WO2021128459A1 - 液晶面板亮度视角调节方法、装置、系统及显示装置 - Google Patents

液晶面板亮度视角调节方法、装置、系统及显示装置 Download PDF

Info

Publication number
WO2021128459A1
WO2021128459A1 PCT/CN2020/070562 CN2020070562W WO2021128459A1 WO 2021128459 A1 WO2021128459 A1 WO 2021128459A1 CN 2020070562 W CN2020070562 W CN 2020070562W WO 2021128459 A1 WO2021128459 A1 WO 2021128459A1
Authority
WO
WIPO (PCT)
Prior art keywords
viewing angle
brightness
liquid crystal
driving voltage
crystal panel
Prior art date
Application number
PCT/CN2020/070562
Other languages
English (en)
French (fr)
Inventor
海博
Original Assignee
惠州市华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 惠州市华星光电技术有限公司 filed Critical 惠州市华星光电技术有限公司
Priority to US16/754,759 priority Critical patent/US11538429B2/en
Publication of WO2021128459A1 publication Critical patent/WO2021128459A1/zh

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3614—Control of polarity reversal in general
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
    • G09G2300/0447—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations for multi-domain technique to improve the viewing angle in a liquid crystal display, such as multi-vertical alignment [MVA]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0823—Several active elements per pixel in active matrix panels used to establish symmetry in driving, e.g. with polarity inversion
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/028—Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Definitions

  • This application relates to the field of liquid crystal technology, and more specifically, to a method, device, system, and display device for adjusting the brightness and viewing angle of a liquid crystal panel.
  • an LCD TV is composed of an LCD panel and a backlight
  • the LCD panel is one of the main factors that affect the brightness and viewing angle.
  • the brightness viewing angle is an important parameter of LCD TVs. The larger the brightness viewing angle, the slower the side-view brightness decreases, because the human eye is sensitive to brightness, and the side-view brightness is high, and the side-view viewing effect is better.
  • the user's requirements for brightness and viewing angle are gradually increasing.
  • an embodiment of the present invention provides a method for adjusting the brightness and viewing angle of a liquid crystal panel, which includes the following steps: detecting the brightness viewing angle of the liquid crystal panel based on the brightness value of the current screen of the liquid crystal panel to obtain the actual brightness viewing angle value corresponding to the current screen;
  • the difference between the actual brightness viewing angle value and the brightness viewing angle threshold is processed to obtain the target driving voltage value of the positive and negative polarity driving voltage
  • the positive and negative driving voltage of the liquid crystal panel is adjusted.
  • the embodiment of the present invention also provides a system for adjusting the brightness and viewing angle of a liquid crystal panel, which is characterized in that it includes a controller for connecting to the liquid crystal panel; the controller is used to perform the following steps:
  • the brightness viewing angle of the liquid crystal panel is detected, and the actual brightness viewing angle value corresponding to the current screen is obtained;
  • the difference between the actual brightness viewing angle value and the brightness viewing angle threshold is processed to obtain the target driving voltage value of the positive and negative polarity driving voltage
  • the positive and negative driving voltage of the liquid crystal panel is adjusted.
  • the embodiment of the present invention also provides a display device, including a liquid crystal panel and a system for adjusting the brightness and viewing angle of the liquid crystal panel;
  • the LCD panel brightness and viewing angle adjustment system includes a controller connected to the LCD panel; the controller is used to perform the following steps:
  • the brightness viewing angle of the liquid crystal panel is detected, and the actual brightness viewing angle value corresponding to the current screen is obtained;
  • the difference between the actual brightness viewing angle value and the brightness viewing angle threshold is processed to obtain the target driving voltage value of the positive and negative polarity driving voltage
  • the positive and negative driving voltage of the liquid crystal panel is adjusted.
  • the brightness viewing angle of the liquid crystal panel is detected based on the brightness value of the current screen of the liquid crystal panel to obtain the actual brightness viewing angle value corresponding to the current screen; when the actual brightness viewing angle value is less than the brightness viewing angle threshold value , Adjust the positive and negative polarity driving voltage of the liquid crystal panel based on the preset step length to obtain the relationship between the positive and negative polarity driving voltage and the brightness viewing angle; based on the relationship between the positive and negative polarity driving voltage and the brightness viewing angle, process The difference between the actual brightness viewing angle value and the brightness viewing angle threshold value is used to obtain the target driving voltage value of the positive and negative polarity driving voltage; according to the target driving voltage value, the positive and negative polarity driving voltage of the liquid crystal panel is adjusted to realize the control of the liquid crystal panel.
  • Brightness viewing angle adjustment can adjust the brightness and viewing angle of the liquid crystal panel without changing the pixel design, thereby saving costs, simplifying the process of improving the brightness and viewing angle of the liquid crystal device, and thereby improving the efficiency of improving the brightness and viewing angle of the liquid crystal panel.
  • FIG. 1 is an application environment diagram of a method for adjusting the brightness and viewing angle of a liquid crystal panel in an embodiment
  • FIG. 2 is a schematic diagram of a first process of a method for adjusting the brightness and viewing angle of a liquid crystal panel in an embodiment
  • FIG. 3 is a schematic diagram of a second process of a method for adjusting the brightness and viewing angle of a liquid crystal panel in an embodiment
  • FIG. 4 is a schematic diagram of a third process of a method for adjusting the brightness and viewing angle of a liquid crystal panel in an embodiment
  • FIG. 5 is a schematic diagram of a fourth process of a method for adjusting the brightness and viewing angle of a liquid crystal panel in an embodiment
  • FIG. 6 is a schematic diagram of a fifth process of a method for adjusting the brightness and viewing angle of a liquid crystal panel in an embodiment
  • FIG. 7 is a schematic diagram of the relationship curve between the brightness viewing angle and the voltage of the liquid crystal panel in an embodiment
  • FIG. 8 is a schematic diagram of a curve of a white screen brightness viewing angle and a backlight brightness viewing angle of a liquid crystal panel in an embodiment
  • FIG. 9 is a schematic diagram of the transmittance curve of the liquid crystal panel in an embodiment
  • FIG. 10 is a schematic diagram of a curve of a side view slope and a side view slope in an embodiment
  • FIG. 11 is a schematic block diagram of a device for adjusting the brightness and viewing angle of a liquid crystal panel in an embodiment
  • FIG. 12 is a schematic structural diagram of a system for adjusting the brightness and viewing angle of a liquid crystal panel in an embodiment
  • FIG. 13 is a schematic diagram of the structure of a display device in an embodiment.
  • the method for adjusting the brightness and viewing angle of the liquid crystal panel provided in this application can be applied to the application environment as shown in FIG. 1.
  • the processing device 102 is connected to the display device 104.
  • the processing device 102 includes a processor; the processor can be, but not limited to, a single-chip microcomputer or an ARM (Advanced RISC Machine, RISC microprocessor).
  • the display device 104 may be implemented by an independent display device or a display device combination composed of multiple display devices.
  • the display device 104 may include a liquid crystal panel; the liquid crystal panel may, but is not limited to, a TN panel, a VA panel, an IPS panel, and a CPA panel.
  • a method for adjusting the brightness and viewing angle of a liquid crystal panel is provided. Taking the method applied to the processing device 102 in FIG. 1 as an example for description, the method includes the following steps:
  • step S210 the brightness viewing angle of the liquid crystal panel is detected based on the brightness value of the current image of the liquid crystal panel, and the actual brightness viewing angle value corresponding to the current image is obtained.
  • the brightness value of the current screen can be represented by a grayscale value ranging from 0 to 255.
  • the current picture refers to the current picture displayed according to the RGB signal input to the LCD panel.
  • Brightness viewing angle refers to the angle at which the user can clearly see all the contents displayed on the screen from different directions.
  • the brightness viewing angle is the horizontal viewing angle or the vertical viewing angle.
  • the horizontal viewing angle refers to relying on the vertical normal of the screen as a reference, and the image recognized by the user can be observed normally at a certain angle to the left or right of the normal. This angle range is the horizontal view of the liquid crystal. Angle; in the same way, if the horizontal normal is used as the reference, the vertical viewing angle is called the vertical viewing angle.
  • the processing device can obtain the brightness value of the current screen by measuring the brightness of the current screen of the base liquid crystal panel.
  • the processing device can detect the brightness viewing angle of the liquid crystal panel based on the brightness value of the current screen, and then obtain the actual brightness viewing angle value corresponding to the current screen.
  • the processing device may transmit a test signal corresponding to 255 levels to the liquid crystal panel, that is, the current image of the liquid crystal panel is a pure white image with 255 levels.
  • Step S220 When the actual brightness viewing angle value is less than the brightness viewing angle threshold, adjust the positive and negative polarity driving voltages of the liquid crystal panel based on the preset step length to obtain the relationship between the positive and negative polarity driving voltages and the brightness viewing angle.
  • the brightness viewing angle threshold can be preset according to the system.
  • the preset step length can be determined according to experimental conditions; for example, the preset step length can be 0.5V (volts).
  • the positive and negative driving voltage refers to the positive driving voltage and/or the negative driving voltage used to drive the liquid crystal panel.
  • the relationship between the positive and negative driving voltages and the brightness viewing angle can be used to indicate the relationship between adjusting the driving voltage of the display panel and the brightness viewing angle corresponding to the driving voltage.
  • the processing device may compare the processed actual brightness viewing angle with the brightness viewing angle threshold; and according to the processing result, when the actual brightness viewing angle value is less than the brightness viewing angle threshold, the LCD panel is sequentially adjusted based on the preset step size.
  • the negative driving voltage is used to obtain the brightness viewing angle corresponding to the positive and negative driving voltage, and then the relationship between the positive and negative driving voltage and the brightness viewing angle is obtained according to each positive and negative driving voltage and each brightness viewing angle.
  • the processing device may end the brightness viewing angle adjustment process when the actual brightness viewing angle value is equal to or greater than the brightness viewing angle threshold according to the processing result, that is, when the actual brightness viewing angle value is equal to or greater than the brightness viewing angle threshold, the brightness viewing angle of the surface liquid crystal panel Meet the requirements.
  • Step S230 Based on the relationship between the positive and negative polarity driving voltage and the brightness viewing angle, the difference between the actual brightness viewing angle value and the brightness viewing angle threshold is processed to obtain the target driving voltage value of the positive and negative polarity driving voltage.
  • the target driving voltage value refers to the voltage value of the positive and negative polarity driving voltage corresponding to the actual brightness viewing angle value.
  • the difference between the actual brightness viewing angle value and the brightness viewing angle threshold is calculated, and according to the difference between the actual brightness viewing angle value and the brightness viewing angle threshold, Obtain the target driving voltage value of the positive and negative polarity driving voltage.
  • step S240 the positive and negative driving voltages of the liquid crystal panel are adjusted according to the target driving voltage value.
  • the positive and negative polarity driving voltage refers to the voltage that drives the liquid crystal panel to light up.
  • the greater the positive polarity driving voltage and the lower the negative polarity driving voltage the greater the brightness of the liquid crystal panel.
  • the processing device adjusts the positive and negative polarity driving voltage of the liquid crystal panel according to the processed target driving voltage value, and then drives the liquid crystal panel to work based on the adjusted positive and negative polarity driving voltage, so that the brightness and viewing angle of the liquid crystal panel is adjusted to meet Brightness viewing angle threshold requirements.
  • the brightness viewing angle of the liquid crystal panel is detected based on the brightness value of the current screen of the liquid crystal panel to obtain the actual brightness viewing angle value corresponding to the current screen; when the actual brightness viewing angle value is less than the brightness viewing angle threshold, Adjust the positive and negative polarity driving voltage of the liquid crystal panel based on the preset step length to obtain the relationship between the positive and negative polarity driving voltage and the brightness viewing angle; based on the relationship between the positive and negative polarity driving voltage and the brightness viewing angle, the actual The difference between the brightness viewing angle value and the brightness viewing angle threshold value is used to obtain the target driving voltage value of the positive and negative polarity driving voltage; according to the target driving voltage value, the positive and negative polarity driving voltage of the liquid crystal panel is adjusted to realize the brightness of the liquid crystal panel Angle adjustment. It realizes the adjustment of the brightness and viewing angle of the liquid crystal panel without changing the pixel design, thereby saving costs and simplifying the process of improving the brightness and viewing angle of
  • a method for adjusting the brightness and viewing angle of a liquid crystal panel is provided. Taking the method applied to the processing device 102 in FIG. 1 as an example for description, the method includes the following steps:
  • step S310 the brightness viewing angle of the liquid crystal panel is detected based on the brightness value of the current image of the liquid crystal panel, and the actual brightness viewing angle value corresponding to the current image is obtained.
  • step S320 when the actual brightness viewing angle value is less than the brightness viewing angle threshold, the 255-step negative driving voltage of the liquid crystal panel is kept unchanged, and the 255-step positive driving voltage of the liquid crystal panel is increased based on a preset step to obtain a positive and negative driving voltage.
  • Step S330 processing the difference between the actual brightness viewing angle value and the brightness viewing angle threshold based on the relationship between the positive and negative polarity driving voltage and the brightness viewing angle to obtain the target driving voltage value of the positive polarity driving voltage;
  • step S340 the positive driving voltage of the liquid crystal panel is adjusted according to the target driving voltage value.
  • the driving voltage of the liquid crystal panel includes a positive polarity driving voltage, a negative polarity driving voltage, and a common voltage (VCOM voltage).
  • the processing device can detect the brightness viewing angle of the LCD panel based on the brightness value of the current screen of the LCD panel to obtain the actual brightness viewing angle value corresponding to the current screen; compare the actual brightness viewing angle value with the brightness viewing angle threshold value, and the actual brightness viewing angle value is less than the brightness At the viewing angle threshold, the 255-level negative driving voltage of the liquid crystal panel can be kept unchanged, and the 255-level positive driving voltage of the liquid crystal panel is increased based on the preset step size to obtain the relationship between the positive and negative driving voltage and the brightness viewing angle ; And based on the relationship between the positive and negative polarity driving voltage and the brightness viewing angle, the difference between the actual brightness viewing angle value and the brightness viewing angle threshold can be calculated.
  • the processing device can obtain the target driving voltage value of the 255-step positive polarity driving voltage according to the difference between the actual brightness viewing angle value and the brightness viewing angle threshold; and increase the current 255-step positive polarity driving voltage to the target driving voltage value;
  • the 255-level positive polarity driving voltage drives the liquid crystal panel, so as to realize the adjustment of the brightness and viewing angle of the liquid crystal panel.
  • the positive driving voltage range for the white screen of the 255-level brightness of the liquid crystal panel is 10V to 20V (volts).
  • the current liquid crystal panel needs to increase the brightness viewing angle, and the corresponding relationship between the brightness viewing angle and the positive drive voltage is used to obtain the actual positive drive voltage that needs to be changed. Furthermore, by keeping the negative driving voltage of the liquid crystal panel unchanged, the positive driving voltage based on the current screen of the liquid crystal panel is adjusted, thereby realizing the adjustment of the brightness and viewing angle of the liquid crystal panel.
  • the cost is saved, the process of improving the brightness and viewing angle of the liquid crystal device is simplified, and the efficiency of improving the brightness and viewing angle of the liquid crystal panel is improved.
  • each gray scale of the liquid crystal panel corresponds to a positive polarity voltage, a negative polarity voltage, and a common voltage respectively.
  • the voltage applied to the liquid crystal is the difference between the positive polarity voltage, the negative polarity voltage and the common voltage.
  • multiple sets of historical data can be tested through experiments, and the correspondence between brightness viewing angles and positive polarity driving voltages can be obtained according to the multiple sets of historical data. Furthermore, based on the corresponding relationship between the brightness viewing angle and the positive polarity driving voltage, the difference between the actual brightness viewing angle value and the brightness viewing angle threshold can be processed to obtain the target driving voltage value of the positive polarity driving voltage.
  • a method for adjusting the brightness and viewing angle of a liquid crystal panel is provided. Taking the method applied to the processing device 102 in FIG. 1 as an example for description, the method includes the following steps:
  • step S410 the brightness viewing angle of the liquid crystal panel is detected based on the brightness value of the current image of the liquid crystal panel, and the actual brightness viewing angle value corresponding to the current image is obtained.
  • Step S420 when the actual brightness viewing angle value is less than the brightness viewing angle threshold, the 255-level positive driving voltage of the liquid crystal panel is kept unchanged, and the 255-level negative driving voltage of the liquid crystal panel is reduced based on the preset step length to obtain a positive and negative driving voltage.
  • Step S430 Based on the relationship between the positive and negative polarity driving voltages and the brightness viewing angle, the difference between the actual brightness viewing angle value and the brightness viewing angle threshold is processed to obtain the target driving voltage value of the negative polarity driving voltage.
  • step S440 the negative driving voltage of the liquid crystal panel is adjusted according to the target driving voltage value.
  • the driving voltage of the liquid crystal panel includes a positive polarity driving voltage, a negative polarity driving voltage, and a common voltage (VCOM voltage).
  • the processing device can detect the brightness viewing angle of the LCD panel based on the brightness value of the current screen of the LCD panel to obtain the actual brightness viewing angle value corresponding to the current screen; compare the actual brightness viewing angle value with the brightness viewing angle threshold value, and the actual brightness viewing angle value is less than the brightness At the viewing angle threshold, the 255-level positive driving voltage of the liquid crystal panel can be kept unchanged, and the 255-level negative driving voltage of the liquid crystal panel is reduced based on the preset step size to obtain the relationship between the positive and negative driving voltage and the brightness viewing angle ; And based on the relationship between the positive and negative polarity driving voltage and the brightness viewing angle, the difference between the actual brightness viewing angle value and the brightness viewing angle threshold can be calculated.
  • the processing device can obtain the target driving voltage value of the 255-step negative driving voltage according to the difference between the actual brightness viewing angle value and the brightness viewing angle threshold; and reduce the current 255-step negative driving voltage to the target driving voltage value;
  • the small 255-step negative driving voltage drives the liquid crystal panel, thereby realizing the adjustment of the brightness and viewing angle of the liquid crystal panel.
  • the negative driving voltage range for the white screen of the 255-level brightness of the liquid crystal panel is 0V to 2V (volts).
  • the current liquid crystal panel needs to increase the brightness viewing angle, and the corresponding relationship between the brightness viewing angle and the negative driving voltage is used to obtain the actual negative driving voltage that needs to be changed. Furthermore, by keeping the positive driving voltage of the liquid crystal panel unchanged, the negative driving voltage based on the current screen of the liquid crystal panel is adjusted, thereby realizing the adjustment of the brightness and viewing angle of the liquid crystal panel.
  • the cost is saved, the process of improving the brightness and viewing angle of the liquid crystal device is simplified, and the efficiency of improving the brightness and viewing angle of the liquid crystal panel is improved.
  • multiple sets of historical data can be tested through experiments, and according to multiple sets of historical data, the correspondence between brightness viewing angles and negative polarity driving voltages can be obtained. Furthermore, the difference between the actual brightness viewing angle value and the brightness viewing angle threshold can be processed based on the corresponding relationship between the brightness viewing angle and the negative polarity driving voltage to obtain the target driving voltage value of the negative polarity driving voltage.
  • a method for adjusting the brightness and viewing angle of a liquid crystal panel is provided. Taking the method applied to the processing device 102 in FIG. 1 as an example for description, the method includes the following steps:
  • step S510 the brightness viewing angle of the liquid crystal panel is detected based on the brightness value of the current image of the liquid crystal panel, and the actual brightness viewing angle value corresponding to the current image is obtained.
  • Step S520 when the actual brightness viewing angle value is less than the brightness viewing angle threshold, the 255-step positive driving voltage of the liquid crystal panel is increased based on a preset step, and the 255-step negative driving voltage of the liquid crystal panel is reduced based on the preset step to obtain The relationship between the positive and negative driving voltage and the brightness viewing angle.
  • Step S530 Based on the relationship between the positive and negative polarity driving voltage and the brightness viewing angle, the difference between the actual brightness viewing angle value and the brightness viewing angle threshold is processed to obtain the target driving voltage value of the positive and negative polarity driving voltage.
  • Step S540 Adjust the positive and negative polarity driving voltage of the liquid crystal panel according to the target driving voltage value.
  • the driving voltage of the liquid crystal panel includes a positive polarity driving voltage, a negative polarity driving voltage, and a common voltage (VCOM voltage).
  • the processing device can detect the brightness viewing angle of the LCD panel based on the brightness value of the current screen of the LCD panel to obtain the actual brightness viewing angle value corresponding to the current screen; compare the actual brightness viewing angle value with the brightness viewing angle threshold value, and the actual brightness viewing angle value is less than the brightness At the viewing angle threshold, the 255-level positive driving voltage of the liquid crystal panel is increased based on a preset step, and the 255-level negative driving voltage of the liquid crystal panel is reduced based on the preset step to obtain the difference between the positive and negative driving voltage and the brightness viewing angle Based on the relationship between the positive and negative polarity driving voltage and the brightness viewing angle, the difference between the actual brightness viewing angle value and the brightness viewing angle threshold can be calculated.
  • the processing device can obtain the target driving voltage value of the 255-level positive driving voltage and the target driving voltage of the 255-level negative driving voltage according to the difference between the actual brightness viewing angle value and the brightness viewing angle threshold;
  • the driving voltage increases the target driving voltage value of the positive polarity driving voltage, and reduces the current 255-step negative driving voltage to the target driving voltage value of the negative driving voltage; and according to the increased 255-step positive driving voltage and the reduced value
  • the 255-level negative driving voltage drives the liquid crystal panel, so as to realize the adjustment of the brightness and viewing angle of the liquid crystal panel.
  • the brightness and viewing angle of the liquid crystal panel can be adjusted.
  • the cost is saved, the process of improving the brightness and viewing angle of the liquid crystal device is simplified, and the efficiency of improving the brightness and viewing angle of the liquid crystal panel is improved.
  • multiple sets of historical data can be tested through experiments. According to multiple sets of historical data, the difference between the brightness viewing angle and the positive polarity driving voltage can be obtained. Correspondence, and the correspondence between the brightness viewing angle and the negative driving voltage.
  • the difference between the actual brightness viewing angle value and the brightness viewing angle threshold can be processed to obtain the target driving voltage value of the positive polarity driving voltage; based on the brightness viewing angle and the negative polarity driving voltage The corresponding relationship between the processing of the actual brightness viewing angle value and the brightness viewing angle threshold value of the difference between, to obtain the negative driving voltage of the target driving voltage value.
  • the brightness viewing angle may be 1/3 brightness viewing angle; 1/3 brightness viewing angle refers to the viewing angle (horizontal viewing angle or Vertical viewing angle).
  • the brightness viewing angle can also be 1/2 brightness viewing angle.
  • the 1/2 brightness viewing angle refers to the viewing angle (horizontal viewing angle or vertical viewing angle) when the brightness at the center of the LCD panel screen is reduced to one-half of the brightness viewing angle. It should be noted that the brightness viewing angle is not limited to a 1/3 brightness viewing angle or a 1/2 brightness viewing angle, and may also be a viewing angle corresponding to other brightness values.
  • a method for adjusting the brightness and viewing angle of a liquid crystal panel is provided. Taking the method applied to the processing device 102 in FIG. 1 as an example for description, the method includes the following steps:
  • Step S610 Detect the brightness of the current screen at the center point of the liquid crystal panel to obtain a brightness value.
  • step S620 the brightness viewing angle of the liquid crystal panel is detected based on the brightness value of the current image of the liquid crystal panel, and the actual brightness viewing angle value corresponding to the current image is obtained.
  • Step S630 when the actual brightness viewing angle value is less than the brightness viewing angle threshold, adjust the positive and negative polarity driving voltage of the liquid crystal panel based on the preset step length to obtain the relationship between the positive and negative polarity driving voltage and the brightness viewing angle.
  • Step S640 processing the difference between the actual brightness viewing angle value and the brightness viewing angle threshold based on the relationship between the positive and negative polarity driving voltage and the brightness viewing angle to obtain the target driving voltage value of the positive and negative polarity driving voltage.
  • step S650 the positive and negative driving voltages of the liquid crystal panel are adjusted according to the target driving voltage value.
  • step S620, step S630, step S640, and step S650 can refer to the above content, which will not be repeated here.
  • the processing device measures the brightness of the current screen at the center point of the liquid crystal panel, and then can obtain the brightness value of the current screen.
  • the processing device may include an optical measuring instrument, which can be achieved by placing the optical measuring instrument in front of the liquid crystal panel and placing the optical axis of the optical measuring instrument perpendicular to the center area of the liquid crystal panel. Measure the brightness of the center point of the liquid crystal panel with an optical measuring instrument, and keep the measurement position of the center point unchanged, turn the optical measuring device (or the liquid crystal panel) in turn, and then measure the brightness of different horizontal and vertical angles. The measured brightness changes with the angle. When the brightness is 1/3 of the 0 degree angle, record the angle. Furthermore, horizontal 1/3 viewing angle (that is, the sum of left and right angles in the horizontal direction) and vertical 1/3 viewing angle (that is, the sum of vertical and vertical angles) can be obtained.
  • the corresponding voltage difference to be adjusted can be obtained, and the positive value of the liquid crystal panel can be adjusted according to the voltage difference to be adjusted.
  • the negative driving voltage realizes adjustment of the brightness and viewing angle of the liquid crystal panel without changing the pixel design, thereby saving costs, simplifying the process of improving the brightness and viewing angle of the liquid crystal device, thereby improving the efficiency of improving the brightness and viewing angle of the liquid crystal panel.
  • the current screen of the liquid crystal panel is a 255-level brightness screen.
  • the 255-level brightness picture refers to a pure white picture.
  • the current screen of the liquid crystal panel is a 255-level white screen
  • the brightness viewing angle is 1/3 brightness viewing angle as an example for description.
  • Adjust different voltages (13V, 14V, 15V, 16V and 17V) for the 255-level white picture record the brightness of different viewing angles, and calculate the 1/3 brightness viewing angle to obtain the corresponding brightness viewing angles (90 degrees, 91 degrees, 92 degrees, 93 degrees and 94 degrees), the influence trend of the voltage based on the 255-level white picture on the brightness viewing angle is obtained.
  • increasing the voltage of the 255-level white screen by 1V will increase the viewing angle by 1/3 of the brightness by about 1 degree.
  • the efficiency of improving the brightness and viewing angle of the liquid crystal device is low.
  • the principle and process of adjusting the brightness and viewing angle of the liquid crystal panel are specifically described.
  • the brightness viewing angle of the 255-level white screen (W) and the backlight (BLU, Back Light Unit) of the liquid crystal panel are measured separately, and the 1/3 brightness viewing angle of the 255-level white screen (W) can be obtained by calculation as 89 degrees.
  • the 1/3 brightness viewing angle of the backlight (BLU) is 112 degrees. It can be seen that the brightness viewing angle of the 255-level white screen (W) is different from that of the backlight (BLU).
  • the brightness viewing angle of the backlight (BLU) is greater than that of the 255-level white screen (W), that is, the LCD panel reduces the brightness of the backlight assembly. Perspective. Therefore, it is necessary to reduce the influence of the LCD panel on the brightness viewing angle.
  • the reason for the liquid crystal panel to narrow the brightness viewing angle is that as the viewing angle increases, the transmittance of the liquid crystal panel gradually decreases.
  • the brightness () of the 255-level white screen is the product of the backlight brightness () and the transmittance (), that is, to improve the LCD panel to narrow the brightness and viewing angle, it is necessary to increase the transmittance of the LCD panel from the side view to the front view, so that the viewing angle can penetrate The rate of decrease is reduced.
  • the various embodiments of the present application can adjust the brightness and viewing angle of the liquid crystal panel without changing the pixel design, thereby saving costs, simplifying the process of improving the brightness and viewing angle of the liquid crystal device, thereby improving the brightness and viewing angle improvement efficiency of the liquid crystal panel. .
  • a device for adjusting the brightness and viewing angle of a liquid crystal panel including:
  • the brightness viewing angle detection unit 112 is configured to detect the brightness viewing angle of the liquid crystal panel based on the brightness value of the current image of the liquid crystal panel, and obtain the actual brightness viewing angle value corresponding to the current image.
  • the relational expression confirming unit 114 is configured to adjust the positive and negative polarity driving voltages of the liquid crystal panel based on a preset step size when the actual brightness viewing angle value is less than the brightness viewing angle threshold to obtain the relation between the positive and negative polarity driving voltages and the brightness viewing angle .
  • the voltage value calculation unit 116 processes the difference between the actual brightness viewing angle value and the brightness viewing angle threshold based on the relationship between the positive and negative polarity driving voltage and the brightness viewing angle to obtain the target driving voltage value of the positive and negative polarity driving voltage.
  • the brightness viewing angle adjustment unit 118 is configured to adjust the positive and negative polarity driving voltage of the liquid crystal panel according to the target driving voltage value.
  • the various modules in the device for adjusting the brightness and viewing angle of the liquid crystal panel can be implemented in whole or in part by software, hardware and a combination thereof.
  • the above modules can be embedded in the form of hardware or independent of the processor in the LCD panel brightness and viewing angle adjustment system, or can be stored in the memory of the LCD panel brightness and viewing angle adjustment system in the form of software, so that the processor can call and execute the above. Operation corresponding to the module.
  • a system for adjusting the brightness and viewing angle of a liquid crystal panel including a controller 120 for connecting to the liquid crystal panel; the controller is used to perform any of the above-mentioned methods for adjusting the brightness and viewing angle of the liquid crystal panel A step of.
  • the controller 120 may be, but not limited to, a single-chip microcomputer or an ARM.
  • controller 120 may be used to perform the following steps:
  • the brightness viewing angle of the liquid crystal panel is detected, and the actual brightness viewing angle value corresponding to the current screen is obtained;
  • the difference between the actual brightness viewing angle value and the brightness viewing angle threshold is processed to obtain the target driving voltage value of the positive and negative polarity driving voltage
  • the positive and negative driving voltage of the liquid crystal panel is adjusted.
  • the controller 120 can detect the brightness viewing angle of the liquid crystal panel based on the brightness value of the current screen of the liquid crystal panel to obtain the actual brightness viewing angle value corresponding to the current screen; when the actual brightness viewing angle value is less than the brightness viewing angle threshold, based on the preset step size Adjust the positive and negative driving voltage of the liquid crystal panel to obtain the relationship between the positive and negative driving voltage and the brightness viewing angle; based on the relationship between the positive and negative driving voltage and the brightness viewing angle, process the actual brightness viewing angle and brightness
  • the difference between the viewing angle thresholds obtains the target driving voltage value of the positive and negative driving voltage; according to the target driving voltage value, the positive and negative driving voltage of the liquid crystal panel is adjusted to realize the brightness and viewing angle adjustment of the liquid crystal panel.
  • the brightness and viewing angle of the liquid crystal panel can be adjusted without changing the pixel design, which saves costs and simplifies the process of improving the brightness and viewing angle of the liquid crystal device, thereby improving the efficiency of improving the brightness and viewing angle of the liquid crystal panel.
  • the liquid crystal panel brightness viewing angle adjustment system further includes an optical measuring instrument for measuring the brightness value of the current image of the liquid crystal panel; the optical measuring instrument is connected to the controller.
  • a display device which includes a liquid crystal panel 130 and the above-mentioned liquid crystal panel brightness and viewing angle adjustment system 132; the liquid crystal panel brightness and viewing angle adjustment system 132 is connected to the liquid crystal panel.
  • the liquid crystal panel 130 can be, but not limited to, a TN (Twisted Nematic) panel, a VA (Vertical Alignment, vertical alignment type) panel, an IPS (In-Plane Switching, plane switching type) panel, and a CPA (Continuous Pinwheel) panel. Alignment, continuous firework arrangement) panel.
  • TN Transmission Nematic
  • VA Vertical Alignment, vertical alignment type
  • IPS In-Plane Switching, plane switching type
  • CPA Continuous Pinwheel
  • Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory.
  • Volatile memory may include random access memory (RAM) or external cache memory.
  • RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Channel (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

一种液晶面板亮度视角调节方法、装置、系统及显示装置，该方法包括以下步骤：基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值（S210）；在实际亮度视角值小于亮度视角阈值时，基于预设步长调节液晶面板的正负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式（S220）；基于关系式处理实际亮度视角值与亮度视角阈值之间的差值，得到目标驱动电压值（S230）；根据目标驱动电压值，调节液晶面板的正负极性驱动电压，实现液晶面板的亮度视角调节（S240）。能够在不改变像素设计的情况下，实现对液晶面板的亮度视角调节，节约了成本，简化了改善液晶设备的亮度视角过程，从而提高液晶面板的亮度视角改善效率。

Description

液晶面板亮度视角调节方法、装置、系统及显示装置 技术领域
本申请涉及液晶技术领域，更具体地说，涉及一种液晶面板亮度视角调节方法、装置、系统及显示装置。
 背景技术
随着液晶设备的发展，对于液晶设备的液晶面板成为了重要的研究热点。例如，液晶电视由液晶面板和背光组成整机，液晶面板是影响亮度视角的主要因素之一。其中，亮度视角是液晶电视的一个重要的参数。亮度视角越大，侧视亮度降低的越慢，因为人眼对亮度敏感，侧视亮度高，侧视观看效果越好。用户对亮度视角的要求再逐步提高。
 技术问题
在实现过程中，发明人发现传统技术中至少存在如下问题：传统的改善液晶设备的亮度视角过程复杂，成本高，液晶设备的亮度视角改善效率低。
 技术解决方案
基于此，有必要传统的改善液晶设备的亮度视角过程复杂，成本高，液晶设备的亮度视角改善效率低的问题，提供一种液晶面板亮度视角调节方法、装置、系统及显示装置。
为了实现上述目的，本发明实施例提供了一种液晶面板亮度视角调节方法，包括以下步骤：基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值；
在实际亮度视角值小于亮度视角阈值时，基于预设步长调节液晶面板的正负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式；
基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到正负极性驱动电压的目标驱动电压值；
根据目标驱动电压值，调节液晶面板的正负极性驱动电压。
本发明实施例还提供了一种液晶面板亮度视角调节系统，其特征在于，包括用于连接液晶面板的控制器；控制器用于执行以下步骤：
基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值；
在实际亮度视角值小于亮度视角阈值时，基于预设步长调节液晶面板的正负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式；
基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到正负极性驱动电压的目标驱动电压值；
根据目标驱动电压值，调节液晶面板的正负极性驱动电压。
本发明实施例还提供了一种显示装置，包括液晶面板以及液晶面板亮度视角调节系统；
液晶面板亮度视角调节系统包括连接液晶面板的控制器；控制器用于执行以下步骤：
基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值；
在实际亮度视角值小于亮度视角阈值时，基于预设步长调节液晶面板的正负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式；
基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到正负极性驱动电压的目标驱动电压值；
根据目标驱动电压值，调节液晶面板的正负极性驱动电压。
 有益效果
上述的液晶面板亮度视角调节方法的各实施例中，基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值；在实际亮度视角值小于亮度视角阈值时，基于预设步长调节液晶面板的正负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式；基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到正负极性驱动电压的目标驱动电压值；根据目标驱动电压值，调节液晶面板的正负极性驱动电压，从而实现对液晶面板的亮度视角调节。本申请能够在不改变像素设计的情况下，实现对液晶面板的亮度视角调节，进而节约了成本，简化了改善液晶设备的亮度视角过程，从而提高了液晶面板的亮度视角改善效率。
 附图说明
下面将结合附图及实施例对本申请作进一步说明，附图中：
图1为一个实施例中液晶面板亮度视角调节方法的应用环境图；
图2为一个实施例中液晶面板亮度视角调节方法的第一流程示意图；
图3为一个实施例中液晶面板亮度视角调节方法的第二流程示意图；
图4为一个实施例中液晶面板亮度视角调节方法的第三流程示意图；
图5为一个实施例中液晶面板亮度视角调节方法的第四流程示意图；
图6为一个实施例中液晶面板亮度视角调节方法的第五流程示意图；
图7为一个实施例中液晶面板的亮度视角与电压的关系曲线示意图；
图8为一个实施例中液晶面板的白画面亮度视角与背光亮度视角的曲线示意图；
图9为一个实施例中液晶面板穿透率的曲线示意图；
图10为一个实施例中侧视斜率与侧视斜率的曲线示意图；
图11为一个实施例中液晶面板亮度视角调节装置的方框示意图；
图12为一个实施例中液晶面板亮度视角调节系统的结构示意图；
图13为一个实施例中显示装置的结构示意图。
 本发明的实施方式
为了对本申请的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本申请的具体实施方式。
本申请提供的液晶面板亮度视角调节方法，可以应用于如图1所示的应用环境中。其中，处理设备102与显示设备104连接。处理设备102包括处理器；处理器可以但不限于是单片机或ARM（Advanced RISC Machine，RISC微处理器）。显示设备104可以用独立的显示设备或者是多个显示设备组成的显示设备组合来实现。其中，显示设备104可包括液晶面板；液晶面板可以但不限于是TN面板，VA面板，IPS面板和CPA面板。
在一个实施例中，如图2所示，提供了一种液晶面板亮度视角调节方法，以该方法应用于图1中的处理设备102为例进行说明，包括以下步骤：
步骤S210，基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值。
其中，当前画面的亮度值可通过0至255范围的灰阶值表示。当前画面指的是根据输入液晶面板的RGB信号显示的当前画面。亮度视角指的是用户能从不一样的方位清晰地看见荧幕上所有显示内容的角度。亮度视角为水平可视角度或垂直可视角度。水平可视角度指的是靠荧幕的垂直法线做基准，在垂直于法线左边或者右边一定角度的方位上还可以正常的观察到用户认可的图像，此角度范围就为液晶水平可视角度；同理，假如用水平法线为基准，上下可视角度就被叫做垂直可视角度。
具体地，处理设备可通过测量基液晶面板当前画面的亮度，得到当前画面的亮度值。处理设备可基于当前画面的亮度值，检测液晶面板的亮度视角，进而得到对应当前画面的实际亮度视角值。
在一个示例中，处理设备可向液晶面板传输对应255阶的测试信号，即液晶面板的当前画面为255阶的纯白画面。
步骤S220，在实际亮度视角值小于亮度视角阈值时，基于预设步长调节液晶面板的正负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式。
其中，亮度视角阈值可根据系统预设得到。预设步长可以根据实验情况确定；例如预设步长可以是0.5V（伏）。正负极性驱动电压指的是用于驱动液晶面板的正极性驱动电压和/或负极性电压。正负极性驱动电压与亮度视角之间的关系式可用来指示调整显示面板的驱动电压以及对应驱动电压的亮度视角之间的关系。
具体地，处理设备可将处理得到的实际亮度视角与亮度视角阈值进行比对处理；并根据处理的结果，在实际亮度视角值小于亮度视角阈值时，基于预设步长依次调节液晶面板的正负极性驱动电压，得到对应正负极性驱动电压的亮度视角，进而根据各正负极性驱动电压和各亮度视角，得到正负极性驱动电压与亮度视角之间的关系式。
进一步的，处理设备可根据处理的结果，在实际亮度视角值等于或大于亮度视角阈值时，结束亮度视角调节过程，即当实际亮度视角值等于或大于亮度视角阈值时，表面液晶面板的亮度视角符合要求。
步骤S230，基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到正负极性驱动电压的目标驱动电压值。
其中，目标驱动电压值指的是对应实际亮度视角值的正负极性驱动电压的电压值。
具体地，基于正负极性驱动电压与亮度视角之间的关系式，计算实际亮度视角值与亮度视角阈值之间的差值，并根据实际亮度视角值与亮度视角阈值之间的差值，得到正负极性驱动电压的目标驱动电压值。
步骤S240，根据目标驱动电压值，调节液晶面板的正负极性驱动电压。
其中，正负极性驱动电压指的是驱动液晶面板点亮的电压，在一个示例中，正极性驱动电压越大，负极性驱动电压越小，则液晶面板的亮度越大。
具体地，处理设备根据处理得到的目标驱动电压值，调节液晶面板的正负极性驱动电压，进而基于调节后的正负极性驱动电压驱动液晶面板工作，使得液晶面板的亮度视角调节到满足亮度视角阈值的要求。
上述的液晶面板亮度视角调节方法的实施例中，基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值；在实际亮度视角值小于亮度视角阈值时，基于预设步长调节液晶面板的正负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式；基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到正负极性驱动电压的目标驱动电压值；根据目标驱动电压值，调节液晶面板的正负极性驱动电压，从而实现对液晶面板的亮度视角调节。实现在不改变像素设计的情况下，实现对液晶面板的亮度视角调节，进而节约了成本，简化了改善液晶设备的亮度视角过程，从而提高了液晶面板的亮度视角改善效率。
在一个实施例中，如图3所示，提供了一种液晶面板亮度视角调节方法，以该方法应用于图1中的处理设备102为例进行说明，包括以下步骤：
步骤S310，基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值。
步骤S320，在实际亮度视角值小于亮度视角阈值时，保持液晶面板的255阶负极性驱动电压不变，基于预设步长增大液晶面板的255阶正极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式。
步骤S330，基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到正极性驱动电压的目标驱动电压值；
步骤S340，根据目标驱动电压值，调节液晶面板的正极性驱动电压。
具体而言，液晶面板的驱动电压包括正极性驱动电压、负极性驱动电压和公共电压（VCOM电压）。处理设备可基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值；将实际亮度视角值与亮度视角阈值进行比对处理，在实际亮度视角值小于亮度视角阈值时，可保持液晶面板的255阶负极性驱动电压不变，基于预设步长增大液晶面板的255阶正极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式；并基于正负极性驱动电压与亮度视角之间的关系式，可计算得到实际亮度视角值与亮度视角阈值之间的差值。处理设备可根据实际亮度视角值与亮度视角阈值之间的差值，得到255阶正极性驱动电压的目标驱动电压值；并将当前的255阶正极性驱动电压增加目标驱动电压值；根据增加后的255阶正极性驱动电压，驱动液晶面板，从而实现对液晶面板的亮度视角调节。
优选的，对于液晶面板255阶亮度的白画面的正极性驱动电压范围为10V至20V（伏）。
本实施例中，基于亮度视角阈值，判断当前液晶面板需增加亮度视角的需求，并通过亮度视角与正极性驱动电压的对应关系，得出实际需改变的正极性驱动电压。进而通过保持液晶面板的负极性驱动电压不变，调节基于液晶面板当前画面的正极性驱动电压，进而实现对液晶面板的亮度视角调节。通过在不改变像素设计的情况下，实现对液晶面板的亮度视角调节，进而节约了成本，简化了改善液晶设备的亮度视角过程，从而提高了液晶面板的亮度视角改善效率。
需要说明的是，液晶面板各灰阶分别对应正极性电压、负极性电压和公共电压。而加在液晶上的电压为正极性电压、负极性电压和公共电压的差值。
在一个示例中，可通过实验测试多组历史数据（包括历史亮度视角和历史正极性驱动电压），根据多组历史数据，可得到亮度视角与正极性驱动电压之间的对应关系。进而可基于亮度视角与正极性驱动电压之间的对应关系，处理实际亮度视角值与亮度视角阈值之间的差值，得到正极性驱动电压的目标驱动电压值。
在一个实施例中，如图4所示，提供了一种液晶面板亮度视角调节方法，以该方法应用于图1中的处理设备102为例进行说明，包括以下步骤：
步骤S410，基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值。
步骤S420，在实际亮度视角值小于亮度视角阈值时，保持液晶面板的255阶正极性驱动电压不变，基于预设步长减小液晶面板的255阶负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式。
步骤S430，基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到负极性驱动电压的目标驱动电压值。
步骤S440，根据目标驱动电压值，调节液晶面板的负极性驱动电压。
具体而言，液晶面板的驱动电压包括正极性驱动电压、负极性驱动电压和公共电压（VCOM电压）。处理设备可基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值；将实际亮度视角值与亮度视角阈值进行比对处理，在实际亮度视角值小于亮度视角阈值时，可保持液晶面板的255阶正极性驱动电压不变，基于预设步长减小液晶面板的255阶负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式；并基于正负极性驱动电压与亮度视角之间的关系式，可计算得到实际亮度视角值与亮度视角阈值之间的差值。处理设备可根据实际亮度视角值与亮度视角阈值之间的差值，得到255阶负极性驱动电压的目标驱动电压值；并将当前的255阶负极性驱动电压减小目标驱动电压值；根据减小后的255阶负极性驱动电压，驱动液晶面板，从而实现对液晶面板的亮度视角调节。
优选的，对于液晶面板255阶亮度的白画面的负极性驱动电压范围为0V至2V（伏）。
本实施例中，基于亮度视角阈值，判断当前液晶面板需增加亮度视角的需求，并通过亮度视角与负极性驱动电压的对应关系，得出实际需改变的负极性驱动电压。进而通过保持液晶面板的正极性驱动电压不变，调节基于液晶面板当前画面的负极性驱动电压，进而实现对液晶面板的亮度视角调节。通过在不改变像素设计的情况下，实现对液晶面板的亮度视角调节，进而节约了成本，简化了改善液晶设备的亮度视角过程，从而提高了液晶面板的亮度视角改善效率。
在一个示例中，可通过实验测试多组历史数据（包括历史亮度视角和历史负极性驱动电压），根据多组历史数据，可得到亮度视角与负极性驱动电压之间的对应关系。进而可基于亮度视角与负极性驱动电压之间的对应关系，处理实际亮度视角值与亮度视角阈值之间的差值，得到负极性驱动电压的目标驱动电压值。
在一个实施例中，如图5所示，提供了一种液晶面板亮度视角调节方法，以该方法应用于图1中的处理设备102为例进行说明，包括以下步骤：
步骤S510，基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值。
步骤S520，在实际亮度视角值小于亮度视角阈值时，基于预设步长增大液晶面板的255阶正极性驱动电压，且基于预设步长减小液晶面板的255阶负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式。
步骤S530，基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到正负极性驱动电压的目标驱动电压值。
步骤S540，根据目标驱动电压值，调节液晶面板的正负极性驱动电压。
具体而言，液晶面板的驱动电压包括正极性驱动电压、负极性驱动电压和公共电压（VCOM电压）。处理设备可基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值；将实际亮度视角值与亮度视角阈值进行比对处理，在实际亮度视角值小于亮度视角阈值时，基于预设步长增大液晶面板的255阶正极性驱动电压，且基于预设步长减小液晶面板的255阶负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式；并基于正负极性驱动电压与亮度视角之间的关系式，可计算得到实际亮度视角值与亮度视角阈值之间的差值。处理设备可根据实际亮度视角值与亮度视角阈值之间的差值，得到255阶正极性驱动电压的目标驱动电压值以及255阶负极性驱动电压的目标驱动电压值；将当前的255阶正极性驱动电压增加正极性驱动电压的目标驱动电压值，且将当前的255阶负极性驱动电压减小负极性驱动电压的目标驱动电压值；并根据增加后的255阶正极性驱动电压和减小后的255阶负极性驱动电压，驱动液晶面板，从而实现对液晶面板的亮度视角调节。
本实施例中，基于亮度视角阈值，判断当前液晶面板需增加亮度视角的需求，并通过亮度视角与正负极性驱动电压的对应关系，得出实际需改变的正极性驱动电压和负极性驱动电压。进而通过调节基于液晶面板当前画面的正极性驱动电压和负极性驱动电压，进而实现对液晶面板的亮度视角调节。通过在不改变像素设计的情况下，实现对液晶面板的亮度视角调节，进而节约了成本，简化了改善液晶设备的亮度视角过程，从而提高了液晶面板的亮度视角改善效率。
在一个示例中，可通过实验测试多组历史数据（包括历史亮度视角、历史正极性驱动电压和历史负极性驱动电压），根据多组历史数据，可得到亮度视角与正极性驱动电压之间的对应关系，以及亮度视角与负极性驱动电压之间的对应关系。进而可基于亮度视角与正极性驱动电压之间的对应关系，处理实际亮度视角值与亮度视角阈值之间的差值，得到正极性驱动电压的目标驱动电压值；基于亮度视角与负极性驱动电压之间的对应关系，处理实际亮度视角值与亮度视角阈值之间的差值，得到负极性驱动电压的目标驱动电压值。
在一个实施例中，亮度视角可以是1/3亮度视角；1/3亮度视角指的是亮度可视角在液晶面板屏幕中心的亮度减小到三分之一时的可视角（水平可视角或垂直可视角）。亮度视角还可以是1/2亮度视角。1/2亮度视角指的是亮度可视角在液晶面板屏幕中心的亮度减小到二分之一时的可视角（水平可视角或垂直可视角）。需要说明的是，亮度视角不限于是1/3亮度视角或1/2亮度视角，还可以是对应其它亮度值的可视角。
在一个实施例中，如图6所示，提供了一种液晶面板亮度视角调节方法，以该方法应用于图1中的处理设备102为例进行说明，包括以下步骤：
步骤S610，检测液晶面板的中心点的当前画面的亮度，得到亮度值。
步骤S620，基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值。
步骤S630，在实际亮度视角值小于亮度视角阈值时，基于预设步长调节液晶面板的正负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式。
步骤S640，基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到正负极性驱动电压的目标驱动电压值。
步骤S650，根据目标驱动电压值，调节液晶面板的正负极性驱动电压。
其中，上述步骤S620、步骤S630、步骤S640和步骤S650的具体内容过程可参考上文内容，此处不再赘述。
具体而言，处理设备测量液晶面板中心点的当前画面的亮度，进而可得到当前画面的亮度值。例如，处理设备可包括光学测量仪器，可通过将光学测量仪器置于液晶面板前，并将光学测量仪器的光轴与液晶面板的中心区域正交垂直。通过光学测量仪器测量液晶面板中心点的亮度，并且保持中心点测量位置不变，依次转动光学量测设备（或者液晶面板），进而可测量得到水平和垂直不同角度的亮度。测量亮度随角度的变化而变化，当亮度为0度角的1/3时，记录下角度。进而可得到水平1/3可视角（即水平方向的左右角度之和）和垂直1/3可视角（即垂直方向的上下角度之和）。
本实施例中，通过获取液晶面板当前画面的亮度视角大小，并对获取到的亮度视角进行处理，进而可得到相应的待调节电压差值，并根据待调节电压差值，调节液晶面板的正负极性驱动电压，实现在不改变像素设计的情况下，对液晶面板的亮度视角调节，进而节约了成本，简化了改善液晶设备的亮度视角过程，从而提高了液晶面板的亮度视角改善效率。
在一个实施例中，液晶面板的当前画面为255阶亮度画面。其中，255阶亮度画面指的是纯白画面。
例如，如图7所示，以液晶面板的当前画面为255阶白画面，亮度视角为1/3亮度视角为例进行说明。对255阶白画面调整不同电压（13V、14V、15V、16V和17V），记录不同视角的亮度，并对1/3 亮度视角进行计算得到相应的亮度视角（90度、91度、92度、93度和94度），得出基于255阶白画面的电压对亮度视角的影响趋势。如图可知，提高255阶白画面的电压1V，则提升1/3亮度视角约1度。
为了解决传统的改善液晶设备的亮度视角过程复杂，成本高，液晶设备的亮度视角改善效率低的问题。在一个实施例中，具体说明液晶面板亮度视角的调节原理及过程。
如图8所示，分别测量液晶面板255阶白画面（W）和背光（BLU，Back Light Unit）的亮度视角，通过计算可得到255阶白画面（W）的1/3亮度视角为89度，背光（BLU）的1/3亮度视角为112度。可知，255阶白画面（W）的亮度视角和背光（BLU）的亮度视角不同，背光（BLU）的亮度视角大于255阶白画面（W）的亮度视角，即液晶面板缩小了背光组件的亮度视角。所以需要减弱液晶面板对亮度视角的影响。
进一步的，如图9所示，通过分析，液晶面板收窄亮度视角的原因为随着视角的增加，液晶面板穿透率会逐渐降低。而255阶白画面的亮度（）为背光亮度（）与穿透率（）的乘积，即，所以改善液晶面板收窄亮度视角需要提升液晶面板侧视相对正视的穿透率，让视角穿透率降低幅度降低。
进一步的，如图10所示，增大255阶白画面的电压，正视斜率（正视VT）更易接近饱和区，侧视斜率（侧视VT）未饱和。正视斜率变化小于侧视斜率变化时，侧视穿透率（侧视Tr）相对正视穿透率（正视Tr）增益快，侧视穿透率与正视穿透率的比值增加，进而能够改善255阶白画面的亮度视角。需要说明的是，侧视角度的穿透率为：255阶白画面的侧视亮度除于背光的侧视亮度；正视角度的穿透率为：255阶白画面的正视亮度除于背光的正视亮度。
基于实验分析，通过改变基于255阶白画面的驱动电压，发现基于255阶白画面对应电压越高，亮度视角越宽，即拉高白画面255阶电压，可以有效的改善255阶白画面（W）的亮度视角。进而本申请各实施例能够在不改变像素设计的情况下，实现对液晶面板的亮度视角调节，进而节约了成本，简化了改善液晶设备的亮度视角过程，从而提高了液晶面板的亮度视角改善效率。
应该理解的是，虽然图2和图6的流程图中的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，这些步骤可以以其它的顺序执行。而且，图2和图6中的至少一部分步骤可以包括多个子步骤或者多个阶段，这些子步骤或者阶段并不必然是在同一时刻执行完成，而是可以在不同的时刻执行，这些子步骤或者阶段的执行顺序也不必然是依次进行，而是可以与其它步骤或者其它步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。
在一个实施例中，如图11所示，还提供了一种液晶面板亮度视角调节装置，包括：
亮度视角检测单元112，用于基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值。
关系式确认单元114，用于在实际亮度视角值小于亮度视角阈值时，基于预设步长调节液晶面板的正负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式.
电压值计算单元116，基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到正负极性驱动电压的目标驱动电压值。
亮度视角调节单元118，用于根据目标驱动电压值，调节液晶面板的正负极性驱动电压。
关于液晶面板亮度视角调节装置的具体限定可以参见上文中对于液晶面板亮度视角调节方法的限定，在此不再赘述。上述液晶面板亮度视角调节装置中的各个模块可全部或部分通过软件、硬件及其组合来实现。上述各模块可以硬件形式内嵌于或独立于液晶面板亮度视角调节系统中的处理器中，也可以以软件形式存储于液晶面板亮度视角调节系统中的存储器中，以便于处理器调用执行以上各个模块对应的操作。
在一个实施例中，如图12所示，还提供了一种液晶面板亮度视角调节系统，包括用于连接液晶面板的控制器120；控制器用于执行上述中任一项液晶面板亮度视角调节方法的步骤。
其中，控制器120可以但不限于是单片机或ARM等。
具体地，控制器120可用于执行以下步骤：
基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值；
在实际亮度视角值小于亮度视角阈值时，基于预设步长调节液晶面板的正负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式；
基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到正负极性驱动电压的目标驱动电压值；
根据目标驱动电压值，调节液晶面板的正负极性驱动电压。
具体而言，控制器120可基于液晶面板当前画面的亮度值，检测液晶面板的亮度视角，得到对应当前画面的实际亮度视角值；在实际亮度视角值小于亮度视角阈值时，基于预设步长调节液晶面板的正负极性驱动电压，得到正负极性驱动电压与亮度视角之间的关系式；基于正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到正负极性驱动电压的目标驱动电压值；根据目标驱动电压值，调节液晶面板的正负极性驱动电压，从而实现对液晶面板的亮度视角调节。进而能够在不改变像素设计的情况下，实现对液晶面板的亮度视角调节，节约了成本，简化了改善液晶设备的亮度视角过程，从而提高了液晶面板的亮度视角改善效率。
在一个具体的实施例中，液晶面板亮度视角调节系统还包括用于测量液晶面板当前画面的亮度值的光学测量仪器；光学测量仪器连接控制器。
在一个实施例中，如图13所示，还提供了一种显示装置，包括液晶面板130以及如上述的液晶面板亮度视角调节系统132；液晶面板亮度视角调节系统132连接液晶面板。
其中，液晶面板130可以但不限于是TN（Twisted Nematic，扭曲向列型）面板，VA（Vertical Alignment，垂直排列型）面板，IPS（In-Plane Switching，平面转换型）面板和CPA（Continuous Pinwheel Alignment，连续焰火状排列）面板。
关于显示装置的具体限定可以参见上文中对于液晶面板亮度视角系统以及液晶面板亮度视角调节方法的限定，在此不再赘述。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储于一非易失性计算机可读取存储介质中，该计算机程序在执行时，可包括如上述各除法运算方法的实施例的流程。其中，本申请所提供的各实施例中所使用的对存储器、存储、数据库或其它介质的任何引用，均可包括非易失性和/或易失性存储器。非易失性存储器可包括只读存储器（ROM）、可编程ROM（PROM）、电可编程ROM（EPROM）、电可擦除可编程ROM（EEPROM）或闪存。易失性存储器可包括随机存取存储器（RAM）或者外部高速缓冲存储器。作为说明而非局限，RAM以多种形式可得，诸如静态RAM（SRAM）、动态RAM（DRAM）、同步DRAM（SDRAM）、双数据率SDRAM（DDRSDRAM）、增强型SDRAM（ESDRAM）、同步链路（Synchlink） DRAM（SLDRAM）、存储器总线（Rambus）直接RAM（RDRAM）、直接存储器总线动态RAM（DRDRAM）、以及存储器总线动态RAM（RDRAM）等。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种液晶面板亮度视角调节方法，其中，包括以下步骤：
    基于液晶面板当前画面的亮度值，检测所述液晶面板的亮度视角，得到对应所述当前画面的实际亮度视角值；
    在所述实际亮度视角值小于亮度视角阈值时，基于预设步长调节所述液晶面板的正负极性驱动电压，得到所述正负极性驱动电压与亮度视角之间的关系式；
    基于所述正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到所述正负极性驱动电压的目标驱动电压值；
    根据所述目标驱动电压值，调节所述液晶面板的正负极性驱动电压。
  2. 根据权利要求1所述的液晶面板亮度视角调节方法，其中，所述基于预设步长调节所述液晶面板的正负极性驱动电压，得到所述正负极性驱动电压与亮度视角之间的关系式的步骤包括：
    保持所述液晶面板的255阶负极性驱动电压不变，基于预设步长增大所述液晶面板的255阶正极性驱动电压，得到所述正负极性驱动电压与亮度视角之间的关系式。
  3. 根据权利要求1所述的液晶面板亮度视角调节方法，其中，所述基于预设步长调节所述液晶面板的正负极性驱动电压，得到所述正负极性驱动电压与亮度视角之间的关系式的步骤包括：
    保持所述液晶面板的255阶正极性驱动电压不变，基于预设步长减小所述液晶面板的255阶负极性驱动电压，得到所述正负极性驱动电压与亮度视角之间的关系式。
  4. 根据权利要求1所述的液晶面板亮度视角调节方法，其中，所述基于预设步长调节所述液晶面板的正负极性驱动电压，得到所述正负极性驱动电压与亮度视角之间的关系式的步骤包括：
    基于预设步长增大所述液晶面板的255阶正极性驱动电压，且基于预设步长减小所述液晶面板的255阶负极性驱动电压，得到所述正负极性驱动电压与亮度视角之间的关系式。
  5. 根据权利要求1所述的液晶面板亮度视角调节方法，其中，所述亮度视角为水平可视角或垂直可视角。
  6. 根据权利要求5所述的液晶面板亮度视角调节方法，其中，所述基于液晶面板当前画面的亮度值，检测所述液晶面板的亮度视角的步骤之前包括：
    检测所述液晶面板的中心点的所述当前画面的亮度，得到所述亮度值。
  7. 根据权利要求1所述的液晶面板亮度视角调节方法，其中，所述当前画面为255阶亮度画面。
  8. 一种液晶面板亮度视角调节装置，其中，包括：
    亮度视角检测单元，用于基于液晶面板当前画面的亮度值，检测所述液晶面板的亮度视角，得到对应所述当前画面的实际亮度视角值；
    关系式确认单元，用于在所述实际亮度视角值小于亮度视角阈值时，基于预设步长调节所述液晶面板的正负极性驱动电压，得到所述正负极性驱动电压与亮度视角之间的关系式；
    电压值计算单元，基于所述正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到所述正负极性驱动电压的目标驱动电压值；
    亮度视角调节单元，用于根据所述目标驱动电压值，调节所述液晶面板的正负极性驱动电压。
  9. 一种液晶面板亮度视角调节系统，其中，包括用于连接液晶面板的控制器；所述控制器用于执行以下步骤：
    基于液晶面板当前画面的亮度值，检测所述液晶面板的亮度视角，得到对应所述当前画面的实际亮度视角值；
    在所述实际亮度视角值小于亮度视角阈值时，基于预设步长调节所述液晶面板的正负极性驱动电压，得到所述正负极性驱动电压与亮度视角之间的关系式；
    基于所述正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到所述正负极性驱动电压的目标驱动电压值；
    根据所述目标驱动电压值，调节所述液晶面板的正负极性驱动电压。
  10. 一种显示装置，其中，包括液晶面板以及液晶面板亮度视角调节系统；
    所述液晶面板亮度视角调节系统包括连接所述液晶面板的控制器；所述控制器用于执行以下步骤：
    基于液晶面板当前画面的亮度值，检测所述液晶面板的亮度视角，得到对应所述当前画面的实际亮度视角值；
    在所述实际亮度视角值小于亮度视角阈值时，基于预设步长调节所述液晶面板的正负极性驱动电压，得到所述正负极性驱动电压与亮度视角之间的关系式；
    基于所述正负极性驱动电压与亮度视角之间的关系式，处理实际亮度视角值与亮度视角阈值之间的差值，得到所述正负极性驱动电压的目标驱动电压值；
    根据所述目标驱动电压值，调节所述液晶面板的正负极性驱动电压。
PCT/CN2020/070562 2019-12-24 2020-01-07 液晶面板亮度视角调节方法、装置、系统及显示装置 WO2021128459A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/754,759 US11538429B2 (en) 2019-12-24 2020-01-07 Method, device, system, and display device for adjusting luminance viewing angle of liquid crystal display panel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911348807.3 2019-12-24
CN201911348807.3A CN111028808B (zh) 2019-12-24 2019-12-24 液晶面板亮度视角调节方法、装置、系统及显示装置

Publications (1)

Publication Number Publication Date
WO2021128459A1 true WO2021128459A1 (zh) 2021-07-01

Family

ID=70212903

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/070562 WO2021128459A1 (zh) 2019-12-24 2020-01-07 液晶面板亮度视角调节方法、装置、系统及显示装置

Country Status (3)

Country Link
US (1) US11538429B2 (zh)
CN (1) CN111028808B (zh)
WO (1) WO2021128459A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111812874B (zh) * 2020-07-02 2021-07-06 深圳市华星光电半导体显示技术有限公司 显示面板的暗态视角的调整方法及其装置
CN111986626B (zh) * 2020-08-07 2021-09-24 深圳市华星光电半导体显示技术有限公司 计算事先未知背光模组亮度视角的方法及背光模组

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1308743C (zh) * 2003-03-31 2007-04-04 夏普株式会社 液晶显示装置及电子装置
CN101499250A (zh) * 2008-02-01 2009-08-05 爱普生映像元器件有限公司 液晶显示装置的控制方法、液晶显示装置以及电子设备
WO2013051057A1 (ja) * 2011-10-04 2013-04-11 三菱電機株式会社 液晶表示装置
US20140354709A1 (en) * 2009-10-14 2014-12-04 Dolby Laboratories Licensing Corporation Variable Flower Display Backlight System
CN104698647A (zh) * 2015-04-07 2015-06-10 合肥京东方显示光源有限公司 液晶显示装置及其控制方法
CN107358929A (zh) * 2017-08-28 2017-11-17 惠科股份有限公司 显示装置视角补偿计算的方法、视角补偿结构及显示装置

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2951352B2 (ja) * 1990-03-08 1999-09-20 株式会社日立製作所 多階調液晶表示装置
US5650796A (en) * 1991-03-08 1997-07-22 Hitachi, Ltd. Matrix liquid crystal display having function to correct viewing angle
US6061045A (en) * 1995-06-19 2000-05-09 Canon Kabushiki Kaisha Liquid crystal display apparatus and method of driving same
CN1170265C (zh) * 2001-09-28 2004-10-06 义隆电子股份有限公司 调整液晶显示器明亮对比的脉冲宽度调变装置
KR100932379B1 (ko) * 2002-12-30 2009-12-16 엘지디스플레이 주식회사 액정표시장치 및 그 구동방법
KR101245924B1 (ko) * 2006-06-20 2013-03-20 엘지디스플레이 주식회사 액정표시장치
JP2009229800A (ja) * 2008-03-24 2009-10-08 Epson Imaging Devices Corp 液晶装置及び電子機器
US8760479B2 (en) * 2008-06-16 2014-06-24 Samsung Display Co., Ltd. Liquid crystal display
CN101847358A (zh) * 2009-03-27 2010-09-29 北京京东方光电科技有限公司 伽马参考电压生成装置
US8878761B2 (en) * 2009-10-21 2014-11-04 Sharp Kabushiki Kaisha Liquid crystal display device and method for driving liquid crystal display device
CN104240679B (zh) * 2013-06-19 2017-05-24 联想(北京)有限公司 一种调节显示单元的方法及一种电子设备
CN103413535B (zh) * 2013-08-08 2016-12-28 深圳创维－Rgb电子有限公司 一种提高液晶显示屏可视角范围的方法和装置
CN104464674B (zh) * 2014-12-26 2017-12-08 小米科技有限责任公司 液晶显示器调整方法及装置
CN105529011B (zh) * 2016-02-18 2018-04-06 京东方科技集团股份有限公司 显示面板及驱动方法、显示装置
CN105528994B (zh) * 2016-02-22 2019-03-15 深圳市华星光电技术有限公司 一种降低显示面板功耗的方法及系统
CN106504717B (zh) * 2016-12-27 2018-01-12 惠科股份有限公司 一种显示装置的驱动方法及显示装置
CN107085320B (zh) * 2017-04-14 2020-02-07 深圳市华星光电技术有限公司 一种液晶面板光程差的测量方法
WO2018214080A1 (zh) * 2017-05-24 2018-11-29 昆山龙腾光电有限公司 视角可切换的触控显示面板及触控显示装置
CN107610660B (zh) * 2017-09-18 2019-08-09 惠科股份有限公司 一种显示装置的驱动方法及显示装置
CN107808649B (zh) 2017-10-10 2019-07-12 惠科股份有限公司 显示面板的驱动方法及显示装置
CN107993624B (zh) * 2017-12-21 2019-12-03 惠科股份有限公司 显示装置的驱动方法、驱动装置及显示装置
CN108281111A (zh) * 2018-01-19 2018-07-13 云谷（固安）科技有限公司 显示控制方法和装置
CN108597428A (zh) * 2018-04-28 2018-09-28 惠州市华星光电技术有限公司 驱动电压调试方法及液晶显示器
CN109377966B (zh) * 2018-12-24 2020-10-27 惠科股份有限公司 一种显示方法、系统及显示装置
CN109671409A (zh) * 2019-01-30 2019-04-23 惠科股份有限公司 显示面板的驱动装置、驱动方法、显示设备及存储介质
CN110379940B (zh) * 2019-08-27 2021-09-03 昆山工研院新型平板显示技术中心有限公司 显示基板、显示面板以及显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1308743C (zh) * 2003-03-31 2007-04-04 夏普株式会社 液晶显示装置及电子装置
CN101499250A (zh) * 2008-02-01 2009-08-05 爱普生映像元器件有限公司 液晶显示装置的控制方法、液晶显示装置以及电子设备
US20140354709A1 (en) * 2009-10-14 2014-12-04 Dolby Laboratories Licensing Corporation Variable Flower Display Backlight System
WO2013051057A1 (ja) * 2011-10-04 2013-04-11 三菱電機株式会社 液晶表示装置
CN104698647A (zh) * 2015-04-07 2015-06-10 合肥京东方显示光源有限公司 液晶显示装置及其控制方法
CN107358929A (zh) * 2017-08-28 2017-11-17 惠科股份有限公司 显示装置视角补偿计算的方法、视角补偿结构及显示装置

Also Published As

Publication number Publication date
CN111028808A (zh) 2020-04-17
US20220319456A1 (en) 2022-10-06
CN111028808B (zh) 2021-10-08
US11538429B2 (en) 2022-12-27

Similar Documents

Publication Publication Date Title
KR101430455B1 (ko) 액정디스플레이의 눈부심 방지 장치 및 방법
US9953610B2 (en) Method for regulating common voltage, regulating device and display device
US10319318B2 (en) Image display device and driving method thereof
US9959823B2 (en) Liquid crystal display device and method of driving the same
CN109712584B (zh) 液晶显示装置的调试方法
KR20170136151A (ko) 광 밸브 패널과 이를 이용한 액정표시장치
US9761193B2 (en) Liquid crystal display and driving method thereof
US20150154929A1 (en) Method of adjusting display device driving voltage and display device
KR101730328B1 (ko) 액정 표시장치와 이의 구동방법
CN107093410B (zh) 液晶显示亮度调控方法、装置以及液晶显示屏
KR102363126B1 (ko) 표시 장치
US20100214316A1 (en) Device and method for driving liquid crystal display device
WO2021128459A1 (zh) 液晶面板亮度视角调节方法、装置、系统及显示装置
US20190325830A1 (en) Display control method and apparatus, computer readable storage medium, and computer device
US8237755B2 (en) Apparatus and method for driving a liquid crystal display device
WO2023039945A1 (zh) 显示装置及其驱动方法
US20200357351A1 (en) Method for Driving Liquid Crystal Display Apparatus
KR101385470B1 (ko) 액정표시장치와 그 구동방법
CN109285523B (zh) 液晶显示面板的驱动系统及液晶显示面板的驱动方法
KR101615769B1 (ko) 수평 전계형 액정표시장치 및 그 구동방법
US20200243027A1 (en) Liquid Crystal Display Apparatus
US20230123257A1 (en) Method, device, and electronic device for adjusting viewing angle for dark state of display panel
KR101519915B1 (ko) 액정 표시 장치와 그 구동 방법
KR101777867B1 (ko) 액정표시장치와 그의 구동방법
KR20110071538A (ko) 액정 표시장치의 구동장치와 그 구동방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20906038

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20906038

Country of ref document: EP

Kind code of ref document: A1