CN114173108A - Control method and device of 3D display panel, computer equipment and storage medium - Google Patents
Control method and device of 3D display panel, computer equipment and storage medium Download PDFInfo
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Abstract
The invention discloses a control method and device of a 3D display panel, computer equipment and a storage medium. The control method of one embodiment comprises the following steps: acquiring the corresponding relation between the brightness of a first view corresponding to a preset viewpoint and a preset human eye rotation angle when a 3D display panel is in a display state; determining the eye movement angle adjusted by each grating and the eye movement distance actually adjusted by each grating according to the corresponding relation; and controlling the power-on states of the plurality of gratings according to the human eye movement angle. The method of the embodiment of the invention can fully consider the situation that the error exists in the human eye movement angle adjusted by the grating due to the manufacturing process, the process error is made up, the grating is controlled through the actually adjusted human eye movement angle, and the image received by the human eyes is an image with continuously changed brightness value instead of an image with jump, so that the problem that the human eyes are uncomfortable during 3D display can be effectively solved.
Description
Technical Field
The invention relates to the technical field of 3D display. And more particularly, to a method and apparatus for controlling a 3D display panel, a computer device, and a storage medium.
Background
Naked eye 3D technologies are mainly classified into two major categories: the binocular parallax and the original light field are reproduced. The principle of reproducing the binocular parallax is as follows: the left eye and the right eye of a person receive two kinds of views with parallax respectively, and images of the two kinds of views are synthesized in the brain to generate a 3D effect. Thus, the conventional 3D technology can generate a 3D video image by designing a display panel to display an image having parallax and to map the image to the left and right eyes of a human. However, when a user views a 3D display image, the user often feels discomfort to the eyes, which affects the 3D viewing experience.
Disclosure of Invention
An object of the present invention is to provide a method and an apparatus for controlling a 3D display panel, a computer device, and a storage medium, so as to solve at least one of the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a control method of a 3D display panel, which is applied to the 3D display panel with a plurality of gratings;
the method comprises the following steps:
acquiring the corresponding relation between the brightness of a first view corresponding to a preset viewpoint and a preset human eye rotation angle when a 3D display panel is in a display state;
determining the human eye movement angle adjusted by each grating according to the corresponding relation;
and controlling the power-on states of the plurality of gratings according to the human eye movement angle.
Further, the obtaining of the corresponding relationship between the brightness of the first view corresponding to the preset viewpoint and the preset human eye rotation angle when the 3D display panel is in the display state further includes:
taking the central position of the first view at a preset distance from the light-emitting surface of the 3D display panel as a rotation center, and taking the preset distance as a radius, and obtaining brightness curves of the first view corresponding to different rotation angles at the position of a radius end point when the grating is in an initial power-on state;
powering up the plurality of gratings according to a preset power-up sequence to obtain brightness curves of the first view in different power-up states;
and generating a superimposed brightness curve graph by the brightness curves of all the first views, wherein the superimposed brightness curve graph is used as the corresponding relation, and the preset human eye rotation angle is included in the rotation angle.
Further, the number of viewpoints is at least two, and at least one of the viewpoints is the preset viewpoint;
the first view corresponding to the preset viewpoint is a first color;
the second view corresponding to the non-preset viewpoint is a second color.
Further, the abscissa of the superimposed luminance graph is an angle, and the ordinate is luminance;
the superimposing luminance profiles of all the first views to generate superimposed luminance profiles, the superimposed luminance profiles further including as the correspondence;
determining a preset human eye rotation angle according to the brightness curve of the first view;
and superposing the brightness curves of the first view corresponding to the preset human eye rotation angle to obtain the superposed brightness curve graph.
Further, the determining the eye movement angle adjusted by each grating according to the corresponding relationship further includes:
acquiring the position of an adjacent intersection point in a plurality of intersection points formed by a plurality of brightness curves in the superimposed brightness schematic diagram;
and obtaining the human eye movement angle adjusted by each grating according to the position of the adjacent intersection points.
Further, the controlling the power-on states of the plurality of rasters according to the human eye movement angle further includes:
determining a body adjustment distance of the grating based on the human eye movement angle;
and determining the adjustment mode of the optical gratings based on the body adjustment distance, and controlling the power-on states of the optical gratings according to the adjustment mode.
Further, the determining an adjustment mode of the optical grating based on the body adjustment distance and controlling the power-on states of the optical gratings according to the adjustment mode further includes:
judging the size of the body adjusting distance and the process adjusting distance, and if the body adjusting distance is greater than or equal to the process adjusting distance, controlling the plurality of gratings to keep the current power-on state in an adjusting mode; if the body adjusting distance is smaller than the process adjusting distance, the adjusting mode is to control the plurality of gratings to be powered up in the following sequence according to the preset power-up sequence.
A second aspect of the present invention provides a control apparatus for a grating that performs the method of the first aspect of the present invention, the control apparatus comprising:
the corresponding relation determining module is used for acquiring the corresponding relation between the brightness of a first view corresponding to a preset viewpoint and a preset human eye rotation angle when the 3D display panel is in a display state;
the human eye movement angle determining module is used for determining the human eye movement angle adjusted by each grating according to the corresponding relation;
and the grating control module is used for controlling the power-on states of the plurality of gratings according to the human eye movement angle.
A third aspect of the present invention provides a 3D display device comprising: the display device comprises a 2D display panel, a 3D display panel with a plurality of gratings and a control device provided by the second aspect of the invention, wherein the 3D display panel is positioned on the light emitting side of the 2D display panel.
A fourth aspect of the invention provides a computer apparatus comprising a memory, a processor, and a computer program stored on the memory and executable on the control device, the processor implementing the method as provided in the first aspect of the invention when executing the program.
A fifth aspect of the invention provides a 3D display device, a 2D display panel, a 3D display panel with a plurality of gratings at the light exit side of the 2D display panel and a computer apparatus as provided in the fourth aspect of the invention.
A sixth aspect of the invention provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the method as provided in the first aspect of the invention.
The invention has the following beneficial effects:
according to the technical scheme, the condition that the error exists in the eye movement angle adjusted by the grating due to the manufacturing process can be fully considered, the process error is made up, the grating is controlled through the actually adjusted eye movement angle, so that the position of the eye viewpoint is consistent with the opening position of the grating after the grating is powered on when the eye is tracked, the image received by the eye is an image with continuously changed brightness value instead of an image with jumping, and therefore the problem that the eye is uncomfortable during 3D display can be effectively solved.
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The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 illustrates a schematic configuration diagram of a 3D display device to which a control method of an embodiment of the present invention is applied;
FIG. 2 shows an arrangement of 16 gratings in a grating period according to an embodiment of the present invention;
FIG. 3 shows white luminance curves for a first view and a second view corresponding to the same viewpoint of an embodiment of the present invention;
FIG. 4a shows a first view of brightness curves for different power-up states of the same grating according to an embodiment of the present invention;
FIG. 4b is an enlarged schematic view of the dashed area in FIG. 4 a;
FIG. 5 shows a flow chart of a control method of one embodiment of the invention;
FIG. 6 shows a flowchart of step S1 of an embodiment of the present invention;
FIG. 7 illustrates a process of determining a luminance curve of the first view using a luminance meter according to an embodiment of the present invention;
FIG. 8a shows a preset power-up sequence for N gratings according to an embodiment of the present invention;
FIG. 8b shows the power-up state of 6 gratings of an embodiment of the present invention;
FIG. 9 is a flowchart illustrating step S13 according to an embodiment of the present invention;
FIGS. 10a and 10b are schematic diagrams of superimposed luminance curves corresponding to different angles for an embodiment of the present invention;
FIG. 11 shows a flowchart of step S2 of an embodiment of the present invention;
FIG. 12 shows a flowchart of step S3 of an embodiment of the present invention;
FIG. 13 is a view diagram of the eye with respect to the gratings when the position of the viewpoint of the eye changes according to an embodiment of the present invention;
FIG. 14 shows a luminance profile of a first view with a shift in the position of the human eye according to the prior art;
FIG. 15 shows a block schematic of a control device of an embodiment of the invention;
fig. 16 is a schematic structural diagram of a computer device according to another embodiment of the present invention.
Detailed Description
The electronic grating is one of naked eye 3D technical schemes for reproducing binocular parallax, and the technical scheme adopts a 2D display panel and a 3D display panel, such as a TN electronic liquid crystal grating box, to realize 3D display. Fig. 1 shows a schematic structural diagram of a 3D display device applied TO the control method of the embodiment of the present invention, which includes a 2D display panel and a 3D display panel away from a light-emitting side of the 2D display panel by a certain height, wherein the 3D display panel adopts a double-layer grating TO be alternately distributed, and an electric field is generated between a first grating (1TO) and a second grating (2TO) TO drive liquid crystal TO deflect, so as TO control different regions TO transmit light or not transmit light, thereby realizing that left and right eyes respectively receive different views.
The TN electronic grating liquid crystal box is used as the 3D display panel, the free switching between the 2D display and the 3D display can be realized, and the grating of the TN electronic grating liquid crystal box is closed during the 2D display, so that the influence on the 2D display transmittance is small. On the other hand, there are disadvantages in that resolution is reduced, 3D transmittance is reduced, and 3D viewing angle is small.
In order to solve the problem of small 3D viewing angle, the prior art improves the problem by using a human eye recognition and tracking technology. Exemplarily, on the basis that the 3D display panel is arranged on the light emitting side of the 2D display panel, a human eye tracking device is further arranged, which is used for acquiring position information of the current human eye of the viewer in front of the 2D display panel in the 3D display mode in real time, and the control device adjusts the position of the grating opening of the 3D display panel according to the position information, so that the current viewer can view the best 3D image picture.
The 3D viewing angle can be greatly improved by using the eye tracking technology, and in a specific example, for a 3D display device without eye tracking, the monocular 3D viewing angle is only 4 ° (crosstalk is less than 10%). The monocular 3D viewing angle is 46 ° (crosstalk < 10%) for the increased eye tracking device. It can be seen that the eye tracking technology can improve the pain point of the technology with small 3D viewing angle, but the eye tracking technology also brings some problems, such as: the flicker of the picture causes discomfort to human eyes when the human eyes track.
In view of the above phenomenon, the inventors studied the problem of discomfort of human eyes in 3D display. The inventor takes a TN electronic liquid crystal box as a 3D display panel, the number of viewpoints is designed to be 2, the optimal viewing distance S is set to be 34cm, and the interpupillary distance is set to be 65 mm. Fig. 2 shows an arrangement of 16 gratings in one grating period (94.57 μm), where the 3D grating consists of a first grating 1TO and a second grating 2TO alternately, and 16 gratings (8 gratings 1TO +8 and 2TO) are in one grating period (Pitch), and for 16 gratings (ITO), 16 preset power-on sequences for controlling power-on of the gratings may be set, that is, each grating may be controlled by 16 preset power-on sequences (Step) during human eye tracking.
Further, as shown in fig. 3, the inventor has obtained white light luminance graphs of a first View1 and a second View2 displayed on the 3D display panel corresponding to the same viewpoint with the same viewpoint as a reference, wherein an abscissa of the white light luminance graph is a rotation angle and an ordinate thereof is a luminance value. As can be seen from FIG. 3, the luminance curves for the first View View1 can be derived from the white light luminance curves, with the best viewing angles corresponding to the highest luminance values being-20 deg. -1 deg. and 18 deg., respectively, and the luminance curves for the second View View2, with the best viewing angles corresponding to the highest luminance values being-11 deg. -8 deg. and 27 deg., respectively. For the same view, the interval angle between two optimal viewpoints is 19 °, that is, one raster period Pitch of the 3D display panel can be determined at the interval angle of the optimal viewpoints, that is, the precision of the viewpoint interval angle adjusted by each ITO stripe is 1.2 ° (interval angle of the optimal viewpoints/number of raster stripes in raster period, that is, 19/16 ═ 1.2 °).
Then, taking the first View1 as an example, the inventor further plots a curve of brightness change of the first View when the power-on state of one raster strip is changed during the movement of the human eye, to obtain a brightness curve of the first View of the same raster in different power-on states as shown in fig. 4a, and fig. 4b is an enlarged schematic diagram of a dotted line area in fig. 4 a. The abscissa of fig. 4a and 4b is the human eye rotation angle, and the ordinate is the brightness value.
The inventor finds that due to the existence of the attaching alignment deviation of the grating bars in the manufacturing process, the adjusted human eye movement angle is different from the theoretical design angle, and the adjustment precision is reduced. Ideally, when the human eye moves from the point a to the point B, the luminance at the point a and the luminance at the point B are the same and the optimal state is obtained. The worst case in eye tracking is the case shown in fig. 4B, that is, when the eye moves from the point a to the point B, the luminance value directly jumps from the end of the dotted line in the luminance curve 1to the head of the dotted line in the luminance curve 2, and at this time, there is a jump in the luminance value, and the jump value is 7 nits. The jump value is larger as the maximum brightness is higher, and the jump value is likely to be larger under the condition of process fluctuation, so that the image seen by human eyes is a flickering image, and the eye discomfort is caused. Therefore, when the eye tracking technology is used for realizing the display of the corresponding 3D image, the position of the eyes is changed, the opening position of the grating is adjusted to match the position of the eyes, and the brightness of the viewpoint position where the eyes are located jumps to show a flicker phenomenon, which causes discomfort of the eyes and influences the 3D viewing effect.
In view of the above, the inventors have made extensive experiments and research to provide a control method, a control device, a 3D display device, a computer device and a computer readable storage medium for manufacturing the 3D display panel to solve the above problems.
A first embodiment of the present invention provides a method for controlling a 3D display panel, the method being applied to the 3D display panel shown in the figure, the 3D display panel having a plurality of rasters, as shown in fig. 5, the method including:
s1, acquiring the corresponding relation between the brightness of a first view corresponding to a preset viewpoint and a preset human eye rotation angle when the 3D display panel is in a display state;
s2, determining the eye movement angle adjusted by each grating and the eye movement distance actually adjusted by each grating according to the corresponding relation;
and S3, controlling the power-on states of the gratings according to the human eye movement angle. .
Different from the scheme of controlling the power-on state of the grating by using the process ideal parameters in the prior art, the embodiment first obtains the corresponding relation between the brightness of the first view of the preset viewpoint and the preset human eye rotation angle, and the adjusted human eye movement angle in the actual application of the grating determined according to the corresponding relation can fully consider the situation that the human eye movement angle adjusted by the grating has an error due to the manufacturing process, namely, the human eye movement angle adjusted by the grating obtained according to the corresponding relation is the actually adjusted movement angle including the process error, so as to make up the process error, further, the embodiment controls the grating by the actually adjusted human eye movement angle, so that the position of the human eye viewpoint is consistent with the opening position of the grating after being powered on when the human eye is tracked, thereby realizing that the image received by the human eye is an image with continuously changed brightness value, and the jumping image is not existed, therefore, the embodiment can effectively solve the problem that the flicker of the display image causes discomfort of human eyes.
Illustratively, the design parameters of the 3D display panel of the present embodiment are: the optimal viewing distance is S, the distance between the 2D display panel and the 3D display panel is H, the interpupillary distance of human eyes is Y, N ITO (indium tin oxide) bars (N is an even number) are arranged in a group of grating periods of the 3D display panel, and the effective width of each grating is D.
Now, the method of the embodiment of the present invention is described by the 3D display panel with the specific parameters, and the implementation process of the control method is as follows:
and S1, acquiring the corresponding relation between the brightness of the first view corresponding to the preset viewpoint and the preset human eye rotation angle when the 3D display panel is in the display state.
In an alternative embodiment, as shown in fig. 6, step S1 further includes:
s11, taking the center position of the first view at a preset distance from the light-emitting surface of the 3D display panel as a rotation center, and taking the preset distance as a radius, obtaining the brightness curve of the first view corresponding to different rotation angles at the end position of the radius when the grating is in an initial power-on state.
For example, the brightness value may be obtained by using a brightness meter, as shown in fig. 7, the brightness meter is placed at a preset distance, and the lens is aligned with a first view corresponding to a preset viewpoint, for example, the first view is an area where a center of the screen is located.
It should be noted that fig. 7 does not show the 2D display panel in the luminance meter and the 3D display device, that is, the preset distance in the embodiment is the sum of the optimal viewing distance S and the distance H between the 2D display panel and the 3D display panel.
In an alternative embodiment, the number of viewpoints is at least two, at least one of which is the preset viewpoint; the first view corresponding to the preset viewpoint is a first color; the second view corresponding to the non-preset viewpoint is a second color.
The present embodiment is exemplified by taking two viewpoints as an example, and those skilled in the art should make settings according to the actual application. In this embodiment, the first view is set to be the first color, and the second view corresponding to the other non-preset views is set to be the second color, so that the collected brightness value of the first view is prevented from being influenced by the brightness of the second view of the non-preset view point, and the accuracy of the corresponding relationship obtained subsequently is ensured. In a specific example, the first view is set to white and the second view is set to black, and the luminance variation of the first view is more accurate because the gray-scale values of the two colors are respectively the highest and the lowest.
Then, the central position of the first view for collecting the brightness value is taken as a rotation center, the preset distance is taken as a radius to rotate, so that the position of the mobile brightness meter is changed, and the power-on mode of one grating period is selected, so that the brightness of the first view at the radius end position of the grating in the current power-on state, namely the position of the brightness meter, can be obtained and is represented in a brightness curve mode.
And S12, powering up the plurality of rasters according to a preset power-up sequence to obtain the brightness curves of the first view under different power-up states.
As shown in FIG. 8a, N power-up modes of N rasters are shown, for example, the number of rasters is 6, and as shown in FIG. 8b, the switching states of rasters S1 to S6 after power-up control are shown for displaying different pictures T1 to T6. As shown in fig. 8b, when the human eye displays the image T1 on the 3D display panel at the first position, the corresponding raster 1, raster 2, and raster 3 are opened, and when the human eye moves to the second position, the 3D display panel displays the image T2, the corresponding raster 2, raster 3, and raster 4 are opened, and the raster 1, raster 2, and raster 3 are moved in the visual position.
Therefore, for the present embodiment, after each grating is powered according to the whole power-up sequence, the brightness curves of the first view corresponding to different electrical sequences can be obtained. Each brightness curve can identify the brightness change of the first view collected by the brightness meter under the current power-on state.
Fig. 4a shows the brightness curve of the first view obtained by changing the power-on state of the grating once, as shown in fig. 4a, the brightness curve of the first view formed by the initial power-on state is brightness curve 1, and the brightness curve of the first view after changing the power-on state is brightness curve 2.
And S13, overlapping all the brightness curves of the first view to generate an overlapped brightness curve graph, wherein the overlapped brightness curve graph is used as the corresponding relation, and the preset human eye rotation angle is included in the rotation angle.
In an alternative embodiment, as shown in fig. 9, step S13 further includes;
s131, determining a preset human eye rotation angle according to the brightness curve of the first view;
in this embodiment, the process of the luminance meter test is a process of simulating a change of a viewpoint, and when the position of the luminance meter changes with the rotation angle, that is, the position of the viewpoint of the human eye also changes, that is, the rotation angle may also be a rotation angle of the human eye.
Taking the luminance curve of the first view shown in fig. 3 as an example, the rotation angle range is (-80 ° to 80 °), and the corresponding angle intervals at the three peaks where the luminance is high are [ -30 °, -10 ° ], [ -10 °,10 ° ] and [10 °,30 ° ], respectively. In order to improve the accuracy of the superimposed luminance graph, the luminance curves in the angle interval of [ -10 °,10 ° ] corresponding to the highest luminance value are superimposed, that is, the preset eye rotation angle of the present embodiment is [ -10 °,10 ° ].
Certainly, the invention does not limit the specific preset human eye rotation angle, and for 3D display panels with different design parameters, a person skilled in the art should determine according to practical application, and select an angle corresponding to the high luminance value as a preset angle interval as a design criterion, which is not described herein again.
S132, overlapping the brightness curves of the first view corresponding to the preset human eye rotation angle to obtain the overlapped brightness curve graph.
Further, after the angle interval of [ -10 °,10 ° ] is determined as the preset human eye rotation angle, all the luminance curves in the preset human eye rotation angle are superimposed, and the superimposed luminance curve graph formed after the superimposition is exemplarily shown in fig. 10a, where the abscissa of the superimposed luminance curve graph is the angle and the ordinate is the luminance. The superimposed brightness graph can show the brightness change of the first view when the grating is in different power-on states under the preset human eye rotation angle. In the embodiment, the superimposed luminance graph is used as a corresponding relation, so that a change relation between the luminance of the first view corresponding to the preset viewpoint and the preset human eye rotation angle can be obtained.
And S2, determining the human eye movement angle adjusted by each grating according to the corresponding relation.
In an alternative embodiment, as shown in fig. 11, step S2 further includes:
and S21, acquiring the position of an adjacent intersection point in a plurality of intersection points formed by a plurality of brightness curves in the superimposed brightness curve graph.
As shown in fig. 10a and 10b, the superimposed luminance graph includes luminance curves of a first view of a plurality of different grating power-up states, the luminance curves of the plurality of first views form a plurality of intersections, and the positions of the intersections indicate the same luminance value of the first view when the grating power-up state is an adjacent power-up sequence in the preset power-up sequence. That is, two adjacent intersections may be formed by three adjacent luminance curves of the first view corresponding to the power-up sequence.
That is, the luminance curve diagram of the T1 picture shown in fig. 8b may be the luminance curve T1 shown in fig. 10b, the luminance curve diagram of the T2 picture shown in fig. 8b may be the luminance curve T2 shown in fig. 10b, and the luminance curve diagram of the T3 picture shown in fig. 8b may be the luminance curve T3 shown in fig. 10 b. The luminance curve T1, the luminance curve T2 and the luminance curve T3 form two adjacent intersections, i.e., the intersection C and the intersection D shown in fig. 10b, and further, the eye movement angle θ which can be adjusted in practical use of each grating is obtained according to the positions of the intersectionsn。
S22, obtaining the human eye movement angle which can be adjusted in the practical application of each grating according to the position of the adjacent intersection point;
as shown in fig. 10b, three adjacent luminance curves can form two adjacent intersection points, and the corresponding angle value between the two adjacent intersection points is the human eye movement angle that can be actually adjusted when each grating is actually applied.
In the prior art, each grating is designed with a theoretical effective width, that is, the adjusted human eye movement angle of each grating is set according to the theoretical effective width. For example, as shown in fig. 2, if the total length of a group of grating periods is 94.57 μm, the effective width d of the grating is 94.57/16 ═ 5.91 μm. Because the effective width is the theoretical design size, in the process of controlling the power-on state of the grating to change the grating opening corresponding to the position of human eyes, the human eye movement angle which can be adjusted by each grating is the theoretical design size, namely the human eye movement angles which are adjusted by the gratings arranged in the prior art are the same value.
However, due to the deviation of the attaching process, the effective widths of the gratings are also different, which causes the problem that the brightness of the image jumps due to the process error in practical application because the human eye movement angles that can be changed by each grating are also different. Therefore, in the embodiment, the adjusted eye movement angle of each grating in practical application can be determined by using the superimposed brightness curve schematic diagram, so that an eye movement angle adjustment error caused by a manufacturing error can be effectively made up, the brightness jump of an image received by the eyes is further improved, and the 3D experience of a user is improved.
In an alternative embodiment, as shown in fig. 12, step S3 further includes:
s31, determining the body adjusting distance of the grating based on the human eye movement angle;
fig. 13 shows a view formed with each grating when the position of the viewpoint of the human eye changes. As shown in fig. 13, the viewpoint is located at an optimal viewing distance S from the 2D display panel, and H is a placement height between the 2D display panel and the 3D display panel, which are known design parameters. Exemplarily, the placement height in fig. 1 is the sum of the TFT substrate of the 2D display panel, the upper substrate of the 3D display panel, and the thickness of the spacer therebetween. For the placement height H, those skilled in the art can set the placement height H according to practical applications to satisfy the sight line diagram as a design criterion.
That is, the process adjustment distance X in the prior art is consistent with the effective width d, that is, X1＝X2＝XnD. In consideration of process errors, the body adjustment distance of each grating in practical application is not uniform, and therefore, the adjustable body adjustment distance of each grating is sequentially represented as L1,L2…Ln。
The process of moving the viewpoint of the human eye from viewpoint 1to viewpoint 2 and then to viewpoint 3 is shown in fig. 13. The human eyes are positioned at the optimal viewing distance S, the placement height of the 3D display panel is H, and the body adjusting distance of each grating is expressed as L in consideration of process errors1,L2…Ln. From viewpoint 1to viewpoint 2, the moving distance of human eyes is y1The opening position of the grating is changed when the human eye moves, and the grating S1Is opened, the grating S1The actual body adjustment distance to be adjusted is L1Grating S1The edge of the view angle is connected with the viewpoint 1 and the viewpoint 2 respectively to form a sight line included angle theta1The angle theta1Is a grating S1The angle of movement of the human eye to be adjusted. From viewpoint 2to viewpoint 3, the distance of eye movement is y2The actual adjustment distance of the corresponding grating is L2Grating S2Is opened, the grating S2The right edge of (1) and the line of viewpoint 1 and the raster S2The left edge of (b) and the line connecting the viewpoint 3 form theta2The angle theta2Is a grating S2The angle of movement of the human eye to be adjusted. That is, θ1And theta2The actual eye movement angle that can be adjusted for the corresponding grating adjusted at power-up, due to process errors in the prior art, θ1And theta2May be different. All control anglesDegree theta1,θ2…θnThe sum of the angle of rotation theta is the angle of rotation theta of human eyes in practical applicationHuman eye。
The adjusted body adjustment distance Ln of each grating and the adjusted eye movement angle theta of the grating can be obtained from the schematic diagram shown in FIG. 13nThe relation of (A) is as follows:
L1＝H*tan(θ1)；
L2＝H*tan(θ1+θ2)-L1；
Ln＝H*tan(θ1+θ2+…θn)-L1-…-Ln-1。
similarly, the eye movement distance yn adjusted by each grating and the eye movement angle θ adjusted by the gratingnThe relation of (A) is as follows:
y1＝S*tan(θ1)；
y2＝S*tan(θ1+θ2)-y1；
yn＝S*tan(θ1+θ2+…θn)-y1-…-yn-1。
therefore, the body adjusting distance of the grating in practical application can be further obtained according to the formula based on the eye movement angle adjusted in practical application of the grating obtained in the previous step, and the method is different from the prior art in which the process adjusting distance of the grating with a uniform value is obtained only according to theoretical calculation, and the body adjusting distance of the embodiment takes the actual process error into consideration, so that the adjusting precision of the grating can be improved.
S32, determining the adjusting mode of the grating based on the body adjusting distance, and controlling the power-on state of the gratings according to the body adjusting distance mode.
In an alternative embodiment, the step further comprises:
s321, judging the size of the body adjusting distance and the process adjusting distance, and if the body adjusting distance is greater than or equal to the process adjusting distance, controlling the plurality of gratings to keep the current power-on state in an adjusting mode; if the body adjusting distance is smaller than the process adjusting distance, the adjusting mode is to control the plurality of gratings to be powered up in the following sequence according to the preset power-up sequence.
For example, in this step, unlike the prior art in which the adjustment manner of the grating opening corresponding to the human eye is determined according to the fixed process adjustment distance, the present embodiment uses the body adjustment distance L calculated according to the test in the above processnThe value sets the way the grating is adjusted.
If the body adjustment distance is smaller than the process adjustment distance, that is, L is smaller than X, that is, due to an angle error in the process manufacturing, the viewpoint of the human eye actually falls at a position beyond the position corresponding to the grating opening, but the grating is still in the previous power-on state according to the original adjustment mode, so that in this case, each grating needs to be controlled according to a preset power-on control sequence to perform the next power-on state, and when the human eye moves from the point a to the point B, each grating corresponding to the viewpoint B can be timely turned on according to the adjustment mode, so that the brightness of the image received by the human eye is a continuously changing value.
If the body adjustment distance is greater than the process adjustment distance, that is, L is greater than X, that is, due to an angle error in the process manufacturing, the viewpoint of the human eye does not actually fall at the opening position of the corresponding grating, but the grating is adjusted to the next power-on state for displaying according to the original adjustment mode, therefore, in this case, it is necessary to control each grating to be kept in the current state according to the preset power-on control sequence, so that when the human eye moves from the point a to the point B, each grating can be timely turned on according to the adjustment mode, thereby realizing that the brightness of the image received by the human eye is a continuously changing value.
For example, in the conventional process adjustment manner, when a human eye viewpoint falls on the 3D display panel, the grating at the position is turned on according to a preset power-up sequence, and in the prior art, the process distance of each grating, the adjusted human eye movement distance, and the adjusted movement angle are the same parameters respectively. However, due to process errors, the above-mentioned situation that the open raster corresponding to the viewpoint of the human eye and the theoretically open raster cannot correspond to each other occurs in the adjustment method, so that the brightness value of the image received by the human eye is in a jump state.
Referring to the superimposed luminance graph of the first view in the power-on state of the optical grating corresponding to the fixed adjustment manner and the different adjustment manners in the prior art as shown in fig. 14, as can be seen from fig. 14, in the adjustment process of opening or closing the optical grating in the fixed process distance, the luminance of the existing first view is jumpy, that is, a plurality of discontinuous thicker luminance curves in fig. 14, and therefore, when the power-on state of the optical grating is changed each time, the luminance of the image displayed in the first view is changed while the position of the opening of the optical grating is changed, and further, the image received by the eyes of the user is an image with flickering luminance, thereby causing discomfort to the eyes.
In the embodiment of the present invention, the optimal grating adjustment mode can be obtained by superimposing the luminance graphs, that is, as shown in fig. 10b, when the luminance curve of the first view is continuously displayed as shown in the graph, the luminance of the first view is the optimal luminance change, at this time, the position where the eye point of the human eye is located corresponds to the opened grating, and at this time, the luminance of the image received by the human eye is continuously changed without generating a jump, so that the eye discomfort of the user is not caused, and the 3D experience of the user is greatly improved.
A second embodiment of the present invention provides a control device for performing the above method, which is applied to the 3D display panel of the present embodiment, and is capable of controlling the power-on state of the raster of the 3D display panel.
As shown in fig. 15, the control device includes:
the corresponding relation determining module is used for acquiring the corresponding relation between the brightness of a first view corresponding to a preset viewpoint and a preset human eye rotation angle when the 3D display panel is in a display state;
the human eye movement angle determining module is used for determining the human eye movement angle adjusted by each grating according to the corresponding relation;
and the grating control module is used for controlling the power-on states of the plurality of gratings according to the human eye movement angle.
The embodiment can fully consider the situation that the error exists in the eye movement angle adjusted by the grating due to the manufacturing process, the process error is made up, the grating is controlled through the actually adjusted eye movement angle, so that the position of the eye viewpoint is consistent with the opening position of the grating after the grating is powered on when the eye is tracked, the image received by the eye is an image with continuously changed brightness values instead of an image with jump, and therefore the problem that the eye is uncomfortable due to flicker of the displayed image can be effectively solved.
Since the control device provided in the embodiment of the present invention corresponds to the control method of the 3D display panel provided in the above several embodiments, the foregoing embodiments are also applicable to the control device provided in the embodiment, and detailed description is omitted in the embodiment. Those skilled in the art will appreciate that the foregoing embodiments and the attendant advantages are equally applicable to this embodiment, and therefore, the description of the same is not repeated.
A third embodiment of the present invention provides a 3D display device including: the display device comprises a 2D display panel, a 3D display panel with a plurality of gratings and a control device according to the above embodiment of the invention, wherein the 3D display panel is positioned on the light emitting side of the 2D display panel.
Exemplarily, the 3D display device 5 according to the embodiment of the present invention may be as shown in fig. 1, wherein the 3D display panel 51 includes: the liquid crystal display panel comprises a first substrate 511, a second substrate 512, a first grating layer 513 arranged on the second substrate 512, a grating insulating layer 514 covering the first grating layer 513, a second grating layer 515 arranged on the grating insulating layer 514 and alternately arranged with the first grating layer 513, an electrode layer 516 arranged on the surface of the first substrate 511 close to the first grating layer 513, and a liquid crystal layer 517 packaged between the first substrate 511 and the second substrate 512, wherein a first polarizer 518 is formed on the surface of the second substrate 512 facing away from the first grating layer 513.
A spacer 53, for example, a second polarizer, is disposed between the 3D display panel 51 and the 2D display panel 52.
The 2D display panel 52 includes a driving substrate 521, a color film substrate 522, a liquid crystal layer 522 encapsulated between the color film substrate 522 and the driving substrate 521, and a third polarizer 523 disposed on the color film substrate 522.
In the embodiment of the invention, the 3D display panel is arranged below, and the 2D display panel is arranged above. In another specific example, the 3D display panel may be disposed above, the 2D display panel may be disposed below, and the first substrate of the 3D display panel and the TFT substrate of the 2D display panel are respectively located at both sides of the second polarizer. By using the control device of the embodiment of the invention, accurate eye tracking can be realized, and the user experience is improved.
A fourth embodiment of the invention provides a computer device comprising a memory, a processor, a computer program stored on the memory and executable on the control means, the processor implementing the method according to the above embodiment of the invention when executing the program.
A fifth embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored, which, when executed by a processor, implements the control method of the above-described embodiment of the present invention.
In practice, the computer-readable storage medium may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this embodiment, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
As shown in fig. 16, another embodiment of the present invention provides a schematic structural diagram of a computer device. The computer device 12 shown in FIG. 16 is only an example and should not bring any limitations to the functionality or scope of use of embodiments of the present invention.
As shown in FIG. 16, computer device 12 is embodied in the form of a general purpose computing device. The components of computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. Computer device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 16, and commonly referred to as a "hard drive"). Although not shown in FIG. 16, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
The processor unit 16 executes various functional applications and data processing by running a program stored in the system memory 28, for example, to implement a control method of a 3D display panel provided by an embodiment of the present invention.
A sixth embodiment of the present invention provides a 3D display device including: the display device comprises a 2D display panel, a 3D display panel with a plurality of gratings and a computer device according to the above embodiment of the invention, wherein the 3D display panel is positioned on the light-emitting side of the 2D display panel. The 3D display panel of the embodiment of the invention is controlled by using the control signal output by the computer equipment.
Since the control device provided in the embodiment of the present invention corresponds to the control method of the 3D display panel provided in the above several embodiments, the foregoing embodiments are also applicable to the control device provided in the embodiment, and detailed description is omitted in the embodiment. Those skilled in the art will appreciate that the foregoing embodiments and the attendant advantages are equally applicable to this embodiment, and therefore, the description of the same is not repeated.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations and modifications can be made on the basis of the above description, and all embodiments cannot be exhaustive, and all obvious variations and modifications belonging to the technical scheme of the present invention are within the protection scope of the present invention.
Claims (12)
1. The control method of the 3D display panel is characterized by being applied to the 3D display panel with a plurality of gratings;
the method comprises the following steps:
acquiring the corresponding relation between the brightness of a first view corresponding to a preset viewpoint and a preset human eye rotation angle when a 3D display panel is in a display state;
determining the human eye movement angle adjusted by each grating according to the corresponding relation;
and controlling the power-on states of the plurality of gratings according to the human eye movement angle.
2. The method of claim 1, wherein obtaining the correspondence between the brightness of the first view corresponding to the preset viewpoint and the preset human eye rotation angle when the 3D display panel is in the display state further comprises:
taking the central position of the first view at a preset distance from the light-emitting surface of the 3D display panel as a rotation center, and taking the preset distance as a radius, and obtaining a brightness curve of the first view corresponding to different rotation angles at the radius end position when the grating is in an initial power-on state;
powering up the plurality of gratings according to a preset power-up sequence to obtain brightness curves of the first view in different power-up states;
and generating a superimposed brightness curve graph by using the brightness curves of all the first views, wherein the superimposed brightness curve graph is used as the corresponding relation, and the preset human eye rotation angle is included in the rotation angle.
3. The method of claim 2, wherein the number of viewpoints is at least two, and at least one of the viewpoints is the preset viewpoint;
the first view corresponding to the preset viewpoint is a first color;
the second view corresponding to the non-preset viewpoint is a second color.
4. The method of claim 2, wherein the superimposed luminance graph has an abscissa of angle and an ordinate of luminance;
the superimposing luminance profiles of all the first views to generate superimposed luminance profiles, the superimposed luminance profiles further including as the correspondence;
determining a preset human eye rotation angle according to the brightness curve of the first view;
and superposing the brightness curves of the first view corresponding to the preset human eye rotation angle to obtain the superposed brightness curve graph.
5. The method of claim 4, wherein the determining the eye movement angle adjusted by each grating according to the corresponding relationship further comprises:
acquiring the position of an adjacent intersection point in a plurality of intersection points formed by a plurality of brightness curves in the superimposed brightness schematic diagram;
and obtaining the human eye movement angle adjusted by each grating according to the position of the adjacent intersection points.
6. The method of claim 5, wherein the controlling the power-up states of the plurality of gratings according to the eye movement angle further comprises:
determining a body adjustment distance of the grating based on the human eye movement angle;
and determining the adjustment mode of the optical gratings based on the body adjustment distance, and controlling the power-on states of the optical gratings according to the adjustment mode.
7. The method of claim 6, wherein determining an adjustment mode for the gratings based on the body adjustment distance and controlling the power-up states of the plurality of gratings according to the adjustment mode further comprises:
judging the size of the body adjusting distance and the process adjusting distance, and if the body adjusting distance is greater than or equal to the process adjusting distance, controlling the plurality of gratings to keep the current power-on state; if the body adjusting distance is smaller than the process adjusting distance, the adjusting mode is to control the plurality of gratings to be powered up in the following sequence according to the preset power-up sequence.
8. A control device for a grating for performing the method according to any one of claims 1to 7, characterized in that the control device comprises:
the corresponding relation determining module is used for acquiring the corresponding relation between the brightness of a first view corresponding to a preset viewpoint and a preset human eye rotation angle when the 3D display panel is in a display state;
the human eye movement angle determining module is used for determining the human eye movement angle adjusted by each grating according to the corresponding relation;
and the grating control module is used for controlling the power-on states of the plurality of gratings according to the human eye movement angle.
9. A 3D display device comprising: 2D display panel, 3D display panel with a plurality of gratings located at the light exit side of the 2D display panel, the control device of claim 8.
10. A computer device comprising a memory, a processor, a computer program stored on the memory and executable on the control means, the processor implementing the method according to any one of claims 1-7 when executing the program.
11. A 3D display device, a 2D display panel, a 3D display panel with a plurality of gratings at the light exit side of the 2D display panel and a computer apparatus as claimed in claim 10.
12. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-7.
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