CN114173108B - 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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
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 a 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; determining the human eye movement distance actually regulated by each grating according to the corresponding relation; and controlling the power-on states of the gratings according to the human eye movement angle. The method of the embodiment of the invention can fully consider the situation that the human eye movement angle regulated by the grating is in error due to the manufacturing process, make up the process error, control the grating through the actually regulated human eye movement angle, realize that the image received by human eyes is the image with continuously changed brightness value, but not the image with jump, thus the embodiment can effectively solve the problem of human eye discomfort during 3D display.
Description
Technical Field
The invention relates to the technical field of 3D display. And more particularly, to a control method and apparatus of a 3D display panel, a computer device, and a storage medium.
Background
Naked eye 3D technology is mainly divided into two main types: binocular disparity and the original light field are reproduced. Wherein, the principle of binocular parallax reproduction is: the left eye and the right eye of a person respectively receive two views with parallax, and the images of the two views are synthesized in the brain to generate a 3D effect. In this way, in the conventional 3D technology, a display panel is designed so that images having parallax can be displayed and mapped to the left eye and the right eye of a person, respectively, so that a 3D image can be generated. However, when a user views a 3D display image, eye discomfort is often perceived, affecting the 3D viewing experience.
Disclosure of Invention
The invention aims to provide a control method, a control device, computer equipment and a storage medium of a 3D display panel, so as to solve at least one of the problems in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the first aspect of the present invention provides a control method of a 3D display panel, which is applied to a 3D display panel having a plurality of gratings;
The method comprises the following steps:
acquiring a 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;
determining the human eye movement angle regulated by each grating according to the corresponding relation;
and controlling the power-on states of the gratings according to the human eye movement angle.
Further, when the 3D display panel is in the display state, the obtaining the corresponding relationship between the brightness of the first view corresponding to the preset viewpoint and the preset rotation angle of human eyes further includes:
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 to obtain brightness curves of the first view corresponding to different rotation angles at the radius end point position when the grating is in an initial power-on state;
powering up the plurality of gratings according to a preset powering up sequence to obtain brightness curves of the first view under different powering up states;
and generating a superimposed brightness curve graph of all brightness curves of the first view, 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 the 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 the angle, and the ordinate is the luminance;
the brightness curves of all the first views are overlapped to generate an overlapped brightness curve graph, and the overlapped brightness curve graph further comprises as the corresponding relation;
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 superposition brightness curve graph.
Further, the determining the human eye movement angle adjusted by each grating according to the correspondence further includes:
acquiring the positions of adjacent intersection points 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 regulated by each grating according to the positions of the adjacent intersection points.
Further, the controlling the power-on states of the plurality of gratings according to the human eye movement angle further includes:
Determining a body adjusting distance of the grating based on the human eye movement angle;
and determining an adjusting mode of the gratings based on the body adjusting distance, and controlling the power-on states of the gratings according to the adjusting mode.
Further, determining an adjustment mode of the gratings based on the body adjustment distance, and controlling the power-on states of the gratings according to the adjustment mode further includes:
judging the sizes of the body adjusting distance and the process adjusting distance, and if the body adjusting distance is larger than or equal to the process adjusting distance, controlling the multiple gratings to keep the current power-on state in an adjusting mode; and if the body adjusting distance is smaller than the process adjusting distance, controlling the plurality of gratings to be powered on in the next sequence according to the preset power-on sequence in an adjusting mode.
A second aspect of the present invention provides a control device for a grating for performing the method of the first aspect of the present invention, the control device comprising:
the corresponding relation determining module is used for obtaining 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;
The human eye movement angle determining module is used for determining the human eye movement angle regulated by each grating according to the corresponding relation;
and the grating control module is used for controlling the power-on states of the gratings according to the human eye movement angle.
A third aspect of the present invention provides a 3D display device, comprising: the control device comprises a 2D display panel, a 3D display panel with a plurality of gratings, which is positioned on the light emitting side of the 2D display panel, and the control device provided by the second aspect of the invention.
A fourth aspect of the invention provides a computer apparatus comprising a memory, a processor, a computer program stored on the memory and operable on the control device, the processor implementing a 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 on 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 implements a method as provided by the first aspect of the invention.
The beneficial effects of the invention are as follows:
according to the technical scheme, the situation that the human eye movement angle regulated by the grating is error due to the manufacturing process can be fully considered, the process error is compensated, the grating is controlled through the actually regulated human eye movement angle, and when human eyes are tracked, the position of the human eye viewpoint is consistent with the position of the opening of the electrified grating, so that the image received by human eyes is an image with continuously changed brightness value, and is not a jump image, and therefore the problem of discomfort of human eyes in 3D display can be effectively solved.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Fig. 1 is a schematic diagram showing the structure of a 3D display device to which a control method according to an embodiment of the present invention is applied;
FIG. 2 shows an arrangement of 16 gratings in one grating period according to an embodiment of the present invention;
fig. 3 shows white light luminance graphs of a first view and a second view corresponding to the same viewpoint according to an embodiment of the present invention;
FIG. 4a is a graph showing brightness curves of a first view of 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 flow chart of step S1 of an embodiment of the present invention;
FIG. 7 illustrates a process of determining a luminance profile 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 according to an embodiment of the present invention;
fig. 9 shows a flow chart of step S13 of an embodiment of the present invention;
FIGS. 10a and 10b are schematic diagrams showing superimposed brightness curves corresponding to different angles according to embodiments of the present invention;
FIG. 11 shows a schematic flow chart of step S2 in an embodiment of the invention;
FIG. 12 shows a schematic flow chart of step S3 of an embodiment of the invention;
FIG. 13 is a view diagram showing the formation of each grating when the position of the eye point of the present invention is changed;
FIG. 14 shows a luminance profile of a first view of a prior art human eye as its position moves;
FIG. 15 shows a schematic frame diagram of a control device according to an embodiment of the present 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 a naked eye 3D technical scheme for reproducing binocular parallax, and the technical scheme adopts a 2D display panel to be matched with a 3D display panel, such as a TN electronic liquid crystal grating box, so as to realize 3D display. Fig. 1 shows a schematic structural diagram of a 3D display device applied TO a control method according TO an embodiment of the present invention, which includes a 2D display panel and a 3D display panel with a certain height away from a light emitting side of the 2D display panel, wherein the 3D display panel adopts double-layer gratings TO be alternately distributed, and generates an electric field between a first grating (1 TO) and a second grating (2 TO) TO drive liquid crystal TO deflect, so as TO control different areas TO transmit light or not transmit light, thereby realizing that left and right eyes receive different views respectively.
The TN electronic grating liquid crystal box is used as a 3D display panel, and has the advantages that free switching between 2D display and 3D display can be realized, and when in 2D display, the grating of the TN electronic grating liquid crystal box is closed, so that the influence on 2D display transmittance is small. On the other hand, it has a disadvantage in that resolution is lowered, 3D transmittance is lowered, and 3D viewing angle is small.
In order to solve the problem of small 3D viewing angle, the prior art improves the problem by means of human eye recognition tracking technology. In an exemplary embodiment, on the basis of setting the 3D display panel on the light emitting side of the 2D display panel, an eye tracking device is further provided, which is configured to obtain, in real time, position information of a current eye of a viewer in front of the 2D display panel in a 3D display mode, and the control device adjusts a grating opening position of the 3D display panel according to the position information, so that the current viewer can view an optimal 3D image frame through the position information.
The 3D viewing angle can be greatly improved by using the eye tracking technology, and in a specific example, the single eye 3D viewing angle is only 4 ° (crosstalk < 10%) for a 3D display device without eye tracking. The monocular 3D viewing angle was 46 ° for the addition of the eye tracking device (crosstalk < 10%). The eye tracking technique can improve the technical pain point of small 3D viewing angle, but the eye tracking technique also brings problems such as: the flicker of the picture causes discomfort to the human eye during eye tracking.
In view of the above-described phenomenon, the inventors studied the problem of discomfort of human eyes in 3D display. The inventors set TN electronic liquid crystal cell as 3D display panel, the number of viewpoints was designed to be 2, the optimal viewing distance S was set to 34cm, and the inter-pupillary distance was set to 65mm. Fig. 2 shows an arrangement of 16 gratings in one grating period (94.57 μm), the project 3D grating is composed of a first grating 1TO and a second grating 2TO alternately, the 16 gratings (8 1to+8 and 2 TO) are one grating period (Pitch), and for the 16 gratings (ITO), 16 preset power-up sequences for powering up the gratings can be set, that is, each grating can be controlled by adopting 16 preset power-up sequences (steps) during eye tracking.
Further, as shown in fig. 3, the inventor obtains white light luminance graphs of the first View1 and the second View2 displayed on the 3D display panel corresponding to the same viewpoint with the same viewpoint as a reference, where the abscissa of the white light luminance graph is a rotation angle and the ordinate is a luminance value. As can be seen from fig. 3, from the white light luminance curve, the luminance curves for the first View1 can be obtained, and the optimum viewing angles corresponding to the highest luminance values are-20 °, -1 ° and 18 °, respectively, and the optimum viewing angles corresponding to the highest luminance values are-11 °, 8 ° and 27 °, respectively, for the luminance curves for the second View 2. For the same view, the spacing angle between the two best viewpoints is 19 °, that is to say, the spacing angle of the best viewpoints can determine one grating period Pitch of the 3D display panel, that is, the accuracy of the viewpoint spacing angle adjusted by each ITO stripe is 1.2 ° (the spacing angle of the best viewpoint/the number of grating stripes in the grating period, that is, 19/16=1.2 °).
Then, the inventor further uses the first View1 as an example to draw a curve of brightness change of the first View when the power-up state of one grating strip is changed in the process of moving the human eye, so as to obtain a brightness curve of the first View of different power-up states of the same grating as shown in fig. 4a, and fig. 4b is an enlarged schematic diagram shown in a dotted line area in fig. 4 a. The abscissa of fig. 4a and 4b is the rotation angle of the human eye, and the ordinate is the brightness value.
The inventor finds that due to the existence of the alignment deviation of the grating strip lamination in the manufacturing process, the human eye movement angle regulated by the grating strip lamination is different from the theoretical design angle, and the regulation 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 as each other in the optimal state. The worst case during eye tracking is shown in fig. 4B, that is, when the eye moves from the point a to the point B, the brightness value jumps directly from the end of the broken line in the brightness curve 1 to the head end of the broken line in the brightness curve 2, and at this time, the jump exists in the brightness value, and the jump value is 7nits. The jump value is larger as the maximum brightness is higher, and the jump value is possibly larger under the condition of fluctuation of the manufacturing process, so that an image seen by human eyes is a flickering image, and eye discomfort is caused. Therefore, when the corresponding 3D image display is realized by utilizing the eye tracking technology, the eye position changes, the opening position of the grating can be adjusted to match the eye position, the brightness of the eye position at the moment can jump, the phenomenon of flickering appears, the discomfort of the eye can be caused, and the 3D watching effect is influenced.
In view of the above, the inventors have made extensive experiments and studies to solve the above problems by providing a control method, a control device, a 3D display device, a computer apparatus, and a computer-readable storage medium for manufacturing the above 3D display panel.
A first embodiment of the present invention proposes a control method of a 3D display panel, which is applied to a 3D display panel shown in the drawings, the 3D display panel having a plurality of gratings, as shown in fig. 5, the method comprising:
s1, acquiring a 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;
s2, determining the human eye movement distance actually regulated by each grating according to the human eye movement angle regulated by each grating according to the corresponding relation;
s3, controlling the power-on states of the gratings according to the human eye movement angle. .
Unlike the scheme of controlling the power-on state of the grating according to the ideal process parameters in the prior art, the embodiment firstly obtains the corresponding relation between the brightness of the first view of the preset viewpoint and the preset human eye rotation angle, and according to the human eye movement angle regulated in the actual application of the grating determined according to the corresponding relation, the situation that the human eye movement angle regulated by the grating caused by the manufacturing process has errors can be fully considered, namely, the human eye movement angle regulated by the grating according to the corresponding relation is the actually regulated movement angle comprising the process errors, so that the process errors are compensated, and further, the embodiment controls the grating according to the actually regulated human eye movement angle, so that the position of the human eye viewpoint is consistent with the position of the opening of the grating after the power-on is carried out, and the image received by the human eye is the image with continuously changed brightness value instead of the jumping image, therefore, the embodiment can effectively solve the problem that the display image flickers to cause the human eyes to be uncomfortable.
Exemplary, 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 strips (N is an even number) are arranged in one group of grating periods of the 3D display panel, and the effective width of each grating is D.
The method of the embodiment of the invention is described by the 3D display panel with the specific parameters, and the control method is realized by the following steps:
s1, acquiring a 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.
In an alternative embodiment, as shown in fig. 6, step S1 further includes:
and 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 to obtain brightness curves of the first view corresponding to different rotation angles at the radius end point position when the grating is in an initial power-on state.
For example, in this embodiment, the luminance value may be obtained by using a luminance meter, as shown in fig. 7, the luminance meter is placed at a preset distance, and the lens is aligned to a first view corresponding to a preset viewpoint, for example, the first view is an area where the 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 this embodiment is the sum of the optimal viewing distance S and the distance between the 2D display panel and the 3D display panel H.
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 two viewpoints, and one skilled in the art should set according to practical applications. In this embodiment, the first view is set to be the first color, and the second views corresponding to other non-preset viewpoints are set to be the second color, so that the brightness value of the collected first view is prevented from being influenced by the brightness of the second view of the non-preset viewpoint, and the accuracy of the corresponding relationship obtained later is ensured. In a specific example, the first view is set to white and the second view is set to black, and the resulting brightness variation of the first view is more accurate because the gray scale values of the two colors are highest and lowest, respectively.
And then, rotating by taking the central position of the first view for collecting the brightness value as a rotation center and taking the preset distance as a radius, so as to change the position of the mobile brightness meter, and selecting a power-on mode of one grating period, so that the brightness of the first view at the radius end point position, namely the position of the brightness meter, when the grating is in the current power-on state can be obtained, and the brightness is represented in a brightness curve mode.
And S12, powering up the plurality of gratings according to a preset powering-up sequence to obtain brightness curves of the first view under different powering-up states.
As shown in fig. 8a, N power-up modes of N gratings are shown, and the number of gratings is 6, for example, fig. 8b shows the switch states of the gratings S1 to S6 after power-up control when different pictures T1 to T6 are displayed. As shown in fig. 8b, when the human eye displays the image T1 on the first position 3D display panel, the corresponding gratings 1, 2, and 3 are opened, and when the human eye moves to the second position 3D display panel to display the image T2, the corresponding gratings 2, 3, and 4 are opened, so that the movement of the gratings 1, 2, and 3 in the visual position is formed.
Therefore, for the present embodiment, after each grating is powered according to all the power-up sequences, the brightness curves of the first view corresponding to different power-up sequences can be obtained. Each brightness curve can identify the brightness change of the first view acquired by the brightness meter in the current power-up state.
Fig. 4a shows a luminance curve of the first view obtained by changing the power-up state of the primary grating, and as shown in fig. 4a, the luminance curve of the first view formed by the initial power-up state is a luminance curve 1, and the luminance curve of the first view after the change of the primary power-up state is a luminance curve 2.
S13, superposing brightness curves of all the first views to generate a superposition brightness curve graph, wherein the superposition 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 brightness meter test process is a process of simulating the viewpoint change, and when the brightness meter position changes with the rotation angle, that is, the viewpoint position of the human eye can be equivalently changed, that is, the rotation angle can also be the rotation angle of the human eye.
Taking the luminance curve of the first view shown in fig. 3 as an example, the rotation angle ranges from (-80 °), and the corresponding angle intervals at the three peaks with higher luminance are [ -30 °, -10 ° ], [ -10 °,10 ° ] and [ -10 °,30 ° ], respectively. In order to improve the accuracy of the superimposed luminance graph, the embodiment superimposes the luminance curves in the [ -10 °,10 ° ] angle interval corresponding to the highest luminance value, that is, the preset human eye rotation angle of the embodiment is [ -10 °,10 ° ].
Of course, the present invention is not limited to specific preset human eye rotation angles, 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 a high brightness value as a preset angle interval as a design criterion, which is not described herein.
And S132, superposing brightness curves of the first view corresponding to the preset human eye rotation angle to obtain the superposition brightness curve graph.
Further, after determining that the angle interval of [ -10 °,10 ° ] is the preset human eye rotation angle, all luminance curves in the preset human eye rotation angle are superimposed, and an exemplary superimposed luminance graph formed after the superimposition is shown in fig. 10a, where the abscissa of the superimposed luminance graph is the angle and the ordinate is the luminance. The superimposed luminance graph can show luminance changes corresponding to the first view when the grating is in different power-up states at a preset angle of rotation of the human eye. In this embodiment, by using the superimposed luminance graph as the correspondence relationship, the change relationship between the luminance of the first view corresponding to the preset viewpoint and the preset human eye rotation angle can be obtained.
S2, determining the human eye movement angle regulated by each grating according to the corresponding relation.
In an alternative embodiment, as shown in fig. 11, step S2 further includes:
s21, acquiring the positions of adjacent intersection points in a plurality of intersection points formed by a plurality of brightness curves in the superimposed brightness graph.
As shown in fig. 10a and 10b, the superimposed luminance graph includes luminance curves of first views of a plurality of different grating power-up states, where a plurality of intersections are formed on the luminance curves of the first views, and positions of the intersections indicate that the luminance values of the first views are the same when the grating power-up states are adjacent power-up sequences in a preset power-up sequence. That is, two adjacent intersections may be formed by the luminance curves of the first view corresponding to the three adjacent power-up sequences.
That is, the luminance curve of the display T1 in fig. 8b may be the luminance curve T1 in fig. 10b, the luminance curve of the display T2 in fig. 8b may be the luminance curve T2 in fig. 10b, and the luminance curve of the display T3 in fig. 8b may be the luminance curve T3 in fig. 10 b. The brightness curve T1, the brightness curve T2 and the brightness curve T3 form two adjacent intersection points, namely an intersection point C and an intersection point D shown in fig. 10b, and further, the human eye movement angle θ which can be adjusted in practical application of each grating is obtained according to the intersection point position n 。
S22, obtaining the human eye movement angle which can be adjusted in the practical application of each grating according to the positions of the adjacent intersection points;
as shown in fig. 10b, three adjacent brightness curves can form two adjacent intersection points, and the corresponding angle value between the two adjacent intersection points is the human eye movement angle which can be actually adjusted during the actual application of each grating.
For the prior art, since 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 overall length of a set of grating periods is 94.57 μm, the effective width d of the grating is d= 94.57/16=5.91 μm. Because the effective width is the theoretical design size, in the process of controlling the grating power-on state to change the grating opening corresponding to the eye position, the eye movement angle which can be adjusted by each grating is the theoretical design size, namely the same value of the eye movement angle which is adjusted by the grating in the prior art.
However, due to the deviation of the attaching process, the effective widths of the gratings are not the same, so that the moving angles of human eyes, which can be changed by each grating, are not consistent in practical application, and the problem that the brightness of the image jumps due to the process error is caused. Therefore, the embodiment can determine the adjusted human eye movement angle of each grating in actual application by utilizing the superimposed brightness curve schematic diagram, thereby effectively compensating the human eye movement angle adjustment error caused by the manufacturing error, further improving the brightness jump of the image received by human eyes and improving the 3D experience of the user.
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 moving angle;
fig. 13 shows a view diagram formed with each grating when the position of the eye point is changed. As shown in fig. 13, the view point is located at the optimal viewing distance S from the 2D display panel, and H is the placement height between the 2D display panel and the 3D display panel, which are all known design parameters. Illustratively, the placement height in fig. 1 is the sum of the thickness of the TFT substrate of the 2D display panel, the substrate on the 3D display panel, and the spacer therebetween. For the placement height H, those skilled in the art can set the design criteria to satisfy the line-of-sight schematic diagram according to practical applications.
NamelyTo say that the process adjustment distance X in the prior art is consistent with the effective width d, namely X 1 ＝X 2 ＝X n =d. In consideration of process errors, the body adjustment distance of each grating in practical application is not consistent, so that the body adjustment distance of each grating is sequentially expressed as L 1 ,L 2 …L n 。
The process of moving the human eye point of view from point of view 1 to point of view 2 and then to point of view 3 is shown in fig. 13. The human eyes are at the optimal viewing distance S, the placement height of the 3D display panel is H, and the body adjustment distance of each grating is expressed as L in consideration of the process error 1 ,L 2 …L n . When the visual point is from the visual point 1 to the visual point 2, the human eye moving distance is y 1 The position of the opening of the grating is changed when the human eye moves, and the grating S 1 Is turned on, grating S 1 The actual body adjustment distance required to be adjusted is L 1 Grating S 1 The included angle of the line of sight formed after the edges of the two are respectively connected with the view point 1 and the view point 2 is theta 1 The included angle theta 1 Then it is grating S 1 The human eye movement angle to be adjusted. From viewpoint 2 to viewpoint 3, the human eye moves a distance y 2 The actual adjustment distance of the corresponding grating is L 2 Grating S 2 Is turned on, grating S 2 A line connecting the right edge of (1) with viewpoint 1 and a grating S 2 Form θ with the line of the left edge of viewpoint 3 2 The included angle theta 2 Then it is grating S 2 The human eye movement angle to be adjusted. That is, θ 1 And theta 2 For the actual human eye movement angle which can be adjusted by the adjusted grating in the corresponding power-up state, due to the process error in the prior art, θ 1 And theta 2 May be different. All control angles theta 1 ,θ 2 …θ n The sum of the angles is the rotation angle theta of the human eyes in practical application Human eyes 。
The body adjustment distance Ln adjusted by each grating and the adjusted human eye movement angle theta of the grating can be obtained from the schematic diagram shown in FIG. 13 n The relation of (2) is:
L 1 ＝H*tan(θ 1 )；
L 2 ＝H*tan(θ 1 +θ 2 )-L 1 ；
L n ＝H*tan(θ 1 +θ 2 +…θ n )-L 1 -…-L n-1 。
similarly, the human eye movement distance yn regulated by each grating and the human eye movement angle theta regulated by the grating n The relation of (2) is:
y 1 ＝S*tan(θ 1 )；
y 2 ＝S*tan(θ 1 +θ 2 )-y 1 ；
y n ＝S*tan(θ 1 +θ 2 +…θ n )-y 1 -…-y n-1 。
therefore, according to the formula, the body adjustment distance of the grating in actual application can be further obtained based on the human eye movement angle adjusted in actual application of the grating obtained by the steps, unlike the process adjustment distance of the grating which is obtained by theoretical calculation only according to the prior art and is uniform, the body adjustment distance of the embodiment considers actual process errors, and therefore the adjustment accuracy of the grating can be improved.
S32, determining an adjusting mode of the gratings based on the body adjusting distance, and controlling the power-on states of the gratings according to the body adjusting distance mode.
In an alternative embodiment, the step further comprises:
s321, judging the sizes 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 gratings to keep the current power-on state; and if the body adjusting distance is smaller than the process adjusting distance, controlling the plurality of gratings to be powered on in the next sequence according to the preset power-on sequence in an adjusting mode.
In this step, the embodiment uses the method according to the above-mentioned method, which is different from the prior art in which the adjustment of the grating opening corresponding to the human eye is determined according to the fixed process adjustment distance Body adjustment distance L obtained through in-process test calculation n The value sets the mode of adjustment of the grating.
If the adjustment distance of the body is smaller than the adjustment distance of the process, that is, L < X, that is, because of an angle error in process manufacture, the viewpoint of the human eye actually falls to a position exceeding the position corresponding to the aperture of the grating, but the grating is still in the last power-on state according to the original adjustment mode, so that in this case, each grating needs to be controlled to perform the next power-on 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 at the corresponding viewpoint B can be timely opened according to the adjustment mode, and the brightness of the image received by the human eye is continuously changed.
If the adjustment distance of the body is greater than the adjustment distance of the process, that is, L > X, that is, because of an angle error in process manufacture, 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 display according to the original adjustment mode, so that in this case, each grating needs to be controlled 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 opened according to the adjustment mode, and the brightness of the image received by the human eye is continuously changed.
The conventional process adjustment method is that when the eye point falls on the 3D display panel, the gratings are turned on according to a preset power-on sequence, and in the prior art, the process distance of each grating, the adjusted eye movement distance and the adjusted movement angle are the same parameters. However, due to the process error, the adjustment mode can generate the situation that the opened grating corresponding to the eye point and the theoretically opened grating cannot be corresponding, so that the brightness value of the image received by the eye is in a jump state.
Referring to fig. 14, in the prior art, according to the fixed adjustment manner, the superimposed brightness graph of the first view in the powered-on state of the grating corresponding to the different adjustment manners, as shown in fig. 14, in the adjustment process of opening or closing the grating with a fixed process distance, the brightness of the first view is in a jump, that is, a plurality of discontinuous thicker brightness curves in fig. 14, so that when the powered-on state of the grating is changed each time, the position of the grating opening is changed, and simultaneously, the brightness of the image displayed in the first view is changed, which further causes that the image received by the eyes of the user is a brightness flickering image, thereby causing discomfort to the eyes.
In the embodiment of the invention, the grating adjusting mode in the optimal state can be obtained by superposing the brightness curve graph, namely, when the brightness curve of the first view is continuously displayed as shown in the graph, the brightness of the first view is the optimal brightness change, at the moment, the position where the eye point falls corresponds to the opened grating, at the moment, the brightness of the image received by the eyes is continuously changed, jump is not generated, discomfort of eyes of a 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 executing 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 grating of the 3D display panel.
As shown in fig. 15, the control device includes:
the corresponding relation determining module is used for obtaining 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;
the human eye movement angle determining module is used for determining the human eye movement angle regulated by each grating according to the corresponding relation;
and the grating control module is used for controlling the power-on states of the gratings according to the human eye movement angle.
According to the embodiment, the situation that the human eye movement angle regulated by the grating is in error due to the manufacturing process can be fully considered, the process error is compensated, the grating is controlled through the human eye movement angle regulated actually, and when human eye tracking is carried out, the position of the human eye viewpoint is consistent with the position of the opening of the electrified grating, so that the image received by human eyes is an image with continuously changed brightness value, and is not a hopped image, and therefore the problem that the human eyes are uncomfortable due to flickering of a display 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 implementation manner is also applicable to the control device provided in the embodiment, and will not be described in detail in the embodiment. Those skilled in the art should appreciate that the foregoing embodiments and the following advantageous effects are equally applicable to the present embodiment, and therefore, the same parts will not be 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 positioned on the light emitting side of the 2D display panel and a control device according to the embodiment of the invention.
As an example, the 3D display device 5 according to an embodiment of the present invention may be as shown in fig. 1, wherein the 3D display panel 51 includes: the liquid crystal display device 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, second grating layers 515 arranged on the grating insulating layer 514 alternately with the first grating layer 513, an electrode layer 516 arranged on the surface of the first substrate 511 on the side 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 on the side away from the first grating layer 513.
A spacer 53, such as 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 is disposed below, and the first substrate of the 3D display substrate and the TFT substrate of the 2D display panel are respectively located at both sides of the second polarizer. By using the control device provided by 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 said control means, said processor implementing a method according to the above-described embodiment of the invention when said program is executed.
A fifth embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the control method of the above-described embodiment of the present invention.
In practical applications, the computer-readable storage medium may take the form of 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 can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any 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.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. 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 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 ++ 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 kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected 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 merely an example and should not be construed as limiting the functionality and scope of use of embodiments of the present invention.
As shown in FIG. 16, the computer device 12 is in the form of a general purpose computing device. Components of computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, a bus 18 that connects the various system components, including the system memory 28 and the processing units 16.
Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, and a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include Industry Standard Architecture (ISA) bus, micro channel architecture (MAC) bus, enhanced ISA bus, video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.
Computer device 12 typically includes a variety of computer system readable media. Such media can be any available media that is accessible by computer device 12 and includes both volatile and nonvolatile media, removable and non-removable media.
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. The 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 or write to non-removable, nonvolatile magnetic media (not shown in FIG. 16, commonly referred to as a "hard disk drive"). Although not shown in fig. 16, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In such cases, each drive may be coupled to bus 18 through one or more data medium interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules 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 in, for example, 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 or some combination of which may include an implementation of a network environment. Program modules 42 generally perform the functions and/or methods of the embodiments described herein.
The computer device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), one or more devices that enable a user to interact with the computer device 12, and/or any devices (e.g., network card, modem, etc.) that enable the computer device 12 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 22. Moreover, computer device 12 may also communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN) and/or a public network, such as the Internet, through network adapter 20. As shown in fig. 9, the network adapter 20 communicates with other modules of the computer device 12 via the bus 18. It should be appreciated that although not shown in fig. 9, other hardware and/or software modules may be used in connection with computer device 12, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
The processor unit 16 executes various functional applications and data processing by running programs 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 positioned on the light emitting side of the 2D display panel and the computer device according to the embodiment of the invention. The 3D display panel of the embodiment of the invention is controlled by using the control signals 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 implementation manner is also applicable to the control device provided in the embodiment, and will not be described in detail in the embodiment. Those skilled in the art should appreciate that the foregoing embodiments and the following advantageous effects are equally applicable to the present embodiment, and therefore, the same parts will not be repeated.
It should be understood that the foregoing examples of the present invention are provided merely for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (11)
1. A control method of a 3D display panel, which is characterized by being applied to a 3D display panel having a plurality of gratings;
the method comprises the following steps:
acquiring a 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;
determining the human eye movement angle regulated by each grating according to the corresponding relation, wherein the human eye movement angle regulated by each grating is an included angle formed by a connecting line of a grating edge of the grating which is powered on and opened and is close to the human eye movement direction and a viewpoint before the human eye movement and a connecting line of a grating edge of the grating which is powered on and opened and is far away from the human eye movement direction and a viewpoint after the human eye movement;
controlling the power-on states of the gratings according to the human eye movement angle;
when the obtained 3D display panel is in a display state, the corresponding relation between the brightness of the first view corresponding to the preset viewpoint and the preset human eye rotation angle further comprises:
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 to obtain brightness curves of the first view corresponding to different rotation angles at the radius end point position when the grating is in an initial power-on state;
Powering up the plurality of gratings according to a preset powering up sequence to obtain brightness curves of the first view under different powering up states;
and superposing brightness curves of all the first views to generate a superposed brightness curve graph, wherein the superposed brightness curve graph is used as the corresponding relation, and the preset human eye rotation angle is included in the rotation angle.
2. The method of claim 1, 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.
3. The method of claim 1, wherein the superimposed luminance graph has an abscissa of angle and an ordinate of luminance;
the overlapping brightness curves of all the first views to generate an overlapping brightness curve graph, wherein the overlapping brightness curve graph further comprises 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 superposition brightness curve graph.
4. The method of claim 3, wherein said determining the adjusted human eye movement angle of each of said gratings according to said correspondence further comprises:
acquiring the positions of adjacent intersection points 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 regulated by each grating according to the positions of the adjacent intersection points.
5. The method of claim 4, wherein controlling the power-up state of the plurality of gratings based on the angle of movement of the human eye further comprises:
determining a body adjusting distance of the grating based on the human eye movement angle;
and determining an adjusting mode of the gratings based on the body adjusting distance, and controlling the power-on states of the gratings according to the adjusting mode.
6. The method of claim 5, wherein the determining an adjustment of the gratings based on the body adjustment distance and controlling the power up state of the plurality of gratings according to the adjustment further comprises:
judging the sizes of the body adjusting distance and the process adjusting distance, and if the body adjusting distance is larger than or equal to the process adjusting distance, controlling the multiple gratings to keep the current power-on state in an adjusting mode; and if the body adjusting distance is smaller than the process adjusting distance, controlling the plurality of gratings to be powered on in the next sequence according to the preset power-on sequence in an adjusting mode.
7. A control device for a grating performing the method of any one of claims 1 to 6, the control device comprising:
the corresponding relation determining module is used for obtaining 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;
the human eye movement angle determining module is used for determining the human eye movement angle regulated by each grating according to the corresponding relation;
and the grating control module is used for controlling the power-on states of the gratings according to the human eye movement angle.
8. A 3D display device, comprising: a 2D display panel, a 3D display panel with a plurality of gratings on the light exit side of the 2D display panel, a control device according to claim 7.
9. A computer device comprising a memory, a processor, a computer program stored on the memory and executable on the computer device, the processor implementing the method of any one of claims 1 to 6 when the program is executed.
10. A 3D display device, a 2D display panel, a 3D display panel with a plurality of gratings on the light emitting side of the 2D display panel, and a computer apparatus as claimed in claim 9.
11. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method according to any one of claims 1-6.
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