CN1881012B - Bistable chiral alignment type liquid crystal display and drive method thereof - Google Patents
Bistable chiral alignment type liquid crystal display and drive method thereof Download PDFInfo
- Publication number
- CN1881012B CN1881012B CN2005100779153A CN200510077915A CN1881012B CN 1881012 B CN1881012 B CN 1881012B CN 2005100779153 A CN2005100779153 A CN 2005100779153A CN 200510077915 A CN200510077915 A CN 200510077915A CN 1881012 B CN1881012 B CN 1881012B
- Authority
- CN
- China
- Prior art keywords
- picture
- pixel
- time
- bistable state
- palm property
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 45
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 13
- 230000000694 effects Effects 0.000 claims description 52
- 239000000758 substrate Substances 0.000 claims description 46
- 239000013078 crystal Substances 0.000 claims description 37
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 20
- 238000013459 approach Methods 0.000 claims description 15
- 239000002178 crystalline material Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 241000023320 Luma <angiosperm> Species 0.000 description 1
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- 229930182558 Sterol Natural products 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003098 cholesteric effect Effects 0.000 description 1
- 235000012000 cholesterol Nutrition 0.000 description 1
- 230000000215 hyperchromic effect Effects 0.000 description 1
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 150000003432 sterols Chemical class 0.000 description 1
- 235000003702 sterols Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Abstract
The invention discloses a double-steady state hand-opposite nematic LCD and driving method, which is characterized by the following: each pixel of double-steady state hand-opposite nematic LCD contains at least one transistor as pixel switch of input line voltage and capacitance to reserve pixel voltage, which updates image into plural secondary images with secondary images driving the displayed dielectric corresponding condition according to different driving conditions.
Description
Technical field
The invention relates to that a kind of bistable state is to palm property nematic LCD and driving method thereof; Particularly relevant for a kind of bistable state that adopts active driving method to palm property nematic LCD.
Background technology
Cholesteric liquid crystal material (Cholesteric liquid crystal) is a kind of reflective material, and can provide hyperchromic is the grey-tone image of color.This cholesteric liquid crystal material also can be used as bistable material, can have very wide visual angle (view angle) after particular design, and need not use extra parts such as polarization sheet, colored filter.So cholesteric liquid crystal material can provide the display of high resolving power, the high color quality of image, low-power and low price.
Cholesteric liquid crystal material has two kinds of stable states, and wherein the reflection attitude (planarstate) of cholesteric liquid crystal material has stability under zero effect electric field, and it can reflect the incident light of specific wavelength; The scattering states of cholesteric liquid crystal material (focal conic state) also has stability under zero effect electric field, it has light scattering.The homeotropic alignment state of cholesteric liquid crystal material (homeotropic state) only more than high critical voltage, as 30 volts, just can reach homeotropic alignment, and the cholesteric liquid crystal material under this state has light transmission.Cholesteric liquid crystal material has in addition from the opticofacial winking reflex attitude of homeotropic alignment replying state (relax) (transient planar state), when its high voltage when the homeotropic alignment state lowers fast or voltage reduce to a certain magnitude of voltage when following, cholesteric liquid crystal material promptly reflects attitude from the homeotropic alignment replying state in a flash to this.Above-mentioned homeotropic alignment state and opticofacial winking reflex attitude are all instantaneous, are not to be stable state, but can be used as the intermediate state of stable state transfer (state transition).
In the application of cholesteric liquid crystal material, manyly put forth effort on the reflection attitude of switching this liquid crystal material and the driving method of scattering states is developed.Known bistable state uses the direct driving method of section pixel or the multitask type of drive of passive matrix pixel to come display frame to palm property nematic LCD, the multitask type of drive of passive matrix pixel wherein, for many years in order to reach the fast driving effect, and the distinctive character of palm property nematic crystal (bistable chrial nematicliquid crystal) is developed several different driving methods at the cholesterol bistable state, the tired driving method etc. that increases that for example dynamic drive method that provided of United States Patent (USP) No. 5748277 " dynamic drive method of bistable liquid crystal display and device thereof (Dynamic DriveMethod and Apparatus for a Bistable Liquid Crystal Display) ", or United States Patent (USP) No. 6204835 " the tired formula two-phase driving method (Culmulative Two Phase Drive Scheme for BistableCholesteric Reflective Display) that increases of bistable cholesteric sterol reflected displaying device " is provided.Yet, in the restriction that drives, make the difficult improvement such as resolution, dynamic menu and display quality of bistable state to palm property nematic LCD based on passive matrix.
Moreover, PHILIPS Co. provides a kind of dynamic drive method in its United States Patent (USP) No. 6703995 " bistable state is to palm property nematic LCD and driving method thereof ", to drive the active-matrix bistable state to palm property nematic LCD, in order to reach the special waveform of dynamic drive method, it adopts the pixel structure of 5T1C, and in order to control the transistor of this framework, increase a lot of controlling signal, it is complicated that so design causes cost increase, the pixel structure design of drive system, and then reduce fine ratio of product.Moreover pixel structure has a plurality of transistors and electric capacity, makes pixel inner opening rate reduce, and influences display quality.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of bistable state to palm property nematic LCD, it is adopted the 1T1C pixel structure and drives active bistable state to palm property nematic LCD, can reduce the component count in the pixel, reduce and drive cost and improve yield, improve pixel inner opening rate simultaneously, can promote display quality.
Another object of the present invention is to provide a kind of bistable state to the active driving method of palm property nematic LCD, it is divided into a plurality of subframes with a picture to be updated, corresponding specific respectively drive waveforms makes bistable state to the particular state of palm property nematic crystal in correspondence.
For achieving the above object, bistable state provided by the invention comprises palm property nematic LCD:
One first substrate has one first first type surface;
A plurality of row electrodes and a plurality of column electrode are formed at matrix-style on this first first type surface of this first substrate;
One second substrate has one second first type surface this first first type surface relatively;
Community electrode is formed at this second first type surface of this second substrate, so that this common electrode these row electrode and column electrodes relatively;
One bistable state is to palm property nematic liquid crystalline material layer, between this first substrate and this second substrate, wherein corresponding each this row electrode of this liquid crystal material layer and column electrode infall constitute a pixel, this pixel forms a pixel capacitance, one end of this pixel capacitance is connected in this common electrode, and the other end constitutes a pixel electrode;
A plurality of sweep traces are formed on this first first type surface of this first substrate, and this sweep trace correspondence one of each bar is listed as this row electrode;
A plurality of signal line are formed on this first first type surface of this first substrate, this column electrode of the corresponding delegation of this signal line of each bar;
At least one switch module is formed at each this row electrode and this column electrode infall, for the driving switch of doing this corresponding pixel, this switch module comprises a conducting approach and and controls end points to control the conducting of this conducting approach, this control end points is connected to corresponding this sweep trace, this conducting approach comprises one first end points and one second end points, and this first end points is connected to this signal line and this second end points is connected to corresponding this pixel electrode;
The one scan line drive, supplying at least, the one scan signal gives this sweep trace of each bar;
One signal line driver is supplied at least one data signals and is given this signal line of each bar; And
One picture controller, in order to store and to handle image information, with the input of this image information and control this signal driver with the output voltage signal, simultaneously, the input controlling signal is controlled this scan line driver with the output scanning signal, again simultaneously, input controlling signal to a power supply unit makes the required various voltages of this power supply unit output to control the effect voltage swing of each this pixel;
Wherein, the picture of this display is divided into picture, a picture and a picture for the third time for the second time for the first time, this for the first time picture and for the third time the pixel effect voltage of picture be indivedual voltages of deciding, and this second time picture pixel effect voltage decide according to desiring to write image information, wherein this first time picture and for the third time picture indivedual decide voltage and provide by this power supply unit, the pixel effect voltage that reaches this of picture is provided by this signal line driver second time.
Described bistable state is to palm property nematic LCD, wherein also comprise a plurality of capacitance components, be formed on this first first type surface of this first substrate, corresponding this pixel of each this capacitance component, an end of this capacitance component is connected to corresponding this pixel electrode.
Bistable state provided by the invention also comprises palm property nematic LCD:
One first substrate has one first first type surface;
A plurality of row electrodes and a plurality of column electrode are formed at matrix-style on this first first type surface of this first substrate;
One second substrate has one second first type surface this first first type surface relatively;
Community electrode is formed at this second first type surface of this second substrate, so that this common electrode these row electrode and column electrodes relatively;
One bistable state is to palm property nematic liquid crystalline material layer, between this first substrate and this second substrate, wherein corresponding each this row electrode of this liquid crystal material layer and column electrode infall constitute a pixel, this pixel forms a pixel capacitance, one end of this pixel capacitance is connected in this common electrode, and the other end constitutes a pixel electrode;
A plurality of sweep traces are formed on this first first type surface of this first substrate, and this sweep trace correspondence one of each bar is listed as this row electrode;
A plurality of signal line are formed on this first first type surface of this first substrate, this column electrode of the corresponding delegation of this signal line of each bar;
At least one switch module is formed at each this row electrode and this column electrode infall, for the driving switch of doing this corresponding pixel, this switch module comprises a conducting approach and and controls end points to control the conducting of this conducting approach, this control end points is connected to corresponding this sweep trace, this conducting approach comprises one first end points and one second end points, and this first end points is connected to this signal line and this second end points is connected to corresponding this pixel electrode;
The one scan line drive, supplying at least, the one scan signal gives this sweep trace of each bar;
One signal line driver is supplied at least one data signals and is given this signal line of each bar; And
One picture controller, in order to store and to handle image information, with the input of this image information and control this signal driver with the output voltage signal, simultaneously, the input controlling signal is controlled this scan line driver with the output scanning signal, again simultaneously, input controlling signal to a power supply unit makes the required various voltages of this power supply unit output to control the effect voltage swing of each this pixel;
Wherein, the picture of this display is divided into picture and a picture for the second time for the first time, this, pixel effect voltage of picture was certain voltage second time, and this first time picture pixel effect voltage decide according to desiring to write image information, wherein this second time should decide voltage and answering device to provide of picture by this power supply merit, the pixel effect voltage that reaches this of picture is provided by this signal line driver first time.
Described bistable state is to palm property nematic LCD, wherein also clad several capacitance components, be formed on this first first type surface of this first substrate, corresponding this pixel of each this capacitance component, an end of this capacitance component is connected to corresponding this pixel electrode.
Described bistable state is to palm property nematic LCD, and wherein this switch module comprises a transistor.
Described bistable state is to palm property nematic LCD, and wherein this switch module comprises a transistor.
Described bistable state is to palm property nematic LCD, and wherein aforementioned bistable state comprises cholesteric liquid crystal molecule to palm property nematic liquid crystalline material layer.
Described bistable state is to palm property nematic LCD, and wherein aforementioned bistable state comprises cholesteric liquid crystal molecule to palm property nematic liquid crystalline material layer.
Described bistable state is to palm property nematic LCD, and wherein this power supply unit supplies respectively that individual voltages is given this signal line driver, sweep trace drives device and this common electrode.
Described bistable state is to palm property nematic LCD, and wherein this power supply unit supplies respectively that individual voltages is given this signal line driver, sweep trace drives device and this common electrode.
Described bistable state is to palm property nematic LCD, wherein also comprise a selector switch and connect this signal line driver output end and this power supply unit as input voltage and be connected these signal line and export as voltage, wherein this selector switch is selected input voltage and is conducted to these signal line by control pin input controlling signal.
Described bistable state is to palm property nematic LCD, wherein also comprise selector switch system and connect this signal line driver output end and this power supply unit as input voltage and be connected these signal line and export as voltage, wherein this selector switch is by control pin input controlling signal selection input voltage and conduct to these signal line.
Described bistable state is to palm property nematic LCD, and wherein the controlling signal of this control pin is provided by this picture controller.
Described bistable state is to palm property nematic LCD, and wherein the controlling signal of this control pin is provided by this picture controller.
Bistable state provided by the invention is to palm property nematic LCD driving method, and the picture of foregoing liquid crystal display is divided into picture, a picture and a picture for the third time for the second time for the first time, and this method comprises:
Drive this of picture, this bistable state of resetting becomes the homeotropic alignment state to the palm property nematic crystal first time, to eliminate the recall info in the pixel;
Drive this of picture, the image information that desire is upgraded writes aforementioned pixel second time; And
Drive this picture for the third time, the effect voltage of aforementioned pixel is made zero, so that this bistable state returns back to the stable state that writes this image information correspondence to palm property nematic crystal.
Described bistable state is to palm property nematic LCD driving method, and the step of wherein aforementioned driving this of picture can drive whole this of picture first time simultaneously first time.
Described bistable state is to palm property nematic LCD driving method, wherein aforementioned driving this for the third time the step of picture can drive whole this picture for the third time simultaneously.
Described bistable state is to palm property nematic LCD driving method, and the step of wherein aforementioned driving this of picture is to drive this of picture in scan-type writing information mode second time second time.
Described bistable state is to palm property nematic LCD driving method, wherein aforementioned driving this for the third time the step of picture be the effect voltage of aforementioned pixel to be made zero with the scan-type writing mode.
Described bistable state is to palm property nematic LCD driving method, wherein this second time picture writing information be one data.
Described bistable state is to palm property nematic LCD driving method, wherein this second time picture writing information be the data of plural character.
Bistable state provided by the invention is to palm property nematic LCD driving method, and the picture of foregoing liquid crystal display is divided into picture and a picture for the second time for the first time, and this method also comprises:
Drive this of picture, the image information that desire is upgraded writes aforementioned pixel first time; And
Drive this of picture second time, the effect voltage of aforementioned pixel is made zero, so that this bistable state returns back to the stable state that writes this image information correspondence to palm property nematic crystal.
Described bistable state is to palm property nematic LCD driving method, and the step of wherein aforementioned driving this of picture is to drive this of picture in scan-type writing information mode first time first time.
Described bistable state is to palm property nematic LCD driving method, and the step of wherein aforementioned driving this of picture is with the scan-type writing mode effect voltage of aforementioned pixel to be made zero second time.
Described bistable state is to palm property nematic LCD driving method, and the step of wherein aforementioned driving this of picture can drive whole this of picture second time simultaneously second time.
Described bistable state wherein also comprises reverse function to palm property nematic LCD driving method, and writing information through bit reversal and/or change driving voltage, is write in the aforementioned pixel to keep same information.
Described bistable state wherein also comprises reverse function to palm property nematic LCD driving method, and writing information through bit reversal and/or change driving voltage, is write in the aforementioned pixel to keep same information.
Described bistable state is to palm property nematic LCD driving method, and wherein aforementioned bistable state comprises cholesteric liquid crystal molecule to palm property nematic crystal.
Described bistable state is to palm property nematic LCD driving method, and wherein aforementioned bistable state comprises cholesteric liquid crystal molecule to palm property nematic crystal.
According to above-mentioned, bistable state of the present invention only need use the 1T1C pixel structure just can realize drive waveforms of the present invention to palm property nematic LCD, can reduce number of parts, reduces to drive cost and improve yield, improve pixel inner opening rate simultaneously, display quality is promoted.
Description of drawings
Fig. 1 is the driving circuit synoptic diagram of bistable state of the present invention to a preferred embodiment of palm property nematic LCD.
When Fig. 2 A reflects the attitude data for desiring to write, the pixel effect voltage of each subframe correspondence.
Fig. 2 B when desiring to write the scattering states data, the pixel effect voltage of each subframe correspondence.
When Fig. 3 A reflects the attitude data for writing with reverse function, the pixel effect voltage of each subframe correspondence.
Fig. 3 B is when writing the scattering states data with reverse function, the pixel effect voltage of each subframe correspondence.
When Fig. 4 A reflects the attitude data for desiring to write, the pixel effect voltage of each subframe correspondence.
Fig. 4 B when desiring to write the scattering states data, the pixel effect voltage of each subframe correspondence.
When Fig. 5 A reflects the attitude data for desiring to write, the sequential chart of drive waveforms.
Fig. 5 B when desiring to write the scattering states data, the sequential chart of drive waveforms.
When Fig. 6 A reflects the attitude data for desiring to write, the sequential chart of inversion driving waveform.
Fig. 6 B when desiring to write the scattering states data, the sequential chart of inversion driving waveform.
Embodiment
The present invention mainly provides a kind of bistable state to palm property nematic LCD and active driving method thereof.This bistable state comprises at least one transistor to each pixel of palm property nematic LCD, as the switch of line of input voltage to this pixel.This pixel also can comprise an electric capacity, as the voltage that stores this pixel.This bistable state comprises the image element circuit of driving display to the panel of palm property nematic LCD, data signals enters a selector switch by data bus, this selector switch by the controlling signal end select the input end signal formed by at least one fixed voltage and data signals wherein a signal be output signal, as the capable voltage that drives palm property nematic crystal.Simultaneously, the common electrode of pixel other end system bestows suitable voltage, the stable state to palm property nematic crystal of control pixel.
Clearer and more definite, bistable state of the present invention is that pixel design is become the 1T1C framework to palm property nematic LCD, and 1T is the minimum driving component that traditional active-matrix LCD should possess, as addressing and non-addressing switch.This 1C is the passive component that traditional active-matrix LCD often possesses, as capacitance stable and the adjustment pixel, to reduce the drift of pixel voltage.
Moreover, bistable state of the present invention is a picture to be updated to be cut into a plurality of subframes drive respectively to the active LCD drive method of palm property nematic LCD, the drive waveforms that it is corresponding specific respectively makes the particular state of palm property nematic crystal driving in correspondence.
Bistable state of the present invention will be described in detail as follows by following specific embodiment conjunction with figs. palm property nematic LCD and driving method thereof.
Fig. 1 be according to the present invention bistable state to the driving circuit synoptic diagram of a preferred embodiment of palm property nematic LCD.In this preferred embodiment, bistable state of the present invention comprises that to palm property nematic LCD 1 one first substrate 10, one second substrate 20, a bistable state are to palm property nematic liquid crystalline material layer (not shown), several column electrode (not shown), plural column electrode (not shown), community electrode 202, a plurality of sweep traces Y
1, Y
2, Y
3...., Y
n, a plurality of signal line X
1, X
2, X
3, X
4...., X
m, a plurality of switch modules 300, a plurality of capacitance component 304, one scan line drive 40, a signal line driver 50, a selector switch 60, a picture controller 70 and a voltage source of supply 80.This first substrate 10 has one first first type surface 100, and these row electrodes and column electrode (not shown) are to be formed on this first first type surface of this first substrate 10 100 with matrix-style.This second substrate 20 has one second first type surface, 200 relative these first first type surfaces 100, and this common electrode 202 is formed at this second first type surface 200 of this second substrate 20, so that these common electrode 202 relative these row electrode and column electrodes.This bistable state is to palm property nematic liquid crystalline material layer, cholesteric liquid crystal material layer for example, between this first substrate 10 and this second substrate 20, wherein corresponding each this row electrode of this liquid crystal material layer and each this column electrode infall constitute a pixel 30, this pixel 30 forms a pixel capacitance 302, and an end of this pixel capacitance 302 is connected in this common electrode 202, and the other end constitutes a pixel electrode.These sweep traces Y
1, Y
2, Y
3...., Y
nAnd these signal line X
1, X
2, X
3, X
4...., X
mBe on this first first type surface 100 that the arranged mode is formed at this first substrate 10 jointly, this sweep trace correspondence one of each bar is listed as this row electrode, and this column electrode of the corresponding delegation of this signal line of each bar.Each this switch module 300, for example transistor is formed at each this row electrode and each this column electrode infall, for the driving switch of doing this corresponding pixel 30.This switch module 300 comprises a conducting approach 300a and and controls end points 300b to control the conducting of this conducting approach 300a, this control end points 300b is connected to corresponding this sweep trace, this conducting approach 300a comprises one first end points 300c and one second end points 300d, and this first end points 300c is connected to this signal line and this second end points is connected to corresponding this pixel electrode.These capacitance components 304 are formed on this first first type surface 100 of this first substrate 10, each these capacitance component 304 corresponding these pixel 30, one end of this capacitance component 304 is connected to corresponding this pixel electrode, but and other end ground connection or be connected to one just or a negative voltage.The other end of this capacitance component 304 can cooperate common electrode voltage and be connected to negative voltage to reduce the ceiling voltage of system, reduces this switch module 300 as the transistorized voltage that bears in this pixel 30 simultaneously, to keep this characteristics of transistor degree of stability.This capacitance component 304 is as capacitance stable and this pixel 30 that adjustment is corresponding, to reduce the drift of pixel voltage.This scan line driver 40 is supplied at least, and the one scan signal gives this sweep trace of each bar.At least one data signals of these signal line driver 50 supplies is given this signal line of each bar.This selector switch 60 connects these signal line driver 50 output terminals and this power supply unit 80 as input voltage and be connected these signal line X
1, X
2, X
3, X
4,, X
mExport as voltage.This selector switch 60 selects input voltage to be provided by this power supply unit 80 or provided by this signal line driver 50 by control pin (not shown) input controlling signal, and conducts to these signal line X
1, X
2, X
3, X
4.., X
mThe controlling signal of this control pin of this selector switch 60 is provided by this picture controller 70.This power supply unit 80 is supplied individual voltages respectively and is given this scan line driver 40, this signal line driver 50, this selector switch 60 and this common electrode 202.This picture controller 70 is in order to store and to handle image information, with the output of this image information and control this signal driver 50 with the output voltage signal, simultaneously, the output controlling signal is controlled this scan line driver 40 with the output scanning signal, again simultaneously, the output controlling signal makes the required various voltages of these power supply unit 80 outputs to control the effect voltage swing of each this pixel to this power supply unit 80.
In this preferred embodiment, this bistable state is a picture to be updated system to be divided into a plurality of subframes drive in regular turn to the driving method of palm property nematic LCD 1.Corresponding other the specific drive condition of each subframe is to drive state in correspondence with bistable state to palm property nematic crystal.For example, one picture to be updated of this display 1 can be divided into a picture for the first time, one picture and a picture for the third time for the second time, wherein this, picture was that bistable state is urged to homeotropic alignment state (Homeotropic state) to the palm property nematic crystal first time, this state is not a stable state, purpose is with the replacement of the information in the pixel (reset), to eliminate the recall info in the pixel, this, picture was that the image information that institute's desire is upgraded is write in the corresponding pixel second time, as this information is monochromatic data, then corresponding one writes the position, as this information is luma data, then corresponding a plurality of positions that write.This for the third time picture be that the voltage that display pannel is required makes zero, being about to all pixels makes zero, so that the power consumption of display pannel reduces to zero, and after picture is opened for the third time, because bistable state is to the characteristic of palm property nematic crystal itself, this bistable state can return back to the stable state of writing information correspondence to palm property nematic crystal, i.e. the stable state of picture correspondence for the second time.So, this for the first time picture and for the third time the pixel effect voltage of picture be indivedual voltages of deciding, this, pixel effect voltage system of picture decided according to desiring to write image information second time, and this first time picture and for the third time picture indivedual decide voltage and provide by this power supply unit 80, this, pixel effect voltage of picture was provided by this signal line driver 50 second time.In other words, this for the first time picture, for the second time picture and this for the third time the data voltage of picture by these selector switch 60 controls.
Fig. 2 A show desire to write the reflection attitude (planar state, P) during data, picture, picture and the corresponding respectively pixel effect voltage of picture for the third time for the second time for the first time.Fig. 5 A is the drive waveforms sequential chart of corresponding diagram 2A, is divided into three subframes during the picture of each this pixel 30, the scanning voltage V of each subframe
ScanTransistor in scanning in regular turn and the on-pixel 30, at this moment, data voltage writes in the pixel 30 in regular turn.More specifically, during first time picture, by this power supply unit 80 supply certain voltage V
HTo this selector switch 60, conduct to all signal line X by this selector switch 60 again
1, X
2, X
3, X
4..., X
m, so that data voltage V to be provided
HGive driven pixel 30, and during first time picture, can drive all pixels 30 simultaneously, saving the frame updating time, and this common electrode 202 this for the first time during the picture, for the second time during the picture and this for the third time during the picture all by these power supply unit 80 supply 0 volt of voltages (0Vcom).So for the first time during the picture, pixel effect voltage is V at this
H, this bistable state is urged to this homeotropic alignment state to palm property nematic crystal.Then, during second time picture, be depressed into this selector switch 60, conduct to selecteed signal line by this selector switch 60 again, so that corresponding pixel 30 data voltages to be provided by this signal line driver 50 supplies 0 voltaism.For the second time during the picture, this scan line driver 40 writes in the selecteed pixel 30 with the image information that desire is upgraded to drive these pixels 30 by the line sweep mode at this.At this moment, for the second time during the picture, pixel effect voltage is 0 volt at this, to should bistable state to the reflection attitude of palm property nematic crystal (planar state, P).During picture for the third time, be depressed into this selector switch 60 by this power supply unit 80 supplies 0 voltaism, conduct to all signal line X by this selector switch 60 again
1, X
2, X
3, X
4...., X
m, give driven pixel 30 so that 0 volt of data voltage to be provided.For the third time during the picture, can drive pixel 30 at this, perhaps drive all pixels 30 simultaneously, to save the time of frame update by the line sweep mode.At this for the third time during the picture, the voltage of keeping of pixel 30 is made zero, just the voltage of keeping with display pannel makes zero, so that this display pannel reaches not power consumption fully behind frame updating.After this will be kept voltage during picture for the third time and make zero, the bistable states in the pixel 30 were promptly replied (relax) writes the image information correspondence during the picture to this second time reflection attitude stable state to palm property nematic crystal.
Fig. 2 B show desire to write scattering states (focal conic state, Fc) during data, picture, picture and the corresponding respectively pixel effect voltage of picture for the third time for the second time for the first time.It is during second time picture that the drive waveforms sequential chart of Fig. 5 B corresponding diagram 2B, itself and Fig. 2 A do not exist together, by this signal driver 50 supply voltage V
FcVolt conducts to selecteed signal line by this selector switch 60 again to this selector switch 60, gives corresponding pixel 30 so that data voltage to be provided., to drive these pixels 30, write in the selecteed pixel 30 equally for the second time during the picture at this with the image information that desire is upgraded by the line sweep mode.At this moment, for the second time during the picture, pixel effect voltage is V at this
FcVolt, to should bistable state to the scattering states of palm property nematic crystal (focal conic state, Fc).For the first time during the picture with picture for the third time during, this selector switch 60 is delivered to the drive waveforms of signal line and mode that this scan line driver 40 drives pixels 30 is same as Fig. 2 A.So when during the picture for the third time with after the keeping voltage and make zero of display pannel, the bistable states in the pixel 30 promptly return back to the scattering states stable state that writes the image information correspondence this second time during the picture to palm property nematic crystal.
On the other hand, bistable state of the present invention also has reverse function to palm property nematic LCD 1, to keep bistable state stablizing palm property nematic crystal characteristic.This reverse function be with writing information through bit reversal and/or the change driving voltage, write in the pixel to keep same information.
Fig. 6 A when desiring to write reflection attitude data, picture, the picture and the inversion driving waveform sequential chart of picture correspondence for the third time for the second time for the first time.The pixel effect voltage of Fig. 3 A corresponding diagram 6A.When drive waveforms is reversed, various input voltages are changed, promptly during reached second time picture during the picture first time, the input voltage of this common electrode 202 was V
H, and during first time picture, conduct to all signal line X
1, X
2, X
3, X
4...., X
mVoltage be 0 volt, pixel effect voltage is-V
H, make that the bistable state in the pixel 30 is driven to the homeotropic alignment state to palm property nematic crystal, with the information in the replacement pixel 30.During second time picture, the voltage that conducts to selected signal line is V
HVolt, pixel effect this moment voltage is 0 volt, reflection attitude data can be write in the corresponding pixel 30.During picture for the third time, the input voltage of this common electrode 202 is 0 volt, conducts to all signal line X
1, X
2, X
3, X
4...., X
mVoltage also be 0 volt, promptly pixel is kept voltage during the picture for the third time and makes zero at this, to reduce the consumption of display pannel power, the bistable states in the pixel 30 then return back to the reflection attitude stable state of the data of writing to palm property nematic crystal.
Fig. 6 B when desiring to write the scattering states data, picture, the picture and the inversion driving waveform of picture correspondence for the third time for the second time for the first time.The pixel effect voltage of Fig. 3 B corresponding diagram 6B.When drive waveforms is reversed, various input voltages are changed, promptly during reached second time picture during the picture first time, the input voltage of this common electrode 202 was V
H, and during first time picture, conduct to all signal line X
1, X
2, X
3, X
4...., X
mVoltage be 0 volt, pixel effect voltage is-V
H, make that the bistable state in the pixel 30 is driven to the homeotropic alignment state to palm property nematic crystal, with the information in the replacement pixel 30.During second time picture, the voltage that conducts to selected signal line is (V
H-V
Fc) volt, pixel effect this moment voltage is-V
FcVolt can write the scattering states data in the corresponding pixel 30.During picture for the third time, the input voltage of this common electrode 202 is 0 volt, conducts to all signal line X
1, X
2, X
3, X
4...., X
mVoltage also be 0 volt, promptly pixel is kept voltage during the picture for the third time and makes zero at this, to reduce the consumption of display pannel power, the bistable states in the pixel 30 then return back to the scattering states stable state of the data of writing to palm property nematic crystal.
On the other hand, one picture to be updated of this display 1 also can be divided into one for the first time picture and for the second time picture drive in regular turn, in the case, with bistable state to the reflection attitude of palm property nematic crystal as initial state, wherein the image information that this first time, picture upgraded institute's desire writes pixel to pursue the line sweep mode, its pixel effect voltage is decided according to desiring to write image information, and this is desired to write image information and comprises one the data or the data of plural character, be to provide by this signal line driver 50, this, picture made zero the display pannel required voltage second time, being about to all pixels makes zero, so that the power consumption of display pannel reduces to zero, this, pixel effect voltage of picture was certain voltage second time, answered device 80 to provide by this power supply merit.Moreover,, can drive pixel 30 or drive all pixels 30 simultaneously for the second time during the picture at this by the line sweep mode.
Fig. 4 A is that correspondence writes when reflecting the attitude data, pixel effect voltage interactively figure during reach second time picture during the picture first time, in Fig. 4 A, aforementioned bistable state is the reflection attitude to the initial state of palm property nematic crystal, be all 0 volt, so that aforementioned bistable state maintains original reflection attitude to palm property nematic crystal.Fig. 4 B is that correspondence is when writing the scattering states data, pixel effect voltage relationship figure during reach second time picture during the picture first time, in Fig. 4 B, aforementioned bistable state is the reflection attitude to the initial state of palm property nematic crystal, this is for the first time during the picture, pixel effect voltage is the Fc volt, so that aforementioned bistable state is urged to scattering states to palm property nematic crystal from this reflection attitude, and be somebody's turn to do during the picture second time, pixel effect voltage is 0 volt, so that aforementioned bistable state maintains original reflection attitude to palm property nematic crystal.
The above is specific embodiments of the invention only, is not in order to limit claim of the present invention; All other do not break away from the equivalence of being finished under the disclosed spirit and changes or modification, all should be included in the claim of application.
Claims (20)
1. a bistable state is to palm property nematic LCD driving method, and the picture of foregoing liquid crystal display is divided into picture, a picture and a picture for the third time for the second time for the first time, and this method comprises:
Drive whole this of picture simultaneously, this bistable state of resetting becomes the homeotropic alignment state to palm property nematic crystal, to eliminate the recall info in the pixel first time;
Drive this of picture in scan-type writing information mode, the image information that desire is upgraded writes aforementioned pixel second time, wherein this second time picture writing information comprise one the data or the data of plural character; And
With simultaneously or the scan-type writing mode drive this picture for the third time, the effect voltage of aforementioned pixel is made zero, so that this bistable state returns back to the stable state that writes this image information correspondence to palm property nematic crystal.
2. a bistable state is to palm property nematic LCD driving method, with state bistable state to the reflection attitude of palm property nematic crystal as initial state, the picture of foregoing liquid crystal display is divided into picture and a picture for the second time for the first time, this method comprises:
Drive this of picture in scan-type writing information mode, the image information that desire is upgraded writes aforementioned pixel first time, wherein this first time picture writing information comprise one the data or the data of plural character; And
With simultaneously or the scan-type writing mode drive this second time of picture, the effect voltage of aforementioned pixel is made zero, so that this bistable state returns back to the stable state that writes this image information correspondence to palm property nematic crystal.
3. bistable state as claimed in claim 1 wherein also comprises reverse function to palm property nematic LCD driving method, and writing information through bit reversal and/or change driving voltage, is write in the aforementioned pixel to keep same information.
4. bistable state as claimed in claim 2 wherein also comprises reverse function to palm property nematic LCD driving method, and writing information through bit reversal and/or change driving voltage, is write in the aforementioned pixel to keep same information.
5. bistable state as claimed in claim 1 is to palm property nematic LCD driving method, and wherein aforementioned bistable state comprises cholesteric liquid crystal molecule to palm property nematic crystal.
6. bistable state as claimed in claim 2 is to palm property nematic LCD driving method, and wherein aforementioned bistable state comprises cholesteric liquid crystal molecule to palm property nematic crystal.
7. a bistable state is to palm property nematic LCD, and it comprises:
One first substrate has one first first type surface;
A plurality of row electrodes and a plurality of column electrode are formed at matrix-style on this first first type surface of this first substrate;
One second substrate has one second first type surface this first first type surface relatively;
Community electrode is formed at this second first type surface of this second substrate, so that this common electrode these row electrode and column electrodes relatively;
One bistable state is to palm property nematic liquid crystalline material layer, between this first substrate and this second substrate, wherein corresponding each this row electrode of this liquid crystal material layer and column electrode infall constitute a pixel, this pixel forms a pixel capacitance, one end of this pixel capacitance is connected in this common electrode, and the other end constitutes a pixel electrode;
A plurality of sweep traces are formed on this first first type surface of this first substrate, and this sweep trace correspondence one of each bar is listed as this row electrode;
A plurality of signal line are formed on this first first type surface of this first substrate, this column electrode of the corresponding delegation of this signal line of each bar;
At least one switch module is formed at each this row electrode and this column electrode infall, for the driving switch of doing this corresponding pixel, this switch module comprises a conducting approach and and controls end points to control the conducting of this conducting approach, this control end points is connected to corresponding this sweep trace, this conducting approach comprises one first end points and one second end points, and this first end points is connected to this signal line and this second end points is connected to corresponding this pixel electrode;
The one scan line drive, supplying at least, the one scan signal gives this sweep trace of each bar;
One signal line driver is supplied at least one data signals and is given this signal line of each bar; And
One picture controller, in order to store and to handle image information, with the input of this image information and control this signal driver with the output voltage signal, simultaneously, the input controlling signal is controlled this scan line driver with the output scanning signal, again simultaneously, input controlling signal to a power supply unit makes the required various voltages of this power supply unit output to control the effect voltage swing of each this pixel;
Wherein, the picture of this display is divided into a picture for the first time, one picture and a picture for the third time for the second time, this, picture drove with simultaneous system first time, this, picture drove in scan-type writing information mode second time, this for the third time picture with simultaneously or the scan-type writing mode drive, this for the first time picture and for the third time the pixel effect voltage of picture be indivedual voltages of deciding, and this second time picture pixel effect voltage decide according to desiring to write image information, this is desired to write image information and comprises one the data or the data of plural character, wherein this first time picture and for the third time picture indivedual decide voltage and provide by this power supply unit, the pixel effect voltage that reaches this of picture is provided by this signal line driver second time.
8. bistable state as claimed in claim 7 is to palm property nematic LCD, wherein also comprise a plurality of capacitance components, be formed on this first first type surface of this first substrate, corresponding this pixel of each this capacitance component, an end of this capacitance component is connected to corresponding this pixel electrode.
9. a bistable state is to palm property nematic LCD, and it comprises:
One first substrate has one first first type surface;
A plurality of row electrodes and a plurality of column electrode are formed at matrix-style on this first first type surface of this first substrate;
One second substrate has one second first type surface this first first type surface relatively;
Community electrode is formed at this second first type surface of this second substrate, so that this common electrode these row electrode and column electrodes relatively;
One bistable state is to palm property nematic liquid crystalline material layer, between this first substrate and this second substrate, wherein corresponding each this row electrode of this liquid crystal material layer and column electrode infall constitute a pixel, this pixel forms a pixel capacitance, one end of this pixel capacitance is connected in this common electrode, and the other end constitutes a pixel electrode;
A plurality of sweep traces are formed on this first first type surface of this first substrate, and this sweep trace correspondence one of each bar is listed as this row electrode;
A plurality of signal line are formed on this first first type surface of this first substrate, this column electrode of the corresponding delegation of this signal line of each bar;
At least one switch module is formed at each this row electrode and this column electrode infall, for the driving switch of doing this corresponding pixel, this switch module comprises a conducting approach and and controls end points to control the conducting of this conducting approach, this control end points is connected to corresponding this sweep trace, this conducting approach comprises one first end points and one second end points, and this first end points is connected to this signal line and this second end points is connected to corresponding this pixel electrode;
The one scan line drive, supplying at least, the one scan signal gives this sweep trace of each bar;
One signal line driver is supplied at least one data signals and is given this signal line of each bar; And
One picture controller, in order to store and to handle image information, with the input of this image information and control this signal driver with the output voltage signal, simultaneously, the input controlling signal is controlled this scan line driver with the output scanning signal, again simultaneously, input controlling signal to a power supply unit makes the required various voltages of this power supply unit output to control the effect voltage swing of each this pixel;
Wherein, the picture of this display is divided into picture and a picture for the second time for the first time, and with bistable state to the reflection attitude of palm property nematic crystal as a primary state, this, picture drove in scan-type writing information mode first time, this for the second time picture with simultaneously or the scan-type writing mode drive, this, pixel effect voltage of picture was certain voltage second time, and this first time picture pixel effect voltage decide according to desiring to write image information, this, image information that writes of picture comprised one the data or the data of plural character first time, wherein this second time should decide voltage and answering device to provide of picture by this power supply merit, the pixel effect voltage that reaches this of picture is provided by this signal line driver first time.
10. bistable state as claimed in claim 9 is to palm property nematic LCD, wherein also clad several capacitance components, be formed on this first first type surface of this first substrate, corresponding this pixel of each this capacitance component, an end of this capacitance component is connected to corresponding this pixel electrode.
11. bistable state as claimed in claim 7 is to palm property nematic LCD, wherein this switch module comprises a transistor.
12. bistable state as claimed in claim 9 is to palm property nematic LCD, wherein this switch module comprises a transistor.
13. bistable state as claimed in claim 7 is to palm property nematic LCD, wherein aforementioned bistable state comprises cholesteric liquid crystal molecule to palm property nematic liquid crystalline material layer.
14. bistable state as claimed in claim 9 is to palm property nematic LCD, wherein aforementioned bistable state comprises cholesteric liquid crystal molecule to palm property nematic liquid crystalline material layer.
15. bistable state as claimed in claim 7 is to palm property nematic LCD, wherein this power supply unit supplies respectively that individual voltages is given this signal line driver, sweep trace drives device and this common electrode.
16. bistable state as claimed in claim 9 is to palm property nematic LCD, wherein this power supply unit supplies respectively that individual voltages is given this signal line driver, sweep trace drives device and this common electrode.
17. bistable state as claimed in claim 7 is to palm property nematic LCD, wherein also comprise a selector switch and connect this signal line driver output end and this power supply unit as input voltage and be connected these signal line and export as voltage, wherein this selector switch is selected input voltage and is conducted to these signal line by control pin input controlling signal.
18. bistable state as claimed in claim 9 is to palm property nematic LCD, wherein also comprise selector switch system and connect this signal line driver output end and this power supply unit as input voltage and be connected these signal line and export as voltage, wherein this selector switch is by control pin input controlling signal selection input voltage and conduct to these signal line.
19. bistable state as claimed in claim 17 is to palm property nematic LCD, wherein the controlling signal of this control pin is provided by this picture controller.
20. bistable state as claimed in claim 18 is to palm property nematic LCD, wherein the controlling signal of this control pin is provided by this picture controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100779153A CN1881012B (en) | 2005-06-13 | 2005-06-13 | Bistable chiral alignment type liquid crystal display and drive method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100779153A CN1881012B (en) | 2005-06-13 | 2005-06-13 | Bistable chiral alignment type liquid crystal display and drive method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1881012A CN1881012A (en) | 2006-12-20 |
| CN1881012B true CN1881012B (en) | 2010-11-10 |
Family
ID=37519267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100779153A Active CN1881012B (en) | 2005-06-13 | 2005-06-13 | Bistable chiral alignment type liquid crystal display and drive method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1881012B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592546B (en) * | 2009-06-03 | 2014-06-18 | 胜华科技股份有限公司 | Electronic paper driving method |
| CN102402032A (en) * | 2010-09-16 | 2012-04-04 | 财团法人工业技术研究院 | Drive method of active matrix bistable liquid crystal display |
| CN102063870A (en) * | 2010-11-19 | 2011-05-18 | 友达光电股份有限公司 | Driving method of bistable display |
| TW201234332A (en) * | 2011-02-01 | 2012-08-16 | Ind Tech Res Inst | Bi-stable active matrix display apparatus and method for driving display panel thereof |
| CN103247266A (en) * | 2012-02-14 | 2013-08-14 | 东莞万士达液晶显示器有限公司 | Bi-stable-state displayer connected with cholesteric LCD |
| CN112180628A (en) * | 2020-09-11 | 2021-01-05 | 山东蓝贝思特教装集团股份有限公司 | Liquid crystal writing device, local erasing method and display method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6052103A (en) * | 1996-09-30 | 2000-04-18 | Kabushiki Kaisha Toshiba | Liquid-crystal display device and driving method thereof |
| CN1348166A (en) * | 2000-10-06 | 2002-05-08 | 夏普株式会社 | Active matrix liquid crystal display device and its driving method |
| CN1366204A (en) * | 2001-01-17 | 2002-08-28 | 胜华科技股份有限公司 | Reflection-type coupled single-layer bistable color LCD |
| CN1398393A (en) * | 2000-10-05 | 2003-02-19 | 皇家菲利浦电子有限公司 | Bistable chiral nematic liquid crystal display and method of driving same |
-
2005
- 2005-06-13 CN CN2005100779153A patent/CN1881012B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6052103A (en) * | 1996-09-30 | 2000-04-18 | Kabushiki Kaisha Toshiba | Liquid-crystal display device and driving method thereof |
| CN1398393A (en) * | 2000-10-05 | 2003-02-19 | 皇家菲利浦电子有限公司 | Bistable chiral nematic liquid crystal display and method of driving same |
| CN1348166A (en) * | 2000-10-06 | 2002-05-08 | 夏普株式会社 | Active matrix liquid crystal display device and its driving method |
| CN1366204A (en) * | 2001-01-17 | 2002-08-28 | 胜华科技股份有限公司 | Reflection-type coupled single-layer bistable color LCD |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-70729A 2005.03.17 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1881012A (en) | 2006-12-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4359631B2 (en) | Method and apparatus for driving liquid crystal display device | |
| US7948461B2 (en) | Image display device | |
| US8466861B2 (en) | Liquid crystal display device and display method | |
| CN1636236A (en) | Liquid crystal device operable in two modes | |
| CN1881012B (en) | Bistable chiral alignment type liquid crystal display and drive method thereof | |
| JP5346379B2 (en) | Pixel circuit and display device | |
| KR20010109468A (en) | Liquid crystal display device | |
| EP1772848B1 (en) | Liquid crystal display device and method of driving such a display device | |
| US20040246388A1 (en) | Liquid crystal display and driving method thereof | |
| JP2007047349A (en) | Electrooptic apparatus, driving method and electronic equipment | |
| JP2006235450A (en) | Electrooptic apparatus, driving method and electronic equipment | |
| JP3948914B2 (en) | Liquid crystal display element | |
| JP2006171679A (en) | Liquid crystal display and driving method therefor | |
| JP3705436B2 (en) | Display device and display method, and liquid crystal drive circuit and liquid crystal drive method | |
| JP4248268B2 (en) | Liquid crystal display | |
| US7379059B2 (en) | Display apparatus, display method, liquid crystal driver circuit and liquid crystal driving method | |
| JP2007047350A (en) | Electrooptic apparatus, driving method and electronic equipment | |
| JPWO2006114859A1 (en) | Liquid crystal display | |
| CN100447853C (en) | Gray tone driving method for steady-state | |
| JP2003202544A (en) | Method for driving liquid crystal display device | |
| JP4650133B2 (en) | Electro-optical device, driving method, and electronic apparatus | |
| CN1982962A (en) | Liquid crystal display | |
| KR100864972B1 (en) | Apparatus of reset driving liquid crystal display and method of reset using the same | |
| KR20020036527A (en) | Liquid Crystal Display Apparatus for high-speeding of a bend state initially and driving apparatus and method therefor | |
| JPH0442653B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190116 Address after: 3, 11th floor, 85 Zhongxiao East Road, Zhongzheng District, Taipei City, Taiwan, China Patentee after: Group Creative Knowledge Technology Co.,Ltd. Address before: Hsinchu County, Taiwan, China Patentee before: Industrial Technology Research Institute Effective date of registration: 20190116 Address after: No. 5 Ditanggang Road, New Town, Tainan City, Taiwan, China Patentee after: IRIS OPTRONICS CO.,LTD. Address before: 3, 11th floor, 85 Zhongxiao East Road, Zhongzheng District, Taipei City, Taiwan, China Patentee before: Group Creative Knowledge Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20190917 Address after: 173 Houxing Road Section, Zhongyu District, Taoyuan City, Taiwan, China Patentee after: Taiwan Yiwu Co.,Ltd. Address before: No. 5 Ditanggang Road, New Town, Tainan City, Taiwan, China Patentee before: IRIS OPTRONICS CO.,LTD. Effective date of registration: 20190917 Address after: 1501 Capital Centre, 151 Gloucester Road, Wanchai District, Hong Kong, China Patentee after: Ruiyin Investment Co.,Ltd. Address before: 173 Houxing Road Section, Zhongyu District, Taoyuan City, Taiwan, China Patentee before: Taiwan Yiwu Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191226 Address after: Room 333, floor 3, Part 4, building 1, No. 2001, Yanggao North Road, China (Shanghai) free trade zone, Pudong New Area, Shanghai Patentee after: Shanghai Hongxia Photoelectric Technology Co.,Ltd. Address before: 1501 Capital Centre, 151 Gloucester Road, Wanchai District, Hong Kong, China Patentee before: Ruiyin Investment Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230704 Address after: No. 160, No. thirteen GUI Ren Road, Guen Ren District, Tainan, Taiwan, China 3F-3 Patentee after: IRIS OPTRONICS CO.,LTD. Address before: Room 333, 3rd floor, Part 4, building 1, No. 2001, Yanggao North Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 200120 Patentee before: Shanghai Hongxia Photoelectric Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |