CN114740558A - Method for manufacturing three-dimensional display panel - Google Patents

Method for manufacturing three-dimensional display panel Download PDF

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Publication number
CN114740558A
CN114740558A CN202210441692.8A CN202210441692A CN114740558A CN 114740558 A CN114740558 A CN 114740558A CN 202210441692 A CN202210441692 A CN 202210441692A CN 114740558 A CN114740558 A CN 114740558A
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display panel
grating
slope
oblique line
experimental
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CN202210441692.8A
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CN114740558B (en
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方松
张晶
邵海兵
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1842—Gratings for image generation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

The invention discloses a method for manufacturing a three-dimensional display panel. The manufacturing method of the stereoscopic display panel comprises the following steps: firstly, covering a to-be-installed grating on a to-be-installed display panel, and displaying a calibration oblique line through the to-be-installed display panel; then, rotating the grating to be installed; when the grating strips in the grating to be installed coincide with the calibration inclined lines, stopping rotating the grating to be installed, and determining the current inclined angle of the grating to be installed as an actual inclined angle; and finally, fixedly connecting the grating to be installed with the display panel to be installed to form the three-dimensional display panel. The slope of the calibration slope in the slope image in the present invention is accurate and is consistent with the set value in the display panel program, and the set value is the actual slope angle that can be obtained through the previous experiment; the calibration oblique line is used as a reference object, the grating to be installed can be installed on the display panel at an accurate inclination angle, and the three-dimensional display effect of the three-dimensional display panel can reach the expectation.

Description

Method for manufacturing three-dimensional display panel
Technical Field
The invention relates to the technical field of display, in particular to a manufacturing method of a three-dimensional display panel.
Background
The slit grating or cylindrical lens grating-based naked eye 3D (stereoscopic) technical scheme is a common naked eye 3D (stereoscopic) technical scheme at present, and the principle is that gratings are superposed on a conventional display panel and can refract images in different directions to separate visual pictures of a left eye and a right eye. In the 3D display process, the left-eye image and the right-eye image need to be arranged and displayed on the display panel according to a certain rule (i.e., arranged), so that the user can see the 3D image.
The actual tilt angle of the grating is a very important parameter in the mapping process. The dense arrangement (in the order of microns) of the grating slits makes it difficult to measure the tilt angle directly. Therefore, how to keep the grating inclined precisely is an urgent technical problem to be solved in the manufacturing process of the stereoscopic display panel.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, it is an object of the present invention to provide a method for manufacturing a stereoscopic display panel, which can maintain the precise tilt angle of the optical grating during the manufacturing process of the stereoscopic display panel.
In order to achieve the above object, the present invention provides a method for manufacturing a stereoscopic display panel, comprising the steps of:
covering the grating to be installed on the display panel to be installed, and displaying a calibration oblique line through the display panel to be installed, wherein the slope of the calibration oblique line corresponds to a set actual inclination angle;
rotating the grating to be installed;
when the grating strips in the grating to be installed coincide with the calibration inclined lines, stopping rotating the grating to be installed, and determining the current inclined angle of the grating to be installed as an actual inclined angle;
and fixedly connecting the grating to be installed with the display panel to be installed to form the three-dimensional display panel.
Optionally, before the step of covering the to-be-installed grating on the to-be-installed display panel, the method further includes:
covering the experiment grating on an experiment display panel, and displaying an oblique line image through the experiment display panel, wherein a plurality of oblique lines with different slopes are arranged on the oblique line image;
rotating the experimental grating to enable the experimental grating strip in the experimental grating to be superposed with one of the oblique lines;
and determining the actual inclination angle of the experimental grating according to the calibration slope of the oblique line which is superposed with the experimental grating strip.
Optionally, the step of displaying the oblique line image by the experimental display panel further includes:
acquiring an initial slope and an inclination angle variable of an inclined line in an inclined line image;
a plurality of oblique lines having different slopes are formed on the oblique line image based on the initial slope and the inclination angle variable.
Optionally, the step of obtaining an initial slope of the oblique line in the oblique line image further includes:
obtaining a tilt angle design value of the experimental grating;
and determining the initial slope of the oblique line in the oblique line image according to the oblique angle design value of the experimental grating.
Optionally, the step of forming a plurality of oblique lines with different slopes on the oblique line image based on the initial slope and the variable of the slope angle further includes:
determining an initial inclination angle according to the initial slope;
determining a plurality of slope values according to the initial slope angle and the slope angle variable;
according to the plurality of slope values, a plurality of oblique lines with different slopes are formed on the oblique line image.
Optionally, the step of displaying the calibration oblique line through the display panel to be installed further includes:
and inputting a display instruction to the display panel to be installed so as to enable the display panel to be installed to display a calibration inclined line, wherein the display instruction comprises data of an actual inclined angle, and the inclination of the calibration inclined line is determined according to the actual inclined angle.
Optionally, the tilt angle variable ranges from 0.01 ° to 0.1 °.
Optionally, the step of covering the to-be-installed grating on the to-be-installed display panel further includes:
and coating a lubricant between the grating to be installed and the display panel to be installed to ensure that the grating to be installed and the display panel to be installed are attached.
Optionally, the step of fixedly connecting the grating to be mounted and the display panel to be mounted further includes:
coating optical cement between the grating to be installed and the display panel to be installed;
and curing the optical cement to fixedly connect the grating to be installed with the display panel to be installed.
Optionally, the oblique lines in the oblique line image are single-pixel oblique lines.
Compared with the prior art, the invention has the beneficial effects that: the manufacturing method of the stereoscopic display panel of the invention comprises the following steps: firstly, covering a to-be-installed grating on a to-be-installed display panel, and displaying a calibration oblique line through the to-be-installed display panel; then rotating the grating to be installed; when the grating strips in the grating to be installed coincide with the calibration inclined lines, stopping rotating the grating to be installed, and determining the current inclined angle of the grating to be installed as an actual inclined angle; and finally, fixedly connecting the grating to be installed with the display panel to be installed to form the three-dimensional display panel. The slope of the calibration slope in the slope image in the present invention is accurate and is consistent with the set value in the display panel program, and the set value is the actual slope angle that can be obtained through the previous experiment; the calibration oblique line is used as a reference object, the grating to be installed can be installed on the display panel at an accurate inclination angle, and the three-dimensional display effect of the three-dimensional display panel can reach the expectation.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a first flowchart of a method for manufacturing a stereoscopic display panel according to an embodiment of the invention;
FIG. 2 is a schematic diagram of the installation of a grating to be installed according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an embodiment of the present invention showing the grating strips overlapping the calibration slanted lines;
FIG. 4 is a second flowchart illustrating a method for fabricating a stereoscopic display panel according to an embodiment of the invention;
FIG. 5 is a schematic diagram of an experimental grating strip and a diagonal line overlapping according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a diagonal image in an experiment according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a diagonal image in an experiment according to an embodiment of the present invention.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. Meanwhile, the terms "first" and "second" in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The naked-eye 3D technique displays two left and right images with parallax on a display, and sends the images to left and right eyes, respectively, so that a viewer obtains a stereoscopic impression. The principle of naked-eye 3D display is generally to split an image displayed by a display through a grating or a lens, so that human eyes receive different images, thereby realizing 3D display. The slit grating display is characterized in that a slit with proper parameters is arranged in front of a display panel to shield displayed contents, light reaching human eyes can be separated after a certain distance, and two eyes receive two images with parallax. The lenticular lens type adopts the same principle, only the realization mode is that a slit is changed into a lens, the lens refracts different display contents to different places in the space through the refraction effect of light, the display contents are separated when the lens reaches human eyes, and the human eyes receive two images containing parallax, so that the stereoscopic effect is generated.
In the 3D display process, the left-eye image and the right-eye image need to be arranged and displayed on the display panel according to a certain rule (i.e., arranged), so that the user can see the 3D image. In the process of arranging the images, the actual inclination angle of the grating is a very important parameter, and the stereoscopic display effect is directly influenced.
However, due to factors such as manufacturing process and assembly error, the actual tilt angle of the grating will usually deviate from the ideal design value.
To overcome the above problems, an embodiment of the present invention provides a method for manufacturing a stereoscopic display panel, as shown in fig. 1, including steps 201, 202, 203, and 204, which are as follows:
step 201, as shown in fig. 2, the to-be-installed grating 1 is covered on the to-be-installed display panel 2, and a calibration oblique line is displayed through the to-be-installed display panel, wherein the slope of the calibration oblique line corresponds to the set actual inclination angle.
In the above step, a calibration slope having a slope corresponding to the set actual tilt angle may be output by MATLAB (a kind of mathematical software), and then a slope image S1 including the calibration slope may be displayed on the display panel to be mounted. The calibration slope can be obtained by a previous experiment, and is input into a display driver of the display panel.
Step 202, the grating 1 to be installed is rotated. Specifically, the lubricant may be coated between the grating to be mounted and the display panel to be mounted, so that the grating to be mounted and the display panel to be mounted are attached. The lubricant can be glycerol, and the grating with the installation can smoothly rotate on the display panel through the lubricating effect of the glycerol.
Step 203, as shown in fig. 3, when the grating strip 11 in the grating 1 to be installed coincides with the calibration inclined line L, the grating 1 to be installed stops rotating, and the current inclination angle of the grating 1 to be installed is determined to be the actual inclination angle α. And in the rotation process of the grating 1 to be installed, observing the superposition condition of the marked oblique lines on the grating 1 to be installed and the display panel. When a certain grating strip 11 is completely overlapped with the calibration inclined line L, it indicates that the inclination angle of the grating 1 to be installed reaches the set actual inclination angle α, and is matched with the driving program of the display panel.
The marked oblique line is a single-pixel oblique line, that is, each point on the marked oblique line is a single pixel. Therefore, the superposition condition of the grating strips and the calibration oblique lines can be better observed, and the superposition of the grating strips and the calibration oblique lines is more accurate.
And 204, fixedly connecting the grating 1 to be installed with the display panel 2 to be installed to form a three-dimensional display panel. Wherein, step 204 may comprise the steps of:
first, an optical glue is applied between the grating 1 to be mounted and the display panel 2 to be mounted. Wherein the optical adhesive is transparent optical adhesive, and the light transmittance is more than 90%.
And then, curing the optical cement to fixedly connect the grating 1 to be installed with the display panel 2 to be installed.
In the prior art, when the grating is attached to the display panel, the edge or the corner of the display panel is used as a reference for attachment in a conventional manner, and the attachment is very easy to be askew in the process, so that the actual inclination angle of the grating is inconsistent with the set value in the display panel program, and the three-dimensional display effect of the three-dimensional display panel cannot reach the expected ideal state.
In the method steps of the embodiment, the slope of the calibration slope in the slope image S is accurate and is consistent with the setting value in the display panel program, and the setting value is the actual slope angle that can be obtained through previous experiments; the calibration oblique line is used as a reference object, when the grating strip is superposed with the calibration oblique line, the actual inclination angle of the grating 1 to be installed can be ensured to be consistent with the set value in the display panel, so that the grating 1 to be installed is installed on the display panel at an accurate inclination angle, and the three-dimensional display effect of the three-dimensional display panel reaches an expected ideal state.
The design value of the grating refers to a design value obtained when optical design is theoretically performed; the design value and the actual value have certain deviation, and the actual value (the actual value after the process processing) of the grating, namely the accurate value of the actual inclination angle, can be obtained through experiments and is used as calibration.
In the embodiment of the present invention, in order to obtain the actual tilt angle of the grating, experiments are required to be performed before mass production, so as to obtain an accurate value of the actual tilt angle of the grating and an accurate value of the calibration slope.
Therefore, as shown in fig. 4, before step 201, step 101, step 102 and step 103 are further included, specifically as follows:
step 101, the experimental raster is covered on the experimental display panel, and a slash image S2 is displayed through the experimental display panel, wherein the slash image S2 has a plurality of slashes with different slopes.
Specifically, a layer of glycerin may be coated on the experimental grating or the experimental display panel to make the experimental grating adsorbed on the experimental display panel. The oblique line image S2 is a single-pixel oblique line image S2 with different slopes, which is created based on an image algorithm of MATLAB single-pixel slope transformation, and the oblique lines in the oblique line image S2 are all single-pixel oblique lines, that is, each point on the oblique lines is a single pixel. Therefore, the superposition condition of the grating strips and oblique lines can be observed and tested subsequently.
And then, lighting the experimental display panel, burning the oblique line image S into the experimental display panel through display panel matched software, and projecting the oblique line image S onto the display panel for displaying.
Step 102, as shown in fig. 5, the experimental grating is rotated to make the experimental grating strip 12 in the experimental grating coincide with one of the oblique lines L1. Wherein the oblique line image S2 is a dark background, for example, a black background; the oblique line is a red oblique line, a green oblique line, a blue oblique line or an oblique line of other colors, and the red oblique line is preferred in the embodiment, so that the overlapping condition of the experimental grating bars and the oblique lines can be favorably observed.
Step 103, determining the actual inclination angle α of the experimental grating according to the calibration slope of the oblique line L1 coinciding with the experimental grating strip 12. The calibration slope is the tangent value of the actual inclination angle, and after the calibration slope is obtained, the actual inclination angle can be obtained through an arc tangent function.
In one embodiment, in step 101, the step of displaying the oblique line image S2 through the experimental display panel includes:
first, the initial slope and the inclination angle variable of the oblique line in the oblique line image S2 are acquired. Wherein, the range of the inclination angle variable is 0.01 ° to 0.1 °, and can be selected to be 0.02 ° in this embodiment. Specifically, the step of acquiring the initial slope of the oblique line in the oblique line image S2 includes: obtaining a tilt angle design value of the experimental grating; the initial slope of the slope in the slope image S2 is determined from the design value of the slope angle of the experimental grating. For example, the design tilt angle of the experimental grating is 15.3 °, and the actual tilt angle of the experimental grating may deviate from the design tilt angle of 15.3 °, so the initial slope may be selected in a certain range, such as the range of tan15.0 ° to tan15.6 °, and the initial slope in this embodiment may be selected as tan15.2 ° or tan15.3 °. As shown in fig. 6, the resolution size of the slant line image S2 output by MATLAB can be determined according to the resolution size of the display panel, and the larger the resolution of the display panel, the larger the resolution of the slant line image; for example, if the resolution of the display panel is M × N, the MATLAB output is set to have the resolution of the oblique line image S2 of M × N, where tan15.3 ° is the initial slope of the oblique line in the oblique line image S2.
Then, based on the initial slope and the inclination angle variable, a plurality of oblique lines different in slope are formed on the oblique line image S2. Specifically, the method comprises the following steps:
an initial tilt angle is determined from the initial slope. Wherein, the initial inclination angle is set as alpha0Initial slope K ═ tan α0Thus the initial tilt angle alpha0＝arctanK。
A plurality of slope values are determined based on the initial tilt angle and the tilt angle variable. Wherein, let the variable of the inclination angle be Delta alpha, the inclination angle alphanN is a positive integer greater than 1, and the slope value K corresponding to the slope linen＝tanαn. The slope conversion may be performed with the upper right corner of the oblique line image S as the origin.
A plurality of oblique lines with different slopes are formed on the oblique line image S according to the plurality of slope values. Based on the MATLAB, the method has the advantages of simple process,according to a plurality of slope values KnA plurality of oblique lines of different slopes are formed on the oblique line image S.
When a certain grating strip and slope of the experimental grating are KnWhen the oblique lines are completely overlapped, the actual inclination angle of the experimental grating can be determined to be arctanKn。
Through the series of steps, the actual inclination angle of the experimental grating can be accurately acquired.
In one embodiment, in step 201, the step of displaying the marked oblique line through the display panel 2 to be installed further includes:
and inputting a display instruction to the display panel 2 to be installed so as to enable the display panel 2 to be installed to display a calibration inclined line, wherein the display instruction comprises data of an actual inclined angle, and the slope of the calibration inclined line is determined according to the actual inclined angle. Wherein the slope of the calibration slope is KnThe actual tilt angle is arctanKn。
In one embodiment, the method for manufacturing the stereoscopic display panel specifically includes the following steps:
(1) the experimental grating is covered on an experimental display panel, single-pixel oblique line images with different slopes are manufactured based on an image algorithm of MATLAB single-pixel slope conversion, the oblique line images are displayed through the experimental display panel, and a plurality of oblique lines with different slopes are arranged on the oblique line images. The method and the principle for making the oblique line image are as follows:
assuming that the theoretical design value of the tilt angle of the experimental grating is 17.5 °, the tilt angle range of the slant line in the slant line image may be 17 to 18 °. The initial slope of the slope is tan17.5 ° -0.315, as shown in fig. 7, and the slope image resolution size of MATLAB output may be 3488 × 1100. The initial slant angle of the slant line is 17.5. The variation of the inclination angle was 0.02 °. Oblique line images are generally horizontal images, i.e. the width of the image is greater than the height. The grating is inclined at an angle in the range of approximately 17 to 18 deg., and thus, the range of inclination angles of the oblique line is also limited to 17 to 18 deg., and the slope of the oblique line ranges from arctan17 deg. to arctan18 deg..
For another example, assuming that the accuracy of the grating processing process is known to be ± 0.3 °, and the design value of the tilt angle of the experimental grating is 15.3 °, the actual tilt angle range is approximately 15.0 ° to 15.6 °. Therefore, on the slant line image, only a slant line showing a slope in the range of arctan15.0 ° to arctan15.6 ° may be set.
The oblique line image can be obtained by the method, and a plurality of oblique lines with different slopes are arranged on the oblique line image, so that accurate data are provided for measuring the oblique angle of the grating in the subsequent experiment.
(2) And rotating the experimental grating to enable the experimental grating strip in the experimental grating to coincide with one of the oblique lines. Wherein, the oblique line image is a black background; the oblique line is a red oblique line, so that the superposition condition of the experimental grating bars and the oblique line can be observed conveniently.
(3) And determining the actual inclination angle of the experimental grating according to the calibration slope of the oblique line which is superposed with the experimental grating strip. The actual tilt angle is alpha.
(4) The grating 1 to be installed is covered on the display panel 2 to be installed, and a calibration inclined line is displayed through the display panel 2 to be installed, wherein the slope of the calibration inclined line corresponds to the set actual inclination angle. A calibration slope of a slope K corresponding to the set actual tilt angle α is output by MATLAB, and then a slope image S containing the calibration slope is displayed on the display panel 2 to be mounted.
(5) And coating glycerol between the grating 1 to be installed and the display panel 2 to be installed, so that the grating 1 to be installed and the display panel 2 to be installed are attached, and slowly rotating the grating 1 to be installed.
(6) And when the grating strips in the grating 1 to be installed coincide with the calibration inclined lines, stopping rotating the grating 1 to be installed, and determining the current inclined angle of the grating 1 to be installed as the actual inclined angle alpha. And continuously observing the superposition condition of the marked oblique lines on the grating 1 to be installed and the display panel in the rotating process of the grating 1 to be installed.
(7) And coating optical cement between the grating 1 to be installed and the display panel 2 to be installed, and curing the optical cement to fixedly connect the grating 1 to be installed and the display panel 2 to be installed. And finally forming the stereoscopic display panel.
The display panel may be an LED display panel or an LCD display panel, and may be an in-vehicle LCD display panel, for example.
Compared with the prior art, the invention has the beneficial effects that: the manufacturing method of the stereoscopic display panel of the invention comprises the following steps: firstly, covering a grating 1 to be installed on a display panel 2 to be installed, and displaying a calibration oblique line through the display panel 2 to be installed; then, rotating the grating 1 to be installed; when the grating strips in the grating 1 to be installed coincide with the calibration inclined lines, stopping rotating the grating 1 to be installed, and determining the current inclined angle of the grating 1 to be installed as an actual inclined angle; and finally, fixedly connecting the grating 1 to be installed with the display panel 2 to be installed to form the three-dimensional display panel. Through the steps of the method, the grating can be arranged on the display panel at an accurate inclination angle, and the three-dimensional display effect of the three-dimensional display panel is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A method for manufacturing a stereoscopic display panel at least comprises the following steps:
covering a to-be-installed grating on a to-be-installed display panel, and displaying a calibration oblique line through the to-be-installed display panel, wherein the slope of the calibration oblique line corresponds to a set actual inclination angle;
rotating the grating to be installed;
when the grating strips in the grating to be installed coincide with the calibration inclined lines, stopping rotating the grating to be installed, and determining the current inclined angle of the grating to be installed as the actual inclined angle;
and fixedly connecting the grating to be installed with the display panel to be installed to form the three-dimensional display panel.
2. The method for manufacturing a stereoscopic display panel according to claim 1, further comprising, before the step of covering the barrier to be mounted on the display panel to be mounted, the steps of:
covering an experiment grating on an experiment display panel, and displaying an oblique line image through the experiment display panel, wherein a plurality of oblique lines with different slopes are arranged on the oblique line image;
rotating the experimental grating to enable an experimental grating strip in the experimental grating to be superposed with one oblique line;
and determining the actual inclination angle of the experimental grating according to the calibration slope of the oblique line which is superposed with the experimental grating strip.
3. The method for manufacturing a stereoscopic display panel according to claim 2, wherein the step of displaying the oblique line image by the experimental display panel further comprises:
acquiring the initial slope and the inclination angle variable of an inclined line in the inclined line image;
forming a plurality of oblique lines having different slopes on the oblique line image based on the initial slope and the inclination angle variable.
4. The method for manufacturing a stereoscopic display panel according to claim 3, wherein the step of obtaining an initial slope of the oblique line in the oblique line image further comprises:
obtaining a tilt angle design value of the experimental grating;
and determining the initial slope of the oblique line in the oblique line image according to the designed value of the oblique angle of the experimental grating.
5. The method for manufacturing a stereoscopic display panel according to claim 3, wherein the step of forming a plurality of oblique lines having different slopes on the oblique line image based on the initial slope and the tilt angle variable further comprises:
determining an initial inclination angle according to the initial slope;
determining a plurality of slope values according to the initial slope angle and the slope angle variable;
and forming a plurality of inclined lines with different slopes on the inclined line image according to the plurality of slope values.
6. The method of claim 3, wherein the tilt angle variable has a value in a range of 0.01 ° to 0.1 °.
7. The method for manufacturing a stereoscopic display panel according to claim 2, wherein the step of displaying a diagonal mark through the display panel to be mounted further comprises:
and inputting a display instruction to the display panel to be installed so as to enable the display panel to be installed to display the calibration inclined line, wherein the display instruction comprises data of the actual inclined angle, and the inclination of the calibration inclined line is determined according to the actual inclined angle.
8. The method for manufacturing a stereoscopic display panel according to claim 1, wherein the step of covering the barrier to be mounted on the display panel to be mounted further comprises:
and coating a lubricant between the grating to be installed and the display panel to be installed to ensure that the grating to be installed and the display panel to be installed are attached.
9. The method for manufacturing a stereoscopic display panel according to claim 1, wherein the step of fixedly connecting the to-be-mounted grating and the to-be-mounted display panel further comprises:
coating optical cement between the grating to be installed and the display panel to be installed;
and carrying out curing operation on the optical cement to ensure that the grating to be installed is fixedly connected with the display panel to be installed.
10. The method of any one of claims 1 to 9, wherein the marked slope is a single-pixel slope.
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