CN100381910C - Variable colour backlight source for planar display device - Google Patents
Variable colour backlight source for planar display device Download PDFInfo
- Publication number
- CN100381910C CN100381910C CNB2005101135933A CN200510113593A CN100381910C CN 100381910 C CN100381910 C CN 100381910C CN B2005101135933 A CNB2005101135933 A CN B2005101135933A CN 200510113593 A CN200510113593 A CN 200510113593A CN 100381910 C CN100381910 C CN 100381910C
- Authority
- CN
- China
- Prior art keywords
- urceolus
- inner core
- perforate
- optical filter
- backlight source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The present invention relates to a variable color backlight source for a planar display, which is characterized in that the variable colour backlight source comprises at least one color wheel sleeve assembly which comprises at least one light source, an inner barrel provided with a plurality of holes, and an outer barrel provided with a plurality of holes and a plurality of optical filters, wherein the light source is arranged in a barrel body of the inner barrel, the optical filters are covered on the holes, the inner barrel is arranged in a barrel body of the outer barrel, the inner barrel keeps a distance away from the outer barrel, and the inner barrel rotates relatively to the outer barrel to cause light to pass through the holes of the inner barrel and the holes of the outer barrel. Therefore, the variable color backlight source of the present invention can replace the traditional backlight source and color optical filters simultaneously, and can also solve the problems of incoming ray depolarization caused by the existing optical filters, pixel aperture opening ratio, etc. The present invention not only raises the color brightness and contrast of the display, but also reduces the production cost of the display.
Description
[technical field]
The invention relates to the variable colour backlight source that a kind of flat-panel screens is used, refer to a kind of variable colour backlight source that is applicable to LCD especially.
[background technology]
Such as will be applied to each pixel color of liquid crystal indicator, bright degree at present, and add mostly or use colored filter (color filter), with in demonstrating various colors on the pixel or on the whole liquid crystal panel.Yet colored filter now still faces the problem of some application surfaces, needs further improvement, and for example: the colorized optical filtering material of its use can cause the incident light of polarization that the phenomenon of depolarization (depolarization) is arranged, and causes the decline of color contrast.
In addition, the demand in color plane display future is still towards large-area display development.Yet, define the optical filter that panel or pixel color still adopt dyeing at present.And the upper substrate mass production method of the colored filter of these definition red, green, blue three look dyestuff blocks, for example decoration method (dyeing method), print process (printing method), pigment dispersing method (pigment dispersed method), dry film method (dry film method) and electricity method (electro-depositionmethod) etc., facing under the development trend of large-scale, except can't take into account demands such as color light transmission and material efficiency, its cost of manufacture raises, and product fine product rate significantly glides.Moreover, traditional LCD is for the increase of aperture ratio of pixels (aperture ratio), to promote the brightness of the whole picture of display, also still have the demand of improvement, but with present optical filter production method, in the volume production of large size panel,, all can't improve significantly to aforesaid shortcoming.
[summary of the invention]
The objective of the invention is to solve the problem that above-mentioned known flat-panel screens faces, and the variable colour backlight source that provides a kind of flat-panel screens to use, can intermittence provide various monochromatic sources, it can replace traditional backlight and colored filter, and not only do not influence the polarization of incident light, also can improve aperture ratio of pixels, make its contrast of whole color picture obviously promote, and meet the visual demand of human eyes with brightness.
The invention provides the variable colour backlight source that a kind of flat-panel screens is used, it is characterized in that: comprise a colour wheel cover group at least, and this colour wheel cover group includes:
At least one light source; One inner core is to contain several perforates, and wherein this light source is located in the cylindrical shell of this inner core; And a urceolus, be to contain several perforates and several optical filters, wherein these several optical filters are to be covered in this several tappings, and this inner core is located in the cylindrical shell of this urceolus;
This inner core and this urceolus are to keep a spacing; This inner core can rotate with respect to this urceolus, so that the light of the perforate by this inner core also penetrates the perforate of this urceolus;
This perforate that this inner core and this urceolus comprised is the spiral arranged of difference.
Because optical filter is to cover perforate top, thus rotate with respect to urceolus when inner core, and the light that penetrates the perforate of inner core is when further penetrating the perforate of urceolus, and any two perforate meetings penetrate out the light of same color simultaneously on the urceolus.By this, under different time, colour wheel cover group of the present invention can present the monochromatic light of different colours.
In a specific example of the present invention, when inner core and urceolus relatively rotated, the perforate that has spiral arranged on inner core of the present invention and the urceolus can drive the air-flow between inner core and the urceolus, got rid of the heat energy that light source produced.
In colour wheel cover group of the present invention, the kind that employed optical filter can not limit its color with and the arrangement mode of color.And in a concrete example, optical filter of the present invention can be the color filter of three kinds of colors, and wherein in the preferred example, it can adopt ruddiness optical filter, green glow optical filter and blue filter, and arranges the tapping that is covered in urceolus in regular turn.In addition, the light color of same color that any two perforates penetrate out simultaneously is unrestricted on the urceolus of the present invention, preferable ruddiness, green glow or the blue light of can be, better ruddiness, green glow, blue light or the white light of can be.In the urceolus of colour wheel cover group of the present invention structure, the relative corresponding relation that the optical filter correspondence is covered in tapping on the urceolus can be one-to-many, many-one or man-to-man corresponding relation.In one preferred embodiment, optical filter is the tapping that is covered in urceolus with man-to-man corresponding relation.
The clearance distance that inner core and urceolus kept of colour wheel cover group of the present invention is unrestricted, preferable can be between between the 0.1mm to 10mm.
In the colour wheel cover group running, inner core is done relative rotation with urceolus in the present invention, and its indivedual rotation directions of two are unrestricted, it preferablely can be both and rotate simultaneously or the modes of rotations only.Therefore, inner core can change parameter along with different demands with the relative rotation of urceolus, for example: penetrate frequency that varicolored coloured light, every kind of monochromatic light occurs etc., rotate its perforate number that is comprised of conditioned disjunction, size shape etc. and change it.In a specific example of the present invention, inner core of the present invention can be kept a fixing slewing rate, and it is motionless that urceolus can keep, and the rotating speed of inner core can be between the 10rpm to 2000rpm.In another concrete example, inner core of the present invention can be kept a fixing slewing rate, and it is motionless that urceolus can keep; The optical filter that has at least three looks on the urceolus, and penetrablely on urceolus go out at least three coloured light; And the frequency of its at least three coloured light repeated transformation can be between between the 10Hz to 100Hz.
In addition, number, shape and the size dimension of the perforate that is comprised on inner core of the present invention and the urceolus are also unrestricted respectively.In the present invention's one concrete example, the perforate number of inner core is the perforate number that is equal to or less than urceolus; In one preferred embodiment, when containing three kinds of color filters on the urceolus, the perforate number of urceolus is the perforate number of three times inner core.Moreover, the shape of perforate, preferable shape, the size that is same as perforate on the urceolus of size on the inner core of the present invention.And in the preferred embodiment of the present invention, the shape of inner core and urceolus perforate can be rectangle or falcate.
In order to promote the light recovery, and then effectively utilize the energy of light source.The inwall of inner core or outer wall more can be coated with a reflective material, impose mirror process or its combination in the colour wheel cover group of the present invention.In the same manner, the present invention also can optionally be coated with a reflective material in the inwall of urceolus, impose the processing of mirror process or its combination, to increase the utilization rate of light.Wherein, the reflective material that the present invention uses is unrestricted, preferable silver, aluminium or the titanium dioxide etc. of can be.
The light source that is suitable in the colour wheel cover group of the present invention can be any light source, the preferable light source of containing ruddiness, green glow, blue light three look frequency spectrums that can be, better cold cathode fluorescent lamp, HCFL, outer electrode fluorescent lamp, light emitting diode, Organic Light Emitting Diode or the macromolecule Organic Light Emitting Diode of can be.
The present invention also provides a kind of LCD, and it includes a upper substrate, the liquid crystal material layer and of an infrabasal plate, between upper substrate and infrabasal plate contains the backlight module of at least one colour wheel cover group, and is positioned at place, infrabasal plate below.At this, the mentioned colour wheel cover group of the present invention is to include urceolus and at least one light source of being located in the inner core cylindrical shell that an inner core, that contains several perforates contains several perforates and several optical filters, and makes the perforate of the light of light source by inner core.Wherein, inner core is to be located in the cylindrical shell of urceolus, and keeps the distance in a gap between inner core and the urceolus.This inner core can rotate with respect to this urceolus, so that the light of the perforate by this inner core also penetrates the perforate of this urceolus.This perforate that this inner core and this urceolus comprised is the spiral arranged of difference.
Because several optical filters on the urceolus of the present invention are that correspondence is covered in several tappings, so when inner core rotated with respect to urceolus, the light of perforate that penetrates inner core can make any two perforates of urceolus penetrate out identical coloured light simultaneously after the perforate that penetrates urceolus.
In one preferred embodiment, LCD of the present invention optionally more includes a light guide plate or several optical membrane plates, and it can place between infrabasal plate and the colour wheel cover group.Wherein, light guide plate and optical membrane plate can make the effect that reaches homogenising from the homogeneous beam of colour wheel cover group, to provide liquid crystal panel uniform illuminating ray.At this, mentioned optical membrane plate can be diffuser plate, Polarizer or reflecting plate.
In the another preferred embodiment, LCD of the present invention can more comprise a gearing, relatively rotates so that inner core and urceolus one in the colour wheel cover group to be provided.In one concrete example, gearing can be the mechanism of gear, crawler belt or its combination, and its gearing can be distinguished all colour wheel cover groups in independent each colour wheel cover group of control or the control display.
Colour wheel cover group of the present invention sees through inner core, rotation that urceolus is relative, can intermittently produce multiple monochromatic light, and the order that can arrange according to the optical filter of different colours on the urceolus, and the polychromatic light of a fixed frequency occurs.And, the liquid crystal molecule reaction velocity of arranging in pairs or groups suitable again, promptly can be applicable in traditional LCD, and replace the function of backlight and colored filter simultaneously, not only having solved known colored filter influences the problem of polar biased light, and the restriction of breakthrough conventional pixel aperture opening ratio, promote the contrast and the brightness of color effectively.
[description of drawings]
Fig. 1 a is the three-dimensional exploded view of the colour wheel cover group of a preferred embodiment of the present invention.
Fig. 1 b is the three-dimensional exploded view of the colour wheel cover group of another preferred embodiment of the present invention.
Fig. 1 c is the three-dimensional exploded view of the colour wheel cover group of the another preferred embodiment of the present invention.
Fig. 2 a and Fig. 2 b are the synoptic diagram that the preferred embodiment inner core of Fig. 1 a of the present invention rotates with respect to urceolus.
Fig. 3 is the synoptic diagram of the LCD of a preferred embodiment of the present invention.
[embodiment]
Embodiment one
See also Fig. 1 a, Fig. 1 a is the three-dimensional exploded view of a preferred embodiment of the present invention colour wheel cover group 100a, as shown in the figure its light source 10, one that includes a cold cathode fluorescent lamp (CCFL) contain a plurality of rectangle openings 21 inner core 20, with a urceolus 30 that contains a plurality of rectangle openings 31, and the rectangle opening 21,31 of inner core 20 and urceolus 30 presents a spiral helicine arranged all respectively.Wherein, in regular turn with ruddiness optical filter 32a, green glow optical filter 32b, cover the place, perforate 31 tops of urceolus 30 respectively in the mode that attaches with blue filter 32c.Show among the figure that this example is to adopt a tablet filter 32 to be covered in the man-to-man corresponding relation of a perforate 31.
In addition, perforate 31 numbers that comprised of present embodiment urceolus 30 are three times or three times multiple of perforate 21 numbers of inner core 20.Note that this routine inner core 20 is all identical with shape, the size of the perforate 21,31 of urceolus 30, and the reflexive aluminum of all first coating last layer of the inwall 33 of the inwall 22 of inner core 20, outer wall 23 and urceolus 30, and bestow a mirror process again.
See also Fig. 2 a and Fig. 2 b again, be the synoptic diagram of inner core in a preferred embodiment of the present invention with respect to the urceolus rotation.Shown in the figure, be that inner core 20 collocation one diameter with 2 centimeters of diameters is slightly larger than 2 centimeters urceolus 30, and have a cold cathode fluorescent lamp (CCFL) 10 to be located in the cylindrical shell of inner core 20.Wherein, kept one to be about distance between the 5mm between inner core 20 and the urceolus 30, and inner core 20 keeps the rotating speed of a 600rpm, the urceolus 30 that contains six groups red 32a, green 32b, blue 32c three-colour filter then maintains static.
Shown in Fig. 2 a, the width of each color filter is 1.7mm on the urceolus 30, and the inner core 20 of the 600rpm rotating speed of arranging in pairs or groups promptly produces ruddiness, green glow, the blue light three look conversion frequencies of 60Hz.Under one special time, the light of the perforate 21 by inner core 20 can penetrate the green glow optical filter 32b of perforate 31 tops of urceolus 30 simultaneously, makes urceolus 30 any two perforates 31 penetrate out green light simultaneously.Shown in Fig. 2 b, again behind the rotation time through an inner core 20, the light of the perforate 21 by inner core 20 can penetrate the ruddiness optical filter 32a of perforate 31 tops of urceolus 30 simultaneously, makes urceolus 30 any two perforates 31 penetrate out red light simultaneously.Therefore, promptly produce an intermittent monochromatic source in turn, and then can replace the purposes of the backlight and the colored filter of traditional monitor.
Embodiment two
The present invention is for increasing the brightness of single colour wheel cover group, and therefore visual demand ground comprises one or more light source in each colour wheel cover group.
See also Fig. 1 b, Fig. 1 b is the three-dimensional exploded view of another preferred embodiment colour wheel cover group of the present invention 100b.As shown in the figure, this routine colour wheel cover group 100b except the light source 10 of the cold cathode fluorescent lamp (CCFL) of using two horizontally-arrangeds with replace a light source, all be same as the colour wheel cover group 100a shown in the embodiment one.
Embodiment three
Fig. 1 c is the three-dimensional exploded view of the another preferred embodiment colour wheel of the present invention cover group 100c.As shown in the figure, this routine colour wheel cover group 100c except the light source 10 of the cold cathode fluorescent lamp (CCFL) of using three to pile up with replace a light source, all be same as the colour wheel cover group 100a shown in the embodiment one.
Embodiment four
Seeing also Fig. 3 is the synoptic diagram of a preferred embodiment of the present invention LCD, comprising a display panels 500 is arranged, and display panels 500 contains a upper substrate 510, an infrabasal plate 520, an and liquid crystal layer 530 that is folded between upper substrate 510 and the infrabasal plate 520.
In this routine liquid crystal indicator, backlight module comprises backlight, reflecting plate 110, light guide plate 200, several optical membrane plates 300 and the housing 400 with colour wheel cover group 100 of three groups.Wherein, this routine colour wheel cover group 100 is to adopt the colour wheel cover group 100a of present embodiment one, and its structure also is same as three-dimensional exploded view shown in Figure 1.Note that present embodiment more includes a gear drive, with as gearing 600, and in order to control the rotation of each inner core 20 in three groups of colour wheel cover groups 100 simultaneously.
Please consult the three-dimensional exploded view of Fig. 1 colour wheel cover group 100a again, the light source 10, one that employed three groups of colour wheel cover groups 100 all include a cold cathode fluorescent lamp (CCFL) respectively in this example contain a plurality of rectangle openings 21 inner core 20, with a urceolus 30 that contains a plurality of rectangle openings 31, and the rectangle opening 21 of inner core 20 and urceolus 30 presents a spiral helicine arranged all respectively.And place, perforate 31 tops of urceolus 30 is to utilize the mode that attaches, respectively ruddiness optical filter 32a, green glow optical filter 32b in the man-to-man in regular turn covering, with blue filter 32c.
Wherein, this routine colour wheel cover group 100 is that inner core 20 collocation one diameter with 2 centimeters of diameters is slightly larger than 2 centimeters urceolus 30, and is provided with a cold cathode fluorescent lamp (CCFL) 10 in the cylindrical shell of inner core 20.In addition, inner core 20 is kept the rotating speed of 600rpm, and is coated with six groups red 32a, green 32b, blue 32c three-colour filter on the urceolus 30 that does not rotate.
By this, this routine colour wheel cover group 100 is the frequencies with 60Hz, repeat to produce ruddiness, green glow, with the tri-color beam of blue light conversion.After this homogeneous beam that repeats to produce reflexes to light guide plate 200 via reflecting plate 110, again in regular turn by optical membrane plate 300, display panels 500, and the liquid crystal reaction velocity of collocation 180Hz, arrive the eyes of human body at last, again via the phenomenon of the persistence of vision of human eye, and obtain full-color image.Note that the liquid crystal material that uses in this example, its reaction velocity can be adjusted to some extent according to the coloured light conversion frequency of colour wheel cover group, human eye vision demand, is not to be only limited to reaction velocity mentioned among this embodiment.Therefore, by colour wheel cover group 100 of the present invention, present embodiment is to regulate and control ruddiness, green glow, blue light three look monochromatic sources respectively, shows the image of three kinds of colors in turn, and with the reaction velocity of liquid crystal as controlled condition.The rotation of liquid crystal molecule is in order to regulate and control each homogeneous beam respectively, to produce the image of each color in this example.Receive the image of three looks when human eye after, promptly mixed light becomes correct picture automatically.
At this, light guide plate 200 and optical membrane plate 300 just can provide liquid crystal panel uniform illuminating ray after mainly being the homogeneous beam homogenising that colour wheel cover group is provided.Optical membrane plate 300 in this example includes a Polarizer, a diffuser plate, but is not limited thereto, and can more comprise as reflecting plate etc.Housing 40 is in order to ccontaining colour wheel cover group, light guide plate 200 and optical membrane plate 300.
Because colour wheel cover group of the present invention can provide the monochromatic source of polychrome, replace the backlight in the conventional liquid crystal and the effect of colored filter simultaneously, so monochromatic light that LCD of the present invention provided, there is no known colored filter and cause unpolarized phenomenon, and impel color contrast to increase.In addition, LCD of the present invention is different from the design of ruddiness, green glow, blue light time pixel (sub-pixel) traditionally, and therefore, pixel aperture ratio significantly increases, and then promotes the brightness of picture integral body.
The foregoing description only is to give an example for convenience of description, and the rights protection scope that the present invention advocated is not limited only to the foregoing description.
[main element symbol description]
21 perforates of 10 light sources, 20 inner cores
31 perforates, 32 optical filter 32a ruddiness optical filters
The inwall of 32b green glow optical filter 32c blue filter 33 urceolus
100a, 100b, 100c colour wheel cover are organized 110 reflecting plates
200 light guide plate, 300 optical membrane plates, 400 housings
600 gearings
Claims (19)
1. the variable colour backlight source that flat-panel screens is used comprises a colour wheel cover group at least, and this colour wheel cover group includes:
At least one light source;
One inner core is to contain several perforates, and wherein this light source is located in the cylindrical shell of this inner core; And
One urceolus is to contain several perforates and several optical filters, and wherein these several optical filters are to be covered in this several tappings, and this inner core is located in the cylindrical shell of this urceolus;
This inner core and this urceolus are to keep a spacing; This inner core can rotate with respect to this urceolus, so that the light of the perforate by this inner core also penetrates the perforate of this urceolus;
This perforate that this inner core and this urceolus comprised is the spiral arranged of difference.
2. the variable colour backlight source that flat-panel screens as claimed in claim 1 is used is characterized in that: this optical filter that this urceolus comprised is to have three kinds of color filters, and this optical filter is ruddiness optical filter, green glow optical filter and blue filter.
3. the variable colour backlight source that flat-panel screens as claimed in claim 2 is used is characterized in that: this optical filter that this urceolus comprised is with ruddiness optical filter, green glow optical filter, arranges this tapping that is covered in this urceolus in regular turn with blue filter.
4. the variable colour backlight source that flat-panel screens as claimed in claim 1 is used, it is characterized in that: this optical filter that this urceolus comprised is to have four kinds of color filters, and this optical filter be ruddiness optical filter, green glow optical filter, blue filter, with the white light optical filter.
5. the variable colour backlight source that flat-panel screens as claimed in claim 1 is used is characterized in that: this spacing that this inner core and this urceolus kept is between between the 0.1mm to 10mm.
6. the variable colour backlight source that flat-panel screens as claimed in claim 1 is used is characterized in that: the perforate number that this inner core comprised is the perforate number that is equal to or less than this urceolus.
7. the variable colour backlight source that flat-panel screens as claimed in claim 1 is used is characterized in that: the shape of the shape of the perforate of this inner core, size and the perforate of this urceolus, big or small identical.
8. the variable colour backlight source that flat-panel screens as claimed in claim 1 is used is characterized in that: this perforate be shaped as rectangle.
9. the variable colour backlight source that flat-panel screens as claimed in claim 1 is used is characterized in that: this perforate be shaped as falcate.
10. the variable colour backlight source that flat-panel screens as claimed in claim 1 is used is characterized in that: the inwall of this inner core or outer wall are coated with a reflective material, impose mirror process or its combination.
11. the variable colour backlight source that flat-panel screens as claimed in claim 1 is used is characterized in that: the inwall of this urceolus is coating one reflective material, imposes mirror process or its combination.
12. the variable colour backlight source that flat-panel screens as claimed in claim 1 is used is characterized in that: this light source is cold cathode fluorescent lamp, outer electrode fluorescent lamp, light emitting diode, Organic Light Emitting Diode or macromolecule Organic Light Emitting Diode.
13. the variable colour backlight source that flat-panel screens as claimed in claim 1 is used is characterized in that: wantonly two perforates of this urceolus are to penetrate out identical coloured light simultaneously.
14. a LCD, it comprises:
One upper substrate;
One infrabasal plate;
One liquid crystal material layer is between this upper substrate and this infrabasal plate; And
One contains the backlight module of at least one colour wheel cover group, is the below that is positioned at this infrabasal plate;
Wherein, this colour wheel cover group comprises at least one light source, an inner core and a urceolus; This inner core is to contain several perforates, and wherein this light source is located in the cylindrical shell of this inner core; This urceolus is to contain several perforates and several optical filters, and wherein these several optical filters are that correspondence is covered in this several tappings, and this inner core is located in the cylindrical shell of this urceolus; This inner core and this urceolus are to keep a spacing; This inner core can rotate with respect to this urceolus, so that the light of the perforate by this inner core also penetrates the perforate of this urceolus;
This perforate that this inner core and this urceolus comprised is the spiral arranged of difference.
15. LCD as claimed in claim 14 is characterized in that: more comprise a gearing, this inner core and the urceolus that provide in this colour wheel cover group have one to relatively rotate.
16. LCD as claimed in claim 14 is characterized in that: this optical filter that this urceolus comprised is the optical filter with three kinds of colors, and this optical filter is ruddiness optical filter, green glow optical filter and blue filter.
17. LCD as claimed in claim 14 is characterized in that: the perforate number that this inner core comprised is the perforate number that is equal to or less than this urceolus.
18. LCD as claimed in claim 17 is characterized in that: the shape of the perforate of this inner core, size are shape, the sizes that is same as the perforate of this urceolus.
19. LCD as claimed in claim 14 is characterized in that: wantonly two perforates of this urceolus are to penetrate out identical coloured light simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101135933A CN100381910C (en) | 2005-10-13 | 2005-10-13 | Variable colour backlight source for planar display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101135933A CN100381910C (en) | 2005-10-13 | 2005-10-13 | Variable colour backlight source for planar display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1743920A CN1743920A (en) | 2006-03-08 |
| CN100381910C true CN100381910C (en) | 2008-04-16 |
Family
ID=36139354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101135933A Expired - Fee Related CN100381910C (en) | 2005-10-13 | 2005-10-13 | Variable colour backlight source for planar display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100381910C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104969898B (en) * | 2015-07-24 | 2017-08-22 | 中国水产科学研究院黄海水产研究所 | It is a kind of to be used to study experimental provision and its application that shadow rings Fish behavior |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6211827A (en) * | 1985-07-10 | 1987-01-20 | Hitachi Ltd | Multiple color light source device |
| DE3826161A1 (en) * | 1988-08-01 | 1990-02-08 | Stiers Unterhaltungselektronik | Light-fanning device |
| GB2305496A (en) * | 1995-09-21 | 1997-04-09 | David Baxter | A lamp |
| JP2002100222A (en) * | 2000-09-26 | 2002-04-05 | Matsushita Electric Works Ltd | Luminaire |
| US20040001341A1 (en) * | 2002-06-28 | 2004-01-01 | Au Optronics Corp. | Light-emitting apparatus able to dynamically produce lights of different wavelengths |
-
2005
- 2005-10-13 CN CNB2005101135933A patent/CN100381910C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6211827A (en) * | 1985-07-10 | 1987-01-20 | Hitachi Ltd | Multiple color light source device |
| DE3826161A1 (en) * | 1988-08-01 | 1990-02-08 | Stiers Unterhaltungselektronik | Light-fanning device |
| GB2305496A (en) * | 1995-09-21 | 1997-04-09 | David Baxter | A lamp |
| JP2002100222A (en) * | 2000-09-26 | 2002-04-05 | Matsushita Electric Works Ltd | Luminaire |
| US20040001341A1 (en) * | 2002-06-28 | 2004-01-01 | Au Optronics Corp. | Light-emitting apparatus able to dynamically produce lights of different wavelengths |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1743920A (en) | 2006-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108957849A (en) | screen assembly and electronic device | |
| EP0336351B1 (en) | Controlled color filter for use in information display applications | |
| CN105280111B (en) | Transparent display | |
| CN208141087U (en) | A kind of display device | |
| CN101657676B (en) | Illuminator and display having same | |
| US10091471B2 (en) | Display panel, display device as well as control method and preparation method thereof | |
| CN1540393A (en) | LCD device and electronic device | |
| CN106483707B (en) | Colour filter for liquid crystal display and preparation method thereof and liquid crystal display | |
| CN106023909A (en) | Display device and display method thereof | |
| US8934184B2 (en) | Color filter and color display device using same | |
| WO2021128976A1 (en) | Backlight module and liquid crystal display | |
| JPH09146089A (en) | Surface light source for color display device and liquid crystal display device | |
| CN106019649A (en) | Display panel, display device and display method | |
| CN103858027A (en) | Color filter and display device comprising same | |
| CN111999924A (en) | Display module and display device | |
| CN101501558A (en) | Liquid crystal display device | |
| CN1160591C (en) | Colour filter base plate for reflective type liquid crystal display device and liquid crystal display device | |
| CN100381910C (en) | Variable colour backlight source for planar display device | |
| US7044625B2 (en) | Light-emitting apparatus able to dynamically produce lights of different wavelengths | |
| CN103907149A (en) | Display device | |
| CN103439832A (en) | Transparent display device | |
| US7167220B2 (en) | Surface light source and light guide plate having color filter | |
| CN102654593A (en) | Color filter, display device and preparation method of color filter | |
| CN105629616B (en) | A kind of display panel and display device | |
| CN205318031U (en) | Light modulation panel and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20201013 |