CN1470045A - Double-sided viewable display with switchable transflector - Google Patents
Double-sided viewable display with switchable transflector Download PDFInfo
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- CN1470045A CN1470045A CNA018174213A CN01817421A CN1470045A CN 1470045 A CN1470045 A CN 1470045A CN A018174213 A CNA018174213 A CN A018174213A CN 01817421 A CN01817421 A CN 01817421A CN 1470045 A CN1470045 A CN 1470045A
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- 238000000034 method Methods 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 14
- 239000012769 display material Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229920002521 macromolecule Polymers 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 8
- 210000004276 hyalin Anatomy 0.000 claims 1
- 239000002344 surface layer Substances 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 230000000007 visual effect Effects 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 230000035772 mutation Effects 0.000 description 3
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- 230000003287 optical effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000010267 cellular communication Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
- G02F1/133555—Transflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133342—Constructional arrangements; Manufacturing methods for double-sided displays
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
A system and/or method for providing a LCD device (10) with a transflector portion that has a reflective state and a transparent state. Two transflector portions (12, 20) are provided to form a device with a double-sided display or one transflector portion (68) is employed to provide a display with a displaying state and a transparent state.
Description
Technical field
The present invention relates generally to display system, a kind of system and method with display screen of the translucent sheet parts that can select between reflection and pellucidity particularly is provided.
Background technology
LCDs (LCD) be normally used for such as on portable television, notebook computer, cell phone and other electronic equipments as display device.Conventional LCD comprises a plurality of LCD elements of the many row and columns of formation, and each LCD comprises a pixel electrode and a public electrode that wherein is distributed with the liquid crystal material part.In addition, conventional LCD has a reflective-mode, and it needs a pre-set minimum environmental light intensity, makes it that enough contrasts can be provided in display screen, for the beholder presents satisfied display effect.
More generally, conventional LCD has a stratiform combination, and it comprises a top polaroid, a top substrate, a top electrode, a liquid crystal, a default hearth electrode pattern or an array, a bottom substrate, a polaroid and a reverberator (translucent sheet (transflector)) at the bottom of one.Right-angle array each other between each polarizer axes presents a kind of orthogonality relation.The principle of work of LCD is being well-known in the art.Such principle is wherein arranged: when applying electric field, LCD can reduce by the transmittancy of a liquid crystal material thin layer and carry out work.
The LCD of many routines uses reflection or translucent parts on an opaque background that works during only at reflective condition.Some conventional LCD, for example some clock is controlled by a transparent background in transfer mode.Conventional LCD can only read on single face.Therefore, for example, close at display device when a equipment and not use, and informational needs can only come display message by second interchangeable display screen and control circuit thereof are provided when showing such as mobile phone.This second interchangeable display screen and subsidiary circuit thereof still all are restrictive dimensionally on cost.
Description of drawings
Fig. 1 is according to the synoptic diagram of a display surface of one aspect of the invention, two-sided display screen;
Fig. 2 according to one aspect of the invention, be in the front view of the portable communication device with two-sided display screen of open mode;
Fig. 3 shows the functional schematic of material content according to one aspect of the invention, the preceding display screen that is in the portable communication device shown in Figure 2 of open mode;
Fig. 4 according to one aspect of the invention, be in the front elevation of the tool shown in Figure 2 of closure state with the portable communication device of two-sided display screen;
Fig. 5 shows the functional schematic of material content according to one aspect of the invention, the back display screen that is in the portable communication device shown in Figure 2 of closure state;
Fig. 6 is the schematic block diagram according to the drive system of one aspect of the invention, adopts this drive system to drive two-sided display screen;
Fig. 7 according to one aspect of the invention, be in the synoptic diagram of the display surface of the single face display screen in the pellucidity;
Fig. 8 explanation is according to schematic block diagram one aspect of the invention, that be in the single face display screen shown in Figure 7 in the reflective condition;
Fig. 9 according to one aspect of the invention, be used in the front of two-sided display screen or the process flow diagram of a kind of specific process of the demonstration material on the back; With
Figure 10 is used to the process flow diagram that shows material or be provided at a kind of specific process of transparency window on the single face display screen according to one aspect of the invention, explanation.
DISCLOSURE OF INVENTION
The present invention relates to provide the translucent sheet parts with sub reflector state and pellucidity LCD equipment system and (or) a kind of method.Two translucent sheet parts can be used for forming an equipment that has two-sided display screen or the display screen of show state and pellucidity can be provided.Although the following description to one aspect of the invention relates generally to portable communication device, those of ordinary skills can understand and recognize, also can unite with other Display Realization types according to system of the present invention and/or method and realize.
Fig. 1 explanation is according to the side view block diagram of the two-sided visual display 10 of one aspect of the invention.Two-sided visual display 10 comprises the first translucent sheet parts 12 on first face that is positioned at LCD element 14 and is positioned at second translucent sheet parts 20 on second face of LCD element 14.First polaroid 13 is between the first translucent sheet parts 12 and LCD element 14 first, and second polaroid 18 is between the second translucent sheet parts 20 and LCD element 14 second.LCD element 14 is made of the liquid crystal layer 16 of the nematic phase distortion type of for example aligned twisted, and this liquid crystal layer is between first electrode 15 and second electrode 17.First electrode 15 and second electrode 17 all comprise the pattern or the array of a transparency electrode.First polaroid 13 and second polaroid 18 are used to X that sees through polaroid 13 and 18 and the surround lighting on the Y direction are carried out polarization.Polaroid is well-known in the nematic phase distortion (TN) of aligned twisted and the use in the LCD equipment (STN) to those skilled in the art, therefore, for simplicity, has omitted the further discussion to polaroid 13 and 18 here.
In one aspect of the invention, the EC of a white is provided for each translucent sheet parts 12 and 20.LCD element 14 be sandwiched in polaroid 13 and 18 and translucent sheet parts 12 and 20 between.Give the first translucent sheet parts, 12 making alive V
1 +, and do not give the second translucent sheet parts, 20 making alive V
1 +, can make the translucent sheet parts 12 of the winning half opaque and reflection that becomes like this, and the second translucent sheet parts 20 become clear or transparent.Therefore, reflected by the first translucent sheet parts 12, thereby allow to see LCD element 14 by the second translucent sheet parts 20 through the incident light of the second translucent sheet parts 20.Replacedly, give the second translucent sheet parts, 20 making alive V
2 +, and do not give the first translucent sheet parts, 12 making alive V
2 +, can make the half opaque and reflection that becomes of the second translucent sheet parts 20 like this, and the first translucent sheet parts 12 become transparent.Therefore, reflected by the second translucent sheet parts 20, thereby allow to see LCD element 14 by the first translucent sheet parts 12 through the incident light of the first translucent sheet parts 12.
Fig. 2 has showed the use of two-sided visual display on portable communication device 30.This portable communication device 30 comprises a top 32 with two-sided visual display 34, and this two-sided visual display 34 comprises a front surface 40 and a rear surface 42 (Fig. 4).Portable communication device 30 also comprises a bottom 36, and this bottom 36 has the keyboard 38 that is used for to this portable communication device 30 input informations.This portable communication device 30 has an open mode and a closure state as shown in Figure 4 as shown in Figure 2.When this portable communication device was in its open mode, text shown in Figure 2 can show on the front surface 40 of display screen 34.As in Fig. 3, being seen, from the process of front surface 40 videotexs, the first translucent sheet parts 12 (being positioned at the back) are in the state of partly opaque or reflection, and the second translucent sheet parts 20 (being positioned at the front) are in clear or transparent state.When this portable communication device 30 was in its closure state, text can show on the rear surface 42 of display screen 34, as shown in Figure 4.As shown in Figure 5, from the process that front surface 42 shows, the second translucent sheet parts 20 are in the state of partly opaque or reflection at text, and the first translucent sheet parts 12 are in clear or transparent state fully.
Fig. 6 is one and is used to or on the front surface 40 of display screen 34 or the example of the drive system 50 of similar demonstration is provided on its rear surface 42.LCD driving circuit parts 58 offer drive signal to drive the gun stocks parts and drive alternative pack 54,54 provides drive signal to the LCD element on the two-sided display screen.Driving phase inverter parts 56 provides the synchronizing signal of paraphase, make like this text just to may be displayed on the rear surface 42 of display screen 34 with content figure, this is similar to the directly demonstration on front surface 40 when LCD components of drive circuit 58 receives drive signals of two-sided display screen 34.The logical circuit of use such as programmable logic device (PLD) can provide the drive signal of paraphase better, finishes but also can be replaced by the programming instruction of uniqueness or other suchlike methods.The paraphase drive signal is carried out paraphase on two axles, these are different with the single shaft paraphase used in the mirror reflection equipment.Those of ordinary skill in the art can be easy to such an extent that accomplish the realization of the inverted drive signal of LCD driving circuit 58.
The LCD driving circuit signal of LCD driving circuit signal and paraphase all is imported into and drives in the alternative pack 54.Drive the state of alternative pack 54, between two-sided display screen 34 transmission driving circuit signals and paraphase driving circuit signal, switching based on display position switch 52.Display position switch 52 according to portable communication device between open mode and closure state change and the change state.Display position switch 52 is connected to two-sided display screen 34, and in decision translucent sheet parts 12 and 20 which will for half opaque (making alive) with cremasteric reflex with determine which transparent fully (not making alive) is to provide demonstration.
In one aspect of the invention, two-sided display screen 34 can be by switching between translucent sheet parts 12 and 20 and side by side switching between drive input signal and paraphase drive input signal, thereby the demonstration of image and/or content of text is provided on two faces of display screen 34.For example, by input range at the square-wave signal of 250-350Hz to display position switch 52 output terminals, make on two faces of display screen 34, to provide simultaneously to show and become possibility.Switching signal that replaces will allow the first translucent sheet parts 12 replace between half opaque and complete pellucidity, simultaneously the second translucent sheet parts 20 transparent and partly opaque between replace.Alternately switching signal also will provide the multiplexed of drive input signal and paraphase drive input signal by driving alternative pack 54.
In another aspect of this invention, independent translucent sheet parts are used to provide the display screen with show state and complete Clear ﹠ Transparent state.For instance, this realization type can see in a retail market such as jewellery store that, the information on the product can be watched here in show state, and product itself also can be watched in Clear ﹠ Transparent state.Referring to Fig. 7 and Fig. 8, a single face display screen 60 with LCD element 64 is provided, this LCD element 64 is between first polaroid 62 and second polaroid 66.Independent translucent sheet parts 68 are provided on a face of LCD element 66.These independent translucent sheet parts 68 can be made of electrochromic material or macromolecule dispersal type liquid display material.Can utilize electrochromism or macromolecule to scatter the liquid display material element that one of is in substantial transparent state or half opaque state is provided.The independent translucent sheet parts 68 of these types can change color when giving the element making alive.For example, in the example of electric driven color-changing part (EC), when on element not during making alive, element is an optical transparency; When adding DC voltage on element, element has changed to the state of half opaque color of reflection.Can select EC provide a pellucidity or color may be blue, green, black, white in a kind of colored state.In addition, the element of the various different colours translucent sheet parts that can be stacked and be used to provide a polychrome.
In one aspect of the invention, the EC with a white offers translucent sheet parts 68.In transparent state, wherein do not add V3+ voltage as shown in Figure 7, light transmission the front surface and the rear surface of single face display screen 60, thereby the clear demonstration of an object (perhaps a plurality of object) on the opposing face of display screen is provided, in other words, display screen has become a transparency window.In opaque state, wherein add V3+ voltage as shown in Figure 8, light can not see through the single face display screen, but seen through front surface, and is reflected and returns to demonstrate the image that is produced by LCD element 64.
According to the above structure of describing about Fig. 1-8, about the process flow diagram of Fig. 9-10, can understand a kind of method that is used for using translucent sheet better at LCD equipment, the state of this translucent sheet can be selected between reflection and pellucidity.Simultaneously, for the purpose of simplifying the description, method shown in Fig. 9-10 is illustrated and is introduced with a series of step, be to be understood that and recognize, the present invention can not be confined to the order of described step, and some steps can be carried out by different order appearance and/or with other steps that illustrate herein and describe simultaneously with reference to the present invention.In addition,, the step that does not require all explanations realizes the method according to one aspect of the invention.
Referring to Fig. 9, provide a kind of method that is used to control the two-sided display screen shown in Fig. 1-6.This method originates in step 100, in this step to power devices with two-sided display screen.At step 110 place, this equipment determines whether it powers in first state.For example, first state is that portable communication device is in an open mode as shown in Figure 2, and second state is exactly that this portable cellular communication facilities is in its closure state simultaneously.(be), in order to allow first face of two-sided display screen that demonstration is provided, voltage to be added on the first translucent sheet parts and from the second translucent sheet parts to remove voltage when equipment is in first state in step 120.In step 130, the LCD drive signal is sent to the LCD element.Then, in step 140, whether equipment is monitored it continuously and is in all the time in first state.When equipment when step 110 or step 140 no longer are in first state (denying), equipment will enter into second state, and advances to step 125.In step 125, in order to allow second face of two-sided display screen that demonstration is provided, equipment is removed voltage to the second translucent sheet parts making alive and from the first translucent sheet parts.Then in step 135, paraphase LCD drive signal is sent to the LCD element.Then, in step 145, whether the equipment continuous monitoring it be in second state all the time.When equipment is not in second state (do not deny), equipment turns to first state, and advances to step 120; Otherwise equipment remains on second state.
Referring to Figure 10, provide a kind of method that is used to control the single face display screen shown in Fig. 7-8.This method originates in step 200, in this step to power devices with single face display screen.In step 210, equipment determines whether it powers in first state.For example, first state be the single face display screen provide all as shown in Figure 8, be positioned at the relevant information of the product under the single face display screen, second state is exactly the single face display screen for seeing that being positioned at product as shown in Figure 7, under the single face display screen provides transparency window simultaneously.If when equipment is in first state (be),,, voltage is added in the translucent sheet parts in order to allow the single face display screen that the demonstration of information is provided in step 220.In step 230, the LCD drive signal is sent to the LCD element.Then, in step 240, whether equipment is monitored it continuously and is in all the time in first state.When equipment when step 210 or step 240 are not in first state (denying), equipment will enter into second state, and advances to step 225.In step 225, in order to allow the single face display screen that the transparent demonstration of the product of this single face display screen another side is provided, equipment is removed the voltage that is added on the translucent sheet parts.In step 235, the transmission of LCD drive signal is forbidden.Then, in step 245, whether equipment is monitored it continuously and is in second state.When equipment is not in second state (do not deny), equipment turns to first state, and advances to step 220; Otherwise equipment remains on second state.
The above introduction of carrying out has comprised one or more example of the present invention.Certainly, the institute that can not list each parts or method in order to describe the present invention might make up, but those of ordinary skill in the art will recognize that the combination and permutation of many deeper degrees of the present invention all are possible.Therefore, the present invention wishes to comprise such replacement, modification and the mutation within all main ideas that fall into appended claims and the scope.In addition, " comprise " and the scope of mutation and " having " and mutation thereof for employed term in specific description book or claim, this comprising property of term is similar to term and " comprises ".
Claims (26)
1. LCD system, it comprises:
LCD element with front surface and rear surface;
Be positioned at the first translucent sheet parts on the described front surface, the first translucent sheet parts can switch between reflective condition and pellucidity; With
Be positioned at the second translucent sheet component layer of described rear surface, the second translucent sheet parts can switch between reflective condition and pellucidity.
2. as the system in the claim 1, when the first translucent sheet parts are in pellucidity and the second translucent sheet parts when being in reflective condition, the front surface of described LCD element can be visible, when the second translucent sheet parts are in pellucidity and the first translucent sheet parts when being in reflective condition, the rear surface layer of described LCD element can be seen.
3. as the system in the claim 1, the first and second translucent sheet parts can be controlled between described reflective condition and pellucidity, wherein, the electrode making alive to corresponding translucent sheet parts can make corresponding translucent sheet parts from the switching of described pellucidity to described reflective condition.
4. as the system in the claim 1, the first and second translucent sheet parts comprise electrochromic material.
5. as the system in the claim 1, have one in the first and second translucent sheet parts at least and comprise a plurality of stack material with different colours.
6. as the system in the claim 1, the first and second translucent sheet parts comprise that macromolecule scatters the liquid display material.
7. as the system in the claim 1, also comprise to carry out paraphase and synchronous driving phase inverter parts to signal with controlling from the LCD driving circuit, with the alternative pack that can control, this alternative pack sends drive signal to described LCD element layer in first state of the front surface that shows described LCD element layer, and sends the paraphase drive signal to described LCD element in second state of the rear surface that shows described LCD element layer.
8. as the system in the claim 7, described driving phase inverter parts carry out paraphase to described drive signal on two axles.
9. as the system in the claim 1, also comprise the display position switch, its can control at first state of the front surface that shows described LCD element with show between second state of rear surface of described LCD element described system is switched.
10. as the system in the claim 9, for front surface and the rear surface that shows described LCD element simultaneously, described display position switch also can be under the frequency of 250-350 hertz, make described system alternately be in first state and second state.
11. as the system in the claim 1, described LCD system is positioned on the portable communication device, wherein, this portable communication device has an open mode and a closure state that is used for showing described LCD element rear surface that is used for showing described LCD element front surface.
12. as the system in the claim 11, also comprise a display position switch, it can monitor the state of described portable communication device with controlling, wherein, described open mode makes described LCD system enter first state, and described closure state makes described LCD system enter second state.
13. a LCD system, it comprises:
LCD element with front surface and rear surface; With
Be positioned at the translucent sheet parts on the described rear surface, these translucent sheet parts can switch between reflective condition and pellucidity.
14. as the system in the claim 13, wherein, there be first state and second state that is used to provide transparency window of the image that a demonstration produces by described LCD element in described LCD system.
15. as the system in the claim 13, when with electrode that described translucent sheet parts link to each other on during making alive, described translucent sheet parts are in reflective condition, and when on the described electrode not during making alive, described translucent sheet parts are in pellucidity.
16. as the system in the claim 13, described translucent sheet parts comprise electrochromic material.
17. as the system in the claim 12, described translucent sheet parts comprise having a plurality of materials that pile up of color inequality.
18. as the system in the claim 12, described translucent sheet parts comprise macromolecule dispersal type liquid display material.
19. as the system in the claim 12, wherein, in first state, in order to show the image that produces by described LCD element layer, the described front surface of light transmission and by described translucent sheet parts reflection; In second state, thereby can see the object that is positioned at after the described rear surface, the front surface and the rear surface of the described LCD element of light transmission from described front surface in order to provide hyaline layer to make.
20. as the system in the claim 12, also comprise the position switch, it can switch the described translucent parts of pulling with controlling between described reflective condition and described pellucidity.
21. one kind comprises the portable communication device as the system in the claim 12.
22. a method of watching material in the LCD system, this LCD system has the translucent sheet parts that can switch between reflective condition and pellucidity, and these translucent sheet parts place on the surface of described LCD element, and this method comprises following step:
Determine the state of described LCD system;
Based on described LCD system state, select the reflective condition of described translucent sheet parts and a state in the pellucidity; With
Switch to the reflective condition of described translucent sheet parts and another state in the pellucidity.
23. as the method in the claim 22, described translucent sheet parts have first translucent sheet parts on the front surface that is positioned at described LCD element, with the second translucent sheet parts on the rear surface that is positioned at described LCD element, wherein, described LCD system has by the first translucent sheet parts and shows first state of described LCD element front surface and show second state of described LCD element rear surface by the second translucent sheet parts.
24., also comprise such step: in first state, to the second translucent sheet parts making alive and not to the first translucent sheet parts making alive as the method in the claim 23; In second state, to the first translucent sheet parts making alive and not to the second translucent sheet parts making alive.
25. as the method in the claim 24, also be included in first state and provide drive signal, the drive signal of paraphase is provided to described LCD element layer in second state to described LCD element layer.
26. as the method in the claim 25, also be included in the step of carrying out between first and second states alternately, be used for side by side showing the front surface of described LCD element and show the rear surface of described LCD element by the second translucent sheet parts by the first translucent sheet parts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69317300A | 2000-10-23 | 2000-10-23 | |
| US09/693,173 | 2000-10-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1470045A true CN1470045A (en) | 2004-01-21 |
| CN1240042C CN1240042C (en) | 2006-02-01 |
Family
ID=24783618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018174213A Expired - Lifetime CN1240042C (en) | 2000-10-23 | 2001-10-22 | Double-sided viewable display with switchable transflector |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP2004519718A (en) |
| KR (1) | KR100516875B1 (en) |
| CN (1) | CN1240042C (en) |
| AU (1) | AU2001297929A1 (en) |
| GB (1) | GB2384609B (en) |
| WO (1) | WO2002071131A2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322362C (en) * | 2004-04-08 | 2007-06-20 | 友达光电股份有限公司 | LCD with dual-side displaying |
| CN100359379C (en) * | 2004-03-05 | 2008-01-02 | 统宝光电股份有限公司 | Dual-display module with a tunable mirror sheet |
| US7515131B2 (en) | 2004-11-25 | 2009-04-07 | Nec Lcd Technologies, Ltd. | Liquid crystal display device and driving method thereof |
| US7804555B2 (en) | 2005-01-21 | 2010-09-28 | Lg Display Co., Ltd. | Liquid crystal display device and mobile station having the same |
| CN102413235A (en) * | 2011-11-02 | 2012-04-11 | 中兴通讯股份有限公司 | Mobile terminal and method for displaying information by utilizing mobile terminal |
| CN101889305B (en) * | 2007-12-11 | 2012-09-19 | 夏普株式会社 | Display device and its display method |
| CN102750902A (en) * | 2010-12-23 | 2012-10-24 | 微软公司 | Transparent display active panels |
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- 2001-10-22 KR KR10-2003-7005598A patent/KR100516875B1/en active IP Right Grant
- 2001-10-22 AU AU2001297929A patent/AU2001297929A1/en not_active Abandoned
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| CN103424918A (en) * | 2012-05-14 | 2013-12-04 | 联想(北京)有限公司 | Double-screen display device, double-screen display method and electronic equipment |
| CN103424918B (en) * | 2012-05-14 | 2016-07-06 | 联想(北京)有限公司 | Double display unit, double-screen display method and electronic equipment |
| CN103714790A (en) * | 2012-09-28 | 2014-04-09 | 株式会社日本显示器 | Display device and electronic apparatus |
| CN103714790B (en) * | 2012-09-28 | 2016-06-01 | 株式会社日本显示器 | Display unit and electronics |
| CN103871368A (en) * | 2012-12-11 | 2014-06-18 | 联想(北京)有限公司 | Display device, electronic device and display method |
| CN103871368B (en) * | 2012-12-11 | 2016-03-30 | 联想(北京)有限公司 | Display device, electronic equipment and display packing |
| CN107017281A (en) * | 2017-05-27 | 2017-08-04 | 武汉天马微电子有限公司 | Organic light-emitting display device |
| CN107017281B (en) * | 2017-05-27 | 2019-11-12 | 武汉天马微电子有限公司 | Organic light-emitting display device |
| CN108231849A (en) * | 2018-01-03 | 2018-06-29 | 京东方科技集团股份有限公司 | display device, device and display control method |
| CN108231849B (en) * | 2018-01-03 | 2020-06-30 | 京东方科技集团股份有限公司 | Display device, apparatus and display control method |
| US10714030B2 (en) | 2018-01-03 | 2020-07-14 | Boe Technology Group Co., Ltd. | Display device and apparatus, display control method and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004519718A (en) | 2004-07-02 |
| WO2002071131A2 (en) | 2002-09-12 |
| KR20030046517A (en) | 2003-06-12 |
| CN1240042C (en) | 2006-02-01 |
| GB2384609B (en) | 2004-09-08 |
| AU2001297929A1 (en) | 2002-09-19 |
| WO2002071131A3 (en) | 2003-02-06 |
| KR100516875B1 (en) | 2005-09-26 |
| GB2384609A (en) | 2003-07-30 |
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