CN103499058B - A kind of backlight module, display device and using method thereof - Google Patents
A kind of backlight module, display device and using method thereof Download PDFInfo
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- CN103499058B CN103499058B CN201310503838.8A CN201310503838A CN103499058B CN 103499058 B CN103499058 B CN 103499058B CN 201310503838 A CN201310503838 A CN 201310503838A CN 103499058 B CN103499058 B CN 103499058B
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Abstract
The embodiment of the present invention provides a kind of backlight module, display device and using method thereof, relates to field of liquid crystal display, it is possible to reduce right and left eyes view crosstalk, improves 3D viewing effect. Described backlight module includes: backboard, diffuser plate, and described backboard arranges at least one LED lamp bar, and described backlight module also includes: at least one reflector plate, and described reflector plate is between described backlight and described diffuser plate; Control unit, for when the first LED lamp bar is lighted, controlling the unlatching of the reflector plate corresponding with described first LED lamp bar. The present invention is applied to field of liquid crystal display.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of backlight module, display device and using method thereof.
Background technology
Along with developing rapidly of science and technology, TV industry also experienced by from black and white to color, and high definition is to the technological progress of 3D (ThreeDimensions, three-dimensional), and nowadays people can enjoy the third dimension on the spot in person that 3D TV brings. The displaying principle of 3D TV is to make the image that beholder's right and left eyes is seen differ, left eye sees the image of corresponding left eye, and right eye sees the image of corresponding right eye, and two such eyes have just had parallax, due to the existence of parallax, people just can be appreciated that a three-dimensional image in the process of viewing.
Currently used 3D lcd technology, adopt backlight scanning technique line by line, namely backlight includes at least one LED (LightEmittingDiode, light emitting diode) lamp bar, at least one LED lamp bar described is lighted line by line, this 3D lcd technology is by dividing the image into two a series of paintings faces of corresponding left eye and right eye, and continuous interlaced display out, enables left and right eyes to see respective picture in the moment of regulation. Show line by line when liquid crystal panel display 3D rendering, the light that one of them LED lamp bar on backlight sends is after diffuser plate, illuminate the region that on liquid crystal panel, this LED lamp bar is corresponding, input needs the view data of display on the area, namely the image completing this row shows, the display of each two field picture has needed the display of all row from top to bottom, is called single pass. But after wherein a line image of liquid crystal panel has shown, then next LED lamp bar display next line image is lighted, the view data that now this row shows still retains, when next LED lamp bar is lit time, light not only can illuminate the liquid crystal panel of next line, some light also can scatter on this row liquid crystal panel so that the view data of reservation continues to show, and forms crosstalk. Owing to the left and right fields of vision image of 3D signal is continuous interlaced display, left eye that adjacent twice sweep shows respectively and the image of right eye, therefore beholder while seeing left-eye image it also seen that eye image, or simultaneously view left-eye image what see eye image, so may result in right and left eyes view crosstalk, affect 3D viewing effect.
Summary of the invention
Embodiments of the invention provide a kind of backlight module, display device and using method thereof, it is possible to reduce right and left eyes view crosstalk, improve 3D viewing effect.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
On the one hand, it is provided that a kind of backlight module, described backlight module includes backboard, diffuser plate, and described backboard arranges at least one LED lamp bar, and described backlight module also includes:
At least one reflector plate, described reflector plate is between described backlight and described diffuser plate;
Control unit, for when the first LED lamp bar is lighted, control the unlatching of the reflector plate corresponding with described first LED lamp bar, make the reflector plate that the light that described first LED lamp bar sends can pass through to open be directed through described diffuser plate after, the region that to be irradiated on liquid crystal panel described first LED lamp bar corresponding.
Optionally, when described backlight module includes at least two reflector plate, described control unit is additionally operable to:
When the first LED lamp bar is lighted, control other reflector plates to close, the pent reflector plate of light that described first LED lamp bar sends is stopped, other regions outside the region that cannot to be irradiated on liquid crystal panel described first LED lamp bar corresponding, other reflector plates described are the reflector plate in described at least two reflector plate except the reflector plate corresponding with described first LED lamp bar.
Optionally, described control unit is additionally operable to:
When the first LED lamp bar is lighted, the reflector plate controlling the reflector plate corresponding with described first LED lamp bar adjacent is inclined, make the guiding by inclined reflector plate of light that described first LED lamp bar sends, the region that to be irradiated on described diffuser plate described first LED lamp bar corresponding.
Optionally, the length direction of described reflector plate is parallel with the length direction of described LED lamp bar, and the width of each described reflector plate is parallel with the width of described LED lamp bar; The length direction of the reflector plate of described unlatching is vertical with described backboard place plane with the plane that width is constituted; The length direction of the reflector plate of described closedown is parallel with described backboard place plane with the plane that width is constituted; The plane that the length direction of described inclined reflector plate and width are constituted is predetermined angle with described backboard place plane.
Optionally, on each described reflector plate, the direction parallel with the length direction of described reflector plate is provided with rotating shaft, and described rotating shaft can rotate under the control of described control unit, drives described reflector plate to present different conditions.
Optionally, the dead in line of each described rotating shaft place straight line and corresponding reflector plate, the length direction of the parallel described reflector plate of described axis.
Optionally, each described reflector plate near the thickness at described axis place more than the thickness away from described axis place.
Optionally, each described rotating shaft is connected to a drive motor, or all rotating shafts are connected to a drive motor; Described drive motor is connected with described control unit, and under the control of described control unit, described drive motor drives corresponding rotating shaft to rotate.
On the one hand, it is provided that a kind of display device, including:
Backlight module described in claim 1 to 9 any one claim;
And liquid crystal panel.
On the one hand, it is provided that a kind of backlight module using method, including:
When the first LED lamp bar is lighted, control the unlatching of the reflector plate corresponding with described first LED lamp bar, make the reflector plate that the light that described first LED lamp bar sends can pass through to open be directed through described diffuser plate after, the region that to be irradiated on liquid crystal panel described first LED lamp bar corresponding;
Extinguish in the first LED lamp bar, when second LED lamp bar adjacent with the first LED lamp bar is lighted, the described reflector plate corresponding with the first LED lamp bar cuts out or is in heeling condition, the described reflector plate corresponding with the second LED lamp bar is opened, make the reflector plate that the light that described second LED lamp bar sends can pass through to open be directed through described diffuser plate after, the region that to be irradiated on liquid crystal panel described second LED lamp bar corresponding.
The embodiment of the present invention provides a kind of backlight module, display device and using method thereof, when liquid crystal panel carries out 3D rendering display, described backlight module realizes the display of the left and right view on liquid crystal panel by the synchronous scanning of view data in described backlight and liquid crystal panel, and described reflector plate makes the light that described first LED lamp bar sends can not be irradiated to other regions except the region of liquid crystal panel corresponding to described first LED lamp bar; The light that described first LED lamp bar sends is irradiated to the part light of the adjacent reflector plate of reflector plate corresponding to described first LED lamp bar, reflection through described neighboring reflection sheet, again described first LED lamp bar location is converged to, by the diffuser plate region that to be irradiated on described liquid crystal panel described first LED lamp bar corresponding. Because during liquid crystal panel display 3D rendering, it it is continuous interlaced display left and right view, when described backlight module makes described liquid crystal panel show a view, the image in the region that described first LED lamp bar is corresponding can clearly show, the image in other regions remaining another viewdata shows almost without method, thus decreasing left and right view crosstalk, and make the picture quality shown more excellent simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The schematic diagram of a kind of backlight module that Fig. 1 provides for the embodiment of the present invention;
The positional structure schematic diagram of a kind of reflector plate that Fig. 2 provides for the embodiment of the present invention;
The schematic diagram of the another kind of backlight module that Fig. 3 provides for the embodiment of the present invention;
The schematic diagram of another backlight module that Fig. 4 provides for the embodiment of the present invention;
The schematic diagram of the reflector plate of the backlight module that Fig. 5 provides for the embodiment of the present invention;
The schematic diagram of another backlight module that Fig. 6 provides for the embodiment of the present invention;
The schematic diagram of the another kind of again backlight module that Fig. 7 provides for the embodiment of the present invention;
The schematic diagram of still another backlight module that Fig. 8 provides for the embodiment of the present invention;
Fig. 9 is the cut away view of the reflector plate of backlight module provided by the invention;
The structural representation of the display device that Figure 10 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
The embodiment of the present invention provides a kind of backlight module 10, as it is shown in figure 1, include backboard 101, diffuser plate 102, described backboard 101 arranges at least one LED lamp bar 103, described backboard 101 and at least one LED lamp bar 103 described and forms backlight 104.The image that described backlight module 10 is realized on liquid crystal panel by described backlight 104 and the synchronous scanning of view data in liquid crystal panel (Fig. 1 does not indicate) shows, namely when a LED lamp bar of backlight 104 is lighted, liquid crystal panel shows the image in region corresponding to this LED lamp bar, after this row image has shown, and then next adjacent with this LED lamp bar LED lamp bar is lighted, then liquid crystal panel shows the image in region corresponding to next LED lamp bar adjacent with this LED lamp bar, by that analogy, until a two field picture is by complete display, again with same method display next frame image.
Described backlight module 10 also includes:
At least one reflector plate 105, described reflector plate 105 is between described backlight 104 and described diffuser plate 102.
Control unit (Fig. 1 does not indicate), for when the first LED lamp bar 1031 is lighted, control the unlatching of the reflector plate 105-A corresponding with described first LED lamp bar 1031, make the reflector plate 105-A that the light that described first LED lamp bar 1031 sends can pass through to open be directed through described diffuser plate after, the region being irradiated on described diffuser plate liquid crystal panel described first LED lamp bar 1031 correspondence. Needing explanation, when described reflector plate 105 is opened, the length direction of described reflector plate 105 is vertical with described backboard 101 place plane with the plane that width is constituted.
So, when the first LED lamp bar is lighted, reflector plate corresponding with this first LED lamp bar at least one reflector plate described is opened, make the light that this first LED lamp bar sends can pass through diffuser plate, the region that to be irradiated on liquid crystal panel this first LED lamp bar corresponding, and due to the guiding of the reflector plate corresponding with this first LED lamp bar, greatly reduce the light in other regions that this first LED lamp bar is irradiated on liquid crystal panel except the region corresponding with described first LED lamp bar, therefore, the image in region corresponding with described first LED lamp bar on liquid crystal panel can clearly show, other regions described are likely to the image of residual and are little to display, so, when described liquid crystal panel will carry out 3D rendering display, can effectively reduce the crosstalk of left and right view, improve 3D viewing effect.
Further, when described backlight module 10 includes at least two reflector plate 105, described control unit is used for: when the first LED lamp bar 1031 is lighted, control other reflector plates to close, the pent reflector plate of light that described first LED lamp bar 1031 sends is stopped, other regions outside the region that cannot be irradiated on liquid crystal panel described first LED lamp bar 1031 correspondence, other reflector plates described are the reflector plate in described at least two reflector plate 105 except reflector plate 105-A. Or when described backlight module 10 includes at least two reflector plate 105, described control unit can be also used for: when the first LED lamp bar 1031 is lighted, control corresponding with described first LED lamp bar 1031 reflector plate adjacent for reflector plate 105-A inclined, make the guiding by inclined reflector plate of light that described first LED lamp bar 1031 sends, after described diffuser plate 102, the region being irradiated on liquid crystal panel described first LED lamp bar 1031 correspondence.
The reflector plate 105 of the embodiment of the present invention is as shown in Figure 2, the length direction of each reflector plate in described reflector plate 105 is parallel with the length direction of described LED lamp bar 103, and the width of each reflector plate in described reflector plate 105 is parallel with the width of described LED lamp bar 103.
Concrete, as shown in Figure 3, when described backlight module 10 includes at least two reflector plate 105, and the length direction of each reflector plate in described reflector plate 105 is parallel with the length direction of described LED lamp bar 103, when the width of each reflector plate in described reflector plate 105 is parallel with the width of described LED lamp bar 103, described control unit is used for: when the first LED lamp bar 1031 is lighted, control other reflector plates 105-B to close, the pent reflector plate 105-B of light that described first LED lamp bar 1031 sends is stopped, other regions outside the region that cannot be irradiated on liquid crystal panel described first LED lamp bar 1031 correspondence, described other reflector plates 105-B is the reflector plate in described at least two reflector plate 105 except reflector plate 105-A, when described reflector plate 105-B closes, the length direction of shown reflector plate 105-B is parallel with described backboard 101 place plane with the plane that width is constituted. so, when described first LED lamp bar 1031 is lighted, described reflector plate 105-A opens, described other reflector plates 105-B closes, make the region that light that described first LED lamp bar 1031 sends is irradiated on liquid crystal panel described first LED lamp bar 1031 correspondence by described diffuser plate 102, greatly reduce the light being irradiated to other regions except the region of liquid crystal panel corresponding to described first LED lamp bar, so that the image in the described liquid crystal panel region that only has described first LED lamp bar 1031 correspondence can show, the after image in other regions cannot show, decrease view crosstalk.
As shown in Figure 4, when described backlight module 10 includes at least two reflector plate 105, and the length direction of each reflector plate in described reflector plate 105 is parallel with the length direction of described LED lamp bar 103, when the width of each reflector plate in described reflector plate 105 is parallel with the width of described LED lamp bar 103, described control unit can be also used for: when the first LED lamp bar 1031 is lighted, control corresponding with described first LED lamp bar 1031 reflector plate 105-C adjacent for reflector plate 105-A inclined, make the guiding by inclined reflector plate 105-C of light that described first LED lamp bar 1031 sends, after described diffuser plate 102, the region being irradiated on liquid crystal panel described first LED lamp bar 1031 correspondence. when described reflector plate 105 is inclined, the plane that the length direction of described reflector plate 105 and width are constituted is predetermined angle with described backboard 101 place plane, in actual applications, described predetermined angle can configure as the case may be, as shown in Figure 5, X-axis is perpendicular to the length direction of described reflector plate 105-A and the plane of width composition in the diagram, and the direction that X-axis positive direction LED lamp bar along backlight described in single pass is lighted line by line, i.e. direction from left to right in Fig. 4, then in single pass, complete the side of scanning adjacent to the reflector plate 105-C and X-axis positive direction angulation i of reflector plate 105-A less than 90 degree, it is not fully complete the side of the scanning reflector plate 105-C and X-axis positive direction angulation j adjacent to reflector plate 105-A more than 90 degree, under normal circumstances, angle i and angle j is complementary. so, when described first LED lamp bar 1031 is lighted, the described reflector plate 105-A corresponding with the first LED lamp bar 1031 opens, corresponding with described first LED lamp bar 1031 reflector plate 105-C adjacent for reflector plate 105-A is inclined, the light that described first LED lamp bar 1031 sends is made to be irradiated to the part light reflection through described neighboring reflection sheet 105-C of described reflector plate 105-C, again described first LED lamp bar 1031 location is converged to, then pass through on the region that diffuser plate 102 is irradiated on described liquid crystal panel described first LED lamp bar 1031 correspondence, make the picture quality of display on the region of described first LED lamp bar 1031 correspondence more excellent.
On each described reflector plate 105, the direction parallel with the length direction of described reflector plate 105 is provided with rotating shaft 1051, each described reflector plate 105 has at least a rotating shaft 1051, described rotating shaft 1051 can rotate under the control of described control unit, driving described reflector plate to present different conditions, described different state refers to unlatching, closes and tilts three kinds of states. Each described rotating shaft 1051 is connected to a drive motor, or all rotating shafts 1051 are connected to a drive motor; Described drive motor is connected with described control unit, and under the control of described control unit, described drive motor drives corresponding rotating shaft to rotate.
Such as, as shown in Figure 6, described reflector plate 105 only has a rotating shaft 1051, the dead in line of described rotating shaft 1051 place straight line and corresponding reflector plate 105, the length direction of the parallel described reflector plate 105 of described axis, when described reflector plate 105 is opened, it is misaligned with LED lamp bar projection on described backboard 101 that the plane that the length direction of described reflector plate 105 and width are constituted is perpendicular to the projection on described backboard 101 of described backboard 101 and described reflector plate 105, described projection misaligned both included projection completely misaligned, include again projection section misaligned, the rotating shaft 1051 of each described reflector plate 105 correspondence can connect a drive motor, when on described backlight, the first LED lamp bar 1031 is lighted, with the reflector plate 105-A drive motor being connected, reflector plate 105-A is opened, make described reflector plate 105-C inclined with the described reflector plate 105-C drive motor being connected, with the described reflector plate 105-B drive motor being connected, reflector plate 105-B is closed, described reflector plate 105-B is other reflector plates in reflector plate 105 except described 105-A and reflector plate 105-C.
Or all rotating shafts can pass through a drive motor and drive, during original state, administrative unit arranges an initial phase for each described reflector plate 105, when described drive motor is operated, the speed that the speed LED lamp bar 103 described with on backlight 104 that described reflector plate 105 is opened is lighted is consistent, and when on described backlight, the first LED lamp bar 1031 is lighted, drive motor makes reflector plate 105-A open, reflector plate 105-C is inclined, reflector plate 105-B closes, described reflector plate 105-B is other reflector plates in reflector plate 105 except described 105-A and reflector plate 105-B.
In actual applications, when on described backlight, the first LED lamp bar 1031 is lighted, reflector plate 105-A corresponding with described first LED lamp bar in reflector plate 105 opens, in described reflector plate 105, other reflector plates except described reflector plate 105-A all can be at heeling condition, the part that described first LED lamp bar 1031 sends is made to be irradiated to the light on the reflection bar of described heeling condition, after the reflector plate of each described heeling condition reflects, can again through the guiding of described reflector plate 105-A, after described diffuser plate 102, on the region being irradiated on described liquid crystal panel described first LED lamp bar 1031 correspondence, improve light source utilization rate.
Further, as shown in Figure 7, each described reflector plate 105 only has a rotating shaft 1051, described rotating shaft 1051 place straight line overlaps with a limit of the length direction of corresponding reflector plate 105, when described reflector plate 105 is opened, it is misaligned with LED lamp bar projection on described backboard 101 that the plane that the length direction of described reflector plate 105 and width are constituted is perpendicular to the projection on described backboard 101 of described backboard 101 and described reflector plate 105, described projection misaligned both included projection completely misaligned, include again projection section misaligned, the rotating shaft 1051 of each described reflector plate 105 correspondence can connect a drive motor, each described drive motor makes when on described backlight, the first LED lamp bar 1031 is lighted, with the reflector plate 105-A drive motor being connected, reflector plate 105-A is opened, make described reflector plate 105-C inclined with the described reflector plate 105-C drive motor being connected, with the described reflector plate 105-B drive motor being connected, reflector plate 105-B is closed, described reflector plate 105-B is other reflector plates in reflector plate 105 except described 105-A and reflector plate 105-C.
Or all rotating shafts can be driven by a drive motor, during original state, administrative unit arranges an initial phase for each described reflector plate 105, when described drive motor is operated, the speed that the speed LED lamp bar 103 described with on backlight 104 that described reflector plate 105 is opened is lighted is consistent, and when on described backlight, the first LED lamp bar 1031 is lighted, drive motor makes reflector plate 105-A open, reflector plate 105-C is inclined, reflector plate 105-B closes, described reflector plate 105-B is other reflector plates in reflector plate 105 except described 105-A and reflector plate 105-C.
Further, as shown in Figure 8, described reflector plate 105 can have two rotating shafts, respectively rotating shaft 1052 and rotating shaft 1053, described rotating shaft 1052 place straight line overlaps with a limit of the length direction of corresponding reflector plate 105, and described rotating shaft 1053 place straight line overlaps with another limit of the length direction of corresponding reflector plate 105. when described reflector plate 105 is opened, it is misaligned with LED lamp bar projection on described backboard 101 that the plane that the length direction of described reflector plate 105 and width are constituted is perpendicular to the projection on described backboard 101 of described backboard 101 and described reflector plate 105, the rotating shaft 1052 of each described reflector plate 105 correspondence and rotating shaft 1053 respectively connect a drive motor, each described drive motor makes when on described backlight 104, the first LED lamp bar 1031 is lighted, the reflector plate 105-A of described first LED lamp bar 1031 correspondence opens, inclined with described reflector plate 105-C adjacent for reflector plate 105-A, reflector plate 105-B closes, described reflector plate 105-B is other reflector plates in reflector plate 105 except described 105-A and reflector plate 105-C.
Or all rotating shafts 1052 connect a drive motor, all rotating shafts 1053 connect a drive motor, during original state, administrative unit arranges an initial phase for each described reflector plate 105, when said two drive motor is operated, the speed that the speed LED lamp bar 103 described with on backlight 104 that described reflector plate 105 is opened is lighted is consistent, and when on described backlight, the first LED lamp bar 1031 is lighted, drive motor and the drive motor of all rotating shafts 1053 connection that all rotating shafts 1052 connect make reflector plate 105-A open, reflector plate 105-C is inclined, reflector plate 105-B closes, described reflector plate 105-B is other reflector plates in reflector plate 105 except described 105-A and reflector plate 105-C.
It should be noted that each described reflector plate at the thickness near described axis place more than the thickness away from described axis place, as it is shown in figure 9, be the profile of reflector plate 70 shown in figure, in figure, W show the axis place plane of reflector plate 70. A shown in figure is the reflector plate 70 thickness near axis place, and b is the reflector plate 70 thickness away from axis place, and namely a is more than b. Thus, described reflector plate 70 is when being perpendicular to backboard, light that LED lamp bar sends can be guided after diffuser plate, on the region that to be irradiated on liquid crystal panel described LED lamp bar corresponding, and make the projection on described diffuser plate of the described reflector plate 70 minimum, do not affect the image in described region on liquid crystal panel and show.
The backlight module that the embodiment of the present invention provides, when liquid crystal panel carries out 3D rendering display, backlight module realizes the display of the left and right view on liquid crystal panel by backlight with the synchronous scanning of view data in liquid crystal panel, wherein, the reflector plate in backlight module greatly reduces the first LED lamp bar and is irradiated to the light in other regions except the region of liquid crystal panel corresponding to described first LED lamp bar;The light that described first LED lamp bar sends is irradiated to the part light of the adjacent reflector plate of reflector plate corresponding to described first LED lamp bar, reflection through described neighboring reflection sheet, again converge to described first LED lamp bar location, then pass through on the diffuser plate region that to be irradiated on described liquid crystal panel described first LED lamp bar corresponding. Because during liquid crystal panel display 3D rendering, it it is continuous interlaced display left and right view, when described backlight module makes described liquid crystal panel show a view, the image in the region that described first LED lamp bar is corresponding can clearly show, the image in other regions remaining another viewdata shows almost without method, thus decreasing left and right view crosstalk, and make the picture quality shown more excellent simultaneously.
The embodiment of the present invention provides a kind of display device 6, as shown in Figure 10, and including:
Backlight module 61 described in any one embodiment of the present invention, including backboard 601, diffuser plate 602, described backboard arranges at least one LED lamp bar 603, described backboard 601 and at least one LED lamp bar 603 described form backlight 604, described backlight module 61 also includes at least one reflector plate 605 and control unit (Figure 10 does not indicate); And liquid crystal panel 62.
The image that described backlight module 61 is realized on liquid crystal panel 62 by described backlight 604 and the synchronous scanning of view data in liquid crystal panel 62 shows, namely when the first LED lamp bar 6031 of backlight 604 is lighted, liquid crystal panel 62 shows the image in the region of this LED lamp bar 6031 correspondence, after this row image has shown, and then next LED lamp bar is lighted, then liquid crystal panel 62 shows the image in region corresponding to next LED lamp bar, by that analogy, until a two field picture is by complete display, then show next frame image by same method. described reflector plate 605 makes the light that described first LED lamp bar 6031 sends can not be irradiated to other regions except the region of the liquid crystal panel 62 of described first LED lamp bar 6031 correspondence, and the light that sends of described first LED lamp bar 6031 is irradiated to the part light reflection through described neighboring reflection sheet 605 of the adjacent reflector plate 605 of the reflector plate 605 of described first LED lamp bar 6031 correspondence, again described first LED lamp bar 6031 location is converged to, then pass through on the region that diffuser plate 602 is irradiated on described liquid crystal panel described first LED lamp bar 6031 correspondence, make while reducing crosstalk, image display effect is more excellent.
The display device that the embodiment of the present invention provides, when liquid crystal panel carries out 3D rendering display, backlight module realizes the display of the left and right view on liquid crystal panel by backlight with the synchronous scanning of view data in liquid crystal panel, wherein, the reflector plate in backlight module greatly reduces the first LED lamp bar and is irradiated to the light in other regions except the region of liquid crystal panel corresponding to described first LED lamp bar; The light that described first LED lamp bar sends is irradiated to the part light of the adjacent reflector plate of reflector plate corresponding to described first LED lamp bar, reflection through described neighboring reflection sheet, again converge to described first LED lamp bar location, then pass through on the diffuser plate region that to be irradiated on described liquid crystal panel described first LED lamp bar corresponding. Because during liquid crystal panel display 3D rendering, it it is continuous interlaced display left and right view, when described backlight module makes described liquid crystal panel show a view, the image in the region that described first LED lamp bar is corresponding can clearly show, the image in other regions remaining another viewdata shows almost without method, thus decreasing left and right view crosstalk, and make the picture quality shown more excellent simultaneously.
The embodiment of the present invention provides a kind of backlight module using method, and described backlight module includes the backlight module that any embodiment of the present invention provides, as it can be seen, include:
When the first LED lamp bar is lighted, control the unlatching of the reflector plate corresponding with described first LED lamp bar, make the reflector plate that the light that described first LED lamp bar sends can pass through to open be directed through described diffuser plate after, the region that to be irradiated on liquid crystal panel described first LED lamp bar corresponding;
Extinguish in the first LED lamp bar, when second LED lamp bar adjacent with the first LED lamp bar is lighted, the described reflector plate corresponding with the first LED lamp bar cuts out or is in heeling condition, the described reflector plate corresponding with the second LED lamp bar is opened, make the reflector plate that the light that described second LED lamp bar sends can pass through to open be directed through described diffuser plate after, the region that to be irradiated on liquid crystal panel described second LED lamp bar corresponding.
It is equal that the rate of scanning of described backlight carries out the rate of scanning that image shows with described liquid crystal panel, and it is identical that the scanning direction of described backlight carries out the scanning direction that image shows with described liquid crystal panel.
The display device that the embodiment of the present invention provides, when liquid crystal panel carries out 3D rendering display, backlight module realizes the display of the left and right view on liquid crystal panel by backlight with the synchronous scanning of view data in liquid crystal panel, wherein, the reflector plate in backlight module greatly reduces the first LED lamp bar and is irradiated to the light in other regions except the region of liquid crystal panel corresponding to described first LED lamp bar; The light that described first LED lamp bar sends is irradiated to the part light of the adjacent reflector plate of reflector plate corresponding to described first LED lamp bar, reflection through described neighboring reflection sheet, again converge to described first LED lamp bar location, then pass through on the diffuser plate region that to be irradiated on described liquid crystal panel described first LED lamp bar corresponding. Because during liquid crystal panel display 3D rendering, it it is continuous interlaced display left and right view, when described backlight module makes described liquid crystal panel show a view, the image in the region that described first LED lamp bar is corresponding can clearly show, the image in other regions remaining another viewdata shows almost without method, thus decreasing left and right view crosstalk, and make the picture quality shown more excellent simultaneously.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention. Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (9)
1. a backlight module, described backlight module includes backboard, diffuser plate, and described backboard arranges at least two LED lamp bar, it is characterised in that described backlight module also includes:
At least two reflector plate, described reflector plate is between backlight and described diffuser plate;
Control unit, for when the first LED lamp bar is lighted, control the unlatching of the reflector plate corresponding with described first LED lamp bar, make the reflector plate that the light that described first LED lamp bar sends can pass through to open be directed through described diffuser plate after, the region that to be irradiated on liquid crystal panel described first LED lamp bar corresponding; When the first LED lamp bar is lighted, control other reflector plates to close, the pent reflector plate of light that first LED lamp bar sends is stopped, other regions outside the region that cannot to be irradiated on liquid crystal panel described first LED lamp bar corresponding, other reflector plates described are the reflector plate in described at least two reflector plate except the reflector plate corresponding with described first LED lamp bar.
2. backlight module according to claim 1, it is characterised in that described control unit is additionally operable to:
When the first LED lamp bar is lighted, the reflector plate controlling the reflector plate corresponding with described first LED lamp bar adjacent is inclined, make the guiding by inclined reflector plate of light that described first LED lamp bar sends, the region that to be irradiated on described diffuser plate described first LED lamp bar corresponding.
3. backlight module according to claim 2, it is characterised in that the length direction of each described reflector plate is parallel with the length direction of described LED lamp bar, the width of each described reflector plate is parallel with the width of described LED lamp bar;
The length direction of the reflector plate of described unlatching is vertical with described backboard place plane with the plane that width is constituted;
The length direction of the reflector plate of described closedown is parallel with described backboard place plane with the plane that width is constituted;
The plane that the length direction of described inclined reflector plate and width are constituted is predetermined angle with described backboard place plane.
4. backlight module according to claim 3, it is characterised in that
On each described reflector plate, the direction parallel with the length direction of described reflector plate is provided with rotating shaft, and described rotating shaft can rotate under the control of described control unit, drives described reflector plate to present different conditions.
5. backlight module according to claim 4, it is characterised in that
The dead in line of each described rotating shaft place straight line and corresponding reflector plate, the length direction of the parallel described reflector plate of described axis.
6. backlight module according to claim 5, it is characterised in that
Each described reflector plate thickness at close described axis place is more than the thickness away from described axis place.
7. backlight module according to claim 4, it is characterised in that
Each described rotating shaft is connected to a drive motor, or all rotating shafts are connected to a drive motor;
Described drive motor is connected with described control unit, and under the control of described control unit, described drive motor drives corresponding rotating shaft to rotate.
8. a display device, it is characterised in that including:
Backlight module described in claim 1 to 7 any one claim;
And liquid crystal panel.
9. a backlight module using method, it is characterised in that including:
When the first LED lamp bar is lighted, control the unlatching of the reflector plate corresponding with described first LED lamp bar, make the reflector plate that the light that described first LED lamp bar sends can pass through to open be directed through diffuser plate after, the region that to be irradiated on liquid crystal panel described first LED lamp bar corresponding; Control other reflector plates to close, the pent reflector plate of light that first LED lamp bar sends is stopped, other regions outside the region that cannot to be irradiated on liquid crystal panel described first LED lamp bar corresponding, other reflector plates described are the reflector plate at least two reflector plate except the reflector plate corresponding with described first LED lamp bar;
Extinguish in the first LED lamp bar, when second LED lamp bar adjacent with the first LED lamp bar is lighted, the described reflector plate corresponding with the first LED lamp bar cuts out or is in heeling condition, the described reflector plate corresponding with the second LED lamp bar is opened, make the reflector plate that the light that described second LED lamp bar sends can pass through to open be directed through diffuser plate after, the region that to be irradiated on liquid crystal panel described second LED lamp bar corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310503838.8A CN103499058B (en) | 2013-10-23 | 2013-10-23 | A kind of backlight module, display device and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310503838.8A CN103499058B (en) | 2013-10-23 | 2013-10-23 | A kind of backlight module, display device and using method thereof |
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| Publication Number | Publication Date |
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| CN103499058A CN103499058A (en) | 2014-01-08 |
| CN103499058B true CN103499058B (en) | 2016-06-15 |
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| CN201310503838.8A Expired - Fee Related CN103499058B (en) | 2013-10-23 | 2013-10-23 | A kind of backlight module, display device and using method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109429059A (en) * | 2017-06-28 | 2019-03-05 | 上海与德科技有限公司 | A kind of naked eye 3D display screen and display device |
| CN109429058A (en) * | 2017-06-28 | 2019-03-05 | 上海与德科技有限公司 | A kind of display screen and display device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100976623B1 (en) * | 2006-09-08 | 2010-08-18 | 주식회사 엘지화학 | Mirror effect liquid crystal display device using reflection polarizer |
| KR101632317B1 (en) * | 2010-02-04 | 2016-06-22 | 삼성전자주식회사 | 2D/3D switchable image display apparatus |
| KR101255711B1 (en) * | 2010-07-02 | 2013-04-17 | 엘지디스플레이 주식회사 | 3d image display device and driving method thereof |
| KR101777121B1 (en) * | 2010-07-28 | 2017-09-12 | 엘지디스플레이 주식회사 | Stereoscopic Image Display Device |
| WO2012144471A1 (en) * | 2011-04-22 | 2012-10-26 | シャープ株式会社 | Display device and control method thereof |
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