CN103118267A - Display system capable of automatically adjusting display visual angles of three-dimensional images - Google Patents
Display system capable of automatically adjusting display visual angles of three-dimensional images Download PDFInfo
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- CN103118267A CN103118267A CN201310028688XA CN201310028688A CN103118267A CN 103118267 A CN103118267 A CN 103118267A CN 201310028688X A CN201310028688X A CN 201310028688XA CN 201310028688 A CN201310028688 A CN 201310028688A CN 103118267 A CN103118267 A CN 103118267A
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Abstract
The invention relates to a display system capable of automatically adjusting display visual angles of three-dimensional images. The display system comprises an image pickup device, a display and a control device. The image pickup device picks up images of face positions and face numbers of audiences, the control device receives the images picked up by the image pickup device, calculates perpendicular offset angles of audience faces relative to a display panel center of the display and the number of audiences, acquires required display visual angles of the three-dimensional images for every audience in different numbers of the audiences, and synchronously adjusts a display panel and a backlight source of the display so as to form three-dimensional images meeting different display visual angles. The pixel of the display panel is provided with multiple sections of controllable display areas. After display areas of the multiple sections of the display areas are changed, original luminance of the display system can be kept by the aid of luminance compensation of the backlight source, and accordingly, viewing comfort of the audiences can be increased.
Description
Technical field
The invention relates to a kind of display system of automatic adjustment 3-dimensional image display view angle, refer in particular to and a kind ofly can automatically adjust diaphragm type polarization (Film-type Patterned Retarder; FPR) display system of the required vertical display view angle of three dimensional display image by reducing vertical direction image crosstalk phenomenon (crosstalk), satisfies the comfort level that single spectators or a plurality of spectators watch.
Background technology
Existing diaphragm type polarization three dimensional display is comprised of the image data of two groups of different visual angles, and wherein, group image data are corresponding to the left eye visual angle, and another group image data are corresponding to the right eye visual angle.When playing 3-dimensional image, adjust the phase settings of image output by structure of polarized light, make the spectators' that put on specific structure of polarized light glasses left eye only can see image data corresponding to the left eye visual angle, and right eye only can be seen the image data corresponding to the right eye visual angle, by this, produce stereoscopic vision in spectators' brain.
As shown in Figure 1, for the polarization image that shows that right and left eyes is different, the display floater of present three dimensional display adopts striped formula (stripe) staggered designs patterned retarder 400 usually, the pixel that screen can be showed is divided into odd-numbered line (odd line) and even number line (even line) two of corresponding left and right respectively, for instance, can distribute to left eye as odd-numbered line pixel L1, L2 and L3 in Fig. 1, even number line pixel R1, R2 and R3 can distribute to right eye, thereby form the image data of two groups of different visual angles.
Spectators wear the glasses with specific structure of polarized light again, make the output display image of odd-numbered line pixel have different phase places and be sent to respectively right and left eyes from the output display image of even number line pixel.Thus, spectators just can experience the stereo display effect.
The image data of these two groups of different visual angles that form due to patterned retarder 400 is to adopt the horizontal direction of interlace mode to arrange, therefore, when single spectators' eye position vertically changes with respect to display, or a plurality of spectators are because of height or view and admire angle not simultaneously, can crosstalk between the image data of these two groups of different visual angles, affect the comfort level of spectators' vision and the quality of image of display video picture; Therefore present improvement method as shown in Figure 2, in advance between the corresponding pixel of the image data of these two groups of different visual angles, increase the width of shading region BM between pixel with black dyes or resin, with the reduction situation of crosstalking; The mode of situation but above-mentioned improvement is crosstalked, and can't change shading region BM width size between pixel for the angle of spectators' actual shifts and position, so mode can reduce the brightness of facing display when not needing excessive vertical display view angle, and must increase in advance the brightness of the backlight of display, make the display rated disspation increase.
Therefore, need a kind of display system that can automatically adjust the 3-dimensional image display view angle, enable automatically to adjust for the actual required display view angle of spectators, and synchronously backlight is adjusted compensate for brightness, to improve the problems referred to above.
Summary of the invention
One of purpose of the present invention is the display system that is to provide a kind of automatic adjustment 3-dimensional image display view angle, can automatically adjust the required vertical display view angle of three dimensional display image, reduce vertical direction image crosstalk phenomenon, and synchronously backlight is adjusted compensate for brightness.
For achieving the above object, the display system of automatic adjustment 3-dimensional image display view angle of the present invention comprises image capture unit, and its acquisition comprises the image of spectators' face location and face's quantity; Display comprises: display floater, the pixel of display floater have the multistage viewing area, and this display floater comprises driver module, to drive the voltage of this multistage viewing area, make this multistage viewing area for regulating and controlling; And backlight, it comprises the backlight drive module, to drive the voltage of this backlight, makes the brightness of this backlight for regulating and controlling; And control device, couple with this image capture unit and this display respectively, this control device comprises: signal processing module, after receiving this image that this image capture unit captures, calculate spectators face with respect to angle and the spectator attendance of this display floater central vertical skew, and be converted to the first electronic signal and the second electronic signal; And signal output module, export respectively this first electronic signal to this driver module of this display floater, and export this second electronic signal to this backlight drive module of this backlight; Wherein, this driver module regulates and controls this multistage viewing area of this display floater according to this first electronic signal, make the vertical display view angle of the 3-dimensional image of this display floater generation, meet required this different vertical display view angle under different spectators' face location and spectator attendance; And this backlight drive module is synchronously adjusted the brightness that increases this backlight according to this second electronic signal, to compensate this display system because the brightness that this multistage viewing area change causes changes, makes this display system keep original brightness.
As optional technical scheme: this image capture unit comprises video camera.
As optional technical scheme: this image capture unit comprises Angle Measurement Module, to obtain spectators face with respect to the angle information of this display floater central vertical skew.
As optional technical scheme: the display floater of this display is liquid crystal panel or organic luminous panel.
As optional technical scheme: this display floater comprises the 3-dimensional image display module of patterned retarder.
As optional technical scheme: control switch is distinguished by voltage in this multistage viewing area of this pixel, forms lightproof area or keeps the viewing area and switch.
As optional technical scheme: the regulation and control degree of this multistage viewing area of this pixel is according to following formula: D=d * tan θ
1And a=A-D, wherein, D is the length of this lightproof area, d is that this patterned retarder of correspondence is to the distance of this pixel, θ
1Be the spectators face angle with respect to this display floater central vertical skew, the length of this multistage viewing area of A before for a change, the length of this multistage viewing area of a after for a change.
As optional technical scheme: the brightness of this multistage viewing area after this backlight separate compensation of this display changes.
As optional technical scheme: this backlight comprises a plurality of light-emitting diodes.
As optional technical scheme: these a plurality of light-emitting diodes are that matrix is arranged, and change the respectively voltage of this light-emitting diode by this driver module receives this second electronic signal, make the brightness of this light-emitting diode respectively for regulating and controlling.
Compared with prior art, the display system of automatic adjustment 3-dimensional image display view angle of the present invention can be adjusted the required vertical display view angle of three dimensional display image automatically, by reducing vertical direction image crosstalk phenomenon (crosstalk), and synchronously backlight is adjusted compensate for brightness, make the brightness that still can keep when originally watching this display system, satisfy the comfort level that single spectators or a plurality of spectators watch.
Description of drawings
Fig. 1 is the schematic diagram of known striped formula staggered designs patterned retarder pattern.
Fig. 2 is the schematic diagram that known increase lightproof area is crosstalked to improve 3-dimensional image.
Fig. 3 is the Organization Chart that the present invention adjusts the display system of 3-dimensional image display view angle automatically.
Fig. 4 is in a preferred embodiment of the present invention, controls respectively the schematic diagram of the mode of multistage viewing area switch with voltage.
Fig. 5 is the end view that illustrates pixel.
Fig. 5-1 to Fig. 5-3 under different spectators' face location and spectator attendance, are improved the schematic diagram of the mode of crosstalk phenomenon in preferred embodiment of the present invention.
Fig. 6 is in a preferred embodiment of the present invention, and multistage viewing area and lightproof area change the schematic diagram of the computing formula of degree.
Fig. 7 is the flow chart of a preferred embodiment of the present invention.
Embodiment
For making, purpose of the present invention, structure, feature and function thereof there are further understanding, hereby coordinate embodiment to be described in detail as follows.
Please refer to Fig. 3 and Fig. 4, Fig. 3 is the Organization Chart of the display system of automatic adjustment 3-dimensional image display view angle of the present invention, one of purpose of the present invention is the display system 200 that is to provide a kind of automatic adjustment 3-dimensional image display view angle, and display system 200 comprises image capture unit 2, display 1 and control device 3.Image capture unit 2 is used for the image that acquisition comprises spectators' face location and face's quantity.Display 1, comprise display floater 100 and backlight 10, the pixel 5 of display floater 100 has multistage viewing area 51, and display floater 100 comprises driver module 101, to drive the individual voltages of multistage viewing area 51, make multistage viewing area 51 for regulating and controlling.Backlight 10 comprises backlight drive module 11, and backlight drive module 11 drives the voltage of backlight 10, makes the brightness of backlight 10 for regulating and controlling.Control device 3 couples with image capture unit 2 and display 1 respectively, and control device 3 has signal processing module 31 and signal output module 32.After signal processing module 31 receives the image that image capture units 2 capture, calculate spectators face with respect to angle and the spectator attendance of display floater 100 central vertical skews, and be converted into the first electronic signal and the second electronic signal; Signal output module 32 is exported respectively the first electronic signal to the driver module 101 of display floater 100, and exports the second electronic signal to the backlight drive module 11 of backlight 10.
Wherein, driver module 101 regulates and controls the multistage viewing area 51 of this display floater 100 according to the first electronic signal, make the vertical display view angle of the 3-dimensional image that display floater 100 produces, meet required different vertical display view angle under different spectators' face location and this spectator attendance; And this backlight drive module 11 is synchronously adjusted the brightness that increases backlight 10 according to the second electronic signal, to compensate this display system 200 because the brightness that the change of multistage viewing area 51 causes changes, makes display system 200 keep original brightness.
In one embodiment of this invention, image capture unit 2 comprises video camera, and fechtable dynamically or tableaux and saves as digitized video, processes with the signal processing module 31 that offers subsequent control device 3.
In another embodiment of the present invention, image capture unit 2 comprises Angle Measurement Module 21, and it can directly obtain spectators face with respect to the angle information of display floater central vertical skew, and the signal processing module 31 that is sent to control device 3 carries out computing.
In another embodiment of the present invention, the display floater 100 of display 1 can be the display floater that liquid crystal panel or organic luminous panel etc. have picture element matrix.
In another embodiment of the present invention, the display floater 100 of display 1 is the 3-dimensional image display module that comprises patterned retarder 400.
Please refer to Fig. 4, in another embodiment of the present invention, control switch can be distinguished by voltage in the multistage viewing area 51 of each pixel 5 of display floater 100, form lightproof area 53 or keep the viewing area and switch, when the lightproof area 53 that forms was switched in multistage viewing area 51, the effect of lightproof area 53 was identical with the shading region BM of 5 of script pixels; Please refer to Fig. 5, when vertical viewing angle not excessive, for example when face location C is parallel when watching display 1, multistage viewing area 51 is bright attitude and keeps the printing opacity degree of pixel 5 originally, the right and left eyes image can be respectively arrives left eye and right eye by the left vision district L of patterned retarder 400 and right vision district R, and can not crosstalk; But it is excessive to work as vertical viewing angle, for example when face location A has angle with the parallel position of watching display 1, the interval region that pixel is 5 is not enough to cover fully the image of two groups of different visual angles of right and left eyes, as shown in Figure 5, when the right and left eyes image arrives left eye by left vision district L simultaneously, can crosstalk, cause quality of image decline and spectators uncomfortable, just need to increase lightproof area 53 this moment, to improve this phenomenon by increasing the vertical direction visible angle.
Please refer to Fig. 5-1 to Fig. 5-3, Fig. 5-1 to Fig. 5-3 are under different spectators' face location and spectator attendance, improve the schematic diagram of the mode of crosstalk phenomenon, when spectators' face location is offset the center of display 1, as Fig. 5-1 and spectators' face location A or B as shown in Fig. 5-2, the corresponding lightproof area 53 of the synchronous increase of pixel 5 of display floater 100 makes image accurately arrive respectively left eye and right eye by left vision district L and the right vision district R of this patterned retarder 400, does not crosstalk and do not produce; As shown in Fig. 5-3, when spectators all are offset the center of display 1 for a plurality of and angle face location, after spectators' face location by detecting skew maximum angle, for example face location A and face location B are respectively according to the peak excursion angle θ of face location A and face location B
1With θ
2Increase the corresponding lightproof area 53a of each pixel 5 and lightproof area 53b, make the visual angle of display floater 100 contain θ
1With θ
2A plurality of spectators' use in scope, and do not produce crosstalk phenomenon.
Referring again to Fig. 6, Fig. 6 is the multistage viewing area of pixel and the schematic diagram that lightproof area changes the computing formula of degree, multistage viewing area 52 its regulation and control degree foundation following formula: the D=d * tan θ after lightproof area 53 and change
1And a=A-D, wherein, D is the length of lightproof area 53, d is that corresponding patterned retarder 400 is to the distance of this pixel, θ
1Be the deviation angle of spectators' face location A with respect to display floater 100 central vertical, the length of the multistage viewing area 51 of A before for a change, the length of the multistage viewing area 52 of a after for a change; And θ
1Measurement, for example can obtain the angle that spectators' face location is offset by the Angle Measurement Module 21 of image capture unit 2, calculate via above-mentioned formula again and can obtain spectators' face location required visual angle, and the length of the length of the multistage viewing area after changing 52 and the lightproof area 53 that needs to increase.
Please refer to Fig. 5-1, in another embodiment of the present invention, but the brightness of the multistage viewing area 52 after backlight 10 separate compensations of display 1 change.Multistage viewing area 52 after change reduces because of the increase light transmittance of lightproof area 53.
In another embodiment of the present invention, wherein backlight 10 comprises point source of light, for example can be a plurality of light-emitting diodes, in order to provide than regional area adjusting backlight; Wherein, a plurality of light-emitting diodes are that matrix is arranged, and can change the voltage of indivedual light-emitting diodes by this driver module 101 receives this second electronic signal, make the brightness of indivedual light-emitting diodes be all and can regulate and control.
See also Fig. 7, Fig. 7 is the flow chart of display system one preferred embodiment of the present invention.At first, by image capture unit 2, acquisition comprises the image (step S1) of spectators' face location and face's quantity; After transferring to the signal processing module 31 of control device 3, calculate spectators face with respect to angle and the spectator attendance (step S2) of display floater 100 central vertical skews;
If single spectators are only arranged, after the spectators face deviation angle information that calculates of the signal output module 32 readable signal processing modules 31 of control device 3 (step S3), export respectively the first electronic signal to the driver module 101 of display floater 100, individual voltages with the multistage viewing area 51 of regulation and control display floater 100, according to the angle adjustment lightproof area 53 of spectators face skew, and change the 3D visual angle (step S4) of display floater 100; With the backlight drive module 11 of the second electronic signal to backlight 10, backlight drive module 11 is synchronously adjusted the brightness that increases backlight 10 according to the second electronic signal, because the brightness that the change of multistage viewing area 51 forms changes, make display system 200 keep original brightness (step S7) with compensation display system 200; And then return back to step S1 acquisition spectators image, and whether change with quantity or the position that continues the detecting spectators, make display system 200 be able to automatically adjust at any time the three-dimensional display visual angle;
When if a plurality of spectators are arranged, after the angle information of all spectators face skew that calculates of the signal output module 32 readable signal processing modules 31 of control device 3 (step S5), export respectively the first electronic signal to this driver module 101 of display floater 100, individual voltages with the multistage viewing area 51 of regulation and control display floater 100, according in a plurality of spectators face, the angle adjustment lightproof area 53 of spectators face peak excursion, and the 3D visual angle (step S6) of change display floater 100 makes a plurality of spectators interior between the angular field of view coverage area; With the backlight drive module 11 of the second electronic signal to backlight 10, backlight drive module 11 is synchronously adjusted the brightness that increases backlight 10 according to the second electronic signal, because the brightness that the change of multistage viewing area 51 causes changes, make display system 200 keep original brightness (step S7) with compensation display system 200; And then return back to step S1 acquisition spectators image, and whether change to continue detecting spectator attendance or position, make display system 200 be able to automatically adjust at any time the three-dimensional display visual angle.
The present invention is described by above-mentioned related embodiment, yet above-described embodiment is only for implementing example of the present invention.Must be pointed out that, the embodiment that has disclosed does not limit the scope of the invention.On the contrary, the change of doing without departing from the spirit and scope of the present invention and retouching all belong to scope of patent protection of the present invention.
Claims (10)
1. display system of automatically adjusting the 3-dimensional image display view angle is characterized in that comprising:
Image capture unit, its acquisition comprises the image of spectators' face location and face's quantity;
Display comprises:
Display floater, the pixel of this display floater have the multistage viewing area, and this display floater comprises driver module, to drive the voltage of this multistage viewing area, make this multistage viewing area for regulating and controlling; And
Backlight, it comprises the backlight drive module, to drive the voltage of this backlight, makes the brightness of this backlight for regulating and controlling; And
Control device couples with this image capture unit and this display respectively, and this control device comprises:
Signal processing module after receiving this image that this image capture unit captures, calculates spectators face with respect to angle and the spectator attendance of this display floater central vertical skew, and is converted to the first electronic signal and the second electronic signal; And
Signal output module is exported respectively this first electronic signal to this driver module of this display floater, and exports this second electronic signal to this backlight drive module of this backlight;
Wherein, this driver module regulates and controls this multistage viewing area of this display floater according to this first electronic signal, make the vertical display view angle of the 3-dimensional image of this display floater generation, meet this different vertical display view angle required under different spectators' face location and spectator attendance; And this backlight drive module is synchronously adjusted the brightness that increases this backlight according to this second electronic signal, to compensate this display system because the brightness that this multistage viewing area change causes changes, makes this display system keep original brightness.
2. display system as claimed in claim 1, it is characterized in that: this image capture unit comprises video camera.
3. display system as claimed in claim 1, it is characterized in that: this image capture unit comprises Angle Measurement Module, to obtain spectators face with respect to the angle information of this display floater central vertical skew.
4. display system as claimed in claim 1, it is characterized in that: the display floater of this display is liquid crystal panel or organic luminous panel.
5. display system as claimed in claim 1, it is characterized in that: this display floater comprises the 3-dimensional image display module of patterned retarder.
6. display system as claimed in claim 5 is characterized in that: control switch is distinguished by voltage in this multistage viewing area of this pixel, forms lightproof area or keeps the viewing area and switch.
7. display system as claimed in claim 6 is characterized in that: the regulation and control degree of this multistage viewing area of this pixel is according to following formula: D=d * tan θ
1And a=A-D, wherein, D is the length of this lightproof area, d is that this patterned retarder of correspondence is to the distance of this pixel, θ
1Be the spectators face angle with respect to this display floater central vertical skew, the length of this multistage viewing area of A before for a change, the length of this multistage viewing area of a after for a change.
8. display system as claimed in claim 1 is characterized in that: the brightness of this multistage viewing area after this backlight separate compensation of this display changes.
9. display system as claimed in claim 8, it is characterized in that: this backlight comprises a plurality of light-emitting diodes.
10. display system as claimed in claim 9, it is characterized in that: these a plurality of light-emitting diodes are that matrix is arranged, and change the respectively voltage of this light-emitting diode by this driver module receives this second electronic signal, make the brightness of this light-emitting diode respectively for regulating and controlling.
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