WO2020125727A1 - Method for adjusting liquid crystal display viewing angle, liquid crystal display and storage medium - Google Patents

Abstract

A method for adjusting a liquid crystal display viewing angle, a liquid crystal display and a storage medium, wherein the method comprises the following steps: determining a user's line-of-sight direction, and determining a corresponding viewing angle according to the line-of-sight direction (S10); obtaining a corresponding Gamma voltage according to the viewing angle, and adjusting the viewing angle of a liquid crystal display according to the Gamma voltage (S20).

Description

Title of invention: Method for adjusting viewing angle of liquid crystal display, liquid crystal display and storage medium

[0001] This application requires the priority of the Chinese patent application filed on December 20, 2018 with the Chinese Patent Office, application number 201811588615.5, and the invention titled "Method of Adjusting Viewing Angle of Liquid Crystal Display, Liquid Crystal Display, and Storage Media," The entire content is incorporated into the application by reference.

Technical field

[0002] The present application relates to the field of liquid crystal displays, and in particular, to a method for adjusting the viewing angle of a liquid crystal display, a liquid crystal display, and a storage medium.

Background technique

[0003] At present, the liquid crystal display technology has been widely used in various fields such as televisions, mobile phones, in-vehicle displays, industry and medical treatment. The main principle of liquid crystal display is to modulate the transmittance of polarized light through the birefringence effect of liquid crystal molecules to form a controllable gray-scale contrast to achieve the purpose of displaying content. 5 See in the prior art, by changing the Ga_a voltage of the LCD, the viewing angle of the LCD can be changed, but the viewing angle of the LCD cannot be adjusted after leaving the factory.

Summary of the invention

technical problem

Solution to the problem

Technical solution

[0004] The main purpose of the present application is to provide a method for adjusting the viewing angle of a liquid crystal display, a liquid crystal display, and a storage medium to solve the problem that the viewing angle of the liquid crystal display cannot be adjusted.

[0005] In order to achieve the above object, the present application provides a method for adjusting the viewing angle of a liquid crystal display. The method for adjusting the viewing angle of a liquid crystal display includes the following steps:

[0006] Determine the direction of the user's line of sight, and determine the corresponding viewing angle according to the direction of the line of sight;

[0007] The corresponding Gamma voltage is obtained according to the viewing angle to adjust the viewing angle of the liquid crystal display according to the Gamma voltage. [0008] Optionally, the step of obtaining the corresponding Gamma voltage according to the viewing angle includes:

[0009] determining a corresponding preset reference viewing angle according to the viewing angle;

[0010] The Gamma voltage corresponding to the viewing angle is calculated according to the standard Gamma voltage corresponding to the preset reference viewing angle respectively.

[0011] Optionally, the preset reference viewing angle corresponding to the viewing angle is the preset reference viewing angle closest to the viewing angle;

[0012] The step of calculating the Ga_a voltage corresponding to the viewing angle according to the standard Gamma voltage corresponding to the preset reference viewing angle includes:

[0013] According to the preset reference viewing angle closest to the viewing angle, obtain a corresponding standard Gamma voltage, and use the corresponding standard Gamma voltage as the Gamma voltage corresponding to the viewing angle.

[0014] Optionally, the preset reference viewing angle corresponding to the viewing angle is the closest preset reference viewing angle corresponding to both sides of the viewing angle, respectively;

[0015] The step of calculating the Ga_a voltage corresponding to the viewing angle according to the standard Gamma voltage corresponding to the preset reference viewing angle includes:

[0016] Obtain corresponding standard Gamma voltages according to the closest preset reference viewing angles corresponding to the two sides of the viewing angle respectively, and calculate the Gamma voltage corresponding to the viewing angle according to the corresponding standard Ga_ai pressure.

[0017] Optionally, the corresponding standard Gamma voltage is acquired according to the closest preset reference viewing angles corresponding to the two sides of the viewing angle, respectively, and the Ga mma voltage corresponding to the viewing angle is calculated according to the corresponding standard Gamma voltage The steps include:

[0018] Obtaining standard Gamma voltages corresponding to the preset reference viewing angles closest to both sides of the viewing angle respectively;

[0019] determining the weighting coefficient of the standard Gamma voltage according to the angle difference between the viewing angle and the preset reference viewing angle closest to both sides;

[0020] The Gamma voltage corresponding to the viewing angle is obtained according to the standard Gamma voltage corresponding to the preset reference viewing angle on both sides of the viewing angle and the corresponding weight coefficient.

[0021] Optionally, when there are multiple users, the step of obtaining the corresponding Gamma voltage according to the viewing angle to adjust the viewing angle of the liquid crystal display according to the Ga_a voltage includes:

[0022] The Gamma voltage corresponding to each user is calculated according to the perspective of each user;

[0023] The optimized Gamma voltage is calculated according to the Gamma voltage corresponding to each user, according to the optimized G a_a voltage adjusts the viewing angle of the LCD.

[0024] Optionally, the step of calculating the optimized Gamma voltage according to the Gamma voltage corresponding to each user includes:

[0025] The weight coefficients corresponding to each Gamma voltage are determined according to the Gamma voltage corresponding to each user; [0026] A plurality of Ga_a voltages are calculated according to the Gamma voltage corresponding to each user and the weight coefficient corresponding to each Gamma voltage, respectively Weighted average sum of the weighted average sum as the optimized Gamma voltage

[0027] Optionally, the step of determining weight coefficients corresponding to each Gamma voltage according to the Gamma voltage corresponding to each user includes:

[0028] The contrast of the LCD under each gamma voltage is obtained according to the gamma voltage corresponding to each user

[0029] The weighting coefficients corresponding to each Gamma voltage are determined according to all contrasts.

[0030] In addition, in order to achieve the above object, the present application also provides a liquid crystal display, the liquid crystal display includes: a memory, a processor, and an adjustable liquid crystal display stored on the memory and capable of running on the processor Viewing angle program, when the program for adjusting the viewing angle of the liquid crystal display is executed by the processor, the steps of the method for adjusting the viewing angle of the liquid crystal display as described above are implemented.

[0031] In addition, in order to achieve the above object, the present application also provides a computer-readable storage medium, the computer-readable storage medium stores a liquid crystal display viewing angle adjustment program, the liquid crystal display viewing angle adjustment program is When the processor executes, it implements the steps of the method for adjusting the viewing angle of the liquid crystal display as described above.

[0032] A method for adjusting a viewing angle of a liquid crystal display, a liquid crystal display, and a storage medium proposed in the embodiments of the present application, the display acquires a line of sight of a user who observes the display, and determines the viewing angle of the user at this time according to the direction of the user . After obtaining the viewing angle of the user, the processor obtains the corresponding Gam ma voltage according to the viewing angle, and sets the actual Gamma voltage of the display to the Gamma voltage obtained according to the viewing angle, so that after the LCD is shipped from the factory, it can observe different viewing angles of the display according to the user The viewing angle of the liquid crystal display is flexibly adjusted, so that the user can clearly observe the content displayed on the display, so as to avoid the phenomenon of color distortion when the user views the content of the display and affecting the viewing effect.

Beneficial effects of invention Brief description of the drawings

BRIEF DESCRIPTION

[0033] FIG. 1 is a schematic structural diagram of a device for a hardware operating environment involved in an embodiment of the present application;

[0034] FIG. 2 is a schematic flowchart of a first embodiment of a method for adjusting a viewing angle of a liquid crystal display of the present application;

[0035] FIG. 3 is a detailed flowchart of step S20 in the second embodiment of the method for adjusting the viewing angle of the liquid crystal display of the present application;

[0036] FIG. 4 is a detailed flowchart of step S23 in the fourth embodiment of the method for adjusting the viewing angle of the liquid crystal display of the present application;

[0037] FIG. 5 is a fitting curve of the contrast with the change of the viewing angle in the viewable angle range of the display in the seventh embodiment of the method for adjusting the viewing angle of the liquid crystal display of the present application.

[0038] The implementation, functional characteristics, and advantages of the present application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

The best embodiment of the invention

Best Mode of the Invention

[0039] It should be understood that the specific embodiments described herein are only used to explain the application, and are not intended to limit the application.

[0040] As shown in FIG. 1, FIG. 1 is a schematic structural diagram of a device for a hardware operating environment according to an embodiment of the present application.

[0041] The terminal in the embodiment of the present application may be a display, or may be a TV, a smartphone, a tablet computer, an e-book reader, an MP3 (Moving Picture Experts Group Audio Layer III, dynamic image expert compression standard audio layer 3) player, MP4 (Moving Picture Experts Group Audio Layer IV

, Dynamic image experts compress standard audio layer 4) Terminal devices with display function such as players, portable computers, etc.

[0042] As shown in FIG. 1, the terminal may include: a processor 1001, such as a CRJ, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to implement connection communication between these components. The user interface 1003 may include a display (Display) and an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (non-volatile memory), such as a disk memory. The memory 1005 may optionally be independent of the aforementioned processor 100 1 storage device.

[0043] Optionally, the terminal may further include a camera, an RF (Radio Frequency, Radio Frequency) circuit, a sensor, an audio circuit, a WiFi module, and so on. Of course, the hardware device may also be configured with other sensors such as a gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc., which will not be repeated here.

[0044] The processor 1001 may be used to call a program for adjusting the viewing angle of the liquid crystal display stored in the memory 1005, and perform the steps described in each implementation in the following method for adjusting the viewing angle of the liquid crystal display:

[0045] determining the direction of the user's line of sight, and determining the corresponding viewing angle according to the direction of the line of sight;

[0046] The corresponding Gamma voltage is obtained according to the viewing angle to adjust the viewing angle of the liquid crystal display according to the Gamma voltage.

[0047] Further, the processor 1001 may be used to call a program for adjusting the viewing angle of the liquid crystal display stored in the memory 1005, and also perform the following operations:

[0048] determining a corresponding preset reference viewing angle according to the viewing angle;

[0049] The Gamma voltage corresponding to the viewing angle is calculated according to the standard Gamma voltage corresponding to the preset reference viewing angle respectively.

[0050] Further, according to the preset reference viewing angle closest to the viewing angle, the corresponding standard Gamma voltage is obtained, and the corresponding standard Gamma voltage is used as the Gamma voltage corresponding to the viewing angle.

[0051] Further, the processor 1001 may be used to call a program for adjusting the viewing angle of the liquid crystal display stored in the memory 1005, and also perform the following operations:

[0052] Obtain corresponding standard Gamma voltages according to the closest preset reference viewing angles corresponding to the two sides of the viewing angle respectively, and calculate the Gamma voltage corresponding to the viewing angle according to the corresponding standard Ga_ai pressure.

[0053] Further, the processor 1001 may be used to call a program for adjusting the viewing angle of the liquid crystal display stored in the memory 1005, and also perform the following operations:

[0054] Obtaining standard Gamma voltages corresponding to the preset reference viewing angles closest to both sides of the viewing angle respectively;

[0055] determining the weighting coefficient of the standard Gamma voltage according to the angle difference between the viewing angle and the preset reference viewing angle closest to both sides;

[0056] The Gamma voltage corresponding to the viewing angle is obtained according to the standard Gamma voltage corresponding to the preset reference viewing angle on both sides of the viewing angle and the corresponding weight coefficient.

[0057] Further, the processor 1001 may be used to call the adjustment liquid crystal display stored in the memory 1005 to view The angle program also performs the following operations:

[0058] When there are multiple users, the Gamma voltage corresponding to each user is calculated according to the perspective of each user;

[0059] The optimized Gamma voltage is calculated according to the Gamma voltage corresponding to each user, so as to adjust the viewing angle of the liquid crystal display according to the optimized G a_a voltage.

[0060] Further, the processor 1001 may be used to call a program for adjusting the viewing angle of the liquid crystal display stored in the memory 1005, and also perform the following operations:

[0061] Determine the weight coefficients corresponding to each Gamma voltage according to the Gamma voltage corresponding to each user; [0062] Calculate multiple Ga_a voltages based on the Gamma voltage corresponding to each user and the weight coefficient corresponding to each Gamma voltage, respectively Weighted average sum of the weighted average sum as the optimized Gamma voltage

[0063] Further, the processor 1001 may be used to call a program for adjusting the viewing angle of the liquid crystal display stored in the memory 1005, and also perform the following operations:

[0064] Obtain the contrast of the LCD under each gamma voltage according to the gamma voltage corresponding to each user

[0065] The weighting coefficients corresponding to each Gamma voltage are determined according to all contrasts.

[0066] Those skilled in the art may understand that the terminal structure shown in FIG. 1 does not constitute a limitation on the terminal, and may include more or fewer components than shown, or combine certain components, or arrange different components .

[0067] Please refer to FIG. 2, FIG. 2 is a schematic flow chart of the first embodiment of the method for adjusting the viewing angle of the liquid crystal display of the present application, wherein the method for adjusting the viewing angle of the liquid crystal display includes the following steps:

[0068] Step S10: Determine the user's line of sight direction, and determine the corresponding viewing angle according to the line of sight direction;

[0069] The processor of the display can obtain the direction of the user's line of sight when the user faces the display in a normal working state. In this embodiment, the horizontal viewing angle of the display is used as an example for illustration. The processor is based on the user's line of sight and the user's The actual position can derive the angle between the user's realization and the vertical direction of the display when the user views the display, that is, the viewing angle or line-of-sight angle of the user viewing the display.

[0070] The viewing angle of the display represents the set of viewing angles at which the user clearly observes all content on the display from different directions. When the viewing angle of the user is within the viewing angle range of the display, the user can clearly observe the content displayed on the display ; And when the user’s viewing angle exceeds the viewing angle range of the display, it will produce The color distortion phenomenon, the user cannot clearly and accurately observe the content displayed on the display. The viewing angle when the user's line of sight is perpendicular to the display is recorded as 0°. When the angle formed by the user's line of sight and the vertical direction of the display is on the left side of the vertical direction of the display, the line of sight angle is a negative value; When the angle formed by the vertical direction of the display is on the right side of the vertical direction of the display, the line-of-sight angle is a positive value, that is, the user's viewing angle ranges from -90° to 90°. It should be noted that the viewing angle of the display is theoretically in the range of 180°. In actual use, the viewing angle range of the display is usually less than 180°.

[0071] Step S20: Obtain the corresponding gamma Gamma voltage according to the viewing angle to adjust the viewing angle of the LCD according to the Gamma voltage.

[0072] After determining the viewing angle of the user viewing the display according to the direction of the user's line of sight, the processor calculates and calculates the relevant parameters corresponding to the display when the viewing angle of the user can clearly view the content of the display at this time based on the viewing angle of the actual viewing by the user. In this embodiment, the Gamma voltage parameter of the display is used as an example. After determining the viewing angle of the user to observe the display, the processor obtains the corresponding Gamma voltage when the display can be clearly observed from the user's viewing angle according to the optimization algorithm of the Gamma voltage, and the display The Gamma voltage is set to the Ga_a voltage obtained according to the optimization algorithm to adjust the viewing angle range of the display so that the user can clearly observe the content displayed on the display.

[0073] In this embodiment, the processor of the display can acquire the direction of the user's line of sight observing the display, and determine the viewing angle of the user at this time according to the direction of the user's line of sight. After obtaining the user's angle of view, the processor obtains the corresponding Gamma voltage according to the angle of view, and sets the actual Gamma voltage of the display to the Gamma voltage obtained according to the angle of view, so that after the LCD is shipped from the factory, the user can observe different angles of the display flexibly The viewing angle of the liquid crystal display is adjusted, so that the user can clearly observe the content displayed on the display, to avoid the phenomenon of color distortion when the user views the content of the display and affecting the viewing effect.

[0074] Further, referring to FIG. 3, FIG. 3 is a detailed flowchart of step S20 in the second embodiment of the method for adjusting the viewing angle of the liquid crystal display of the present application. In this embodiment, the step S20 is based on the The steps of obtaining the corresponding Ga_a voltage from the perspective include:

[0075] Step S21: Determine a corresponding preset reference viewing angle according to the viewing angle;

[0076] Step S22: Calculate the Gamma voltage corresponding to the viewing angle according to the standard Gamma voltage corresponding to the preset reference viewing angle, respectively. [0077] In this embodiment, after determining the viewing angle of the user viewing the display, the display determines the corresponding preset reference viewing angle according to the viewing angle of the user. The display tests multiple reference viewing angles in advance to obtain the standard Ga_a voltage corresponding to each reference viewing angle. Optionally, multiple preset reference viewing angles are preset in the display. For each preset reference viewing angle, measure the VT (Voltage-Transmittance, voltage-transmittance) curve under the preset reference viewing angle, compare the VT curve with the standard Gamma curve, calculate the VT curve and the standard The difference in the transmittance of the gamma curve at the same voltage, and the voltage corresponding to the minimum value of the difference in transmittance is taken as the standard _gamma voltage of the reference viewing angle. It should be noted that, when setting the reference visual angle value, the reference visual angle value may be set at intervals of the same angle difference; or the reference visual angle value may be set centrally around the visual angle number of 0°. In addition, by increasing the number of preset reference viewing angles, the standard Ga_a voltage corresponding to the preset reference viewing angle can be increased, so that the Ga_ai corresponding to the user perspective can be calculated according to the preset reference viewing angle and the corresponding standard Ga_a voltage The pressure result is more accurate, which improves the accuracy of calculating the Gamma voltage corresponding to the user's perspective.

[0078] After obtaining the corresponding reference viewing angle from the reference viewing angle according to the user’s viewing angle, the Gamma voltage corresponding to the user’s actual viewing angle is calculated using the standard Gamma voltage value corresponding to the reference viewing angle, so that The Gamma voltage is set to the Gamma voltage corresponding to the user's viewing angle to adjust the viewing angle of the display, allowing users to clearly view the contents of the display.

[0079] Further, in the second embodiment of the method for adjusting the viewing angle of a liquid crystal display of the present application, the preset reference viewing angle corresponding to the viewing angle is the preset reference viewing angle closest to the viewing angle, Step S22: The step of calculating the Ga_a voltage corresponding to the viewing angle according to the standard Ga_a voltage corresponding to the preset reference viewing angle includes:

[0080] Step S221: Obtain the corresponding standard Gamma voltage according to the preset reference viewing angle closest to the viewing angle, and use the corresponding standard Gamma voltage as the Gamma voltage corresponding to the viewing angle.

[0081] In this embodiment, after determining the user's viewing angle, the display can determine the corresponding preset reference viewing angle according to the user's viewing angle, and a plurality of reference viewing angles and corresponding reference viewing angles are pre-stored in the display Ga_a voltage. After obtaining the angle value of the user's perspective, among the multiple preset reference viewing angles, the preset reference visual angle closest to the angle value of the user's perspective is taken as the preset reference visual angle corresponding to the user's perspective. Obtain the standard Gamma voltage corresponding to the reference viewing angle, and apply the standard Gamma voltage Press the Gamma voltage corresponding to the user's viewing angle, and adjust the actual Gamma voltage of the display to the standard Gamma voltage, so that the user at this viewing angle can clearly see the content displayed on the display

[0082] Obviously, when the user viewing angle coincides with a reference viewing angle in a plurality of preset reference viewing angles, the standard Ga_ai pressure corresponding to the preset reference viewing angle is the Gamma voltage corresponding to the current viewing angle of the user

[0083] Further, in the third embodiment of the method for adjusting the viewing angle of a liquid crystal display of the present application, the preset reference viewing angle corresponding to the viewing angle is the closest preset reference corresponding to the two sides of the viewing angle respectively Viewing angle, in step S22, the step of calculating the Ga_a voltage corresponding to the viewing angle according to the standard Gamma voltage corresponding to the preset reference viewing angle includes:

[0084] Step S23: Obtain the corresponding standard Gamma voltage according to the closest preset reference viewing angles corresponding to the two sides of the viewing angle respectively, and calculate the Gam ma voltage corresponding to the viewing angle according to the corresponding standard Gamma voltage.

[0085] In this embodiment, after determining the user's viewing angle, the display can determine the corresponding preset reference viewing angle according to the user's viewing angle, the display prestores a plurality of reference viewing angles and corresponding reference viewing angles Ga_a voltage, after obtaining the angle value of the user's viewing angle, select the preset reference viewing angle closest to both sides from multiple reference viewing angles. Wherein, the closest preset reference viewing angle on the right side of the user's viewing angle is a reference viewing angle greater than the viewing angle value and closest to the viewing angle, and the closest preset reference viewing angle on the left side of the user's viewing angle is less than the viewing angle value And the reference viewing angle closest to the viewing angle. After determining the closest preset reference viewing angle corresponding to both sides and the standard Gam ma voltage corresponding to the preset reference viewing angle, the Ga mma voltage corresponding to the actual viewing angle of the user is calculated according to the optimization algorithm in the display processor . Since the user's viewing angle is located between two adjacent reference viewing angles in the preset multiple reference viewing angles, the two reference viewing angles on both sides of the user's actual viewing angle and the corresponding Gamma values can be passed The set algorithm calculates that the user's viewing angle corresponds to the Ga_a voltage, and sets it to the actual Gamma voltage of the display to enable the user to observe the content on the display more clearly and comfortably.

[0086] It should be noted that when the angle value of the user’s viewing angle is the same as a preset reference viewing angle among multiple preset reference viewing angles, the standard Ga_a voltage corresponding to the preset reference viewing angle may be used Gamma voltage corresponding to the user's perspective. [0087] Further, referring to FIG. 4, FIG. 4 is a detailed flowchart of step S23 in the fourth embodiment of the method for adjusting the viewing angle of the liquid crystal display of the present application. In this embodiment, the step S23 is based on The steps corresponding to the closest preset reference viewing angle corresponding to the side, obtaining the corresponding standard Ga_a voltage, and calculating the Gamma voltage corresponding to the viewing angle according to the corresponding standard Ga_ai pressure include:

[0088] Step S231: Obtain the standard Gamma voltages corresponding to the preset reference viewing angles closest to both sides of the viewing angle respectively;

[0089] Step S232: Determine the weighting coefficient of the standard Ga_a voltage according to the angle difference between the viewing angle and the preset reference viewing angle closest to both sides;

[0090] Step S233: Obtain the Gamma voltage corresponding to the viewing angle according to the standard Gamma voltage corresponding to the preset reference viewing angle on both sides of the viewing angle and the corresponding weight coefficient.

[0091] In this embodiment, the processor in the display calculates the viewing angle of the user after obtaining the preset reference viewing angle closest to both sides of the user's viewing angle and the standard Ga_ai pressure corresponding to the preset reference viewing angle The angle difference between the value and the angle value of the reference viewing angle on the left and right sides, the weight coefficients of the two standard Ga_a voltages are determined according to the calculated angle difference, and the weight coefficients of the two standard Gamma voltages are weighted by the two standard Ga_a voltages The average sum, the calculated weighted average sum is used as the gamma voltage corresponding to the user's perspective.

[0092] Optionally, when the angle difference between the user’s perspective and the reference viewing angles on the left and right sides is a and (3, respectively, G1 and G2 are the standards corresponding to the reference viewing angles on the left and right sides Gamma voltage, then the Gamma voltage corresponding to the user's perspective can be based on the formula:

[0093] G=G1 ((3 / (a+(3)) +G2 (a/ (a+(3) ).

[0094] It should be noted that, among the preset reference viewing angles set on the display, the maximum and minimum values of the preset reference viewing angle are the extreme values of the display viewing angle, that is, when the user’s viewing angle exceeds the preset reference viewing angle When the maximum value of the angle is lower than the minimum value of the preset reference viewing angle, the Ga_a voltage of the display within the adjustable range cannot enable the user to clearly observe all the contents of the display, that is, the user's viewing angle is at the actual viewing angle of the display The Gamma voltage of the monitor can be adjusted within the range so that the user can clearly observe the contents of the monitor. Within the actual viewing angle range of the display, the more preset reference viewing angles, the more accurate the G amma voltage corresponding to the user viewing angle calculated based on the standard Ga_a voltage corresponding to the preset reference viewing angles. [0095] Further, in the fifth embodiment of the method for adjusting the viewing angle of a liquid crystal display of the present application, when there are multiple users, in step S20, a corresponding Gamma voltage is obtained according to the viewing angle to adjust according to the Gamma voltage The viewing angle of the LCD monitor includes:

[0096] Step S24, respectively calculate the Gamma voltage corresponding to each user according to each user’s perspective; [0097] Step S25, calculate the optimized Gamma voltage according to the Gamma voltage corresponding to each user, to optimize the Ga_a voltage according to the Adjust the viewing angle of the LCD display.

[0098] In this embodiment, when there are multiple users observing the display, the display determines the viewing angle of each user separately, and calculates the Ga_a voltage corresponding to the viewing angle of the user according to the viewing angle of each user. After determining the angle of view of each user and the Ga_ai pressure corresponding to the angle of view, the optimized Gamma voltage is calculated according to a preset algorithm, and the Gamma voltage of the display is set to the optimized Gamma voltage. Under the optimized Gamma voltage, the display can make the display satisfy multiple users to observe the content of the display at the same time, and adjust the Ga_a voltage of the display to the optimized Gamma voltage according to the actual viewing angle of the user, so that multiple users can clearly observe the display Everything displayed.

[0099] Further, in the sixth embodiment of the method for adjusting the viewing angle of the liquid crystal display of the present application, in step S25, the step of calculating the optimized Gamma voltage according to the Gamma voltage corresponding to each user includes: [0100] Step S251 , Determine the weight coefficient corresponding to each Gamma voltage according to the Gamma voltage corresponding to each user;

[0101] Step S252: Calculate a weighted average sum of multiple Ga_a voltages according to the Gamma voltage corresponding to each user and the weight coefficient corresponding to each Gamma voltage, and use the weighted average sum as the optimized Gamma voltage _°

[0102] In this embodiment, after determining the viewing angle of each user and the Gamma voltage corresponding to the viewing angle, the display calculates the weighting coefficient corresponding to each Gamma voltage through an algorithm preset in the display, according to multiple Ga_a The voltage and its corresponding weight coefficient are used to calculate the weighted average sum, and the weighted average sum is used as the optimized Ga_a voltage to adjust the voltage parameters of the display. The monitor dynamically calculates the optimal Ga_a voltage of the monitor under the observation of the current user by actually observing the number of users of the monitor, the viewing angle corresponding to the user, and the Ga_a voltage corresponding to the viewing angle. By adjusting the Gamma voltage of the monitor, multiple users Able to clearly observe the display content of the display under different viewing angles.

[0103] Further, in the seventh embodiment of the method for adjusting the viewing angle of the liquid crystal display of the present application, the steps S251. The step of determining weight coefficients corresponding to each Gamma voltage according to the Gamma voltage corresponding to each user includes:

[0104] Step S252: Obtain the contrast of the liquid crystal display under each gamma voltage according to the gamma voltage corresponding to each user;

[0105] Step S253: Determine weight coefficients corresponding to each Gamma voltage according to all contrasts.

[0106] In this embodiment, a plurality of reference viewing angles and Ga mma voltages corresponding to the reference viewing angles are preset in the display, the display sets the voltage parameter to the Gamma voltage corresponding to each reference viewing angle, and calculates The contrast of the display under the Ga_a voltage is obtained, so as to obtain a fitting curve where the contrast changes with the viewing angle in the viewing angle range of the display. According to the observation angle of each user and the Ga_a voltage corresponding to the angle of view among multiple users, the contrast corresponding to the corresponding angle of view can be obtained from the fitting curve, and the contrast corresponding to the actual angle of view of each user is calculated by a preset weight coefficient algorithm The weight coefficient of the G amma voltage corresponding to each viewing angle is shown. The weight coefficient of each viewing angle is calculated according to the contrast of the display under the Gamma voltage corresponding to the actual viewing angle of the user, which can divide the importance of different viewing angles for adjusting the voltage parameters of the display, that is, the optimization for the final calculation under different viewing angles The influence of the Ga_a voltage is different, which enhances the adaptability of the display when observed by multiple users.

[0107] FIG. 5 is a fitting curve generated by the contrast of the display under the Gamma voltage corresponding to each reference viewing angle, and the contrast changes with the viewing angle in the range of the viewing angle of the display. According to the fitting curve, the derivative of this point on the corresponding fitting curve under any viewing angle 0 can be obtained. For example, as shown in FIG. 5, R1, R2, and R3 are the derivatives of the points corresponding to the angles 01, 02, and 03 on the fitting curve. When there are three users whose angles are 01, 02, and 03, The weight coefficient of the Ga_a voltage corresponding to each user's perspective is:

[0108] Wi=Ri/ (R1+R2+R3) (i=l,2,3)

[0109] As can be seen from FIG. 5, when the viewing angle of the user approaches 0°, the derivative of the point on the fitting curve corresponding to the viewing angle tends to zero, that is, the closer the viewing angle is to the direction perpendicular to the display, the corresponding The lower the weight coefficient of the Ga_ai pressure; the farther the viewing angle is from the direction perpendicular to the display panel, the higher the weight coefficient of the Ga_a voltage corresponding to the viewing angle. That is, the gamma voltage corresponding to the more skewed user's viewing angle occupies a larger weight coefficient in the calculation of the optimized gamma voltage.

[0110] Obviously, the weight coefficient of the Gamma voltage corresponding to each viewing angle may also be set as the weight coefficient The exponential or linear correlation of the derivative of the point on the fitting curve corresponding to this viewing angle. Under the setting of this type of weighting coefficient, the user's viewing angle deviating from the direction of the vertical display panel is more sensitive. In the case of multiple users viewing the display, the direction of the more sensitive user's viewing angle determines the optimal Ga_a voltage.

[0111] Optionally, the weighting coefficient of the Gamma voltage corresponding to the perspective of each user may also be set as:

[0112] W1: W2: W3=l/rl: l/r2:

l/r3 (rl, r2, and r3 are the contrasts corresponding to 01, 02, 03 on the fitting curve)

[0113] That is, the weight coefficient corresponding to the angle of view of each user is inversely proportional to the contrast under the angle of view. Under the setting of this weight coefficient, since the contrast corresponding to the angle of view of the user close to the direction of the vertical display panel is relatively large, optimizing the Gamma voltage It is determined by the gamma voltage corresponding to the user's viewing angle in the vertical direction.

[0114] It should be noted that the algorithm of the contrast loss coefficient of the display under the gamma voltage corresponding to the user's viewing angle can be modified according to different requirements, which will not be repeated here.

[0115] Further, in the eighth embodiment of the method for adjusting the viewing angle of the liquid crystal display of the present application, in step S10, the step of determining the direction of the user's line of sight includes:

[0116] Step S11: Obtain user image data captured by the camera module;

[0117] Step S12: Determine the user's line of sight direction according to the user image data.

[0118] In this embodiment, a camera module is provided on the display. When the display is in a normal operating state, the camera module can obtain the image data of the user who observes the display. After the user image data, the user's observation position and the line of sight of the user's observation display can be determined according to the user's image data. Through the camera module on the display, the direction of the user's line of sight can be easily and conveniently obtained, so that the display can obtain the user's angle of view and calculate the corresponding Gamma voltage, thereby adjusting the voltage parameters of the display.

[0119] In addition, an embodiment of the present application also provides a computer-readable storage medium on which a program for adjusting the viewing angle of the liquid crystal display is stored. The storage medium may be the memory 1005 in the terminal of FIG. 1, or may be a ROM, for example. (Read-Only Memory, read-only memory)/RAM (Random Access Memory, random access memory), at least one of a magnetic disk, an optical disk, and the computer-readable storage medium includes several instructions to enable one to process The terminal device of the device (which may be a mobile phone, a computer, a server, or a TV, etc.) executes the methods described in the embodiments of this application. [0120] It can be understood that, in the description of this specification, reference is made to the terms “one embodiment”, “another embodiment”, “other embodiments”, or “first embodiment to first embodiment”, etc. The description means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expression of the above term does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in any one or more embodiments or examples.

[0121] It should be noted that in this article, the terms “include”, “include”, or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or system that includes a series of elements not only includes Those elements, but also include other elements that are not explicitly listed, or include elements inherent to such processes, methods, objects, or systems. In the absence of more restrictions, the element defined by the sentence "including a ..." does not exclude that there are other identical elements in the process, method, article or system that includes the element.

[0122] The sequence numbers of the above embodiments of the present application are for description only, and do not represent the advantages and disadvantages of the embodiments.

[0123] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods in the above embodiments can be implemented by means of software plus a necessary general hardware platform, which can of course also be implemented by hardware, but in many cases the former Is a better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or part that contributes to the existing technology, and the computer software product is stored in a storage medium (such as ROM/RAM) as described above , Magnetic disks, and optical disks, including several instructions to enable a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the embodiments of the present application.

[0124] The above is only an optional embodiment of the present application, and does not limit the scope of the patent of the present application. Any change to the equivalent structure or equivalent process made by the description and drawings of this application, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of this application.

Claims

Claims

[Claim 1] A method for adjusting the viewing angle of a liquid crystal display, including the following steps:

Determine the direction of the user's line of sight, and determine the corresponding viewing angle according to the direction of the line of sight; obtain the corresponding gamma gamma voltage according to the viewing angle, to adjust the viewing angle of the liquid crystal display according to the gamma voltage.

[Claim 2] The method for adjusting the viewing angle of a liquid crystal display according to claim 1, wherein the step of obtaining a corresponding Gamma voltage according to the viewing angle includes: determining a corresponding preset reference visual according to the viewing angle Angle

The Gamma voltage corresponding to the viewing angle is calculated according to the standard Gamma voltage corresponding to the preset reference viewing angle respectively.

[Claim 3] The method for adjusting the viewing angle of a liquid crystal display according to claim 2, wherein the preset reference viewing angle corresponding to the viewing angle is the preset reference viewing angle closest to the viewing angle; The step of calculating the Gamma voltage corresponding to the viewing angle according to the standard Gamma voltage corresponding to the preset reference viewing angle includes:

Obtain the corresponding standard Gamma voltage according to the preset reference viewing angle closest to the viewing angle, and use the corresponding standard Gamma voltage as the Gamma voltage corresponding to the viewing angle.

[Claim 4] The method for adjusting the viewing angle of a liquid crystal display according to claim 2, wherein the preset reference viewing angle corresponding to the viewing angle is the closest preset reference corresponding to both sides of the viewing angle respectively Viewing angle

The step of calculating the Gamma voltage corresponding to the viewing angle according to the standard Gamma voltage respectively corresponding to the preset reference viewing angle includes:

Obtain the corresponding standard Gamma voltage according to the closest preset reference viewing angles corresponding to the two sides of the viewing angle respectively, and calculate the Gamma voltage corresponding to the viewing angle according to the corresponding standard Gamma voltage.

[Claim 5] The method for adjusting the viewing angle of a liquid crystal display according to claim 4, wherein, according to the closest preset reference viewing angles corresponding to both sides of the viewing angle respectively, acquiring the corresponding standard Gamma voltage, and The step of calculating the Gamma voltage corresponding to the viewing angle according to the corresponding standard Gamma voltage includes: Obtain the standard Gamma voltage corresponding to the closest preset reference viewing angle on both sides of the viewing angle;

Determine the weighting coefficient of the standard Gamma voltage according to the angle difference between the viewing angle and the preset reference viewing angle closest to both sides;

The Gamma voltage corresponding to the viewing angle is obtained according to the standard Gamma voltage corresponding to the preset reference viewing angle on both sides of the viewing angle and the corresponding weight coefficient.

[Claim 6] The method for adjusting the viewing angle of a liquid crystal display according to claim 1, wherein it is determined that there are multiple users, and the corresponding Gamma voltage is obtained according to the viewing angle to adjust the liquid crystal display’s The steps of the viewing angle include: separately calculating the Gamma voltage corresponding to each user according to the angle of view of each user; calculating the optimized Gamma voltage according to the corresponding Gamma voltage of each user, to adjust the liquid crystal display according to the optimized Gamma voltage Angle of view.

[Claim 7] The method for adjusting the viewing angle of a liquid crystal display according to claim 6, wherein the step of calculating the optimized Gamma voltage according to the Gamma voltage corresponding to each user includes determining according to the Gamma voltage corresponding to each user Weight coefficients corresponding to each Gamma voltage;

According to the Gamma voltage corresponding to each user and the weight coefficient corresponding to each Gamma voltage, a weighted average sum of multiple Gamma voltages is calculated, and the weighted average sum is used as the optimized Gamma voltage.

[Claim 8] The method for adjusting the viewing angle of a liquid crystal display according to claim 7, wherein the step of determining weight coefficients corresponding to each Gamma voltage according to the Gamma voltage corresponding to each user includes:

Obtain the contrast of the LCD under each gamma voltage according to the corresponding gamma voltage of each user;

According to all contrasts, determine the weight coefficients corresponding to each Gamma voltage.

[Claim 9] A liquid crystal display, wherein the liquid crystal display includes a memory, a processor, and an adjustable viewing angle of the liquid crystal display stored on the memory and operable on the processor A program, wherein: when the program for adjusting the viewing angle of the liquid crystal display is executed by the processor, the following steps are implemented:

Determine the direction of the user's line of sight, and determine the corresponding viewing angle according to the direction of the line of sight; obtain the corresponding gamma gamma voltage according to the viewing angle, to adjust the viewing angle of the liquid crystal display according to the gamma voltage.

[Claim 10] The liquid crystal display of claim 9, wherein the step of obtaining the corresponding Gamma voltage according to the viewing angle includes:

Determine a corresponding preset reference viewing angle according to the viewing angle;

The Gamma voltage corresponding to the viewing angle is calculated according to the standard Gamma voltage corresponding to the preset reference viewing angle respectively.

[Claim 11] The liquid crystal display according to claim 10, wherein the preset reference viewing angle corresponding to the viewing angle is the preset reference viewing angle closest to the viewing angle; the according to the preset reference The standard Gamma voltage corresponding to the viewing angle respectively, and the step of calculating the Gamma voltage corresponding to the viewing angle includes:

Obtain the corresponding standard Gamma voltage according to the preset reference viewing angle closest to the viewing angle, and use the corresponding standard Gamma voltage as the Gamma voltage corresponding to the viewing angle.

[Claim 12] The liquid crystal display according to claim 10, wherein the preset reference viewing angle corresponding to the viewing angle is the closest preset reference viewing angle corresponding to both sides of the viewing angle respectively; The standard Gamma voltage corresponding to the preset reference viewing angle respectively, and the step of calculating the Gamma voltage corresponding to the viewing angle includes:

Obtain the corresponding standard Gamma voltage according to the closest preset reference viewing angles corresponding to the two sides of the viewing angle respectively, and calculate the Gamma voltage corresponding to the viewing angle according to the corresponding standard Gamma voltage.

[Claim 13] The liquid crystal display according to claim 12, wherein, the corresponding standard Gamma voltage is obtained according to the closest preset reference viewing angles corresponding to both sides of the viewing angle respectively, and according to the corresponding standard Gamma voltage The step of calculating the Gamma voltage corresponding to the viewing angle includes:

Obtain the standard Gamma electricity corresponding to the closest preset reference viewing angle on both sides of the viewing angle Pressure

Determine the weighting coefficient of the standard Gamma voltage according to the angle difference between the viewing angle and the preset reference viewing angle closest to both sides;

The Gamma voltage corresponding to the viewing angle is obtained according to the standard Gamma voltage corresponding to the preset reference viewing angle on both sides of the viewing angle and the corresponding weight coefficient.

[Claim 14] The liquid crystal display according to claim 9, wherein, it is determined that there are multiple users, and the step of obtaining the corresponding Gamma voltage according to the viewing angle to adjust the viewing angle of the liquid crystal display according to the Gamma voltage includes:

The Gamma voltage corresponding to each user is calculated according to the angle of view of each user; the optimized Gamma voltage is calculated according to the Gamma voltage corresponding to each user, to adjust the viewing angle of the liquid crystal display according to the optimized Gamma voltage.

[Claim 15] The liquid crystal display according to claim 14, wherein the step of calculating the optimized Gamma voltage according to the G amma voltage corresponding to each user comprises: determining each Gamma voltage according to the Gamma voltage corresponding to each user The corresponding weight coefficients respectively;

According to the Gamma voltage corresponding to each user and the weight coefficient corresponding to each Gamma voltage, a weighted average sum of multiple Gamma voltages is calculated, and the weighted average sum is used as the optimized Gamma voltage.

[Claim 16] The liquid crystal display according to claim 15, wherein the step of determining weight coefficients corresponding to each Gamma voltage according to the G amma voltage corresponding to each user includes: according to the Gamma voltage corresponding to each user Obtain the contrast of the LCD display under each Gamma voltage;

According to all contrasts, determine the weight coefficients corresponding to each Gamma voltage.

[Claim 17] A computer-readable storage medium, wherein the computer-readable storage medium stores a program for adjusting the viewing angle of a liquid crystal display, and when the program for adjusting the viewing angle of a liquid crystal display is executed by a processor, the following steps are implemented :

Determine the direction of the user's line of sight, and determine the corresponding angle of view according to the direction of the line of sight; obtain the corresponding gamma Gamma voltage according to the angle of view, to adjust according to the Gamma voltage LCD viewing angle.

[Claim 18] The program for adjusting the viewing angle of a liquid crystal display according to claim 17, wherein the step of obtaining the corresponding Gamma voltage according to the viewing angle includes:

Determine a corresponding preset reference viewing angle according to the viewing angle;

The Gamma voltage corresponding to the viewing angle is calculated according to the standard Gamma voltage corresponding to the preset reference viewing angle respectively.

[Claim 19] The program for adjusting the viewing angle of a liquid crystal display according to claim 18, wherein the preset reference viewing angle corresponding to the viewing angle is the preset reference viewing angle closest to the viewing angle; The standard Gamma voltage corresponding to the preset reference viewing angle respectively, and the step of calculating the Gamma voltage corresponding to the viewing angle includes:

Obtain the corresponding standard Gamma voltage according to the preset reference viewing angle closest to the viewing angle, and use the corresponding standard Gamma voltage as the Gamma voltage corresponding to the viewing angle.

[Claim 20] The program for adjusting the viewing angle of a liquid crystal display according to claim 18, wherein the preset reference viewing angle corresponding to the viewing angle is the closest preset reference viewing corresponding to both sides of the viewing angle Angle

The step of calculating the Gamma voltage corresponding to the viewing angle according to the standard Gamma voltage respectively corresponding to the preset reference viewing angle includes:

Obtain the corresponding standard Gamma voltage according to the closest preset reference viewing angles corresponding to the two sides of the viewing angle respectively, and calculate the Gamma voltage corresponding to the viewing angle according to the corresponding standard Gamma voltage.

[Claim 21] The program for adjusting the viewing angle of a liquid crystal display according to claim 20, wherein the corresponding standard G amma voltage is obtained according to the closest preset reference viewing angles corresponding to both sides of the viewing angle, and The step of calculating the Gamma voltage corresponding to the viewing angle according to the corresponding standard Gamma voltage includes:

Obtain the standard Gamma voltage corresponding to the preset reference viewing angles closest to both sides of the viewing angle;

Determine the weighting coefficient of the standard Gamma voltage according to the angle difference between the viewing angle and the preset reference viewing angle closest to both sides; The Gamma voltage corresponding to the viewing angle is obtained according to the standard Gamma voltage corresponding to the preset reference viewing angle on both sides of the viewing angle and the corresponding weight coefficient.

[Claim 22] The program for adjusting the viewing angle of a liquid crystal display according to claim 17, wherein it is determined that there are a plurality of users, and the corresponding Gamma voltage is obtained according to the viewing angle to adjust the liquid crystal display according to the Gamma voltage. The steps of viewing angle include:

The Gamma voltage corresponding to each user is calculated according to the angle of view of each user; the optimized Gamma voltage is calculated according to the Gamma voltage corresponding to each user, to adjust the viewing angle of the liquid crystal display according to the optimized Gamma voltage.

[Claim 23] The program for adjusting the viewing angle of a liquid crystal display according to claim 22, wherein the step of calculating the optimized Gamma voltage according to the Gamma voltage corresponding to each user comprises: determining according to the Gamma voltage corresponding to each user Weight coefficients corresponding to each Gamma voltage;

According to the Gamma voltage corresponding to each user and the weight coefficient corresponding to each Gamma voltage, a weighted average sum of multiple Gamma voltages is calculated, and the weighted average sum is used as the optimized Gamma voltage.

[Claim 24] The program for adjusting the viewing angle of a liquid crystal display according to claim 23, wherein the step of determining the weight coefficient corresponding to each Gamma voltage according to the Gamma voltage corresponding to each user includes:

Obtain the contrast of the LCD under each gamma voltage according to the corresponding gamma voltage of each user;

According to all contrasts, determine the weight coefficients corresponding to each Gamma voltage.