CN101042496A - Light source system - Google Patents
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- CN101042496A CN101042496A CN 200610071483 CN200610071483A CN101042496A CN 101042496 A CN101042496 A CN 101042496A CN 200610071483 CN200610071483 CN 200610071483 CN 200610071483 A CN200610071483 A CN 200610071483A CN 101042496 A CN101042496 A CN 101042496A
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- 238000005282 brightening Methods 0.000 claims description 66
- 238000002310 reflectometry Methods 0.000 claims description 16
- 230000000712 assembly Effects 0.000 claims description 14
- 238000000429 assembly Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 10
- 239000010453 quartz Substances 0.000 claims 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 3
- 239000004973 liquid crystal related substance Substances 0.000 description 36
- 230000035515 penetration Effects 0.000 description 22
- 239000011521 glass Substances 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000005684 electric field Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000000576 coating method Methods 0.000 description 1
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Abstract
This invention provides one light source system, which comprises one light source and one module light improve deice, wherein, the improve device comprises one light bias vibration parts and one bias resonance part; the bias vibration part comprises first and second double reflection surfaces vertical to each other as reflection surfaces; through the first and second reflection surfaces and bias resonance modulation part set converts the random bias lights into light with single bias element to improve light source whole brightness.
Description
Technical field
The invention provides a kind of light-source system that can be used as the backlight module of display device, particularly a kind of light-source system that includes the module brightening device.
Background technology
LCD is because have that external form is frivolous, power consumption is few and characteristic such as radiationless pollution, therefore be a kind of display device of day by day popularizing at present, be widely used on the portable type information products such as individual desktop PC screen and notebook, PDA(Personal Digital Assistant), mobile phone, and replace cathode-ray tube (CRT) (Cathode Ray Tube, CRT) display device and traditional tv gradually.
Generally speaking, (liquid crystal display module LCM) is the device of most critical in the LCD to LCD MODULE, and it includes assemblies such as display panels and backlight module.Display panels is in two sheet glass substrates a layer of liquid crystal molecule to be set, and first coating both alignment layers on each glass substrate usually is so that liquid crystal molecule is specific along one and direction that be parallel to glass surface is arranged.By electronic packages such as the transistor on glass substrate, electrodes, can electric field be provided and liquid crystal molecule is rotated with electric field level liquid crystal molecule, because the birefraction of liquid crystal molecule can change with the direction of liquid crystal molecule, just can make polarized light through liquid crystal molecule the time, produce the change of polarization direction.Therefore, the displaying principle of display panels promptly is in the upper and lower both sides of display panels one polaroid (polarizer) to be set respectively, and cooperates the light amount of the rotation of liquid crystal molecule with the control exiting surface, just can demonstrate picture.
Please refer to Fig. 1, Fig. 1 is the displaying principle synoptic diagram of a traditional display panels.The tradition display panels includes two glass substrates 12, which is provided with electrode, and is provided with liquid crystal molecule 14 in the middle of the glass substrate 12.The both sides of glass substrate 12 then are provided with two mutually perpendicular first and second polaroids 16,18, therefore, do not apply at last figure under the situation of electric field, the natural light that light source produced is through first polaroid 16 time, the linearly polarized light P that only has first polarized component be can form, glass substrate 12 and layer of liquid crystal molecule passed through again.It should be noted that in the layer of liquid crystal molecule of suitable thickness liquid crystal molecule 14 can make the polarization direction of linearly polarized light P just change 90 degree and form second polarized component-linearly polarized light S, just can pass through second polaroid 18.On the other hand, when being applied voltage, liquid crystal molecule can change the direction (applying the situation of electric field as figure below) of liquid crystal molecule 14, for example make the direction of liquid crystal molecule 14 parallel with the electric field direct of travel, make linearly polarized light P through layer of liquid crystal molecule the time, can not change the polarization direction, just can't pass through second polaroid 18.From the above, convert light source to linearly polarized light by polaroid, and cooperate and to apply not to liquid crystal molecule that same electric field so could show grey-tone image so that linearly polarized light converts elliptical polarized light to, be that necessity of LCD designs so polaroid generally is set in the display panels both sides.
Yet the function of general polaroid is to make the linearly polarized light of a certain polarization direction can pass through polaroid, and will absorb perpendicular to the light of this polarization direction, that is can absorb 43 to 50 percent light, causes light utilization lower.Therefore, how to improve the LCD MODULE design,, can effectively utilize most natural light, still continue the problem of research for industry to improve the light utilization ratio of LCD MODULE.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of light-source system that can effectively utilize random polarization light, it has module brightening device (P-S converter), needing the backlight module of light source, and then solve the problem of above-mentioned conventional planar display module as LCD MODULE or other.
According to the present invention, a kind of light-source system is disclosed, it includes in order to producing at least one light source of random polarization light, and a module brightening device is located at a side of light source, so that the random polarization light that light source produced can directly be injected the module brightening device.The module brightening device includes at least one light polarization assembly and at least one Polarization Modulation assembly, and wherein, the light polarization assembly includes one first birefringence face and one second birefringence face.The first birefringence face is in order to one first polarized component of reflection random polarization light, and one second polarized component of random polarization light is passed through, and the one side of the first birefringence face is one first reflecting surface; And one second birefringence face can reflect second polarized component of random polarization light, and first polarized component is passed through, and the one side of the second birefringence face is one second reflecting surface.Above-mentioned first with this second reflecting surface be in order to light towards leaving the light polarization assembly away from the reflection of the direction of this light source.In addition, the Polarization Modulation assembly can be with second polarized component or the first polarized component rotatory polarization.
Owing to include a module brightening device in the light-source system of the present invention, the random polarization light that light source produced can be converted to single linear polarization component, therefore when light-source system of the present invention is as the backlight module of LCD MODULE, can effectively utilize light source, make the light that light source produced more than at least 80% to be used effectively, to produce the image frame of LCD MODULE.
Description of drawings
Fig. 1 is the displaying principle synoptic diagram of a traditional display panels.
Fig. 2 is applied to the synoptic diagram of a LCD MODULE for light-source system of the present invention.
Fig. 3 is the amplification side schematic view of module brightening device shown in Figure 2.
Fig. 4 is the side enlarged diagram of another embodiment of module brightening device shown in Figure 2.
Fig. 5 is the side schematic view of the 3rd embodiment of light source module of the present invention.
Fig. 6 is the diagrammatic cross-section of the 4th embodiment of light-source system of the present invention.
Fig. 7 among first and second embodiment of light-source system of the present invention to the effect schematic flow sheet of light.
Fig. 8 among light-source system the 3rd of the present invention and the 4th embodiment to the effect schematic flow sheet of light.
The primary clustering symbol description
10 LCD MODULE, 12 liquid crystal displays
14 light-source systems, 16 backlight modules
18 light source generators, 20 reflection shields
22 reflecting plates, 24 light guide plate
26,28 blooming pieces, 30 module brightening devices
32 times polaroid 34 liquid crystal panels
Polaroid 38,38a, 38b light polarization assembly on 36
40 Polarization Modulation assemblies, 42 first incidence surfaces
44 second incidence surfaces, 46 birefringence faces
48 birefringence face 46a, first penetration surface
The 46b first reflecting surface 48a second penetration surface
48b second reflecting surface 50 first exiting surfaces
51 second exiting surfaces 52 the 3rd exiting surface
54 light polarization unit 56a penetration surfaces
60 exiting surfaces, 62 incidence surfaces
64 Polarization Modulation assemblies, 100 module brightening devices
102 light polarization assembly 102a, the first light polarization unit
The 102b second light polarization unit 104 Polarization Modulation assemblies
106,108 penetration surfaces, 107,109 birefringence faces
110,112 reflectings surface 114 the 3rd exiting surface
116 the 4th exiting surfaces, 118,120 second exiting surfaces
122,124 first exiting surfaces, 126 first incidence surfaces
128 second incidence surfaces, 130 tool reflectivity diaphragms
150 module brightening devices, 152 light polarization assemblies
The 152a first light polarization unit 152b second light polarization unit
154,156 first incidence surfaces, 158,160 second exiting surfaces
162,164 first exiting surfaces, 166,168 penetration surfaces
170,172 reflectings surface, 171,173 birefringence faces
174 Polarization Modulation assemblies, 176 tool reflectivity diaphragms
200,300 illuminating sources, backlight 202,302 light polarization assemblies
204,304 Polarization Modulation assemblies, 206,308 liquid crystal displays
306 tool reflectivity diaphragms
Embodiment
Please refer to Fig. 2, Fig. 2 is applied to the synoptic diagram of a LCD MODULE for light-source system of the present invention.LCD MODULE 10 includes a liquid crystal display 12 and a light-source system 14 of the present invention, light-source system 14 wherein of the present invention includes a backlight module 16 as light source, its include a light source generator 18, a light guide plate 24, a reflection shield 20 in order to the light that light source generator 18 is produced reflex within the light guide plate 24, a reflecting plate 22 and a plurality of blooming piece 26,28.Because light source generator 18 can be the assembly of fluorescent tube or other general tool lighting function, the light of its generation is random polarization light, and therefore the light that is penetrated by backlight module 16 also is polarisation at random, shown in blooming piece 26 surperficial arrows.In addition, light-source system 14 also includes a module brightening device 30, converts single polarized component in order to the polarisation at random that backlight module 16 is produced, and for example is the S linearly polarized light, indicates as vertical arrows among the figure.
Please refer to Fig. 3, Fig. 3 is the amplification side schematic view of module brightening device 30 shown in Figure 2.Module brightening device 30 includes at least one light polarization assembly 38 and at least one Polarization Modulation assembly 40.In the present embodiment, module brightening device 30 includes a plurality of light polarization assemblies 38, and the next-door neighbour is side by side parallel mutually, as shown in FIG. light polarization assembly 38a, 38b etc.Light polarization assembly 38 is constituted by birefringence (double refraction) crystal, for example quartzy, kalzit or icelandspar, random polarization light can be divided into one first polarized component and one second polarized component, and allow first polarized component pass through, and reflect second polarized component.In addition, each light polarization assembly 38a, 38b have included one first incidence surface 42, one second incidence surface 44, one first exiting surface 50, one second exiting surface 51 and one the 3rd exiting surface 52, wherein first exiting surface 50 and second exiting surface 51 are not parallel to the 3rd exiting surface 52, and first incidence surface 42 and second incidence surface 44 are in the same plane, are parallel to first exiting surface 50.In addition, element numbers 46,48 indication planes are defined as birefringence face 46,48, setting parallel to each other, and its side in contrast to first, second incidence surface 42,44 is first and second reflecting surface 46b and 48b, and the plane that is adjacent to first, second incidence surface 42,44 1 sides is first, second penetration surface 46a, 48a.When light marched to birefringence face 46,48, birefringence face 46,48 can make a certain polarized component directly pass through, and reflects another polarized component fully.In this embodiment, birefringence face 48 can allow first polarized component pass through, and promptly allows the S polarized component pass through, and the reflected P polarized component, the penetrating shaft of birefringence face 46 is then opposite with it, can allow the second polarized component P polarized component pass through, and reflection S polarized component.In addition, Polarization Modulation assembly 40 is located at first exiting surface, 50 surfaces of each light polarization assembly 38, be a phase delay assembly, first polarized component and second polarized component can be intermodulated that wherein Polarization Modulation assembly 40 is preferably 1/1st phase retardation film.
The travel path of light system is described below in the present embodiment: with light polarization assembly 38b is example, random polarization light by light source 16 generations, can enter light polarization assembly 38b via first incidence surface 42 or second incidence surface 44, the light that wherein defines by 42 incidents of first incidence surface includes the first polarized component S and the second polarized component P.When light enters light polarization assembly 38b by first incidence surface 42, can march to birefringence face 46 earlier, this moment, the second polarized component P can directly advance towards first exiting surface 50 by penetration surface 46a, and the first polarized component S can be reflected, and penetrates and enters among the adjacent light polarization assembly 38a towards the 3rd exiting surface 52.Therefore, the light that is penetrated by first exiting surface 50 only has single polarized component, the i.e. second polarized component P, and the second polarized component P can become the first polarized component S via Polarization Modulation assembly 40 modulation conversion on first exiting surface, 50 surfaces penetrates and leaves the module brightening device towards end face.On the other hand, when being marched to the reflecting surface 48b of adjacent light polarization assembly 38a by the first polarized component S of birefringence face 46 reflections, meeting be reflected fully and be entered liquid crystal display 12 towards the end face ejaculation.
Moreover, the light that is entered by second incidence surface 44 of light polarization assembly 38b is similarly random polarization light, for ease of explanation, be defined as the light that includes the first polarized component S ' and the second polarized component P ', the summation of the first polarized component S ' and the second polarized component P ' and the above-mentioned first polarized component S and the second polarized component P is the summation of backlight module 16 light that produces.When the first polarized component S ' and the second polarized component P ' march to birefringence face 48, penetration surface 48a can make the first polarized component S ' directly pass through, and reflect the second polarized component P ' fully, enter liquid crystal display 12 to allow the first polarized component S ' penetrate towards end face, the second polarized component P ' then continues to march to reflecting surface 46b within light polarization assembly 38b, be reflected the back by 50 ejaculations of first exiting surface, and be converted to the first polarized component S ' via Polarization Modulation assembly 40.From the above, the light that is produced by backlight module 16 is all converted to the S polarized component and enters liquid crystal display 12 by module brightening device 30, so most of light that backlight module 16 produces all can effectively be utilized by liquid crystal display 12.It should be noted that, birefringence face 46,48 is not parallel to the incidence surface (for example first incidence surface 42) or the exiting surface (for example first exiting surface 50) of arbitrary light polarization assembly 38, but birefringence face 46,48 can have different designs according to the needs of device with the incidence surface of light polarization assembly 38 or the angle of exiting surface.
Please refer to Fig. 4, Fig. 4 is the side enlarged diagram of another embodiment of module brightening device 30 shown in Figure 2.In the present embodiment, module brightening device 30 includes a plurality of light polarization unit 54 and a plurality of Polarization Modulation assemblies 64 that are horizontal Tile, is located between the adjacent light polarization unit 54.Light polarization unit 54 is a birefringent material, birefringece crystals such as for example quartzy, kalzit or icelandspar, and preferably has the square sides shape, it includes an incidence surface 62 and an exiting surface 60, and the plane of element numbers 58 indications is an a pair of plane of refraction 58, and its outside surface is a reflecting surface 56b, and inside surface is a penetration surface 56a, wherein, incidence surface 62, exiting surface 60 form a triangle side shape with birefringence face 58, are preferably isosceles right triangle.Therefore, when the light in light polarization unit 54 marched to birefringence face 58, first polarized component can be passed through penetration surface 56a, and second polarized component then can be reflected fully.On the other hand, Polarization Modulation assembly 64 is located at exiting surface 60 surfaces, is 1/2nd phase retardation films, second polarized component can be converted to first polarized component.
Present embodiment module brightening device 30 is as follows for the Action Specification of light: with light polarization unit 54b is example, the light that penetrates from backlight module 16 includes the first polarized component S ' and the second polarized component P ', inject among the light polarization unit 54b by incidence surface 62, during the birefringence face of marching to 58, the first polarized component S ' can directly be penetrated by its penetration surface 56a, the second polarized component P ' then can be reflected and penetrate light polarization unit 54b by exiting surface 60, be polarized modulation component 64 then and convert the first polarized component S ' to, then march to adjacent light polarization unit 54a, and reflect fully and outwards penetrate and leave module brightening device 30 via reflecting surface 56b.Therefore, the light that enters module brightening device 30 by incidence surface 62 all can be converted into the first polarized component S, S ' and offer the backlight that liquid crystal display 12 only has single polarized component.
Please refer to Fig. 5, Fig. 5 is the side schematic view of the 3rd embodiment of light-source system of the present invention.Light-source system of the present invention includes the both sides that a module brightening device 100 and two light sources are located at module brightening device 100, and module brightening device 100 includes at least one light polarization assembly 102, at least one Polarization Modulation assembly 104 and a tool reflectivity diaphragm 130, wherein light polarization assembly 102 includes one first light polarization unit 102a and one second light polarization unit 102b, and Polarization Modulation assembly 104 is to be located between the first light polarization unit 102a and the second light polarization unit 102b, is preferably 1/2nd phase retardation films.Light polarization modulation component 102 includes first incidence surface 126 parallel to each other and second incidence surface 128 and is used for receiving the random polarization light, two that the both sides light source produced and is positioned at conplane first exiting surface 122,124 and second exiting surface 118,120, and two be positioned at conplane the 3rd exiting surface 114 and the 4th exiting surface 116, and wherein Polarization Modulation assembly 104 is in close proximity to second exiting surface 118,120 and is provided with.In addition, the first light polarization unit 102a and the second light polarization unit 102b include a pair of plane of refraction 107,109 respectively, wherein birefringence face 107 is a reflecting surface 110 in contrast to the one side of first incidence surface 126, energy is reflection ray fully, and birefringence face 107 is adjacent to the one side of first incidence surface 126 is a penetration surface 106, can reflect second polarized component and allows first polarized component pass through; Similarly, the birefringence face 109 of the second light polarization unit 102b is a reflecting surface 112 in the one side in contrast to second incidence surface 128, and its reverse side then is a penetration surface 108, can reflect second polarized component equally, and allow first polarized component pass through.In addition, in the present embodiment, the angle of the birefringence face 107 and first incidence surface 126 is same as the angle of the birefringence face 109 and second incidence surface 128.Moreover tool reflectivity diaphragm 130 is set perpendicular to first, second incidence surface 126,128, and is located at the 3rd, the 4th exiting surface 114,116 surfaces.
The left side light that light source produced includes the first polarized component P ' and the second polarized component S ', can enter among the light polarization unit 102a via first incidence surface 126, during the birefringence face of marching to 107, the first polarized component P ' can march to second exiting surface 118 by penetration surface 106, be converted to the second polarized component S ' via Polarization Modulation assembly 104, march to the birefringence face 109 of the second light polarization unit 102b again, the face 112 that is reflected reflects fully, and is penetrated by first exiting surface 124; And enter the second polarized component S ' among the light polarization unit 102a by first incidence surface 126, then can be by 107 reflections of birefringence face, penetrate by the 3rd exiting surface 114, then, penetrate by first exiting surface 122 through penetration surface 106 by within the tool reflectivity diaphragm 130 reflected light polarization unit 102a.Same, include the first polarized component P and the second polarized component S by the right side light source via the light that second incidence surface 128 enters in the second polarization unit 102b, wherein the first polarized component P can pass penetration surface 108 and march to second exiting surface 120, be polarized modulation component 104 and convert the second polarized component S to, the face 110 that is reflected reflects fully and is penetrated by first exiting surface 122; The second polarized component S that is entered by second incidence surface 128 then can be penetrated by the 4th exiting surface 116 by 109 reflections of birefringence face, is penetrated by first exiting surface 124 by tool reflectivity diaphragm 130 reflected backs, the second light polarization unit 102b again.From the above, the random polarization light that light source produced all is converted into the second polarized component S, S ', and is penetrated by first exiting surface 122,124 of module brightening device 100, so that the light-source system with single linear polarization component to be provided.
Please refer to Fig. 6, Fig. 6 is the diagrammatic cross-section of the 4th embodiment of light-source system of the present invention.In this embodiment, light-source system of the present invention includes a module brightening device 150 and two sidelight sources, is located at the both sides of module brightening device 150 respectively.Module brightening device 150 includes a light polarization assembly 152, a Polarization Modulation assembly 174 and a tool reflectivity diaphragm 176 storehouse settings in regular turn, and wherein Polarization Modulation assembly 174 is 1/4th phase retardation films, linearly polarized light can be converted to circularly polarized light.
The running system of light-source system of the present invention is described below: the light that is produced by the left side light source is random polarization light, comprise the first polarized component S ' and the second polarized component P ', enter among the first light polarization unit 152a by first incidence surface 154, wherein the first polarized component S ' can continue to march within the second light polarization unit 152b by penetration surface 166, and the face 172 that is reflected then reflects and penetrated by first exiting surface 164; The second polarized component P ' then can be by 171 reflections of birefringence face, penetrate by second exiting surface 158, be converted to rotatory polarization via Polarization Modulation assembly 174, then by after 176 reflections of tool reflectivity diaphragm, be converted to the first polarized component S ' through Polarization Modulation assembly 174 again, enter among the first light polarization unit 152a, pass penetration surface 166 and penetrate by first exiting surface 162.Same, the light that the right side light source is produced includes the first polarized component S and the second polarized component P, enter among the second light polarization unit 152b by first incidence surface 156, wherein the first polarized component S can enter among the first light polarization unit 152a by penetration surface 168, and the face 170 that is reflected reflects and penetrated by first exiting surface 162; The second polarized component P then can be after entering the second light polarization unit 152b, by 173 reflections of birefringence face, penetrate by second exiting surface 160, change rotatory polarization into via Polarization Modulation assembly 174, then by 176 reflections of tool reflectivity diaphragm, change the first polarized component S into via Polarization Modulation assembly 174 again, then enter among the second light polarization unit 152b, pass penetration surface 168 and penetrate by first exiting surface 164.Therefore, the light that the both sides light source of light-source system of the present invention is sent all can convert the light that only includes the first polarized component S, S ' to by module brightening device 150, to offer liquid crystal display.
Effect to light among first and second embodiment of the invention described above light-source system can be with reference to figure 7.At first, can be divided into first polarized component and second polarized component via light polarization assembly 202 by illuminating source or light that backlight 200 produced, change second polarized component into first polarized component via Polarization Modulation assembly 204 again, so that change in the liquid crystal display 206 that the light of first polarized component enters the tool Polarizer.Moreover, the effect of light of light-source system the 3rd of the present invention and the 4th embodiment then can be represented by Fig. 8, by the light that light emitting source or backlight 300 are produced, same via changing light behind the module brightening device into single polarized component, enter again in the liquid crystal display 308 of tool polaroid.It should be noted that, three, the module brightening device includes light polarization assembly 302, Polarization Modulation assembly 304 and tool reflectivity diaphragm 306 among the 4th embodiment, therefore light can be divided into first polarized component and second polarized component via light polarization assembly 302 earlier, and second polarized component changes first polarized component into by Polarization Modulation assembly 304, utilize tool reflectivity diaphragm 306 to adjust opticpath afterwards again, so that first polarized component is all advanced towards specific direction.
In addition, because the incidence surface of module brightening device of the present invention is all parallel to each other, and can be designed to be connected with each other and form a complete big plane, therefore when using the module brightening device to convert random polarization light to single polarized component, need not utilize specific components (for example concentrating component) with the ad-hoc location of former ray guidance to the module brightening device in advance, only light source need be arranged near the incidence surface, the random polarization light that light source is produced directly enters the module brightening device by incidence surface, just can reach the function that random polarization light is all converted to single polarized component.
Module brightening device of the present invention and light-source system generally need can be applicable in the device of backlight module or backlight, for example LCD.Compared to conventional art, the module brightening device of light-source system of the present invention is to utilize light polarization assembly and Polarization Modulation assembly combined, therefore, except the part light that is absorbed by the light-source system interior diaphragm, about 80% to 99% original random polarization light all can be converted to the light with single polarized component by the module brightening device, for the liquid crystal display utilization.Therefore, utilize the backlight module of light-source system of the present invention, can use the less light source generator of energy, just reach the brightness that is same as conventional art, reduce cost whereby and promote the use of energy as LCD MODULE.In addition, in general backlight module, install module brightening device of the present invention additional, can obviously improve brightness, even can reach the effect of one times of brightness of blast, effectively improve the image frame quality of display.
The above only is the preferred embodiments of the present invention, and is all according to equalization variation and modification that the present invention did, all should belong to covering scope of the present invention.
Claims (38)
1. light-source system, it includes:
At least one light source is in order to produce random polarization light; And
One module brightening device (P-S converter) is located at a side of this light source, so that this random polarization light is directly injected in this module brightening device, this module brightening device includes:
At least one light polarization assembly, and this light polarization assembly includes:
One first birefringence face in order to reflecting one first polarized component of this random polarization light, and one second polarized component of this random polarization light is passed through, and the one side of this first birefringence face is one first reflecting surface; And
One second birefringence face in order to reflecting this second polarized component of this random polarization light, and this first polarized component of this random polarization light is passed through, and the one side of this second birefringence face is one second reflecting surface;
Wherein and this first with this second reflecting surface in order to light towards leaving this light polarization assembly away from the reflection of the direction of this light source; And
At least one Polarization Modulation assembly is in order to this second polarized component or this first polarized component rotatory polarization.
2. light-source system according to claim 1 is characterized in that, this second polarized component can be left this light polarization assembly through this Polarization Modulation assembly by behind this first birefringence face.
3. light-source system according to claim 1, it is characterized in that, after being reflected by this first birefringence face, this first polarized component can leave this light polarization assembly via this second reflecting surface reflection, and this second polarized component by the reflection of this second birefringence face after, can be left this light polarization assembly through this Polarization Modulation assembly again by this first reflecting surface reflection.
4. light-source system according to claim 1 is characterized in that, this Polarization Modulation assembly is 1/1st phase retardation film.
5. light-source system according to claim 1 is characterized in that, this light polarization assembly this first with this second birefringence face for be arrangeding in parallel.
6. light-source system according to claim 1, it is characterized in that, this light polarization assembly includes one first incidence surface and one second incidence surface, and when this random polarization light enters this light polarization assembly by this first incidence surface, can march to this first birefringence face earlier, and this can march to this second birefringence face earlier when light enters this light polarization assembly by this second incidence surface at random.
7. light-source system according to claim 6 is characterized in that, this first incidence surface and this second incidence surface are for be arrangeding in parallel.
8. light-source system according to claim 7 is characterized in that, first incidence surface and this second incidence surface are in the same plane.
9. light-source system according to claim 6 is characterized in that, this light polarization assembly also includes one first exiting surface and one second exiting surface, and this first exiting surface and this second exiting surface are parallel to this first incidence surface.
10. light-source system according to claim 9 is characterized in that, this light polarization assembly also includes one the 3rd exiting surface, is not parallel to this first exiting surface.
11. light-source system according to claim 1 is characterized in that, this module brightening device includes a plurality of these light polarization assemblies and a plurality of this Polarization Modulation assembly, and these light polarization assemblies are side by side parallel to each other.
12. light-source system according to claim 1 is characterized in that, this light source includes a light source generator and a light guide plate.
13. light-source system according to claim 1 is characterized in that, the material of this light polarization assembly is a birefringent material.
14. light-source system according to claim 13 is characterized in that, this birefringent material includes quartz, kalzit or icelandspar.
15. a light-source system, it includes:
At least one light source is in order to produce random polarization light; And
One module brightening device includes:
A plurality of light polarization unit is close to side by side parallelly, and respectively this light polarization unit includes:
The a pair of plane of refraction, with so that one first polarized component of this random polarization light pass through, and one second polarized component that reflects this random polarization light, and the one side of this birefringence face is a reflecting surface, in order to light towards leaving this light polarization unit away from the direction reflection of this light source; And
One exiting surface is not parallel to this birefringence face; And
A plurality of Polarization Modulation assemblies are located at these exiting surface surfaces respectively, so that this second polarized component is converted to this first polarized component;
The random polarization light that wherein this light source produced is directly into being incident upon in these light polarization unit.
16. light-source system according to claim 15, it is characterized in that, respectively this light polarization unit makes this first polarized component penetrate via this birefringence face, and this second polarized component penetrates by this birefringence face reflection after by this exiting surface, leaves this module brightening device via this reflecting surface reflection of another adjacent this light polarization unit again.
17. light-source system according to claim 15 is characterized in that, respectively this light polarization unit has an incidence surface, and this incidence surface, this exiting surface and this birefringence face form a triangular structure.
18. light-source system according to claim 17 is characterized in that, this triangular structure is an isosceles right-angle triangle.
19. light-source system according to claim 15 is characterized in that, respectively this Polarization Modulation assembly is located at this exiting surface from this light polarization unit respectively to the light path of this reflecting surface of this adjacent light polarization unit.
20. light-source system according to claim 15 is characterized in that, this light source includes a light source generator and a light guide plate.
21. light-source system according to claim 15 is characterized in that, the material of this light polarization unit is a birefringent material.
22. light-source system according to claim 21 is characterized in that, this birefringent material includes quartz, kalzit or icelandspar.
23. light-source system according to claim 15 is characterized in that, this Polarization Modulation assembly is 1/1st phase retardation film.
24. a module brightening device, it includes:
One light polarization assembly, it includes at least two light polarization unit, parallel being arranged side by side, and respectively this light polarization unit includes:
One incidence surface is so that random polarization light directly enters this light polarization unit via this incidence surface;
The a pair of plane of refraction uses so that one first polarized component of this random polarization light is passed through, and reflect one second polarized component of this random polarization light, and the one side of this birefringence face is a reflecting surface; And
One first exiting surface and one second exiting surface are not parallel to this birefringence face, and this first exiting surface is perpendicular to this incidence surface;
Wherein this reflecting surface is in order to reflect light to leave this light polarization assembly towards this first exiting surface;
One Polarization Modulation assembly is in order to this second polarized component or this first polarized component rotatory polarization; And
One tool reflectivity diaphragm is used in these light polarization unit of light reflected back.
25. module brightening device according to claim 24 is characterized in that, these second exiting surfaces of these light polarization assemblies are oppositely arranged, and this Polarization Modulation assembly is located between these second exiting surfaces and be in close proximity to these first exiting surface surfaces.
26. module brightening device according to claim 25 is characterized in that, this Polarization Modulation assembly is 1/1st phase retardation film.
27. module brightening device according to claim 26, it is characterized in that, this first polarized component is after passing through this birefringence face of this light polarization unit, can be converted to this second polarized component through behind this Polarization Modulation assembly earlier, be left this module brightening device by this reflecting surface reflection of this adjacent light polarization unit again.
28. module brightening device according to claim 24 is characterized in that, this first polarized component can be left this module brightening device via these reflecting surface reflections by behind these birefringence faces.
29. module brightening device according to claim 24, it is characterized in that, after this second polarized component is reflected by these birefringence faces, after leaving respectively this light polarization unit by this second exiting surface, can be in regular turn by entering respectively this light polarization unit behind this Polarization Modulation assembly, this tool reflectivity diaphragm and this Polarization Modulation assembly again, then by leaving this module brightening device by this first exiting surface behind this birefringence face.
30. module brightening device according to claim 29 is characterized in that, this Polarization Modulation assembly is 1/1st phase retardation film.
31. module brightening device according to claim 24, it is characterized in that, this tool reflectivity diaphragm is positioned at these second exiting surface surfaces, so that the light that this second exiting surface penetrates is reflected and returns in these light polarization unit via this second exiting surface incident.
32. module brightening device according to claim 24 is characterized in that respectively this incidence surface is positioned at the two sides of this light polarization assembly, setting parallel to each other.
33. module brightening device according to claim 24 is characterized in that, respectively this birefringence face of two adjacent these light polarization unit is not parallel mutually, and respectively this birefringence face has identical angle with its this corresponding incidence surface.
34. module brightening device according to claim 24 is characterized in that, this Polarization Modulation assembly is perpendicular to this first incidence surface, and is located between this second exiting surface and this tool reflectivity diaphragm.
35. module brightening device according to claim 24 is characterized in that, the material of this light polarization assembly is a birefringent material.
36. module brightening device according to claim 35 is characterized in that this birefringent material includes quartz, kalzit or icelandspar.
37. a light-source system, it includes:
At least one light source is in order to produce random polarization light; And
A module brightening device according to claim 24 is in close proximity to this light source setting, and this light source is located at least one side of this module brightening device.
38., it is characterized in that this light-source system includes a plurality of at least these light sources according to the described light-source system of claim 37, be located at the both sides of this light polarization assembly respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610071483XA CN100552508C (en) | 2006-03-24 | 2006-03-24 | Light source system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610071483XA CN100552508C (en) | 2006-03-24 | 2006-03-24 | Light source system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101042496A true CN101042496A (en) | 2007-09-26 |
| CN100552508C CN100552508C (en) | 2009-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610071483XA Expired - Fee Related CN100552508C (en) | 2006-03-24 | 2006-03-24 | Light source system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105301842A (en) * | 2015-11-24 | 2016-02-03 | 昆山龙腾光电有限公司 | Backlight module and display device using same |
| CN105408810A (en) * | 2013-07-22 | 2016-03-16 | 富士胶片株式会社 | Liquid-crystal display device |
| CN106154640A (en) * | 2015-03-31 | 2016-11-23 | 联想(北京)有限公司 | Display module and electronic equipment |
| WO2020062884A1 (en) * | 2018-09-28 | 2020-04-02 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN116068694A (en) * | 2023-03-23 | 2023-05-05 | 北京深光科技有限公司 | Polarization conversion component based on micro-nano structure |
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- 2006-03-24 CN CNB200610071483XA patent/CN100552508C/en not_active Expired - Fee Related
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| CN105408810A (en) * | 2013-07-22 | 2016-03-16 | 富士胶片株式会社 | Liquid-crystal display device |
| US10156754B2 (en) | 2013-07-22 | 2018-12-18 | Fujifilm Corporation | Liquid-crystal display device |
| CN105408810B (en) * | 2013-07-22 | 2019-10-29 | 富士胶片株式会社 | Liquid crystal display device |
| CN106154640A (en) * | 2015-03-31 | 2016-11-23 | 联想(北京)有限公司 | Display module and electronic equipment |
| CN106154640B (en) * | 2015-03-31 | 2020-02-21 | 联想(北京)有限公司 | Display module and electronic device |
| CN105301842A (en) * | 2015-11-24 | 2016-02-03 | 昆山龙腾光电有限公司 | Backlight module and display device using same |
| CN105301842B (en) * | 2015-11-24 | 2018-09-18 | 昆山龙腾光电有限公司 | Backlight module and use its display device |
| WO2020062884A1 (en) * | 2018-09-28 | 2020-04-02 | 京东方科技集团股份有限公司 | Display panel and display device |
| US11143812B2 (en) | 2018-09-28 | 2021-10-12 | Boe Technology Group Co., Ltd. | Display panel and display device |
| CN116068694A (en) * | 2023-03-23 | 2023-05-05 | 北京深光科技有限公司 | Polarization conversion component based on micro-nano structure |
| CN116068694B (en) * | 2023-03-23 | 2023-05-30 | 北京深光科技有限公司 | Polarization conversion component based on micro-nano structure |
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|---|---|
| CN100552508C (en) | 2009-10-21 |
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