~Qm It is supplied to grayscale voltage transformation component 132A.
Grayscale voltage transformation component 132A is according to Tv during each data scanning according to according to viewdata signal VDX packets The γ correction datas of the anode contained（PGR、PGG、PGB）Conversion characteristics by display data Q1~QmEach be transformed to simulate Positive polarity grayscale voltage P1~Pm.In turn, grayscale voltage transformation component 132A according to Tv during each data scanning according to pressing According to the γ correction datas of the viewdata signal VDX cathode for being included（NGR、NGG、NGB）Conversion characteristics by display data Q1 ~QmEach be transformed to simulation negative polarity grayscale voltage N1~Nm.Then, grayscale voltage transformation component 132A is by grayscale voltage P1~PmAnd N1~NmIt is supplied to output section 133A.
Output section 133A alternately selects the grayscale voltage P of positive polarity with the defined period1~PmWith the gray scale electricity of negative polarity Press N1~Nm, using a selected side as above-mentioned grayscale voltage G1~GmTo the horizontal display lines S of display equipment 20A1~SmFor It gives.
Figure 12 is show the respective internal structure of γ correction data unloading part 130A and grayscale voltage transformation component 132A one The block diagram of a example.As shown in figure 12, γ correction datas unloading part 130 includes that γ correction datas extract circuit 21A, γ register 22, γ correction datas extraction circuit 23A and γ registers 24.
γ correction datas extract circuit 21A according to Tv during data scanning shown in Fig. 9 each from picture number it is believed that The γ correction datas PG of anode is extracted in number VDXR、PGGOr PGB, the γ correction datas PG that will be extractedR、PGGOr PGBTo γ registers 22 supply.The γ correction datas PG that the covering of γ registers 22 is supplied from γ correction datas extraction circuit 21AR、PGGOr PGBAnd it is kept.γ registers 22 will be in γ correction datas PGR、PGGAnd PGBAmong 1 school γ keeping as described above Correction data is sent out throughout Tv during data scanning to grayscale voltage transformation component 132A as the γ correction datas SP of anode.
γ correction datas extract circuit 23A according to Tv during data scanning shown in Fig. 9 each from picture number it is believed that The γ correction datas NG of cathode is extracted in number VDXR、NGGOr NGB, the γ correction datas NG that will be extractedR、NGGOr NGBTo γ registers 24 supply.The γ correction datas NG that the covering of γ registers 24 is supplied from γ correction datas extraction circuit 23AR、NGGOr NGBAnd it is kept.γ registers 24 will be in γ correction datas NGR、NGGAnd NGBAmong 1 school γ keeping as described above Correction data is supplied throughout Tv during data scanning to grayscale voltage transformation component 132A as the γ correction datas SN of cathode.
Grayscale voltage transformation component 132A includes benchmark grayscale voltage generative circuit 32 and 33, DA translation circuits 34A and 35A.
Benchmark grayscale voltage generative circuit 32 generates benchmark grayscale voltage Y1 ~ Y256, and by them to DA translation circuits 34A Supply, the benchmark grayscale voltage Y1 ~ Y256 have based on the γ correction datas SP supplied from γ correction data unloading parts 130A γ characteristics.Benchmark grayscale voltage generative circuit 33 generates benchmark grayscale voltage X1 ~ X256, and by them to DA translation circuits 35A is supplied, and the benchmark grayscale voltage X1 ~ X256 has based on the γ correction datas supplied from γ correction data unloading parts 130A The γ characteristics of SN.
Further more, 32 and 34 respective internal structure of benchmark grayscale voltage generative circuit and the internal junction as shown in fig. 4 that works Structure is identical with work, and therefore, the description thereof will be omitted.
DA translation circuits 34A is according to the display data Q supplied from data introduction part 131A1~QmEach each from just Benchmark gray scale corresponding with the brightness/gray scale indicated by display data Q is selected among polar benchmark grayscale voltage Y1 ~ Y256 Voltage.Then, DA translation circuits 34A will be directed to display data Q1~QmEach grayscale voltage Y selected as described above Each grayscale voltage P as positive polarity1~PmOutput.DA translation circuits 35A is aobvious according to what is supplied from data introduction part 131A Registration is according to Q1~QmEach each selected among benchmark grayscale voltage X1 ~ X256 of negative polarity with by display data Q The corresponding benchmark grayscale voltage of brightness/gray scale of expression.Then, DA translation circuits 35A will be directed to display data Q1~QmEach Grayscale voltage N of each of the grayscale voltage X selected as described above as negative polarity1~NmOutput.
Hereinafter, the work carried out with reference to Fig. 9 and to structure as shown in Figure 12 illustrates.
First, the data scanning section of the display data group PX1 in being arranged with viewdata signal VDX shown in Fig. 9 In DS1, the γ correction datas of γ correction data unloading parts 130A extract circuit 21A by the anode arranged in its file leader portion γ correction datas PGRIt is extracted from viewdata signal VDX, and it is supplied to γ registers 22.In addition, being swept in the data It retouches in the DS1 of section, the γ correction datas extraction circuit 23A of γ correction data unloading parts 130A is negative by what is arranged in its file leader portion The γ correction datas NG of poleRIt is extracted from viewdata signal VDX, and it is supplied to γ registers 24.γ is posted as a result, Storage 22 is by γ correction datas PGRIt keeps and is used as γ correction datas SP to benchmark grayscale voltage as shown in Figure 9 it The γ performance regulator circuits SX supplies of generative circuit 32.In addition, γ registers 24 are by γ correction datas NGRIt keeps and by it as schemed γ performance regulator circuits SX supplies shown in 9 like that as from γ correction datas SN to benchmark grayscale voltage generative circuit 33.
Benchmark grayscale voltage generative circuit 32, which generates to have, as a result, is based on γ correction datas PGRγ characteristics benchmark ash Voltage Y1 ~ Y256 is spent, and they are supplied to DA translation circuits 34A.In addition, the generation of benchmark grayscale voltage generative circuit 33 has Based on γ correction datas NGRγ characteristics benchmark grayscale voltage X1 ~ X256, and by they to DA translation circuits 35A supply.Cause This, DA translation circuits 34A, which is based on having, is based on γ correction datas PGRγ characteristics benchmark grayscale voltage Y1 ~ Y256, will with it is upper The corresponding display data Q of display data group PX1 stated1~QmEach be transformed to simulation positive polarity grayscale voltage P1~Pm。 DA translation circuits 35A, which is based on having, is based on γ correction datas NGRγ characteristics benchmark grayscale voltage X1 ~ X256, will with it is above-mentioned The corresponding display data Q of display data group PX11~QmEach be transformed to simulation negative polarity grayscale voltage N1~Nn。
Then, the data scanning section of the display data group PX2 in being arranged with viewdata signal VDX shown in Fig. 9 In DS2, γ correction datas extract circuit 21A by the γ correction datas PG of the anode arranged in its file leader portionGFrom the image Data-signal VDX is extracted, and it is supplied to γ registers 22.In addition, in the DS2 of the data scanning section, γ correction numbers According to extraction circuit 23A by the γ correction datas NG of the cathode arranged in its file leader portionGIt is extracted from viewdata signal VDX Go out, and it is supplied to γ registers 24.γ registers 22 cover and keep γ correction datas PG as a result,GAnd by it such as Fig. 9 Shown such γ performance regulator circuits SX supplies as γ correction datas SP to benchmark grayscale voltage generative circuit 32.In addition, γ registers 24 cover and keep γ correction datas NGGAnd it is it is grey to benchmark as γ correction datas SN as shown in Figure 9 Spend the γ performance regulator circuits SX supplies of voltage generation circuit 33.
Benchmark grayscale voltage generative circuit 32, which generates to have, as a result, is based on γ correction datas PGGγ characteristics benchmark ash Voltage Y1 ~ Y256 is spent, and they are supplied to DA translation circuits 34A.In addition, the generation of benchmark grayscale voltage generative circuit 33 has Based on γ correction datas NGGγ characteristics benchmark grayscale voltage X1 ~ X256, and by they to DA translation circuits 35A supply.Cause This, DA translation circuits 34A, which is based on having, is based on γ correction datas PGGγ characteristics benchmark grayscale voltage Y1 ~ Y256, will with it is upper The corresponding display data Q of display data group PX2 stated1~QmEach be transformed to simulation positive polarity grayscale voltage P1~Pm。 DA translation circuits 35A, which is based on having, is based on γ correction datas NGGγ characteristics benchmark grayscale voltage X1 ~ X256, will with it is above-mentioned The corresponding display data Q of display data group PX21~QmEach be transformed to simulation negative polarity grayscale voltage N1~Nm。
Then, the data scanning section of the display data group PX3 in being arranged with viewdata signal VDX shown in Fig. 9 In DS3, γ correction datas extract circuit 21A by the γ correction datas PG of the anode arranged in its file leader portionBFrom the image Data-signal VDX is extracted, and it is supplied to γ registers 22.In addition, in the DS3 of the data scanning section, γ correction numbers According to extraction circuit 23A by the γ correction datas NG of the cathode arranged in its file leader portionBIt is extracted from viewdata signal VDX Go out, and it is supplied to γ registers 24.γ registers 22 cover and keep γ correction datas PG as a result,BAnd by it such as Fig. 9 Shown such γ performance regulator circuits SX supplies as γ correction datas SP to benchmark grayscale voltage generative circuit 32.In addition, γ registers 24 cover and keep γ correction datas NGBAnd it is it is grey to benchmark as γ correction datas SN as shown in Figure 9 Spend the γ performance regulator circuits SX supplies of voltage generation circuit 33.
Benchmark grayscale voltage generative circuit 32, which generates to have, as a result, is based on γ correction datas PGBγ characteristics benchmark ash Voltage Y1 ~ Y256 is spent, and they are supplied to DA translation circuits 34A.In addition, the generation of benchmark grayscale voltage generative circuit 33 has Based on γ correction datas NGBγ characteristics benchmark grayscale voltage X1 ~ X256, and by they to DA translation circuits 35A supply.Cause This, DA translation circuits 34A, which is based on having, is based on γ correction datas PGBγ characteristics benchmark grayscale voltage Y1 ~ Y256, will with it is upper The corresponding display data Q of display data group PX3 stated1~QmEach be transformed to simulation positive polarity grayscale voltage P1~Pm。 In addition, DA translation circuits 35, which are based on having, is based on γ correction datas NGBγ characteristics benchmark grayscale voltage X1 ~ X256, will be with The above-mentioned corresponding display data Q of display data group PX31~QmEach be transformed to simulation negative polarity grayscale voltage N1~ Nm。
As described above, in display device 100 shown in Fig. 8, drive control part 11A by viewdata signal VDX to Data driver 13A supply, in described image data-signal VDX as shown in Figure 9 according to during data scanning Tv it is every One is arranged with display data PD corresponding with 1 data line D1~PDmWith by display data PD1~PDmIt is transformed to respectively just γ the correction datas PG and NG used when the grayscale voltage of polarity and negative polarity.As a result, in the γ correction numbers of data driver 13A According in unloading part 130A, be covered each by picture number in γ registers 22 and 24 according to Tv during data scanning each it is believed that γ the correction datas PG and NG that number VDX is included.Grayscale voltage transformation component 132A is according to based on writing in γ registers 22 and 24 The conversion characteristics of the γ correction datas PG and NG that enter are by the display data PD of the amount of 1 horizontal display lines1~PDnEach transformation For the grayscale voltage P of positive polarity1~PnWith the grayscale voltage N of negative polarity1~Nn.The drive control part 11 and data of display device 100 Driver 13A repeats such a series of processing.
Therefore, in order to generate positive polarity in grayscale voltage transformation component 132A（Negative polarity）Grayscale voltage P1~Pn（N1~ Nn）As long as have the amount of 1 system includes amplifier as shown in Figure 5（AMP1,AMP2,AP0~AP6）, ladder shaped resistance （RD0~RD160,R0~R254）And γ performance regulator circuits（SX）Benchmark grayscale voltage generative circuit 32（33）.
Like this, in the configuration shown in fig. 8, horizontal display lines of the data driver 13A to display equipment 20A are used S1~SmSupply grayscale voltage G1~GmAnd scanner driver 12A is to data line D1~DnThe such drivings of supply scanning pulse DSP successively Method.Even if will be adjacent in each horizontal display lines periodically configured with display color as a result,（It is red, blue or green）Each other not In the case that the display unit of 3 same systems, so-called common display equipment is as driven object, as long as also there is 1 The amount of system in each color（It is red, blue or green）Common benchmark grayscale voltage generative circuit 32（33）, therefore, and previous Driver compared to circuit area capable of being made to become smaller.
In turn, in the configuration shown in fig. 8, it is set using the common display as above-mentioned as display equipment 20A It is standby, therefore, the display unit of same color is configured in each horizontal display lines as will be shown in Fig. 1（CR、CGOr CB） Display equipment 20 utilize CLEARTYPE as in the case of driven object, can carry out performance difficulty（Registered trademark）Side The character of formula is shown.Further more, CLEARTYPE（Registered trademark）It refer to Microsoft（Microsoft Corporation）It advocates Font of the display as character font data when anti-aliasing（anti-aliasing）One of technology.In the CLEARTYPE（Registration Trade mark）It is not by by 3 display units adjacent to each other in mode（CR、CG、CB）The unit performance of the pixel of composition is for example The profile of the oblique line portion of character but by the unit of display unit indicate such as character oblique line portion profile.
The explanation of reference numeral
11,11A drive control parts
12,12A scanner drivers
13,13A data drivers
20,20A shows equipment
21,23,41,51 γ correction datas extract circuit
22,24,42 ~ 44,52 ~ 54 γ registers
32,33 benchmark grayscale voltage generative circuit
34,35 DA translation circuits
45,55 selector
130 γ correction data unloading parts
132 grayscale voltage transformation components.

Claims (15)

1. a kind of display driver, to the display equipment with multiple display units for giving each institute indicated by vision signal State the corresponding grayscale voltage of intensity level of display unit, which is characterized in that have：
Gamma correction data unloading part will indicate multiple gamma correction data pieces of gamma corrected values according to each specified time limit one It sends out on a ground；And
Grayscale voltage transformation component, according to based on the gamma correction data piece by being sent out from the gamma correction data unloading part The gamma characteristic of the gamma corrected values indicated, the grayscale voltage is transformed to by the intensity level.
2. display driver according to claim 1, which is characterized in that the specified time limit is in the vision signal During horizontal sweep.
3. display driver according to claim 1 or 2, which is characterized in that the multiple gamma correction data piece is by table Show the first gamma correction data piece of the gamma corrected values for red component, indicate the gamma corrected values for being directed to green component Second gamma correction data piece and expression are constituted for the third gamma correction data piece of the gamma corrected values of blue component.
4. according to any one of them display driver of claim 1 ~ 3, which is characterized in that the period in the display equipment Property configured with will carry out the juxtaposed horizontal display lines of multiple display units of red display, the more of green display will be carried out The juxtaposed horizontal display lines of a display unit and multiple juxtaposed levels of display unit that blue display will be carried out Show line.
5. according to any one of them display driver of claim 1 ~ 4, which is characterized in that
The gamma correction data unloading part includes：
Control unit generates viewdata signal, in described image data-signal, according to spaced apart during each horizontal sweep The sequence of display data piece, also, according to singly arranging the multiple gamma correction data during each horizontal sweep Piece, the display data piece indicate each of to indicate the intensity level of the display unit by the vision signal；
Gamma correction data extraction unit, according to extracting the gal during each horizontal sweep successively from described image data-signal Horse correction data piece；And
Gamma register keeps the gamma correction data piece extracted from the gamma correction data extraction unit and to described Grayscale voltage transformation component is sent out.
6. display driver according to claim 5, which is characterized in that
Including data introduction part, the data introduction part is wrapped according to importing described image data-signal during each horizontal sweep The sequence of the display data piece contained obtains multiple display data pieces,
The grayscale voltage transformation component is indicated according to based on the gamma correction data piece by being sent out from the gamma register The gamma characteristics of the gamma corrected values intensity level that the multiple display data piece respectively indicates is transformed to The grayscale voltage.
7. according to any one of them display driver of claim 1 ~ 4, which is characterized in that
The gamma correction data unloading part includes：
Control unit generates viewdata signal, in described image data-signal, according to spaced apart during each horizontal sweep The sequence of display data piece, also, the multiple gamma correction data piece, institute are arranged in the file leader portion during each vertical scanning Display data piece is stated to indicate each of to indicate the intensity level of the display unit by the vision signal；
Gamma correction data extraction unit, according to extracting the multiple gal during each vertical scanning from described image data-signal Horse correction data piece；
Multiple gamma registers distinguish the multiple gamma correction data piece extracted by the gamma correction data extraction unit Individually keep；And
Selector, according to each guarantor singly selected successively during each horizontal sweep by the multiple gamma register The gamma correction data piece held sends out the selected gamma correction data piece to the grayscale voltage transformation component.
8. display driver according to claim 7, which is characterized in that
Including data introduction part, the data introduction part is wrapped according to importing described image data-signal during each horizontal sweep The sequence of the display data piece contained obtains multiple display data pieces,
The grayscale voltage transformation component is according to based on the institute indicated by the gamma correction data piece sent out from the selector State the gamma characteristics of gamma corrected values the intensity level that the multiple display data piece respectively indicates is transformed to it is described Grayscale voltage.
9. a kind of semiconductor device, it is formed with display driver, the display driver is to the display with multiple display units Equipment is for giving by the corresponding grayscale voltage of intensity level of each of the vision signal expression display unit, the semiconductor Device is characterized in that,
The display driver has：
Gamma correction data unloading part will indicate multiple gamma correction data pieces of gamma corrected values according to each specified time limit one It sends out on a ground；And
Grayscale voltage transformation component, according to based on the gamma correction data piece by being sent out from the gamma correction data unloading part The gamma characteristic of the gamma corrected values indicated, the grayscale voltage is transformed to by the intensity level.
10. display driver according to claim 1, which is characterized in that
The display driver includes each the first ~ the m horizontal display lines for being stretched in the horizontal direction of picture and every One the first ~ the n-th data line for stretching in the vertical direction of picture and intersecting with the first ~ the m horizontal display lines, in institute Each cross part for stating the first ~ the m horizontal display lines and the first ~ the n-th data line is formed with the display unit, wherein m is 2 or more integer, the integer that n is 2 or more,
The display driver includes：
Scanner driver, by scanning pulse successively, alternatively each supply to the first ~ the n-th data line；And
Data driver, including the grayscale voltage transformation component, the timing synchronous with the scanning pulse will described first ~ Grayscale voltage described in corresponding the first ~ the m of the m that is formed in each of the n-th data line display units institutes is to institute State the supply of the first ~ the m horizontal display lines.
11. display driver according to claim 10, which is characterized in that in each of the first ~ the n-th data line In be formed with a display units of m for carrying out that mutually the same color show.
12. display driver according to claim 11 or 12, which is characterized in that
The gamma correction data unloading part includes：
Control unit generates viewdata signal, in described image data-signal, according to m m ground of each specified time limit Display data piece is arranged, also, the multiple gamma correction data piece is singly arranged according to each specified time limit, The display data piece indicates each of to indicate the intensity level of the display unit by the vision signal；
Gamma correction data extraction unit extracts the gal successively from described image data-signal according to each specified time limit Horse correction data piece；And
Gamma register keeps the gamma correction data piece extracted from the gamma correction data extraction unit and to described Grayscale voltage transformation component is sent out.
13. semiconductor device according to claim 9, which is characterized in that
The display driver includes each the first ~ the m horizontal display lines for being stretched in the horizontal direction of picture and every One the first ~ the n-th data line for stretching in the vertical direction of picture and intersecting with the first ~ the m horizontal display lines, in institute Each cross part for stating the first ~ the m horizontal display lines and the first ~ the n-th data line is formed with the display unit, wherein m is 2 or more integer, the integer that n is 2 or more,
The display driver includes：
Scanner driver, by scanning pulse successively, alternatively each supply to the first ~ the n-th data line；And
Data driver, including the grayscale voltage transformation component, the timing synchronous with the scanning pulse will described first ~ Grayscale voltage described in corresponding the first ~ the m of the m that is formed in each of the n-th data line display units institutes is to institute State the supply of the first ~ the m horizontal display lines.
14. semiconductor device according to claim 13, which is characterized in that in each of the first ~ the n-th data line In be formed with a display units of m for carrying out that mutually the same color show.
15. the semiconductor device according to claim 13 or 14, which is characterized in that
The gamma correction data unloading part includes：
Control unit generates viewdata signal, in described image data-signal, according to m m ground of each specified time limit Display data piece is arranged, also, the multiple gamma correction data piece is singly arranged according to each specified time limit, The display data piece indicates each of to indicate the intensity level of the display unit by the vision signal；
Gamma correction data extraction unit extracts the gal successively from described image data-signal according to each specified time limit Horse correction data piece；And
Gamma register keeps the gamma correction data piece extracted from the gamma correction data extraction unit and to described Grayscale voltage transformation component is sent out.
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