CN101435937A - Cholesterol liquid crystal display device and drive method thereof - Google Patents
Cholesterol liquid crystal display device and drive method thereof Download PDFInfo
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- CN101435937A CN101435937A CNA200710186749XA CN200710186749A CN101435937A CN 101435937 A CN101435937 A CN 101435937A CN A200710186749X A CNA200710186749X A CN A200710186749XA CN 200710186749 A CN200710186749 A CN 200710186749A CN 101435937 A CN101435937 A CN 101435937A
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Abstract
The invention discloses a cholesterin liquid crystal display device and a driving method thereof. The cholesterin liquid crystal display device comprises a cholesterin type liquid crystal display and a capacitance sensor; the cholesterin liquid crystal display is provided with a first baseplate and a second baseplate which are arranged in opposite directions; a cholesterin liquid crystal layer is clamped between the first baseplate and the second baseplate, wherein the cholesterin liquid crystal layer is at least provided with a first display state and a second display state; and the first display state is virtually unequal to the second display state. The capacitance sensor senses the display state of the cholesterin liquid crystal layer, outputs a first sensing result or a second sensing result and stores the first sensing result or the second sensing result in a memorizer.
Description
Technical field
The present invention relates to a kind of display equipment, particularly a kind of cholesterin liquid-crystal display device and driving method thereof.
Background technology
LCD (LCD) has many advantages, and for example volume is little, in light weight, low power consumption or the like.Therefore, LCD has been applied to electronic products such as hand-held computer, mobile phone widely.That is LCD Technology is just continuing towards field development light, thin and that be easy to carry about with one.
The touch-control liquid crystal display device is applied to the display device screen as mobile computer, personal computer usually, especially as on the portable electronic products such as personal digital assistant.Wherein some flat-panel screens is the location sensing escope, when stylus directly contacts display pannel, but the position of this this stylus of location sensing escope sensing.
For instance, known electric resistance touch-control location sensing escope comprises electric resistance touch-control panel and stylus.When stylus directly or entity when contacting the electric resistance touch-control panel of this electric resistance touch-control location sensing escope, electric resistance touch-control panel receives and comes from touching of stylus, so that the position of electric resistance touch-control location sensing escope sensing stylus.
Traditional touch-control liquid crystal display device is single input type LCD device by integrated touch panel (touch panel) with display panels (LCD panel).And, touch panel is arranged between eyes of user and the display panels, to reach the display that possesses hand-write input function.Yet incident light through touch panel, causes partial reflection earlier, causes the user to see and dazzles light (glaringlight), and then cause the image contrast of touch-control liquid crystal display device to reduce.
For the image contrast reduction that light causes is dazzled in solution, United States Patent (USP) US 6,982, disclose another kind of touch-control liquid crystal display device for No. 432 and comprise combination of touch control formula panel and display panels, and display panels is arranged between eyes of user and the touch panel, reaches the display that possesses hand-write input function.
Fig. 1 is the diagrammatic cross-section that shows traditional touch-control liquid crystal display device.In Fig. 1, traditional touch-control liquid crystal display device comprises touch panel 4 and display panels 3A, and display panels 3A is arranged between user and the touch panel 4.Display panels 3A comprise colorized optical filtering laminar substrate 31 have electrode layer 32 thereon, transparency carrier 36 have transparent electrode layer 35 thereon and scintilla dispersion type liquid crystal layer 34 sealing 33 between colorized optical filtering laminar substrate 31 and transparency carrier 36.
Touch panel 4 comprises that electrode 41 is arranged on the transparency carrier 36, and electrode 43 is arranged on the substrate 44, tool gap between electrode 41 and the electrode 43, and by sealing 42 involutions.Yet hand-write input function and Presentation Function are independently reached by touch panel and display panels respectively, and need two-layer independently panel construction at least, and its one-piece construction and complex process cause manufacturing cost to improve.
Moreover, proposing another kind of known touch-control liquid crystal display device in IDW meeting Fuji Xerox company in 2004 makes with light input type LCD, import by the back side by optical input device, need additional light source as the input media, be difficult for using, and the light that need add detecting layer causes complex structure, so ease of use is low and manufacturing cost is high.In addition, other has known touch-control liquid crystal display to use the incident light source of positive input, does not need extra light detecting layer.Yet, still need use additional light source as the input media, so its ease of use is still low.
Summary of the invention
In view of this, the invention provides a kind of cholesterin liquid-crystal display device, utilize the pressure change cholesteric liquid crystal molecule to arrange, cholesteric liquid crystal molecule is arranged decision capacitance and light reflectivity, have bistable characteristic with the cholesteric liquid crystal molecule arrangement, it is had concurrently show and input function.
The present invention also provides a kind of cholesterin liquid-crystal display device, comprise: cholesterin liquid-crystal display comprises first substrate and the second substrate subtend setting, insert and put cholesteric liquid crystal layer therebetween, wherein this cholesteric liquid crystal layer has first show state and second show state at least, and this first show state is not equal to this second show state in fact; And capacitance sensor, the show state of this cholesteric liquid crystal layer of sensing, and export first sensing result or second sensing result, be stored in storer.
In addition, the invention provides another kind of cholesterin liquid-crystal display device, comprise: cholesterin liquid-crystal display has a plurality of zones, each zone comprises first substrate and the second substrate subtend setting, insert and put cholesteric liquid crystal layer therebetween, wherein each zone has first show state and second show state at least, and this first show state is not equal to this second show state in fact; And capacitance sensor, each show state in each zone of sensing, and export first sensing result or second sensing result, be stored in storer.
The present invention provides a kind of cholesterin liquid-crystal display device in addition, comprise: cholesterin liquid-crystal display, have a plurality of zones, each zone comprises first substrate and the second substrate subtend setting, insert and put cholesteric liquid crystal layer therebetween, wherein this cholesteric liquid crystal layer has first show state and second show state at least, and this first show state is not equal to this second show state in fact; Driver module drives this cholesterin liquid-crystal display, makes each zone present this first show state or this second show state; Capacitance sensor, this each regional show state of sensing, and export first sensing result or second sensing result, be stored in storer.
The present invention provides a kind of driving method of cholesterin liquid-crystal display device again, comprising: a kind of cholesterin liquid-crystal display device is provided, and wherein this capacitance sensor cooperates driver module; To this cholesterin liquid-crystal display,, and store this capacitance by this driver module output capacitance sensing voltage waveform in this storer for the capacitance of this this cholesteric liquid crystal layer of capacitance sensor sensing; And work as the capacitance range that this capacitance belongs to burnt awl attitude TEXTURE STATE, then this capacitance sensor is exported first sensing result; If this capacitance belongs to the capacitance range of this plane attitude TEXTURE STATE, then this capacitance sensor is exported second sensing result.
The present invention provides a kind of driving method of cholesterin liquid-crystal display device again, comprise: cholesterin liquid-crystal display device is provided, this capacitance sensor wherein, cooperate this driver module, this driver module is exported a capacitance sensing voltage waveform, to the first area in these a plurality of zones, for first capacitance of this this first area of capacitance sensor sensing, this capacitance sensor is exported this first capacitance to this storer, this first capacitance of this memory storage; Export first voltage waveform to this first area by this driver module, show this first show state; Export this capacitance sensing voltage waveform to this first area by this driver module, for second capacitance of this this first area of capacitance sensor sensing, this capacitance sensor is exported this second capacitance to this storer, this second capacitance of this memory storage; If this first capacitance equals this second capacitance, then this first area is this first show state originally, and then this capacitance sensor is exported this first sensing result to this storer, this first sensing result of this memory storage; And if this first capacitance is not equal to this second capacitance, then this first area is this second show state originally, then this capacitance sensor is exported second sensing result to this storer, this second sensing result of this memory storage, then, export second voltage waveform by this driver module,, make reduction become this second show state to this first area.
For the features and advantages of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below:
Description of drawings
Fig. 1 is the diagrammatic cross-section that shows traditional touch-control liquid crystal display device;
Fig. 2 is the diagrammatic cross-section that shows according to the cholesterol type LCD device of the embodiment of the invention;
Fig. 3 A and 3B show the molecules align synoptic diagram of plane attitude texture (planar texture state) with the burnt awl attitude texture (focal conic texture state) of cholesterol liquid crystal respectively;
Fig. 4 be show cholesterol type LCD under the impressed voltage by the synoptic diagram that concerns of voltage of changing mutually between plane attitude texture and the burnt awl attitude texture and reflectivity;
Fig. 5 A and 5B show the plane attitude texture of cholesterol liquid crystal and the diagrammatic cross-section of the capacitance value measuring principle of burnt awl attitude texture respectively; And
Fig. 6 is the block schematic diagram that shows according to the cholesterol type LCD device of the embodiment of the invention.
Description of reference numerals
Known portions (Fig. 1)
3A～display panels; 4～touch panel;
31～colorized optical filtering laminar substrate; 32～electrode layer;
33～sealing; 34～scintilla dispersion type liquid crystal layer;
35～transparent electrode layer; 36～transparency carrier;
41～electrode; 42～sealing;
43～electrode; 44～substrate.
This case part (Fig. 2～6)
100～cholesterol type LCD; 110～the first substrates;
120～the first electrodes; 130～liquid crystal layer;
140～the second electrodes; 150～the second substrates;
310～infrabasal plate; 320～upper substrate;
330～absorption layer; 350～liquid crystal layer;
LI～incident light; LR～reflected light;
610～cholesterol type LCD; 620～line control unit;
630～row controller; 640～input media;
650～driver module; 660～capacitance sensor;
670～storer.
Embodiment
The cholesterin liquid-crystal display device of the embodiment of the invention, utilize the pressure change cholesteric liquid crystal molecule to arrange, cholesteric liquid crystal molecule is arranged decision capacitance and light reflectivity, has bistable principle with the cholesteric liquid crystal molecule arrangement, make the cholesterol liquid crystal of display mediums, have the detecting medium of detecting handwriting input data concurrently, cholesterin liquid-crystal display is had concurrently show and input function.
Fig. 2 is the diagrammatic cross-section that shows according to the cholesterol type LCD device of the embodiment of the invention.See also Fig. 2, cholesterol type LCD 100 comprises first substrate 110 and the 150 subtend settings of second substrate, inserts and puts cholesteric liquid crystal layer 130 therebetween.Cholesterol type LCD 100 has single area or a plurality of zone, wherein each corresponding one or more pixel in zone of this cholesterin liquid-crystal display.
Perhaps, cholesterol type LCD 100 is active cholesterol type LCD, comprises the array that a plurality of pixel constitutes.Each pixel of active cholesterol type LCD comprises thin film transistor (TFT) and storage capacitors.Liquid crystal layer 130 is a cholesterol liquid crystal, and tool plane attitude texture and burnt awl attitude texture bistable state.Perhaps, liquid crystal layer can be a stable twisted nematic liquid crystal that contains chiral dope.After liquid crystal layer is stressed, the ordered state of its liquid crystal molecule is changed into second state (for example plane attitude texture) by first state (for example burnt awl attitude texture), liquid crystal layer 130 tool first capacitance (for example Cf) under first state wherein, and liquid crystal layer tool second capacitance (for example Cp) under second state, and the first capacitance Cf is not equal to the second capacitance Cp in fact.
At least have bistable state because cholesteric liquid crystal molecule is arranged, behind the update displayed picture, power supply is removed, still can keep display frame, so be fit to be used for making Electronic Paper and e-book.
Fig. 3 A and 3B show the molecules align synoptic diagram of plane attitude texture with the burnt awl attitude texture of cholesterol liquid crystal respectively.In Fig. 3 A and 3B, cholesterol type LCD comprises that upper substrate 320, infrabasal plate 310, absorption layer 330 are arranged at the back side of infrabasal plate 310, reach liquid crystal layer 350 between upper and lower base plate.At least have bistable state because cholesteric liquid crystal molecule is arranged, during for plane attitude texture for example, liquid crystal molecule consistance ground reflects incident light LI in original state, and reflected light LR shows bright attitude, as shown in Figure 3A.Along with impressed voltage increases, liquid crystal molecule conversion coking awl attitude texture, liquid crystal molecule shows dark attitude with incident light LI scattering, shown in Fig. 3 B.
Fig. 4 be show cholesterol type LCD under the impressed voltage by the synoptic diagram that concerns of voltage of changing mutually between plane attitude texture and the burnt awl attitude texture and reflectivity.The original state of liquid crystal molecule can be plane attitude texture or burnt awl attitude texture, along with voltage is cumulative, the ordered state of liquid crystal molecule can change coking awl attitude texture by plane attitude texture, or bores attitude texture by Jiao and be transformed into plane attitude texture, as the conversion between voltage V1, V2, V3, the V4 among Fig. 4.
According to the embodiment of the invention, liquid crystal layer is tool first capacitance (for example Cf) under this first state, and this liquid crystal layer tool second capacitance (for example Cp) under this second state, and this first capacitance Cf is not equal to this second capacitance Cp in fact.By measuring the capacitance variations between capacitance Cf and the capacitance Cp, can know the display specific region after being subjected to impressed pressure, the state of liquid crystal layer molecule is for the principle of operation foundation of cholesterol type LCD.
Fig. 5 A and 5B show the plane attitude texture of cholesterol liquid crystal and the diagrammatic cross-section of the capacitance value measuring principle of burnt awl attitude texture respectively.By relatively low voltage is provided, 1～5V for example, this voltage can be for the capacitance that measures liquid crystal state of living in, the unlikely metamorphosis that causes between phase and phase.By this voltage signal is provided, cause the induced charge of different liquid crystal, and then measure capacitance Cp and Cf by capacitance sensor, be shown in respectively among Fig. 5 A and the 5B.According to a preferred embodiment of the invention, the capacitance Cp of plane attitude texture is 2.9nF, and the capacitance Cf of burnt awl attitude texture is 5.2nF.
Fig. 6 is the block schematic diagram that shows according to the cholesterol type LCD device of the embodiment of the invention.See also Fig. 6, a kind of cholesterol type LCD device, comprise that cholesterol type LCD 610 has first substrate and the second substrate subtend setting, insert and put cholesteric liquid crystal layer therebetween, wherein this cholesteric liquid crystal layer has first show state and second show state at least, and this first show state is not equal to this second show state in fact.Input media 640 is bestowed pressure in this cholesterin liquid-crystal display 610, makes the show state of this cholesteric liquid crystal layer bore the attitude TEXTURE STATE by this Jiao, becomes this plane attitude TEXTURE STATE.The picture of cholesterol type LCD 610 shows by line control unit 620 and row controller 630 provides display frame information.The show state of capacitance sensor 660 sensing cholesteric liquid crystal layers, and export first sensing result or second sensing result, be stored in storer 670.Driver module 650 provides this cholesterin liquid-crystal display one voltage waveform, to upgrade the show state of this cholesterol type LCD, becomes this Jiao and bores the attitude TEXTURE STATE.According to a preferred embodiment of the invention, storer 670 is built in cholesterin liquid-crystal display 610 in being, perhaps storer 670 is built in driver module 650 or capacitance sensor 660 in being.Moreover capacitance sensor 660 can be selected built-in in driver module 650.
Another embodiment of the present invention sample attitude is a kind of driving method of cholesterin liquid-crystal display device.When cholesterin liquid-crystal display is single area or has discrete zone, the noiseless effect of electric capacity to each other, wherein this capacitance sensor cooperates driver module, and export a capacitance sensing voltage waveform to this cholesterin liquid-crystal display by this driver module, for the capacitance of this this cholesteric liquid crystal layer of capacitance sensor sensing, and store this capacitance in this storer.When this capacitance belongs to the capacitance range of burnt awl attitude TEXTURE STATE, then this capacitance sensor is exported first sensing result; When this capacitance belongs to the capacitance range of this plane attitude TEXTURE STATE, then this capacitance sensor is exported second sensing result.
According to another embodiment of the present invention sample attitude, when cholesterin liquid-crystal display is the pel array of multizone, when there is disturbing effect in electric capacity to each other, wherein this capacitance sensor cooperates this driver module, and export a capacitance sensing voltage waveform by this driver module, to the first area in these a plurality of zones, for first capacitance of this this first area of capacitance sensor sensing, this capacitance sensor is exported this first capacitance to this storer, this first capacitance of this memory storage.Then, export first voltage waveform to this first area, show this first show state by this driver module.Then, export this capacitance sensing voltage waveform to this first area by this driver module, for second capacitance of this this first area of capacitance sensor sensing, this capacitance sensor is exported this second capacitance to this storer, this second capacitance of this memory storage.If this first capacitance equals this second capacitance, then this first area is this first show state originally, and then this capacitance sensor is exported this first sensing result to this storer, this first sensing result of this memory storage; If this first capacitance is not equal to this second capacitance, then this first area is this second show state originally, then this capacitance sensor is exported second sensing result to this storer, this second sensing result of this memory storage, then, export second voltage waveform by this driver module,, make reduction become this second show state to this first area.
Cholesterol type LCD device of the present invention can be by following control method operation.At first, with the video data of handwriting input first action (for example reseting (RESET)) refresh display panel.More particularly, utilize Drive and Control Circuit, export the voltage waveform of specific renewal pixel status, each pixel of display pannel all is updated to first state (state 1), as the warming-up exercise before the handwriting input.Then, with handwriting input second action (for example writing (WRITE)), carry out handwriting input for the user.More particularly, the user can use any hard tip, and for example handwriting input directly on the display pannel surface, is carried out in the nail tip.Then, with handwriting input the 3rd action (for example sensing and memory (SENSE+MEMORY)), the video data of detecting and stored user handwriting input.More particularly, utilize Drive and Control Circuit,, detect its state of living at each pixel of display pannel.Method for detecting is as follows: at first at each pixel of display pannel, with the voltage waveform of the specific detecting pixel capacitance value of Drive and Control Circuit output, and the voltage waveform of this detecting pixel capacitance value possesses the function of correct detecting pixel status in the shortest time.After detecting pixel state of living in, it is stored in the storer, then at next pixel, repeat above-mentioned action, up to the detecting and the storage of the state of finishing whole pixels, so finish the detecting and the storage of first picture.The user can repeat the action of number, carries out repeatedly the handwriting input of picture, and the number of pages size is decided by memory size.
Then, with handwriting input the 4th action (for example reading (READ)), read the video data of handwriting input.More particularly, utilize Drive and Control Circuit, set up the reading picture of display picture, if the user is the video data of handwriting input before will reading, and first picture for example then can click the specific region of display pannel, enter the reading picture, this picture can interior all data of display-memory.The user can click first picture, drives the data of control circuit according to first picture in the storer then, and the driving display panel shows first picture again.
The embodiment of the invention is means by detecting cholesterol liquid crystal capacitance variation, reach the function that has handwriting input and demonstration concurrently, hand-write input function and Presentation Function be can reach simultaneously with single cholesterol type LCD panel, luminous effect and low cost of manufacture do not dazzled so have.Moreover, arranging by the pressure change cholesteric liquid crystal molecule, the user can use any hard tip, and for example handwriting input directly at panel surface, is carried out in the nail tip, need not to use extra input light source, so ease of use height and low cost of manufacture.
Though the present invention discloses as above with preferred embodiment; so it is not in order to limit scope of the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when looking being as the criterion that accompanying Claim defines.
Claims (30)
1. cholesterin liquid-crystal display device comprises:
Cholesterin liquid-crystal display comprises first substrate and the second substrate subtend setting, insert and put cholesteric liquid crystal layer therebetween, wherein this cholesteric liquid crystal layer has first show state and second show state at least, and this first show state is not equal to this second show state in fact; And
Capacitance sensor, the show state of this cholesteric liquid crystal layer of sensing, and export first sensing result or second sensing result, be stored in storer.
2. cholesterin liquid-crystal display device as claimed in claim 1, wherein this cholesterin liquid-crystal display comprises a plurality of pel arrays.
3. cholesterin liquid-crystal display device as claimed in claim 2, wherein this cholesterin liquid-crystal display is the passive type cholesterin liquid-crystal display, wherein has first electrode on this first substrate along first direction, have second electrode on this second substrate, and first direction is vertical mutually with second direction along second direction.
4. cholesterin liquid-crystal display device as claimed in claim 2, wherein this cholesterin liquid-crystal display is active cholesterol type LCD.
5. cholesterin liquid-crystal display device as claimed in claim 4, wherein each pixel of active cholesterol type LCD comprises thin film transistor (TFT) and storage capacitors.
6. cholesterin liquid-crystal display device as claimed in claim 1, wherein this cholesteric liquid crystal layer is the twisted nematic liquid crystal that contains chiral dope.
7. cholesterin liquid-crystal display device as claimed in claim 1, wherein this of this cholesterol liquid crystal second show state is a plane attitude TEXTURE STATE, and this first show state of this cholesterol liquid crystal is burnt awl attitude TEXTURE STATE.
8. cholesterin liquid-crystal display device as claimed in claim 7 also comprises:
Input media is bestowed pressure in this cholesterin liquid-crystal display, makes the show state of this cholesteric liquid crystal layer bore the attitude TEXTURE STATE by this Jiao, becomes this plane attitude TEXTURE STATE; And
Driver module provides this cholesterin liquid-crystal display one first voltage waveform, to upgrade the show state of this cholesterol type LCD, becomes this Jiao and bores the attitude TEXTURE STATE.
9. cholesterin liquid-crystal display device as claimed in claim 1 also comprises driver module, provides this cholesterin liquid-crystal display one capacitance sensing voltage waveform, for the capacitance of this this cholesteric liquid crystal layer of capacitance sensor sensing.
10. cholesterin liquid-crystal display device as claimed in claim 9, wherein this capacitance sensor is built in this driver module in being.
11. cholesterin liquid-crystal display device as claimed in claim 9, wherein this storer is built in this driver module or this capacitance sensor in being.
12. a cholesterin liquid-crystal display device comprises:
Cholesterin liquid-crystal display has a plurality of zones, each zone comprises first substrate and the second substrate subtend setting, insert and put cholesteric liquid crystal layer therebetween, wherein each zone has first show state and second show state at least, and this first show state is not equal to this second show state in fact; And
Capacitance sensor, each show state in each zone of sensing, and export first sensing result or second sensing result, be stored in storer.
13. cholesterin liquid-crystal display device as claimed in claim 12, wherein each corresponding one or more pixel in zone of this cholesterin liquid-crystal display.
14. cholesterin liquid-crystal display device as claimed in claim 13, wherein this cholesterin liquid-crystal display is the passive type cholesterin liquid-crystal display, wherein has first electrode on this first substrate along first direction, have second electrode on this second substrate, and this first direction is vertical mutually with this second direction along second direction.
15. cholesterin liquid-crystal display device as claimed in claim 12, wherein this cholesterin liquid-crystal display is active cholesterin liquid-crystal display.
16. cholesterin liquid-crystal display device as claimed in claim 15, wherein each pixel of active cholesterol type LCD comprises thin film transistor (TFT) and storage capacitors.
17. cholesterin liquid-crystal display device as claimed in claim 12, wherein this cholesteric liquid crystal layer is one to contain the stable twisted nematic liquid crystal of chiral dope.
18. cholesterin liquid-crystal display device as claimed in claim 12, wherein this of this cholesterol liquid crystal second show state is a plane attitude TEXTURE STATE, and this first show state of this cholesterol liquid crystal is burnt awl attitude TEXTURE STATE.
19. cholesterin liquid-crystal display device as claimed in claim 18 also comprises:
Input media is bestowed pressure in this cholesterin liquid-crystal display, makes the show state of this cholesteric liquid crystal layer bore the attitude TEXTURE STATE by this Jiao, becomes this plane attitude TEXTURE STATE; And
Driver module provides this cholesterin liquid-crystal display one first voltage waveform, to upgrade the show state of this cholesterol type LCD, becomes this Jiao and bores the attitude TEXTURE STATE.
20. cholesterin liquid-crystal display device as claimed in claim 12 also comprises driver module, provides this cholesterin liquid-crystal display one capacitance sensing voltage waveform, for the capacitance of this this cholesteric liquid crystal layer of capacitance sensor sensing.
21. cholesterin liquid-crystal display device as claimed in claim 12, wherein this storer is built in these a plurality of zones of this cholesterin liquid-crystal display in being.
22. cholesterin liquid-crystal display device as claimed in claim 20, wherein this capacitance sensor is built in this driver module in being.
23. cholesterin liquid-crystal display device as claimed in claim 20, wherein this storer is built in this driver module or this capacitance sensor in being.
24. a cholesterin liquid-crystal display device comprises:
Cholesterin liquid-crystal display, have a plurality of zones, each zone comprises first substrate and the second substrate subtend setting, inserts and puts cholesteric liquid crystal layer therebetween, wherein each zone has first show state and second show state at least, and this first show state is not equal to this second show state in fact;
Driver module drives this cholesterin liquid-crystal display, makes each zone present this first show state or this second show state; And
Capacitance sensor, this each regional show state of sensing, and export first sensing result or second sensing result, be stored in storer.
25. cholesterin liquid-crystal display device as claimed in claim 24, wherein this storer is built in these a plurality of zones of this cholesterin liquid-crystal display in being.
26. cholesterin liquid-crystal display device as claimed in claim 24, wherein this capacitance sensor is built in this driver module in being.
27. cholesterin liquid-crystal display device as claimed in claim 24, wherein this storer is built in this driver module or this capacitance sensor in being.
28. cholesterin liquid-crystal display device as claimed in claim 24 also comprises input media, bestows pressure in arbitrary zone, makes this regional show state, by this first show state, becomes this second show state.
29. the driving method of a cholesterin liquid-crystal display device comprises:
A kind of cholesterin liquid-crystal display device as claimed in claim 1 is provided, and wherein this capacitance sensor cooperates driver module;
To this cholesterin liquid-crystal display,, and store this capacitance by this driver module output capacitance sensing voltage waveform in this storer for the capacitance of this this cholesteric liquid crystal layer of capacitance sensor sensing; And
When this capacitance belongs to the capacitance range of plane attitude TEXTURE STATE, then this capacitance sensor is exported second sensing result; If this capacitance belongs to the capacitance range of a burnt awl attitude TEXTURE STATE, then this capacitance sensor is exported first sensing result.
30. the driving method of a cholesterin liquid-crystal display device comprises:
One cholesterin liquid-crystal display device as claimed in claim 24 is provided, this capacitance sensor wherein, cooperate this driver module, this driver module output capacitance sensing voltage waveform, first area to these a plurality of zones, for first capacitance of this this first area of capacitance sensor sensing, this capacitance sensor is exported this first capacitance to this storer, this first capacitance of this memory storage;
Export first voltage waveform to this first area by this driver module, show this first show state;
Export this capacitance sensing voltage waveform to this first area by this driver module, for second capacitance of this this first area of capacitance sensor sensing, this capacitance sensor is exported this second capacitance to this storer, this second capacitance of this memory storage;
If this first capacitance equals this second capacitance, then this first area is this first show state originally, and then this capacitance sensor is exported first sensing result to this storer, this first sensing result of this memory storage; And
If this first capacitance is not equal to this second capacitance, then this first area is this second show state originally, then this capacitance sensor is exported second sensing result to this storer, this second sensing result of this memory storage, then, export second voltage waveform by this driver module,, make reduction become this second show state to this first area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710186749XA CN101435937A (en) | 2007-11-16 | 2007-11-16 | Cholesterol liquid crystal display device and drive method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710186749XA CN101435937A (en) | 2007-11-16 | 2007-11-16 | Cholesterol liquid crystal display device and drive method thereof |
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| CN101435937A true CN101435937A (en) | 2009-05-20 |
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| CNA200710186749XA Pending CN101435937A (en) | 2007-11-16 | 2007-11-16 | Cholesterol liquid crystal display device and drive method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091911A (en) * | 2011-10-28 | 2013-05-08 | 财团法人工业技术研究院 | Method and device for changing liquid crystal display layer pattern |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091911A (en) * | 2011-10-28 | 2013-05-08 | 财团法人工业技术研究院 | Method and device for changing liquid crystal display layer pattern |
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