CN103207470A - Liquid crystal display screen and liquid crystal display method - Google Patents
Liquid crystal display screen and liquid crystal display method Download PDFInfo
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- CN103207470A CN103207470A CN 201210007496 CN201210007496A CN103207470A CN 103207470 A CN103207470 A CN 103207470A CN 201210007496 CN201210007496 CN 201210007496 CN 201210007496 A CN201210007496 A CN 201210007496A CN 103207470 A CN103207470 A CN 103207470A
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Abstract
The invention provides a liquid crystal display screen and a liquid crystal display method. The liquid crystal display screen comprises a back light unit, a first optical structure, a liquid crystal pixel array and a second optical structure, wherein the back light unit is used as a surface light source for sending out white light, the first optical structure comprises a first optical unit array which comprises a plurality of first optical units, the liquid crystal pixel array comprises a plurality of liquid crystal pixels, the second optical structure comprises a second optical unit array which comprises a plurality of second optical units, and the first optical units, the liquid crystal pixels and the second optical units are in unique correspondence. Each first optical unit is used for receiving white light sent by the back light units and generating multiple beams of polarized light, each beam of polarized light in multiple beams of polarized light has one color in the first number of colors, and the first number of colors does not include white. Each liquid crystal pixel comprises a second number of liquid crystal sub pixels, wherein each liquid crystal sub pixel in at least one part of liquid crystal sub pixel receives the corresponding color polarized light in the first preset polarization direction from the corresponding first optical units and generates rotated polarized lights. Each second optical unit receives rotated polarized light generated by the corresponding liquid crystal sub pixels and transmits polarized light in the second preset polarization direction.
Description
Technical field
The present invention relates to lcd technology, more specifically, relate to a kind of novel LCDs and corresponding liquid crystal display method thereof.
Background technology
In prior liquid crystal display (LCD), by controlling a red sub-pixel in the liquid crystal pixel, green sub-pixels, the Control of Voltage that blue subpixels is gone up separately shines the yawing moment of the white polarized light with predetermined first polarization direction on the corresponding sub-pixel, then see through the white polarized light with second predetermined polarisation direction, then by red, green, blue color filter sees through the red polarized light with second predetermined polarisation direction respectively, green polarized light, blue polarized light, synthetic described red polarized light at last, green polarized light and blue polarized light constitute the illumination effect of a liquid crystal pixel.
As mentioned above, in prior liquid crystal display, need red color filter, green color filter, blue color filter inevitably.Usually, provide red color filter, green color filter, blue color filter by color film.The operation for preparing color film is quite complicated, and the color film of R/G/B commonly used need be respectively Red, Green, Blue, Black and ITO with 5 masking process.Because need 5 masks, therefore the required preparation time of every color film is longer.
In addition, in the prior liquid crystal display cost, the shared cost of color film is about 20%, wherein mainly comprises glass and the used resin of color film.Though because the R/G/B sub-pixel is 1/3 in whole color film glass, when coating, needs whole and all be coated with, there is very big waste, this makes that also color film cost is higher.
At present, many LCDs productions commercial city is attempting adopting (injection) mode of injection to prepare color film, and namely color film resin is accurately injected in needed position on color film, is used for reducing cost.Yet, be difficult to accomplish very thin owing to be used for injecting the shower nozzle of color film resin, be difficult to realize high resolving power, and shower nozzle easily stifled problem be still waiting to solve.In addition, because when injecting color film resin every color film is sprayed respectively, though this has reduced cost, preparation time is longer, if a color film failure then needs all to do over again, apparatus for production line is had very high requirement.
Figure 1 illustrates the color film design of TFT pixel in the existing common liquid crystals display screen.
Therefore consider that color film cost has occupied the considerable part of LCDs cost, imagine a kind of novel LCDs, wherein need not to adopt color rete and can realize colored the demonstration simultaneously.
Summary of the invention
Consider the problems referred to above and made the present invention, an object of the present invention is to provide a kind of novel LCDs, it is by making it be divided into the multi beam polarized color light at white polarizing light irradiation before liquid crystal sub-pixel, and on feasible all polarizing light irradiations to one liquid crystal sub-pixel with a kind of color, thereby make that the polarized light itself that sees through this liquid crystal sub-pixel has been polarized color light, thereby need not to carry out colour filter through color film again.
According to an aspect of the present invention, provide a kind of liquid crystal display method, comprising: area source sends white light; From described generating white light multi beam polarized light, the every bundle polarized light in the described multi beam polarized light has a kind of color in the color of first quantity, and the color of described first quantity does not comprise white; Liquid crystal sub-pixel in the liquid crystal pixel receives the polarized light with first predetermined polarisation direction of its corresponding color and produces postrotational polarized light; And through the polarized light with second predetermined polarisation direction.
According to a further aspect of the invention, provide a kind of LCDs, having comprised: back light unit is used for sending white light as area source; First optical texture comprises the first optical unit array, and it has a plurality of first optical units; Liquid crystal pixel array comprises a plurality of liquid crystal pixels; Second optical texture comprises the second optical unit array, and it has a plurality of second optical units.First optical unit, liquid crystal pixel and second optical unit are corresponding uniquely.Each first optical unit be used for to receive the white light that back light unit sends and produces the multi beam polarized light, and the every bundle polarized light in the described multi beam polarized light has a kind of color in the color of first quantity, and the color of described first quantity does not comprise white.Each liquid crystal pixel comprises the liquid crystal sub-pixel of second quantity, wherein, each liquid crystal sub-pixel at least a portion liquid crystal sub-pixel receives the polarized light with first predetermined polarisation direction of corresponding color and produces postrotational polarized light from first optical unit of its correspondence.Each second optical unit receives the postrotational polarized light that is produced by its corresponding liquid crystal sub-pixel and sees through the polarized light with second predetermined polarisation direction.
Need not color film according to the LCDs of the embodiment of the invention and carry out color filtering, can directly be combined as the output color of pixel from the light of each sub-pixel output.This greatly reduces the cost of LCDs, has simplified the manufacturing process of LCDs.
Description of drawings
Embodiments of the present invention is described in detail in conjunction with the drawings, and above and other objects of the present invention, feature and advantage will become apparent, wherein:
Fig. 1 shows the color film design of TFT pixel in the existing common liquid crystals display screen.
Fig. 2 is the synoptic diagram that illustrates according to the LCDs of first embodiment of the invention.
Fig. 3 is the synoptic diagram that illustrates according to the LCDs of second embodiment of the invention.
Fig. 4 is the synoptic diagram that illustrates according to the LCDs of third embodiment of the invention.
Fig. 5 is the improved synoptic diagram that illustrates prism structure among first to the 3rd embodiment according to the present invention.
Fig. 6 is the synoptic diagram that illustrates according to the liquid crystal display method of the embodiment of the invention.
Specific implementation
LCDs and liquid crystal display method thereof according to the embodiment of the invention are described below with reference to accompanying drawings.Be to be understood that: the embodiments described herein only is illustrative, and should not be interpreted as limiting the scope of the invention.
The color membrane structure figure of TFT pixel in the existing common liquid crystals display screen has been shown among Fig. 1.As can be seen from Figure 1, R, G, the color film of B are approximately 1/3 in whole color film glass.As shown in fig. 1, between two sub-pixels, arrange black matrix", be used for blocking the other metal routing of sub-pixel.This is because the liquid crystal of metal routing correspondence position is not deflect, if do not block the other metal routing of sub-pixel, then color of pixel shows and will go wrong.
Next, with reference to figure 2-Fig. 5 LCDs according to the embodiment of the invention is described.
LCDs according to the embodiment of the invention comprises: back light unit, first optical texture, liquid crystal pixel array and second optical texture.
Described back light unit is used for sending white light as area source.Described backlight can comprise pointolite and light guide plate, and described pointolite can be light emitting diode (LED), cold-cathode fluorescence lamp (CCFL) etc.
Described first optical texture is used for from described generating white light polarized color light, and the polarized color light that produces is imported corresponding liquid crystal sub-pixel.Should note, the polarized color light that is imported into or shines a liquid crystal sub-pixel all is the polarized color light with a kind of color, for example, the polarized color light that shines first liquid crystal sub-pixel all is red polarized light, the polarized color light that shines second liquid crystal sub-pixel is green polarized light all, and the polarized color light that shines the 3rd liquid crystal sub-pixel all is blue polarized light.Described first optical texture comprises the first optical unit array, and it has a plurality of first optical units.
Described liquid crystal pixel array comprises a plurality of liquid crystal pixels, and each liquid crystal pixel is made of the liquid crystal sub-pixel of second quantity.For example, each liquid crystal pixel is made of redness, green and blue liquid crystal sub-pixel.Alternatively, each liquid crystal pixel can also be made of red, green, blue and white liquid crystal sub-pixel.
Described second optical texture is used for the polarized light component with predetermined second polarization direction of the polarized color light that transmission appears from each liquid crystal pixel.Described second optical texture comprises the second optical unit array, and it has a plurality of second optical units.
Should be appreciated that, first optical unit, liquid crystal pixel and second optical unit are corresponding uniquely, in other words, first optical unit is only corresponding to a liquid crystal pixel, a liquid crystal pixel is only corresponding to second optical unit, second optical unit is only corresponding to a liquid crystal pixel, and a liquid crystal pixel is also only corresponding to first optical unit.
Each first optical unit be used for to receive the white light that back light unit sends and produces the multi beam polarized light, and the every bundle polarized light in the described multi beam polarized light has a kind of color in the color of first quantity, and the color of described first quantity does not comprise white.
Each liquid crystal pixel comprises the liquid crystal sub-pixel of second quantity, wherein, each liquid crystal sub-pixel at least a portion liquid crystal sub-pixel receives the polarized light with first predetermined polarisation direction of corresponding color and produces postrotational polarized light from first optical unit of its correspondence.
Each second optical unit receives the postrotational polarized light that is produced by its corresponding liquid crystal sub-pixel and sees through the polarized light with second predetermined polarisation direction.
Described first optical unit can comprise: the first polarisation unit is used for receiving described white light, and sees through the white polarized light with first predetermined polarisation direction; Spectrophotometric unit is used for receiving the white polarized light that the described first polarisation unit produces, and produces described multi beam polarized light; And first glass substrate, be used for supporting liquid crystal pixel.
The first polarisation unit and spectrophotometric unit can be provided discretely, for example the first polarisation unit is provided as one deck, and spectrophotometric unit is provided as another layer that places on this first polarisation elementary layer.
Alternatively, described first optical unit comprises: the first polarisation unit, be used for receiving described white light and producing described multi beam polarized light, and described multi beam polarized light has the first predetermined polarisation direction; And first glass substrate, be used for supporting liquid crystal cells.In the case, the described first polarisation unit comprises the structure for generation of the spectrophotometric unit of described multi beam polarized light.In other words, the layer of the described first polarisation unit has gone up spectrophotometric unit integrated.
Fig. 2 shows the synoptic diagram according to the LCDs of first embodiment of the invention.As shown in Figure 2, spectrophotometric unit is shown as prism, and the light that shines on the prism can be white polarized light or white light, therefore, can be understood as: omitted the first polarisation unit in the figure of Fig. 2, perhaps the first polarisation unit and prism integrate in the figure of Fig. 2.No matter be which kind of situation, the light that penetrates from prism all is the multi beam polarized light, and wherein every bundle polarized light has one of color of described first quantity.
For example, each liquid crystal pixel comprises first liquid crystal sub-pixel, second liquid crystal sub-pixel and the 3rd liquid crystal sub-pixel, and the color of described first quantity comprises first color, second color and the 3rd color.The polarized light of first color is irradiated on first liquid crystal sub-pixel, and the polarized light of second color is irradiated on second liquid crystal sub-pixel, and the polarized light of the 3rd color is irradiated on the 3rd liquid crystal sub-pixel.
Again alternatively, described first optical unit comprises: the first polarisation unit is used for receiving described white light, and sees through the white polarized light with first predetermined polarisation direction; And first glass substrate, be used for receiving the white polarized light that the described first polarisation unit produces and produce described multi beam polarized light, and be used for supporting liquid crystal cells.In the case, described first glass substrate comprises the structure for generation of the spectrophotometric unit of described multi beam polarized light.In other words, on first glass substrate (that is the lower-glass among Fig. 2), carved the structure of spectrophotometric unit.For example, on the lower-glass/lower surface on the groove array of etching prism shape, in order to realize light splitting purpose of the present invention.By on the lower-glass/lower surface on the groove array of etching prism shape, can save independent parts, make that the thickness of LCDs is thinner, cost is lower.
In the case, be appreciated that and in Fig. 2, omitted the first polarisation unit, but exaggerated distance between prism and the lower-glass.
Again alternatively, described first optical unit can comprise: spectrophotometric unit, be used for the white light that receives is divided into multi-beam, and the every Shu Guang in the described multi-beam has a kind of color in the color of first quantity; The first polarisation unit of first quantity corresponds respectively to the color of described first quantity, and each first polarisation unit is used for receiving the light of corresponding color, and sees through the polarized light of the corresponding color with first predetermined polarisation direction; And first glass substrate, be used for supporting liquid crystal cells.
In the case, be appreciated that the light that shines prism among Fig. 2 is white light, through having produced the light of the color of first quantity, for example light of the light of the light of first color, second color and the 3rd color after the prism.The illumination of described first color be mapped to be attached to lower-glass on the first corresponding polarisation unit of first liquid crystal sub-pixel on and be converted into the polarized light of first color, and shine then on first liquid crystal sub-pixel.In like manner, the illumination of described second color be mapped to be attached to lower-glass on the first corresponding polarisation unit of second liquid crystal sub-pixel on and be converted into the polarized light of second color, and shine then on second liquid crystal sub-pixel; The illumination of described the 3rd color be mapped to be attached to lower-glass on the first corresponding polarisation unit of the 3rd liquid crystal sub-pixel on and be converted into the polarized light of the 3rd color, and shine then on the 3rd liquid crystal sub-pixel.
Should note, consider that the factors such as distance between distance, sub-pixel and the prism between each sub-pixel design the size of prism, thereby guarantee: only the polarizing light irradiation of first color is to first liquid crystal sub-pixel, only the polarizing light irradiation of second color is to second liquid crystal sub-pixel, only on the polarizing light irradiation to the of the 3rd color three liquid crystal sub-pixels.
Fig. 3 shows the synoptic diagram according to the LCDs of second embodiment of the invention.As shown in Figure 3, liquid crystal pixel comprises first liquid crystal sub-pixel, second liquid crystal sub-pixel and the 3rd liquid crystal sub-pixel, and the color of described first quantity comprises first color, second color and the 3rd color.
Described spectrophotometric unit comprises first prism placed side by side, second prism and prism, the light that shines on the prism can be white polarized light or white light, therefore, can be understood as: omitted the first polarisation unit in the figure of Fig. 3, perhaps the first polarisation unit and prism integrate in the figure of Fig. 3.No matter be which kind of situation, the light that penetrates from prism all is the multi beam polarized light, and wherein every bundle polarized light has one of color of described first quantity.
As shown in Figure 3, first prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color; Second prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color; Prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color.
The polarizing light irradiation of first color that first prism, second prism, prism produce is to first sub-pixel, the polarizing light irradiation of second color that first prism, second prism, prism produce is to second sub-pixel, on polarizing light irradiation to the three sub-pixels of the 3rd color that first prism, second prism, prism produce.
Advantageously, design the shape of first prism, second prism and prism, make: the polarized light of first color that first prism produces vertically shines on first sub-pixel, the polarized light of second color that second prism produces vertically shines on second sub-pixel, and the polarized light of the 3rd color that prism produces vertically shines on the 3rd sub-pixel.
Alternatively, as describing with reference to figure 2, the first polarisation unit and spectrophotometric unit can be provided discretely, for example the first polarisation unit is provided as one deck, and spectrophotometric unit is provided as another layer that places on this first polarisation elementary layer.Perhaps, can be on the layer of the described first polarisation unit integrated spectrophotometric unit, that is, the described first polarisation unit comprises the structure for generation of the spectrophotometric unit of described multi beam polarized light.
Alternatively, be appreciated that and in Fig. 3, omitted the first polarisation unit, but exaggerated distance between prism and the lower-glass (first glass substrate).In the case, can comprise structure for generation of the spectrophotometric unit of described multi beam polarized light at first glass substrate.In other words, carved the structure of spectrophotometric unit at first glass substrate.
Alternatively, be appreciated that the light that shines first prism in Fig. 3 is white light, through having produced the light of the color of first quantity, for example light of the light of the light of first color, second color and the 3rd color after first prism.In like manner, the light that shines second prism in Fig. 3 is white light, through having produced the light of the color of first quantity, for example light of the light of the light of first color, second color and the 3rd color after second prism; The light that shines prism in Fig. 3 is white light, through having produced the light of the color of first quantity, for example light of the light of the light of first color, second color and the 3rd color after the prism.The illumination of all first colors be mapped to be attached to lower-glass on the first corresponding polarisation unit of first liquid crystal sub-pixel on and be converted into the polarized light of first color, and shine then on first liquid crystal sub-pixel.In like manner, the illumination of all second colors be mapped to be attached to lower-glass on the first corresponding polarisation unit of second liquid crystal sub-pixel on and be converted into the polarized light of second color, and shine then on second liquid crystal sub-pixel; The illumination of all the 3rd colors be mapped to be attached to lower-glass on the first corresponding polarisation unit of the 3rd liquid crystal sub-pixel on and be converted into the polarized light of the 3rd color, and shine then on the 3rd liquid crystal sub-pixel.
Advantageously, consider that the factors such as distance between distance, sub-pixel and the prism between each sub-pixel design the size of first, second, and third prism, thereby guarantee: only the polarizing light irradiation of first color is to first liquid crystal sub-pixel, only the polarizing light irradiation of second color is to second liquid crystal sub-pixel, only on the polarizing light irradiation to the of the 3rd color three liquid crystal sub-pixels.
Although figure 3 illustrates the structure of three prisms and three sub-pixels, it should be understood that, the invention is not restricted to this, can comprise the prism of other quantity.
Fig. 4 shows the synoptic diagram according to the LCDs of third embodiment of the invention.As shown in Figure 4, liquid crystal pixel comprises first liquid crystal sub-pixel, second liquid crystal sub-pixel, the 3rd liquid crystal sub-pixel and the 4th liquid crystal sub-pixel, and the color of described first quantity comprises first color, second color and the 3rd color.
The 4th liquid crystal sub-pixel is white sub-pixels.For example, described first liquid crystal sub-pixel is red sub-pixel, and second liquid crystal sub-pixel is green sub-pixels, and the 3rd liquid crystal sub-pixel is blue subpixels.
Similar to situation shown in Figure 3, the polarized light of first color vertically shines first liquid crystal pixel, the brilliant pixel of polarized light vertical irradiation second liquid of second color, polarized light vertical irradiation the 3rd liquid crystal sub-pixel of the 3rd color.
Simultaneously, only also should guarantee white polarizing light irradiation to white sub-pixels, and the polarizing light irradiation of other color that does not penetrate from first, second or prism is to white sub-pixels.
Although produce (polarization) light of first color, (polarization) light of second color, (polarization) light of the 3rd color respectively at first prism shown in Fig. 3 and Fig. 4, second prism and prism, yet the invention is not restricted to this.Can block the part of first prism, make its only with (polarization) light vertical irradiation of first color to first liquid crystal sub-pixel.In like manner, can block the part of first prism, make its only with (polarization) light vertical irradiation of second color to second liquid crystal sub-pixel; Can block the part of prism, make them only on (polarization) light vertical irradiation to the three liquid crystal sub-pixels with the 3rd color.
Fig. 5 shows the improved synoptic diagram to prism structure among first to the 3rd embodiment according to the present invention.
Consider that the light that a prism separates is impure, for example the ruddiness of separating through a prism is the ruddiness of 600～800nm scope.In order to obtain purer ruddiness, namely obtain the narrower ruddiness of wavelength coverage, for example the ruddiness of 680～720nm scope.Can so that the ruddiness that penetrates from first prism, second prism, prism again through the 4th prism, the 4th prism makes the red light irradiation of expecting wavelength coverage on red sub-pixel, and make the red light irradiation of 600～680nm wavelength coverage to the black matrix" of red sub-pixel one side, make the red light irradiation of 720～800 wavelength coverages to the black matrix" of red sub-pixel opposite side.
In like manner, can so that the green glow that penetrates from first prism, second prism, prism again through pentaprism, this pentaprism makes the green glow of expectation wavelength coverage shine on the green sub-pixels, and make the green glow be lower than the expectation wavelength coverage shine on the black matrix" of green sub-pixels one side, make to be higher than on the black matrix" that the green glow of expecting wavelength coverage shines the green sub-pixels opposite side.Similarly, can so that the blue light that penetrates from first prism, second prism, prism again through the 6th prism, the 6th prism makes the blue light illumination of expecting wavelength coverage to blue subpixels, and make the blue light illumination be lower than the expectation wavelength coverage to the black matrix" of blue subpixels one side, make be higher than expect wavelength coverage blue light illumination to the black matrix" of blue subpixels opposite side.
Next, will be described with reference to Figure 6 according to liquid crystal display method 100 of the present invention.
Liquid crystal display method 100 according to the embodiment of the invention begins at step S101.
At step S110, area source sends white light.
At step S120, from described generating white light multi beam polarized light, the every bundle polarized light in the described multi beam polarized light has a kind of color in the color of first quantity, and the color of described first quantity does not comprise white.
Next, at step S130, the liquid crystal sub-pixel in the liquid crystal pixel receives the polarized light with first predetermined polarisation direction of its corresponding color and produces postrotational polarized light.
Then, at step S140, see through the polarized light with second predetermined polarisation direction.
At last, the liquid crystal display method according to the embodiment of the invention finishes at step S199.
Preferably, in step S120, comprise following substep from described generating white light multi beam polarized light: the white polarized light that has the first predetermined polarisation direction from described generating white light; And produce described multi beam polarized light from described white polarized light.
Alternatively, comprise following substep from described generating white light multi beam polarized light in step S120: described white light is divided into multi-beam, and the every Shu Guang in the described multi-beam has a kind of color in the color of first quantity; And produce the described multi beam polarized light with first predetermined polarisation direction respectively from described multi-beam.
The color of described first quantity comprises first color, second color and the 3rd color.Produce described multi beam polarized light by spectrophotometric unit from described white polarized light, described spectrophotometric unit comprises a prism.This prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color.
Preferably, described spectrophotometric unit comprises first prism placed side by side, second prism and prism.First prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color; Second prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color; Prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color.The polarized light of first color that first prism, second prism and prism produce is irradiated on first liquid crystal sub-pixel, the polarized light of second color that first prism, second prism and prism produce is irradiated on second liquid crystal sub-pixel, and the polarized light of the 3rd color that first prism, second prism and prism produce is irradiated on the 3rd liquid crystal sub-pixel.First prism, second prism and prism produce belongs on the liquid crystal sub-pixel of the corresponding color in the liquid crystal sub-pixel that polarized light with a kind of color is irradiated to described second quantity.
Alternatively, from the described multi-beam of described generating white light, described spectrophotometric unit comprises a prism by spectrophotometric unit.This prism produces three-beam, corresponds respectively to first color, second color and the 3rd color.
Preferably, described spectrophotometric unit comprises first prism placed side by side, second prism and prism.First prism produces three-beam, corresponds respectively to first color, second color and the 3rd color; Second prism produces three-beam, corresponds respectively to first color, second color and the 3rd color; Prism produces three-beam, corresponds respectively to first color, second color and the 3rd color.The light of first color that first prism, second prism and prism produce is converted into the polarized light of first color then, and is irradiated to then on first liquid crystal sub-pixel.The light of second color that first prism, second prism and prism produce is converted into the polarized light of second color then, and is irradiated to then on second liquid crystal sub-pixel.The light of the 3rd color that first prism, second prism and prism produce is converted into the polarized light of the 3rd color then, and is irradiated to then on the 3rd liquid crystal sub-pixel.
Preferably, liquid crystal display method 100 according to the embodiment of the invention also comprises: the polarized light that belongs to first color that first prism, second prism and prism produce is irradiated on the 4th prism, and wherein the polarized light of at least a portion first color is through the 4th prism and shines on first liquid crystal sub-pixel; The polarized light that belongs to second color that first prism, second prism and prism produce is irradiated on the pentaprism, and wherein the polarized light of at least a portion second color is through pentaprism and shines on second liquid crystal sub-pixel; And the polarized light that belongs to the 3rd color that first prism, second prism and prism produce is irradiated on the 6th prism, and wherein the polarized light of at least a portion the 3rd color is through the 6th prism and shines on the 3rd liquid crystal sub-pixel.
Alternatively, liquid crystal display method 100 according to the embodiment of the invention also comprises: the light that belongs to first color that first prism, second prism and prism produce is irradiated on the 4th prism, wherein light transmission the 4th prism of at least a portion first color also is converted into the polarized light with a kind of color then, is irradiated to then on described first liquid crystal sub-pixel; The light that belongs to second color that first prism, second prism and prism produce is irradiated on the pentaprism, wherein the light transmission pentaprism of at least a portion second color also is converted into the polarized light with a kind of color then, is irradiated to then on described second liquid crystal sub-pixel; And the light that belongs to the 3rd color that first prism, second prism and prism produce is irradiated on the 6th prism, wherein light transmission the 6th prism of at least a portion the 3rd color also is converted into the polarized light with a kind of color then, is irradiated to then on described the 3rd liquid crystal sub-pixel.
LCDs and liquid crystal display method according to the embodiment of the invention have been described with reference to the drawings above, wherein adopt prism and polaroid combination results polarized color light, and for a liquid crystal sub-pixel (for example, red sub-pixel) polarized light that a kind of color only arranged (for example, red polarized light) shines on it, thereby make and in LCDs, need not to adopt color film to carry out color filtration.As a result, greatly reduce cost and the manufacture difficulty of LCDs.
Should be appreciated that the description that provides here, those of ordinary skill in the related art can expect of the present invention these and similarly realize or configuration.
Although describe some embodiments of the present invention here with reference to the accompanying drawings, should be appreciated that described embodiment only is illustrative, and not restrictive.It will be appreciated by those skilled in the art that under the situation of the scope and spirit of the present invention that in not deviating from claim and equivalent thereof, limit, can make variation on various forms and the details to these exemplary embodiments.
Claims (18)
1. liquid crystal display method comprises:
Area source sends white light;
From described generating white light multi beam polarized light, the every bundle polarized light in the described multi beam polarized light has a kind of color in the color of first quantity, and the color of described first quantity does not comprise white;
Liquid crystal sub-pixel in the liquid crystal pixel receives the polarized light with first predetermined polarisation direction of its corresponding color and produces postrotational polarized light; And
See through the polarized light with second predetermined polarisation direction.
2. liquid crystal display method as claimed in claim 1 wherein, comprises from described generating white light multi beam polarized light:
The white polarized light that has the first predetermined polarisation direction from described generating white light; And
Produce described multi beam polarized light from described white polarized light.
3. liquid crystal display method as claimed in claim 1 wherein, comprises from described generating white light multi beam polarized light:
Described white light is divided into multi-beam, and the every Shu Guang in the described multi-beam has a kind of color in the color of first quantity; And
Produce the described multi beam polarized light with first predetermined polarisation direction respectively from described multi-beam.
4. liquid crystal display method as claimed in claim 2, wherein, the color of described first quantity comprises first color, second color and the 3rd color,
Produce described multi beam polarized light by spectrophotometric unit from described white polarized light, described spectrophotometric unit comprises first prism placed side by side, second prism and prism,
First prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color;
Second prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color;
Prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color;
Wherein, first prism, second prism and prism produce belongs on the liquid crystal sub-pixel of the corresponding color in the liquid crystal sub-pixel that polarized light with a kind of color is irradiated to described second quantity.
5. liquid crystal display method as claimed in claim 3, wherein, the color of described first quantity comprises first color, second color and the 3rd color,
From the described multi-beam of described generating white light, described spectrophotometric unit comprises first prism placed side by side, second prism and prism by spectrophotometric unit,
First prism produces three-beam, corresponds respectively to first color, second color and the 3rd color;
Second prism produces three-beam, corresponds respectively to first color, second color and the 3rd color;
Prism produces three-beam, corresponds respectively to first color, second color and the 3rd color;
Wherein, first prism, second prism and prism produce belongs to light with a kind of color and is converted into polarized light with a kind of color then, and is irradiated to then on the liquid crystal sub-pixel of the corresponding color in the liquid crystal sub-pixel of described second quantity.
6. liquid crystal display method as claimed in claim 4, wherein, each liquid crystal pixel comprises first liquid crystal sub-pixel, second liquid crystal sub-pixel and the 3rd liquid crystal sub-pixel at least,
Described liquid crystal display method also comprises:
The polarized light that belongs to first color that first prism, second prism and prism produce is irradiated on the 4th prism, and wherein the polarized light of at least a portion first color is through the 4th prism and shines on first liquid crystal sub-pixel;
The polarized light that belongs to second color that first prism, second prism and prism produce is irradiated on the pentaprism, and wherein the polarized light of at least a portion second color is through pentaprism and shines on second liquid crystal sub-pixel; And
The polarized light that belongs to the 3rd color that first prism, second prism and prism produce is irradiated on the 6th prism, and wherein the polarized light of at least a portion the 3rd color is through the 6th prism and shines on the 3rd liquid crystal sub-pixel.
7. liquid crystal display method as claimed in claim 5, wherein, each liquid crystal pixel comprises first liquid crystal sub-pixel, second liquid crystal sub-pixel and the 3rd liquid crystal sub-pixel at least,
Described liquid crystal display method also comprises:
The light that belongs to first color that first prism, second prism and prism produce is irradiated on the 4th prism, wherein light transmission the 4th prism of at least a portion first color also is converted into the polarized light with a kind of color then, is irradiated to then on described first liquid crystal sub-pixel;
The light that belongs to second color that first prism, second prism and prism produce is irradiated on the pentaprism, wherein the light transmission pentaprism of at least a portion second color also is converted into the polarized light with a kind of color then, is irradiated to then on described second liquid crystal sub-pixel; And
The light that belongs to the 3rd color that first prism, second prism and prism produce is irradiated on the 6th prism, wherein light transmission the 6th prism of at least a portion the 3rd color also is converted into the polarized light with a kind of color then, is irradiated to then on described the 3rd liquid crystal sub-pixel.
8. LCDs comprises:
Back light unit is used for sending white light as area source;
First optical texture comprises the first optical unit array, and it has a plurality of first optical units;
Liquid crystal pixel array comprises a plurality of liquid crystal pixels;
Second optical texture comprises the second optical unit array, and it has a plurality of second optical units;
Wherein, first optical unit, liquid crystal pixel and second optical unit are corresponding uniquely;
Each first optical unit be used for to receive the white light that back light unit sends and produces the multi beam polarized light, and the every bundle polarized light in the described multi beam polarized light has a kind of color in the color of first quantity, and the color of described first quantity does not comprise white;
Each liquid crystal pixel comprises the liquid crystal sub-pixel of second quantity, wherein, each liquid crystal sub-pixel at least a portion liquid crystal sub-pixel receives the polarized light with first predetermined polarisation direction of corresponding color and produces postrotational polarized light from first optical unit of its correspondence; And
Each second optical unit receives the postrotational polarized light that is produced by its corresponding liquid crystal sub-pixel and sees through the polarized light with second predetermined polarisation direction.
9. LCDs as claimed in claim 8, wherein, described first optical unit comprises:
The first polarisation unit is used for receiving described white light, and sees through the white polarized light with first predetermined polarisation direction;
Spectrophotometric unit is used for receiving the white polarized light that the described first polarisation unit produces, and produces described multi beam polarized light; And
First glass substrate is used for supporting liquid crystal pixel.
10. LCDs as claimed in claim 8, wherein, described first optical unit comprises:
Spectrophotometric unit is used for the white light that receives is divided into multi-beam, and the every Shu Guang in the described multi-beam has a kind of color in the color of first quantity;
The first polarisation unit of first quantity corresponds respectively to the color of described first quantity, and each first polarisation unit is used for receiving the light of corresponding color, and sees through the polarized light of the corresponding color with first predetermined polarisation direction; And
First glass substrate is used for supporting liquid crystal cells.
11. LCDs as claimed in claim 8, wherein, described first optical unit comprises:
The first polarisation unit is used for receiving described white light, and sees through the white polarized light with first predetermined polarisation direction; And
First glass substrate is used for receiving the white polarized light of described first polarisation unit generation and producing described multi beam polarized light, and is used for supporting liquid crystal cells, wherein,
Described first glass substrate comprises the structure for generation of the spectrophotometric unit of described multi beam polarized light.
12. LCDs as claimed in claim 8, wherein, described first optical unit comprises:
The first polarisation unit is used for receiving described white light and producing described multi beam polarized light, and described multi beam polarized light has the first predetermined polarisation direction; And
First glass substrate is used for supporting liquid crystal cells, wherein,
The described first polarisation unit comprises the structure for generation of the spectrophotometric unit of described multi beam polarized light.
13. as claim 9 or 11 described LCDs, wherein, the liquid crystal sub-pixel of described second quantity comprises first liquid crystal sub-pixel, second liquid crystal sub-pixel and the 3rd liquid crystal sub-pixel, and the color of described first quantity comprises first color, second color and the 3rd color;
Described spectrophotometric unit comprises first prism placed side by side, second prism and prism,
First prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color;
Second prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color;
Prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color;
Wherein, first prism, second prism and prism produce belongs on the liquid crystal sub-pixel of the corresponding color in the liquid crystal sub-pixel that polarized light with a kind of color is irradiated to described second quantity.
14. as claim 10 or 12 described LCDs, wherein, the liquid crystal sub-pixel of described second quantity comprises first liquid crystal sub-pixel, second liquid crystal sub-pixel and the 3rd liquid crystal sub-pixel, and the color of described first quantity comprises first color, second color and the 3rd color;
Described spectrophotometric unit comprises first prism placed side by side, second prism and prism,
First prism produces three-beam, corresponds respectively to first color, second color and the 3rd color;
Second prism produces three-beam, corresponds respectively to first color, second color and the 3rd color;
Prism produces three-beam, corresponds respectively to first color, second color and the 3rd color;
Wherein, first prism, second prism and prism produce belongs on the first polarisation unit of the corresponding color in the first polarisation unit that light with a kind of color is irradiated to described first quantity.
15. LCDs as claimed in claim 13 also comprises: the 4th prism, pentaprism and the 6th prism,
The polarized light that belongs to first color that first prism, second prism and prism produce is irradiated on the 4th prism, and wherein the polarized light of at least a portion first color is through the 4th prism and shines on first liquid crystal sub-pixel;
The polarized light that belongs to second color that first prism, second prism and prism produce is irradiated on the pentaprism, and wherein the polarized light of at least a portion second color is through pentaprism and shines on second liquid crystal sub-pixel; And
The polarized light that belongs to the 3rd color that first prism, second prism and prism produce is irradiated on the 6th prism, and wherein the polarized light of at least a portion the 3rd color is through the 6th prism and shines on the 3rd liquid crystal sub-pixel.
16. LCDs as claimed in claim 14 also comprises: the 4th prism, pentaprism and the 6th prism,
The light that belongs to first color that first prism, second prism and prism produce is irradiated on the 4th prism, wherein light transmission the 4th prism of at least a portion first color and being irradiated on the first polarisation unit of corresponding color;
The light that belongs to second color that first prism, second prism and prism produce is irradiated on the pentaprism, wherein the light transmission pentaprism of at least a portion second color and being irradiated on the first polarisation unit of corresponding color; And
The light that belongs to the 3rd color that first prism, second prism and prism produce is irradiated on the 6th prism, wherein light transmission the 6th prism of at least a portion the 3rd color and being irradiated on the first polarisation unit of corresponding color.
17. as claim 9 or 11 described LCDs, wherein, the liquid crystal sub-pixel of described second quantity comprises first liquid crystal sub-pixel, second liquid crystal sub-pixel, the 3rd liquid crystal sub-pixel and the 4th liquid crystal sub-pixel, described the 4th liquid crystal sub-pixel is white sub-pixels, and the color of described first quantity comprises first color, second color and the 3rd color;
Described spectrophotometric unit comprises first prism placed side by side, second prism and prism,
First prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color;
Second prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color;
Prism produces the three beams polarized light, corresponds respectively to first color, second color and the 3rd color;
Wherein, first prism, second prism and prism produce belongs on the liquid crystal sub-pixel of the corresponding color in the liquid crystal sub-pixel that polarized light with a kind of color is irradiated to described second quantity.
18. LCDs as claimed in claim 8, wherein, described backlight comprises LED source and light guide plate.
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