CN115019745B - Voltage determination method and voltage determination device - Google Patents
Voltage determination method and voltage determination device Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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Abstract
The application provides a voltage determination method and a voltage determination device, the method only needs to obtain n first optical data of a main pixel area through experiments, n second optical data of an auxiliary pixel area can be obtained through calculation directly according to the area ratio of the main pixel area and the auxiliary pixel area, m total optical data of sub-pixels can be obtained through calculation, m groups of test performance data can be obtained through direct simulation according to all the total optical data after the total optical data are obtained, finally, required target test performance data are selected, and finally, required target gamma voltage and target sharing voltage can be determined.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a voltage determining method and a voltage determining device.
Background
With the rapid development of panel technology, industry has put higher demands on characteristics such as panel viewing angle. For a liquid crystal display panel in a Vertical Alignment (VA) display mode, each sub-pixel is generally set to 8 domains in total in two parts in a main pixel region and an auxiliary pixel region to increase a viewing angle, each sub-pixel displays by gamma voltages, and further adjusts a liquid crystal deflection angle of the auxiliary pixel region by adjusting a sharing voltage of the auxiliary pixel region, that is, SHB voltage to compensate for brightness and chromaticity of a large viewing angle. Because the influence rule and the improvement effect of the shared voltage on the visual angle are tentatively unknown, and the penetration rate of the display screen also changes after the shared voltage changes, when the numerical values of the gamma voltage and the shared voltage are currently set, the visual angle and the penetration rate under the combination of different gamma voltages and the shared voltage are obtained through the actual measurement of an experimental method, and then a group of voltages with comprehensive data meeting the requirement are selected, but the mode has higher manpower and time cost and lower efficiency.
Therefore, the conventional liquid crystal display panel has a technical problem that efficiency is low when a voltage satisfying a viewing angle condition is determined, and improvement is required.
Disclosure of Invention
The embodiment of the application provides a voltage determining method and a voltage determining device, which are used for solving the technical problem that the efficiency is low when the voltage meeting the viewing angle condition is determined in the conventional liquid crystal display panel.
The embodiment of the application provides a voltage determination method which is applied to a liquid crystal display panel, wherein the liquid crystal display panel comprises a plurality of sub-pixels, each sub-pixel comprises a main pixel area and an auxiliary pixel area, and the voltage determination method comprises the following steps:
when each sub-pixel in the liquid crystal display panel displays preset gray scale, n first optical data of the main pixel area when the main pixel area is controlled by n gamma voltages respectively are obtained, wherein n is an integer larger than 1;
acquiring the area ratio of the main pixel area to the auxiliary pixel area, taking the n gamma voltages as n shared voltages respectively, and obtaining n second optical data of the auxiliary pixel area when the auxiliary pixel area is controlled by the n shared voltages respectively according to the n first optical data and the area ratio when each sub-pixel in the liquid crystal display panel displays the preset gray scale;
According to the n first optical data and the n second optical data, obtaining m total optical data when each sub-pixel in the liquid crystal display panel displays the preset gray scale and is controlled by gamma voltage and shared voltage, wherein m is an integer larger than 1;
according to the m total optical data, m groups of test performance data of the liquid crystal display panel are obtained through simulation, wherein the test performance data comprise visual angle data and transmittance data;
and determining required target test performance data from the m groups of test performance data, determining target gamma voltages from the n gamma voltages according to the target test performance data, and determining target shared voltages from the n shared voltages.
In one embodiment, the first optical data, the second optical data, and the total optical data each comprise tristimulus values.
In one embodiment, when each sub-pixel in the liquid crystal display panel displays a preset gray scale, the step of acquiring n first optical data of the main pixel area when the main pixel area is controlled by n gamma voltages respectively includes:
inputting preset gray scale voltage, gamma voltage and initial sharing voltage to the liquid crystal display panel so that each main pixel area displays preset gray scale and each auxiliary pixel area has brightness of 0, and k preset pictures are obtained, wherein k is a positive integer;
And when each gamma voltage is input, respectively acquiring a tristimulus value of a target area of the liquid crystal display panel under a first visual angle and a tristimulus value of the target area under a second visual angle when each preset picture is displayed, and obtaining first optical data.
In one embodiment, the step of obtaining the area ratio of the main pixel area and the auxiliary pixel area, and taking the n gamma voltages as n shared voltages respectively, and obtaining n second optical data of the auxiliary pixel area when each sub-pixel in the liquid crystal display panel displays the preset gray scale according to the n first optical data and the area ratio, where the n second optical data are controlled by the n shared voltages respectively includes:
acquiring the area ratio of the main pixel area to the auxiliary pixel area;
dividing the tristimulus values of the first optical data with the area ratio to obtain the tristimulus values of the second optical data.
In one embodiment, the step of obtaining m total optical data of each sub-pixel in the liquid crystal display panel when displaying the preset gray scale and controlled by the gamma voltage and the shared voltage according to the n first optical data and the n second optical data includes:
Obtaining a first data set according to the n first optical data, and obtaining a second data set according to the n second optical data;
traversing and combining the ith first optical data in the first data set and the jth second optical data in the second data set to obtain m total optical data when each sub-pixel in the liquid crystal display panel displays the preset gray scale and is controlled by the ith gamma voltage and the jth sharing voltage, wherein i and j are integers, i is more than or equal to 1 and less than or equal to n, and j is more than or equal to 1 and less than or equal to n.
In one embodiment, the step of traversing and combining the ith first optical data in the first data set and the jth second optical data in the second data set to obtain m total optical data when each sub-pixel in the liquid crystal display panel displays the preset gray scale and is controlled by the ith gamma voltage and the jth shared voltage simultaneously includes:
and superposing the tristimulus values of the ith first optical data and the jth second optical data respectively to obtain the tristimulus values of the corresponding total optical data.
In one embodiment, the viewing angle data includes a sai viewing angle data and/or a VAI viewing angle data, and the step of obtaining m sets of test performance data of the liquid crystal display panel through simulation according to the m total optical data includes:
Converting the tristimulus values under the first visual angle into first color coordinates in a preset chromaticity space and converting the tristimulus values under the second visual angle into second color coordinates in the preset chromaticity space in the total optical data of each preset picture;
and obtaining the visual angle data according to the first color coordinates and the second color coordinates.
In one embodiment, the transmittance data includes white frame transmittance data, the preset frame is a white frame, and the step of obtaining m groups of test performance data of the liquid crystal display panel through simulation according to the m total optical data includes:
obtaining the actual brightness of the white picture according to the total optical data of the white picture;
and obtaining the white picture transmittance data according to the actual brightness and the ideal brightness of the white picture.
In one embodiment, the step of determining the required target test performance data from the m sets of test performance data comprises:
acquiring expected performance data;
and comparing the m groups of test performance data with the expected performance data, and determining target test performance data from the m groups of test performance data according to a comparison result.
The application also provides a voltage determining device applied to a liquid crystal display panel, the liquid crystal display panel comprises a plurality of sub-pixels, the sub-pixels comprise a main pixel area and an auxiliary pixel area, and the voltage determining device comprises:
A first obtaining module, configured to obtain n first optical data of the main pixel area when each sub-pixel in the liquid crystal display panel is controlled by n gamma voltages respectively when each sub-pixel displays a preset gray level, where n is an integer greater than 1;
the second acquisition module acquires the area ratio of the main pixel area and the auxiliary pixel area, takes the n gamma voltages as n shared voltages respectively, and obtains n second optical data when the auxiliary pixel area is controlled by the n shared voltages respectively according to the n first optical data and the area ratio when each sub-pixel in the liquid crystal display panel displays the preset gray scale;
the obtaining module is used for obtaining m total optical data when each sub-pixel in the liquid crystal display panel displays the preset gray scale and is controlled by gamma voltage and shared voltage according to the n first optical data and the n second optical data, wherein m is an integer larger than 1;
the simulation module is used for obtaining m groups of test performance data of the liquid crystal display panel in a simulation mode according to the m total optical data, wherein the test performance data comprise visual angle data and transmittance data;
and the determining module is used for determining required target test performance data from the m groups of test performance data, determining target gamma voltages from the n gamma voltages according to the target test performance data, and determining target shared voltages from the n shared voltages.
The beneficial effects are that: the application provides a voltage determining method and a voltage determining device, which are applied to a liquid crystal display panel, wherein the liquid crystal display panel comprises a plurality of sub-pixels, each sub-pixel comprises a main pixel region positioned in the main pixel region and an auxiliary pixel region positioned in the auxiliary pixel region, when each sub-pixel in the liquid crystal display panel displays preset gray scale, n first optical data of the main pixel region when being controlled by n gamma voltages respectively are acquired, n is an integer greater than 1, then the area ratio of the main pixel region and the auxiliary pixel region is acquired, n gamma voltages are respectively used as n shared voltages, n second optical data of the auxiliary pixel region when being controlled by n shared voltages are acquired according to the n first optical data and the area ratio, and then m total optical data of each sub-pixel in the liquid crystal display panel are acquired when the preset gray scale is displayed according to the n first optical data and the n second optical data, m total optical data are simultaneously controlled by gamma voltages and the shared voltages respectively, m total optical data are larger than 1 total gamma voltage respectively, m total optical data are acquired from the gamma voltage group performance test target performance test data, and the gamma performance is determined from the test target group test data. According to the application, n first optical data of the main pixel area are obtained only through experiments, n second optical data of the auxiliary pixel area can be obtained through calculation directly according to the area ratio of the main pixel area to the auxiliary pixel area, m total optical data of the sub-pixel are obtained through calculation, after the total optical data are obtained, m groups of test performance data can be obtained through direct simulation according to the total optical data, finally, required target test performance data are selected, and finally, required target gamma voltage and target sharing voltage can be determined.
Drawings
The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic plan view of a prior art voltage determining method.
Fig. 2 is a flowchart of a voltage determining method according to an embodiment of the application.
Fig. 3 is a schematic plan view of a sub-pixel according to an embodiment of the application.
Fig. 4 is a schematic diagram of a process for acquiring total optical data according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a voltage determining device according to an embodiment of the application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless explicitly specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first feature and the second feature being in direct contact, and may also include both the first feature and the second feature not being in direct contact but being in contact with each other by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
The embodiment of the application provides a voltage determining method and a voltage determining device, which are used for solving the technical problem that the efficiency is low when the voltage meeting the viewing angle condition is determined in the conventional liquid crystal display panel.
As shown in fig. 1, the voltage determining method of the present application is applied to a liquid crystal display panel including a plurality of sub-pixels including a main pixel region and a sub-pixel region, the method comprising the steps of:
s1: when each sub-pixel in the liquid crystal display panel displays a preset gray scale, n first optical data of the main pixel area when the main pixel area is controlled by n gamma voltages respectively are obtained, wherein n is an integer larger than 1.
As shown in fig. 2, the liquid crystal display panel in the embodiment of the application is a VA mode liquid crystal display panel, and the liquid crystal display panel includes a plurality of sub-pixels, specifically, a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B.
The liquid crystal display panel generally includes a substrate, a buffer layer, an active layer, a first gate insulating layer, a first metal layer, a second gate insulating layer, a second metal layer, an interlayer dielectric layer, a source drain layer, a planarization layer, a pixel electrode layer, and the like, which are stacked from bottom to top. As shown in fig. 3, for each sub-pixel, the first metal layer is patterned to form a gate electrode of each thin film transistor, a first electrode plate of a storage capacitor, a scan line 201 and a shielding electrode 202 in a pixel driving circuit for driving the sub-pixel, and the gate electrode of each sub-pixel in the same row of pixels may be connected to the same scan line 201. The second metal layer is patterned to form a second plate of the storage capacitor. The source/drain layer is patterned to form the source and drain of each thin film transistor, the data line 301 and the common electrode line 302, and the drain of each thin film transistor in the same column of sub-pixels can be connected to the data lines 301 of the left and right columns of sub-pixels. The pixel electrode layer 103 is patterned to form a pixel electrode 401 and a common electrode line 402. The liquid crystal display panel includes a plurality of data lines 301, the plurality of data lines 301 are spaced apart in a vertical direction, and further includes a plurality of scan lines 201, the plurality of scan lines 201 are spaced apart in a horizontal direction, the data lines 301 and the scan lines 201 are arranged vertically while intersecting, and the common electrode lines 302 are parallel to the data lines 301 and are located between adjacent data lines 301.
The sub-pixel includes a main pixel region 100 and a sub-pixel region 200, the main pixel region 100 being a region above the scan line 201, and the sub-pixel region 200 being a region below the scan line 201. The pixel electrode 401 includes two portions located in the main pixel region 100 and the auxiliary pixel region 200, each portion including a main portion crossing the cross and a branch portion connected to the main portion, the main portion dividing each portion of the pixel electrode 401 into four display domains, and the two portions of the main pixel region 100 and the auxiliary pixel region 200 include eight display domains in total.
The scan line 201 and the data line 301 control the display of the main pixel region 100 and the auxiliary pixel region 200 through the first transistor 10, and the common electrode line 302 controls the auxiliary pixel region within the auxiliary pixel region 200 through the second transistor 20 to reduce the potential thereof, thereby realizing the differential display of the main pixel region and the auxiliary pixel region to improve the viewing angle. When a signal is input to the data line 301, a gamma reference voltage is generated in a gamma circuit on the Tcon board, then the gamma reference voltage is input into the source driving integrated circuit, and a gray scale voltage corresponding to the gamma voltage and display data is generated in the source driving integrated circuit and is provided to the data line 301, so that each sub-pixel displays different gray scales. The shared electrode line 302, also called sharebar, provides a shared voltage, i.e. SHB voltage.
In S1, the same gamma voltage is input to all main pixel areas, and preset gray scale voltages are input to all sub-pixels, so that a preset picture is displayed on a liquid crystal display panel, and then first optical data of all main pixel areas in the preset picture under the control of the gamma voltages are collected through a data collecting device. Another first optical data can be obtained by replacing another gamma voltage, and repeating the above process n times, wherein n first optical data can be obtained in total if the values of the gamma voltages are different each time.
In one embodiment, the first optical data specifically includes tristimulus values of the main pixel region. The red sub-pixel R, the green sub-pixel G and the blue sub-pixel B in the liquid crystal display panel respectively display red light, green light and blue light, the three colors are three primary colors respectively, and the tristimulus values refer to the three primary color stimulus amounts required by the color matching with the light to be detected in a CIE 1931XYZ chromaticity system, and specifically include a red primary tristimulus value X, a green primary tristimulus value Y and a blue primary tristimulus value Z. As shown in fig. 4, when red light, green light and blue light emitted from each of the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B are mixed under the driving of the gamma voltage 1, the 1 st group tristimulus values are sensed, and the sum of the values is calculated as (X 11 ，Y 11 ，Z 11 ) To show that the group 2 tristimulus values can be sensed under the drive of the gamma voltage 2, with (X) 12 ，Y 12 ，Z 12 ) Expressed by analogy, the nth set of tristimulus values can be sensed under the drive of gamma voltage n, using (X) 1n ，Y 1n ，Z 1n ) To represent.
In one embodiment, S1 specifically includes: inputting preset gray scale voltage, gamma voltage and initial sharing voltage to the liquid crystal display panel so that each main pixel area displays preset gray scale and each auxiliary pixel area has brightness of 0 to obtain k preset pictures, wherein k is a positive integer; when each gamma voltage is input, the tristimulus values of the target area of the liquid crystal display panel under the first visual angle and the tristimulus values of the target area under the second visual angle are respectively obtained when each preset picture is displayed, and first optical data are obtained. For a complete sub-pixel, when gamma voltage and preset gray scale voltage are input, the main pixel area and the auxiliary pixel area emit light, so that the first optical data of the independent main pixel area can be acquired, the interference of the light emission of the auxiliary pixel area is avoided, the initial sharing voltage can be input through the sharing electrode line 302, the main pixel area displays the preset gray scale, and the brightness of the auxiliary pixel area is always 0. According to the requirement of the subsequent test, when only one preset picture is needed, only the first optical data of one preset picture is needed for the same gamma voltage, and when a plurality of preset pictures are needed, the plurality of first optical data are needed for the same gamma voltage, and the first optical data together form the first optical data corresponding to the gamma voltage. When the first optical data corresponding to another gamma voltage is required to be acquired, the same one or more groups of preset gray-scale voltages are input again, one or more preset pictures are also obtained, and then the first optical data corresponding to the replaced gamma voltage is acquired. Repeating the above process for n times to obtain n first optical data, wherein each first optical data comprises k first optical data under preset pictures.
The first optical data for each preset picture includes a tristimulus value at a first viewing angle and a tristimulus value at a second viewing angle, wherein the first viewing angle may be a front view and the second application may be a side view. In order to make the test result more accurate, taking the central area of the liquid crystal display panel as a target area, measuring the tristimulus values of the central area by a tristimulus value colorimeter or a spectroradiometer respectively with a first visual angle and a second visual angle to obtain first optical data under the preset picture.
S2: the method comprises the steps of obtaining the area ratio of a main pixel area and an auxiliary pixel area, taking n gamma voltages as n sharing voltages respectively, and obtaining n second optical data when the auxiliary pixel area is controlled by the n sharing voltages respectively according to n first optical data and the area ratio when each sub-pixel in the liquid crystal display panel displays preset gray scale.
In general, the larger the area to be displayed at the same voltage, the smaller the corresponding optical data value, and conversely, the larger the value of the optical data is, that is, the negative correlation between the value of the optical data and the area of the display surface. On the premise that the optical data of the main pixel region and the optical data of the auxiliary pixel region can be converted from the area ratio between the two if an equal voltage is input to the main pixel region and the auxiliary pixel region respectively.
Specifically, after the first optical data of the main pixel area under the control of n different gamma voltages is obtained in S1, the n gamma voltages are respectively regarded as n shared voltages, and then, as shown in fig. 4, the gamma voltages 1 to n correspond to the shared voltages 1 to n, respectively, the first optical data obtained when the gamma voltage 1 is separately input to the main pixel area can be converted to obtain the second optical data obtained when the shared voltage 1 is separately input to the auxiliary pixel area, the first optical data obtained when the gamma voltage 2 is separately input to the main pixel area can be converted to obtain the second optical data obtained when the shared voltage 2 is separately input to the auxiliary pixel area, and so on, and the first optical data obtained when the gamma voltage n is separately input to the main pixel area can be converted to obtain the second optical data obtained when the shared voltage n is separately input to the auxiliary pixel area.
For each sub-pixel, the initial sharing voltage can be adjusted to enable the auxiliary pixel area to emit light to be 0, so that independent acquisition of first optical data of the main pixel area is achieved, and for the auxiliary pixel area, the main pixel area emits light to be 0, and it is difficult for the auxiliary pixel area to emit light to be different from 0 so as to independently acquire second optical data. In the embodiment of the application, the second optical data when the auxiliary pixel area singly inputs the shared voltage can be directly obtained by converting the area ratio of the main pixel area to the auxiliary pixel area, so that the defect that the direct measurement is difficult is overcome, the labor cost and the time cost are reduced by a direct calculation mode, and the data processing efficiency is improved.
In one embodiment, the second optical data specifically includes tristimulus values of the auxiliary pixel region, then for the 1 st group of tristimulus values (X 11 ，Y 11 ，Z 11 ) Can be converted to obtain the 1 st group tristimulus values (X 21 ，Y 21 ，Z 21 ) For the 2 nd group tristimulus values (X 12 ，Y 12 ，Z 12 ) Can be converted to obtain the group 2 tristimulus values (X 22 ，Y 22 ，Z 22 ) And so on, for the nth set of tristimulus values (X 1n ，Y 1n ，Z 1n ) Can be converted to obtain the nth group of tristimulus values (X 2n ，Y 2n ，Z 2n )。
In one embodiment, S2 specifically includes: acquiring the area ratio of the main pixel area and the auxiliary pixel area; dividing the tristimulus values of the first optical data with the area ratio to obtain the tristimulus values of the second optical data. Because the numerical value of the optical data is inversely related to the area ratio, the tristimulus value in each first optical data can be directly divided by the area ratio, and then the tristimulus value of each second optical data can be obtained.
S3: according to the n first optical data and the n second optical data, m total optical data are obtained when all sub-pixels in the liquid crystal display panel display preset gray scales and are controlled by gamma voltages and shared voltages, and m is an integer larger than 1.
Because the first optical data corresponds to the main pixel area, the second optical data corresponds to the auxiliary pixel area, and the first optical data and the second optical data are combined to obtain total optical data, the total optical data can reflect the optical characteristics of all the sub-pixels in the liquid crystal display panel when the sub-pixels are controlled by gamma voltage and shared voltage at the same time.
In one embodiment, S3 specifically includes:obtaining a first data set according to the n first optical data, and obtaining a second data set according to the n second optical data; traversing and combining the ith first optical data in the first data set and the jth second optical data in the second data set to obtain m total optical data when all the sub-pixels in the liquid crystal display panel are controlled by the ith gamma voltage and the jth shared voltage, wherein i and j are integers, i is more than or equal to 1 and less than or equal to n, and j is more than or equal to 1 and less than or equal to n. Placing n first optical data in the same set to obtain a first data set, placing n second optical data in the same set to obtain a second data set, after obtaining two sets, taking one first optical data from the first data set, taking one second optical data from the second data set, then combining the two to obtain total optical data, traversing and combining elements in each data set to obtain all elements, finally obtaining m total optical data, wherein m is equal to n 2 Traversing the combining operation results in a larger data volume for the total optical data and a larger space available for reference.
In one embodiment, the step of traversing the combination to obtain m total optical data includes the steps of: and superposing the tristimulus values of the ith first optical data and the jth second optical data respectively to obtain the tristimulus values of the corresponding total optical data. As shown in fig. 4, the method (X) 1i ，Y 1i ，Z 1i ) The tristimulus value representing the ith first optical data is represented by (X 2j ，Y 2j ，Z 2j ) The tristimulus value representing the jth second optical data is represented by (X t ，Y t ，Z t ) The tristimulus values (t is an integer and 1.ltoreq.t.ltoreq.m) representing the superimposed t-th total optical data satisfy (X) t ，Y t ，Z t )＝(X 1i +X 2j ，Y 1i +Y 2j ，Z 1i +Z 2j )。
S4: and according to the m total optical data, m groups of test performance data of the liquid crystal display panel are obtained through simulation, wherein the test performance data comprise visual angle data and transmittance data.
After the total optical data is obtained, calculation and simulation can be performed according to a formula related to the optical data to obtain test performance data of the liquid crystal display panel, wherein the view angle data comprises Saixi view angle data and/or VAI view angle data, and the transmittance data comprises white screen transmittance data. The Sarcc viewing angle data specifically includes average color differences in a preset chromaticity space when the liquid crystal display panel displays preset 9 Sarcc pictures at each combination of the gamma voltage and the shared voltage. The SONY VAI visual angle data specifically comprises saturation difference, hue difference and the like in a preset chromaticity space when the liquid crystal display panel displays preset 4 preset pictures under each combination of gamma voltage and shared voltage. The white frame transmittance data specifically includes a ratio of an actual luminance value to an ideal luminance value of the liquid crystal display panel when displaying a white frame at each combination of the gamma voltage and the sharing voltage. One skilled in the art may choose to simulate and calculate any one or more of these metrics based on the test requirements.
In one embodiment, when viewing angle data needs to be acquired, S4 specifically includes: converting the tristimulus values under the first visual angle into first color coordinates in a preset chromaticity space and converting the tristimulus values under the second visual angle into second color coordinates in the preset chromaticity space in the total optical data of each preset picture; and obtaining the visual angle data according to the first color coordinates and the second color coordinates.
For the sai viewing angle data, the method specifically includes an average color difference when the liquid crystal display panel displays 9 preset frames when the preset chromaticity space is CIE 1931l x u x v x chromaticity space under each combination of the gamma voltage and the shared voltage. In the CIE 1931XYZ chromaticity diagram, each color has a specific color coordinate, but the human eye has identification sensitivity, that is, when the color coordinate changes very little, the human eye cannot distinguish the difference of the color change, and in colorimetry, the change range in which the human eye cannot feel the difference of the color is called as the color latitude, so that the defect of the latitude is overcome, the CIE 1931XYZ chromaticity system is improved, and the CIE 1976l x u x v x chromaticity space is obtained. The relationship between color coordinates (u, v) and tristimulus values XYZ in CIE 1976l x u x v x chromaticity space is:
when acquiring the Saxifraga visual angle data, each gamma voltage and shared voltage combination corresponds to 9 preset pictures, all red sub-pixels in each preset picture display red light with a specific gray level, all green sub-pixels display green light with a specific gray level, all blue sub-pixels also display blue light with a specific gray level, and the three colors are mixed to enable the whole Saxifraga picture to display a specific color, such as light skin color, dark skin color, red, gray and the like, and the preset gray levels corresponding to the preset pictures are different.
Specifically, for each of the gray levels of the 9 preset frames, different values may be provided, so that the preset frames 1 to 9 respectively display black skin color (dark skin), light skin color (light skin), blue color (blue), green color (green), red color (red), yellow color (yellow), magenta color (magenta), blue color (cyan), and gray color (grey) through the different gray levels. When the preset gray level is input through the analog interface, the gray level of each sub-pixel is in the range of 0 to 255, for example, the preset gray levels of each color sub-pixel in the preset picture 1 are 115, 82 and 68 respectively, the preset gray levels of each color sub-pixel in the preset picture 2 are 194, 150 and 130 respectively, the preset gray levels of each color sub-pixel in the preset picture 3 are 56, 61 and 150 respectively, the preset gray levels of each color sub-pixel in the preset picture 4 are 70, 148 and 73 respectively, the preset gray levels of each color sub-pixel in the preset picture 5 are 175, 54 and 60 respectively, the preset gray levels of each color sub-pixel in the preset picture 6 are 231, 199 and 31 respectively, the preset gray levels of each color sub-pixel in the preset picture 7 are 187, 86 and 149 respectively, the preset gray levels of each color sub-pixel in the preset picture 8 are 8, 133 and 161 respectively, and the preset gray levels of each color sub-pixel in the preset picture 9 are 122, 122 and 122 respectively. When the preset gray level is input through the digital interface, the gray level value of each sub-pixel is in the range of 16 to 235 gray levels, the gray levels of the sub-pixels with various colors in the preset pictures 1 to 9 are slightly different, but the mixed preset picture still displays the 9 colors.
The tristimulus values of the total optical data corresponding to each preset picture can be obtained through S1 to S3, 9 tristimulus values can be obtained for 9 preset pictures, and the tristimulus values corresponding to each preset picture are different due to different gray scales displayed by each preset western picture. After the tristimulus values of the total optical data of each preset picture are obtained, color coordinates (u, v) in the CIE 1976l x u x v x chromaticity space can be obtained by the above formula 1 and formula 2, wherein the color coordinates include a first color coordinate (u 0 ，v 0 ) And a second color coordinate (u) at a second viewing angle 1 ，v 1 ) The color difference Δe of each preset frame in CIE 1976l x u x v x chromaticity space satisfies:
and averaging 9 delta E values obtained from 9 preset pictures under the same gamma voltage and shared voltage to obtain average chromatic aberration, so that the Saician viewing angle data corresponding to one piece of total optical data can be obtained, and m pieces of total optical data can obtain m average chromatic aberration.
For the SONY VAI viewing angle data, the data specifically includes data such as saturation difference dc and hue difference dh of each preset picture when the preset chromaticity space is CIE 1931l×c×h×chromaticity space under each combination of the gamma voltage and the shared voltage. The color includes chromaticity and lightness, the chromaticity further includes hue and saturation, the chromatic aberration reflects the chromatic difference of the color, and the lightness difference of the color is not considered, so that the CIE 1976L x a x b x chromaticity space is further obtained on the basis of the CIE 1976L x u x v x chromaticity space, L x represents lightness, and (a x b x) represents chromaticity. And providing 4 preset pictures under the SONY VAI visual angle, wherein the gray scales of all the sub-pixels in each preset picture are preset values, the gray scales of the 4 preset pictures are unequal, and the 4 preset pictures respectively display different skin colors through different preset gray scales. Specifically, the gray scales of the red, green and blue sub-pixels of the preset frame 1 are 133, 101 and 75, respectively, the gray scales of the red, green and blue sub-pixels of the preset frame 2 are 192, 156 and 129, respectively, the gray scales of the red, green and blue sub-pixels of the preset frame 3 are 186, 161 and 143, respectively, and the gray scales of the red, green and blue sub-pixels of the preset frame 4 are 211, 153 and 126, respectively. Similarly, the tristimulus values of the total optical data corresponding to each preset picture can be obtained through S1 to S3, and 4 tristimulus values can be obtained for 4 preset pictures.
Let the tristimulus value of the standard light source be (X n ，Y n ，Z n ) For the tristimulus values (X, Y, Z) of the total optical data corresponding to each preset frame, L, a, b in CIE 1976L X a b X chromaticity space satisfy:
L*＝116f(Y/Y n ) -16 (formula 4);
a*＝500[f(X/X n )-f(Y/Y n )](equation 5);
b*＝200[f(Y/Y n )-f(Z/Z n )](equation 6).
In the above formulas, when X/X n At > 0.008856, f (X/X n )＝(X/X n ) 1/3 When X/X n F (X/X) is less than or equal to 0.008856 n )＝7.787(X/X n ) +16/116; when Y/Y n At > 0.008856, f (Y/Y n )＝(Y/Y n ) 1/3 When Y/Y n When the ratio of f (Y/Y) is less than or equal to 0.008856 n ) = 7.787 (Y/Yn) +16/116; when Z/Z n At > 0.008856, f (Z/Z n )＝(Z/Z n ) 1/3 When Z/Z n F (Z/Z) when the ratio of the F to the Z is less than or equal to 0.008856 n )＝7.787(Z/Z n )+16/116。
After obtaining the tristimulus values of the total optical data of each preset frame, the color coordinates (L, a, b) in the CIE 1976L x a x b x chromaticity space can be obtained by the above formulas 4 to 6, wherein the color coordinates include the first color coordinates (L 0 ，a 0 ，b 0 ) And a second color coordinate (L) at a second viewing angle 1 ，a 1 ，b 1 ) The chromaticity differences Δa and Δb, and the brightness difference Δl of each preset picture satisfy:
ΔL＝L 1 -L 0 (equation 7);
Δa＝a 1 -a 0 (equation 8);
Δb＝b 1 -b 0 (equation 9).
On this basis, the color difference Δe of each preset picture in the CIE 1976l x a x b x chromaticity space can be obtained, where Δe satisfies:
after the above calculation, Δl, Δa, Δb, and Δe are obtained, the saturation difference dc, the hue difference dh, and other data in the l×c×h chromaticity space can be obtained according to the conversion relationship between the CIE 1976l×a×b×chromaticity space and the l×c×h chromaticity space.
In one embodiment, when white-picture transmittance data needs to be acquired, S4 specifically includes: obtaining the actual brightness of the white picture according to the total optical data of the white picture; and obtaining the white picture transmittance data according to the actual brightness and the ideal brightness of the white picture. For the white picture transmittance data, the same gamma voltage and the same shared voltage are combined, and the gray scale values of the red sub-pixel, the green sub-pixel and the blue sub-pixel in the liquid crystal display panel are controlled, so that the liquid crystal display panel displays a white picture. The tristimulus values of the total optical data corresponding to the white picture can be obtained through the steps S1 to S3, and then the actual brightness Lv of the white picture is obtained through conversion. For different combinations of gamma voltages and shared voltages, the corresponding tristimulus values are different, and the actual brightness values Lv of the white pictures are also different. And converting the tristimulus value of each total optical data into an actual brightness value Lv of the white picture, obtaining an ideal brightness value of the liquid crystal display panel when the white picture is displayed, dividing the actual brightness value by the ideal brightness value to obtain corresponding white picture transmittance data, and obtaining m white picture transmittance data from m total optical data.
S5: the required target test performance data is determined from the m sets of test performance data, the target gamma voltage is determined from the n gamma voltages according to the target test performance data, and the target shared voltage is determined from the n shared voltages.
And comprehensively comparing and considering the m groups of test performance data, and selecting a group of test performance data which is most in line with the expectation as target test performance data, wherein the gamma voltage required by the target test performance data is used as target gamma voltage in the process, the required shared voltage is the target shared voltage, and the combination of the target gamma voltage and the target shared voltage can enable the liquid crystal display panel to have good visual angle and penetration rate.
In one embodiment, S5 specifically includes: acquiring expected performance data; comparing the m groups of test performance data with expected performance data, and determining target test performance data from the m groups of test performance data according to the comparison result. When the target test performance data is determined, the expected performance data, which is the visual angle and the penetration rate that a developer expects to have for the liquid crystal display panel of the current specification, can be obtained first, m groups of test performance data and the expected performance data are respectively compared, and according to the comparison result, a group of test performance data with the comprehensive index closest to the expected performance data can be used as the target test performance data.
After the target gamma voltage and the target sharing voltage are finally obtained through the process, in the subsequent use process of the liquid crystal display panel with the same specification, the target gamma voltage can be input to all sub-pixels of the liquid crystal display panel, and the target sharing voltage is input to all auxiliary pixel areas, so that the liquid crystal display panel presents the same display effect as that in the target test performance data, and the liquid crystal display panel with better image quality is obtained.
When the related test performance data of the visual angle and the transmissivity are obtained currently, different sharing voltages are adjusted through experiments, the visual angle and the transmissivity data of the liquid crystal display panel are measured actually, and then proper sharing voltages are determined, so that the efficiency is low. In the voltage determination method of the application, n first optical data of the main pixel area are obtained only through experiments, n second optical data of the auxiliary pixel area can be obtained through calculation directly according to the area ratio of the main pixel area and the auxiliary pixel area, m total optical data of the sub-pixel are obtained through calculation, m groups of test performance data can be obtained through direct simulation according to all the total optical data after the total optical data are obtained, finally, required target test performance data are selected, and finally, required target gamma voltage and target sharing voltage can be determined, in the process, experimental operation is only needed in the process of obtaining the first optical data, all the subsequent steps can be obtained through calculation and simulation, thus, labor and time cost are reduced, and efficiency is remarkably improved.
As shown in fig. 5, an embodiment of the present application further provides a voltage determining apparatus, where the apparatus is applied to a liquid crystal display panel, the liquid crystal display panel includes a plurality of sub-pixels, the sub-pixels include a main pixel area and an auxiliary pixel area, and the apparatus specifically includes:
A first obtaining module 110, configured to obtain n first optical data of the main pixel area when the main pixel area is controlled by n gamma voltages respectively when each sub-pixel in the liquid crystal display panel displays a preset gray level, where n is an integer greater than 1;
a second obtaining module 120, configured to obtain an area ratio of the main pixel area and the auxiliary pixel area, and use the n gamma voltages as n shared voltages, respectively, to obtain n second optical data of the auxiliary pixel area when the n shared voltages control the auxiliary pixel area when each sub-pixel in the liquid crystal display panel displays the preset gray scale according to the n first optical data and the area ratio;
the obtaining module 130 is configured to obtain, according to the n first optical data and the n second optical data, m total optical data when each sub-pixel in the liquid crystal display panel displays the preset gray scale and is controlled by gamma voltage and shared voltage, where m is an integer greater than 1;
the simulation module 140 is configured to simulate and obtain m groups of test performance data of the liquid crystal display panel according to m total optical data, where the test performance data includes viewing angle data and transmittance data;
the determining module 150 is configured to determine required target test performance data from m sets of test performance data, determine a target gamma voltage from n gamma voltages according to the target test performance data, and determine a target shared voltage from n shared voltages.
In one embodiment, the first optical data, the second optical data, and the total optical data each include tristimulus values.
In one embodiment, the first acquisition module 110 includes:
the first input sub-module is used for inputting preset gray scale voltage, gamma voltage and initial sharing voltage to the liquid crystal display panel so that each main pixel area displays preset gray scale and each auxiliary pixel area has brightness of 0, k preset pictures are obtained, and k is a positive integer;
the first acquisition sub-module is used for respectively acquiring the tristimulus values of the target area of the liquid crystal display panel under the first visual angle and the tristimulus values of the target area under the second visual angle when each preset picture is displayed when each gamma voltage is input, so as to obtain first optical data.
In one embodiment, the second acquisition module 120 includes:
the second acquisition submodule is used for acquiring the area ratio of the main pixel area and the auxiliary pixel area;
the first obtaining submodule is used for dividing the tristimulus value of each first optical data with the area ratio to obtain the tristimulus value of the corresponding second optical data.
In one embodiment, the obtaining module 130 includes:
the second obtaining submodule is used for obtaining a first data set according to n first optical data and obtaining a second data set according to n second optical data;
And a third obtaining sub-module, configured to traverse and combine the ith first optical data in the first data set and the jth second optical data in the second data set, to obtain m total optical data when each sub-pixel in the liquid crystal display panel displays the preset gray scale and is controlled by the ith gamma voltage and the jth shared voltage, where i and j are integers, i is greater than or equal to 1 and less than or equal to n, and j is greater than or equal to 1 and less than or equal to n.
In one embodiment, the third obtaining submodule is configured to superimpose the tristimulus values of the ith first optical data with the tristimulus values of the jth second optical data respectively to obtain the tristimulus values of the corresponding total optical data.
In one embodiment, the perspective data includes a saicing perspective data and/or a VAI perspective data, and the simulation module 140 includes:
a conversion sub-module, configured to convert, in the total optical data of each preset picture, a tristimulus value under the first viewing angle into a first color coordinate in a preset chromaticity space, and convert a tristimulus value under the second viewing angle into a second color coordinate in the preset chromaticity space;
and a fourth obtaining sub-module, configured to obtain the viewing angle data according to the first color coordinate and the second color coordinate.
In one embodiment, the transmissivity data comprises white transmissivity data, and the simulation module 140 comprises:
fifthly, obtaining a sub-module, which is used for obtaining the actual brightness of the white picture according to the total optical data of the white picture;
and a sixth obtaining sub-module, configured to obtain the white frame transmittance data according to the actual brightness and the ideal brightness of the white frame.
In one embodiment, the determination module 150 includes:
a third acquisition sub-module for acquiring expected performance data;
and the determining submodule is used for comparing the m groups of test performance data with expected performance data and determining target test performance data from the m groups of test performance data according to the comparison result.
In one embodiment, the voltage determining apparatus further includes an input module for inputting a target gamma voltage to all sub-pixels of the liquid crystal display panel and inputting a target sharing voltage to all sub-pixel regions.
According to the voltage determining device, through setting the modules, n first optical data of the main pixel area are obtained through experiments, n second optical data of the auxiliary pixel area can be obtained through calculation directly according to the area ratio of the main pixel area to the auxiliary pixel area, m total optical data of the sub pixels are obtained through calculation, m groups of test performance data can be obtained through direct simulation according to the total optical data after the total optical data are obtained, finally required target test performance data are selected, required target gamma voltage and target sharing voltage can be determined finally, in the process, experimental operation is carried out only in the process of obtaining the first optical data, all subsequent steps can be obtained through calculation and simulation, therefore, labor and time cost are reduced, and efficiency is improved remarkably.
As can be seen from the above embodiments:
the application provides a voltage determination method and a voltage determination device, which only need to obtain n first optical data of a main pixel area through experiments, can directly calculate n second optical data of an auxiliary pixel area according to the area ratio of the main pixel area and the auxiliary pixel area, further calculate m total optical data of sub-pixels, directly simulate to obtain m groups of test performance data according to all the total optical data after obtaining the total optical data, finally select required target test performance data, and finally determine required target gamma voltage and target sharing voltage.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The foregoing has described in detail a voltage determination method and a voltage determination device according to embodiments of the present application, and specific examples are applied to illustrate the principles and embodiments of the present application, where the foregoing examples are only for helping to understand the technical solution and core ideas of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (6)
1. A voltage determining method applied to a liquid crystal display panel including a plurality of sub-pixels including a main pixel region and a sub-pixel region, the voltage determining method comprising:
when each sub-pixel in the liquid crystal display panel displays preset gray scale, n first optical data of the main pixel area when the main pixel area is controlled by n gamma voltages respectively are obtained, wherein n is an integer larger than 1;
acquiring the area ratio of the main pixel area to the auxiliary pixel area, taking the n gamma voltages as n shared voltages respectively, and obtaining n second optical data of the auxiliary pixel area when the auxiliary pixel area is controlled by the n shared voltages respectively according to the n first optical data and the area ratio when each sub-pixel in the liquid crystal display panel displays the preset gray scale;
according to the n first optical data and the n second optical data, obtaining m total optical data when each sub-pixel in the liquid crystal display panel displays the preset gray scale and is controlled by gamma voltage and shared voltage, wherein m is an integer larger than 1;
according to the m total optical data, m groups of test performance data of the liquid crystal display panel are obtained through simulation, wherein the test performance data comprise visual angle data and transmittance data;
Determining required target test performance data from the m groups of test performance data, determining target gamma voltages from the n gamma voltages according to the target test performance data, and determining target shared voltages from the n shared voltages;
when each sub-pixel in the liquid crystal display panel displays a preset gray scale, acquiring n first optical data of the main pixel area when the main pixel area is controlled by n gamma voltages respectively, wherein the step comprises the following steps:
inputting preset gray scale voltage, gamma voltage and initial sharing voltage to the liquid crystal display panel so that each main pixel area displays preset gray scale and each auxiliary pixel area has brightness of 0, and k preset pictures are obtained, wherein k is a positive integer;
when each gamma voltage is input, respectively acquiring a tristimulus value of a target area of the liquid crystal display panel under a first visual angle and a tristimulus value of the target area under a second visual angle when each preset picture is displayed, and obtaining first optical data;
the step of obtaining the area ratio of the main pixel area and the auxiliary pixel area, taking the n gamma voltages as n shared voltages respectively, and obtaining n second optical data of the auxiliary pixel area when the auxiliary pixel area is controlled by the n shared voltages respectively according to the n first optical data and the area ratio when each sub-pixel in the liquid crystal display panel displays the preset gray scale comprises the following steps:
Acquiring the area ratio of the main pixel area to the auxiliary pixel area;
dividing the tristimulus value of each first optical data with the area ratio to obtain the tristimulus value of the corresponding second optical data;
according to the n first optical data and the n second optical data, obtaining m total optical data controlled by gamma voltage and shared voltage when each sub-pixel in the liquid crystal display panel displays the preset gray scale, wherein the steps comprise:
obtaining a first data set according to the n first optical data, and obtaining a second data set according to the n second optical data;
traversing and combining the ith first optical data in the first data set and the jth second optical data in the second data set to obtain m total optical data when each sub-pixel in the liquid crystal display panel displays the preset gray scale and is controlled by the ith gamma voltage and the jth sharing voltage, wherein i and j are integers, i is more than or equal to 1 and less than or equal to n, and j is more than or equal to 1 and less than or equal to n;
traversing and combining the ith first optical data in the first data set and the jth second optical data in the second data set to obtain m total optical data controlled by the ith gamma voltage and the jth shared voltage when each sub-pixel in the liquid crystal display panel displays the preset gray scale, wherein the steps comprise:
And superposing the tristimulus values of the ith first optical data and the jth second optical data respectively to obtain the tristimulus values of the corresponding total optical data.
2. The voltage determination method of claim 1, wherein the first optical data, the second optical data, and the total optical data each comprise tristimulus values.
3. The method according to claim 1, wherein the viewing angle data includes a sai viewing angle data and/or a VAI viewing angle data, and the step of obtaining m sets of test performance data of the liquid crystal display panel by simulation based on the m total optical data includes:
converting the tristimulus values under the first visual angle into first color coordinates in a preset chromaticity space and converting the tristimulus values under the second visual angle into second color coordinates in the preset chromaticity space in the total optical data of each preset picture;
and obtaining the visual angle data according to the first color coordinates and the second color coordinates.
4. The method of determining voltage according to claim 1, wherein the transmittance data includes white transmittance data, the preset frame is a white frame, and the step of obtaining m sets of test performance data of the liquid crystal display panel by simulation according to the m total optical data includes:
Obtaining the actual brightness of the white picture according to the total optical data of the white picture;
and obtaining the white picture transmittance data according to the actual brightness and the ideal brightness of the white picture.
5. The voltage determination method of claim 1, wherein the step of determining desired target test performance data from the m sets of test performance data comprises:
acquiring expected performance data;
and comparing the m groups of test performance data with the expected performance data, and determining target test performance data from the m groups of test performance data according to a comparison result.
6. A voltage determining apparatus, characterized by being applied to a liquid crystal display panel including a plurality of sub-pixels including a main pixel region and a sub-pixel region, comprising:
a first obtaining module, configured to obtain n first optical data of the main pixel area when each sub-pixel in the liquid crystal display panel is controlled by n gamma voltages respectively when each sub-pixel displays a preset gray level, where n is an integer greater than 1;
the second acquisition module is used for acquiring the area ratio of the main pixel area and the auxiliary pixel area, taking the n gamma voltages as n shared voltages respectively, and obtaining n second optical data of the auxiliary pixel area when the auxiliary pixel area is controlled by the n shared voltages respectively according to the n first optical data and the area ratio when each sub-pixel in the liquid crystal display panel displays the preset gray scale;
The obtaining module is used for obtaining m total optical data when each sub-pixel in the liquid crystal display panel displays the preset gray scale and is controlled by gamma voltage and shared voltage according to the n first optical data and the n second optical data, wherein m is an integer larger than 1;
the simulation module is used for obtaining m groups of test performance data of the liquid crystal display panel in a simulation mode according to the m total optical data, wherein the test performance data comprise visual angle data and transmittance data;
the determining module is used for determining required target test performance data from the m groups of test performance data, determining target gamma voltages from the n gamma voltages according to the target test performance data, and determining target shared voltages from the n shared voltages;
the first acquisition module includes:
the first input sub-module is used for inputting preset gray scale voltage, gamma voltage and initial sharing voltage to the liquid crystal display panel so that each main pixel area displays preset gray scale and each auxiliary pixel area has brightness of 0, k preset pictures are obtained, and k is a positive integer;
the first acquisition submodule is used for respectively acquiring a tristimulus value of a target area of the liquid crystal display panel under a first visual angle and a tristimulus value of the target area under a second visual angle when each preset picture is displayed when each gamma voltage is input, so as to obtain first optical data;
The second acquisition module includes:
the second acquisition submodule is used for acquiring the area ratio of the main pixel area and the auxiliary pixel area;
the first obtaining submodule is used for dividing the tristimulus value of each first optical data with the area ratio to obtain the tristimulus value of the corresponding second optical data;
the obtaining module comprises:
the second obtaining submodule is used for obtaining a first data set according to n first optical data and obtaining a second data set according to n second optical data;
a third obtaining sub-module, configured to traverse and combine the ith first optical data in the first data set and the jth second optical data in the second data set, to obtain m total optical data when each sub-pixel in the liquid crystal display panel displays the preset gray scale and is controlled by the ith gamma voltage and the jth shared voltage, where i and j are integers, i is greater than or equal to 1 and less than or equal to n, and j is greater than or equal to 1 and less than or equal to n;
and the third obtaining submodule is used for respectively superposing the tristimulus values of the ith first optical data and the jth second optical data to obtain the tristimulus values of the corresponding total optical data.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599656A (en) * | 2015-02-16 | 2015-05-06 | 深圳市华星光电技术有限公司 | Method of correcting imaging gray levels of sub-pixels of LCD (liquid crystal display) |
| CN105632434A (en) * | 2015-12-31 | 2016-06-01 | 深圳市华星光电技术有限公司 | Method and device for determining driving voltage of sub-pixel of liquid crystal panel |
| KR20190031744A (en) * | 2017-09-18 | 2019-03-27 | 엘지디스플레이 주식회사 | Optical Compensation System And Method Thereof |
| WO2022126337A1 (en) * | 2020-12-14 | 2022-06-23 | 京东方科技集团股份有限公司 | Gamma correction method and apparatus, electronic device, and readable storage medium |
| CN115019744A (en) * | 2022-07-07 | 2022-09-06 | Tcl华星光电技术有限公司 | Voltage determination method and voltage determination device |
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| US9589497B2 (en) * | 2015-05-21 | 2017-03-07 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Methods of grayscale calibration of subpixels of liquid crystal panels during imaging |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599656A (en) * | 2015-02-16 | 2015-05-06 | 深圳市华星光电技术有限公司 | Method of correcting imaging gray levels of sub-pixels of LCD (liquid crystal display) |
| CN105632434A (en) * | 2015-12-31 | 2016-06-01 | 深圳市华星光电技术有限公司 | Method and device for determining driving voltage of sub-pixel of liquid crystal panel |
| KR20190031744A (en) * | 2017-09-18 | 2019-03-27 | 엘지디스플레이 주식회사 | Optical Compensation System And Method Thereof |
| WO2022126337A1 (en) * | 2020-12-14 | 2022-06-23 | 京东方科技集团股份有限公司 | Gamma correction method and apparatus, electronic device, and readable storage medium |
| CN115019744A (en) * | 2022-07-07 | 2022-09-06 | Tcl华星光电技术有限公司 | Voltage determination method and voltage determination device |
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