CN106652963A - Silicon-based display adopting digital-analog hybrid drive - Google Patents
Silicon-based display adopting digital-analog hybrid drive Download PDFInfo
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- CN106652963A CN106652963A CN201710137047.6A CN201710137047A CN106652963A CN 106652963 A CN106652963 A CN 106652963A CN 201710137047 A CN201710137047 A CN 201710137047A CN 106652963 A CN106652963 A CN 106652963A
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 71
- 239000010703 silicon Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 11
- 239000004065 semiconductor Substances 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 7
- 230000005669 field effect Effects 0.000 claims description 6
- 230000004927 fusion Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- 241000023320 Luma <angiosperm> Species 0.000 claims description 3
- 238000005401 electroluminescence Methods 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 claims description 3
- 241000894007 species Species 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
- 238000004088 simulation Methods 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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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
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
-
- 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]
-
- 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]
- G09G3/3225—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] using an active matrix
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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)
Abstract
The invention discloses a silicon-based display adopting digital-analog hybrid drive. Pixels are driven to emit light through the method of combining the simulation amplitude modulation drive strategy and a digital pulse width modulation drive strategy, wherein the luminance of the pixels is determined by output current or voltage amplitude of the pixels in the subframe and the duty ratio of time of the output current or voltage of the pixels in the subframe, the frame of image is divided into a plurality of different digital subframes and simulation subframes, the digital drive strategy is adopted for the digital subframes, the time proportionable drive mode or luminance proportionable drive mode is adopted, the simulation drive strategy is adopted for the simulation subframes, many digital-analog converters with few digits are adopted, input data is converted into amplitude quantity of voltage or current, so that the pixels emit light, and the simulation subframes and the digital subframes are combined to generate the final display frame. The requirements of the simulation amplitude modulation drive strategy for the digital-analog converter and the requirements of the pixel circuit for the precision of analog quantity are reduced, and the conversion speed of the digital-analog converter and the contrast of the pixel luminance are improved.
Description
Technical field
The present invention relates to microelectronics and technical field of flat panel display, more particularly to the silicon substrate that a kind of fusion of digital-to-analogue drives shows
Device.
Background technology
Microdisplay on silicon is a kind of miniscope with silicon semiconductor integrated circuit as substrate, is integrated with silicon substrate
The drive circuit of display.Different according to displaying principle, microdisplay on silicon can be divided into silicon-based organic light-emitting micro-display, silicon substrate
Light emitting diode micro-display, silicon based LCD micro-display, silicon-base micro-mechanical micro-display etc..The pixel of microdisplay on silicon is non-
Often little, it produces large screen display effect by optical system, can be applicable in military affairs, industry, medical treatment and consumer electronics.Mesh
Before, microdisplay on silicon forward direction more high definition resolution ratio, more high grade grey level number, higher refreshing frequency direction are developed.
The pixel driver mode of microdisplay on silicon can be divided into simulation two kinds of strategies of amplitude modulation and digital pulse width modulation.
In simulation amplitude modulation strategy, the brightness of pixel to be directly proportional by the voltage or electric current of pixel, with display resolution and
The raising of refresh rate, display requires that the digital to analog converter and image element circuit in drive circuit has higher signal conversion speed
Degree, but while to ensure that analog quantity has sufficiently high precision and high pixel intensity contrast.With simulation amplitude modulation phase
Time that pixel lights is controlled using the dutycycle of pixel voltage or electric current so as to control pixel than, digital pulse width modulation strategy
Brightness, produce different gray levels, its high precision, picture noise are low, pixel contrast is high, tonal gradation is high, special to circuit
The requirement of property is also lower.However, under conditions of high-resolution and high refresh rate, digital scan strategy needs high data band
Width, to systematic function higher challenge is proposed.
Therefore, those skilled in the art is devoted to developing the silicon substrate display that a kind of digital-to-analogue fusion drives, and simulates amplitude
Modulation and two kinds of strategies of digital pulse width modulation are used in mixed way, and obtain in terms of the two in required data bandwidth and precision brightness
Optimum balance.
The content of the invention
Strategy and digital pulse width modulation is driven to drive the tactful skill for existing for the simulation amplitude modulation of microdisplay on silicon
Art defect, the present invention proposes the microdisplay on silicon that a kind of digital-to-analogue fusion drives, and for reducing simulation amplitude modulation strategy is driven
Requirement, the conversion speed of raising digital to analog converter, the raising pixel of logarithm weighted-voltage D/A converter and image element circuit to simulation accuracy of measurement
The contrast of brightness, on the other hand, reduces requirement, reduction redundancy that digital pulse width modulation drives strategy to circuit sweeps speed etc.
Treat the time, improve scan efficiency, it is also possible to reduce the capacitance size of image element circuit, the area for reducing digital to analog converter will
Ask, further break through because the limitation of turntable driving mode is to the resolution ratio of microdisplay on silicon and the restriction of refresh rate.
To reach above-mentioned purpose, idea of the invention is that：Strategy and digital pulse width modulation are driven using simulation amplitude modulation
The mode that combines of strategy is driven to drive pixel light emission, the width of the output current or voltage of the brightness of pixel by pixel in subframe
The duty ratio of time of the output current or voltage of value and the pixel in subframe is together decided on, and a two field picture is divided into some
Individual different digital subframe and ana-log sub-frame, for digital subframe adopts digital drive strategy, using time proportional driving side
Formula or the proportional type of drive of brightness, for ana-log sub-frame adopts analog-driven strategy, using the less number of more, digit
Weighted-voltage D/A converter, combines pixel light emission, ana-log sub-frame and digital subframe the amplitude amount that input data is converted to voltage or electric current
Produce final display frame.As a result of the mode that digital pulse width modulation drives, for same display resolution and gray scale
Series, the digit of digital to analog converter declines, and the required precision to analog quantity declines, therefore image element circuit output voltage or electric current
Precision is higher, and the conversion speed of digital to analog converter also gets a promotion, as a result of simulation amplitude modulation type of drive, to data
Transmission quantity require decline, in the case of same sweep speed, display resolution, number of greyscale levels and refresh rate are carried
Height, contrast is also improved.
According to above-mentioned inventive concept, the present invention adopts following technical schemes：
The silicon substrate display that a kind of digital-to-analogue fusion drives, it is characterised in that：(1) included at least semiconductor silicon substrate and
The pixel of silicon substrate surface and the drive circuit being contained in silicon base and interface, the drive circuit is including at least gold
Category-oxide semiconductor field effect transistor and at least two layers metal level；(2) pixel is particularly shown the bright of frame at one
Spend by the pixel the output current of the display frame in or the amplitude of voltage and the pixel the display frame in output current
Or the duty ratio of time of voltage is together decided on；The display frame is contained and for pixel grey scale information in particular display area to pass through institute
State interface to transmit by the drive circuit to the process of the pixel；(3) particular display frame is further divided into some
Subframe, the subframe is contained the particular subset of pixel grey scale information in particular display area by the interface by described
Drive circuit is transmitted to the process of the pixel；(4) drive circuit is contained and is being particularly shown for producing the pixel
The output current of frame in or the amplitude of voltage and the pixel are in the output current of the display frame in or the duty ratio of time of voltage
Circuit.
Further, the pixel actively lights or by the anti-of pixel top layer by the luminescent substance on pixel top layer
Penetrate material and reflected light source luminous so as to be formed, the luminescent substance produces electricity for one kind by curtage is applied
The material of photoluminescence phenomenon, including organic electroluminescence device or LED device；The reflecting material for it is a kind of by
Apply curtage and reflect or through the material of light, including liquid crystal.
Further, the drive circuit includes pixel unit circuit, and the pixel unit circuit is including at least output
Transistor and pixel electrode, the output transistor passes through conductive through hole output current or voltage to pixel electrode, the pixel
Electrode is the male or female of pixel.
Further, the pixel unit circuit also includes select lines, data wire and electric capacity, when select lines is the first shape
During state, the magnitude of voltage on data wire is stored to electric capacity；When select lines is the second state, select lines nearest is kept on electric capacity
It is secondary for first state when data wire on magnitude of voltage.
Further, the pixel unit circuit also has compensation function, and the compensation function contains reduction or disappears
It is described inconsistent except the output current or voltage of different pixels electrode are affected by output transistor and luminescent substance inconsistency
Property include threshold voltage, electron mobility, equivalent resistance, equivalent capacity, current decay, the inconsistency of brightness decay.
Further, the drive circuit also includes column drive circuit, and the column drive circuit can be just including at least D
To or the first register group of shift reverse be used to produce column data signal, the column data signal is used for driving data line, often
The first trigger that the individual first register group is sequentially connected comprising M head and the tail, first trigger is locked in clock edge
Deposit data is exported to the connected trigger of the next one first, and D and M is all the positive integer more than or equal to 1.
Further, first trigger is by buffer output column data signal, and the buffer is by updating letter
Number control, when more new signal is first state, the output signal of D*M buffer is updated to respectively individual first triggers of D*M
Output signal, when more new signal is the second state, the output signal holding of D*M buffer is constant.
Further, the column drive circuit includes at least M level translator, and the level translator is by the row
First level conversion of data-signal is second electrical level, and the second electrical level is higher or lower than the first level.
Further, the column drive circuit also includes some digital to analog converters, and the digital to analog converter is by column data
Signal is analog signal by the digital signal transition of two or more than two, and the data signal only has two kinds of determination states, institute
State analog signal in given range can consecutive variations, the species of the digital to analog converter comprising voltage scaling type, two
System weighting resistor type, the trapezoidal types of R-2R, binary current source type, segmented current-steering type.
Further, each digital to analog converter is all connected to X row pixels, the transistor by transistor switch group
In synchronization only one of which transistor switch effectively, the transistor switch is by one or more metal-oxides for switches set
Semiconductor field effect transistor is constituted, and X is the integer more than or equal to 1.
Further, each digital to analog converter is connected to a row driver, and the row driver is used to strengthen
The driving force of column data signal, accelerates the data variation speed of pixel unit circuit.
Further, the column drive circuit also includes some bypass apparatus, and the bypass apparatus are used to make digital to analog converter
Invalid, column data signal output is data signal.
Further, the drive circuit also includes horizontal drive circuit, and the horizontal drive circuit produces pixel cell electricity
The row gating signal on road, the row gating signal is used to drive the select lines of pixel unit circuit.
Further, the horizontal drive circuit includes decoder, and the decoder is used for the input signal after coding
Decoding, makes some or several row gating signals effective.
Further, the horizontal drive circuit is used including at least one group of second register group that can be shifted forward or backwards
In row gating signal is produced, the second register group includes R the second trigger being sequentially connected from beginning to end, second triggering
Device is exported to the connected trigger of the next one second in clock edge latch data, and R is the positive integer more than or equal to 1.
Further, the horizontal drive circuit includes line driver, and the line driver is used to strengthen row gating signal
Driving force, accelerate pixel unit circuit gating speed.
Further, the interface is used to receive bit plane information and be input to drive circuit, institute's bit planes
For the data acquisition system that pixel gray level data in particular display area have same bits position, the luma data is to characterize pixel to send out
The data of brightness degree, the bit is the weights with carry rules, the accepting method be parallel data signal or
Differential set signal.
Further, it is characterised in that further comprises temperature sensor and/or negative pressure controller, the TEMP
Device is used for the temperature of measuring circuit, and the negative pressure controller is a kind of DC-DC transform controllers, described for producing negative voltage
Negative voltage is a kind of voltage less than zero level.
The present invention compared with prior art, with following obviously substantive distinguishing features and remarkable advantage：
(1) compared with driving strategy with traditional simulation amplitude modulation, present invention reduces digital to analog converter and pixel
The required precision of circuit, the conversion accuracy and conversion speed that improve digital to analog converter；
(2) compared with driving strategy with traditional digital pulse width modulation, present invention reduces the requirement of circuit sweeps speed,
Reduce the redundancy stand-by period, improve scan efficiency, further break through because the limitation of turntable driving mode is micro- to silicon substrate aobvious
Show the resolution ratio of device and the restriction of refresh rate；
(3) compared with traditional microdisplay on silicon drive circuit, present invention reduces digital to analog converter and pixel list
The area requirements of first circuit, reduce the area and complexity of circuit, such that it is able to further improve picture element density；
(4) compared with traditional microdisplay on silicon technology, the present invention can improve number of greyscale levels and the contrast of pixel
Degree.
The technique effect of the design, concrete structure and generation of the present invention is described further below with reference to accompanying drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is the basic block diagram of the microdisplay on silicon of a preferred embodiment of the present invention；
Fig. 2 is that the microdisplay on silicon of a preferred embodiment of the present invention shows frame drive waveforms figure；
Fig. 3 is that the microdisplay on silicon of a preferred embodiment of the present invention shows sub-frame drive oscillogram；
Fig. 4 is the relation schematic diagram of the luminescent substance 05 with microdisplay on silicon of a preferred embodiment of the present invention；
Fig. 5 is the relation schematic diagram of the reflecting material 06 with microdisplay on silicon of a preferred embodiment of the present invention；
Fig. 6 is the schematic diagram of the pixel unit circuit 10 with microdisplay on silicon of a preferred embodiment of the present invention；
Fig. 7 is the structure chart of the pixel unit circuit 10 of the microdisplay on silicon of a preferred embodiment of the present invention；
Fig. 8 is the structure chart of the pixel unit circuit 10 of the microdisplay on silicon of another preferred embodiment of the present invention；
Fig. 9 is the structure chart of the column drive circuit 11 of the microdisplay on silicon of a preferred embodiment of the present invention；
Figure 10 is the structure chart of the column drive circuit 11 of the microdisplay on silicon of another preferred embodiment of the present invention；
Figure 11 is the structure chart of the horizontal drive circuit 12 of the microdisplay on silicon of a preferred embodiment of the present invention；
Figure 12 is the structure chart of the horizontal drive circuit 12 of the microdisplay on silicon of a preferred embodiment of the present invention；
Figure 13 is the structure chart of the drive circuit 03 of the microdisplay on silicon of a preferred embodiment of the present invention.
Specific embodiment
The preferred embodiments of the present invention are described with reference to the drawings as follows：
Embodiment one：
Fig. 1 illustrates a kind of basic structure of microdisplay on silicon of present invention employing, and top is side view, and bottom is to bow
View, the pixel 02 for having included at least semiconductor silicon substrate 01 and silicon substrate surface and the driving electricity being contained in silicon base
Road 03 and interface 04, the drive circuit 03 is including at least Metal-Oxide Semiconductor field-effect transistor and at least two layers
Metal level；The pixel 02 the brightness for being particularly shown frame in by the pixel the display frame in output current or voltage
Amplitude and the pixel together decide in the output current of the display frame in or the duty ratio of time of voltage；The display frame bag
Contain and by the interface 04 pixel grey scale information in particular display area has been transmitted to the picture by the drive circuit 03
The process of element 02；The particular display frame is further divided into some subframes, and the subframe is contained in particular display area
The particular subset of pixel grey scale information is transmitted to the process of the pixel 02 by the interface 04 by the drive circuit 03.
The drive circuit 03 contain for produce the pixel 02 be particularly shown the output current of frame in or the amplitude of voltage with
And the pixel is in the circuit of the duty ratio of time of the output current or voltage of the display frame in.
Fig. 2 is a kind of example that the microdisplay on silicon shows frame drive waveforms figure, and each shows that frame contains width
Value drives and dutycycle drives two kinds of type of drive, and driving variable is curtage.
Fig. 3 is a kind of example that the microdisplay on silicon shows sub-frame drive oscillogram, and four show subframe A, B, C, D
Respectively amplitude drives, dutycycle drives, amplitude drives, dutycycle drives, and driving variable is curtage.
Figure 13 is the structure chart of the drive circuit 03 of the microdisplay on silicon of a preferred embodiment of the present invention.
Embodiment two：
The present embodiment is essentially identical with embodiment one, is particular in that：
The pixel 02 actively lights or by the reflecting material on pixel top layer by the luminescent substance 05 on pixel top layer
06 pair of light source is reflected luminous so as to be formed, and the luminescent substance 05 is produced electroluminescent for one kind by curtage is applied
The material of luminescence phenomenon, including organic electroluminescence device or LED device；The reflecting material 06 for it is a kind of by
Apply curtage and reflect or through the material of light, including liquid crystal.The luminescent substance 05 and the microdisplay on silicon
Relation as shown in figure 4, the reflecting material 06 is as shown in Figure 5 with the relation of the microdisplay on silicon.
Embodiment three：
The present embodiment is essentially identical with embodiment one, is particular in that：
The drive circuit 03 includes pixel unit circuit 10, and the pixel unit circuit 10 includes at least output transistor
20 and pixel electrode 08, the output transistor 20 by the output current of conductive through hole 07 or voltage to pixel electrode 08, it is described
Pixel electrode 08 is the male or female of pixel 02.The pixel unit circuit 10 is such as schemed with the relation of the microdisplay on silicon
Shown in 6.
Example IV：
The present embodiment is essentially identical with embodiment three, is particular in that：
The pixel unit circuit 10 also includes select lines 51, data wire 52 and electric capacity 53, when select lines 51 is the first shape
During state, the magnitude of voltage on data wire 52 is stored to electric capacity 53；When select lines 51 is the second state, gating is kept on electric capacity 53
The magnitude of voltage on data wire 52 when the last time of line 51 is first state.The structure of the pixel unit circuit 10 such as Fig. 7 and
Shown in Fig. 8.
Embodiment five：
The present embodiment is essentially identical with embodiment three, is particular in that：
The pixel unit circuit 10 also has compensation function, and the compensation function contains reduction or eliminates different pixels
The output current or voltage of electrode 08 is affected by output transistor 20 and the inconsistency of luminescent substance 05, the inconsistency bag
Containing threshold voltage, electron mobility, equivalent resistance, equivalent capacity, current decay, brightness decay inconsistency.
Embodiment six：
The present embodiment is essentially identical with embodiment one, is particular in that：
The drive circuit 03 includes column drive circuit 11, and the column drive circuit 11 can be positive or anti-including at least D
It is used to produce column data signal 13 to the first register group 21 of displacement, the column data signal 13 is used for driving data line 52,
Each described first register group 21 includes M the first trigger 31 being sequentially connected from beginning to end, first trigger 31 when
Clock edge latch data is exported to the connected trigger of the next one first, and D and M is all the positive integer more than or equal to 1.
, by the output column data signal 13 of buffer 32, the buffer 32 is by more new signal 54 for first trigger 31
Control, when more new signal 54 is first state, the output signal of D*M buffer is updated to respectively D*M the first trigger
Output signal, when more new signal 54 is the second state, the output signal holding of D*M buffer is constant.
The column drive circuit 11 also includes at least M level translator 33, and the level translator 33 is by the columns
It is believed that numbers 13 the first level conversion is second electrical level, the second electrical level is higher or lower than the first level.
The column drive circuit 11 also includes some digital to analog converters 34, and the digital to analog converter 34 is by column data signal 13
It is analog signal by the digital signal transitions of two or more than two, the data signal only has two kinds of determination states, the mould
Intend signal in given range can consecutive variations, the species of the digital to analog converter 34 enters comprising voltage scaling type, two
Weighting resistor type processed, the trapezoidal types of R-2R, binary current source type, segmented current-steering type.
Each digital to analog converter 34 is all connected to X row pixels, the transistor switch group by transistor switch group 22
22 is effective in synchronization only one of which transistor switch 35, and the transistor switch 35 is by one or more metal-oxides
Semiconductor field effect transistor is constituted, and X is the integer more than or equal to 1.
Each digital to analog converter 34 is connected to a row driver 36, and the row driver 36 is used to strengthen column data
The driving force of signal 13, accelerates the data variation speed of pixel unit circuit 10.
The structure of the column drive circuit 11 is as shown in Figure 9.
Embodiment seven：
The present embodiment is essentially identical with embodiment one, is particular in that：
The drive circuit 03 includes column drive circuit 11, and the column drive circuit 11 can be positive or anti-including at least D
It is used to produce column data signal 13 to the first register group 21 of displacement, the column data signal 13 is used for driving data line 52,
Each described first register group 21 includes M the first trigger 31 being sequentially connected from beginning to end, first trigger 31 when
Clock edge latch data is exported to the connected trigger of the next one first, and D and M is all the positive integer more than or equal to 1.
, by the output column data signal 13 of buffer 32, the buffer 32 is by more new signal 54 for first trigger 31
Control, when more new signal 54 is first state, the output signal of D*M buffer is updated to respectively D*M the first trigger
Output signal, when more new signal 54 is the second state, the output signal holding of D*M buffer is constant.
The column drive circuit 11 also includes at least M level translator 33, and the level translator 33 is by the columns
It is believed that numbers 13 the first level conversion is second electrical level, the second electrical level is higher or lower than the first level.
Each level translator 33 is connected to a row driver 36, and the row driver 36 is used to strengthen column data
The driving force of signal 13, accelerates the data variation speed of pixel unit circuit 10.
The column drive circuit 11 also includes some bypass apparatus 37, and the bypass apparatus 37 are used to make the nothing of digital to analog converter 34
Effect, column data signal 13 is output as data signal, and each bypass apparatus 37 is respectively connecting to a row driver 36.
The structure of the column drive circuit 11 is as shown in Figure 10.
Embodiment eight：
The present embodiment is essentially identical with embodiment one, is particular in that：
The drive circuit 03 also includes horizontal drive circuit 12, and the horizontal drive circuit 12 produces pixel unit circuit 10
Row gating signal 14, the row gating signal 14 is used to drive the select lines 51 of pixel unit circuit 10.
The horizontal drive circuit 12 includes decoder 41, and the decoder 41 is used to decode the input signal after coding,
Make some or several row gating signals 14 effective.
The horizontal drive circuit 12 includes line driver 43, and the line driver 43 is used to strengthen the drive of row gating signal 14
Kinetic force, accelerates the gating speed of pixel unit circuit 10.
The structure of the horizontal drive circuit 12 is as shown in figure 11.
Embodiment nine：
The present embodiment is essentially identical with embodiment one, is particular in that：
The drive circuit 03 also includes horizontal drive circuit 12, and the horizontal drive circuit 12 produces pixel unit circuit 10
Row gating signal 14, the row gating signal 14 is used to drive the select lines 51 of pixel unit circuit 10.
The horizontal drive circuit 12 is used to produce including at least the second register group 23 that a group can shift forward or backwards
Row gating signal 14, the second trigger 42 that the second register group 23 is sequentially connected comprising R head and the tail, second triggering
Device 42 is exported to the connected trigger of the next one second in clock edge latch data, and R is the positive integer more than or equal to 1.
The horizontal drive circuit 12 includes line driver 43, and the line driver 43 is used to strengthen the drive of row gating signal 14
Kinetic force, accelerates the gating speed of pixel unit circuit 10.
The structure of the horizontal drive circuit 12 is as shown in figure 12.
Embodiment ten：
The present embodiment is essentially identical with embodiment one, is particular in that：
Also include pixel unit circuit 10, column drive circuit 11, horizontal drive circuit 12.The column drive circuit 11 produces row
Data-signal 13, horizontal drive circuit 12 produce row gating signal 14, and the column data signal 13 and row gating signal 14 pass through battle array
The form of row is connected to pixel unit circuit 10.
The structure of the horizontal drive circuit 12 is as shown in figure 12.
Embodiment 11：
The present embodiment is essentially identical with embodiment one, is particular in that：
The interface 04 is used to receive bit plane information and is input to drive circuit 03, and institute's bit planes are specific aobvious
Show that pixel gray level data in region have a data acquisition system of same bits position, the luma data is to characterize pixel light emission brightness journey
The data of degree, the bit is the weights with carry rules, and the accepting method is that parallel data signal or differential set are believed
Number.
Embodiment 12：
The present embodiment is essentially identical with embodiment one, is particular in that：
Temperature sensor and/or negative pressure controller are further comprises, the temperature sensor is used for the temperature of measuring circuit, institute
It is a kind of DC-DC transform controllers to state negative pressure controller, and for producing negative voltage, the negative voltage is a kind of less than zero level
Voltage.
In other embodiments, with relatively high-level known method, process, system, part and/or electricity have been described
Road, without details, to avoid unnecessarily obscuring each side of the disclosure.Embodiments described above illustrate many details with
Thorough understanding of the present invention is provided, but this is only intended to clearly illustrate the citing of present invention enforcement, and not to embodiment
Restriction.For those of ordinary skill in the art, other not similar shapes can also be made on the basis of the above description
The change or variation of formula, or the disclosure can be also put into practice without these details, there is no need to give all of embodiment
With exhaustion.And the obvious change thus extended out or among changing still in the protection domain of the invention.
Claims (19)
1. the silicon substrate display that a kind of digital-to-analogue fusion drives, it is characterised in that the silicon substrate display has included at least semiconductor
The pixel of silicon base and silicon substrate surface and the drive circuit being contained in silicon base and interface, the drive circuit is extremely
Less comprising Metal-Oxide Semiconductor field-effect transistor and at least two layers metal level；The pixel is in a particular display frame
Interior brightness is by the pixel in the output current of the display frame in or the amplitude of voltage and the pixel in the defeated of the display frame in
The duty ratio of time for going out curtage is together decided on；The display frame is included and leads to pixel grey scale information in particular display area
Cross the interface to transmit by the drive circuit to the process of the pixel；The particular display frame is further divided into some
Subframe, the subframe is included the particular subset of pixel grey scale information in particular display area by the interface by the drive
The process of dynamic circuit transmission to the pixel；The drive circuit is being particularly shown the defeated of frame in comprising for producing the pixel
Go out the circuit of the amplitude and the pixel of curtage in the duty ratio of time of the output current or voltage of the display frame in.
2. silicon substrate display according to claim 1, it is characterised in that the pixel by pixel top layer luminescent substance
Actively luminous or by pixel top layer reflecting material is reflected light source luminous so as to be formed, and the luminescent substance is one
Kind produce the material of electro optical phenomenon by curtage is applied, the reflecting material for it is a kind of by apply electric current or
Voltage and reflect or through the material of light.
3. silicon substrate display according to claim 2, it is characterised in that the promising organic electroluminescence devices of the luminescent substance
Or LED device；The reflecting material is liquid crystal.
4. silicon substrate display according to claim 1, it is characterised in that the drive circuit includes pixel unit circuit,
, including at least output transistor and pixel electrode, the output transistor is by conductive through hole output electricity for the pixel unit circuit
, to pixel electrode, the pixel electrode is the male or female of pixel for stream or voltage.
5. silicon substrate display according to claim 4, it is characterised in that the pixel unit circuit also comprising select lines,
Data wire and electric capacity, when select lines is first state, the magnitude of voltage on data wire is stored to electric capacity；When select lines is second
The magnitude of voltage on data wire during state, when keeping select lines the last time to be first state on electric capacity.
6. silicon substrate display according to claim 4, it is characterised in that the pixel unit circuit also has compensation work(
Energy, the compensation function contains the output current or voltage that reduce or eliminate different pixels electrode by output transistor and lights
The impact of material inconsistency, the inconsistency includes threshold voltage, electron mobility, equivalent resistance, equivalent capacity, electric current
Decline, brightness decay.
7. silicon substrate display according to claim 1, it is characterised in that the drive circuit includes column drive circuit, institute
State column drive circuit is used to produce column data signal including at least D the first register group that can be shifted forward or backwards, described
Column data signal is used for driving data line, and each described first register group includes M the first trigger being sequentially connected from beginning to end,
First trigger is exported to the connected trigger of the next one first in clock edge latch data, and D and M is all more than or waits
In 1 positive integer.
8. silicon substrate display according to claim 7, it is characterised in that first trigger is arranged by buffer output
Data-signal, the buffer is controlled by more new signal, when more new signal is first state, the output letter of D*M buffer
Number be updated to the output signal of D*M the first trigger respectively, when more new signal is the second state, D*M buffer it is defeated
Go out signal and keep constant.
9. silicon substrate display according to claim 7, it is characterised in that the column drive circuit includes at least M level
First level conversion of the column data signal is second electrical level by converter, the level translator, and the second electrical level is high
In or less than the first level.
10. silicon substrate display according to claim 7, it is characterised in that the column drive circuit also includes some digital-to-analogues
Converter, the digital to analog converter by column data signal by two or more than two digital signal transition be analog signal, institute
State data signal and only have two kinds of determination states, the analog signal in given range can consecutive variations, the digital to analog converter
Species include voltage scaling type, binary weighting resistor-type, the trapezoidal types of R-2R, binary current source type, Segmented electrical
Stream rudder type.
11. silicon substrate displays according to claim 10, it is characterised in that each digital to analog converter all passes through transistor
Switches set is connected to X row pixels, and the transistor switch group is effective in synchronization only one of which transistor switch, the crystal
Pipe switch is made up of one or more Metal-Oxide Semiconductor field-effect transistors, and X is the integer more than or equal to 1.
12. silicon substrate displays according to claim 10, it is characterised in that each digital to analog converter is connected to one
Row driver, the row driver is used to strengthen the driving force of column data signal, accelerates the data variation of pixel unit circuit
Speed.
13. silicon substrate displays according to claim 10, it is characterised in that the column drive circuit also includes some bypasses
Device, the bypass apparatus are used to make digital to analog converter invalid, and column data signal output is data signal.
14. silicon substrate displays according to claim 1, it is characterised in that the drive circuit also includes horizontal drive circuit,
The horizontal drive circuit produces the row gating signal of pixel unit circuit, and the row gating signal is used to drive pixel unit circuit
Select lines.
15. silicon substrate displays according to claim 14, it is characterised in that the horizontal drive circuit includes decoder, institute
Decoder is stated for the input signal after coding to be decoded, makes some or several row gating signals effective.
16. silicon substrate displays according to claim 14, it is characterised in that the horizontal drive circuit can including at least one group
The the second register group for shifting forward or backwards is used to produce row gating signal, the second register group comprising R from beginning to end according to
Secondary the second connected trigger, second trigger is exported to the connected next one second in clock edge latch data and triggered
Device, R is the positive integer more than or equal to 1.
17. silicon substrate displays according to claim 14, it is characterised in that the horizontal drive circuit includes line driver,
The line driver is used to strengthen the driving force of row gating signal, accelerates the gating speed of pixel unit circuit.
18. silicon substrate displays according to claim 1, it is characterised in that the interface is used to receive bit plane information simultaneously
Drive circuit is input to, institute's bit planes are the data that pixel gray level data have same bits position in particular display area
Set, the luma data is the data for characterizing pixel light emission brightness level, and the bit is the weights with carry rules,
The accepting method is parallel data signal or differential set signal.
19. silicon substrate displays according to claim 1, it is characterised in that further comprises temperature sensor and/or negative pressure control
Device processed, the temperature sensor is used for the temperature of measuring circuit, and the negative pressure controller is a kind of DC-DC transform controllers, is used
In negative voltage is produced, the negative voltage is a kind of voltage less than zero level.
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