CN1226658C - LCD device and lighting method thereof - Google Patents
LCD device and lighting method thereof Download PDFInfo
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- CN1226658C CN1226658C CN 02142477 CN02142477A CN1226658C CN 1226658 C CN1226658 C CN 1226658C CN 02142477 CN02142477 CN 02142477 CN 02142477 A CN02142477 A CN 02142477A CN 1226658 C CN1226658 C CN 1226658C
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Abstract
The present invention relates to a liquid crystal display device and a luminescence method thereof. A liquid crystal display device comprises a luminescence array which comprises multi-array independent light sources, and each group of independent light sources comprise luminescence assemblies of light in three primary colours which comprise red, blue and green; a homogenizing plate is arranged before the luminescence array to homogenize light emitted by the luminescence assemblies of three primary colours; a first polarizing plate is arranged before the homogenizing plate, a liquid crystal panel is arranged before the first polarizing plate, a second polarizing plate is arranged before the liquid crystal panel, wherein the homogenizing plate comprises a plurality of light penetration regions, and mutual interference between light which passes through a light penetration region and light which passes through contiguous light penetration regions is avoided. Each group of independent light sources can select one of eight possible luminescence colour combinations in the same luminescence time, and the combination of all luminescence colours is completed in eight luminescence time lengths.
Description
Technical field
The present invention relates to a kind of liquid crystal indicator, refer to that especially a kind of primaries light-emitting component list type ground (sequentially) that utilizes is luminous to strengthen the liquid crystal indicator of resolution and full-color display effect.The present invention provides a kind of luminescent method that is used for above-mentioned liquid crystal indicator in addition.
Background technology
See also Fig. 1, Fig. 1 is the schematic internal view of prior art liquid crystal indicator 10.Liquid crystal indicator 10 includes a white light source 12, one vertical Polarizer 13, a display panels (LCD panel) 14 includes two glass substrates 15 that one in front and one in back are provided with and liquid crystal molecule 16, a color optical filter (color filter) the 17 and one horizontal Polarizer 18 of being located at 15 of two glass substrates.
When glass substrate 15 is subjected to extra electric field (not shown) driving, can make liquid crystal molecule 16 produce turns to, also be by the turning to of liquid crystal molecule 16, the liquid crystal molecule 16 that makes the incident light of white light source 15 can be diverted after passing rear end glass substrate 15 intercepts or incident angle and the variation by light quantity is arranged.Liquid crystal molecule 16 whether turn to and steering angle is related has influence on colors of image and the bright degree that liquid crystal indicator 10 is presented.Because liquid crystal indicator 10 is to utilize a white light source 12 as backlight, thus need color filter 17 allow respectively white light source 12 three kinds of included primary colors coloured light be able to respectively by, present the color effect of shown image.Need again through a horizontal Polarizer 18 with imaging on the LCDs (not shown) through the primitive color light behind the color filter 17.
For instance, the prior art liquid crystal indicator if its optimum resolution be M*N pixel (pixel) (in general, the resolution of liquid crystal indicator can be adjusted difference with the size of display card internal memory with cathode ray tube (CRT) display device resolution, in general the color resolution that shows when the big more energy of display card internal memory is just high more), represent exactly to have M*N thin film transistor (TFT) (this sentences TFT-LCD is example) on this liquid crystal indicator 10.These thin film transistor (TFT)s after receiving certain control voltage, just can be used to control liquid crystal molecule open or close with and the degree of folding.The image-forming principle of the liquid crystal indicator 10 of prior art is that the folding (degree) by mixing that three kinds of primary colors coloured light were just arranged with the time and the liquid crystal molecule that above-mentioned thin film transistor (TFT) is controlled decides.Therefore specified M*N resolution is for red bluish-green three kinds of primary colors coloured light, owing to be the mixing of three kinds of primary colors coloured light when imaging, so from the angle of each primary colors coloured light, resolution has only 1/3rd of M*N in fact.In addition, around its display screen of prior art display device,,, take place and have ambiguous situation so be difficult for average show image color owing to not necessarily have corresponding liquid crystal molecule setting.
Summary of the invention
Fundamental purpose of the present invention, be to provide a kind of luminescent method, particularly a kind of method (these coloured light are all based on three kinds of primary colors coloured light) of list type emission different colours coloured light, adopt the LCD Panel of the method when a certain special time, only to show a kind of in red bluish-green three kinds of primary colors coloured light, or the mixing of its two kinds of primitive color lights, or it is not make three kinds of primitive color light light-emitting components simultaneously luminous, or luminous.So when a certain special time, one has eight kinds of possible selections.Thereby can fully have the resolution of M*N pixel to each primary colors coloured light, owing to added black and white (coloured light), also therefore strengthen this kind contrast of LCD effect simultaneously as the usefulness of adjusting red bluish-green three primary colors.
In order to reach above-mentioned purpose, the invention provides a kind of liquid crystal indicator, include a light emitting array and include a plurality of arbitrary sources, each arbitrary source includes red bluish-green three kinds of primitive color light light-emitting components, one even plate is located at before this light emitting array, is used for homogenising by the emitted light of primitive color light light-emitting component, and one first Polarizer is located at before the even plate, one liquid crystal board is located at before first Polarizer, and one second Polarizer is located at before the liquid crystal board.Wherein evenly plate includes several light penetrating regions, and the light mutually noninterfere each other by the adjacent light penetrating region makes that a certain viewing area only shows a kind of color when a certain fluorescent lifetime.
The present invention provides a kind of luminescent method of liquid crystal indicator in addition, wherein, one liquid crystal indicator includes a light emitting array, this light emitting array includes a plurality of arbitrary sources, each arbitrary source includes red bluish-green three kinds of primitive color light light-emitting components and is used for launching a primary red light, a blue primaries light and a green primitive color light respectively, one even plate is located at before this light emitting array, be used for homogenising by the emitted light of this primitive color light light-emitting component, one first Polarizer is located at before this even plate, and a liquid crystal panel is located at before this first Polarizer; And one second Polarizer be located at before this liquid crystal board, include the following step: cut apart this light emitting array virtually, make into several light-emitting zones; With regard to a certain this light-emitting zone, make in its in first to the 8th fluorescent lifetime to have mutually different luminance, this luminance is a kind of in following eight kinds of luminances: only launch primary red light, only launch blue primaries light, only the transmitting green primitive color light, only launch white light, only launch redness and add blue primaries light, only launch that redness adds green primitive color light, only transmitting green adds blue primaries light and not luminous; Wherein this even plate includes several light penetrating regions, and this primary red light, this blue primaries light, this green primitive color light, this white light, this redness by two adjacent these light penetrating regions adds blue primaries light, this redness adds green primitive color light and this green adds the mutually noninterfere each other of blue primaries light.
The luminescent method of liquid crystal indicator of the present invention only shows that in same fluorescent lifetime eight kinds of above-mentioned glow colors make up one of them, and in next nonoverlapping fluorescent lifetime, continue demonstration another color except the above-mentioned color that had shown, can in eight continuous fluorescent lifetimes, finish all possible color combination by that analogy.Then decide by the folding degree size of liquid crystal molecule in addition as for luminous color intensity, and the control of the selection of above these glow colors and intensity, by a control integrated circuit chip for it.
Description of drawings
Fig. 1 is the schematic internal view of prior art liquid crystal indicator;
Fig. 2 A is the schematic internal view of liquid crystal indicator of the present invention;
Fig. 2 B is the synoptic diagram of Fig. 2 A light emitting array;
Fig. 2 C is the synoptic diagram of the even plate of Fig. 2 A;
Fig. 2 D is another embodiment of Fig. 2 A light emitting array;
Fig. 3 A to Fig. 3 D is the light sequences synoptic diagram of liquid crystal indicator luminescent method of the present invention;
Fig. 4 is another embodiment of luminescent method light sequences of the present invention.
Symbol description
50 liquid crystal indicators, 51 light emitting arrays
52 even plate 53 first Polarizers
54 liquid crystal panels, 55 second Polarizers
511 arbitrary sources
512,513,514 primitive color light light-emitting components
521 smooth penetrating region 522 connecting portions
523 gaps
Embodiment
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet accompanying drawing only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.
See also Fig. 2 A to Fig. 2 C.Fig. 2 A is the schematic internal view of liquid crystal indicator 50 of the present invention.The liquid crystal indicator 50 minimum light emitting arrays 51 that include, one even plate 52 is located at before the light emitting array 51, one first Polarizer 53 places before the even plate 52, and a liquid crystal panel 54 is located at before first Polarizer 53, and one second Polarizer 55 is located at before the liquid crystal panel 54.Fig. 2 B is the synoptic diagram of Fig. 2 A light emitting array 51.The light emitting array 51 of Fig. 2 A includes several arbitrary sources 511, each arbitrary source 511 includes the primitive color light light-emitting component 512,513 and 514 of red bluish-green three kinds of different colours, and in same fluorescent lifetime, has only a kind of primitive color light light-emitting component 512,513 or 514 is luminous, otherwise be that the three is luminous or not luminous to form a white light or a relative black light (because there is not so-called black light, so use relative two words), and eight kinds of possible luminous combinations altogether such as any two primitive color light light-emitting components 512,513 or 514 are luminous.Fig. 2 C is the synoptic diagram of even plate 52 among Fig. 2 A.Evenly plate 52 is used for the emitted primitive color light light of homogenising primitive color light light-emitting component 512,513 and 514, and in addition the even plate 52 of liquid crystal indicator of the present invention is processed the zigzag that is designed to shown in Fig. 2 C.Primitive color light light-emitting component 512,513 and 514 can be a light emitting diode (LED) or an Organic Light Emitting Diode (OLED).
Preferably, the even plate 52 of zigzag includes several light penetrating regions 521 in addition, and the connecting portion 522 of 521 of adjacent two smooth penetrating regions is designed to guarantee do not interfered with one another by the light of a smooth penetrating region 521 and the light of another light penetrating region 521 by light emitting array 51 emissions.Thus, because each arbitrary source 511 is only launched a kind of in above-mentioned eight kinds of color combination in single fluorescent lifetime, making does not have mutual mix possible by a certain smooth penetrating region 521 and the light of adjacent light penetrating region 521.
Please continue to consult Fig. 2 D in addition, Fig. 2 D is the synoptic diagram of another embodiment of the light emitting array 51 of liquid crystal indicator of the present invention.Each arbitrary source 511 has included three primary colors coloured light light-emitting component 512,513 and 514, and 511 of adjacent each arbitrary sources have a gap (gap) 523 to separate in addition, make each arbitrary source 511 in a certain specific fluorescent lifetime, have only a kind of color to show, do not take place and do not have situation about interfering with each other in its corresponding display.Concerning a certain light-emitting zone wherein, in certain first fluorescent lifetime be not emit white light or three kinds of primary colors coloured light one of them, or two kinds mixing in three kinds of primary colors coloured light, or not luminous.And in next fluorescent lifetime (second fluorescent lifetime just), the light that this light-emitting zone sent will be got rid of the selected luminous kind of above-mentioned first fluorescent lifetime, and must from other seven kinds may selected the demonstration of this kind liquid crystal indicator can the finish possible color of institute that the rest may be inferred in eight continuous nonoverlapping fluorescent lifetimes.
See also Fig. 3 A to Fig. 3 D, Fig. 3 A to Fig. 3 D uses display packing of the present invention in continuous four fluorescent lifetimes, the display sequence synoptic diagram of liquid crystal indicator.Fig. 3 A to Fig. 3 D is an example with three kinds of primitive color lights, when only using three kinds of primary colors coloured light to do switching, only needs three fluorescent lifetime length altogether, just can finish a luminous samsara (cycle).As shown in Figure 3A, in first fluorescent lifetime, only launch a red light, only launch a green light in second fluorescent lifetime afterwards, only launch a blue light in the 3rd fluorescent lifetime after again.Under the situation of only selecting three kinds of primary colors coloured light, after three fluorescent lifetime length (just in the 4th fluorescent lifetime), this liquid crystal indicator is launched a red light once again.Light emitting array can utilize control crystal circuit chip (not shown) to cut into several light-emitting zones virtually, and a certain specific light-emitting zone is in a certain specific fluorescent lifetime, only launch three kinds of primary colors coloured light one of them or all luminous or all not luminous, or two kinds mixing (, blue red and red green) in three kinds of primary colors coloured light as bluish-green.
Shown in Fig. 3 B, light emitting array is cut into the light-emitting zone of three horizontally-arrangeds virtually, and each light-emitting zone is only launched the coloured light of solid color at a certain specific fluorescent lifetime.In first fluorescent lifetime, last horizontally-arranged light-emitting zone is all launched red light, and middle horizontally-arranged light-emitting zone is a green light, and following horizontally-arranged light-emitting zone then is a blue light.And in second fluorescent lifetime, upper, middle and lower horizontally-arranged light-emitting zone is launched blue red-green glow respectively, and this three horizontally-arrangeds light-emitting zone is launched turquoise ruddiness respectively in the 3rd fluorescent lifetime.After the 3rd fluorescent lifetime finishes, each light-emitting zone has all been finished a complete luminous samsara (light of being launched by each horizontally-arranged light-emitting zone of the 4th fluorescent lifetime is identical with first fluorescent lifetime as can be known), under the visual persistence effect that switches in the human body naked eyes of this different colours, though be the light of list type ground emission different colours, but cooperate the folding degree of liquid crystal molecule on the different time length of each fluorescent lifetime and the display device, can reach the effect of full-color demonstration equally.Fig. 3 C is identical with Fig. 3 B, only is to make in line from original horizontally-arranged on the light-emitting zone of control light emitting array.As for Fig. 3 D, light emitting array is cut into nine light-emitting zones altogether virtually, and according to aforementioned identical principle, each light-emitting zone is only launched a kind of light of color in same fluorescent lifetime.Only being noted that in a certain specific fluorescent lifetime (as the first above-mentioned fluorescent lifetime), is not must transmitting green light, and selected light color is interchangeable each other in each fluorescent lifetime.
See also Fig. 4, Fig. 4 is another embodiment of sequence display packing of the present invention.In the present embodiment except three kinds of primary colors coloured light, not luminous (dark fully red bluish-green light-emitting component while luminous (forming a white light) and this three light-emitting component in addition, can be considered a black light) include in, so one has five kinds may be available, therefore each light-emitting zone desires to finish a whole luminous samsara, just needs five fluorescent lifetime length altogether.Identical with Fig. 3 D, Fig. 4 also utilizes light emitting array the control integrated circuit chip to cut into nine light-emitting zones virtually, and each light-emitting zone is all launched these five kinds of possible coloured light (red bluish-green black and white) respectively once in these continuous five fluorescent lifetime length.When the three primary colors light-emitting component was not luminous or all luminous, black light that is produced (comparatively speaking) and white light all were to be used for being in harmonious proportion original three kinds of different colours primary colors coloured light, made the color contrast of desiring display image therefore to increase.And in each fluorescent lifetime (from first fluorescent lifetime to the, five fluorescent lifetimes), the coloured light color that each light-emitting zone is launched (each once is as the criterion) all inequality, and do not limit to the light that a certain fluorescent lifetime must be launched a certain particular color.Glow color selected different because of being each different image-region or pixel can be replaced mutually each other.
Than prior art, the backlight luminescent method that the invention provides a kind of liquid crystal indicator and be applicable to this kind display device.A minimum light emitting array and the even plate through special processing design of including of this kind liquid crystal indicator, wherein evenly plate includes several light penetrating regions and is used for by by the emitted light of light emitting array (having red bluish-green and white or not luminous available), and the light of adjacent light penetrating region does not interfere with each other each other, make that in same fluorescent lifetime the glow color of adjacent light penetrating region has nothing in common with each other.Utilize the luminescent method of this kind list type, can improve the resolution and the full-color contrast of this liquid crystal indicator.In addition, luminescent method of the present invention must can be implemented to finish in minimum three fluorescent lifetimes, so that at least three kinds of coloured light (comprising all non-luminous situation of primitive color light light-emitting component) can both be shown once at least.Three kinds of included primitive color light light-emitting components of each arbitrary source in the light emitting array, it is all luminous or not luminous to be to be used for increasing white and black adjusting the toning that red bluish-green three kinds of primary colors coloured light were originally only arranged, thereby strengthens the color contrast of entire liquid crystal display device.
With regard to three kinds of basic primary colors coloured light, one has eight kinds of possible color combination.So the embodiment of another possibility only launches primary red light for regard to a certain specific light-emitting zone in one first fluorescent lifetime; In one second fluorescent lifetime, only launch blue primaries light; Transmitting green primitive color light only in one the 3rd fluorescent lifetime; Not luminous in one the 4th fluorescent lifetime; Emission redness simultaneously, blueness and green primitive color light are to form a white light in one the 5th fluorescent lifetime; In one the 6th fluorescent lifetime, only launch primary red light and blue primaries light; In one the 7th fluorescent lifetime, only launch primary red light and green primitive color light; And in one the 8th fluorescent lifetime, only launch blue primaries light and green primitive color light.First to the 8th above-mentioned fluorescent lifetime does not overlap each other, and the time span of each fluorescent lifetime changes to some extent according to different display images fully.
Than prior art, liquid crystal indicator provided by the present invention and luminescent method thereof, be the different solid color coloured light of emission in different fluorescent lifetimes, and utilize the principle of the persistence of vision of human body to reach the effect that color shows equally, and do not need the setting of extra color filter.In addition, because for each color coloured light, its resolution can both be identical with the rated resolution on the display device, and around display screen, do not have ambiguous situation (being the effect that comes from persistence of vision equally), in addition because the full-luminous or whole non-luminous addings of light-emitting component more can strengthen the performance of liquid crystal indicator of the present invention on color contrast.
The above only is preferred embodiment of the present invention, and is all according to the equivalence variation that the present invention did, and all should belong to the covering scope of patent of the present invention.
Claims (12)
1. a liquid crystal indicator is characterized in that, includes:
One light emitting array includes a plurality of arbitrary sources, and each arbitrary source includes red bluish-green three kinds of primitive color light light-emitting components;
One even plate is located at before this light emitting array;
One first Polarizer is located at before this even plate;
One liquid crystal panel is located at before this first Polarizer; And
One second Polarizer is located at before this liquid crystal board;
Wherein this even plate includes several light penetrating regions, and passes through the ejaculation light mutually noninterfere each other of this arbitrary source of two adjacent these light penetrating regions; Each arbitrary source only sends a solid color light in same fluorescent lifetime, and this even plate is used for this solid color light of homogenising.
2. liquid crystal indicator as claimed in claim 1 is characterized in that, this primitive color light light-emitting component can be lighted or not light simultaneously, to form eight groups of these different solid color light altogether.
3. liquid crystal indicator as claimed in claim 1 is characterized in that, includes a junction between per two these light penetrating regions.
4. liquid crystal indicator as claimed in claim 1 is characterized in that, is provided with a gap between between the adjacent arbitrary source to separate.
5. liquid crystal indicator as claimed in claim 1 is characterized in that, this primitive color light light-emitting component is a light emitting diode.
6. liquid crystal indicator as claimed in claim 1 is characterized in that, this primitive color light light-emitting component is an Organic Light Emitting Diode.
7. the luminescent method of a liquid crystal indicator, it is characterized in that, one liquid crystal indicator includes a light emitting array, this light emitting array includes a plurality of arbitrary sources, each arbitrary source includes red bluish-green three kinds of primitive color light light-emitting components and is used for launching a primary red light, a blue primaries light and a green primitive color light respectively, one even plate is located at before this light emitting array, be used for homogenising by the emitted light of this primitive color light light-emitting component, one first Polarizer is located at before this even plate, and a liquid crystal panel is located at before this first Polarizer; And one second Polarizer be located at before this liquid crystal board, include the following step:
Cut apart this light emitting array virtually, make into several light-emitting zones;
With regard to a certain this light-emitting zone, make in its in first to the 8th fluorescent lifetime to have mutually different luminance, this luminance is a kind of in following eight kinds of luminances: only launch primary red light, only launch blue primaries light, only the transmitting green primitive color light, only launch white light, only launch redness and add blue primaries light, only launch that redness adds green primitive color light, only transmitting green adds blue primaries light and not luminous;
Wherein this even plate includes several light penetrating regions, and this primary red light, this blue primaries light, this green primitive color light, this white light, this redness by two adjacent these light penetrating regions adds blue primaries light, this redness adds green primitive color light and this green adds the mutually noninterfere each other of blue primaries light.
8. luminescent method as claimed in claim 7 is characterized in that,
With regard to a certain this light-emitting zone, in one first fluorescent lifetime, only launch this primary red light;
With regard to a certain this light-emitting zone, in one second fluorescent lifetime, only launch this blue primaries light;
With regard to a certain this light-emitting zone, in one the 3rd fluorescent lifetime, only launch this green primitive color light;
With regard to a certain this light-emitting zone, not luminous in one the 4th fluorescent lifetime;
With regard to a certain this light-emitting zone, in one the 5th fluorescent lifetime, launch this redness, blueness and green primitive color light simultaneously to form a white light;
With regard to a certain this light-emitting zone, in one the 6th fluorescent lifetime, only launch this primary red light and this blue primaries light;
With regard to a certain this light-emitting zone, in one the 7th fluorescent lifetime, only launch this primary red light and should the green primitive color light; And
With regard to a certain this light-emitting zone, in one the 8th fluorescent lifetime, only launch this blue primaries light and should the green primitive color light.
9. as claim 7 or 8 described luminescent methods, it is characterized in that this primitive color light light-emitting component is a light emitting diode.
10. as claim 7 or 8 described luminescent methods, it is characterized in that this primitive color light light-emitting component is an Organic Light Emitting Diode.
11., it is characterized in that this first to the 8th fluorescent lifetime does not overlap each other each other as claim 7 or 8 described luminescent methods.
12., it is characterized in that the length of this first to the 8th fluorescent lifetime is determined by the control integrated circuit chip in this liquid crystal indicator as claim 7 or 8 described luminescent methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02142477 CN1226658C (en) | 2002-09-20 | 2002-09-20 | LCD device and lighting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02142477 CN1226658C (en) | 2002-09-20 | 2002-09-20 | LCD device and lighting method thereof |
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| CN1484073A CN1484073A (en) | 2004-03-24 |
| CN1226658C true CN1226658C (en) | 2005-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02142477 Expired - Fee Related CN1226658C (en) | 2002-09-20 | 2002-09-20 | LCD device and lighting method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009086737A1 (en) | 2008-01-04 | 2009-07-16 | Geele Corporation | Display method,display device and display apparatus |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4603881B2 (en) * | 2004-12-28 | 2010-12-22 | キヤノン株式会社 | Illumination device and photographing device |
| JP4831729B2 (en) * | 2005-08-05 | 2011-12-07 | Ｎｌｔテクノロジー株式会社 | Variable viewing angle liquid crystal display device, method and terminal |
| CN104793393A (en) * | 2015-04-29 | 2015-07-22 | 京东方科技集团股份有限公司 | Display panel and display device |
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2002
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009086737A1 (en) | 2008-01-04 | 2009-07-16 | Geele Corporation | Display method,display device and display apparatus |
| US9025105B2 (en) | 2008-01-04 | 2015-05-05 | Viatime Media Ltd. | Display method, display device and display apparatus |
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| CN1484073A (en) | 2004-03-24 |
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