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WO2018121518A1 - 液晶显示器及其驱动方法 - Google Patents

液晶显示器及其驱动方法 Download PDF

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Publication number
WO2018121518A1
WO2018121518A1 PCT/CN2017/118574 CN2017118574W WO2018121518A1 WO 2018121518 A1 WO2018121518 A1 WO 2018121518A1 CN 2017118574 W CN2017118574 W CN 2017118574W WO 2018121518 A1 WO2018121518 A1 WO 2018121518A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
pixel
row
column
rectangular
Prior art date
Application number
PCT/CN2017/118574
Other languages
English (en)
French (fr)
Inventor
陈猷仁
Original Assignee
惠科股份有限公司
重庆惠科金渝光电科技有限公司
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 惠科股份有限公司, 重庆惠科金渝光电科技有限公司 filed Critical 惠科股份有限公司
Priority to US16/309,025 priority Critical patent/US20190311685A1/en
Publication of WO2018121518A1 publication Critical patent/WO2018121518A1/zh

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Classifications

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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
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Definitions

  • the present invention belongs to the field of display technologies, and in particular, to a liquid crystal display and a driving method thereof.
  • LCDs liquid crystal displays
  • a liquid crystal panel In a liquid crystal display, a liquid crystal panel, a backlight module, and a driving module for driving the liquid crystal panel and the backlight module are generally included, wherein the liquid crystal panel includes a color filter substrate (ie, a CF substrate) and an array substrate (ie, Army) a substrate) and a liquid crystal interposed therebetween.
  • a color filter substrate ie, a CF substrate
  • an array substrate ie, Army
  • a liquid crystal interposed therebetween In the existing large-size liquid crystal panels, negatively-type VA (Vertically Aligned) liquid crystals are often used. However, negative-type VA liquid crystals have many defects, especially when a large viewing angle is required, and a negative-type VA-type liquid crystal is used. When the liquid crystal panel is viewed from a large viewing angle, a color shift phenomenon occurs.
  • each sub-pixel is often subdivided into a Main/Sub sub-pixel, and a different pixel voltage is supplied to the Main/Sub sub-pixel.
  • a pixel design often requires the addition of metal traces and thin film transistors (TFTs) to drive the Main/Sub sub-pixels, thereby causing the sacrifice of the cornice rate, and reducing the transmittance of the liquid crystal panel, in order to maintain the original transparency.
  • TFTs thin film transistors
  • the light rate needs to increase the brightness of the light emitted by the backlight module, thereby directly increasing the cost of the backlight module.
  • the present invention provides a liquid crystal display that solves the problem of low color shift and does not affect the mouth rate, and a driving method thereof.
  • the present invention provides a liquid crystal display, comprising: a liquid crystal panel comprising a plurality of liquid crystal pixels arranged in an array and arranged to display the same picture in two adjacent frames; a driving module for adjacent two Frame division Do not provide high and low pixel voltages of the same polarity to each liquid crystal pixel, so that the liquid crystal molecules of each liquid crystal pixel are deflected, wherein in each frame of two adjacent frames, the pixel voltage of each liquid crystal pixel is different from The pixel voltage of the liquid crystal pixel in which the liquid crystal pixel is spaced apart by one pixel in the first direction, the second direction, the third direction, and the fourth direction is different.
  • the liquid crystal display further includes a backlight module, the liquid crystal panel is divided into MxN rectangular panel partitions, and the backlight module is divided into MxN rectangular backlight partitions, l ⁇ i ⁇ M, l ⁇ j ⁇ N, the rectangular panel partition of the i-th row and the j-th column corresponds to the rectangular backlight partition of the i-th row and the j-th column; in each frame of the adjacent two frames, each liquid crystal pixel in each rectangular panel partition After the liquid crystal molecules are deflected, the driving module is further configured to drive all the rectangular backlight partitions to emit light at the same time; or in each frame of the adjacent two frames, each of the rectangular panel partitions in the i-th row and the j-th column After the liquid crystal molecules of the liquid crystal pixels are deflected, the driving module is further configured to drive the rectangular backlight partitions of the i-th row and the j-th column to emit light, until all the rectangular backlight partitions are driven to emit light.
  • the driving module is further configured
  • L iU represents the brightness of the rectangular backlight partition of the i-th row and the j-th column in the previous frame of the adjacent two frames
  • ⁇ — represents the i-th row and the j-th column of the previous frame of the adjacent two frames.
  • L ij- 2 represents a brightness of a backlight two rectangular partitions an i-th row j-th column adjacent, ⁇ - 2 indicates the two adjacent frames
  • the rectangular panel of the i-th row and the j-th column in one frame partitions the sum of the pixel voltages of all the liquid crystal pixels.
  • L ij represents the brightness of the rectangular backlight partition when the liquid crystal display is set to display only the i-th row and the j-th column of the screen in one frame
  • V represents when the liquid crystal display is set to only The sum of the pixel voltages of all the liquid crystal pixels in the frame ⁇ rectangular panel partition is displayed in one frame
  • L ⁇ represents the brightness of the rectangular backlight partition of the i-th row and the j-th column in the previous frame of the adjacent two frames
  • V iU represents The sum of the pixel voltages of all the liquid crystal pixels in the rectangular panel partition of the i-th row and the j-th column in the previous frame of the adjacent two frames
  • L 2 represents the rectangular backlight of the i-th row and the j-th column in the subsequent frame of the adjacent two frames
  • the brightness of the partition, V 2 represents the ith line in the next frame of two adjacent frames
  • the present invention also provides a driving method of a liquid crystal display, the liquid crystal display includes a liquid crystal panel, a driving module, the liquid crystal panel includes a plurality of liquid crystal pixels arranged in an array, and the liquid crystal panel is disposed at Display the same picture in two adjacent frames;
  • the driving method of the liquid crystal display comprises:
  • the driving module supplies a pixel voltage to each liquid crystal pixel to deflect all liquid crystal molecules of each liquid crystal pixel;
  • the driving module supplies a pixel voltage to each liquid crystal pixel to deflect all liquid crystal molecules of each liquid crystal pixel;
  • each liquid crystal pixel is different from the pixel voltage of the liquid crystal pixel adjacent to the liquid crystal pixel in the first direction, the second direction, the third direction, and the fourth direction,
  • the pixel voltages of the same liquid crystal pixel in the previous frame and the subsequent frame are the same in polarity and different in height.
  • the liquid crystal display further includes a backlight module, the liquid crystal panel is divided into MxN rectangular panel partitions, and the backlight module is divided into MxN rectangular backlight partitions, l ⁇ i ⁇ M, l ⁇ j ⁇ N, the rectangular panel partition of the i-th row and the j-th column corresponds to the rectangular backlight partition of the i-th row and the j-th column;
  • the driving method of the liquid crystal display further includes:
  • the driving module drives all the rectangular backlight partitions to emit light simultaneously;
  • the driving module drives all the rectangular backlight partitions to emit light simultaneously;
  • the driving method of the liquid crystal display further includes:
  • the driving module drives the rectangle of the i-th row and the j-th column
  • the backlight partitions out the light until it drives all of the rectangular backlight partitions to emit light.
  • the driving module drives the rectangle of the i-th row and the j-th column
  • the backlight partitions out the light until it drives all of the rectangular backlight partitions to emit light.
  • L iU represents the brightness of the rectangular backlight partition of the i-th row and the j-th column in the previous frame of the adjacent two frames
  • ⁇ — represents the i-th row and the j-th column of the previous frame of the adjacent two frames.
  • the present invention also provides a liquid crystal display, comprising: a liquid crystal panel comprising a plurality of liquid crystal pixels arranged in an array and arranged to display the same picture in two adjacent frames; a driving module for adjacent In each of the two frames, different liquid crystal pixels of the same polarity are provided to each liquid crystal pixel to deflect liquid crystal molecules of each liquid crystal pixel, wherein in each frame of two adjacent frames, the pixel voltage of each liquid crystal pixel is The pixel voltages of the liquid crystal pixels of the pixel sections in which the liquid crystal pixels are spaced apart by a plurality of pixel distances in the first direction, the second direction, the third direction, and the fourth direction are associated in an associative relationship.
  • the association relationship is that the pixel voltage of each liquid crystal pixel is spaced apart from the pixel of the liquid crystal pixel by a plurality of pixel distances in the first direction, the second direction, the third direction, and the fourth direction.
  • the pixel voltage of each liquid crystal pixel in the interval is different.
  • the correlation relationship is that the pixel voltage of each liquid crystal pixel is different from the pixel voltage of the liquid crystal pixel spaced apart by one pixel.
  • the liquid crystal display further includes a backlight module, the liquid crystal panel is divided into MxN rectangular panel partitions, and the backlight module is divided into MxN rectangular backlight partitions, l ⁇ i ⁇ M, l ⁇ j ⁇ N, the rectangular panel partition of the i-th row and the j-th column corresponds to the rectangular backlight partition of the i-th row and the j-th column;
  • the driving module is further configured to drive all of the rectangular backlight partitions to emit light at the same time.
  • the liquid crystal panel is divided into MxN rectangular panel partitions, and the backlight module is divided.
  • MxN rectangular backlight partitions l ⁇ i ⁇ M, l ⁇ j ⁇ N
  • the rectangular panel partition of the i-th row and the j-th column corresponds to the rectangular backlight partition of the i-th row and the j-th column;
  • the driving module is further used to drive the i-th row Column of rectangular backlight partitions to emit light
  • the sum of the pixel voltages of all the liquid crystal pixels in the rectangular panel partition of the i-th row and the j-th column and the brightness of the rectangular backlight partition of the i-th row and the j-th column satisfy the following formula 1.
  • L iU represents the brightness of the rectangular backlight partition of the i-th row and the j-th column in the previous frame of the adjacent two frames
  • ⁇ — represents the i-th row and the j-th column of the previous frame of the adjacent two frames.
  • All rectangular panel partition liquid crystal pixels and the pixel voltage
  • L ij- 2 represents the brightness after a two in row i and column j of adjacent rectangular partitions backlight
  • ⁇ - 2 represents the two adjacent frames
  • the rectangular panel of the i-th row and the j-th column in one frame partitions the sum of the pixel voltages of all the liquid crystal pixels.
  • L represents a brightness of a rectangular backlight partition when the liquid crystal display is set to display only the i-th row and the j-th column of the picture in one frame
  • V represents when the liquid crystal display is set to be only
  • L ⁇ represents the brightness of the rectangular backlight partition in the i-th row and the j-th column in the previous frame of the adjacent two frames
  • V iU indicates phase
  • L 2 represents the rectangular backlight partition of the i-th row and the j-th column in the subsequent frame of the adjacent two frames
  • the brightness, V 2 represents the sum of the pixel voltages of all the liquid crystal pixels in the rectangular panel partition of the i-th row and the j-th column in the subsequent frame of the adjacent two frames.
  • L represents a brightness of a rectangular backlight partition when the liquid crystal display is set to display only the i-th row and the j-th column of the picture in one frame
  • V represents when the liquid crystal display is set to be only The sum of the pixel voltages of all the liquid crystal pixels in the frame ⁇ rectangular panel partition is displayed in one frame.
  • the pixel voltage of each liquid crystal pixel is high and low.
  • the pixel voltages of the liquid crystal pixels adjacent to each other in the first direction, the second direction, the third direction, and the fourth direction are different, so that the liquid crystal panel displays the same picture in the adjacent two frames, and the realization is low.
  • the color-off-angle compensation effect that is, viewing the liquid crystal panel ⁇ in a large viewing angle direction, does not cause color shift phenomenon, and the liquid crystal pixel does not perform Main/Sub sub-pixels, and there is no need to add metal traces and thin film transistors to drive Main/ Sub sub-pixels so that the mouth rate is not reduced.
  • the luminance of each rectangular backlight partition is equal to the sum of the sum of the pixel voltages of all the liquid crystal pixels in the corresponding rectangular panel partition, so that each rectangular panel is partitioned in two adjacent frames.
  • the display brightness is the same, which can eliminate flicker.
  • the sum of the luminances of the same screen displayed in the adjacent two frames of the rectangular panel of the liquid crystal panel is two that the liquid crystal panel that does not perform the low color shift angle compensation effect displays the brightness of the screen in one frame.
  • the brightness of the screen displayed on the liquid crystal panel is the same as the brightness of the screen displayed on the liquid crystal panel which does not have a low color shift angle compensation effect.
  • FIG. 1 is a schematic structural view of a liquid crystal display according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a liquid crystal display according to another embodiment of the present invention.
  • FIG. 3 is a flow chart showing a driving method of the liquid crystal display shown in FIG. 1.
  • FIG. 4 is a flow chart showing a driving method of the liquid crystal display shown in FIG. 2.
  • FIG. 5 is a flow chart showing another driving method of the liquid crystal display shown in FIG. 2.
  • FIG. 1 is a schematic structural view of a liquid crystal display according to an embodiment of the present invention.
  • a liquid crystal display includes: a liquid crystal panel 10, a driving module 20, and a backlight module 30.
  • the liquid crystal panel 10 may include a color filter substrate (ie, a CF substrate) and an array substrate (ie, an Army substrate) provided to the cartridge, and a negative-type VA liquid crystal interposed therebetween. That is, the liquid crystal panel 10 is a liquid crystal panel having a VA display mode.
  • the specific structure of the color filter substrate and the array substrate and how the liquid crystal panel 10 is constituted by the color filter substrate, the array substrate, and the negative VA liquid crystal will not be described herein.
  • the liquid crystal panel 10 and the backlight module 30 are disposed facing each other, and the two are combined and fixed by a fixing structure such as an outer frame.
  • the driving module 20 drives the backlight module 30 to emit light for use in the liquid crystal panel 10.
  • Fig. 1 the assembled state of the liquid crystal panel 10 and the backlight module 30 is not shown for the convenience of description of the embodiment.
  • the liquid crystal panel 10 includes AxB liquid crystal pixels (ie, sub-pixels) P consult, P 12 , . . . , P AB .
  • the liquid crystal pixel P ab (where l ⁇ a ⁇ A, l ⁇ b ⁇ B, and a and b are integers) pixel of the liquid crystal can be red, green or blue pixels of the liquid crystal pixels of the liquid crystal, but the present invention is not limited thereto.
  • these liquid crystal pixels P ", P 12, ......, P At least one red liquid crystal pixel, at least one green liquid crystal pixel, and at least one blue liquid crystal pixel must be included in the AB .
  • the liquid crystal pixels of the same color in the column direction are arranged in the order of the red liquid crystal pixels, the green liquid crystal pixels, and the blue liquid crystal pixels in the row direction.
  • each liquid crystal pixel is no longer subdivided into Main/Sub sub-pixels.
  • the technical solution adopted in this embodiment is: setting the liquid crystal panel 10 to display the same picture in two adjacent frames; the driving module 20 is in two adjacent frames. Providing a pixel voltage of the same polarity to each liquid crystal pixel to deflect the liquid crystal molecules of each liquid crystal pixel; wherein in each frame of two adjacent frames, the pixel voltage of each liquid crystal pixel is different from The liquid crystal pixels have different pixel voltages of liquid crystal pixels adjacent in the first direction, the second direction, the third direction, and the fourth direction.
  • the frame refresh frequency of the liquid crystal panel 10 is doubled.
  • the frame refresh frequency of the liquid crystal panel 10 is 120 Hz.
  • the specific frame refresh frequency can be improved by referring to the related content of the prior art. No longer.
  • the pixel drive module 20 provides a high voltage (or low pixel voltage) to the liquid crystal pixels P ab, so that the liquid crystal molecules of the liquid crystal pixel P ab deflection, and
  • the driving module 20 provides a low pixel voltage (or a high pixel voltage) to the liquid crystal pixels P ( a 1 ) b , the liquid crystal pixels P a ⁇ , the liquid crystal pixels P a (b+1), and the liquid crystal pixels P ( a+1) b . .
  • the pixel drive module 20 After one of the two adjacent frames, the pixel drive module 20 provides a low voltage (or high voltage pixel) to the liquid crystal pixels P ab, so that the liquid crystal molecules of the liquid crystal pixel P ab deflection driving the liquid crystal module 20
  • the pixel P ( a - 1)b , the liquid crystal pixel ⁇ , the liquid crystal pixel P a(b+1), and the liquid crystal pixel P( a+1)b each provide a high pixel voltage (or low pixel voltage).
  • each liquid crystal pixel is different from the pixel voltage of the liquid crystal pixel adjacent to the liquid crystal pixel in the first direction, the second direction, the third direction, and the fourth direction. And each liquid crystal pixel is different in the pixel voltage supplied in the adjacent two frames. It should be noted that the high pixel voltage and the low pixel voltage have the same polarity, so that the liquid crystal panel 10 can display the same picture in the adjacent two frames.
  • the high pixel voltage and the low pixel voltage are determined by the viewing angle effect that has been previously compensated according to the input RGB signal and are required to be compensated, and are generally recorded in the driving module 10 in a look-up table (LUT) manner.
  • LUT look-up table
  • each of the input RGB signals corresponds to 256 pairs of high and low pixel voltages, thus sharing 3x256 high pixel voltages and 3x256 low pixel voltages.
  • the pixel voltage of each liquid crystal pixel is high or low.
  • the pixel voltages of the liquid crystal pixels adjacent to the liquid crystal pixels in the first direction, the second direction, the third direction, and the fourth direction are different, so that the liquid crystal panel 10 displays the same screen in two adjacent frames. ⁇ , the low color-off-angle compensation effect is achieved, that is, when the liquid crystal panel 10 is viewed in a large viewing angle direction, color shift phenomenon does not occur.
  • the backlight module 30 is further divided into brightness regions, and the brightness of each brightness region is dynamically adjusted.
  • the flicker phenomenon is eliminated.
  • FIG. 2 is a schematic structural view of a liquid crystal display according to another embodiment of the present invention. In the following, only the embodiment shown in FIG. 2 is different from the embodiment shown in FIG. 1. Instructions are given.
  • ⁇ M, l ⁇ j ⁇ N, and i and j are integers.
  • i and j are integers.
  • the number of liquid crystal pixels included in the rectangular panel section 10 is the same, but may be different as another embodiment.
  • L iU represents the brightness of the rectangular panel partition 10 in the previous frame of the adjacent two frames
  • ⁇ — represents the pixel voltage of all the liquid crystal pixels in the rectangular panel partition 10 ij in the previous frame of the adjacent two frames
  • L 2 represents the luminance of the rectangular backlight partition 30 in the subsequent frame of the adjacent two frames
  • V 2 represents the sum of the pixel voltages of all the liquid crystal pixels in the rectangular backlight partition 30 in the subsequent frame of the adjacent two frames.
  • the product of the light transmittance of the liquid crystal pixel and the backlight brightness is the display brightness of the liquid crystal pixel, that is, the pixel voltage of the liquid crystal pixel.
  • the product of the backlight brightness can indicate the display brightness of the liquid crystal pixel.
  • the manner in which the backlight module 30 provides the display light to the liquid crystal panel 10 may include the following two methods.
  • the two methods described below are only examples.
  • the invention may also include other suitable means.
  • the first way for the backlight module 30 to provide the display light to the liquid crystal panel 10 is: in each frame of the adjacent two frames, in all the rectangular panel partitions 10 administrat, 10 12 , ... After the liquid crystal molecules of all the liquid crystal pixels in the MN are deflected, the driving module 20 drives all the rectangular backlight partitions 30 administrat, 30 12 , ..., 30 MN to emit light.
  • the driving module 20 drives all the rectangular backlight partitions 30 administrat, 30 12 , ..., 30 MN to emit light.
  • the brightness of each rectangular backlight partition may be different or the same, and each is controlled by the driving module 20.
  • the second way for the backlight module 30 to provide the display light to the liquid crystal panel 10 is: each frame of two adjacent frames After the liquid crystal molecules of all the liquid crystal pixels in the rectangular panel section 10 are deflected, the driving module 20 drives the rectangular backlight partition 30 to emit light until all the rectangular backlight partitions 30, 30 12 , ... are driven.
  • the drive module 20 drives the respective rectangular backlight partitions.
  • the brightness of each rectangular backlight partition may be different or the same, and each is controlled by the driving module 20.
  • each rectangular panel of the liquid crystal panel 10 is partitioned in two adjacent frames.
  • the sum of the brightness of the same picture displayed is that the liquid crystal panel that does not perform the low color shift angle compensation effect twice displays the brightness of the picture in one frame.
  • L indicates that the liquid crystal panel that is not subjected to low color shift angle compensation is set to display the brightness of the corresponding rectangular backlight partition in only one frame
  • V represents liquid crystal when the low color shift angle compensation is not performed.
  • the panel is arranged to display the sum of the pixel voltages of all the liquid crystal pixels in the corresponding rectangular panel section of the picture in only one frame. It should be noted that the liquid crystal panel which is not subjected to low color shift angle compensation is different in the picture displayed in different frames.
  • FIG. 3 is a flow chart showing the driving method of the liquid crystal display shown in Fig. 1.
  • a driving method of a liquid crystal display includes:
  • S310 in a previous frame of two adjacent frames, the driving module 20 supplies a pixel voltage to each liquid crystal pixel of the liquid crystal panel 10 to deflect all liquid crystal molecules of each liquid crystal pixel;
  • S320 in a subsequent frame of two adjacent frames, the driving module 20 supplies a pixel voltage to each liquid crystal pixel of the liquid crystal panel 10 to deflect all liquid crystal molecules of each liquid crystal pixel;
  • the pixel voltage of each liquid crystal pixel is adjacent to the liquid crystal pixel in the first direction, the second direction, the third direction, and the fourth direction
  • the pixel voltages of the pixels are different in height, and the pixel voltages of the same liquid crystal pixel have the same polarity and different heights.
  • a driving method of a liquid crystal display according to an embodiment of the present invention includes:
  • S410 in a previous frame of two adjacent frames, the driving module 20 supplies a pixel voltage to each liquid crystal pixel of the liquid crystal panel 10 to deflect all liquid crystal molecules of each liquid crystal pixel;
  • the liquid crystal pixels of the liquid crystal molecules 10 deflects all of the driving module 20 drives the backlight rectangular partition 30 ", 3012, —, 30-inch with the light emitted;
  • S430 in a subsequent frame of two adjacent frames, the driving module 20 supplies a pixel voltage to each liquid crystal pixel of the liquid crystal panel 10 to deflect all liquid crystal molecules of each liquid crystal pixel;
  • the pixel voltage of each liquid crystal pixel is spaced apart from the liquid crystal pixel by one pixel in the first direction, the second direction, the third direction, and the fourth direction.
  • the pixel voltage of the liquid crystal pixel is different, and the pixel voltages of the same liquid crystal pixel have the same polarity and different heights;
  • the pixel voltage of each liquid crystal pixel is spaced apart from the liquid crystal pixel by the first direction, the second direction, the third direction, and the fourth direction.
  • the pixel voltages of the liquid crystal pixels in the pixel interval of the pixel distance are different, and the pixel voltages of the same liquid crystal pixel have the same polarity and different heights;
  • the pixel voltage of each liquid crystal pixel is different from the pixel voltage of the liquid crystal pixel spaced apart by one pixel, and the pixel voltage of the same liquid crystal pixel is extremely different.
  • FIG. 5 is a flow chart showing another driving method of the liquid crystal display shown in FIG. 2.
  • a driving method of a liquid crystal display includes:
  • S510 in a previous frame of two adjacent frames, the driving module 20 supplies a pixel voltage to each liquid crystal pixel of the liquid crystal panel 10 to deflect all liquid crystal molecules of each liquid crystal pixel;
  • the pixel voltage of each liquid crystal pixel is spaced apart from the liquid crystal pixel by one pixel in the first direction, the second direction, the third direction, and the fourth direction.
  • the pixel voltage of the liquid crystal pixel is different, and the pixel voltages of the same liquid crystal pixel have the same polarity and different heights;
  • the pixel voltage of each liquid crystal pixel is spaced apart from the liquid crystal pixel by the first direction, the second direction, the third direction, and the fourth direction.
  • the pixel voltages of the liquid crystal pixels in the pixel interval of the pixel distance are different, and the pixel voltages of the same liquid crystal pixel have the same polarity and different heights;
  • the pixel voltage of each liquid crystal pixel is different from the pixel voltage of the liquid crystal pixel spaced apart by one pixel, and the pixel voltage of the same liquid crystal pixel is extremely different.
  • the sum of the pixel voltages of all the liquid crystal pixels in the rectangular panel section 10 and the brightness of the rectangular backlight section 30 satisfy the above formula 1 and/or Equation 2.
  • the thin film transistor drives the Main/Sub sub-pixels so that the mouth rate is not reduced.
  • the luminance of each rectangular backlight partition is equal to the sum of the sum of the pixel voltages of all the liquid crystal pixels in the corresponding rectangular panel partition, so that each rectangular panel is partitioned in two adjacent frames.
  • the display brightness is the same, which can eliminate flicker.
  • the sum of the luminances of the same screen displayed in the adjacent two frames of each rectangular panel of the liquid crystal panel is displayed in one frame of the liquid crystal panel without the low color shift angle compensation effect.
  • the brightness of the screen is twice as large as the brightness of the screen displayed on the liquid crystal panel without the low color shift angle compensation effect.

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Abstract

一种液晶显示器，包括液晶面板（10）、驱动模块（20），液晶面板（10）包括阵列排布的多个液晶像素，液晶显示器被设置为在相邻两帧中显示同一画面；驱动模块（20）用于在相邻两帧中分别向每个液晶像素提供高低不同的同极性像素电压，以使每个液晶像素的液晶分子偏转；其中在相邻两帧的每一帧中，每个液晶像素的像素电压的高低都与液晶像素沿第一方向、第二方向、第三方向、第四方向间隔一像素的液晶像素的像素电压高低不同。还提供了一种液晶显示器的驱动方法。

Description

液晶显示器及其驱动方法 技术领域
[0001] 本发明属于显示技术领域， 尤其涉及一种液晶显示器及其驱动方法。
背景技术
[0002] 随着光电与半导体技术的演进， 也带动了平板显示器 （Flat Panel Display) 的 蓬勃发展， 而在诸多平板显示器中， 液晶显示器 （Liquid Crystal Display, LCD
) 因具有高空间利用效率、 低消耗功率、 无辐射以及低电磁干扰等诸多优越特 性， 已被应用于生产生活的各个方面。
[0003] 在液晶显示器中， 通常包括液晶面板、 背光模块以及驱动液晶面板和背光模块 的驱动模块， 其中液晶面板包括对盒设置的彩色滤光片基板 （即 CF基板） 和阵 列基板 （即 Army基板） 以及夹设于二者之间的液晶。 在现有的大尺寸液晶面板 中， 较多采用负型 VA (Vertically Aligned) 液晶， 然而负型 VA液晶存在较多的 缺陷， 尤其是需要呈现较大的视角吋， 采用负型 VA型液晶的液晶面板在被大视 角观看吋会出现色偏现象。
[0004] 为了解决上述缺陷， 在采用负型 VA型液晶的液晶面板中往往将各子像素再分 为 Main/Sub次像素， 并向 Main/Sub次像素提供不同的像素电压。 但是， 这样的像 素设计往往需要再增加金属走线和薄膜晶体管 （TFT) 来驱动 Main/Sub次像素， 从而造成幵口率的牺牲， 使液晶面板的透光率下降， 为了维持原有的透光率， 就需要提升背光模块出射的光线亮度， 从而直接提升背光模块的成本。
技术问题
[0005] 为了解决上述问题， 本发明提供了一种解决低色偏的同吋又不影响幵口率的液 晶显示器及其驱动方法。
问题的解决方案
技术解决方案
[0006] 本发明提供了一种液晶显示器， 其包括： 液晶面板， 包括阵列排布的多个液晶 像素且被设置为在相邻两帧中显示同一画面； 驱动模块， 用于在相邻两帧中分 别向每个液晶像素提供高低不同的同极性像素电压， 以使每个液晶像素的液晶 分子偏转， 其中在相邻两帧的每一帧中， 每个液晶像素的像素电压的高低都与 所述液晶像素沿第一方向、 第二方向、 第三方向、 第四方向间隔一像素的液晶 像素的像素电压高低不同。
[0007] 进一步地， 所述液晶显示器还包括背光模块， 所述液晶面板被划分为 MxN个矩 形面板分区， 所述背光模块被划分为 MxN个矩形背光分区， l≤i≤M， l≤j≤N， 第 i行第 j列的矩形面板分区与第 i行第 j列的矩形背光分区相对对应； 在相邻两帧的 每一帧中， 在每个矩形面板分区中的每个液晶像素的液晶分子偏转之后， 所述 驱动模块还用于驱动所有的矩形背光分区同吋出射光线； 或者在相邻两帧的每 一帧中， 在第 i行第 j列的矩形面板分区中的每个液晶像素的液晶分子偏转之后， 所述驱动模块还用于驱动第 i行第 j列的矩形背光分区出射光线， 直至驱动所有的 矩形背光分区出射光线。
[0008] 进一步地， 第 i行第 j列的矩形面板分区中所有液晶像素的像素电压之和与第 i行 第 j列的矩形背光分区的亮度满足下面的式子 1，
[0009] [式子 1] L i xY i = L ϋ_2χν ϋ_2
[0010] 其中， L iU表示相邻两帧的前一帧中第 i行第 j列的矩形背光分区的亮度， ν — ,表 示相邻两帧的前一帧中第 i行第 j列的矩形面板分区中所有液晶像素的像素电压之 和； L ij—2表示相邻两帧的后一帧中第 i行第 j列的矩形背光分区的亮度， ν — 2表示 相邻两帧的后一帧中第 i行第 j列的矩形面板分区所有液晶像素的像素电压之和。
[0011] 进一步地， 第 i行第 j列的矩形面板分区中所有液晶像素的像素电压之和与第 i行 第 j列的矩形背光分区的亮度满足下面的式子 2，
[0012] [式子 2] L i xV L ;j_2xV ;j_2=2xL ;jxV ;j
[0013] 其中， L ij表示当所述液晶显示器被设置为仅在一帧中显示所述画面吋第 i行第 j 列的矩形背光分区的亮度， V 表示当所述液晶显示器被设置为仅在一帧中显示 所述画面吋矩形面板分区中所有液晶像素的像素电压之和， L ^表示相邻两帧的 前一帧中第 i行第 j列的矩形背光分区的亮度， V iU表示相邻两帧的前一帧中第 i行 第 j列的矩形面板分区中所有液晶像素的像素电压之和； L 2表示相邻两帧的后 一帧中第 i行第 j列的矩形背光分区的亮度， V 2表示相邻两帧的后一帧中第 i行 第 j列的矩形面板分区中所有液晶像素的像素电压之和。
[0014] 本发明还提供了一种液晶显示器的驱动方法， 所述液晶显示器包括液晶面板、 驱动模块， 所述液晶面板包括阵列排布的多个液晶像素， 并且所述液晶面板被 设置为在相邻两帧中显示同一幅画面；
[0015] 其中所述液晶显示器的驱动方法包括：
[0016] 在相邻两帧的前一帧中， 所述驱动模块向每个液晶像素提供像素电压， 以使每 个液晶像素的所有液晶分子偏转；
[0017] 在相邻两帧的后一帧中， 所述驱动模块向每个液晶像素提供像素电压， 以使每 个液晶像素的所有液晶分子偏转；
[0018] 其中， 每个液晶像素的像素电压的高低都与所述液晶像素沿第一方向、 第二方 向、 第三方向、 第四方向相邻的液晶像素的像素电压的高低不同， 在所述前一 帧和所述后一帧中同一个液晶像素的像素电压极性相同且高低不同。
[0019] 进一步地， 所述液晶显示器还包括背光模块， 所述液晶面板被划分为 MxN个矩 形面板分区， 所述背光模块被划分为 MxN个矩形背光分区， l≤i≤M， l≤j≤N， 第 i行第 j列的矩形面板分区与第 i行第 j列的矩形背光分区相对对应；
[0020] 其中所述液晶显示器的驱动方法还包括：
[0021] 在相邻两帧的前一帧中， 在每个矩形面板分区中的每个液晶像素的液晶分子偏 转之后， 所述驱动模块驱动所有的矩形背光分区同吋出射光线；
[0022] 在相邻两帧的后一帧中， 在每个矩形面板分区中的每个液晶像素的液晶分子偏 转之后， 所述驱动模块驱动所有的矩形背光分区同吋出射光线；
[0023] 或者所述液晶显示器的驱动方法还包括：
[0024] 在相邻两帧的前一帧中， 在第 i行第 j列的矩形面板分区中的每个液晶像素的液 晶分子偏转之后， 所述驱动模块驱动第 i行第 j列的矩形背光分区出射光线， 直至 驱动所有的矩形背光分区出射光线。
[0025] 在相邻两帧的后一帧中， 在第 i行第 j列的矩形面板分区中的每个液晶像素的液 晶分子偏转之后， 所述驱动模块驱动第 i行第 j列的矩形背光分区出射光线， 直至 驱动所有的矩形背光分区出射光线。
[0026] 进一步地， 在上述的液晶显示器的驱动方法， 第 i行第 j列的矩形面板分区中所 有液晶像素的像素电压之和与第 i行第 j列的矩形背光分区的亮度满足下面的式子
1和 /或式子 2，
[0027] [式子 1] L i xY i = L ϋ_2χν ϋ_2
[0028] [式子 2] L ^xV i + L ;j_2xV ;j_2=2xL ;jxV ;j
[0029] 其中， L iU表示相邻两帧的前一帧中第 i行第 j列的矩形背光分区的亮度， ν — ,表 示相邻两帧的前一帧中第 i行第 j列的矩形面板分区中所有液晶像素的像素电压之 和； 表示相邻两帧的后一帧中第 i行第 j列的矩形背光分区的亮度， ν — 2表示 相邻两帧的后一帧中第 i行第 j列的矩形面板分区中所有液晶像素的像素电压之和 ， L 表示当所述液晶显示器被设置为仅在一帧中显示所述画面吋第 i行第 j列的矩 形背光分区的亮度， V 表示当所述液晶显示器被设置为仅在一帧中显示所述画 面吋矩形面板分区中所有液晶像素的像素电压之和。
[0030] 本发明还提供了一种液晶显示器， 其包括： 液晶面板， 包括阵列排布的多个液 晶像素且被设置为在相邻两帧中显示同一画面； 驱动模块， 用于在相邻两帧中 分别向每个液晶像素提供高低不同的同极性像素电压， 以使每个液晶像素的液 晶分子偏转， 其中在相邻两帧的每一帧中， 每个液晶像素的像素电压与所述液 晶像素沿第一方向、 第二方向、 第三方向、 第四方向间隔复数个像素距离之的 像素区间的各液晶像素的像素电压以一关联关系关联。
[0031] 进一步地， 所述关联关系为每个液晶像素的像素电压的高低都与所述液晶像素 沿第一方向、 第二方向、 第三方向、 第四方向间隔复数个像素距离之的像素区 间的各液晶像素的像素电压高低不同。
[0032] 进一步地， 所述关联关系为每个液晶像素的像素电压的高低都与其上方间隔一 像素的液晶像素的像素电压高低不同。
[0033] 进一步地， 所述液晶显示器还包括背光模块， 所述液晶面板被划分为 MxN个矩 形面板分区， 所述背光模块被划分为 MxN个矩形背光分区， l≤i≤M， l≤j≤N， 第 i行第 j列的矩形面板分区与第 i行第 j列的矩形背光分区相对对应；
[0034] 在相邻两帧的每一帧中， 在每个矩形面板分区中的每个液晶像素的液晶分子偏 转之后， 所述驱动模块还用于驱动所有的矩形背光分区同吋出射光线。
[0035] 进一步地， 所述液晶面板被划分为 MxN个矩形面板分区， 所述背光模块被划分 为 MxN个矩形背光分区， l≤i≤M， l≤j≤N， 第 i行第 j列的矩形面板分区与第 i行第 j列的矩形背光分区相对对应；
[0036] 在相邻两帧的每一帧中， 在第 i行第 j列的矩形面板分区中的每个液晶像素的液 晶分子偏转之后， 所述驱动模块还用于驱动第 i行第 j列的矩形背光分区出射光线
， 直至驱动所有的矩形背光分区出射光线。
[0037] 进一步地， 第 i行第 j列的矩形面板分区中所有液晶像素的像素电压之和与第 i行 第 j列的矩形背光分区的亮度满足下面的式子 1，
[0038] [式子 1] L i xY i = L ϋ_2χν ϋ_2
[0039] 其中， L iU表示相邻两帧的前一帧中第 i行第 j列的矩形背光分区的亮度， ν— ,表 示相邻两帧的前一帧中第 i行第 j列的矩形面板分区中所有液晶像素的像素电压之 和； L ij—2表示相邻两帧的后一帧中第 i行第 j列的矩形背光分区的亮度， ν— 2表示 相邻两帧的后一帧中第 i行第 j列的矩形面板分区所有液晶像素的像素电压之和。
[0040] 更进一步而言， 其中， 第 i行第 j列的矩形面板分区中所有液晶像素的像素电压 之和与第 i行第 j列的矩形背光分区的亮度满足下面的式子 2，
[0041] [式子 2] L i xY i + L ϋ_2χν ¾_2=2xL ^xV ,
[0042] 其中， L 表示当所述液晶显示器被设置为仅在一帧中显示所述画面吋第 i行第 j 列的矩形背光分区的亮度， V 表示当所述液晶显示器被设置为仅在一帧中显示 所述画面吋矩形面板分区中所有液晶像素的像素电压之和， L ^表示相邻两帧的 前一帧中第 i行第 j列的矩形背光分区的亮度， V iU表示相邻两帧的前一帧中第 i行 第 j列的矩形面板分区中所有液晶像素的像素电压之和； L 2表示相邻两帧的后 一帧中第 i行第 j列的矩形背光分区的亮度， V 2表示相邻两帧的后一帧中第 i行 第 j列的矩形面板分区中所有液晶像素的像素电压之和。
[0043] 还需要特别说明的是， 其中， 第 i行第 j列的矩形面板分区中所有液晶像素的像 素电压之和与第 i行第 j列的矩形背光分区的亮度满足下面的式子 2，
[0044] [式子 2] L iUxV iU+ L ;j_2xV ;j_2=2xL ;jxV ;j
[0045] 其中， L 表示当所述液晶显示器被设置为仅在一帧中显示所述画面吋第 i行第 j 列的矩形背光分区的亮度， V 表示当所述液晶显示器被设置为仅在一帧中显示 所述画面吋矩形面板分区中所有液晶像素的像素电压之和。 发明的有益效果
有益效果
[0046] 通过在相邻两帧中分别向每个液晶像素提供高低不同的同极性像素电压， 且在 相邻两帧的每一帧中， 每个液晶像素的像素电压的高低都与所述液晶像素沿第 一方向、 第二方向、 第三方向、 第四方向相邻的液晶像素的像素电压的高低不 同， 从而使液晶面板在相邻两帧中显示同一画面的同吋， 实现低色偏视角补偿 效果， 即在大视角方向观看液晶面板吋， 不会出现色偏现象， 而且液晶像素未 再做 Main/Sub次像素， 就不需要再增加金属走线和薄膜晶体管来驱动 Main/Sub次 像素， 从而不会减小幵口率。 进一步地， 在相邻的前后两帧中， 使各矩形背光 分区的亮度与对应的矩形面板分区中所有液晶像素的像素电压之和的乘积相等 ， 从而使各矩形面板分区在相邻两帧中的显示亮度相同， 从而能够消除闪烁现 象。 更进一步地， 使液晶面板的各矩形面板分区在相邻两帧中显示的同一画面 的亮度之和为未做低色偏视角补偿效果的液晶面板在一帧中显示所述画面的亮 度的两倍， 从而使液晶面板显示的画面的亮度与未做低色偏视角补偿效果的液 晶面板显示的画面的亮度相同。
对附图的简要说明
附图说明
[0047] 通过结合附图进行的以下描述， 本发明的实施例的上述和其它方面、 特点和优 点将变得更加清楚， 附图中：
[0048] 图 1是根据本发明的实施例的液晶显示器的结构示意图。
[0049] 图 2是根据本发明的另一实施例的液晶显示器的结构示意图。
[0050] 图 3是图 1所示的液晶显示器的驱动方法的流程图。
[0051] 图 4是图 2所示的液晶显示器的驱动方法的流程图。
[0052] 图 5是图 2所示的液晶显示器的另一种驱动方法的流程图。
[0053] 本发明的实施方式
[0054] 以下， 将参照附图来详细描述本发明的实施例。 然而， 可以以许多不同的形式 来实施本发明， 并且本发明不应该被解释为限制于这里阐述的具体实施例。 相 反， 提供这些实施例是为了解释本发明的原理及其实际应用， 从而使本领域的 其他技术人员能够理解本发明各种实施例和适合于特定预期应用的各种修改。
[0055] 图 1是根据本发明的实施例的液晶显示器的结构示意图。
[0056] 参照图 1， 根据本发明的实施例的液晶显示器包括： 液晶面板 10、 驱动模块 20 、 背光模块 30。
[0057] 液晶面板 10可以包括对盒设置的彩色滤光片基板 （即 CF基板） 和阵列基板 （即 Army基板） 以及夹设于二者之间的负型 VA液晶。 也就是说， 液晶面板 10为具有 VA显示模式的液晶面板。 此外， 彩色滤光片基板和阵列基板的具体结构以及如 何由彩色滤光片基板、 阵列基板和负型 VA液晶构成液晶面板 10在此不再赘述。
[0058] 在组装形成液晶显示器的过程中， 将液晶面板 10和背光模块 30面对设置， 再借 由外框等固定结构将二者结合固定。 驱动模块 20驱动背光模块 30出射光线， 以 提供给液晶面板 10所用。 在图 1中， 为了便于实施例的描述， 未示出液晶面板 10 和背光模块 30的组装状态。
[0059] 液晶面板 10包括 AxB个液晶像素 （即子像素） P„、 P 12、 ......、 P AB。 液晶像 素 P ab (其中 l≤a≤A， l≤b≤B， 且 a和 b均为整数） 可以是红色液晶像素、 绿色液 晶像素或蓝色液晶像素， 但本发明并不限制于此。 而且这些液晶像素 P„、 P 12、 ......、 P AB中必须包括至少一个红色液晶像素、 至少一个绿色液晶像素和至少一 个蓝色液晶像素。 作为一种优选方案， 在列方向上均为同一颜色的液晶像素， 在行方向上以红色液晶像素、 绿色液晶像素和蓝色液晶像素为组顺序排列。
[0060] 在本实施例的液晶面板 10中， 不再将各个液晶像素再分为 Main/Sub次像素。 为 了使大视角观看液晶面板 10吋不会出现色偏现象， 本实施例采取的技术方案为 ： 将液晶面板 10设置为在相邻两帧中显示同一画面； 驱动模块 20在相邻两帧中 分别向每个液晶像素提供高低不同的同极性像素电压， 以使每个液晶像素的液 晶分子偏转； 其中在相邻两帧的每一帧中， 每个液晶像素的像素电压的高低都 与所述液晶像素沿第一方向、 第二方向、 第三方向、 第四方向相邻的液晶像素 的像素电压的高低不同。
[0061] 也就是说， 液晶面板 10的帧刷新频率被提高了一倍， 例如液晶面板 10的帧刷新 频率为 120HZ, 具体的帧刷新频率的提高方法可参照现有技术的相关内容， 在此 不再赘述。 [0062] 接下来对上述的本实施例采取的技术方案进行进一步阐述。
[0063] 继续参照图 1， 在相邻两帧的前一帧中， 驱动模块 20向液晶像素 P ab提供高像素 电压 （或低像素电压） ， 以使液晶像素 P ab的液晶分子偏转， 而驱动模块 20向液 晶像素 P (a 1)b、 液晶像素 P a υ、 液晶像素 P a(b+1)以及液晶像素 P (a+1)b均提供了低像 素电压 （或高像素电压） 。
[0064] 在相邻两帧的后一帧中， 驱动模块 20向液晶像素 P ab提供低像素电压 （或高像 素电压） ， 以使液晶像素 P ab的液晶分子偏转， 而驱动模块 20向液晶像素 P (a— 1)b、 液晶像素 Ρ 、 液晶像素 P a(b+1)以及液晶像素 P (a+1)b均提供了高像素电压 （或低像 素电压） 。
[0065] 也就是说， 每个液晶像素的像素电压的高低都与所述液晶像素沿第一方向、 第 二方向、 第三方向、 第四方向相邻的液晶像素的像素电压的高低不同。 并且每 个液晶像素在相邻的前后两帧中被提供的像素电压的高低不同。 需要说明的是 ， 所述高像素电压和所述低像素电压的极性相同， 这样液晶面板 10在相邻的前 后两帧中能够显示同一画面。
[0066] 此外， 所述高像素电压和所述低像素电压为事先已经根据输入的 RGB信号且按 照需要补偿的视角效果所决定， 一般是以査找表 （LUT) 的方式记录在驱动模块 10中。 例如， 以 8 bit的驱动信号为例， 输入的 RGB信号中的每一对应 256对高低 像素电压， 这样共有 3x256个高像素电压和 3x256个低像素电压。
[0067] 综上， 通过在相邻两帧中分别向每个液晶像素提供高低不同的同极性像素电压 ， 且在相邻两帧的每一帧中， 每个液晶像素的像素电压的高低都与所述液晶像 素沿第一方向、 第二方向、 第三方向、 第四方向相邻的液晶像素的像素电压的 高低不同， 从而使液晶面板 10在相邻两帧中显示同一画面的同吋， 实现低色偏 视角补偿效果， 即在大视角方向观看液晶面板 10吋， 不会出现色偏现象。
[0068] 为了克服相邻两帧中液晶面板 10的各液晶像素显示的亮度不平均而造成的闪烁 不适现象， 进一步地， 对背光模块 30进行亮度区域的划分， 通过动态调节各亮 度区域的亮度， 来使液晶面板 10的各液晶像素显示亮度均匀， 从而消除闪烁现 象， 具体请参照图 2所示的液晶显示器。 图 2是根据本发明的另一实施例的液晶 显示器的结构示意图。 以下仅对图 2所示的实施例与图 1所示的实施例的不同之 处进行说明。
[0069] 参照图 2， 与图 1所示的实施例不同的是， 将液晶面板 10划分为 MxN个矩形面板 分区 10„、 10 12、 ... ...、 10 且将背光模块 30划分为 MxN个矩形背光分区 30„
、 30 12、 ... ...、 30 MN , 其中矩形面板分区 10 与矩形背光分区 30 相对对应， l≤i
≤M， l≤j≤N， 且 i和 j均为整数。 这里， 需要说明的是， 矩形面板分区 10 中包括 的液晶像素的数量相同， 但作为其他实施方式， 也可以不同。
[0070] 这样， 矩形面板分区 10 中所有液晶像素的像素电压之和与矩形背光分区 30 的 亮度满足下面的式子 1。
[0071] [式子 1] L iUxV i = L ϋ_2χν ϋ_2
[0072] 其中， L iU表示相邻两帧的前一帧中矩形面板分区 10 的亮度， ν — ,表示相邻两 帧的前一帧中矩形面板分区 10 ij中所有液晶像素的像素电压之和； L 2表示相邻 两帧的后一帧中矩形背光分区 30 的亮度， V 2表示相邻两帧的后一帧中矩形背 光分区 30 中所有液晶像素的像素电压之和。
[0073] 这里， 由于液晶像素的像素电压与液晶像素的光线穿透率成正比， 液晶像素的 光线穿透率与背光亮度的乘积即为液晶像素的显示亮度， 也就是说液晶像素的 像素电压与背光亮度的乘积能够表示液晶像素的显示亮度。 当相邻的前后两帧 中矩形背光分区 30 的亮度与矩形面板分区 10 中所有液晶像素的像素电压之和 的乘积相等吋， 矩形面板分区 10 在相邻前后两帧中的显示亮度就相同， 从而能 够消除闪烁现象。
[0074] 在液晶面板 10和背光模块 30均被划分区域后， 关于背光模块 30向液晶面板 10提 供显示光线的方式可以包括以下两种方式， 当然， 以下描述的两种方式仅为示 例， 本发明还可以包括其他合适的方式。
[0075] 背光模块 30向液晶面板 10提供显示光线的第一种方式为： 在相邻两帧的每一帧 中， 在所有的矩形面板分区 10„、 10 12、 ... ...、 10 MN中的所有液晶像素的液晶分 子偏转之后， 驱动模块 20驱动所有的矩形背光分区 30„、 30 12、 ... ...、 30 MN同吋 出射光线。 当然， 应当理解的是， 各个矩形背光分区的亮度可以不同， 也可以 相同， 其各自由驱动模块 20负责调控。
[0076] 背光模块 30向液晶面板 10提供显示光线的第二种方式为： 在相邻两帧的每一帧 中， 在矩形面板分区 10 中的所有液晶像素的液晶分子偏转之后， 驱动模块 20驱 动矩形背光分区 30 出射光线， 直至驱动所有的矩形背光分区 30„、 30 12、 ......
、 30 MN出射光线。 也就是说， 驱动模块 20分吋驱动各个矩形背光分区。 当然， 也应当理解的是， 各个矩形背光分区的亮度可以不同， 也可以相同， 其各自由 驱动模块 20负责调控。
[0077] 为了使液晶面板 10显示的画面的亮度与未做低色偏视角补偿效果的液晶面板显 示的画面的亮度相同， 进一步地， 使液晶面板 10的各矩形面板分区在相邻两帧 中显示的同一画面的亮度之和为未做低色偏视角补偿效果的液晶面板在一帧中 显示所述画面的亮度的两倍。 具体技术方案如下。
[0078] 矩形面板分区 10 中所有液晶像素的像素电压之和与矩形背光分区 30 的亮度满 足下面的式子 2。
[0079] [式子 2] L i xY i + L ¾_2xV ¾_2=2xL ^xV ,
[0080] 其中， L 表示当未做低色偏视角补偿的液晶面板被设置为仅在一帧中显示所述 画面吋相应矩形背光分区的亮度， V 表示当未做低色偏视角补偿的液晶面板被 设置为仅在一帧中显示所述画面吋相应矩形面板分区中所有液晶像素的像素电 压之和。 需要说明的是， 未做低色偏视角补偿的液晶面板在不同帧中显示的画 面不相同。
[0081] 以下对液晶显示器的驱动方法进行说明。 图 3是图 1所示的液晶显示器的驱动方 法的流程图。
[0082] 参照图 1和图 3， 根据本发明的实施例的液晶显示器的驱动方法包括：
[0083] S310: 在相邻两帧的前一帧中， 驱动模块 20向液晶面板 10的每个液晶像素提供 像素电压， 以使每个液晶像素的所有液晶分子偏转；
[0084] S320: 在相邻两帧的后一帧中， 驱动模块 20向液晶面板 10的每个液晶像素提供 像素电压， 以使每个液晶像素的所有液晶分子偏转；
[0085] 其中， 在前一帧和后一帧中， 每个液晶像素的像素电压的高低都与所述液晶像 素沿第一方向、 第二方向、 第三方向、 第四方向相邻的液晶像素的像素电压的 高低不同， 且同一个液晶像素的像素电压极性相同且高低不同。
[0086] 图 4是图 2所示的液晶显示器的驱动方法的流程图。 [0087] 参照图 2和图 4， 根据本发明的实施例的液晶显示器的驱动方法包括：
[0088] S410: 在相邻两帧的前一帧中， 驱动模块 20向液晶面板 10的每个液晶像素提供 像素电压， 以使每个液晶像素的所有液晶分子偏转；
[0089] S420: 在相邻两帧的前一帧中， 在液晶面板 10的矩形面板分区 10„、 10 12、 ...
…、 10 中的液晶像素的液晶分子偏转之后， 驱动模块 20驱动所有的矩形背光 分区 30„、 30 12、 ......、 30 同吋出射光线；
[0090] S430: 在相邻两帧的后一帧中， 驱动模块 20向液晶面板 10的每个液晶像素提供 像素电压， 以使每个液晶像素的所有液晶分子偏转；
[0091] S440: 在相邻两帧的后一帧中， 在液晶面板 10的所有矩形面板分区 10„、 10 12
、 ......、 10 中的液晶像素的液晶分子偏转之后， 驱动模块 20驱动所有的矩形 背光分区 30„、 30 12、 ......、 30 同吋出射光线；
[0092] 其中， 在前一帧和后一帧中， 每个液晶像素的像素电压的高低都与所述液晶像 素沿第一方向、 第二方向、 第三方向、 第四方向间隔一像素的液晶像素的像素 电压高低不同， 且同一个液晶像素的像素电压极性相同且高低不同；
[0093] 可选的， 在前一帧和后一帧中， 每个液晶像素的像素电压的高低都与所述液晶 像素沿第一方向、 第二方向、 第三方向、 第四方向间隔复数个像素距离之的像 素区间的各液晶像素的像素电压高低不同， 且同一个液晶像素的像素电压极性 相同且高低不同；
[0094] 可选的， 在前一帧和后一帧中， 每个液晶像素的像素电压的高低都与其上方间 隔一像素的液晶像素的像素电压高低不同， 且同一个液晶像素的像素电压极性 相同且高低不同。
[0095] 图 5是图 2所示的液晶显示器的另一种驱动方法的流程图。
[0096] 参照图 2和图 4， 根据本发明的实施例的液晶显示器的驱动方法包括：
[0097] S510: 在相邻两帧的前一帧中， 驱动模块 20向液晶面板 10的每个液晶像素提供 像素电压， 以使每个液晶像素的所有液晶分子偏转；
[0098] S520: 在相邻两帧的前一帧中， 在液晶面板 10的矩形面板分区 10 中的所有液 晶像素的液晶分子偏转之后， 驱动模块 20驱动矩形背光分区 30 出射光线， 直至 驱动所有的矩形背光分区 30„、 30 12、 ......、 30 MN出射光线； [0099] S530: 在相邻两帧的后一帧中， 驱动模块 20向液晶面板 10的每个液晶像素提供 像素电压， 以使每个液晶像素的所有液晶分子偏转；
[0100] S540: 在相邻两帧的后一帧中， 在液晶面板 10的矩形面板分区 10 中的所有液 晶像素的液晶分子偏转之后， 驱动模块 20驱动矩形背光分区 30 出射光线， 直至 驱动所有的矩形背光分区 30„、 30 12、 ......、 30 MN出射光线；
[0101] 其中， 在前一帧和后一帧中， 每个液晶像素的像素电压的高低都与所述液晶像 素沿第一方向、 第二方向、 第三方向、 第四方向间隔一像素的液晶像素的像素 电压高低不同， 且同一个液晶像素的像素电压极性相同且高低不同；
[0102] 可选的， 在前一帧和后一帧中， 每个液晶像素的像素电压的高低都与所述液晶 像素沿第一方向、 第二方向、 第三方向、 第四方向间隔复数个像素距离之的像 素区间的各液晶像素的像素电压高低不同， 且同一个液晶像素的像素电压极性 相同且高低不同；
[0103] 可选的， 在前一帧和后一帧中， 每个液晶像素的像素电压的高低都与其上方间 隔一像素的液晶像素的像素电压高低不同， 且同一个液晶像素的像素电压极性 相同且高低不同。
[0104] 此外， 进一步地， 在图 4和图 5所示的驱动方法中， 矩形面板分区 10 中所有液 晶像素的像素电压之和与矩形背光分区 30 的亮度满足上面的式子 1和 /或式子 2。
[0105] 综上所述， 通过在相邻两帧中分别向每个液晶像素提供高低不同的同极性像素 电压， 且在相邻两帧的每一帧中， 每个液晶像素的像素电压的高低都与所述液 晶像素沿第一方向、 第二方向、 第三方向、 第四方向相邻的液晶像素的像素电 压的高低不同， 从而使液晶面板在相邻两帧中显示同一画面的同吋， 实现低色 偏视角补偿效果， 即在大视角方向观看液晶面板吋， 不会出现色偏现象， 而且 液晶像素可未再做 Main/Sub次像素， 就不需要再增加金属走线和薄膜晶体管来驱 动 Main/Sub次像素， 从而不会减小幵口率。 进一步地， 在相邻的前后两帧中， 使 各矩形背光分区的亮度与对应的矩形面板分区中所有液晶像素的像素电压之和 的乘积相等， 从而使各矩形面板分区在相邻两帧中的显示亮度相同， 从而能够 消除闪烁现象。 更进一步地， 使液晶面板的各矩形面板分区在相邻两帧中显示 的同一画面的亮度之和为未做低色偏视角补偿效果的液晶面板在一帧中显示所 述画面的亮度的两倍， 从而使液晶面板显示的画面的亮度与未做低色偏视角补 偿效果的液晶面板显示的画面的亮度相同。
虽然已经参照特定实施例示出并描述了本发明， 但是本领域的技术人员将理解 ： 在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下， 可在 此进行形式和细节上的各种变化。

Claims

权利要求书
[权利要求 1] 一种液晶显示器， 其中， 包括：
液晶面板， 包括多个液晶像素且被设置为在相邻两帧中显示同一画面 驱动模块， 用于在相邻两帧中分别向每个液晶像素提供高低不同的同 极性像素电压， 以使每个液晶像素的液晶分子偏转；
其中， 在相邻两帧的每一帧中， 每个液晶像素的像素电压的高低都与 所述液晶像素沿第一方向、 第二方向、 第三方向、 第四方向间隔一像 素的液晶像素的像素电压高低不同。
[权利要求 2] 根据权利要求 1所述的液晶显示器， 其中， 所述液晶显示器还包括背 光模块， 所述液晶面板被划分为 MxN个矩形面板分区， 所述背光模 块被划分为 MxN个矩形背光分区， l≤i≤M， l≤j≤N， 第 i行第 j列的矩 形面板分区与第 i行第 j列的矩形背光分区相对对应； 在相邻两帧的每一帧中， 在每个矩形面板分区中的每个液晶像素的液 晶分子偏转之后， 所述驱动模块还用于驱动所有的矩形背光分区同吋 出射光线。
[权利要求 3] 根据权利要求 1所述的液晶显示器， 其中， 所述液晶面板被划分为 Mx
N个矩形面板分区， 所述背光模块被划分为 MxN个矩形背光分区， 1≤ i≤M， l≤j≤N， 第 i行第 j列的矩形面板分区与第 i行第 j列的矩形背光分 区相对对应；
在相邻两帧的每一帧中， 在第 i行第 j列的矩形面板分区中的每个液晶 像素的液晶分子偏转之后， 所述驱动模块还用于驱动第 i行第 j列的矩 形背光分区出射光线， 直至驱动所有的矩形背光分区出射光线。
[权利要求 4] 根据权利要求 2或 3所述的液晶显示器， 其中， 第 i行第 j列的矩形面板 分区中所有液晶像素的像素电压之和与第 i行第 j列的矩形背光分区的 亮度满足下面的式子 1，
[式子 1] L yjxV y_i= L y_2xV y_2
其中， L iU表示相邻两帧的前一帧中第 i行第 j列的矩形背光分区的亮 度， V iU表示相邻两帧的前一帧中第 i行第 j列的矩形面板分区中所有 液晶像素的像素电压之和； L 2表示相邻两帧的后一帧中第 i行第 j列 的矩形背光分区的亮度， V 2表示相邻两帧的后一帧中第 i行第 j列的 矩形面板分区中所有液晶像素的像素电压之和。
[权利要求 5] 根据权利要求 2或 3所述的液晶显示器， 其中， 第 i行第 j列的矩形面板 分区中所有液晶像素的像素电压之和与第 i行第 j列的矩形背光分区的 亮度满足下面的式子 2，
[式子 2] L iUxV iLi+ L y_2xV
Figure imgf000017_0001
;jxV ;j
其中， L ij表示当所述液晶显示器被设置为仅在一帧中显示所述画面 吋第 i行第 j列的矩形背光分区的亮度， V 表示当所述液晶显示器被设 置为仅在一帧中显示所述画面吋矩形面板分区中所有液晶像素的像素 电压之和， L iU表示相邻两帧的前一帧中第 i行第 j列的矩形背光分区 的亮度， V iU表示相邻两帧的前一帧中第 i行第 j列的矩形面板分区中 所有液晶像素的像素电压之和；
表示相邻两帧的后一帧中第 i行第 j列的矩形背光分区的亮度， V 2表 示相邻两帧的后一帧中第 i行第 j列的矩形面板分区中所有液晶像素的 像素电压之和。
[权利要求 6] 根据权利要求 4所述的液晶显示器， 其中， 第 i行第 j列的矩形面板分区 中所有液晶像素的像素电压之和与第 i行第 j列的矩形背光分区的亮度 满足下面的式子 2，
[式子 2] L i xY iU+ L ;j_2xV
Figure imgf000017_0002
;jxV ;j
其中， L ij表示当所述液晶显示器被设置为仅在一帧中显示所述画面 吋第 i行第 j列的矩形背光分区的亮度， V 表示当所述液晶显示器被设 置为仅在一帧中显示所述画面吋矩形面板分区中所有液晶像素的像素 电压之和。
[权利要求 7] —种液晶显示器的驱动方法， 其中， 包括：
在相邻两帧的前一帧中， 驱动模块向液晶面板的每个液晶像素提供像 素电压， 以使每个液晶像素的所有液晶分子偏转； 所述液晶面板被设 置为在相邻两帧中显示同一幅画面；
在相邻两帧的后一帧中， 所述驱动模块向液晶面板的每个液晶像素提 供像素电压， 以使每个液晶像素的所有液晶分子偏转；
其中， 每个液晶像素的像素电压的高低都与所述液晶像素沿第一方向 、 第二方向、 第三方向、 第四方向间隔一像素的液晶像素的像素电压 高低不同， 在所述前一帧和所述后一帧中同一个液晶像素的像素电压 极性相同且高低不同。
[权利要求 8] 根据权利要求 7所述的液晶显示器的驱动方法， 其中， 所述液晶显示 器还包括背光模块， 所述液晶面板被划分为 MxN个矩形面板分区， 所述背光模块被划分为 MxN个矩形背光分区， l≤i≤M， l≤j≤N， 第 i 行第 j列的矩形面板分区与第 i行第 j列的矩形背光分区相对对应； 其中所述液晶显示器的驱动方法还包括：
在相邻两帧的前一帧中， 在每个矩形面板分区中的每个液晶像素的液 晶分子偏转之后， 所述驱动模块驱动所有的矩形背光分区同吋出射光 线；
在相邻两帧的后一帧中， 在每个矩形面板分区中的每个液晶像素的液 晶分子偏转之后， 所述驱动模块驱动所有的矩形背光分区同吋出射光 线。
[权利要求 9] 根据权利要求 7所述的液晶显示器的驱动方法， 其中， 所述液晶面板 被划分为 MxN个矩形面板分区， 所述背光模块被划分为 MxN个矩形 背光分区， l≤i≤M， l≤j≤N， 第 i行第 j列的矩形面板分区与第 i行第 j列 的矩形背光分区相对对应；
其中所述液晶显示器的驱动方法还包括：
在相邻两帧的前一帧中， 在第 i行第 j列的矩形面板分区中的每个液晶 像素的液晶分子偏转之后， 所述驱动模块驱动第 i行第 j列的矩形背光 分区出射光线， 直至驱动所有的矩形背光分区出射光线；
在相邻两帧的后一帧中， 在第 i行第 j列的矩形面板分区中的每个液晶 像素的液晶分子偏转之后， 所述驱动模块驱动第 i行第 j列的矩形背光 分区出射光线， 直至驱动所有的矩形背光分区出射光线。
[权利要求 10] 根据权利要求 8或 9所述的液晶显示器的驱动方法， 其中， 第 i行第 j列 的矩形面板分区中所有液晶像素的像素电压之和与第 i行第 j列的矩形 背光分区的亮度满足下面的式子 1和 /或式子 2，
[式子 1] L yjxV y_i= L y_2xV y_2
[式子 2] L iUxV iLi+ L y_2xV
Figure imgf000019_0001
;jxV ;j
其中， L iU表示相邻两帧的前一帧中第 i行第 j列的矩形背光分区的亮 度， V iU表示相邻两帧的前一帧中第 i行第 j列的矩形面板分区中所有 液晶像素的像素电压之和； L 2表示相邻两帧的后一帧中第 i行第 j列 的矩形背光分区的亮度， V 2表示相邻两帧的后一帧中第 i行第 j列的 矩形面板分区中所有液晶像素的像素电压之和， L 表示当所述液晶 显示器被设置为仅在一帧中显示所述画面吋第 i行第 j列的矩形背光分 区的亮度， V 表示当所述液晶显示器被设置为仅在一帧中显示所述 画面吋矩形面板分区中所有液晶像素的像素电压之和。
[权利要求 11] 一种液晶显示器， 其中， 包括：
液晶面板， 包括多个液晶像素且被设置为在相邻两帧中显示同一画面 驱动模块， 用于在相邻两帧中分别向每个液晶像素提供高低不同的同 极性像素电压， 以使每个液晶像素的液晶分子偏转；
其中， 在相邻两帧的每一帧中， 每个液晶像素的像素电压与所述液晶 像素沿第一方向、 第二方向、 第三方向、 第四方向间隔复数个像素距 离之的像素区间的各液晶像素的像素电压以一关联关系关联。
[权利要求 12] 根据权利要求 11所述的液晶显示器， 其中所述关联关系为每个液晶像 素的像素电压的高低都与所述液晶像素沿第一方向、 第二方向、 第三 方向、 第四方向间隔复数个像素距离之的像素区间的各液晶像素的像 素电压高低不同。
[权利要求 13] 根据权利要求 11所述的液晶显示器， 其中所述关联关系为每个液晶像 素的像素电压的高低都与其上方间隔一像素的液晶像素的像素电压高 低不同。
[权利要求 14] 根据权利要求 11、 12或 13所述的液晶显示器， 其中， 所述液晶显示器 还包括背光模块， 所述液晶面板被划分为 MxN个矩形面板分区， 所 述背光模块被划分为 MxN个矩形背光分区， l≤i≤M， l≤j≤N， 第 i行 第 j列的矩形面板分区与第 i行第 j列的矩形背光分区相对对应； 在相邻两帧的每一帧中， 在每个矩形面板分区中的每个液晶像素的液 晶分子偏转之后， 所述驱动模块还用于驱动所有的矩形背光分区同吋 出射光线。
[权利要求 15] 根据权利要求 11、 12或 13所述的液晶显示器， 其中， 所述液晶面板被 划分为 MxN个矩形面板分区， 所述背光模块被划分为 MxN个矩形背 光分区， l≤i≤M， l≤j≤N， 第 i行第 j列的矩形面板分区与第 i行第 j列的 矩形背光分区相对对应；
在相邻两帧的每一帧中， 在第 i行第 j列的矩形面板分区中的每个液晶 像素的液晶分子偏转之后， 所述驱动模块还用于驱动第 i行第 j列的矩 形背光分区出射光线， 直至驱动所有的矩形背光分区出射光线。
[权利要求 16] 根据权利要求 14所述的液晶显示器， 其中， 第 i行第 j列的矩形面板分 区中所有液晶像素的像素电压之和与第 i行第 j列的矩形背光分区的亮 度满足下面的式子 1，
[式子 1] L i xY i = L ϋ_2χν y_2
其中， L iU表示相邻两帧的前一帧中第 i行第 j列的矩形背光分区的亮 度， V iU表示相邻两帧的前一帧中第 i行第 j列的矩形面板分区中所有 液晶像素的像素电压之和； L 2表示相邻两帧的后一帧中第 i行第 j列 的矩形背光分区的亮度， V 2表示相邻两帧的后一帧中第 i行第 j列的 矩形面板分区中所有液晶像素的像素电压之和。
[权利要求 17] 根据权利要求 15所述的液晶显示器， 其中， 第 i行第 j列的矩形面板分 区中所有液晶像素的像素电压之和与第 i行第 j列的矩形背光分区的亮 度满足下面的式子 1，
[式子 1] L
Figure imgf000020_0001
L y_2xV y_2 其中， L iU表示相邻两帧的前一帧中第 i行第 j列的矩形背光分区的亮 度， V iU表示相邻两帧的前一帧中第 i行第 j列的矩形面板分区中所有 液晶像素的像素电压之和； L 2表示相邻两帧的后一帧中第 i行第 j列 的矩形背光分区的亮度， V 2表示相邻两帧的后一帧中第 i行第 j列的 矩形面板分区中所有液晶像素的像素电压之和。
[权利要求 18] 根据权利要求 14所述的液晶显示器， 其中， 第 i行第 j列的矩形面板分 区中所有液晶像素的像素电压之和与第 i行第 j列的矩形背光分区的亮 度满足下面的式子 2，
[式子 2] L iUxV iLi+ L y_2xV
Figure imgf000021_0001
;jxV ;j
其中， L ij表示当所述液晶显示器被设置为仅在一帧中显示所述画面 吋第 i行第 j列的矩形背光分区的亮度， V 表示当所述液晶显示器被设 置为仅在一帧中显示所述画面吋矩形面板分区中所有液晶像素的像素 电压之和， L iU表示相邻两帧的前一帧中第 i行第 j列的矩形背光分区 的亮度， V iU表示相邻两帧的前一帧中第 i行第 j列的矩形面板分区中 所有液晶像素的像素电压之和；
表示相邻两帧的后一帧中第 i行第 j列的矩形背光分区的亮度， V 2表 示相邻两帧的后一帧中第 i行第 j列的矩形面板分区中所有液晶像素的 像素电压之和。
[权利要求 19] 根据权利要求 15所述的液晶显示器， 其中， 第 i行第 j列的矩形面板分 区中所有液晶像素的像素电压之和与第 i行第 j列的矩形背光分区的亮 度满足下面的式子 2，
[式子 2] L i xY iU+ L ;j_2xV
Figure imgf000021_0002
;jxV ;j
其中， L ij表示当所述液晶显示器被设置为仅在一帧中显示所述画面 吋第 i行第 j列的矩形背光分区的亮度， V 表示当所述液晶显示器被设 置为仅在一帧中显示所述画面吋矩形面板分区中所有液晶像素的像素 电压之和， L iU表示相邻两帧的前一帧中第 i行第 j列的矩形背光分区 的亮度， V iU表示相邻两帧的前一帧中第 i行第 j列的矩形面板分区中 所有液晶像素的像素电压之和； L ij— 2 表示相邻两帧的后一帧中第 i行第 j列的矩形背光分区的亮度， V 2表 示相邻两帧的后一帧中第 i行第 j列的矩形面板分区中所有液晶像素的 像素电压之和。
[权利要求 20] 根据权利要求 16所述的液晶显示器， 其中， 第 i行第 j列的矩形面板分 区中所有液晶像素的像素电压之和与第 i行第 j列的矩形背光分区的亮 度满足下面的式子 2，
[式子 2] L iUxV iLi+ L y_2xV
Figure imgf000022_0001
;jxV ;j
其中， L ij表示当所述液晶显示器被设置为仅在一帧中显示所述画面 吋第 i行第 j列的矩形背光分区的亮度， V 表示当所述液晶显示器被设 置为仅在一帧中显示所述画面吋矩形面板分区中所有液晶像素的像素 电压之和。
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