CN101349833A - Apparatus and method for adjusting light ray and backlight module unit and LCD device using the same - Google Patents
Apparatus and method for adjusting light ray and backlight module unit and LCD device using the same Download PDFInfo
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- CN101349833A CN101349833A CNA2007101386786A CN200710138678A CN101349833A CN 101349833 A CN101349833 A CN 101349833A CN A2007101386786 A CNA2007101386786 A CN A2007101386786A CN 200710138678 A CN200710138678 A CN 200710138678A CN 101349833 A CN101349833 A CN 101349833A
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Abstract
The invention discloses a light adjusting device, a method, a backlight module group and a liquid crystal display device thereof. The light adjusting device at least comprises an inlet device, an internal light source, a light source drive device, a light guide part, a light detector and a controller. The light adjusting method comprises the steps of: inputting environmental light to the light adjusting device; detecting the light character in the light guide part and outputting the detected value to the controller; comparing the detected value with a preset character value to attain an error parameter; judging if the error parameter is lower than a preset threshold value and providing the judgment result; when the error parameter is lower than the preset threshold value, processing a redetection preposition process; or else, processing a correction step and a light mixing step, wherein the correction step adjusts the light characters sent from the internal light source according to the error parameter to adjust the light character in the light guide part. The invention uses environmental light as light source to reduce the power consumption of the internal light source to save electricity.
Description
Technical field
The invention relates to a kind of light adjustment device, particularly relevant for a kind of light adjustment device and method and use the module backlight and the LCD of this device.
Background technology
In daily life, be flooded with various electronic installations, for example: PDA, mobile phone and computer, and these electronic installations also bring considerable convenience for human life.Yet along with the progress and the expanding economy of science and technology, people are more and more for the functional requirement of electronic installation, are accompanied by the increase of function, and the power consumption of electronic installation also constantly rises, so the electricity-saving function of electronic installation also more and more is much accounted of.Da Bufen electronic installation all has display and comes display operation function or image frame now, and these displays utilize backlight to provide to show required light mostly, with the show image picture.The backlight of general display is to comprise optical material and internal light source (for example: CCFL or LED), and the light that internal light source is launched is through optical material evenly after the diffusion, can be as display backlight.Yet therefore the consumed power of internal light source needs a kind of light adjustment device to reduce the consumed power of internal light source usually above the effect wasted work rate of display miscellaneous part, reaches less electricity consumption.
Summary of the invention
One aspect of the present invention is that a kind of light adjustment device and method are being provided, and by utilizing surround lighting as light source, the power consumption that reduces internal light source is to reach less electricity consumption.
Another aspect of the present invention is in that a kind of module backlight is provided, and by utilizing surround lighting as light source, the power consumption that reduces internal light source is to reach less electricity consumption.
Of the present invention is that a kind of LCD is being provided again on the one hand, and by utilizing surround lighting as light source, the power consumption that reduces internal light source is to reach less electricity consumption.
According to above-mentioned purpose of the present invention, light adjustment device of the present invention comprises at least: inlet device, a plurality of internal light source, light source drive device, light guide section, arrangement for detecting and controller.Inlet device is in order to importing surround lighting to light guide section, and internal light source be in order to the emission interior lights to light guide section, and interior lights is evenly mixed in light guide section with surround lighting.Light source drive device is in order to drive internal light source.The light arrangement for detecting is to export the detecting value in order to the characteristic of detecting mixed light, and this detecting value comprises colour temperature detecting value or luminance detection value.Controller is to be worth in order to the reception detecting to control light source drive device adjustment internal light, makes the characteristic of above-mentioned mixed light reach the characteristic preset value that light adjustment device sets.
The above-mentioned purpose according to the present invention, light-regulating method of the present invention comprises at least: surround lighting is inputed to above-mentioned light adjustment device; Detect step, wherein detect step and use arrangement for detecting to detect the characteristic of the light in the light guide section, and output detecting value; The detecting value is inputed to controller; Use the controller relatively value of detecting and preset property value, to obtain error parameter; Whether the error in judgement parameter is less than pre-set threshold value and judged result is provided; If judged result is for being then to detect preposition step again, to detect step again; And if judged result for otherwise carry out aligning step and blend step, wherein aligning step is to utilize controller that error parameter is converted to correction parameter, and export correction parameter to light source drive device, so that light source is exported interior lights accordingly to light guide section, blend step is that interior lights and surround lighting are evenly mixed in light guide section.
According to above-mentioned purpose of the present invention, module backlight of the present invention comprises at least: inlet device, a plurality of internal light source, light source drive device, light guide plate, arrangement for detecting, controller and optical material diaphragm group.Inlet device is in order to importing surround lighting to module backlight, and internal light source in order to the emission interior lights to light guide section, interior lights is evenly mixed in light guide plate with surround lighting.Light source drive device is in order to drive internal light source.The light arrangement for detecting is to export the detecting value in order to the characteristic of detecting mixed light, and this detecting value comprises colour temperature detecting value or luminance detection value.Controller is to be worth the characteristic of controlling light source drive device adjustment internal light in order to receive detecting, makes the characteristic of mixed light reach the preset value that light adjustment device sets.Optical material diaphragm group is in order to spread above-mentioned mixed light, with the briliancy distribution of even module backlight.
According to above-mentioned purpose of the present invention, LCD of the present invention comprises at least: module backlight and display panel, module wherein backlight comprises inlet device, a plurality of internal light source, light source drive device, light guide plate, arrangement for detecting, controller and optical material diaphragm group, and panel then comprises liquid crystal layer and substrate.
Because the present invention has adopted above technical scheme, in module backlight, inlet device is in order to importing surround lighting to module backlight, and internal light source in order to the emission interior lights to light guide section, interior lights is evenly mixed in light guide plate with surround lighting.Light source drive device is in order to drive internal light source.The light arrangement for detecting is exported the detecting value in order to the characteristic of detecting mixed light, and this detecting value comprises colour temperature detecting value or luminance detection value.Controller is worth the characteristic of controlling light source drive device adjustment internal light in order to receive detecting, makes the characteristic of mixed light reach the preset value that light adjustment device sets.Optical material diaphragm group is in order to spread above-mentioned mixed light, with the briliancy distribution of even module backlight.
Because the present invention has adopted above technical scheme, in display panel, above-mentioned substrate system comprises a plurality of transistor switches, these transistor switches are in order to the arrangement mode of the control liquid crystal molecule that liquid crystal layer comprised, and the arrangement mode may command of liquid crystal molecule is by the light quantity of the mixed light of display panel, therefore display panel can utilize transistor switch to control liquid crystal molecule, has the picture of different GTGs with demonstration.
Again, the light arrangement for detecting of above-mentioned LCD can be arranged in the above-mentioned substrate, to save space and cost.
Description of drawings
For above-mentioned and other purposes of the present invention, feature and advantage can be become apparent, below especially exemplified by a preferred embodiment, and cooperate appended graphicly, be described in detail below:
It is function block schematic diagram according to the light adjustment device of the first embodiment of the present invention that Fig. 1 illustrates.
It is schematic flow sheet according to the control method of the light adjustment device of the first embodiment of the present invention that Fig. 2 illustrates.
It is workflow synoptic diagram according to the controller of the first embodiment of the present invention that Fig. 3 illustrates.
It is the exploded perspective view of light adjustment device according to a second embodiment of the present invention that Fig. 4 illustrates.
Fig. 5 illustrates the exploded perspective view of the light adjustment device that is a third embodiment in accordance with the invention.
Fig. 6 illustrates the exploded perspective view of the light adjustment device that is a fourth embodiment in accordance with the invention.
It is the exploded perspective view of light adjustment device according to a fifth embodiment of the invention that Fig. 7 illustrates.
It is the exploded perspective view of light adjustment device according to a sixth embodiment of the invention that Fig. 8 illustrates.
It is the exploded perspective view of module backlight according to a seventh embodiment of the invention that Fig. 9 illustrates.
It is structural representation according to the LCD of the eighth embodiment of the present invention that Figure 10 illustrates.
The main element symbol description is described as follows among the figure:
100: light adjustment device 110: inlet device
110a: the first inlet device group 110b: the second inlet device group
112: internal light source 112a: the first internal light source group
112b: the second internal light source group 114: light source drive device
116: light guide section 118: the light arrangement for detecting
118a: the first smooth arrangement for detecting group 118b: the second smooth arrangement for detecting group
120: controller 122: framework
123: light entrance port 124: surround lighting
126: interior lights 128: mixed light
130: the detecting value
133: red light emitting diodes 134: blue LED
135: green LED 140: regulating device
150: control method 152: the surround lighting input step
154: detecting step 156: detecting value input step
158: colour temperature coordinate switch process 160: comparison step
162: error judgment step 164: detect preposition step again
166: aligning step 168: blend step
200: light adjustment device 202: optical material portion
206: first surface 208: second surface
300: light adjustment device 310: side
310a: the first side 310b: second side
310c: side 310d: side
320: reflecting plate 400: light adjustment device
500: light adjustment device 600: light adjustment device
700: module 710 backlight: optical material diaphragm group
800: LCD 814: liquid crystal layer
816: substrate 820: transistor switch
822: liquid crystal molecule Lsensor: the luminance parameter of mixed light
Ltarget: default brightness value L error: luminance errors parameter
Xerror, Yerror: colour temperature error parameter
Xsensor, Ysensor: the two-dimentional colour temperature coordinate values of mixed light
Xtarget, Ytarget: default two-dimentional colour temperature coordinate values
CorrectionFactor_R: red light correction parameter
CorrectionFactor_G: green light correction parameter
CorrectionFactor_B: blue light correction parameter
Embodiment
Please refer to Fig. 1, it illustrates is function block schematic diagram according to the light adjustment device 100 of the first embodiment of the present invention.This light adjustment device 100 comprises at least: inlet device 110, internal light source 112, light source drive device 114, light guide section 116, light arrangement for detecting 118 and controller 120, wherein inlet device 110 comprises framework, framework comprises the light entrance port, and inlet device 110 is in order to import surround lighting 124 to light guide section 116.Internal light source 112 and makes surround lighting 124 evenly mix in light guide section 116 with interior lights 126 in order to emission interior lights 126, with acquisition mixed light 128.Light arrangement for detecting 118 is correspondingly exported detecting value 130 in order to the characteristic of detecting mixed light 128, and wherein detecting value 130 can for example be colour temperature (color temperature) detecting value or brightness (brightness) detecting value.Controller 120 is in order to control light source drive device 114 according to detecting value 130, make light source drive device 114 adjust internal light source 112 according to the indication of controller 120, to adjust the characteristic of interior lights 126, so can make the characteristic of mixed light 128 can reach the characteristic preset value, wherein the characteristic preset value can for example be light adjustment device 100 default colour temperature preset value or brightness preset values.In the present embodiment, internal light source 112 can include red light emitting diodes 133, blue LED 134 and green LED 135; Inlet device 110 can have regulating device 140, and regulating device 140 is gone into light quantity, the light quantity that enters light guide section 116 with adjusting in order to what adjust inlet device 110.
Please be simultaneously with reference to Fig. 2 and Fig. 3, it is schematic flow sheet according to the control method 150 of the light adjustment device 100 of the first embodiment of the present invention that Fig. 2 illustrates, Fig. 3 illustrates the workflow synoptic diagram according to the controller 120 of the first embodiment of the present invention.In surround lighting input step 152, surround lighting 124 is inputed to light adjustment device 100.In detecting step 154, utilize light arrangement for detecting 118 to detect the characteristic of mixed light 128, be converted to detecting value 130 with characteristic with mixed light 128.It should be noted that then mixed light 128 equals surround lighting 124 if this moment, internal light source 112 was not opened as yet.In detecting value input step 156, detecting value 130 is inputed in the controller 120.In colour temperature coordinate switch process 158, utilize controller 120 detecting value 130 is converted to the color temperature value of representing mixed light 128 two-dimentional colour temperature coordinate values (Xsensor, Ysensor) and represent the luminance parameter Lsensor of the brightness value of mixed light 128.In comparison step 160, be utilize controller 120 to come comparative characteristic preset value and two-dimentional colour temperature coordinate values (Xsensor Ysensor) and luminance parameter Lsensor, and provides error parameter.In the present embodiment, the characteristic preset value comprise default two-dimentional colour temperature coordinate values (Xtarget, Ytarget) and default brightness value L target, error parameter be the colour temperature error parameter (Xerorr, Yerorr) and luminance errors parameter L error.In error judgment step 162, utilize controller 120 to come the error in judgement parameter whether less than pre-set threshold value and export judged result.If judged result is for being then to detect preposition step 164 again; If judged result is then carried out aligning step 166 for not.In detecting preposition step 164 again, judge whether through a Preset Time or a satisfied predetermined registration operation condition, to detect step 154 again.In aligning step 166, with colour temperature error parameter (Xerorr, Yerorr) and luminance errors parameter L erorr convert red light correction parameter Correction_R to, green light correction parameter Correction_G and blue light correction parameter Correction_B, then with red light correction parameter Correction_R, green light correction parameter Correction_G and blue light correction parameter Correction_B export light source drive device 114 to, make light source drive device 114 adjust red light emitting diodes 133, the electric current of blue LED 134 and green LED 135 is to change the characteristic of interior lights 126.In blend step 168, be that adjusted interior lights 126 is mixed in light guide section 116 once again with surround lighting 124, meet the mixed light 128 of demand with output.
Please refer to Fig. 4, it illustrates is the exploded perspective view of light adjustment device 200 according to a second embodiment of the present invention.Light adjustment device 200 is similar to light adjustment device 100, but the inlet device 110 of light adjustment device 200 more comprises optical material portion 202, optical material portion 202 can make surround lighting 124 can be imported into equably in the light guide section 116, takes place to avoid mixing uneven situation.In the second embodiment of the present invention, light guide section 116 has first surface 206 and second surface 208, and wherein first surface 206 is with respect to second surface 208.Inlet device 110 is arranged at the position of contiguous first surface 206, imports surround lighting 124 to see through first surface 206.Light arrangement for detecting 118 is arranged at the position of contiguous second surface 208, the characteristic of the mixed light 128 that mixes with detecting.Internal light source 112 be arranged at first surface 206 and inlet device 110 between, inject interior lights 126 to light guide section 116 to see through first surface 206.The mixed light 128 that meets the characteristic preset value is to penetrate from second surface 208.Regulating device 140 can for example be a door panel structure, and this door panel structure system is adjacent to the light incident 123 of framework 122, control gate plate structure suitably, and promptly may command enters the light quantity of the surround lighting 124 of light guide section 116.
Please refer to Fig. 5, it illustrates the exploded perspective view of the light adjustment device 300 that is a third embodiment in accordance with the invention.Light adjustment device 300 is similar to light adjustment device 200, but light adjustment device 300 with light adjustment device 200 differences is: inlet device 110 is arranged at the position of adjacent side face 310, import surround lighting 124 to light guide section 116 to see through side 310, wherein side 310 is adjacent with second surface 208 with first surface 206.Light adjustment device 300 can increase the light quantity of the surround lighting 124 that is directed into light guide section 116, further to reduce the power consumption of internal light source 112.In addition, light adjustment device 300 also can be provided with the position of reflecting plate 320 in contiguous first surface 206, so can increase the utilization ratio of mixed light 128.
Please refer to Fig. 6, it illustrates the exploded perspective view of the light adjustment device 400 that is a fourth embodiment in accordance with the invention.Light adjustment device 400 is similar to light adjustment device 300, but the internal light source 112 of light adjustment device 400 is to be arranged at first side 310a of adjacent side face 310 and the position of the second side 310b, light arrangement for detecting 118 then is arranged at the position of contiguous remaining side 310c and 310d, wherein internal light source 112 is divided into the first internal light source group 112a and the second internal light source group 112b, and the first internal light source group 112a is with respect to the second internal light source group 112b; Light arrangement for detecting 118 also is divided into the first smooth arrangement for detecting group 118a and the second smooth arrangement for detecting group 118b, and the first smooth arrangement for detecting group 118a is with respect to the second smooth arrangement for detecting group 118b.
Please refer to Fig. 7, it illustrates is the exploded perspective view of light adjustment device 500 according to a fifth embodiment of the invention.Light adjustment device 500 similar light adjustment devices 200, but the light arrangement for detecting 118 of light adjustment device 500 is arranged at the position of adjacent side face 310.
Please refer to Fig. 8, it illustrates is the exploded perspective view of light adjustment device 600 according to a sixth embodiment of the invention.Light adjustment device 600 similar light adjustment devices 500, but the inlet device 110 of light adjustment device 600 is arranged at the position of the contiguous first side 310a and the second side 310b, and light arrangement for detecting 118 is arranged at the position of contiguous remaining side 310c and 310, so can increase the light quantity of the surround lighting 124 that enters light guide section 116, wherein inlet device 110 is divided into the first inlet device group 110a and the second inlet device group 110b, and the first inlet device group 110a is with respect to the second inlet device group 110b; Light arrangement for detecting 118 is divided into the first smooth arrangement for detecting group 118a and the second smooth arrangement for detecting group 118b, and the first smooth arrangement for detecting group 118a is with respect to the second smooth arrangement for detecting group 118b.In addition, light adjustment device 600 also can be provided with the position of reflecting plate 320 in contiguous first surface 206, so can increase the utilization ratio of mixed light 128.
Please refer to Fig. 9, it illustrates is the exploded perspective view of module backlight 700 according to a seventh embodiment of the invention.Module 700 backlight comprises light adjustment device 200 and optical material diaphragm group 710.The mixed light 128 that optical material diaphragm group 710 is launched in order to diffusion light line adjusting device 200 is with the briliancy distribution of even module 700 backlight.In the 7th embodiment, light guide section 116 can be light guide plate (light guide plate), and light guide plate can penetrate the light that enters light guide plate outside the light guide plate 810 equably.Because module 700 backlight comprises light adjustment device 200, therefore, the more power saving of module backlight of module 700 comparable prior aries backlight.
Please refer to Figure 10, it illustrates is structural representation according to the LCD 800 of the ninth embodiment of the present invention.LCD 800 comprises: module 700 backlight and panel 812, wherein panel 812 comprises liquid crystal layer 814 and substrate 816.Substrate 816 comprises transistor switch 820, liquid crystal layer 814 comprises liquid crystal molecule 822, transistor switch 820 is injected the light quantity of the mixed light 128 of panel 812 in order to the arrangement mode adjustment of control liquid crystal molecule 822, makes panel 812 can show the picture with different GTGs.In the present embodiment, light arrangement for detecting 118 also can be positioned on the substrate 816, with space and the cost of saving module 700 backlight, for example: the light arrangement for detecting 118 that forms transistor architecture in substrate 816.
Though the present invention discloses as above with embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is with being as the criterion that claims scope is defined.
Claims (17)
1. a light adjustment device is characterized in that, comprises at least:
One light guide section, described light guide section have a first surface, a second surface relative with described first surface and adjacent to a side of described first surface and described second surface;
At least one inlet device is in order to import a surround lighting to described light guide section;
A plurality of internal light sources, in order to launch an interior lights to described light guide section, wherein said interior lights and described surround lighting evenly mix in described light guide section, and form a mixed light, and described mixed light penetrates from described second surface;
One light source drive device is in order to drive described internal light source;
At least one smooth arrangement for detecting is exported a detecting value in order to the characteristic of detecting described mixed light; And
One controller is controlled described light source drive device in order to be worth according to described detecting, adjusts described internal light source, so that the characteristic of described mixed light reaches a preset property value.
2. light adjustment device as claimed in claim 1 is characterized in that, described internal light source is to be adjacent to described side.
3. light adjustment device as claimed in claim 2 is characterized in that, described internal light source is divided into one first internal light source group and one second internal light source group, and the described first internal light source group is with respect to the described second internal light source group.
4. light adjustment device as claimed in claim 1 is characterized in that, described at least one inlet device is adjacent to described side.
5. light adjustment device as claimed in claim 4 is characterized in that, described at least one inlet device is divided into one first inlet device group and one second inlet device group, and the described first inlet device group is with respect to the described second inlet device group.
6. light adjustment device as claimed in claim 1 is characterized in that, described at least one smooth arrangement for detecting is adjacent to described side.
7. light adjustment device as claimed in claim 6 is characterized in that, described at least one smooth arrangement for detecting is divided into one first smooth arrangement for detecting group and one second smooth arrangement for detecting group, and the described first smooth arrangement for detecting group is with respect to the described second smooth arrangement for detecting group.
8. light adjustment device as claimed in claim 1 is characterized in that, described internal light source comprises a plurality of red light emitting diodes, a plurality of blue LED and a plurality of green LED.
9. light adjustment device as claimed in claim 8, it is characterized in that, described controller is in order to more described characteristic preset value and described detecting value and export a correction parameter, and described light source drive device is adjusted the characteristic of the characteristic of described red light emitting diodes, described blue LED and the characteristic of described green LED according to described correction parameter.
10. light adjustment device as claimed in claim 1 is characterized in that, described at least one smooth arrangement for detecting is adjacent to described second surface.
11. light adjustment device as claimed in claim 1 is characterized in that, described internal light source is adjacent to described first surface.
12. light adjustment device as claimed in claim 1 is characterized in that, described at least one inlet device is adjacent to described first surface.
13. light adjustment device as claimed in claim 1, it is characterized in that, described at least one inlet device has a regulating device and an optical material portion, described regulating device is in order to adjusting the light quantity of going into of described at least one inlet device, and described optical material portion is in order to be directed into described light guide section equably with described surround lighting.
14. a module backlight is characterized in that, comprises at least:
One light guide plate, described light guide plate have a first surface, a second surface relative with described first surface and adjacent to a side of described first surface and described second surface;
At least one inlet device is in order to import a surround lighting to described light guide plate;
A plurality of internal light sources, in order to launch an interior lights to described light guide plate, wherein said interior lights and described surround lighting evenly mix in described light guide plate, and form a mixed light, and described mixed light penetrates from described second surface;
One light source drive device is in order to drive described internal light source;
At least one smooth arrangement for detecting is exported a detecting value in order to the characteristic of detecting described mixed light, and wherein said detecting value comprises a colour temperature detecting value or a luminance detection value at least;
One controller is controlled described light source drive device in order to be worth according to described detecting, adjusts described internal light source, so that the characteristic of described mixed light reaches a preset property value; And
One optics matrix group, described optics matrix group is in order to spread described mixed light, with the evenly briliancy distribution of described module backlight.
15. a LCD is characterized in that, comprises at least:
One module backlight comprises at least:
One light guide plate, wherein said light guide plate have a first surface, a second surface relative with described first surface and adjacent to a side of described first surface and described second surface;
At least one inlet device is in order to import a surround lighting to described light guide plate;
A plurality of internal light sources, in order to launch an interior lights to described light guide plate, wherein said interior lights and described surround lighting evenly mix in described light guide plate, and form a mixed light;
One light source drive device is in order to drive described internal light source;
At least one smooth arrangement for detecting is exported a detecting value in order to the characteristic of detecting described mixed light, and wherein said detecting value comprises a colour temperature detecting value or a luminance detection value at least;
One controller is controlled described light source drive device in order to be worth according to described detecting, adjusts described internal light source, so that the characteristic of described mixed light reaches a preset property value; And
One optics matrix group, described optics matrix group is in order to spread described mixed light, with the evenly briliancy distribution of described module backlight;
One panel comprises at least:
One liquid crystal layer comprises a plurality of liquid crystal molecules; And
One substrate has a plurality of transistor switches, and described transistor switch is adjusted light quantity by the described mixed light of described display panel in order to the arrangement mode of controlling described liquid crystal molecule;
Wherein said module backlight penetrates described mixed light to described panel from described second surface.
16. a light-regulating method is characterized in that, comprises at least:
One surround lighting is inputed to a light adjustment device, and wherein said light adjustment device comprises a light guide section, a plurality of internal light source, a light source drive device, at least one smooth arrangement for detecting and a controller at least;
Carry out a detecting step, wherein said detecting step uses described smooth arrangement for detecting to detect the characteristic of the light in the described light guide section, and exports a detecting value;
Described detecting value is inputed to described controller;
Use described controller to come a more described detecting value and a preset property value, to obtain an error parameter;
Judge that described error parameter is whether less than a pre-set threshold value and a judged result is provided;
If described judged result for being, is then detected preposition step, again and again to carry out described detecting step again; And
If described judged result is for denying, then carry out an aligning step and a blend step, wherein said aligning step is to utilize described controller that described error parameter is converted to a correction parameter, and export described correction parameter to described light source drive device, so that described light source is exported an interior lights accordingly to described light guide section, described blend step is that described interior lights and described surround lighting are evenly mixed in described light guide section.
17. light-regulating method as claimed in claim 16 is characterized in that, described to detect preposition step again be to determine whether carrying out described detecting step according to a Preset Time or an operating conditions.
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| CN2007101386786A CN101349833B (en) | 2007-07-20 | 2007-07-20 | Apparatus and method for adjusting light ray and backlight module unit and LCD device using the same |
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| CN2007101386786A CN101349833B (en) | 2007-07-20 | 2007-07-20 | Apparatus and method for adjusting light ray and backlight module unit and LCD device using the same |
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| CN101876753A (en) * | 2010-06-03 | 2010-11-03 | 香港应用科技研究院有限公司 | The blending illumination system of head-up display |
| CN102281447A (en) * | 2011-08-17 | 2011-12-14 | 福建华映显示科技有限公司 | Display and method for white balance correction |
| US8149351B2 (en) | 2008-12-08 | 2012-04-03 | 3M Innovative Properties Company | Passive and hybrid daylight-coupled backlights for sunlight viewable displays |
| US8228463B2 (en) | 2009-11-18 | 2012-07-24 | 3M Innovative Properties Company | Passive daylight-coupled backlight with turning film having prisms with chaos for sunlight viewable displays |
| US8339542B2 (en) | 2009-06-26 | 2012-12-25 | 3M Innovative Properties Company | Passive and hybrid daylight-coupled N-stack and collapsible backlights for sunlight viewable displays |
| US8384852B2 (en) | 2010-11-22 | 2013-02-26 | 3M Innovative Properties Company | Hybrid daylight-coupled backlights for sunlight viewable displays |
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| CN113470566A (en) * | 2021-06-23 | 2021-10-01 | 海尔(深圳)研发有限责任公司 | Color temperature adjusting method, device and system for display screen, air conditioner and medium |
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| CN100489613C (en) * | 2004-03-04 | 2009-05-20 | 友达光电股份有限公司 | Backlight assembly and its light source assembly |
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| US8149351B2 (en) | 2008-12-08 | 2012-04-03 | 3M Innovative Properties Company | Passive and hybrid daylight-coupled backlights for sunlight viewable displays |
| US8339542B2 (en) | 2009-06-26 | 2012-12-25 | 3M Innovative Properties Company | Passive and hybrid daylight-coupled N-stack and collapsible backlights for sunlight viewable displays |
| US8228463B2 (en) | 2009-11-18 | 2012-07-24 | 3M Innovative Properties Company | Passive daylight-coupled backlight with turning film having prisms with chaos for sunlight viewable displays |
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