CN1851548A - Sunlight visible colour liquid crystal display device - Google Patents
Sunlight visible colour liquid crystal display device Download PDFInfo
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- CN1851548A CN1851548A CN 200510043375 CN200510043375A CN1851548A CN 1851548 A CN1851548 A CN 1851548A CN 200510043375 CN200510043375 CN 200510043375 CN 200510043375 A CN200510043375 A CN 200510043375A CN 1851548 A CN1851548 A CN 1851548A
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Abstract
The present invention utilizes electricity controllable reflecting type liquid crystal polaroid to make total reflection all penetrance all colour LCD with distinctness visible in the sun and normal work in indoors dark surrounds. Said electricity controllable bistable state reflecting type liquid crystal polaroid is set between LCD and backlight source, duo to having two kinds of steady optical effect, i.e. reflection effect and scattering effect, thereby completely realizing total reflection and all penetrance displaying function.
Description
Technical field:
The present invention is that utilize that the controlled reflective liquid crystal polaroid of electricity makes a kind of both can be in the sun obviously as seen, again indoors the total reflection of operate as normal, the full color LCD that full impregnated is crossed under the dark surrounds.The controlled Bistble reflection liquid crystal polarizer of this electricity is placed between LCD and the backlight, and because of having the optical effect of two kinds of stable states, promptly reflection effect and scattering effect have realized the Presentation Function that total reflection and full impregnated are crossed satisfactorily.
Background technology:
Entered since 21st century, the variation of making rapid progress has taken place in field of information display.Be accompanied by the emerge in multitude as emerging rapidly in large numbersBamboo shoots after a spring rain such as digit information compress techniques such as multimedia, 3G wireless telecommunications, network technology, MP3, MPEG4, various inserted computer, household electrical appliance, portable data assistance, with no paper office system.As man-machine vision news media, display is also carrying out a beyond example change.With regard to display and corresponding electronic product thereof that outdoor sunlight uses down, people have proposed following four requirements to display:
1, both can be obviously readable in the sun, again can be at indoor environment and the full-transparency type display mode that is all-trans that uses night.
2, save energy consumption, stand-by time is long, makes full use of sun power under the workplace by day.
3, structure is light, and human oriented design is convenient to move, and complete machine weight preferably is not more than 250 grams.
4, full-color animation, response speed and image quality satisfy video and high-resolution requirement.
Wherein first and the 4th is even more important, but up to the present, existing various displays all can not meet the demands.
Since LCD was come out 30 years, played crucial effects for the development of portable type electronic product, from early stage accutron, counter personal information assistant PDA finally, mobile phone, pocket computer etc.Black and white reflective-mode direct-reading in the sun wherein, but full color display such as colored mobile phone, hand-held computer etc. are owing to adopted colored filter all can not use in the sun or under bright outdoor environment.Thereby brought huge inconvenience to the user.Reason is the backlight (light emitting diode that present colored mobile phone and hand-held computer adopts, cold cathode screen light modulation) etc. all can't compare with the light intensity of open air, someone once attempted to adopt the design of semi-transparent mistake, semi-reflective, promptly relevant perforate on the reflective aluminum plated film, or the method for employing half-reflection and half-transmission plated film all can not satisfy user's requirement.
The organic light emitting display of rising in recent years (OLED) is a kind of flat-panel monitor of active illuminating, and it need not to use backlight, just can be implemented in indoor bright display effect.Also progressively finish commercialization by the full color OLED display that TFT drives.But the fact that nothing is striven is, organic light emission volumetric display sunlight out of doors uses down, and its brightness can not " be mentioned in the same breath ".
Self-evident, at present domestic television set generally uses CRT negative electrode kinescope and slimming electron emission display device FED, the plasma panel display PDP etc. all can not be as the usefulness of outdoor display, because they all are based on the luminous display of phosphorus, its brightness all can not be compared with outdoor luminance brightness.The display that Organic Light Emitting Diode OLED and reflective liquid crystal are shared, this apparatus structure pattern is attempted the advantage in conjunction with two kinds of displays, so that use the reflective liquid crystal Presentation Function in the sun, and at the family with and the Presentation Function of the luminous Organic Light Emitting Diode of night use.But, be not difficult to find that getable under this device and the outdoor sunlight is traditional, black and white type liquid crystal display effect, promptly with same reflecting effects such as liquid crystal wrist-watch and counters, does not satisfy the requirement of full color demonstration under the sunlight.
At the display of some special purpose, there is the people that a plurality of cold cathode fluorescent lamp pipes are installed in the colour liquid crystal display device back thick and fast, reached the effect that sunlight can show down.But this method is to be that cost obtains with the weight that has strengthened power consumption and display, does not satisfy above-mentioned second, third requirement.Obviously be not suitable for use in full color portable display readable under the sunlight.
Summary of the invention:
Main purpose of the present invention is to utilize the controlled reflective liquid crystal polaroid manufacturing of electricity both can be in the sun obviously as seen, again can be indoors and dark surrounds total reflection, the infiltration type full color display entirely of work down.The controlled Bistble reflection liquid crystal polarizer of this electricity is placed between the full-color LCD and the utmost point backlight.Under the sunlight pattern, liquid crystal polarizer is placed in the reflection-type ordered state out of doors, and its functional equivalent is in traditional total reflection polaroid, thereby makes full-color LCD produce tangible colour picture; Indoors with dark surrounds in, liquid crystal polarizer is positioned over the scattering ordered state, plays the effect of the equal tabula rasa of backlight, has been guaranteed the operate as normal of full-color LCD by the unlatching of backlight.
Another fundamental purpose of the present invention is to utilize the controlled bistable state cholesteric liquid crystal circular polarizing disk of electricity to make the optical modulation device that inactivity consumes, no matter it is used as the reflection-type Polarizer, still the equal tabula rasa that is used as scatter-type, except the moment of triggering, the cholesteric liquid crystal circular polarizing disk all is in the permanent stable state of zero-power.
Structure of the present invention is applicable to the full color LCD that all utilize the polarized light modulation, such as TFT-TN (thin film transistor (TFT)-nematic LCD), TFT-IPS (thin film transistor (TFT)-XY switch type LCD), TFT-MVA (thin film transistor (TFT)-multi-domain vertical alignment) type LCD and STN (super-twist nematic liquid crystal display) etc.
The present invention has adopted the full spectral reflectance type of the visible light cholesteric liquid crystal circle various fabrication schemes of sheet that shake, and is used to realize the full color display Presentation Function of various sunlight visibles.
Description of drawings:
Fig. 1 TFT-TN display device structure synoptic diagram.Wherein Fig. 1 a is the fully-reflected type display mode; Fig. 1 b is full infiltration type display mode.
The another kind of TFT-TN display device structure of Fig. 2 synoptic diagram.Expression is operated in the fully-reflected type display mode under the circularly polarized light duty.Wherein Fig. 2 a is the fully-reflected type display mode; Fig. 2 b is full infiltration type display mode.
Fig. 3 STN display device structure synoptic diagram.
Embodiment:
Embodiment 1: Fig. 1 is illustrated to be a kind of TFT-TN LCD of sunlight visible.Fig. 1 a represents the total reflection pattern of liquid crystal display; Fig. 1 b represents that the full impregnated of LCD crosses pattern.As shown in Figure 1, apparatus of the present invention system has two liquid crystal cells 100,110 and backlight assembly 120 to form.90 ° of Twisted Nematic LCDs are controlled and driven to the TFT-TN of the full color just display of first liquid crystal cell 100 representatives promptly by the film crystal circuit.Glass substrate 101 is embedded with the flat surface active circuit 103 of thin film transistor (TFT), usually by amorphous silicon or claim α-Si and by many crystalline silicon or claim (internal circuit and external circuit lead-in wire are omitted) that the P-Si material is made at plated film on glass.The inside surface of glass substrate 102 is shaped on red, green, blue sub-pixel 105 of colored filter and indium tin oxide transparent conduction common electrode layer 104.The spacing of upper and lower two glass plates is controlled between 3.5～10 microns, is made of frame adhesive and two substrates and satisfies first minimizing 90 ° of twisted nematic liquid crystals boxes.Liquid crystal then by priming by vacuum in box body, the effect that is subjected to surface orientation and electric field orientation presents 90 ° of distortions 108 respectively and the field causes nematic phase 109 structures.The liquid crystal cell outside surface posts respectively can be done between linear polarizer 106 and 107, two polaroids parallelly also can vertically put.At this figure is vertical the placement, is called normal white mode.
With display fundamental difference in the past be that the present invention has adopted second liquid crystal cell 110.Second liquid crystal cell 110 is to be made of top glass substrate 111 and lower glass substrate 112 and frame.The inside surface of its upper and lower glass substrate is coated with transparent indium tin oxide conductive layer 113,114 respectively.In order to reduce weight and thickness, the upper and lower two substrates of second liquid crystal cell also can be made by the polycarbonate plastic film, and film thickness is 0.1～0.15 millimeter usually.The spacing of two substrates is controlled between 10～20 microns, and the centre is filled with cholesteric liquid crystal, externally under the effect of circuit 118, can present the burnt wimble structure of stable state planar structure and stable state respectively.Upper surface at second liquid crystal cell posts 1/4 λ wave plate, and its effect is to make second liquid crystal cell play the effect of automatically controlled reflection type linear polaroid, its principle aftermentioned.Below second liquid crystal cell, be equipped with back-light mechanism 120, by light source 123, light guide plate 121 and all light film 122 form.In Fig. 1 a, backlight is closed, and second liquid crystal cell is in the stable state planar structure, and display is operated in the total reflection pattern, can be under sunlight and outdoor light apparent mode of operation.
Here second liquid crystal cell can the automatic or manual cut-grafting according to front light-source and two kinds of mode of operations of backlight, and the voltage of its conversion and waveform are by the photoelectric effect decision of cholesteric liquid crystal.After front light-source pattern trigger pulse arrived, liquid crystal molecule caused the nematic phase structure Relaxation to courage steroid planar structure by former burnt wimble structure through electric field, and after pulse, this structure can be under no electric field long preservation.The optical characteristics of this structure is that same rounding polarization (levying with the hand) component to front light-source does not have the phase shift total reflection.Through the conversion of 1/4 λ wave plate 115, total 110 is equivalent to automatically controlled reflection type linear polaroid again.Linearly polarized photon 133 after reflection, through the modulation of first liquid crystal cell, (seeing 134) arrives observer 140 smoothly behind the change polarization state.
After the trigger pulse of backlight pattern arrived, liquid crystal molecule directly was converted to burnt wimble structure by planar structure, and after pulse, the burnt wimble structure of long preservation under field-free state.The optical characteristics of this structure is owing to the angle difference between optical axis forms big optical anisotropy between the liquid crystal farmland, thereby incident ray is played strong scattering, depolarization, and 95% light is by forescatering, therefore homogenize, transmission have further been carried out for diffused light from backlight.Played the effect of equal tabula rasa.
What should particularly point out is that the cholesteric liquid crystal box here is the full spectral reflectance device of a kind of visible light.How the narrow spectrum of Bragg reflection is expanded to the principle and the manufacture method of full spectrum of visible light or three primary colors spectrum, see also author's Chinese patent CN1181568A and U.S. Pat P.5,949,513 and USP.6,285,434 etc.The realization of its full spectral reflectance both can combine by the cholesteric liquid crystal farmland of different pitch, can combine by the cholesteric liquid crystal farmland of identical pitch again, the size on its farmland is between 0.3～1.0 micron, and the function of second liquid crystal cell is a kind of optoelectronic switch so do not have driving, sweep circuit complicated in the above-mentioned patent in this patent.Consider from structure that in addition second liquid crystal cell can be combined on the backlight by the direct card of fexible film that conductive film is made 0.2～0.3 millimeters thick, perhaps card is combined on first liquid crystal cell, thereby reaches frivolous, purpose of power saving.
Provided the structural representation of the twisted nematic liquid crystal display of active driving among Fig. 1.It is suitable for other active or passive driven displays that development in recent years is got up equally, such as TFT-MVA (thin film transistor (TFT)-multi-domain vertical alignment) pattern, TFT-IPS (thin film transistor (TFT)-XY switch) pattern and passive ferroelectric liquid crystals etc.Because these patterns all are the automatically controlled modulation devices of polarized light, only need on the structure TFT-MVA, first liquid crystal cell, 100 displacements among TFT-IPS and ferroelectric liquid crystals box and Fig. 1 get final product.So constituted the TFT-MVA of sunlight visible, new displays such as TFT-IPS and ferroelectric liquid crystals.
Embodiment 2: shown in Figure 2 is the another kind of TFT-TN LCD of sunlight visible.Fig. 2 a represents the total reflection pattern; Figure ab represents that then full impregnated crosses pattern.As shown in Figure 2, apparatus of the present invention system has two liquid crystal cells 200,210 and backlight assembly 220 to form.First liquid crystal cell 200 representatives be full color TFT-TN display, promptly by thin-film transistor circuit control and 90 ° of Twisted Nematic LCDs driving.Glass substrate 201 inside surfaces are embedded with the flat surface active circuit 203 of thin film transistor (TFT), are formed in multicoating etching on glass by amorphous silicon or polycrystalline attitude silicon materials usually.That the inside surface of glass substrate 202 is shaped in advance is red, green, the colored filter 205 and tin indium oxide (ITO) transparency conducting layer 204 of blue sub-pixel.The spacing of upper and lower two glass plates is controlled between 3.5～10 microns, has constituted 90 ° of twisted nematic liquid crystals boxes of first minimal value by frame adhesive and two substrates.The effect that is subjected to surface orientation and electric field orientation to the liquid crystal in the box by priming by vacuum presents 90 ° of distorted-structures 208 respectively and the field causes nematic phase structure 209.Liquid crystal cell outside surface card has two kinds of polaroids of different in kind.The upper surface card has line style polaroid 206, and the lower surface card has round polaroid 207, and it plays polarizing axis towards the below.
With display fundamental difference in the past be, the present invention has adopted second liquid crystal cell 210, second liquid crystal cell 210 is to be made up of top glass substrate 211 and lower glass substrate 212 and frame, and the inside surface in its upper and lower glass substrate is coated with transparent indium tin oxide conductive layer 213,214 respectively.For reducing weight and thickness, the upper and lower two substrates of second liquid crystal cell also can be made by the polycarbonate plastic film, and the thickness of film is 0.1～0.15 millimeter usually.The spacing of two substrates is controlled between 10～20 microns, and the centre is filled with cholesteric liquid crystal, externally under the effect of circuit 218, can present the burnt wimble structure of stable state planar structure and stable state respectively.
In Fig. 2 a, backlight is closed, and second liquid crystal cell is in the stable state planar structure, and display is operated in the total reflection pattern, promptly apparent in the sun mode of operation.Natural light 231 is by the upper surface incident of display, by being converted into linearly polarized photon after the last linear polarizer.Thereafter in 90 ° of warped regions 208 of first liquid crystal cell, orthogonal polarized light is reversed 90 ° and has been become parallel polarized light, this component sees through colored filter 205 and converts colored parallel polarized light then to, sees through circular polarizing disk 207 then again and becomes colored circularly polarized light 232.Because circularly polarized light 232 is identical with the polarity of automatically controlled reflective cholesteric liquid crystal circular polarizing disk, the overwhelming majority is directed and reflects, and becomes circularly polarized light 233.When this component is converted to the parallel linear polarized light during for the second time by circular polarization (separate partially) sheet, pass through colored filter thereafter and become the multi-color cord polarized light.This component twists 90 ° and become vertical linear polarisation light when passing through liquid crystal region 208.Last smoothly through last linear polarizer, with the state arrival observer of vertical color polarized light.
Different with Fig. 1 a is that first liquid crystal cell has adopted the collocation of linear polarizer and circular polarizing disk, thereby directly combines with automatically controlled cholesteric liquid crystal circular polarizing disk.Need not to carry out theta alignment, eliminated boundary reflection simultaneously.
Shown in Fig. 2 a right-hand part,, still keep its orthogonal polarization state when natural light 231 sees through last linear polarizer 206 and after being converted into vertical component, sees through the liquid crystal region that the field causes nematic 209 again.By circular polarizing disk the time, be absorbed fully at last.This moment, display was in the dark attitude of optics.So two halves forms bright and dark contrast in the left and right sides of Fig. 2 a.
Fig. 2 a has provided the principle of work of the active driving Twisted Nematic LCD of sunlight visible.It is suitable for other active or passive driven displays that development in recent years is got up equally.Such as TFT-MVA, TFT-IPS etc. belong to the active-drive display, the FE ferroelectric liquid Crystal then belongs to the passive drive escope, and the common ground of this class display is to realize conducting or shutoff effect for polarized light under electric field action, all belongs to the photoelectric device that polarized light is modulated.
In Fig. 2 b, backlight is opened, and second liquid crystal cell is in the burnt wimble structure of stable state.At this moment, display is operated in full impregnated and crosses mode of operation, can be indoors with dark surrounds under the pattern of operate as normal.By the diffused ray 235 that backlight sends, invest second liquid crystal display by the display bottom.At this moment, second liquid crystal display 210 is in the burnt wimble structure of stable state, and the screw axis of cholesteric liquid crystal molecule is parallel with substrate basically.217 pairs of incident raies of burnt wimble structure have produced strong scattering process, have further played the effect of equal tabula rasa.The light 236 that passes second liquid crystal display 210 is that brightness is even, fully the white light (its spectrum is decided by light source 222) of depolarization.When light 236 is invested first LCD, the warp inclined to one side effect of separating of circular polarizing disk 207 down is converted into parallel polarized light, be converted into parallel polarized color light through colored filter 205 again, this component is in 90 ° of warped regions 208 of first liquid crystal cell, because of waveguiding effect has been twisted 90 degree, change orthogonal polarized light into.This light and then the smooth upper polarizer that sees through perpendicular to paper, the last eyes that arrive the observer with the state of vertical color linearly polarized light.This moment, display was called the bright attitude of optics.Moreover, when light 236 is invested first LCD, the warp effect of circular polarizing disk 207 down is converted into parallel polarized light, be converted into parallel polarized color light through colored filter 205 again, the field that this component projects first liquid crystal cell causes nematic phase zone 209, and its polarization state is not subjected to obvious change, keeping parallelism polarized light state basically still, this light is all absorbed during linear polarizer 206 on passing through, the result, and display is in the dark attitude of optics.Yet be subjected to the control of the first liquid crystal cell electrode voltage and drive waveforms, display can present between bright attitude and the different gray scales of dark attitude and the pattern of chroma.The photoelectric characteristic curve of first liquid crystal cell has determined parameters such as the operating voltage of display and gray shade scale.
Embodiment 3: shown in Figure 3 is super-twist nematic (STN) LCD of sunlight visible.Compare with Fig. 1, Fig. 2, except the first liquid crystal cell difference, other parts are roughly the same.So optical path analysis is omitted.First liquid crystal cell of Fig. 3 is the most popular display of present colored mobile phone, more than one hundred million at least of the recoverable amounts in the world.The problem that numerous user like this faces jointly is exactly that colored mobile phone can't use under the light daytime out of doors, can't search message.Therefore, Fig. 3 has proposed a creationary scheme.The structure of the colored STN of sunlight visible as shown in Figure 3, is made of first liquid crystal cell, second liquid crystal cell and backlight assembly.First liquid crystal cell is present typical colored STN display, is formed with the frame adhesive envelope by upper and lower two glass substrates 301,302.Liquid crystal and the surperficial distortion angle that mixes into 220 °～270 ° in the box, the both alignment layers of the inside surface of liquid crystal cell makes the liquid crystal molecule apparent surface be 3～7 ° tilt angle.The optics requirement of STN is fully satisfied in the design of the thick optical anisotropy (Δ nd) with liquid crystal of box, and last ellipsoidal polarizing plate and following ellipsoidal polarizing plate exactly can compensate for the chromatic dispersion that STN causes makes it obtain the display effect of intimate black and white.It is color mode that 305 of built-in chromatic color filters make the STN mode switch.The left-half of Fig. 3 is the bright attitude of optics, and under the sunlight, second liquid crystal cell is triggered to the burnt wimble structure in plane out of doors.Display still presents bright color effect; The right half part of Fig. 3 is the dark attitude of optics, and it is caused by the shutoff effect of STN itself, and is irrelevant with forward and backward light source.Can predict, about the LCD of sunlight visible, will provide more wide development space among the present invention for colored mobile phone, portable computer etc.
Claims (13)
1, a kind of colour liquid crystal display device of sunlight visible comprises:
A. first liquid crystal cell that has at least one color display unit;
B. has field-free bistable second liquid crystal cell of cholesteric liquid crystal;
C. backlight assembly;
Wherein second liquid crystal cell is between first liquid crystal cell and backlight assembly, it is characterized in that under electric field action, light being modulated: its first stable state, be that courage steroid planar structure can all reflect from front light-source and sees through the polarized color light line of first liquid crystal cell, thereby produce the coloured image of sunlight visible; Its second stable state, promptly the burnt wimble structure of courage steroid all scattering make it to see through first liquid crystal cell from the light of backlight assembly, thereby visible coloured image under the generation dark situation.
2,, it is characterized in that the colour liquid crystal display device of full-reflective full-transmission formula according to the colour liquid crystal display device of the sunlight visible described in the claim 1.
3,, it is characterized in that first liquid crystal cell is to close the liquid crystal cell of the active or passive drive that forms by upper and lower two linear polarizer cards according to the colour liquid crystal display device of the sunlight visible described in the claim 1.
4,, it is characterized in that first liquid crystal cell is to close the liquid crystal cell of the active or passive drive that forms by top linear polarizer and bottom circular polarizing disk card according to the colour liquid crystal display device of the sunlight visible described in the claim 1.
5,, it is characterized in that first liquid crystal cell is the liquid crystal cell of the active or passive drive of being closed by upper and lower two ellipsoidal polarizing plate cards according to the colour liquid crystal display device of the sunlight visible described in the claim 1.
6,, it is characterized in that second liquid crystal cell is the cholesteric liquid crystal box with full spectral reflectance type of visible light of field-free bi-stable character according to the colour liquid crystal display device of the sunlight visible described in the claim 1.
7,, it is characterized in that second liquid crystal cell is to be combined by the cholesteric liquid crystal microdomain with different pitch according to the colour liquid crystal display device of the sunlight visible described in the claim 1.
8,, it is characterized in that second liquid crystal cell is by having same pitch but the cholesteric liquid crystal microdomain of Discrete Distribution combines according to the colour liquid crystal display device of the sunlight visible described in the claim 1.
9,, it is characterized in that second liquid crystal cell is to be formed by upper and lower two plastics conductive film manufacturings according to the colour liquid crystal display device of the sunlight visible described in the claim 1.
10,, it is characterized in that the effect of second liquid crystal cell in the total reflection pattern is automatically controlled reflective linear polarization photomodulator according to the colour liquid crystal display device of the sunlight visible described in the claim 1.
11,, it is characterized in that the effect of second liquid crystal cell in the total reflection pattern is automatically controlled reflective circular polarizing disk modulator according to the colour liquid crystal display device of the sunlight visible described in the claim 1.
12,, it is characterized in that the effect that second liquid crystal cell is crossed in the pattern at full impregnated is automatically controlled equal tabula rasa according to the colour liquid crystal display device of the sunlight visible described in the claim 1.
13, according to the colour liquid crystal display device of the sunlight visible described in the claim 1, it is characterized in that first stable state is that the courage steroid planar structure and second stable state are the burnt wimble structure of courage steroid, can under the electric pulse effect, change mutually, and can under zero electric field, keep for a long time.
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| CN 200510043375 CN1851548A (en) | 2005-04-22 | 2005-04-22 | Sunlight visible colour liquid crystal display device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101806962B (en) * | 2010-02-05 | 2012-07-18 | 青岛海信移动通信技术股份有限公司 | Display method, display system and mobile device |
| CN102656513A (en) * | 2009-11-13 | 2012-09-05 | 辛诺普蒂克斯照明电气设备有限公司 | System and method for modulating and displaying optical effects |
| CN103376589A (en) * | 2012-04-17 | 2013-10-30 | 扬升照明股份有限公司 | Display device |
| CN103969872A (en) * | 2014-04-22 | 2014-08-06 | 京东方科技集团股份有限公司 | Liquid-crystal display device |
| CN105717705A (en) * | 2016-04-26 | 2016-06-29 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN106292120A (en) * | 2016-09-29 | 2017-01-04 | 京东方科技集团股份有限公司 | Display floater and driving method thereof |
| WO2018191878A1 (en) * | 2017-04-19 | 2018-10-25 | Boe Technology Group Co., Ltd. | Backlight module for display apparatus, display apparatus, and method of driving edge-lit backlight module |
| CN114063337A (en) * | 2020-08-07 | 2022-02-18 | 马耀东 | Epitaxial orientation liquid crystal display |
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2005
- 2005-04-22 CN CN 200510043375 patent/CN1851548A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102656513A (en) * | 2009-11-13 | 2012-09-05 | 辛诺普蒂克斯照明电气设备有限公司 | System and method for modulating and displaying optical effects |
| US8817372B2 (en) | 2009-11-13 | 2014-08-26 | Kommanditgesellschaft Synoptrix Lichttechnik Gmbh & Co. | System and method for modulating and displaying optical effects |
| CN102656513B (en) * | 2009-11-13 | 2016-01-27 | 辛诺普蒂克斯照明电气设备有限公司 | For modulating the system and method with display optical effect |
| CN101806962B (en) * | 2010-02-05 | 2012-07-18 | 青岛海信移动通信技术股份有限公司 | Display method, display system and mobile device |
| CN103376589B (en) * | 2012-04-17 | 2016-06-01 | 扬升照明股份有限公司 | Display device |
| CN103376589A (en) * | 2012-04-17 | 2013-10-30 | 扬升照明股份有限公司 | Display device |
| US9188808B2 (en) | 2012-04-17 | 2015-11-17 | Young Lighting Technology Inc. | Display device having reflective polarizer |
| CN103969872A (en) * | 2014-04-22 | 2014-08-06 | 京东方科技集团股份有限公司 | Liquid-crystal display device |
| CN105717705A (en) * | 2016-04-26 | 2016-06-29 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN106292120A (en) * | 2016-09-29 | 2017-01-04 | 京东方科技集团股份有限公司 | Display floater and driving method thereof |
| CN106292120B (en) * | 2016-09-29 | 2017-09-26 | 京东方科技集团股份有限公司 | Display panel and its driving method |
| WO2018191878A1 (en) * | 2017-04-19 | 2018-10-25 | Boe Technology Group Co., Ltd. | Backlight module for display apparatus, display apparatus, and method of driving edge-lit backlight module |
| US10935838B2 (en) | 2017-04-19 | 2021-03-02 | Boe Technology Group Co., Ltd. | Backlight module for display apparatus, display apparatus, and method of driving edge-lit backlight module |
| CN114063337A (en) * | 2020-08-07 | 2022-02-18 | 马耀东 | Epitaxial orientation liquid crystal display |
| CN114063337B (en) * | 2020-08-07 | 2024-01-26 | 马耀东 | Epitaxial alignment liquid crystal display |
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