CN101187751A - Dual mode display - Google Patents
Dual mode display Download PDFInfo
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- CN101187751A CN101187751A CNA2007101101724A CN200710110172A CN101187751A CN 101187751 A CN101187751 A CN 101187751A CN A2007101101724 A CNA2007101101724 A CN A2007101101724A CN 200710110172 A CN200710110172 A CN 200710110172A CN 101187751 A CN101187751 A CN 101187751A
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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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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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
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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
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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
- G02F1/1336—Illuminating devices
- G02F1/133621—Illuminating devices providing coloured light
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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
- G02F1/1336—Illuminating devices
- G02F1/133621—Illuminating devices providing coloured light
- G02F1/133622—Colour sequential illumination
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a dual mode liquid crystal display effecting under a dual mode, a solid color reflecting mode and a color penetrating mode. The invention provides an LCD with a filter plate only at the penetrating part of a pixel, ensuring to be read under the peripheral light ray. One pattern of the invention reduces a black matrix cover used in the process of producing the filter plate. The invention provides a diagonal pixel to improve the resolution of LCD under the color penetrating mode. One pattern of the invention is to make the light switch between two colors and the third color (green) presents all the time, thereby decreasing the image refresh rate of LCD in the method for mixing field sequence. One pattern of the invention is to produce color from back light, saving the filter plate. And one pattern of the invention is to use the filter sheet only at the green light pixel, thereby saving the requirement to produce the filter plate array using additional light cover.
Description
Technical field
The present invention relates to a kind of dual mode liquid crystal display, relate in particular to a kind of one double mode, a monochromatic reflective-mode and a colour and penetrate the dual mode liquid crystal display that acts under the pattern.
Background technology
In various electronic packages, use the ratio of display constantly to increase, make display manufacturer must make great efforts to provide the assembly of better usefulness.Effectiveness parameters comprises power consumption, resolution, image turnover rate (frame refresh rate), cost and the readability under daylight.Display manufacturer adopts various technology to promote the performance of these effectiveness parameters.
It is to adopt half-penetrating reflective LCD (transflective LCD) that a kind of technology is wherein arranged, each pixel (pixel) of half-penetrating reflective LCD has a reflecting part (reflective part) and a breakthrough portion (transmissive part), and breakthrough portion and reflecting part comprise sub-pixel (sub-pixel) equally.Each pixel has optical filter (color filter), in order to give pixel with color.In addition, each sub-pixel is flatly or vertically to dispose, and therefore will present the three or more sub-pixel of color needs in LCD.
In above-mentioned method, optical filter is placed on breakthrough portion and the reflecting part.Therefore, the light by optical filter can be attenuated, and makes that reflective-mode can thicken and be not easy to read.In addition, (backlight) backlight needs more electric power to reach high-resolution demonstration under the pattern of penetrating.In addition, the sub-pixel of usage level or arranged perpendicular can cause the resolution step-down.It is more arranged very, in LCD, switch all color component and need use high-frequency and high power consumption.
Take a broad view of above-mentioned discussion, still need a kind of technology at present, can produce the High Resolution LCD that under daylight, to read.In addition, the LCD that needs exploitation only to need low electric power and low image turnover rate (frame rate) is also arranged.The present invention can reach above-mentioned requirements.
Summary of the invention
Purpose of the present invention is for providing a kind of LCD, and can provide preferable resolution under existing LCD compares.
Another object of the present invention is to reduce the required electric power of irradiation LCD.
Another object of the present invention is to reduce the image turnover rate (frame rate) of LCD.
And another object of the present invention be for LCD provides can be in the display of day optical reading.
The invention provides a kind of LCD that on the breakthrough portion of a pixel, has optical filter that only has, make arround can read under the light.And another kenel of the present invention is the black matrix" light shield (black matrix mask) of province except generally using in making the optical filter process.In addition, the invention provides diagonal pixels (diagonal pixel), so that promote LCD penetrates the LCD under the pattern at color resolution.In addition, another kenel of the present invention allows light switch between two kinds of colors, and the third color (being generally green) can present always, reduces the required image turnover rate of method that LCD is used for mixing field preface (hybrid field sequential) by this.Another kenel of the present invention is to produce color by (backlight) backlight, economizes except optical filter by this.Another kenel again of the present invention is only to use optical filter on the green glow pixel, economizes the demand of using extra light shield to make filter arrays of removing by this.
Description of drawings
Below will cooperate appended chart to narrate various embodiment of the present invention, wherein similarly label is represented similar assembly, and wherein:
Schematic view illustrating shown in Figure 1 is according to one embodiment of the invention, the xsect of the pixel of a LCD;
Schematic view illustrating shown in Figure 2 is according to one embodiment of the invention, the configuration of nine pixels of LCD;
Schematic view illustrating shown in Figure 3 is according to one embodiment of the invention, the effect of LCD under monochromatic reflective-mode;
Schematic view illustrating shown in Figure 4 is according to one embodiment of the invention, and when using the method for part optical filter, LCD penetrates effect under the pattern at colour;
Schematic view illustrating shown in Figure 5 is according to one embodiment of the invention, and when using the method for mixing field preface, LCD penetrates effect under the pattern at colour; And
Schematic view illustrating shown in Figure 6 is according to one embodiment of the invention, and when using the method for diffraction, LCD penetrates effect under the pattern at colour.
Symbol description among the figure
Reflecting part 110
Sept 118a
Sept 118b
Colourless optical filter 202d
Black matrix" light shield 203
Light 402
Light 502
Green glow optical filter 504
Red-light LED 506a
White light LEDs 506b
Blue-ray LED 506c
Transparent partition thing 508a
Transparent partition thing 508b
Ruddiness composition 602c
Embodiment
It is relevant that various embodiment of the present invention and can penetrate the LCD (LCD) that acts under the pattern at one double mode, a monochromatic reflection mould pattern and a colour.Be familiar with this skill person and should understand the various modifications of doing for preferred embodiment, and rule described herein and characteristics.Therefore, the present invention is not limited to the embodiment that proposed, and should define according to the widest scope of principle of being stated and characteristics.
Schematic view illustrating shown in Figure 1 is according to the xsect of the pixel 100 of one of one embodiment of the invention LCD.Pixel 100 comprises a liquid crystal material 104, a pixel electrode 106, has altogether with electrode 108, a reflecting part (reflective part) 110, breakthrough portion (transmissive part) 112, substrate 114 and 116, sept (spacer) 118a and 118b, one first polaroid (polarizer) 120 and one second polaroid 122.In one embodiment of this invention, light 124 irradiation pixels 100 arround the light source 102 or.The example of light source 102 includes, but are not limited to that light emitting diode (LEDs) is backlight, the cold cathode fluorescent tube (Cold-Cathode Fluorescent Lamp, CCFL) backlight, with and the fellow.Arround light 124 can be the light source of daylight or any outside.In one embodiment of this invention, liquid crystal material 104 is the optics active material, can rotate from light source 102 or arround the polaxis of light of light 124.Liquid crystal material 104 can be stable twisted nematic (TN), electric field controls birefringence mode (Electrically Controlled Birefringence, ECB), with and the fellow.In one embodiment of this invention, the plane of light is to rotate according to the potential difference (PD) that puts between pixel electrode 106 and the common electrode 108.In one embodiment of this invention, pixel electrode 106 can utilize tin indium oxide with common electrode 108 (Indium Tin Oxide ITO) makes.In addition, each pixel is provided to a pixel electrode, and common electrode 108 then is shared by pixel institutes all in the LCD.
In one embodiment of this invention, reflecting part 110 is conductive, and arround can reflecting light 124 with the irradiation pixel 100.Reflecting part 110 is made of metal, and electrically to be coupled to pixel electrode 106, by this potential difference (PD) between cremasteric reflex portion 110 and the common electrode 108.Breakthrough portion 112 sends from the light of light source 102 with irradiation pixel 100. Substrate 114 and 116 surrounds liquid crystal material 104, pixel electrode 106 and common electrode 108.In one embodiment of this invention, pixel electrode 106 is set at substrate 114, and common electrode 108 is set at substrate 116.In addition, substrate 114 comprises exchange assembly (not being shown among Fig. 1).In one embodiment of this invention, the exchange assembly can be thin film transistor (TFT) (Thin Film Transistor, TFT).In addition, one drive circuit 130 transmits the signal relevant with pixel number and gives the exchange assembly.In one embodiment of this invention, driving circuit 130 uses Low Voltage Differential Signal (LVDS) driver.In another embodiment of the present invention, (transistor-transistor logic, TTL) interface is applied in the driving circuit 130 with the transistor logic that reduces in sensing voltage increase simultaneously.In addition, time schedule controller (timingcontroller) 140 is the required signal in diagonal line breakthrough portion of pixel with the signal encoding relevant with pixel number.In addition, time schedule controller 140 has a storer, when the signal relevant with pixel when time schedule controller 140 is removed, can allow the LCD self.
In one embodiment of this invention, sept 118a and 118b are placed on the reflecting part 110, to keep the distance of an equalization between substrate 114 and 116.In addition, pixel 100 comprises first polaroid 120 and second polaroid 122.In one embodiment of this invention, the polar axis of first polaroid 120 (axis of polarity) and the polar axis of second polaroid 122 are for being perpendicular to one another.In another embodiment of the present invention, the polar axis of the polar axis of first polaroid 120 and second polaroid 122 is parallel to each other.
Schematic view illustrating shown in Figure 2 is according to one embodiment of the invention, the configuration of nine pixels 100 of LCD.Pixel 100 comprises breakthrough portion 112b and reflecting part 110.In one embodiment of this invention, if follow RGB (red-blue-green) color system, breakthrough portion 112a-c gives respectively green, blue and ruddiness composition is to form a colour element.In addition, if select different color systems, breakthrough portion 112a-c can give different colors, similarly is the combination of red, green, blue and white or other color.Further, breakthrough portion 113a and 114a give green glow, and breakthrough portion 113b and 114b give blue light, and breakthrough portion 113a and 114c give ruddiness to pixel.In addition, the optical filter of different-thickness can be placed on the 112a-c of breakthrough portion, to reduce or to increase the color saturation (saturation) that is given to pixel.Saturation degree is defined in the intensity of the color of a certain specific level in the visible light.In addition, in different embodiments of the invention, colourless optical filter (colorless filter) 202d can be placed on the reflecting part 110.In different embodiments of the invention, the thickness of colourless optical filter 202d can be changed to other thickness that is placed on the optical filter on the 112a-c of breakthrough portion by zero and not wait.In one embodiment of this invention, breakthrough portion 112a represents a kind of diagonal band (diagonal strip) in three kinds of colors of colour element.Similarly, breakthrough portion 112b and 112c represent the diagonal band of other two kinds of colors of colour element.Use diagonal band can allow colour penetrate resolution under the pattern near the resolution under monochromatic (B﹠W) reflective-mode.The colour pattern of penetrating need high resolving power to be because human vision system can detecting level and vertical bar when visual with image.In another embodiment of the present invention, can adopt the belt of color, compare down with using diagonal band, can change the resolution of more horizontal direction, and change the resolution of less vertical direction.Determined by exchange assembly (not being shown in Fig. 2) by the light quantity that each breakthrough portion 112a-c transmits from light source 102.And follow, determine the color of colour element by the light quantity of each breakthrough portion 112a-c transmission.In addition, the shape of breakthrough portion 112a-c and optical filter can be sexangle, rectangle, octagon, circle or other or the like.In addition, the shape of reflecting part 110 can be rectangle, circle, octagon, with and the fellow.In addition, reflecting part 110 can stop the light that is passed to diagonal band, and can not be sent to the pixel of different color, and for instance, reflecting part 110 can stop along the light of breakthrough portion 112c and 113c and enters breakthrough portion 112b or 112a.Alternatively, also can use black matrix" light shield 203 or the covering between the photosensitive region (light sensitive area) of pixel and pixel.In one embodiment of this invention, black matrix" light shield 203 is economized divided by the reflectivity that promotes pixel.
Schematic view illustrating shown in Figure 3 is according to one embodiment of the invention, the effect of pixel 100 under monochromatic reflective-mode.Owing to only explain monochromatic reflective-mode among Fig. 3, so only demonstrate reflecting part 110 among the figure.Pixel 100 can have under the situation of external light source the monochromatic reflective-mode of use, in one embodiment of this invention, arround light 124 be incident on the reflecting part 110 by colourless optical filter 202d and liquid crystal material 104.Colourless optical filter 202d be used for arround the dough softening (attenuation) and the path difference (path difference) of light 124 to keep the dough softening that penetrates under the pattern with color the same with path difference.Light 124 reflexed to substrate 116 arround the reflecting part 110 of pixel 100 was incited somebody to action.In one embodiment of this invention, potential difference (PD) (v) is applied in the pixel electrode 106 that electrically is coupled with reflecting part 110 and common electrode 108.Liquid crystal material 104 (v) is directed according to potential difference (PD).Therefore, the plane of light 124 allows light can pass through second polaroid 122 arround the rotation of the directivity of liquid crystal material 104.Therefore so the angle of the directivity of liquid crystal material 104 has determined the brightness (brightness) of pixel 100, and influenced the luminous intensity of pixel 100.
In one embodiment of this invention, pixel 100 can adopt and be generally white liquid crystal embodiment.In this embodiment, the axle of first polaroid 120 and second polaroid 122 is parallel to each other.Pixel electrode 106, and common electrode 108 is applied in the limit voltage with maximum, the light that is reflected with blocking reflected portion 110.Therefore pixel 100 looks like black.Alternatively, pixel 100 can adopt general black liquid crystal.In this embodiment, the axle of first polaroid 120 and second polaroid 122 is for being perpendicular to one another.Pixel electrode 106, and common electrode 108 is applied in the limit voltage with maximum, with irradiation pixel 100.
Schematic view illustrating shown in Figure 4 is according to one embodiment of the invention, and when using the method for part optical filter, LCD penetrates effect under the pattern at colour.Owing to before illustrated that colour penetrated embodiment, therefore in Fig. 4, only demonstrated breakthrough portion 112a-c.As shown in Figure 4, on substrate 116, optical filter 404a, 404b and 404c are respectively at breakthrough portion 112a, 112b and 112c and be placed.Light source 102 is the standard backlight.Light 402 from light source 102 can utilize collimation photoconduction (collimating light guide) or lens to be aimed at.In one embodiment of this invention, can be from the light 402 of light source 102 by first polaroid 120.And first polaroid can be with the plane calibration of light 402 in a specific plane.In one embodiment of this invention, the plane of light 402 is calibrated the direction in level.In addition, second polaroid 122 has polaxis (axis ofpolarization) in vertical direction.Breakthrough portion 112a-c transmits light 402.In one embodiment of this invention, each breakthrough portion 112a-c has other exchange assembly.The control of exchange assembly is by the intensity of the light 402 of corresponding breakthrough portion.In addition, light 402 can pass liquid crystal material 104 transmitting by after the 112a-c of breakthrough portion.Breakthrough portion 112a, 112b and 112c are provided respectively with pixel electrode 106a-c.Potential difference (PD) between pixel electrode 106a-c and common electrode 108 has determined the directivity of liquid crystal material 104.And follow, the directivity of liquid crystal material 104 has determined to be incident in the intensity of the light 402 on each optical filter 404a-c.
In one embodiment of this invention, green glow optical filter 404a is placed on the 112a of breakthrough portion, and blue filter 404b is placed on the 112b of breakthrough portion, and ruddiness optical filter 404c is placed on the 112c of breakthrough portion.Each optical filter 404a-c gives colour element with the coloured light of correspondence.The light of being given by optical filter 404a-c has determined the colourity numerical value (chrominance value) of colour element.It similarly is the tone (hue) and saturation degree isochrome multimedia message breath of a pixel that colourity has comprised.In addition, if light 124 arround having provides the luminous intensity of colour element by reflecting part 110 (as Fig. 2 and the shown in Figure 3) light that is reflected.This luminous intensity can be increased in color and penetrate resolution under the pattern.Luminous intensity is the measurement criterion of the brightness of pixel.
Schematic view illustrating shown in Figure 5 is according to one embodiment of the invention, and when using the method for mixing field preface, LCD penetrates effect under the pattern at colour.Owing to before illustrated that colour penetrated embodiment, therefore in Fig. 5, only demonstrated breakthrough portion 112a-c.In one embodiment of this invention, light source 102 comprises the LED band, similarly is LED group 1, LED group 2 or the like (not being shown among the figure).In one embodiment of this invention, the LED that is flatly disposed is collected at together, and a LED group is connected under another, in order to irradiation LCD.Alternatively, the LED that is vertically disposed also can be collected at together.LED group shines in the mode of sequence, and the irradiation frequency of a LED group can be between 30 pictures of per second (frame) between 540 pictures.In one embodiment of this invention, each LED group comprises red-light LED 506a, white light LEDs 506b and blue-ray LED 506c.In addition, the red-light LED 506a of LED group 1 and white light LEDs 506b are by time t=0 to t=5 conducting, and the red-light LED 506a of LED group 2 and white light LEDs 506b are by time t=1 to t=6 conducting.Similarly, all ruddiness of other LED group and white light LEDs are with the mode effect of sequence.In one embodiment of this invention, if LED group is vertically to dispose, a horizontal row of the pixel of LCD can be shone in each LED group.Similarly, the blue-ray LED 506c of LED group 1 and white light LEDs 506b are by time t=5 to t=10 conducting, and the blue-ray LED 506c of LED group 2 and white light LEDs 506b are by time t=6 to t=11 conducting.Similarly, all blue lights of other LED group and white light LEDs are with the mode effect of sequence.Red-light LED 506a, white light LEDs 506b and blue-ray LED 506c are configured to red-light LED 506a and blue-ray LED 506c irradiation breakthrough portion 112a and 112c, and white light LEDs 506b irradiation breakthrough portion 112b.In another embodiment of the present invention, LED group can comprise red, green and blue-ray LED.Red, green and blue-ray LED also is configured to green light LED 506b irradiation breakthrough portion 112b, and red-light LED 506a and blue-ray LED 506c shine breakthrough portion 112a and 112c respectively.
In one embodiment of this invention, can be from the light 502 of light source 102 by first polaroid 120.And first polaroid 120 can be with the plane calibration of light 502 in a specific plane.In one embodiment of this invention, the plane of light 502 is calibrated the direction in level.In addition, second polaroid 122 has polaxis in vertical direction.Breakthrough portion 112a-c transmits light 502.In one embodiment of this invention, each breakthrough portion 112a-c has other exchange assembly.In addition, the control of exchange assembly is controlled the intensity of coloured light composition by this by penetrating the light intensity of each breakthrough portion 112a-c.In addition, light 502 can pass liquid crystal material 104 transmitting by after the 112a-c of breakthrough portion.Each breakthrough portion 112a, 112b and 112c have the pixel electrode 106a-c of oneself respectively.Potential difference (PD) between pixel electrode 106a-c and common electrode 108 has determined the directivity of liquid crystal material 104.In the embodiment that uses red, white and blue-ray LED, then the directivity of liquid crystal material 104 has determined to be incident in green glow optical filter 504, and the intensity of the light on transparent partition thing 508a and the 508b 502.The intensity of passing the light 502 of green glow optical filter 504 and transparent partition thing 508a and 508b has determined the colourity numerical value of colour element.In one embodiment of this invention, green glow optical filter 504 corresponding breakthrough portion 112b and being placed, breakthrough portion 112a and 112c do not have optical filter.Alternatively, breakthrough portion 112a and 112c can use transparent partition thing 508a and 508b respectively.Green glow optical filter 504, transparent partition thing 508a and 508b are positioned on the substrate 116.In another embodiment of the present invention, the carmine light optical filter can be put as on transparent partition thing 508a and the 508b.In one embodiment of this invention, between time t=0 to t=5, when red-light LED 506a and white light LEDs 506b were conducting, breakthrough portion 112a and 112c were red, and green glow optical filter 504 is given breakthrough portion 112b with green glow.Similarly, between time t=6 to t=11, when blue-ray LED 506c and white light LEDs 506b were conducting, breakthrough portion 112a and 112c were red, and green glow optical filter 504 is given breakthrough portion 112b with green glow.The combination of coloured light that is given to the color origin self-gating 112a-c of portion of colour element forms.In addition, if light 124 arround having provides the luminous intensity of colour element by reflecting part 110 (as Fig. 2 and the shown in Figure 3) light that is reflected.This luminous intensity can be increased in color and penetrate resolution under the pattern.
Schematic view illustrating shown in Figure 6 is according to one embodiment of the invention, and when using the method for diffraction, LCD penetrates effect under the pattern at colour.Owing to before illustrated that colour penetrated embodiment, therefore in Fig. 6, only demonstrated breakthrough portion 112a-c.Light source 102 can be the standard backlight.In one embodiment of this invention, the light 602 from light source 102 can be divided into green glow composition 602a, blue light composition 602b and ruddiness composition 602c by diffraction grating (diffractiongrating) 604.Alternatively, light 602 can be divided into the spectrum of color, and on the spectrum light of different piece can be by micro optical structure (micro-optical structure) each part by breakthrough portion 112a-c respectively.In one embodiment of this invention, micro optical structure is flat film optical texture (flat filmoptical structure), and it has the micro objective group, can be stamped or be introduced into film.Green glow composition 602a, ruddiness composition 602b and blue light composition 602c utilize diffraction grating 604 and are conducted to breakthrough portion 112a, 112b and 112c.The composition of light 602 can pass through first polaroid 120.And first polaroid 120 can be with the plane calibration of the composition 602a-c of light in a specific plane.In one embodiment of this invention, the plane of the composition 602a-c of light is calibrated the direction in level.In addition, second polaroid 122 has polaxis in vertical direction.Breakthrough portion 112a-c allows the composition 602a-c of light can see through them and transmits.In one embodiment of this invention, each breakthrough portion 112a-c has other exchange assembly.The control of exchange assembly is controlled the intensity of coloured light composition by this by the light intensity of corresponding breakthrough portion 112a-c.In addition, light composition 602a-c can pass liquid crystal material 104 transmitting by after the 112a-c of breakthrough portion.Breakthrough portion 112a, 112b and 112c have pixel electrode 106a-c respectively.Potential difference (PD) between pixel electrode 106a-c and common electrode 108 has determined the directivity of liquid crystal material 104.And follow, the directivity of liquid crystal material 104 has determined to pass the intensity of the light composition 602a-c of second polaroid 122.The intensity of passing the light composition 602a-c of second polaroid 122 has determined the colourity of colour element.In addition, if light arround having provides the luminous intensity of colour element by reflecting part 110 (as Fig. 2 and the shown in Figure 3) light that is reflected.This luminous intensity can be increased in color and penetrate resolution under the pattern.
As described herein, the breakthrough portion of pixel is tiltedly disposed over the ground, but not adopts horizontal or vertical configuration as the LCD of previously known.Diagonal configuration is adopted in the breakthrough portion, compares with the LCD of previously known and can promote resolution, therefore can provide preferable Presentation Function.
In addition, have arround light can strengthen the luminous intensity (luminance) that penetrates the colour element under the pattern at colour.So each pixel can increase the resolution of LCD like this with luminous intensity and colourity.Therefore, the required number of pixels of a certain specified resolution can be lower than the LCD of previously known, reduces the power consumption of LCD by this.In addition, compare down, can be used to reduce the power consumption of LCD based on the interface that the LCD of the interface of transistor logic (TTL) and previously known is used.In addition, because time schedule controller stores the signal relevant with pixel number, LCD can reach optimized self, also can reduce power consumption by this.In different embodiments of the invention, can adopt thin optical filter, in order to transmit more undersaturated color and more light quantity.So various embodiment of the present invention compare down at the LCD with previously known, can reach the purpose that reduces power consumption.
In addition, (as described in Figure 5) in an embodiment of the present invention, on pixel 100, can see green glow or white light forever, and have only ruddiness and blue light to be switched.So and the field sequence displayer (field sequential display) of previously known in comparison, only needs lower image turnover rate.
This dual mode liquid crystal display of the present invention can be applied in the notebook computer.
Although below proposed preferred embodiment of the present invention, be noted that the present invention is not limited to this a little embodiment.Under the situation of spirit of the present invention and category, as described in claim, be familiar with this skill person and should understand the mode that the present invention can have various corrections, variation, change, displacement and equivalence.
Claims (14)
1. a dual mode liquid crystal display is characterized in that, comprising:
A. a light source is in order to shine this dual mode display;
B. one first polaroid is in order to the plane of calibration by the polarization of the light on this light source to one first plane;
C. one second polaroid is in order to the plane of calibration by the polarization of the light on predefined second plane of this light source to one
D. one first substrate and one second substrate, this first substrate and this second substrate are inserted between this first polaroid and this second polaroid; And
E. a plurality of pixels, each described pixel is arranged at this first substrate, and each described pixel comprises a reflecting part and a breakthrough portion, and wherein this reflecting part does not have optical filter, and at least a portion of this breakthrough portion comprises one or more optical filters.
2. dual mode liquid crystal display as claimed in claim 1 is characterized in that: this reflecting part occupies the relative corner of described pixel.
3. dual mode liquid crystal display as claimed in claim 1 is characterized in that: this breakthrough portion occupies the center of described pixel.
4. dual mode liquid crystal display as claimed in claim 1 is characterized in that: the spectrum of a color utilizes a diffraction or a micro-optic film to be produced by the light of this light source.
5. dual mode liquid crystal display as claimed in claim 1 is characterized in that: this breakthrough portion is with tiltedly configuration over the ground.
6. dual mode liquid crystal display as claimed in claim 1 is characterized in that: these one or more optical filters are different thickness.
7. dual mode liquid crystal display as claimed in claim 1 is characterized in that: these one or more optical filters are identical thickness.
8. dual mode liquid crystal display as claimed in claim 1 is characterized in that more comprising one or more colourless septs, and these one or more colourless septs are set on this reflecting part.
9. dual mode liquid crystal display as claimed in claim 8 is characterized in that: these one or more colourless septs are identical thickness.
10. dual mode liquid crystal display as claimed in claim 8 is characterized in that: these one or more colourless septs are different thickness.
11. dual mode liquid crystal display as claimed in claim 1 is characterized in that more comprising one drive circuit, in order to provide pixel number to a plurality of exchange assemblies, described exchange assembly decision is by the light of this breakthrough portion transmission.
12. dual mode liquid crystal display as claimed in claim 11 is characterized in that: this driving circuit more comprises a transistor logic interface.
13. as claim 11 described dual mode liquid crystal displays, it is characterized in that more comprising a sequential control circuit, in order to upgrade the described pixel number of this dual mode liquid crystal display.
14. dual mode liquid crystal display as claimed in claim 1 is characterized in that: this dual mode liquid crystal display is used to a notebook computer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2006/045050 WO2008063171A2 (en) | 2006-11-21 | 2006-11-21 | Dual mode display |
| WOPCT/US06/45050 | 2006-11-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101187751A true CN101187751A (en) | 2008-05-28 |
| CN101187751B CN101187751B (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101101724A Expired - Fee Related CN101187751B (en) | 2006-11-21 | 2007-06-14 | Dual mode display |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100933111B1 (en) |
| CN (1) | CN101187751B (en) |
| WO (1) | WO2008063171A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116975A (en) * | 2009-11-19 | 2011-07-06 | 奇美电子股份有限公司 | System for displaying images |
| US8462144B2 (en) | 2008-07-28 | 2013-06-11 | Pixel Qi Corporation | Triple mode liquid crystal display |
| TWI401496B (en) * | 2008-07-28 | 2013-07-11 | Pixel Qi Corp | Transflective display with white tuning |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101827496B1 (en) | 2012-02-09 | 2018-02-09 | 한국전자통신연구원 | Dual mode function pixel and dual mode function display icluding the same |
| CN106707603B (en) * | 2017-02-24 | 2020-05-01 | 昆山龙腾光电股份有限公司 | Liquid crystal display panel and display device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3668106A (en) * | 1970-04-09 | 1972-06-06 | Matsushita Electric Ind Co Ltd | Electrophoretic display device |
| US6573961B2 (en) * | 1994-06-27 | 2003-06-03 | Reveo, Inc. | High-brightness color liquid crystal display panel employing light recycling therein |
| KR20020010747A (en) * | 2000-07-31 | 2002-02-06 | 구본준, 론 위라하디락사 | Transflective Liquid Crystal Display |
| TW525020B (en) * | 2001-07-27 | 2003-03-21 | Chi Mei Optoelectronics Corp | Liquid crystal display |
| TWI227354B (en) * | 2001-12-12 | 2005-02-01 | Seiko Epson Corp | Liquid crystal display device, substrate assembly for liquid crystal display device, and electronic apparatus |
| KR100596734B1 (en) * | 2004-05-25 | 2006-07-07 | (주)넥스디스플레이 | The liquid crystal display adopted transflective form |
| TW200629210A (en) * | 2004-11-26 | 2006-08-16 | Hitachi Displays Ltd | Liquid-crystal display device and method of driving liquid-crystal display device |
| CN100356246C (en) * | 2005-01-28 | 2007-12-19 | 友达光电股份有限公司 | Liquid crystal display panel and manufacturing method thereof |
-
2006
- 2006-11-21 KR KR1020077012463A patent/KR100933111B1/en not_active IP Right Cessation
- 2006-11-21 WO PCT/US2006/045050 patent/WO2008063171A2/en active Application Filing
-
2007
- 2007-06-14 CN CN2007101101724A patent/CN101187751B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8462144B2 (en) | 2008-07-28 | 2013-06-11 | Pixel Qi Corporation | Triple mode liquid crystal display |
| TWI401496B (en) * | 2008-07-28 | 2013-07-11 | Pixel Qi Corp | Transflective display with white tuning |
| CN102116975A (en) * | 2009-11-19 | 2011-07-06 | 奇美电子股份有限公司 | System for displaying images |
| CN102116975B (en) * | 2009-11-19 | 2013-10-16 | 群康科技(深圳)有限公司 | System for displaying images |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080091312A (en) | 2008-10-10 |
| KR100933111B1 (en) | 2009-12-21 |
| CN101187751B (en) | 2010-11-24 |
| WO2008063171A2 (en) | 2008-05-29 |
| WO2008063171A3 (en) | 2009-05-14 |
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