CN111060291A - Alignment method, brightness determination method and brightness determination device - Google Patents
Alignment method, brightness determination method and brightness determination device Download PDFInfo
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- CN111060291A CN111060291A CN201911381425.0A CN201911381425A CN111060291A CN 111060291 A CN111060291 A CN 111060291A CN 201911381425 A CN201911381425 A CN 201911381425A CN 111060291 A CN111060291 A CN 111060291A
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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Abstract
The invention discloses an alignment method, a brightness determination method and a brightness determination device, wherein a reference line is determined, and when the brightness acquisition device is judged to need to be rotated according to the reference line and an alignment frame preset by the brightness acquisition device, the brightness acquisition device is rotated to complete alignment of a display device.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to an alignment method, a luminance determining method, and a luminance determining device.
Background
At present, there are many kinds of displays, such as a liquid crystal display and an electroluminescent display, wherein the liquid crystal display is a non-self-luminous device, and a backlight module is required to be arranged, and a backlight source provided by the backlight module is used for realizing a display function; the electroluminescent display is a self-luminous device, and can realize functions without a backlight module, so that the electroluminescent display can realize a light and thin design and has important application in many fields.
In order to improve the display effect of the display, the brightness of the display device in the display is usually collected by a demura camera before the factory shipment, and then compensated accordingly according to the collected brightness, so that the display of the display device is more uniform. Before the brightness is collected, the display needs to be placed in a corresponding alignment frame of the demura camera, so that the demura camera can collect the brightness conveniently.
However, if the display is shifted in the position of the alignment frame, that is, when the alignment of the display is not accurate, the brightness of the display may not be effectively acquired by the demura camera, which may result in that the brightness cannot be effectively compensated, and finally the display effect is affected.
Disclosure of Invention
The embodiment of the invention provides an alignment method, a brightness determination method and a brightness determination device, which are used for aligning a display so as to accurately acquire the brightness of the display.
In a first aspect, an embodiment of the present invention provides an alignment method for a display device, including:
determining a reference line in a first picture according to initial brightness of the display equipment when the display equipment displays the first picture, wherein the brightness is acquired by brightness acquisition equipment; wherein the brightness acquisition device is rotatable around a first direction, the first direction being perpendicular to the display device surface; the reference lines are: a straight line connecting the center points of at least two sub-pixels arranged along the column direction or the row direction when the first picture is displayed;
and when the brightness acquisition equipment needs to be rotated according to the reference line and an alignment frame preset by the brightness acquisition equipment, rotating the brightness acquisition equipment to complete alignment of the display equipment.
In a second aspect, an embodiment of the present invention provides a method for determining brightness of a display device, including:
carrying out alignment processing on the display equipment; the alignment processing process is executed by adopting the alignment method provided by the embodiment of the invention;
and determining the brightness of the lighted display equipment after the alignment operation by utilizing brightness acquisition equipment.
In a third aspect, an embodiment of the present invention provides an alignment apparatus for a display device, including:
the first determining unit is used for determining a reference line in a first picture according to the initial brightness of the display equipment when the first picture is displayed, wherein the brightness is acquired by the brightness acquisition equipment; wherein the brightness acquisition device is rotatable around a first direction, the first direction being perpendicular to the display device surface; the reference lines are: a straight line connecting the center points of at least two sub-pixels arranged along the column direction or the row direction when the first picture is displayed;
and the second determining unit is used for rotating the brightness acquisition equipment when judging that the brightness acquisition equipment needs to be rotated according to the reference line and an alignment frame preset by the brightness acquisition equipment so as to complete alignment of the display equipment.
In a fourth aspect, an embodiment of the present invention provides an apparatus for determining brightness of a display device, including:
the alignment processing unit is used for performing alignment processing on the display equipment; the alignment processing process is executed by adopting the alignment method provided by the embodiment of the invention;
and the brightness determining unit is used for determining the brightness of the display equipment which is lighted after the alignment operation by utilizing the brightness acquisition equipment.
In a fifth aspect, an embodiment of the present invention provides a brightness acquiring system, including: luminance collection equipment, the above-mentioned aligning device as provided by the embodiments of the present invention, and the above-mentioned determining device as provided by the embodiments of the present invention.
The invention has the following beneficial effects:
according to the alignment method, the brightness determination method and the brightness determination device provided by the embodiment of the invention, the reference line is determined, and when the brightness acquisition device needs to be rotated is judged according to the reference line and the alignment frame preset by the brightness acquisition device, the brightness acquisition device is rotated to complete alignment of the display device, so that alignment of the display device can be effectively realized, the position of the display device in the alignment frame meets the requirement, the brightness acquisition device can accurately and effectively acquire the brightness of the display device, and the display effect of the display device is improved.
Drawings
FIG. 1 is a schematic structural diagram of a brightness acquisition device;
FIG. 2 is a schematic diagram showing an offset condition of the device;
fig. 3 is a flowchart of an alignment method of a display device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating an embodiment of the present invention when the alignment between the reference line and the alignment frame is not accurate;
FIG. 5 is a schematic diagram illustrating an embodiment of the present invention when the reference line and the alignment frame are aligned accurately;
FIG. 6 is a schematic diagram of the positions of two selected sub-regions provided in the embodiment of the present invention;
FIG. 7 is an enlarged schematic view of two selected subregions of FIG. 6;
fig. 8 is a schematic diagram of positions of four selected sub-regions provided in the embodiment of the present invention;
FIG. 9 is an enlarged schematic view of sub-regions Q1 and Q2 of FIG. 8;
fig. 10 is another schematic diagram of positions of four selected sub-regions provided in the embodiment of the present invention;
fig. 11 is a schematic diagram of a part of sensors in the luminance acquiring apparatus provided in the embodiment of the present invention;
FIG. 12 is a diagram illustrating a special screen according to an embodiment of the present invention;
FIG. 13 is a diagram illustrating a checkerboard image according to an embodiment of the present invention;
FIG. 14 is a diagram of a monochrome picture according to an embodiment of the present invention;
fig. 15 is a flowchart of a luminance determining method provided in an embodiment of the present invention;
fig. 16 is a schematic structural diagram of an alignment apparatus according to an embodiment of the present invention;
fig. 17 is a schematic structural diagram of a luminance determining apparatus according to an embodiment of the present invention;
fig. 18 is a schematic structural diagram of a brightness acquisition system according to an embodiment of the present invention.
Wherein, A-display area, Px1, Px2, Px3, Px4, Px5, Px6, Px 7-sub-pixels, Q1, Q2-sub-areas, a 1-first included angle, a 2-second included angle, 10-reference line, 20-alignment frame, 21-first pair of bit lines, 22-second pair of bit lines, 30-display device, 40, 41, 42, 43, 44, 45, 46, 47, 48, 40a, 40 b-sensor, 51-first straight line, 52-second straight line.
Detailed Description
The following describes in detail specific embodiments of an alignment method, a luminance determining method and a luminance determining apparatus according to embodiments of the present invention with reference to the accompanying drawings. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The inventor has found in research that, at present, when the brightness of the display device 30 is collected by the demura camera 2, the brightness collection device shown in fig. 1 can be used to realize the brightness collection, wherein the demura camera 2 is fixed on the fixed column 1, and the demura camera 2 and the fixed column 1 are both fixed and can not move, if the display device 30 is placed on the operation table 3 and the placement position of the display device 30 is shifted, as shown in the schematic diagram of the display device 30 shifting situation in fig. 2, that is, the angle between the side of the display device 30 and the side of the alignment block (the side indicated by a 1) is larger than 0 and smaller than 90 °, and there is a large deviation between the photographing direction of the demura camera 2 and the direction of the position where the display device 30 is placed, so that the demura camera 2 cannot photograph normally, or the capturing device may generate a warning that it is impossible to take a picture, which may eventually result in failure to capture the brightness of the display apparatus 30.
Based on this, the embodiment of the invention provides an alignment method for a display device, which is used for aligning the display device so as to accurately acquire the brightness of the display device.
Specifically, an embodiment of the present invention provides an alignment method for a display device, and as shown in a flowchart of the alignment method shown in fig. 3, the method may include:
s301, determining a reference line in a first picture according to initial brightness of the display equipment when the first picture is displayed, wherein the brightness is acquired by brightness acquisition equipment; the brightness acquisition equipment can rotate around a first direction, and the first direction is vertical to the surface of the display equipment; the reference lines are: a straight line connecting the center points of at least two sub-pixels arranged along the column direction or the row direction when displaying the first picture;
the display device can be placed on the operating console to display a first picture, the current picture displayed by the display device is photographed by the brightness acquisition device, and then the reference line is determined according to the picture obtained after photographing.
S302, judging whether the brightness acquisition equipment needs to be rotated or not according to the reference line and an alignment frame preset by the brightness acquisition equipment; if yes, executing S303; if not, executing S304;
s303, rotating the brightness acquisition equipment to complete the alignment of the display equipment;
and S304, controlling the brightness acquisition equipment to be maintained at the current position.
In the embodiment of the invention, the reference line is determined, and when the brightness acquisition equipment needs to be rotated according to the reference line and the preset alignment frame of the brightness acquisition equipment, the brightness acquisition equipment is rotated to complete the alignment of the display equipment, so that the alignment of the display equipment can be effectively realized, the position of the display equipment in the alignment frame meets the requirement, the brightness acquisition equipment can accurately and effectively acquire the brightness of the display equipment, and the display effect of the display equipment is improved.
Optionally, in the embodiment of the present invention, the alignment frame and the brightness acquisition device rotate synchronously.
That is, when the luminance collection device rotates, the alignment frame correspondingly rotates, and the luminance collection device rotates by more or less degrees, so the alignment frame correspondingly rotates by more or less degrees, and the rotation directions are the same.
So, can be so that the position of counterpoint frame and luminance collection equipment's position be the one-to-one, and then make and rotate the back to luminance collection equipment, can judge whether counterpoint of display device is accurate according to counterpoint frame and reference line after the rotation to be favorable to luminance collection equipment effectively to gather display device's luminance.
Of course, in specific implementation, the alignment frame and the brightness acquisition device may rotate asynchronously, or the alignment frame may be fixed and cannot rotate, and only the brightness acquisition device may rotate.
At this time, when the brightness acquisition device rotates, the rotation angle may be determined according to the reference line and the preset alignment frame of the brightness acquisition device before the rotation, so as to acquire the brightness of the display device after the brightness acquisition device rotates.
In a specific implementation, in the embodiment of the present invention, whether the brightness acquisition device needs to be rotated is determined according to the reference line and a preset alignment frame of the brightness acquisition device, which specifically includes:
judging whether the first included angle is larger than a preset value or not; the alignment frame comprises a first alignment line and a second alignment line which are perpendicular to each other, in a first plane parallel to the surface of the display device, an included angle between the first alignment line and the reference line is a first included angle, an included angle between the second alignment line and the reference line is a second included angle, and the first included angle is smaller than the second included angle;
if not, determining that the brightness acquisition equipment does not need to be rotated;
and if so, determining that the brightness acquisition equipment needs to be rotated.
For example, as shown in fig. 4, when the alignment between the reference line and the alignment box is not accurate, the alignment box 20 includes a first pair of bit lines 21 and a second pair of bit lines 22, and the first pair of bit lines 21 and the second pair of bit lines 22 are perpendicular to each other, so that the alignment box 20 has a square shape. Of course, in practice, the shape of the alignment frame 20 is not limited to the square shape, and the square shape is only used as an example for explanation here.
In fig. 4, the first included angle a1 is an included angle between the first pair of bit lines 21 and the reference line 10, the second included angle a2 is an included angle between the second pair of bit lines 22 and the reference line 10, and the first included angle a1 is smaller than the second included angle a 2. It should be noted that, in practical situations, the first included angle a1 may be greater than or equal to the second included angle a2, and this is only illustrated by way of example in fig. 4.
If the first included angle a1 is smaller than the second included angle a2, the first included angle a1 can be selected as a reference to be compared with a preset value, so as to determine whether the brightness acquisition equipment needs to be rotated; or, if the first included angle a1 is greater than the second included angle a2, the second included angle a2 may be selected as a reference to be compared with a preset value, so as to determine whether the brightness acquisition device needs to be rotated; or, if the first included angle a1 is equal to the second included angle a2, the first included angle a1 or the second included angle a2 may be selected as a reference to be compared with a preset value, so as to determine whether the brightness acquiring apparatus needs to be rotated.
That is to say, first contained angle a1 is different with second contained angle a2, can select less contained angle as the reference, so that when needs rotatory luminance collection equipment, can make luminance collection equipment rotatory less angle can realize display device's counterpoint, avoid appearing the inaccurate problem of counterpoint that rotatory angle is not enough or rotatory angle is too big to cause because of rotatory great angle when rotatory great angle, and then avoid needing many times rotatory luminance collection equipment just can accomplish the condition appearance of counterpointing, thereby improve display device's counterpoint accuracy and counterpoint efficiency.
Optionally, in the embodiment of the present invention, when the luminance collection device is rotated, the first angle is rotated in a direction pointing from the reference line to the first pair of bit lines.
So, be favorable to controlling luminance collection equipment's the rotational accuracy degree, required time when can also reducing luminance collection equipment simultaneously is rotatory to improve the accuracy and the efficiency of counterpointing.
Optionally, in an embodiment of the present invention, after rotating the brightness acquiring device, the method further includes:
verifying whether the first included angle is larger than a preset value after the brightness acquisition equipment rotates according to a preset condition;
if not, determining that the alignment of the display equipment is finished;
if so, continuing to rotate the brightness acquisition equipment according to the reference line and the alignment frame until the first included angle is not larger than the preset value.
That is, in order to determine whether the display device is aligned accurately after the brightness acquisition device is rotated, the position of the display device may be calibrated after the brightness acquisition device is rotated, wherein the calibration may be performed by verifying whether the first included angle is greater than a preset value after the brightness acquisition device is rotated according to a preset condition.
Specifically, if the verification result is: after the brightness acquisition equipment rotates, the first included angle is larger than a preset value, which indicates that the display equipment still has inaccurate current alignment due to insufficient rotation angle or too large rotation angle of the brightness acquisition equipment, so that the brightness acquisition equipment needs to continue to rotate according to the reference line and the current position of the alignment frame until the first included angle is smaller than or equal to the preset value after the brightness acquisition equipment rotates, and alignment of the display equipment is completed;
if the verification result is: after the brightness acquisition device rotates, the first included angle is not greater than the preset value, which indicates that the brightness acquisition device has rotated by a proper angle, so that the display device is currently in an accurate alignment state, for example, the structure shown in fig. 4 may be understood as a case where the first included angle a1 is greater than the preset value before rotation, the schematic diagram of fig. 5 when the reference line and the alignment frame are aligned accurately may be understood as a case where the first included angle a1 is not greater than the preset value after rotation, and it may be determined that the alignment of the display device is completed at this time, so that the brightness of the display device is acquired by the subsequent brightness acquisition device.
Of course, optionally, the structure shown in fig. 5 is a case where the first included angle a1 is 0 ° after the alignment frame rotates along with the brightness acquisition device, which is an ideal case, but is not limited thereto, as long as the first included angle a1 is not greater than the preset value after the rotation.
Optionally, in the embodiment of the present invention, the preset condition is:
the brightness acquisition equipment comprises a plurality of sensors which are arranged in an array, the sensors are arranged corresponding to the W sub-pixels, when M sub-regions are selected from a display picture obtained by photographing through the brightness acquisition equipment, the sensors in each sub-region are arranged in the same row or the same column, and after the M sub-regions are amplified and spliced along the second direction, the first lengths along the third direction are equal;
wherein, the second direction is in the coplanar and mutually perpendicular with the third direction, and first length is: acquiring the distance between two sensors with the farthest distance in each sensor with the sub-pixel brightness;
m and W are integers larger than 1, and the number of sensors in each subarea is the same.
Wherein, taking the value of M as 2, and each selected sub-area includes 2 rows and 2 columns of sensors as an example, then:
the sensor arrangement in two subregions in parallel can be understood as:
wherein the first row of sensors in one sub-area is in the same row as the first row of sensors in another sub-area, and wherein the second row of sensors in one sub-area is in the same row as the second row of sensors in another sub-area;
the sensor column arrangement in the two subregions can be understood as follows:
wherein the first column of sensors in one sub-area is in the same column as the first column of sensors in another sub-area, and wherein the second column of sensors in one sub-area is in the same column as the second column of sensors in another sub-area.
Because the sensors in each sub-area are arranged in the same row or column, whether the rotated sub-areas meet the preset conditions can be accurately judged through the selected sub-areas, and the condition after rotation is calibrated.
For example, a schematic diagram of the positions of the two selected sub-regions as shown in fig. 6; the two sub-regions are respectively denoted by Q1 and Q2, referring to the enlarged schematic diagram of the two sub-regions selected from fig. 6 shown in fig. 7, the sub-region Q1 and the sub-region Q2 are enlarged and then spliced along the F2 direction (i.e., the second direction), and the first length h1 corresponding to the sub-region Q1 is: along the F3 direction (i.e. the third direction), and the distance between the two sensors (e.g. 41 and 42) which are the farthest from each other in the sensors acquiring the brightness, the first length h2 corresponding to the sub-region Q2 is: the distance between the two sensors (e.g., 43 and 44) which are farthest from each other in the sensors for collecting the brightness, which are arranged along the direction F3 (i.e., the third direction), is h1 not equal to h 2.
Obviously, if the two sub-areas in the display image shot by the rotation of the brightness acquisition device show the situation in fig. 7, it is described that the situation after the rotation of the brightness acquisition device does not satisfy the preset condition, that is, the alignment of the display device is still inaccurate, and as shown in fig. 6, the brightness acquisition device needs to be continuously rotated.
Referring to a schematic diagram of the positions of the four selected sub-regions shown in fig. 8, that is, a schematic diagram of the sub-regions in accurate alignment, where two sub-regions are also denoted by Q1 and Q2, respectively, see fig. 9 showing an enlarged schematic diagram of the sub-regions Q1 and Q2 in fig. 8, where the first length h3 corresponding to the sub-region Q1 is: along the F3 direction (i.e. the third direction), and the distance between the two sensors (e.g. 45 and 46) which are the farthest from each other in the sensors acquiring the brightness, the first length h4 corresponding to the sub-region Q2 is: and h3 is equal to h4, which is the distance between the two sensors (e.g., 47 and 48) which are farthest from each other among the sensors for collecting the brightness, and is arranged along the direction F3 (i.e., the third direction).
Obviously, if the two sub-areas in the display image photographed by the rotated brightness acquisition device show the situation in fig. 9, it is shown that the situation after the rotation of the brightness acquisition device meets the preset condition, that is, the display device is aligned accurately, as shown in fig. 8.
It should be noted that the value of M may be other values such as 2 (as shown in fig. 6), 3 (not shown), 4 (as shown in fig. 8), or 5 (not shown), and may be set according to actual needs as long as it can be determined by each sensor in M sub-regions whether the rotated condition of the brightness acquisition device satisfies the preset condition, and the specific value of M is not limited herein.
And the value of W may be set according to the manufacturing cost and the manufacturing accuracy of the brightness acquisition device, for example, but not limited to, the value of W is 9.
Optionally, in the embodiment of the present invention, when the display screen has a plurality of corners, some of the sub-regions may be disposed near the corners (e.g., the sub-regions Q1 and Q2 in fig. 8), and some of the sub-regions may be disposed near the non-corner positions (e.g., the sub-regions Q3 and Q4 in fig. 8), where the sub-regions disposed near the non-corner positions are not limited to the positions shown in fig. 8, and may be disposed at other positions, which are not limited herein.
Of course, it can also be provided that: the sub-regions are respectively disposed near different corners, as shown in another schematic diagram of the positions of the selected four sub-regions shown in fig. 10, the display device 30 has four corners, and the four sub-regions (e.g., Q1, Q2, Q3, and Q4) are respectively disposed near the corners.
So set up, make:
if the reference line of the display device is not aligned with the alignment frame accurately, the position deviation condition of the display device can be reflected through each corner of the display device.
That is, if the selected sub-regions are not located near the corners, if the selected sub-regions are located near the center of the display device, even if the alignment between the reference line and the alignment frame is not accurate, the first lengths corresponding to the selected sub-regions may be the same, and it is difficult to determine the offset between the reference line and the alignment frame.
If the selected sub-regions are all arranged close to the corners, even if the alignment between the reference line and the alignment frame is not accurate (for example, the first included angle between the reference line and the first alignment line is greater than the preset value), the first lengths corresponding to the selected sub-regions are different, and the offset condition between the reference line and the alignment frame can be accurately determined.
Therefore, when M sub-regions are selected from positions close to corners, whether the alignment frame rotates along with the brightness acquisition equipment or not and whether the reference line is aligned with the rotated alignment frame is accurate or not can be judged according to whether the first lengths of the M sub-regions are equal or not, and therefore verification is achieved after the brightness acquisition equipment rotates.
Optionally, in an embodiment of the present invention, the preset value is an included angle between a first straight line and a second straight line, where the brightness acquisition device includes a plurality of sensors arranged in an array, and each sensor corresponds to a plurality of sub-pixels; the first straight line is the straight line that any row of sensor was located, and the second straight line is: and a straight line on which a connecting line between the center of the sensor positioned in the first row and the nth column and the center of the sensor positioned in the last row and the (n + 2) th column is positioned.
For example, as shown in fig. 11, in the schematic diagram of the partial sensors in the luminance collection device, each small square represents one sensor, the first straight line is represented by a dotted line 51, the second straight line is represented by a dotted line 52, and the second straight line 52 is: the line shown between the center V1 of the sensor 40a in the first row and column, and the center V2 of the sensor 40b in the last row and column; the included angle between the first straight line 51 and the second straight line 52 is a0, and the included angle a0 is represented as a preset value.
Certainly, in an actual situation, the selection of the preset value is not limited to the above manner, and may also be set in other manners according to the actual situation, as long as the first included angle after the rotation of the brightness acquisition device is not greater than the preset value, and the brightness of the display device is extracted by the brightness acquisition device, which all belong to the technical scope to be protected by the embodiments of the present invention.
In practical implementation, in the embodiment of the present invention, each sub-pixel forming the reference line further needs to satisfy the following condition:
the relative deviation of the luminance of each sub-pixel forming the reference line is less than a preset luminance threshold.
Taking the N sub-pixels forming the reference line as an example, where the sub-pixel with the highest brightness is labeled as P1 and the sub-pixel with the lowest brightness is labeled as P2, the following conditions should be satisfied:
the ratio of the luminance difference between the sub-pixel P1 and the sub-pixel P2 to the luminance of the sub-pixel P1 is smaller than a preset luminance threshold;
alternatively, the ratio of the luminance difference between the sub-pixel P1 and the sub-pixel P2 to the luminance of the sub-pixel P2 is smaller than the preset luminance threshold.
That is, the smaller the relative deviation of the luminance of each sub-pixel forming the reference line is, the closer the luminance of each sub-pixel forming the reference line is, and at this time, when the reference line is determined, it is easier to select each sub-pixel forming the reference line, so that the determined reference line is more accurate, and meanwhile, the determination of the reference line is also faster and more effective, thereby improving the alignment efficiency and accuracy of the display device.
Optionally, in the embodiment of the present invention, the colors and the gray scales corresponding to the sub-pixels forming the reference line are the same;
or, the colors of some sub-pixels in each sub-pixel forming the reference line are different, and the relative deviation of the luminance of two sub-pixels with different colors is smaller than the preset luminance threshold.
That is to say, regardless of whether the color of each sub-pixel forming the reference line is the same or not, it is only necessary to control the gray scale of each sub-pixel to ensure that the relative deviation of the luminance of each sub-pixel is smaller than the preset luminance threshold, so that the method is not only beneficial to quickly and effectively determining the reference line and further judging whether the alignment of the display device is accurate, but also can determine the reference line according to the actually lit sub-pixel in the display device, thereby improving the flexibility of determining the reference line.
Optionally, in an embodiment of the present invention, the preset brightness threshold is 50%.
Of course, the value of the preset brightness threshold is not limited to the above limitation, and may be other values set according to actual needs, so as to meet the needs of various application scenarios, and improve the flexibility of design.
Optionally, in an embodiment of the present invention, the first screen includes: any one of a monochrome picture, a checkerboard picture or a special picture;
wherein, the special pictures are: and (3) lighting N sub-pixels arranged in the same column or the same row, wherein N is an integer larger than 1.
For example, as shown in fig. 12, a represents a display area, Px represents a sub-pixel, and only a part of sub-pixels in the display area a are shown in the figure, squares filled with oblique lines represent sub-pixels which are not lighted, squares filled with dense black dots represent sub-pixels which are lighted, for example, Px1 and Px2 represent two sub-pixels which are lighted, and the two sub-pixels are located in the same column, that is, the value of N is 2; at this time, a straight line connecting the center points of the subpixel Px1 and the subpixel Px2 is a reference line and is indicated by a dotted line 10.
Of course, the value of N is not limited to 2, and may be other values such as 3, 4, or 5, as long as the reference line can be determined, and the specific value of N is not limited herein.
The special screen is not limited to that shown in fig. 12, and is only illustrated as an example in fig. 12, and in an actual case, the special screen may be any screen that can specify a reference line, and is not limited herein.
For another example, as shown in fig. 13, which is a schematic diagram of a checkerboard picture, only a part of the sub-pixels are shown in the diagram, the black filled square represents the sub-pixels which are not lighted, and the white filled square represents the sub-pixels which are lighted, where Px3, Px4, and Px5 represent three of the lighted sub-pixels respectively, and the three sub-pixels are located in the same column, i.e., N has a value of 3; at this time, a straight line connecting the center points of the subpixel Px3, the subpixel Px4, and the subpixel Px5 is a reference line, and is indicated by a dotted line 10.
Furthermore, a monochrome picture can be understood as: the specific color of the image displayed when at least some of the sub-pixels with the same color in the display device are lit is not particularly limited.
For example, but not limiting of, the monochrome picture schematic shown in fig. 14, only a portion of the subpixels are shown, and all of the red subpixels R are illuminated in the figure, and the remaining color subpixels are not illuminated. At this time, two subpixels in the same way, such as Px6 and Px7, can be selected, and a straight line connecting the center points of the subpixel Px6 and the subpixel Px7 is referred to as a reference line 10.
Therefore, the reference line can be accurately and effectively determined by setting the first picture, the requirements of various application scenes can be met, and the design flexibility is improved.
It should be noted that, optionally, in the embodiment of the present invention, the shape of the display device is not limited to the rounded rectangle shown in fig. 4 and fig. 5, and may also be other shapes, such as but not limited to a circle (not shown), an ellipse (not shown), or other special shapes (not shown), as long as the reference line can be determined, and then the alignment of the display device is realized through the positional relationship between the reference line and the alignment frame, and through the rotatable brightness acquisition device, and the shape of the display device is not particularly limited.
Optionally, in this embodiment of the present invention, the display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. The specific structure of the display device can be referred to in the prior art, and is not described in detail herein.
Based on the same inventive concept, an embodiment of the present invention provides a method for determining brightness of a display device, and as shown in a flowchart of a brightness determination method shown in fig. 15, the method may include:
s1501, carrying out alignment processing on the display equipment;
wherein, the alignment processing process is executed by the alignment method provided by the embodiment of the invention;
and S1502, determining the brightness of the lighted display equipment after the alignment operation by utilizing brightness acquisition equipment.
Therefore, when the brightness is determined by the brightness acquisition equipment after the alignment processing is carried out on the display equipment, the brightness of each sub-pixel in the display equipment can be accurately and effectively acquired through the brightness acquisition equipment, so that the compensation processing is carried out on the sub-pixels according to the acquired brightness of each sub-pixel, and the display effect of the display equipment is improved.
Based on the same inventive concept, an embodiment of the present invention provides an alignment apparatus for a display device, where as shown in fig. 16, a schematic structural diagram of the alignment apparatus may include:
the first determining unit 1601 is configured to determine a reference line in the first picture according to initial brightness, acquired by the brightness acquisition device, of the display device when the first picture is displayed; the brightness acquisition equipment can rotate around a first direction, and the first direction is vertical to the surface of the display equipment; the reference lines are: a straight line connecting the center points of at least two sub-pixels arranged along the column direction or the row direction when displaying the first picture;
the second determining unit 1602, configured to determine that the brightness acquiring device needs to be rotated according to the reference line and the preset alignment frame of the brightness acquiring device, rotate the brightness acquiring device, and complete alignment of the display device.
Optionally, in this embodiment of the present invention, the second determining unit 1602 is specifically configured to:
judging whether the first included angle is larger than a preset value or not; the alignment frame comprises a first alignment line and a second alignment line which are perpendicular to each other, in a first plane parallel to the surface of the display device, an included angle between the first alignment line and the reference line is a first included angle, an included angle between the second alignment line and the reference line is a second included angle, and the first included angle is smaller than the second included angle;
if not, determining that the brightness acquisition equipment does not need to be rotated;
and if so, determining that the brightness acquisition equipment needs to be rotated.
Optionally, in this embodiment of the present invention, the second determining unit 1602 is further configured to:
after the brightness acquisition equipment is rotated, verifying whether a first included angle is larger than a preset value after the brightness acquisition equipment is rotated according to a preset condition;
if not, determining that the alignment of the display equipment is finished;
if so, continuing to rotate the brightness acquisition equipment according to the reference line and the alignment frame until the first included angle is not larger than the preset value.
Based on the same inventive concept, an embodiment of the present invention provides a device for determining luminance of a display apparatus, and a schematic structural diagram of the luminance determining device shown in fig. 17 may include:
an alignment processing unit 1701 for performing alignment processing on the display device; the alignment processing process is executed by adopting the alignment method provided by the embodiment of the invention;
a brightness determining unit 1702, configured to determine, by using a brightness acquiring device, the brightness of the display device that is lighted after the alignment operation.
Based on the same inventive concept, an embodiment of the present invention provides a brightness acquisition system, as shown in fig. 18, a schematic structural diagram of a brightness acquisition system 1800, including: the brightness acquisition device 1801, the alignment apparatus 1802 provided in the embodiment of the present invention, and the determination apparatus 1803 provided in the embodiment of the present invention.
Optionally, in the embodiment of the present invention, the brightness acquiring device may be a demura camera, or another device that can achieve brightness acquisition, which is not limited herein.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (16)
1. An alignment method for a display device, comprising:
determining a reference line in a first picture according to initial brightness of the display equipment when the display equipment displays the first picture, wherein the brightness is acquired by brightness acquisition equipment; wherein the brightness acquisition device is rotatable around a first direction, the first direction being perpendicular to the display device surface; the reference lines are: a straight line connecting the center points of at least two sub-pixels arranged along the column direction or the row direction when the first picture is displayed;
and when the brightness acquisition equipment needs to be rotated according to the reference line and an alignment frame preset by the brightness acquisition equipment, rotating the brightness acquisition equipment to complete alignment of the display equipment.
2. The alignment method according to claim 1, wherein the alignment frame is rotated in synchronization with the luminance acquiring device.
3. The method of claim 1, wherein each of the sub-pixels forming the reference line further satisfies the following condition:
the relative deviation of the brightness of each sub-pixel forming the reference line is smaller than a preset brightness threshold value.
4. The alignment method as claimed in claim 3, wherein the sub-pixels forming the reference line have the same color and the same gray scale;
or, the colors of some sub-pixels in each sub-pixel forming the reference line are different, and the relative deviation of the luminance of two sub-pixels with different colors is smaller than a preset luminance threshold.
5. The alignment method as claimed in claim 3, wherein the predetermined brightness threshold is 50%.
6. The method of aligning according to claim 1, wherein the first picture comprises: any one of a monochrome picture, a checkerboard picture or a special picture;
wherein the special picture is as follows: and (3) lighting N sub-pixels arranged in the same column or the same row, wherein N is an integer larger than 1.
7. The alignment method according to claim 1, wherein determining whether the brightness acquisition device needs to be rotated according to the reference line and an alignment frame preset by the brightness acquisition device comprises:
judging whether the first included angle is larger than a preset value or not; the alignment frame comprises a first alignment line and a second alignment line which are perpendicular to each other, in a first plane parallel to the surface of the display device, an included angle between the first alignment line and the reference line is a first included angle, an included angle between the second alignment line and the reference line is a second included angle, and the first included angle is smaller than the second included angle;
if not, determining that the brightness acquisition equipment does not need to be rotated;
and if so, determining that the brightness acquisition equipment needs to be rotated.
8. The alignment method as claimed in claim 7, wherein the first angle is rotated in a direction from the reference line to the first pair of bit lines while the luminance collection device is rotated.
9. The alignment method according to claim 7, further comprising, after rotating the brightness acquisition device:
verifying whether the first included angle is larger than a preset value after the brightness acquisition equipment rotates according to a preset condition;
if not, determining to finish the alignment of the display equipment;
if so, continuing to rotate the brightness acquisition equipment according to the reference line and the alignment frame until the first included angle is not larger than the preset value.
10. The alignment method as claimed in claim 9, wherein the predetermined condition is:
the brightness acquisition equipment comprises a plurality of sensors which are arranged in an array, the sensors are arranged corresponding to the W sub-pixels, when M sub-regions are selected from a display picture obtained by photographing through the brightness acquisition equipment, the sensors in each sub-region are arranged in the same row or the same column, and after the M sub-regions are amplified and spliced along the second direction, the first lengths along the third direction are equal;
wherein the second direction and the third direction are in the same plane and perpendicular to each other, and the first length is: acquiring the distance between two sensors with the farthest distance in each sensor of the sub-pixel brightness;
m and W are both integers greater than 1, and the number of sensors in each sub-region is the same.
11. The alignment method according to claim 10, wherein the display frame has a plurality of corners, and each of the sub-regions is disposed adjacent to a different one of the corners.
12. The alignment method according to any one of claims 7 to 11, wherein the preset value is an included angle between a first straight line and a second straight line, wherein the brightness acquisition device comprises a plurality of sensors arranged in an array, and each sensor corresponds to a plurality of the sub-pixels; the first straight line is a straight line where any row of sensors are located, and the second straight line is as follows: and a straight line where a connecting line between the center of the sensor located in the first row and the nth column and the center of the sensor located in the last row and the (n + 2) th column is located.
13. A method for determining brightness of a display device, comprising:
carrying out alignment processing on the display equipment; the alignment treatment process is carried out by using the alignment method according to any one of claims 1 to 12;
and determining the brightness of the lighted display equipment after the alignment operation by utilizing brightness acquisition equipment.
14. An alignment apparatus for a display device, comprising:
the first determining unit is used for determining a reference line in a first picture according to the initial brightness of the display equipment when the first picture is displayed, wherein the brightness is acquired by the brightness acquisition equipment; wherein the brightness acquisition device is rotatable around a first direction, the first direction being perpendicular to the display device surface; the reference lines are: a straight line connecting the center points of at least two sub-pixels arranged along the column direction or the row direction when the first picture is displayed;
and the second determining unit is used for rotating the brightness acquisition equipment when judging that the brightness acquisition equipment needs to be rotated according to the reference line and an alignment frame preset by the brightness acquisition equipment so as to complete alignment of the display equipment.
15. An apparatus for determining brightness of a display device, comprising:
the alignment processing unit is used for performing alignment processing on the display equipment; the alignment treatment process is carried out by using the alignment method according to any one of claims 1 to 12;
and the brightness determining unit is used for determining the brightness of the display equipment which is lighted after the alignment operation by utilizing the brightness acquisition equipment.
16. A brightness acquisition system, comprising: luminance collection apparatus, alignment device according to claim 14, and determination device according to claim 15.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113934028A (en) * | 2021-10-21 | 2022-01-14 | 京东方科技集团股份有限公司 | Display panel alignment detection jig and alignment detection method |
| WO2024000898A1 (en) * | 2022-06-30 | 2024-01-04 | 昆山国显光电有限公司 | Alignment method for display panel, and gamma debugging method and apparatus for display panel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063016A (en) * | 2009-11-16 | 2011-05-18 | 优志旺电机株式会社 | Aligning mark detecting method |
| KR101374989B1 (en) * | 2006-12-27 | 2014-03-17 | 엘지디스플레이 주식회사 | Mura detecting device and method driving of the same |
| CN103792668A (en) * | 2012-06-13 | 2014-05-14 | 群创光电股份有限公司 | Switchable two-dimensional/three-dimensional display apparatus and manufacturing method thereof |
| CN107086021A (en) * | 2017-04-20 | 2017-08-22 | 京东方科技集团股份有限公司 | The mura compensation systems and method of display screen |
| CN108492776A (en) * | 2018-03-29 | 2018-09-04 | 苏州佳智彩光电科技有限公司 | A kind of AMOLED screens brightness disproportionation intelligent external optical compensation method |
| CN110232713A (en) * | 2019-06-13 | 2019-09-13 | 腾讯数码（天津）有限公司 | A kind of image object positioning correction method and relevant device |
| CN110443857A (en) * | 2019-08-21 | 2019-11-12 | 苏州精速智能科技有限公司 | The calibration of 5 camera straight lines of one kind and alignment method |
-
2019
- 2019-12-27 CN CN201911381425.0A patent/CN111060291B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101374989B1 (en) * | 2006-12-27 | 2014-03-17 | 엘지디스플레이 주식회사 | Mura detecting device and method driving of the same |
| CN102063016A (en) * | 2009-11-16 | 2011-05-18 | 优志旺电机株式会社 | Aligning mark detecting method |
| CN103792668A (en) * | 2012-06-13 | 2014-05-14 | 群创光电股份有限公司 | Switchable two-dimensional/three-dimensional display apparatus and manufacturing method thereof |
| CN107086021A (en) * | 2017-04-20 | 2017-08-22 | 京东方科技集团股份有限公司 | The mura compensation systems and method of display screen |
| CN108492776A (en) * | 2018-03-29 | 2018-09-04 | 苏州佳智彩光电科技有限公司 | A kind of AMOLED screens brightness disproportionation intelligent external optical compensation method |
| CN110232713A (en) * | 2019-06-13 | 2019-09-13 | 腾讯数码（天津）有限公司 | A kind of image object positioning correction method and relevant device |
| CN110443857A (en) * | 2019-08-21 | 2019-11-12 | 苏州精速智能科技有限公司 | The calibration of 5 camera straight lines of one kind and alignment method |
Non-Patent Citations (1)
| Title |
|---|
| 赵伶俐 等: "直线特征标志子像素级定位方法的研究", 《测绘工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113934028A (en) * | 2021-10-21 | 2022-01-14 | 京东方科技集团股份有限公司 | Display panel alignment detection jig and alignment detection method |
| CN113934028B (en) * | 2021-10-21 | 2023-11-03 | 京东方科技集团股份有限公司 | Alignment detection jig and alignment detection method for display panel |
| WO2024000898A1 (en) * | 2022-06-30 | 2024-01-04 | 昆山国显光电有限公司 | Alignment method for display panel, and gamma debugging method and apparatus for display panel |
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|---|---|
| CN111060291B (en) | 2021-09-17 |
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