Smear improvement method and device, display device, storage medium and electronic device

By adjusting the low grayscale driving voltage of the OLED display and optimizing the R/G/B voltage configuration, the problem of smearing under low brightness is solved, the display's lighting speed and color accuracy are improved, and the user experience is improved.

CN119007643BActive Publication Date: 2025-09-19BOE TECHNOLOGY GROUP CO LTD +1
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202410868070.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-09-19
Estimated Expiration
2044-06-28

AI Technical Summary

Technical Problem

At low brightness, the ghosting phenomenon in OLED displays seriously affects the user's viewing experience. The existing technology of improving the properties of luminescent materials and adjusting the material ratio is costly and time-consuming, making it difficult to effectively solve the problem.

Method used

While keeping the luminescent material unchanged, by configuring different driving voltages for R/G/B at low grayscale, adjusting the gamma voltage weight value and primary color voltage, and optimizing the three primary color driving voltages, the ghosting problem is improved.

Benefits of technology

Without increasing R&D costs, it effectively reduces the impact of smearing under low brightness, increases the lighting speed and color accuracy, and improves the display effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119007643B_ABST
    Figure CN119007643B_ABST
Patent Text Reader

Abstract

The present application relates to the field of display, and discloses a method and device for improving ghosting, a display device, a storage medium, and an electronic device. The method includes: saving the grayscale of the gamma voltage to be adjusted in the second grayscale set, and saving the grayscale as the reference voltage in the first grayscale set; for any second grayscale in the second grayscale set, obtaining the first grayscale as the reference voltage from the first grayscale set and determining the gamma voltage weight value in the first preset relationship, and then determining the gamma voltage of the second grayscale; splitting the gamma voltage of the second grayscale into three primary color voltages, and determining the primary color voltage weight value corresponding to each primary color voltage; and then determining the three primary color voltages respectively, and finally adjusting the driving voltages corresponding to the three primary colors respectively, so as to improve ghosting by adjusting the driving voltages of the three primary colors. The lighting speed is improved, and the driving voltages of the three primary colors are configured separately, which saves costs and reduces the ghosting effect at low brightness.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a method and device for improving smear, a storage medium, a computer program product, a display device, and an electronic device. Background Art

[0002] The purpose of the background technology description provided here is to give an overall background of the present application. The statements in this section merely provide background related to the present application and do not necessarily constitute prior art.

[0003] In the display field, ghosting is a common phenomenon. It causes ghosting (or ghosting) behind moving objects on the display, which seriously affects the user's viewing experience. For dynamic images, the smaller the ghosting, the clearer the image and the better the viewing experience.

[0004] refer to Figure 1 ( Figure 1 Spec in it means specification, and parameters a and b respectively represent the maximum difference between the first frame brightness ratio of W (White) and the first frame brightness ratio of R (Red) / G (Green) / B (Blue). Among them, the first frame brightness ratio represents the ratio between the brightness of the first frame and the brightness after stabilization; the maximum difference between the first frame brightness ratios of R / G / B can be expressed by b=Max(b1, b2, b3)-Min(b1, b2, b3), wherein b1, b2 and b3 represent the values ​​of the first frame brightness ratios of R, G and B respectively). The core factor affecting the ghosting is the speed and accuracy of the conversion of the display screen from the first screen A to the second screen B. The faster and more accurate the conversion, the smaller the ghosting effect. Specifically for OLED (Organic Electroluminescence Display, abbreviated as OLED) self-luminous products, it can be converted into the following Figure 1 The technical indicators shown are as follows: testing the first-frame brightness ratio of W at a fixed brightness L. The first-frame brightness ratio can be used to evaluate the lighting speed of the self-luminous material. The higher the first-frame brightness ratio, the faster the lighting speed; testing the maximum difference in the first-frame brightness ratio between R / G / B at a fixed brightness L to evaluate the chromaticity deviation during the lighting process. The smaller the deviation, the more accurate the color.

[0005] refer to Figure 1 As shown, when the fixed brightness L is at a high brightness, parameters a and b are more likely to meet the standards (i.e., meet the corresponding Spec requirements). However, when the fixed brightness L is at a low brightness, the low drive current at low brightness amplifies the response speed differences of the R / G / B luminescent materials, making the parameters a and b tests very likely to fail to meet the preset requirements. Given this, how to reduce the impact of smear at low brightness is one of the current issues that need to be addressed.

[0006] To address the issue of smearing under low brightness, relevant technical solutions include: improving the luminescent properties of the material and adjusting the material ratio. However, the disadvantage of this method is that the R&D cost of new materials is high and the development cycle is long. In addition, the time required to verify the adjustment of the material ratio is also very long. Generally, the number of adjustments allowed for product projects is limited, and it is difficult to guarantee the optimization effect. Summary of the Invention

[0007] To address the above issues, this application proposes a method and device for improving smearing, a storage medium, a computer program product, a display device, and an electronic device. When applied to an OLED display device, the smearing problem at low brightness can be resolved to a certain extent by configuring different driving voltages for R / G / B (i.e., the three primary colors) at low grayscales while maintaining the same luminescent material, thus saving R&D costs.

[0008] In a first aspect of the present application, a method for improving smear is provided, comprising:

[0009] Determining a first grayscale set and a second grayscale set from a preset grayscale set; wherein the second grayscale set stores grayscales for which the gamma voltage is to be adjusted, and the first grayscale set stores grayscales for which the gamma voltage is used as a reference voltage;

[0010] For any second grayscale in the second grayscale set, obtaining a first grayscale as a reference voltage from the first grayscale set according to a preset storage strategy; determining a gamma voltage weight value in a first preset relationship according to a smear test result performed at a preset brightness value, and determining a gamma voltage for the second grayscale according to the gamma voltage weight value and the reference voltage of the first grayscale; wherein the first preset relationship represents a relationship between the reference voltage and the voltage to be adjusted;

[0011] Splitting the gamma voltage of the second grayscale into three primary color voltages based on the preset three primary colors, and determining primary color voltage weights corresponding to the primary color voltages in a second preset relationship based on a smear test result performed at the preset brightness value; wherein the second preset relationship represents a relationship between the primary color voltages and the gamma voltage of the second grayscale;

[0012] According to the gamma voltage of the second grayscale, the three primary color voltages of the second grayscale are respectively determined by the second preset relationship, and the driving voltages corresponding to the three primary colors are respectively adjusted according to the three primary color voltages, so as to improve the ghosting by adjusting the driving voltages of the three primary colors.

[0013] Furthermore, a method of determining the reference voltage of the first gray scale includes:

[0014] An actual detection result value of the first grayscale voltage is acquired, and the actual detection result value is used as a reference voltage of the first grayscale.

[0015] Furthermore, the number of elements in the first grayscale set is equal to the number of elements in the second grayscale set.

[0016] Furthermore, the preset grayscale set includes grayscale L0 to grayscale L10;

[0017] Both the first grayscale set and the second grayscale set store one or more grayscales from L0 to L10.

[0018] Furthermore, the first preset relationship includes:

[0019] V Lx =K1*V Ln

[0020] Among them, V Lx is the gamma voltage of the second grayscale, V Ln is the gamma voltage of the first gray scale, and K1 is the gamma voltage weight value.

[0021] Furthermore, the second preset relationship includes: a first primary color voltage relationship, a second primary color voltage relationship and a third primary color voltage relationship; wherein,

[0022] The driving voltage corresponding to the first primary color is determined by the first primary color voltage relationship, where the first primary color voltage relationship includes:

[0023] V Lx R=K2*V Lx

[0024] Among them, V Lx is the gamma voltage of the second grayscale, V Lx R is the driving voltage corresponding to the first primary color, and K2 is the primary color voltage weight value corresponding to the first primary color voltage;

[0025] The driving voltage corresponding to the second primary color is determined by the second primary color voltage relationship, where the second primary color voltage relationship includes:

[0026] V Lx G=K3*V Lx

[0027] Among them, V Lx G is the driving voltage corresponding to the second primary color, and K3 is the primary color voltage weight value corresponding to the second primary color voltage;

[0028] The driving voltage corresponding to the third primary color is determined by the third primary color voltage relationship, and the third primary color voltage relationship includes:

[0029] V Lx B=K4*V Lx

[0030] Among them, V Lx B is the driving voltage corresponding to the third primary color, and K4 is the primary color voltage weight value corresponding to the third primary color voltage.

[0031] A second aspect of the present application provides a smear improvement device, comprising:

[0032] A first determining module is configured to determine a first grayscale set and a second grayscale set from a preset grayscale set; wherein the second grayscale set stores grayscales for which the gamma voltage is to be adjusted, and the first grayscale set stores grayscales for which the gamma voltage is used as a reference voltage;

[0033] a second determination module configured to, for any second grayscale in the second grayscale set, obtain a first grayscale as a reference voltage from the first grayscale set according to a preset storage strategy; determine a gamma voltage weight value in a first preset relationship based on a smear test result performed at a preset brightness value; and determine a gamma voltage for the second grayscale based on the gamma voltage weight value and the reference voltage for the first grayscale; wherein the first preset relationship represents a relationship between the reference voltage and the voltage to be adjusted;

[0034] a third determining module, configured to split the gamma voltage of the second grayscale into three primary color voltages based on the preset three primary colors, and determine, based on a smear test result performed at the preset brightness value, a primary color voltage weight value corresponding to each primary color voltage in a second preset relationship; wherein the second preset relationship represents a relationship between the primary color voltages and the gamma voltage of the second grayscale;

[0035] The adjustment module is used to determine the three primary color voltages of the second grayscale according to the gamma voltage of the second grayscale through the second preset relationship, and adjust the driving voltages corresponding to the three primary colors according to the three primary color voltages, so as to improve the ghosting by adjusting the driving voltages of the three primary colors.

[0036] According to a third aspect of the present application, a computer-readable storage medium is provided. The computer program stored in the computer-readable storage medium can be executed by one or more processors to implement the steps of the method described above.

[0037] A fourth aspect of the present application provides a display device, comprising:

[0038] The display module is configured to: display according to the display data;

[0039] The control unit is electrically connected to the display module and is configured to improve the smear generated by the display module when displaying the display data according to the smear improvement method described above.

[0040] In a fifth aspect of the present application, an electronic device is provided, comprising the display device as described above.

[0041] According to a sixth aspect of the present application, a computer program product is provided, which includes a computer program or instructions, and when the computer program or instructions are executed by a processor, the steps of the above method are implemented.

[0042] Compared with the prior art, the advantages or beneficial effects of the technical solution of this application include:

[0043] This application reduces the voltage difference to the specified brightness voltage when lighting up by adjusting the set voltage of low grayscale, thereby improving the lighting speed; by configuring different driving voltages for the three primary colors at low grayscale, it saves costs and reduces the effect of ghosting at low brightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in the relevant field, other drawings can be obtained based on the provided drawings without any creative work.

[0045] It should also be noted that, for ease of description, only the portions relevant to the present disclosure are shown in the accompanying drawings. The accompanying drawings, which constitute a part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and their descriptions in this application are intended to explain this application and do not constitute an undue limitation of this application. In the accompanying drawings:

[0046] Figure 1 A schematic diagram of an evaluation index for smearing of an OLED screen provided in an embodiment of the present application;

[0047] Figure 2 A flowchart of a method for improving smear provided in an embodiment of the present application;

[0048] Figure 3 A schematic diagram of experimental results of a method for improving smearing provided in an embodiment of the present application. DETAILED DESCRIPTION

[0049] The following will describe the implementation methods of this application in detail with reference to the accompanying drawings and examples, so that the application can fully understand how technical means are used to solve technical problems and achieve corresponding technical effects, and implement them accordingly. The embodiments of this application and the various features therein can be combined with each other without conflict, and the resulting technical solutions are all within the scope of protection of this application.

[0050] It should be clear that the embodiments described below are only some of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of this application.

[0051] This application provides a method for improving smearing, which can be applied to display devices. Since the brightness is not only related to the material itself, but can also be achieved by adjusting the driving voltage, it can also be applied to display devices equipped with OLED screens.

[0052] Figure 2 This is a flow chart of a method for improving smear provided in an embodiment of the present application, such as Figure 2 As shown, the method disclosed in this embodiment includes the following steps:

[0053] Step 210 : Determine a first grayscale set and a second grayscale set from the preset grayscale sets; wherein the second grayscale set stores grayscales whose gamma voltages are to be adjusted, and the first grayscale set stores grayscales whose gamma voltages are used as reference voltages.

[0054] In some embodiments, the preset grayscale set includes grayscales L0 to L10;

[0055] Both the first grayscale set and the second grayscale set store one or more grayscales from L0 to L10.

[0056] For example, the preset grayscale set stores grayscales L0 to L10; the first grayscale set and the second grayscale set may include the following situations: the first grayscale set includes only L3 grayscale, the second grayscale set includes only L0 grayscale, and the gamma voltage of L0 grayscale is adjusted based on the gamma voltage of L3 grayscale; the first grayscale set includes L3 grayscale and L4 grayscale, the second grayscale set includes L0 grayscale and L1 grayscale, the gamma voltage of L0 grayscale is adjusted based on the gamma voltage of L3 grayscale, and the gamma voltage of L1 grayscale is adjusted based on the gamma voltage of L4 grayscale; the first grayscale set includes only L3 grayscale, the second grayscale set includes L0 grayscale and L1 grayscale, the gamma voltage of L0 grayscale is adjusted based on the gamma voltage of L3 grayscale, and the gamma voltage of L1 grayscale is also adjusted based on the gamma voltage of L3 grayscale.

[0057] Step 220: For any second grayscale in the second grayscale set, obtain the first grayscale as the reference voltage from the first grayscale set according to a preset saving strategy; determine the gamma voltage weight value in the first preset relationship according to the result of the smear test performed at a preset brightness value, and determine the gamma voltage of the second grayscale according to the gamma voltage weight value and the reference voltage of the first grayscale; wherein the first preset relationship represents the relationship between the reference voltage and the voltage to be adjusted.

[0058] The preset brightness value may be set to a brightness value at low brightness, such as 2 nit.

[0059] In some embodiments, the number of elements in the first grayscale set is equal to the number of elements in the second grayscale set.

[0060] In some possible situations, different numbers of grayscales may be stored, but the premise is that for any second grayscale in the second grayscale set, a first grayscale serving as a reference voltage must be determined from the first grayscale set according to a preset storage strategy.

[0061] Among them, the preset saving strategy can be set according to actual needs, for example, the gamma voltage of the first grayscale in the second grayscale set is adjusted based on the gamma voltage of the first grayscale in the first grayscale set, and the gamma voltage of the second grayscale in the second grayscale set is adjusted based on the gamma voltage of the second grayscale in the first grayscale set; or, the gamma voltage of the first grayscale in the second grayscale set and the gamma voltage of the second grayscale in the second grayscale set are both adjusted based on the gamma voltage of the first grayscale in the first grayscale set.

[0062] In some embodiments, a method of determining the reference voltage of the first gray scale includes:

[0063] An actual detection result value of the first grayscale voltage is acquired, and the actual detection result value is used as a reference voltage of the first grayscale.

[0064] Optionally, the actual measured value is used as the reference voltage of the first gray scale, and a value obtained by DIC (Deviance Information Criterion, DIC for short) interpolation operation is not used as the reference voltage of the first gray scale as much as possible.

[0065] Optionally, the first preset relationship may be a linear relationship, and K1 is a gamma voltage weight value, which may be determined by a smear test result performed at a preset brightness value.

[0066] In some embodiments, the first preset relationship includes:

[0067] VLx =K1*V Ln

[0068] Among them, V Lx is the gamma voltage of the second grayscale, V Ln is the gamma voltage of the first gray scale, and K1 is the gamma voltage weight value.

[0069] V Ln is the gamma voltage of the first grayscale. The first grayscale Ln can be selected according to actual needs or experience (the specific selection of the first grayscale is related to the aforementioned preset saving strategy). For example, the first grayscale Ln can be selected from L2 grayscale, L3 grayscale, etc.

[0070] Specifically, when performing the smear test, the first grayscale Ln is first determined, and then multiple smear test tests are performed according to the different K1 values ​​that are set. During the test process, the more K1 values ​​are set, the more tests will be performed. On the premise that the impact of the smear is minimized, the value of K1 determined after the final test will be more accurate, that is, the K1 value determined at this time can minimize the impact of the smear. Finally, based on the test results, the optimal value of K1 is determined on the premise that the impact of the smear is minimized. In addition, when performing the smear test, further tests can be performed based on the different first grayscales selected (such as L2, L3, etc.) to determine the optimal value of the gamma voltage weight value K1.

[0071] Step 230: Split the gamma voltage of the second grayscale into three primary color voltages based on the preset three primary colors, and determine the primary color voltage weight values ​​corresponding to the primary color voltages in a second preset relationship according to the smear test results performed at the preset brightness value; wherein the second preset relationship represents the relationship between the primary color voltages and the gamma voltage of the second grayscale.

[0072] Specifically, the preset three primary colors may be Red, Green, and Blue.

[0073] Optionally, the second preset relationship may also be a linear relationship, and K2 to K4 are primary color voltage weight values, which may be determined by a smear test result performed at a preset brightness value.

[0074] In some embodiments, the second preset relationship includes: a first primary color voltage relationship, a second primary color voltage relationship, and a third primary color voltage relationship; wherein,

[0075] The driving voltage corresponding to the first primary color is determined by the first primary color voltage relationship, where the first primary color voltage relationship includes:

[0076] V Lx R=K2*V Lx

[0077] Among them, V Lx is the gamma voltage of the second grayscale, V Lx R is the driving voltage corresponding to the first primary color, and K2 is the primary color voltage weight value corresponding to the first primary color voltage;

[0078] The driving voltage corresponding to the second primary color is determined by the second primary color voltage relationship, where the second primary color voltage relationship includes:

[0079] V Lx G=K3*V Lx

[0080] Among them, V Lx G is the driving voltage corresponding to the second primary color, and K3 is the primary color voltage weight value corresponding to the second primary color voltage;

[0081] The driving voltage corresponding to the third primary color is determined by the third primary color voltage relationship, and the third primary color voltage relationship includes:

[0082] V Lx B=K4*V Lx

[0083] Among them, V Lx B is the driving voltage corresponding to the third primary color, and K4 is the primary color voltage weight value corresponding to the third primary color voltage.

[0084] Specifically, when performing a smear inspection test, multiple smear inspection tests are performed based on the different K2-K4 values ​​that are set. During the test, the more K2-K4 values ​​are set, the more permutations and combinations of K2-K4 there are, and the more tests are performed. Under the premise of minimizing the impact of smear, the final K2-K4 values ​​determined will be more accurate. In other words, the final K2-K4 values ​​determined can minimize the impact of smear. Finally, based on the test results, the optimal K2-K4 values ​​are determined under the premise of minimizing the impact of smear.

[0085] Step 240 : Determine the three primary color voltages of the second grayscale according to the second preset relationship based on the gamma voltage of the second grayscale, and adjust the driving voltages corresponding to the three primary colors according to the three primary color voltages to improve streaking by adjusting the driving voltages of the three primary colors.

[0086] Hereinafter, the present application lists a specific example, in which the technical solution of the present application is further explained and illustrated by taking the adjustment of the voltage of the L0 grayscale as an example.

[0087] Step 1: Change the setting voltage of L0 grayscale; the principle is to reduce the voltage of L0 grayscale from V L0The voltage difference to the specified brightness voltage is used to increase the lighting speed. The conventional settings of the related technology are:

[0088] V L0 =VGMP

[0089] The first step of this application is to set up:

[0090] V L0 =K1*V Ln

[0091] Specific setting requirements include:

[0092] (1) Gamma voltage V of Ln grayscale Ln Generally, the accurate value obtained through actual testing (the specific gamma voltage detection method is not further specified here) should be used. Try not to use the value obtained through DIC interpolation. This is because different screens have different characteristics. If the parameters obtained through interpolation are used, it is easy to cause the screen to have a bright L0 grayscale problem.

[0093] (2) Set n≤10. The reason is that the voltage at low grayscale is closer to the actual value of the screen L0 grayscale without brightness, and it is easier to find the optimal value of K1 by continuously adjusting the value of K1.

[0094] (3) For the gamma voltage weight value K1, the DOE (DESIGN OF EXPERIMENT) value requires that there must be no brightening problem of the L0 grayscale at room temperature, and then the optimal value is selected based on the test results by testing the smear data.

[0095] Among them, VGMP is the gamma voltage value when the product brightness is set to 0; V L0 Refers to the voltage of 0 grayscale, V Ln Refers to the voltage of grayscale n.

[0096] Step 2: Change the R / G / B voltage ratio at L0 grayscale. By splitting and matching the voltage ratios of the R / G / B luminescent materials, the Delta R / G / B specification (i.e., the maximum difference in the brightness ratio of the first frame between R / G / B) can be improved. The principle is that it is difficult to achieve consistent luminescence and lighting speeds for R / G / B materials, and because of the different ratios, different drive voltages are required to adapt them separately. Specific voltage ratio methods include:

[0097] V L0 R=K2*V L0 ;

[0098] V L0 G=K3*V L0 ;

[0099] V L0B=K4*V L0 .

[0100] Among them, V L0 R is the driving voltage corresponding to the Red luminescent material, V L0 G is the driving voltage corresponding to the Green luminescent material, V L0 B is the driving voltage corresponding to the blue luminescent material.

[0101] Specific setup requirements include:

[0102] The primary color voltage weight values ​​K2 to K4 need to be adjusted based on the actual measured data after product production, and are required to meet the corresponding specifications required by the test at different brightness levels.

[0103] Step 3: Verify the results. In this process, the gamma voltage of the L3 grayscale is selected as the reference voltage. After all the data are debugged, it is necessary to ensure that the maximum difference in the first frame brightness ratio of W and the first frame brightness ratio between R / G / B under the L0 grayscale at room temperature can pass the verification, and then produce samples through DOE. The samples must be put into reliability experiments, including at least high / low temperature operation and storage experiments. The experimental results show that there is no abnormal lighting phenomenon in the L0 grayscale during the verification process. For specific experimental results data, please refer to Figure 3 ,exist Figure 3 In Chinese: NG in Result indicates the test failed, and OK in Result indicates the test passed. 60% in Spec indicates that at a test brightness of 2 nit, the brightness of the first frame of W must be at least 2*60% = 1.2 nit. 30% in Spec indicates that the difference between the maximum brightness ratio of the first frame of R / G / B and the minimum brightness ratio of the first frame of R / G / B must be less than or equal to 30%.

[0104] This application also provides a device for improving smearing. This device embodiment can be used to execute the method embodiment of this application. For details not disclosed in this device embodiment, please refer to the method embodiment of this application. The device disclosed in this embodiment includes:

[0105] A first determining module is configured to determine a first grayscale set and a second grayscale set from a preset grayscale set; wherein the second grayscale set stores grayscales for which the gamma voltage is to be adjusted, and the first grayscale set stores grayscales for which the gamma voltage is used as a reference voltage;

[0106] a second determination module configured to, for any second grayscale in the second grayscale set, obtain a first grayscale as a reference voltage from the first grayscale set according to a preset storage strategy; determine a gamma voltage weight value in a first preset relationship based on a smear test result performed at a preset brightness value; and determine a gamma voltage for the second grayscale based on the gamma voltage weight value and the reference voltage for the first grayscale; wherein the first preset relationship represents a relationship between the reference voltage and the voltage to be adjusted;

[0107] a third determining module, configured to split the gamma voltage of the second grayscale into three primary color voltages based on the preset three primary colors, and determine, based on a smear test result performed at the preset brightness value, a primary color voltage weight value corresponding to each primary color voltage in a second preset relationship; wherein the second preset relationship represents a relationship between the primary color voltages and the gamma voltage of the second grayscale;

[0108] The adjustment module is used to determine the three primary color voltages of the second grayscale according to the gamma voltage of the second grayscale through the second preset relationship, and adjust the driving voltages corresponding to the three primary colors according to the three primary color voltages, so as to improve the ghosting by adjusting the driving voltages of the three primary colors.

[0109] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of each module in the ghosting improvement device can refer to the corresponding process in the aforementioned method embodiment, and this embodiment will not be repeated here.

[0110] The present application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can implement the method steps in the aforementioned method embodiment, which will not be repeated here.

[0111] Computer-readable storage media may also include computer programs, data files, data structures, etc., individually or in combination. The computer-readable storage medium or computer program may be specifically designed and understood by those skilled in the art of computer software, or the computer-readable storage medium may be well-known and available to those skilled in the art of computer software. Examples of computer-readable storage media include: magnetic media, such as hard disks, floppy disks, and magnetic tapes; optical media, such as CDROMs and DVDs; magneto-optical media, such as optical disks; and hardware devices specifically configured to store and execute computer programs, such as read-only memory (ROM), random access memory (RAM), flash memory; or servers, app stores, etc. Examples of computer programs include machine code (e.g., code generated by a compiler) and files containing higher-level code that can be executed by a computer using an interpreter. The described hardware devices can be configured to function as one or more software modules to perform the operations and methods described above, and vice versa. In addition, computer-readable storage media can be distributed across networked computer systems, allowing program code or computer programs to be stored and executed in a decentralized manner.

[0112] The present application also provides a computer program product. The computer program product includes a computer program or instructions, which, when executed by a processor, implements all or part of the steps of the method in the aforementioned method embodiment, which will not be repeated in this embodiment.

[0113] Furthermore, the computer program product may include one or more computer executable components configured to perform the embodiments when the program is run; the computer program product may also include a computer program tangibly embodied on a computer-readable medium, the computer program including program code for performing any method in the embodiments of the present disclosure. In such an embodiment, the computer program may be downloaded and installed from a network via a communication component and / or installed from a removable medium.

[0114] The present application also provides a display device, comprising:

[0115] The display module is configured to: display according to the display data;

[0116] The control unit is electrically connected to the display module and is configured to improve the smear generated by the display module when displaying the display data according to the aforementioned smear improvement method.

[0117] The present application also provides an electronic device, which includes the aforementioned display device.

[0118] It should also be understood that the methods or devices disclosed in the embodiments provided in this application may also be implemented in other ways. The method or device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of the methods and devices according to the various embodiments of this application. In this regard, each box in the flowchart or block diagram may represent a module, a computer program segment, or a portion of a computer program, which contains one or more computer programs for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the boxes may occur in an order different from that marked in the drawings, and may actually be executed substantially in parallel, or they may sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and combinations of boxes in the block diagram and / or flowchart, may be implemented using a dedicated hardware-based system that performs the specified functions or actions, or may be implemented using a combination of dedicated hardware and computer programs.

[0119] In this application, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or that are inherent to such process, method, article, or apparatus. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the existence of other identical elements in the process, method, device or equipment including the elements; if there is a description of "first", "second", etc., it is only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features; in the description of this application, unless otherwise specified, the terms "multiple" and "many" mean at least two; if there is a description of a server, it should be noted that the server can be an independent physical server or terminal, or a server cluster composed of multiple physical servers, or a cloud server that can provide basic cloud computing services such as cloud servers, cloud databases, cloud storage and CDN; if there is a description of a smart terminal or mobile device in this application, it should be noted that the smart terminal or mobile device can be a mobile phone, tablet computer, smart watch, netbook, wearable electronic device, personal digital assistant (PDA), augmented reality technology device (AR), virtual reality device (VR), smart TV, smart speaker, personal computer (PC), etc. Computer, referred to as PC), etc., but not limited to this. This application does not specifically limit the specific form of the smart terminal or mobile device.

[0120] Finally, it should be noted that, in the description of this specification, reference to the terms "one embodiment," "some embodiments," "example," "an example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0121] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and the contents described are only embodiments adopted to facilitate understanding of the present application and are not intended to limit the present application. Any person skilled in the art of the present application may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present application, but the scope of protection of the present application shall still be based on the scope defined by the appended claims.

Claims

1. A method for improving smear, characterized in that: The method comprises: Determining a first grayscale set and a second grayscale set from a preset grayscale set; wherein the second grayscale set stores grayscales for which the gamma voltage is to be adjusted, and the first grayscale set stores grayscales for which the gamma voltage is used as a reference voltage; For any second grayscale in the second grayscale set, obtaining a first grayscale as a reference voltage from the first grayscale set according to a preset storage strategy; determining a gamma voltage weight value in a first preset relationship according to a smear test result performed at a preset brightness value, and determining a gamma voltage for the second grayscale according to the gamma voltage weight value and the reference voltage of the first grayscale; wherein the first preset relationship represents a relationship between the reference voltage and the voltage to be adjusted; Splitting the gamma voltage of the second grayscale into three primary color voltages based on the preset three primary colors, and determining primary color voltage weights corresponding to the primary color voltages in a second preset relationship based on a smear test result performed at the preset brightness value; wherein the second preset relationship represents a relationship between the primary color voltages and the gamma voltage of the second grayscale; According to the gamma voltage of the second grayscale, the three primary color voltages of the second grayscale are respectively determined by the second preset relationship, and the driving voltages corresponding to the three primary colors are respectively adjusted according to the three primary color voltages, so as to improve the ghosting by adjusting the driving voltages of the three primary colors.

2. The method for improving smear according to claim 1, wherein: The method of determining the reference voltage of the first gray scale includes: An actual detection result value of the first grayscale voltage is acquired, and the actual detection result value is used as a reference voltage of the first grayscale.

3. The method for improving smear according to claim 1, wherein: The number of elements in the first grayscale set is equal to the number of elements in the second grayscale set.

4. The method for improving smear according to claim 1, wherein: The preset grayscale set includes grayscale L0 to grayscale L10; Both the first grayscale set and the second grayscale set store one or more grayscales from L0 to L10.

5. The method for improving smear according to claim 1, wherein: The first preset relationship includes: In Lx =K1*V Ln Among them, V Lx is the gamma voltage of the second grayscale, V Ln is the gamma voltage of the first gray scale, and K1 is the gamma voltage weight value.

6. The method for improving smear according to claim 1, wherein: The second preset relationship includes: a first primary color voltage relationship, a second primary color voltage relationship and a third primary color voltage relationship; wherein, The driving voltage corresponding to the first primary color is determined by the first primary color voltage relationship, where the first primary color voltage relationship includes: V Lx R=K2*V Lx Among them, V Lx is the gamma voltage of the second grayscale, V Lx R is the driving voltage corresponding to the first primary color, and K2 is the primary color voltage weight value corresponding to the first primary color voltage; The driving voltage corresponding to the second primary color is determined by the second primary color voltage relationship, where the second primary color voltage relationship includes: V Lx G=K3*V Lx Among them, V Lx G is the driving voltage corresponding to the second primary color, and K3 is the primary color voltage weight value corresponding to the second primary color voltage; The driving voltage corresponding to the third primary color is determined by the third primary color voltage relationship, and the third primary color voltage relationship includes: V Lx B=K4*V Lx Among them, V Lx B is the driving voltage corresponding to the third primary color, and K4 is the primary color voltage weight value corresponding to the third primary color voltage.

7. A device for improving smear, characterized in that: include: A first determining module is configured to determine a first grayscale set and a second grayscale set from a preset grayscale set; wherein the second grayscale set stores grayscales for which the gamma voltage is to be adjusted, and the first grayscale set stores grayscales for which the gamma voltage is used as a reference voltage; a second determination module configured to, for any second grayscale in the second grayscale set, obtain a first grayscale as a reference voltage from the first grayscale set according to a preset storage strategy; determine a gamma voltage weight value in a first preset relationship based on a smear test result performed at a preset brightness value; and determine a gamma voltage for the second grayscale based on the gamma voltage weight value and the reference voltage for the first grayscale; wherein the first preset relationship represents a relationship between the reference voltage and the voltage to be adjusted; a third determining module, configured to split the gamma voltage of the second grayscale into three primary color voltages based on the preset three primary colors, and determine, based on a smear test result performed at the preset brightness value, a primary color voltage weight value corresponding to each primary color voltage in a second preset relationship; wherein the second preset relationship represents a relationship between the primary color voltages and the gamma voltage of the second grayscale; The adjustment module is used to determine the three primary color voltages of the second grayscale according to the gamma voltage of the second grayscale through the second preset relationship, and adjust the driving voltages corresponding to the three primary colors according to the three primary color voltages, so as to improve the ghosting by adjusting the driving voltages of the three primary colors.

8. A computer program product comprising a computer program or instructions, characterized in that: When the computer program or instructions are executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium, characterized in that The computer program stored in the computer-readable storage medium, when executed by one or more processors, implements the steps of the method according to any one of claims 1 to 6.

10. A display device, characterized in that: include: The display module is configured to: display according to the display data; A control unit is electrically connected to the display module and is configured to: improve the smear generated by the display module when displaying the display data according to the method according to any one of claims 1 to 6.

11. An electronic device, characterized in that: The display device according to claim 10 is included.

Citation Information

Patent Citations

  • Gamma voltage regulation method and device

    CN105096896A

  • Gamma debugging method and device of display module and display method of display module

    CN115588406A