CN111624824A - Liquid crystal display assembly, liquid crystal display device and display method thereof - Google Patents

Liquid crystal display assembly, liquid crystal display device and display method thereof Download PDF

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Publication number
CN111624824A
CN111624824A CN202010605411.9A CN202010605411A CN111624824A CN 111624824 A CN111624824 A CN 111624824A CN 202010605411 A CN202010605411 A CN 202010605411A CN 111624824 A CN111624824 A CN 111624824A
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liquid crystal
sub
pixel
display
gray scale
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CN111624824B (en
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孙炎
习艳会
史天阔
侯一凡
张小牤
孙伟
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BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • 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 
    • G02F1/13—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  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • 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 
    • G02F1/13—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  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • 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
    • G09G3/3406—Control of illumination source
    • 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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/52—RGB geometrical arrangements

Abstract

The invention relates to the technical field of display, in particular to a liquid crystal display assembly, a liquid crystal display device and a display method thereof. The method is used for solving the problems of low transmittance and low brightness and contrast of the superposed structure for manufacturing the double-layer liquid crystal box in the related art. A liquid crystal display assembly includes a first liquid crystal cell and a second liquid crystal cell; the first liquid crystal cell includes a plurality of repeating units, each repeating unit includes at least one pixel group, each pixel group includes at least one first pixel unit, each first pixel unit includes at least one first sub-pixel group and at least one second sub-pixel group, each first sub-pixel group includes n kinds of color different first sub-pixels, each second sub-pixel group includes at least one second sub-pixel; in each first pixel unit, the number of the second sub-pixel groups is less than or equal to the number of the first sub-pixels; the second liquid crystal cell includes a plurality of second pixel units, each of which corresponds to at least one of the repeating units.

Description

Liquid crystal display assembly, liquid crystal display device and display method thereof
Technical Field
The invention relates to the technical field of display, in particular to a liquid crystal display assembly, a liquid crystal display device and a display method thereof.
Background
The liquid crystal display device is a display device currently used in a large scale, has the advantages of high color gamut, lightness, thinness, fast response time and the like, and has mature technology in the aspects of theoretical research and actual process.
Disclosure of Invention
The invention mainly aims to provide a liquid crystal display assembly, a liquid crystal display device and a display method thereof. The method is used for solving the problems of low transmittance and low brightness and contrast of the superposed structure for manufacturing the double-layer liquid crystal box in the related art.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, an embodiment of the present invention provides a liquid crystal display device, where the liquid crystal display device has a display area and a peripheral area surrounding the display area; the liquid crystal display module includes: a first liquid crystal cell and a second liquid crystal cell which are arranged in a stacked manner; the first liquid crystal cell comprises a plurality of repeating units which are arranged in a matrix form and arranged in the display area, each repeating unit comprises at least one pixel group, each pixel group comprises at least one first pixel unit which is sequentially arranged along a first direction, each first pixel unit comprises a plurality of sub-pixels, the plurality of sub-pixels comprise at least one first sub-pixel group and at least one second sub-pixel group, each first sub-pixel group comprises n first sub-pixels which are different in color and sequentially arranged along the first direction, the number of the first sub-pixels of each color is at least one, each second sub-pixel group comprises at least one second sub-pixel, the first direction is a row direction or a column direction which is arranged in the matrix form, and n is a positive integer which is greater than or equal to 2; in each first pixel unit, the number of the second sub-pixel groups is less than or equal to the number of the first sub-pixels, any two second sub-pixel groups are not continuous, the sum of the number of the first sub-pixels and the number of the second sub-pixel groups is an integral multiple of n, and every n first sub-pixels and every n second sub-pixel groups which are continuously arranged are used as a display unit; the transmittance of light transmitted through any one of the second sub-pixels is greater than the transmittance of light transmitted through each of the first sub-pixels for light of the same brightness, and the shape and the aperture ratio of each of the second sub-pixels are the same as those of one of the first sub-pixels; the second liquid crystal cell comprises a plurality of second pixel units arranged in the display area, and each second pixel unit corresponds to at least one repeating unit.
Optionally, the n first sub-pixels with different colors are primary color sub-pixels emitting light with different colors respectively; the second sub-pixel is a white sub-pixel emitting white light or a yellow sub-pixel emitting yellow light.
Optionally, each repeating unit includes at least two first pixel groups sequentially arranged along a second direction, each first pixel group includes at least one first pixel unit sequentially arranged along the first direction, and the second direction is perpendicular to the first direction; in one first pixel group, each first sub-pixel in at least one first pixel unit is circularly arranged along a first direction according to a first sequence, and for one repeating unit, in any two adjacent first pixel groups, the colors of the first sub-pixels sequentially arranged along the first direction are different, so that second sub-pixels in each first pixel group are arranged in a staggered mode along the first direction; the first order is an order in which first sub-pixels of n different colors are arranged in order from the first to the nth.
Optionally, n is greater than or equal to 3.
Optionally, the first sub-pixel and the second sub-pixel are both strip-shaped and extend along a second direction, and the second direction is perpendicular to the first direction.
Optionally, the first direction is a row direction arranged in a matrix form.
On the other hand, an embodiment of the present invention provides a liquid crystal display device, including the above-mentioned liquid crystal display assembly, and a controller electrically connected to the liquid crystal display assembly; the controller is used for inputting a first gray scale voltage for driving a first sub-pixel in the first liquid crystal box to display to the first liquid crystal box, and inputting a second gray scale voltage for driving a second pixel unit in the second liquid crystal box to display to the second liquid crystal box, so that the first liquid crystal box and the second liquid crystal box display images to be displayed under the corresponding first gray scale voltage and the second gray scale voltage; and the third gray scale voltage is used for driving the second sub-pixels in the first liquid crystal box to display according to the positions of the second sub-pixel groups in the first liquid crystal box in the display units, and the brightness rendering is carried out on the image to be displayed by the liquid crystal display component.
Optionally, the device further comprises a backlight module, wherein the backlight module is electrically connected with the controller; the backlight module is arranged on one side of the second liquid crystal box far away from the first liquid crystal box; the controller is also used for controlling the backlight module to provide backlight for the liquid crystal display assembly.
In another aspect, an embodiment of the present invention provides a display method of a liquid crystal display device, where the display method is applied to the liquid crystal display device, and the display method includes:
inputting a first gray scale voltage for driving a first sub-pixel in the first liquid crystal box to display to the first liquid crystal box, and inputting a second gray scale voltage for driving a second pixel unit in the second liquid crystal box to display to the second liquid crystal box, so that the first liquid crystal box and the second liquid crystal box display images to be displayed under the corresponding first gray scale voltage and the second gray scale voltage.
And generating a third gray scale voltage for driving the second sub-pixels in the first liquid crystal box to display according to the position of each second sub-pixel group in each display unit in the first liquid crystal box, and performing brightness rendering on the image to be displayed by the liquid crystal display component.
Optionally, according to the position of each second sub-pixel group in each display unit in the first liquid crystal cell, generating a third gray scale voltage for driving the second sub-pixels in the first liquid crystal cell to display, and performing brightness rendering on the image to be displayed by the liquid crystal display assembly; the method comprises the following steps:
and judging the position of each second sub-pixel group in each sub-unit in each first pixel unit.
If any second sub-pixel group in one first pixel unit is located in the middle of one display unit, the minimum value of the first gray scale voltage for driving the first sub-pixel to display in the display unit is used as the third gray scale voltage for driving each second sub-pixel in the second sub-pixel group to display.
If any second sub-pixel group in one first pixel unit is located at the edge position of one display unit, the maximum value of a first gray scale voltage for driving the first sub-pixel to display in the display unit where the second sub-pixel group is located and a first gray scale voltage for driving the first sub-pixel to display in the display unit adjacent to the second sub-pixel group is used as a third gray scale voltage for driving each second sub-pixel in the second sub-pixel group to display.
Optionally, when the Display gamma of the liquid crystal Display module is γ, the Display gamma of the first liquid crystal cell is γ 1, and the Display gamma of the second liquid crystal cell is γ 2, the first liquid crystal cell and the second liquid crystal cell Display an image to be displayed under the corresponding first gray scale voltage and the second gray scale voltage, which satisfy the following relation, wherein Display is performedγThe method comprises the steps that RGB is the original brightness of an image to be displayed, the first Gray scale voltage is RGB, and the second Gray scale voltage is Gray;
Displayγ＝RGBγ1*Grayγ2。
optionally, before inputting a first gray scale voltage for driving a first sub-pixel in the first liquid crystal cell to display to the first liquid crystal cell and inputting a second gray scale voltage for driving a second pixel unit in the second liquid crystal cell to display to the second liquid crystal cell, so that the first liquid crystal cell and the second liquid crystal cell display an image to be displayed under the corresponding first gray scale voltage and the second gray scale voltage, the method further includes:
acquiring gray-scale values of all first sub-pixels corresponding to the image to be displayed and displayed by the liquid crystal display component under a first condition; the first condition is that each row of sub-pixels which are sequentially arranged along the first direction of the liquid crystal display component only comprises first sub-pixels, and the arrangement sequence of the first sub-pixels is the same as that of the first sub-pixels of the corresponding row in the first liquid crystal box; and converting the gray scale value of each first sub-pixel corresponding to the image to be displayed by the liquid crystal display component under the first condition into a first gray scale voltage for driving the first sub-pixel in the first liquid crystal box to display and a second gray scale voltage for driving the second pixel unit in the second liquid crystal box to display.
Optionally, the gray scale value of each first sub-pixel corresponding to the image to be displayed, which is displayed by the liquid crystal display module under the first condition, is converted into a first gray scale voltage for driving the first sub-pixel in the first liquid crystal cell to display, and a second gray scale voltage for driving the second pixel unit in the second liquid crystal cell to display; the method comprises the following steps: acquiring gray scale voltage input to each first sub-pixel corresponding to the image to be displayed by the liquid crystal display assembly under the first condition according to the gray scale value of each first sub-pixel corresponding to the image to be displayed by the liquid crystal display assembly under the first condition; and generating a first gray scale voltage for driving the first sub-pixels in the first liquid crystal box to display and a second gray scale voltage for driving the second pixel units in the second liquid crystal box to display according to the gray scale voltage input to each first sub-pixel corresponding to the image to be displayed and displayed by the liquid crystal display component under the first condition.
Optionally, a first gray scale voltage for driving the first sub-pixels in the first liquid crystal cell to display and a second gray scale voltage for driving the second pixel unit in the second liquid crystal cell to display are generated according to the gray scale voltage input to each first sub-pixel corresponding to the image to be displayed and displayed by the liquid crystal display component under the first condition; the method comprises the following steps: according to the fact that the gray-scale value of each first sub-pixel corresponding to the image to be displayed by the liquid crystal display assembly under the first condition is equal to the original brightness of the image to be displayed, for the same display unit, the gray-scale value of each first sub-pixel corresponding to the image to be displayed by the liquid crystal display assembly under the first condition and the gray-scale voltage Input to each first sub-pixel corresponding to the image to be displayed by the liquid crystal display assembly under the first condition meet the following relation, wherein Input is the gray-scale voltage Input to each first sub-pixel corresponding to the image to be displayed by the liquid crystal display assembly under the first condition.
Inputγ＝Displayγ。
The following can be obtained:
Inputγ＝RGBγ1*Grayγ2。
according to the different resolutions of the first liquid crystal cell 1 and the second liquid crystal cell 2, for the same display unit F, the following relationship exists between the first gray scale voltage and the second gray scale voltage:
RGB＝Inputγ-γ2*Gray-γ1-γ2。
optionally, before generating a first gray scale voltage for driving the first sub-pixels in the first liquid crystal cell to display and a second gray scale voltage for driving the second pixel unit in the second liquid crystal cell to display according to the gray scale voltage input to each first sub-pixel corresponding to the image to be displayed under the first condition, the display method further includes: and determining the maximum value of the gray scale voltage input to the position of each display unit in the second pixel unit corresponding to the liquid crystal display assembly as the value of the second gray scale voltage for driving the second pixel unit in the second liquid crystal box to display according to the gray scale voltage input to each first sub-pixel corresponding to the image to be displayed and displayed by the liquid crystal display assembly under the first condition.
The embodiment of the invention provides a liquid crystal display assembly, a liquid crystal display device and a display method thereof. In each first pixel unit, each first sub-pixel group includes 3 different color first sub-pixels, such as a red sub-pixel, a green sub-pixel, and a blue sub-pixel, then, at this time, by introducing at least one second sub-pixel between the red sub-pixel, the green sub-pixel and the blue sub-pixel, since the transmittance of light transmitted through any one of the second sub-pixels is greater than the transmittance of light transmitted through each of the first sub-pixels with respect to the transmittance of light of the same brightness, therefore, when displaying, under the condition of same backlight brightness, the gray scale voltage of the second sub-pixel is controlled to be same as that of the first sub-pixel, thereby improving the transmittance, therefore, the problem that the transmittance is low and the brightness and the contrast are low due to the fact that the double-layer liquid crystal boxes are overlapped in the related technology can be solved.
Meanwhile, based on dynamic backlight adjustment, the backlight brightness is adjusted according to the brightness of the picture, and high-contrast display in a million level can be realized, so that the power consumption of the liquid crystal display device can be effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structural diagram of a liquid crystal display device according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a top view of a liquid crystal display device according to an embodiment of the present invention;
FIG. 3a is a schematic diagram illustrating a top view of a first liquid crystal cell according to an embodiment of the present invention;
fig. 3b is a schematic top view of a second liquid crystal cell according to an embodiment of the invention;
FIG. 4 is a schematic diagram illustrating a top view of a first liquid crystal cell according to an embodiment of the invention;
FIG. 5 is a schematic diagram illustrating a top view of a first liquid crystal cell according to an embodiment of the invention;
FIG. 6 is a schematic diagram illustrating a top view of a first liquid crystal cell according to an embodiment of the invention;
FIG. 7 is a schematic diagram illustrating a top view of a first liquid crystal cell according to an embodiment of the invention;
FIG. 8 is a schematic diagram illustrating a top view of a first liquid crystal cell according to an embodiment of the invention;
FIG. 9 is a schematic diagram illustrating a top view of a first liquid crystal cell according to an embodiment of the invention;
FIG. 10 is a schematic diagram illustrating a top view of a first liquid crystal cell according to an embodiment of the invention;
FIG. 11 is a schematic diagram illustrating a top view of a second liquid crystal cell in accordance with an embodiment of the present invention;
FIG. 12 is a flowchart illustrating a display method of an LCD device according to an embodiment of the present invention;
fig. 13 is a schematic top view of a first liquid crystal cell according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
An embodiment of the present invention provides a liquid crystal display device, referring to fig. 1, including: a liquid crystal display assembly 100, and a controller 200 electrically connected to the liquid crystal display assembly 100.
As shown in fig. 1, the liquid crystal display assembly 100 includes a first liquid crystal cell 1 and a second liquid crystal cell 2 which are stacked. The liquid crystal display device further comprises a backlight module 300 electrically connected to the controller 200, the backlight module 300 is disposed in the liquid crystal display assembly 100, the second liquid crystal cell 2 is far away from one side of the first liquid crystal cell 1, and the controller 200 is configured to control the backlight module 300 to provide backlight to the liquid crystal display assembly 100 and control the liquid crystal display assembly 100 to perform display.
As shown in fig. 2, the liquid crystal display device 100 has a display area a and a peripheral area S. The display area a is provided with a plurality of sub-pixel areas Q, and the peripheral area S is used for wiring, for example, a gate driving circuit may be disposed in the peripheral area S.
As shown in fig. 3a, the first liquid crystal cell 1 includes a plurality of repeating units K arranged in a matrix form in a display region a, each repeating unit K includes at least one pixel group X, each pixel group X includes at least one first pixel unit X1 arranged in sequence along a first direction, each first pixel unit X1 includes at least one first sub-pixel group P1 and at least one second sub-pixel group P2, each first sub-pixel group P1 includes n different first sub-pixels P arranged in sequence along the first direction, the number of the first sub-pixels P of each color is at least one, each second sub-pixel group P2 includes at least one second sub-pixel W, the first direction is a row direction or a column direction arranged in a matrix form, and n is a positive integer greater than or equal to 2.
In each first pixel unit X1, the number of the second sub-pixel groups P2 is less than or equal to the number of the first sub-pixels P, and any two of the second sub-pixel groups P2 are not continuous, the sum of the number of the first sub-pixels P and the number of the second sub-pixel groups P2 is an integral multiple of n, and each n of the first sub-pixels P and the second sub-pixel groups P2 which are continuously arranged serve as one display unit F. The transmittance of light transmitted through any one of the second subpixels W is greater than the transmittance of light transmitted through each of the first subpixels P for the same luminance of light, and the shape and the aperture ratio of each of the second subpixels W are the same as those of one of the first subpixels P.
As shown in fig. 3b, the second liquid crystal cell 2 includes a plurality of second pixel units X2 disposed in the display area a, wherein each of the second pixel units X2 corresponds to at least one repeating unit K.
Optionally, the n different color first sub-pixels P may be primary color sub-pixels emitting light of different colors, respectively, and the second sub-pixel W may be a white sub-pixel emitting white light or a yellow sub-pixel emitting yellow light.
Here, taking n equal to 3 as an example, the 3 different first subpixels P may be a red subpixel R, a green subpixel G, and a blue subpixel B, respectively.
The shapes of the first subpixel P and the second subpixel W are not limited, and for example, the shapes of the first subpixel P and the second subpixel W may be a diamond shape, a stripe shape, or a rectangle.
In the present embodiment, for convenience of description, as shown in fig. 3a, only the shape of the first subpixel P and the second subpixel W is illustrated as a stripe shape, and the first direction is a row direction (a direction shown in the horizontal direction) in which the repeating units K are arranged in a matrix form, and at this time, the stripe shapes may each extend in a second direction, which is perpendicular to the first direction, that is, in a column direction (a direction shown in the vertical direction) in which the repeating units K are arranged in a matrix form.
In this regard, in each first pixel unit X1, each first sub-pixel group P1 includes 3 different colors of first sub-pixels P arranged in sequence in the first direction, for example, a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, and at this time, by introducing at least one second sub-pixel W between the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B, since the transmittance of light transmitted through any one of the second sub-pixels W is greater than the transmittance of light transmitted through each of the first sub-pixels P with respect to light of the same luminance, when displaying, in the case where the luminance of the backlight is the same, the transmittance can be increased by controlling the gray scale voltage of the second sub-pixel W to be the same as the gray scale voltage of the first sub-pixel P, and thus the problem of low transmittance due to the superposition of the double layer liquid crystal cells in the related art can be solved, thereby causing a problem of low brightness and contrast.
Meanwhile, based on dynamic backlight adjustment, the backlight brightness is adjusted according to the brightness of the picture, and high-contrast display in a million level can be realized, so that the power consumption of the liquid crystal display device can be effectively reduced.
Where, according to each first pixel unit X1 including at least one first sub-pixel group P1 and at least one second sub-pixel group P2, each first sub-pixel group P1 includes n different first sub-pixels P arranged in sequence along the first direction, the number of the first sub-pixels P of each color is at least one, and each second sub-pixel group P2 includes at least one second sub-pixel W, it can be known that, in the case where each first sub-pixel group P1 includes a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, each first pixel unit X1 may include at least one red sub-pixel R, at least one green sub-pixel G, at least one blue sub-pixel B, and at least one second sub-pixel W.
On the other hand, according to that in each first pixel unit X1, the number of the second sub-pixel groups P2 is less than or equal to the number of the first sub-pixels P, any two second sub-pixel groups P2 are not continuous, and the sum of the number of the first sub-pixels P and the number of the second sub-pixel groups P2 is an integer multiple of n, it can be known that: in one first pixel unit X1, the first subpixel P and the second subpixel W may be arranged in various ways.
First, taking the example that each second sub-pixel group P2 includes one second sub-pixel W in each first pixel unit X1, the first case may be that the first sub-pixel P and the second sub-pixel W are arranged as shown in fig. 4, that is, each first pixel unit X1 includes one red sub-pixel R, one green sub-pixel G and one blue sub-pixel B, and 3 second sub-pixel groups P2, when the sum of the number of the first sub-pixels P and the number of the second sub-pixel groups P2 is an integral multiple (6) of n (n is 3). In a second case, the first sub-pixel P and the second sub-pixel W may be arranged as shown in fig. 5, that is, in a case where each of the first pixel units X1 includes two red sub-pixels R, two green sub-pixels G, and one blue sub-pixel B, and one second sub-pixel group P2, the sum of the number of the first sub-pixels P and the number of the second sub-pixel group P2 is an integral multiple (6) of n (n is 3). In a third case, the first subpixel P and the second subpixel W may be arranged as shown in fig. 6, that is, in a case where each of the first pixel units X1 includes one red subpixel R, one green subpixel G, and two blue subpixels B, and two second subpixel groups P2, where the sum of the number of the first subpixels P and the number of the second subpixel groups P2 is an integral multiple of n (n is 3) (6).
Here, it should be noted that the above three cases are merely examples, and those skilled in the art can understand that, in practical applications, all examples satisfying "each first pixel unit X1 may include at least one red sub-pixel R, at least one green sub-pixel G, at least one blue sub-pixel B, and at least one second sub-pixel W, and in each first pixel unit X1, the number of the second sub-pixel groups P2 is less than or equal to the number of the first sub-pixels P, and any two of the second sub-pixel groups P2 are not consecutive, and the sum of the number of the first sub-pixels P and the number of the second sub-pixel groups P2 is an integer multiple of n" are within the protection scope of the present invention.
Next, taking as an example that each second sub-pixel group P2 includes two second sub-pixels W in each first pixel unit X1, as similar to the above case that each second sub-pixel group P2 includes one second sub-pixel W, the first case that the first sub-pixels P and the second sub-pixels W are arranged as shown in fig. 7, that is, each first pixel unit X1 includes one red sub-pixel R, one green sub-pixel G and one blue sub-pixel B, and 3 second sub-pixel groups P2, at this time, the sum of the number of the first sub-pixels P and the number of the second sub-pixel groups P2 is an integral multiple (6) of n (n is 3). In the second case, the arrangement of the first sub-pixel P and the second sub-pixel W may be as shown in fig. 8, that is, in the case that each of the first pixel units X1 includes two red sub-pixels R, two green sub-pixels G, and one blue sub-pixel B, and one second sub-pixel group P2, in this case, the sum of the number of the first sub-pixels P and the number of the second sub-pixel group P2 is an integral multiple (6) of n (n is 3). In a third case, the first subpixel P and the second subpixel W may be arranged as shown in fig. 9, that is, in a case where each of the first pixel units X1 includes one red subpixel R, one green subpixel G, and two blue subpixels B, and two second subpixel groups P2, in which case the sum of the number of the first subpixels P and the number of the second subpixel groups P2 is an integral multiple of n (n is 3) (6).
As can be seen from the above analysis, in the single first pixel cell X1, the first subpixel P and the second subpixel group P2 are arranged in any of the above-described forms, and thus the technical effect of improving the transmittance can be achieved. And as the number of the introduced second sub-pixels W is larger, the transmittance obtained finally is higher, and the brightness and the contrast can be improved better.
Here, it should be noted that, the above is only a description of the arrangement of one first pixel unit X1, and for the entire first liquid crystal cell 1, since the first liquid crystal cell 1 includes a plurality of repeating units K arranged in a matrix form, each repeating unit K includes at least one pixel group X, each pixel group X includes at least one first pixel unit X1 arranged in sequence along the first direction, in the first case that each second sub-pixel group P2 includes one second sub-pixel W in each first pixel unit X1, each repeating unit K may include one pixel group X, each pixel group X may include one first pixel unit X1 arranged in sequence along the first direction, in this case, the top view of the first liquid crystal cell 1 may be as shown in fig. 4, that is, the first liquid crystal cell 1 is a red sub-pixel R, a blank sub-pixel W, a green sub-pixel G, and a green sub-pixel G, The blank subpixel, the blue subpixel B, and the blank subpixel W are arranged as a minimum repeating unit, and the repeating unit K is the same as the minimum repeating unit. In the second case where each of the second subpixel groups P2 includes one second subpixel W in each of the first pixel units X1, each of the repeating units K may include one pixel group X, and each of the pixel groups X may include two first pixel units X1 sequentially arranged in the first direction, a top view of the first liquid crystal cell 1 may be as shown in fig. 3a, that is, the first liquid crystal cell 1 is arranged with the red, green, blue and blank sub-pixels R, G, B and W as the minimum repeating unit, and the repeating unit K at this time is not equal to the minimum repeating unit but is related to the number of the display units F, that is, each of the first pixel units X1 includes two display units F, and at this time, since each of the repeating units K includes two first pixel units X1 and each of the second pixel units corresponds to one of the repeating units K, each of the second pixel units corresponds to 4 display units F.
Here, in the first liquid crystal cell 1, the first subpixel P and the second subpixel W are exemplified by red subpixel R, green subpixel G, blue subpixel B and blank subpixel W as minimum repeating units, before the second subpixel W is introduced, the first liquid crystal cell 1 is arranged by red subpixel R, green subpixel G and blue subpixel B as minimum repeating units, and the first liquid crystal cell 1 has a luminance of 10000 × 5% to 500nit, and under the same backlight, the luminance of the second liquid crystal cell 2 is 6% and the transmittance of the first liquid crystal cell 1 is 5% for example, the luminance of the first liquid crystal cell 1 is 10000 × 6% to 300nit, compared with the luminance of the single liquid crystal cell lost (500 × 300)/500 × 40%, if the first liquid crystal cell 1 is arranged with the red subpixel R, the green subpixel G, the blue subpixel B and the blank subpixel W as the minimum repeating unit, the single-layer liquid crystal cell can increase the brightness by at least 1.5 times, and at this time, the display brightness after the double-layer liquid crystal cell is overlapped is 10000 × 6% × 5% × 1.5 ═ 450nit, and the loss of the brightness is (500-.
It can be seen that as the number of second subpixels (i.e., blank subpixels W) introduced into each of the first pixel units X1 increases, the luminance loss decreases, but at the same time, the number of first subpixels P decreases accordingly, resulting in a resolution loss.
For example, taking the red sub-pixel R, the green sub-pixel G, the blue sub-pixel B and the blank sub-pixel W as the minimum repeating units of the first liquid crystal cell 1 after the second sub-pixel W is introduced as an example, compared with the first liquid crystal cell 1 before the second sub-pixel W is introduced, the first liquid crystal cell has the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B as the minimum repeating units, the number of the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B is reduced by 1/4, and the resolution is reduced by 3/4. If the red sub-pixel R, the blank sub-pixel W, the green sub-pixel G, the blank sub-pixel W, the blue sub-pixel B and the blank sub-pixel W are minimum repeating units in the first liquid crystal cell 1 after the second sub-pixel W is introduced, the numbers of the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B are reduced by 1/2, and the resolution is reduced to 1/2 as compared with the case where the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B are minimum repeating units in the first liquid crystal cell 1 before the second sub-pixel W is introduced.
In some embodiments, as shown in fig. 10, each of the repeating units K includes at least two pixel groups X sequentially arranged in a second direction, each of the pixel groups X includes at least one first pixel unit X1 sequentially arranged in a first direction, and the second direction is perpendicular to the first direction.
In one pixel group X, the respective first sub-pixels P in at least one first pixel unit X1 are cyclically arranged in a first order along a first direction, and for one repeating unit K, in any two adjacent pixel groups X, the first sub-pixels P sequentially arranged along the first direction are different in color, so that the second sub-pixels W located in the respective pixel groups X are alternately arranged along the first direction. The first order is an order in which the first subpixels P of n different colors are arranged in order from the first to the nth.
In one repeating unit K, in the first pixel group X arranged along the second direction, still taking an example that the first subpixel P and the second subpixel W in each first pixel unit X1 are arranged with the red subpixel R, the green subpixel G, the blue subpixel B, and the blank subpixel W as the minimum repeating unit, the first order in the first pixel group X is an order in which the red subpixel R, the green subpixel G, and the blue subpixel B are arranged in sequence, and at this time, the color of the first subpixel P arranged in sequence along the first direction is red. In the second pixel group X, the first subpixel P and the second subpixel W in each first pixel unit X1 are also arranged with the red subpixel R, the green subpixel G, the blue subpixel B, and the blank subpixel W as the minimum repeating unit, except that in the second pixel group X, the color of the first subpixel P arranged in sequence in the first direction is different from the color of the first subpixel P arranged in sequence in the first direction in the first pixel group X, that is, may be blue, so that the second subpixel W in the first pixel group X and the second subpixel W in the second pixel group W are alternately arranged in the first direction.
In the present embodiment, for the entire first liquid crystal cell 1, the first subpixel P and the second subpixel W are arranged as shown in fig. 10, so that when displaying, the subpixel rendering is facilitated, the display image quality is enhanced, and the resolution loss is compensated.
Specifically, during displaying, the controller 200 is configured to input a first gray scale voltage for driving a first subpixel P in the first liquid crystal cell 1 to display to the first liquid crystal cell 1, and input a second gray scale voltage for driving a second pixel unit X2 in the second liquid crystal cell 2 to display to the second liquid crystal cell 2, so that the first liquid crystal cell 1 and the second liquid crystal cell 1 display an image to be displayed at the corresponding first gray scale voltage and second gray scale voltage; since each second pixel unit X2 corresponds to one repeating unit K, taking the case where each repeating unit K includes two pixel groups X each including one first pixel unit X1, and each of n first sub-pixels P and second sub-pixel groups P2 arranged in series as one display unit F, each second pixel unit X2 corresponds to 4 display units F, where the backlight luminance is the same for the 4 display units F, since the transmittance of light transmitted through any one second sub-pixel W is greater than the transmittance of light transmitted through each first sub-pixel P for the same luminance of light, on the basis that the controller 200 controls the first liquid crystal cell 1 and the second liquid crystal cell 2 to display an image to be displayed, by the controller 200 according to the positions of the respective second sub-pixel groups P2 in the respective display units F, generating a third gray scale voltage for driving the second subpixel W in the first liquid crystal cell 1 to display, so as to render the brightness of the image to be displayed on the liquid crystal display assembly 100.
In this process, by alternately arranging the second subpixels W located in different pixel groups X in the first direction, the gray scale voltage input to the first subpixel P of the same display unit F may be kept constant, and the gray scale voltage of the second subpixel W may be generated by the first subpixel P of the display unit F where it is located according to the brightness of each display unit F, or may be generated by the first subpixel P adjacent to the display unit F where it is located, and thus, compared with the arrangement in which the second subpixels W located in different pixel groups X are aligned in the first direction, it is possible to prevent local over-brightness, thereby facilitating subpixel rendering, and by adjusting the brightness of each second subpixel W, the luminance of the second subpixel W is made to be close to the luminance of the first subpixel P located at the same position before the second subpixel W is introduced, and the resolution loss can be compensated.
Based on the above structure, some embodiments of the present invention provide a display method of a liquid crystal display device, applied to the liquid crystal display device as described above, as shown in fig. 12, the display method including:
s1, as shown in FIGS. 10 and 11, the first liquid crystal cell 1 is input and driven
A first gray scale voltage for displaying by the first subpixel P in fig. 1 is input to the second liquid crystal cell 2, and a second gray scale voltage for driving the second pixel unit X2 in the second liquid crystal cell 2 to display is input to the second liquid crystal cell 2, so that the first liquid crystal cell 1 and the second liquid crystal cell 2 display an image to be displayed under the corresponding first gray scale voltage and the second gray scale voltage.
Wherein, according to the Display gamma of the liquid crystal Display component being γ, the Display gamma of the first liquid crystal box 1 being γ 1, and the Display gamma of the second liquid crystal box 2 being γ 2, when the first liquid crystal box 1 and the second liquid crystal box 2 Display the image to be displayed under the corresponding first gray scale voltage and the second gray scale voltage, the following relational expression is satisfied, wherein, the Display satisfiesγRGB is the first Gray scale voltage and Gray is the second Gray scale voltage for the original brightness of the image to be displayed.
Displayγ＝RGBγ1*Grayγ2。
And S2, generating a third gray scale voltage for driving the second sub-pixel W in the first liquid crystal cell 1 to display according to the position of each second sub-pixel group P2 in each display unit F in the first liquid crystal cell 1, and performing brightness rendering on the image to be displayed by the liquid crystal display assembly.
Wherein, since each second pixel unit X2 corresponds to one repeating unit K, taking as an example that each repeating unit K includes two pixel groups X each including one first pixel unit X1, and each n number of first sub-pixels P and second sub-pixel groups P2 arranged in series as one display unit F, each second pixel unit X2 corresponds to 4 display units F, at which time, for the 4 display units, the backlight luminance is the same, since the transmittance of light transmitted through any one second sub-pixel W is greater than the transmittance of light transmitted through each first sub-pixel P with respect to the transmittance of light of the same luminance, on the basis that the controller controls the first liquid crystal cell 1 and the second liquid crystal cell 2 to display an image to be displayed, by the controller according to the positions of the respective second sub-pixel groups P2 in the respective display units F, and generating a third gray scale voltage for driving the second sub-pixel P in the first liquid crystal box 1 to display, so that the liquid crystal display component can display the image to be displayed and perform brightness rendering.
Specifically, according to the position of each second subpixel group P2 in each display unit F in the first liquid crystal cell 1, a third grayscale voltage for driving the second subpixel W in the first liquid crystal cell 1 to display is generated, and brightness rendering is performed on the image to be displayed by the liquid crystal display assembly; the method comprises the following steps:
s21, determining the position of each second sub-pixel group P2 in each sub-unit F in each first pixel unit X1.
If any one of the second sub-pixel groups P2 of one of the first pixel units X1 is located at an intermediate position of one of the display units F, the minimum value of the first gray-scale voltages for driving the first sub-pixels W to display in the display unit F is set as the third gray-scale voltage for driving each of the second sub-pixels W in the second sub-pixel group P2 to display. If any one of the second sub-pixel groups P2 in one of the first pixel units X1 is located at an edge of one of the display units F, the maximum value of the first gray scale voltage for driving the first sub-pixel P to display in the display unit F where the second sub-pixel group P2 is located and the first gray scale voltage for driving the first sub-pixel P to display in the display unit F adjacent to the second sub-pixel group P2 is used as the third gray scale voltage for driving each of the second sub-pixels W in the second sub-pixel group P2 to display.
In the present embodiment, by introducing the second sub-pixels W, since the transmittance of light passing through any one of the second sub-pixels W is greater than the transmittance of light passing through each of the first sub-pixels P with respect to the transmittance of light having the same brightness, on the basis that the controller controls the first liquid crystal cell 1 and the second liquid crystal cell 2 to display an image to be displayed, the controller generates the third grayscale voltage for driving the second sub-pixels W in the first liquid crystal cell 1 to display according to the position of each of the second sub-pixel groups P2 in each of the display cells F, and performs brightness rendering on the image to be displayed on the liquid crystal display assembly, so that the transmittance can be increased, and the problem of low brightness and low contrast caused by the overlapping of the two-layer liquid crystal cells in the related art can be solved.
Meanwhile, based on dynamic backlight adjustment, the backlight brightness is adjusted according to the brightness of the picture, and high-contrast display in a million level can be realized, so that the power consumption of the liquid crystal display device can be effectively reduced.
On the other hand, the controller generates a third gray scale voltage for driving the second sub-pixel W in the first liquid crystal cell 1 to display according to the position of each second sub-pixel group P2 in each display unit F, and performs brightness rendering on the image to be displayed on the liquid crystal display assembly.
Meanwhile, under the condition that the second sub-pixels W in the first pixel group X and the second sub-pixels W in the second pixel group C are arranged in a staggered manner along the first direction, compared with the condition that the second sub-pixels W in different pixel groups X are arranged in an aligned manner along the first direction, the sub-pixel rendering is facilitated, and the brightness of each second sub-pixel W is adjusted, so that the brightness of the second sub-pixel W is close to the brightness of the first sub-pixel P at the same position before the second sub-pixel W is not introduced, and the resolution loss can be compensated.
Here, taking the resolution of the first liquid crystal cell 1 as 3840 × 2160 as an example, when each second sub-pixel group P2 includes one second sub-pixel W, and 3 sub-pixels are still used as one pixel, the resolution of the second liquid crystal cell 2 is 1920 × 1080. At this time, the resolution of the first liquid crystal cell 1 is 3840 × 2160 before the second subpixel W is introduced, and the red subpixel R, the green subpixel G and the blue subpixel B are reduced by 1/4 after the second subpixel W is introduced, so that the resolution of the first liquid crystal cell 1 is reduced to 3/4, and at this time, the resolution of the first liquid crystal cell 1 is 2880 × 1080.
In the present embodiment, the resolution of the first liquid crystal cell 1 is 3840 × 2160, each of the second pixel units X2 in the second liquid crystal cell 2 corresponds to 4 display units, and the second liquid crystal cell 2 has no color film before the second subpixel W is introduced.
In some embodiments, before a first gray scale voltage for driving a first subpixel P in the first liquid crystal cell 1 to display is input to the first liquid crystal cell 1, and a second gray scale voltage for driving a second pixel unit X2 in the second liquid crystal cell 2 to display is input to the second liquid crystal cell 2, so that the first liquid crystal cell 1 and the second liquid crystal cell 2 display an image to be displayed at the corresponding first gray scale voltage and the second gray scale voltage, the display method further includes:
acquiring gray-scale values of first sub-pixels corresponding to an image to be displayed and displayed by a liquid crystal display assembly under a first condition; the first condition is that the liquid crystal display device only includes the first sub-pixels P corresponding to each row of sub-pixels sequentially arranged along the first direction, and the arrangement order of the first sub-pixels P is the same as the arrangement order of the first sub-pixels P of the corresponding row in the first liquid crystal cell 1. I.e. the configuration shown in fig. 13.
The gray scale value of each first sub-pixel P corresponding to the image to be displayed by the liquid crystal display component under the first condition is converted into a first gray scale voltage for driving the first sub-pixel P in the first liquid crystal box 1 to display and a second gray scale voltage for driving the second pixel unit X2 in the second liquid crystal box 2 to display.
In this embodiment, the liquid crystal Display device displays the gray-scale value of each first sub-pixel P corresponding to the image to be displayed under the first condition, that is, the gray-scale value is equal to the original brightness Display of the image to be displayedγ。
In other embodiments, the gray scale value of each first sub-pixel P corresponding to the image to be displayed by the liquid crystal display device under the first condition is converted into a first gray scale voltage for driving the first sub-pixel P in the first liquid crystal cell 1 to display and a second gray scale voltage for driving the second pixel unit X2 in the second liquid crystal cell 2 to display; the method comprises the following steps:
and acquiring the gray scale voltage Input, corresponding to the image to be displayed and Input to each first sub-pixel P, of the liquid crystal display assembly under the first condition according to the gray scale value of each first sub-pixel corresponding to the image to be displayed and displayed by the liquid crystal display assembly under the first condition.
According to the Gray scale voltage Input of each first sub-pixel P corresponding to the image to be displayed and displayed by the liquid crystal display assembly under the first condition, a first Gray scale voltage RGB for driving the first sub-pixel P in the first liquid crystal box 1 to display and a second Gray scale voltage Gray for driving the second pixel unit X2 in the second liquid crystal box 2 to display are generated.
Specifically, according to the fact that the gray-scale value of each first subpixel P corresponding to the image to be displayed by the liquid crystal display assembly under the first condition is equal to the original brightness of the image to be displayed, the gray-scale value of each first subpixel P corresponding to the image to be displayed by the liquid crystal display assembly under the first condition and the gray-scale voltage Input to each first subpixel P corresponding to the image to be displayed by the liquid crystal display assembly under the first condition satisfy the following relation, wherein Input is the gray-scale voltage Input to each first subpixel P corresponding to the image to be displayed by the liquid crystal display assembly under the first condition.
Inputγ＝Displayγ。
The following can be obtained:
Inputγ＝RGBγ1*Grayγ2。
according to the different resolutions of the first liquid crystal cell 1 and the second liquid crystal cell 2, for the same display unit F, the following relationship exists between the first gray scale voltage and the second gray scale voltage:
RGB＝Inputγ-γ2*Gray-γ1-γ2。
in other embodiments, before generating a first gray scale voltage for driving the first sub-pixel P in the first liquid crystal cell 1 to display and a second gray scale voltage for driving the second pixel unit X2 in the second liquid crystal cell 2 to display according to the gray scale voltage input to each first sub-pixel P corresponding to the image to be displayed under the first condition, the display method further includes:
according to the gray scale voltage input to each first sub-pixel P corresponding to the image to be displayed by the liquid crystal display device under the first condition, the maximum value of the gray scale voltage input to the position of each display unit F in the second pixel unit X2 corresponding to the liquid crystal display device is determined to be the value of the second gray scale voltage for driving the second pixel unit X2 in the second liquid crystal cell 2 to display.
Illustratively, taking the example that one repeating unit corresponds to 4 display units, the second Gray scale voltage Gray has the following value relationship, where m is 2 × i-1, n is 2 × j-1, where i is e (1,1080), and j is e (1,1920).
Grayi,j＝max(Inputm,n，Inputm,n+1，Inputm+1,n，Inputm+1,n+1)。
The scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and the present invention is intended to be covered thereby. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (15)

1. The liquid crystal display assembly is characterized by comprising a display area and a peripheral area surrounding the display area;
the liquid crystal display module includes:
a first liquid crystal cell and a second liquid crystal cell which are arranged in a stacked manner;
the first liquid crystal cell comprises a plurality of repeating units which are arranged in a matrix form and arranged in the display area, each repeating unit comprises at least one pixel group, each pixel group comprises at least one first pixel unit which is sequentially arranged along a first direction, each first pixel unit comprises a plurality of sub-pixels, the plurality of sub-pixels comprise at least one first sub-pixel group and at least one second sub-pixel group, each first sub-pixel group comprises n first sub-pixels which are different in color and sequentially arranged along the first direction, the number of the first sub-pixels of each color is at least one, each second sub-pixel group comprises at least one second sub-pixel, the first direction is a row direction or a column direction which is arranged in the matrix form, and n is a positive integer which is greater than or equal to 2;
in each first pixel unit, the number of the second sub-pixel groups is less than or equal to the number of the first sub-pixels, any two second sub-pixel groups are not continuous, the sum of the number of the first sub-pixels and the number of the second sub-pixel groups is an integral multiple of n, and every n first sub-pixels and every n second sub-pixel groups which are continuously arranged are used as a display unit;
the transmittance of light transmitted through any one of the second sub-pixels is greater than the transmittance of light transmitted through each of the first sub-pixels for light of the same brightness, and the shape and the aperture ratio of each of the second sub-pixels are the same as those of one of the first sub-pixels;
the second liquid crystal cell comprises a plurality of second pixel units arranged in the display area, and each second pixel unit corresponds to at least one repeating unit.
2. The liquid crystal display assembly of claim 1,
the n first sub-pixels with different colors are primary color sub-pixels respectively emitting light with different colors;
the second sub-pixel is a white sub-pixel emitting white light or a yellow sub-pixel emitting yellow light.
3. The liquid crystal display module according to claim 1 or 2,
each repeating unit comprises at least two first pixel groups which are sequentially arranged along a second direction, each first pixel group comprises at least one first pixel unit which is sequentially arranged along the first direction, and the second direction is vertical to the first direction;
in one first pixel group, each first sub-pixel in at least one first pixel unit is circularly arranged along a first direction according to a first sequence, and for one repeating unit, in any two adjacent first pixel groups, the colors of the first sub-pixels sequentially arranged along the first direction are different, so that second sub-pixels in each first pixel group are arranged in a staggered mode along the first direction;
the first order is an order in which first sub-pixels of n different colors are arranged in order from the first to the nth.
4. The liquid crystal display module according to claim 1 or 2,
n is greater than or equal to 3.
5. The liquid crystal display module according to claim 1 or 2,
the first sub-pixels and the second sub-pixels are strip-shaped and extend along a second direction, and the second direction is perpendicular to the first direction.
6. The liquid crystal display assembly of claim 5,
the first direction is a row direction arranged in a matrix form.
7. A liquid crystal display device comprising the liquid crystal display module according to any one of claims 1 to 6, and a controller electrically connected to the liquid crystal display module;
the controller is used for inputting a first gray scale voltage for driving a first sub-pixel in the first liquid crystal box to display to the first liquid crystal box, and inputting a second gray scale voltage for driving a second pixel unit in the second liquid crystal box to display to the second liquid crystal box, so that the first liquid crystal box and the second liquid crystal box display images to be displayed under the corresponding first gray scale voltage and the second gray scale voltage; and the third gray scale voltage is used for driving the second sub-pixels in the first liquid crystal box to display according to the positions of the second sub-pixel groups in the first liquid crystal box in the display units, and the brightness rendering is carried out on the image to be displayed by the liquid crystal display component.
8. The LCD device of claim 7, further comprising a backlight module electrically connected to the controller;
the backlight module is arranged on one side of the second liquid crystal box far away from the first liquid crystal box;
the controller is also used for controlling the backlight module to provide backlight for the liquid crystal display assembly.
9. A display method of a liquid crystal display device, applied to the liquid crystal display device according to any one of claims 7 to 8, comprising:
inputting a first gray scale voltage for driving a first sub-pixel in the first liquid crystal box to display to the first liquid crystal box, and inputting a second gray scale voltage for driving a second pixel unit in the second liquid crystal box to display to the second liquid crystal box, so that the first liquid crystal box and the second liquid crystal box display images to be displayed under the corresponding first gray scale voltage and the second gray scale voltage;
and generating a third gray scale voltage for driving the second sub-pixels in the first liquid crystal box to display according to the position of each second sub-pixel group in each display unit in the first liquid crystal box, and performing brightness rendering on the image to be displayed by the liquid crystal display component.
10. The display method of the liquid crystal display device according to claim 9,
generating a third gray scale voltage for driving the second sub-pixels in the first liquid crystal box to display according to the position of each second sub-pixel group in each display unit in the first liquid crystal box, and performing brightness rendering on the image to be displayed by the liquid crystal display component; the method comprises the following steps:
judging the position of each second sub-pixel group in each sub-unit in each first pixel unit;
if any second sub-pixel group in one first pixel unit is located in the middle of one display unit, taking the minimum value of a first gray scale voltage for driving the first sub-pixel to display in the display unit as a third gray scale voltage for driving each second sub-pixel in the second sub-pixel group to display;
if any second sub-pixel group in one first pixel unit is located at the edge position of one display unit, the maximum value of a first gray scale voltage for driving the first sub-pixel to display in the display unit where the second sub-pixel group is located and a first gray scale voltage for driving the first sub-pixel to display in the display unit adjacent to the second sub-pixel group is used as a third gray scale voltage for driving each second sub-pixel in the second sub-pixel group to display.
11. The display method of the liquid crystal display device according to claim 9 or 10,
according to the liquid crystal Display component, the Display gamma is gamma, the Display gamma of the first liquid crystal box is gamma 1, the Display gamma of the second liquid crystal box is gamma 2, and when the first liquid crystal box and the second liquid crystal box Display images to be displayed under the corresponding first gray scale voltage and second gray scale voltage, the following relational expression is satisfied, wherein the DisplayγThe method comprises the steps that RGB is the original brightness of an image to be displayed, the first Gray scale voltage is RGB, and the second Gray scale voltage is Gray;
Displayγ＝RGBγ1*Grayγ2。
12. the display method of a liquid crystal display device according to claim 11,
before inputting a first gray scale voltage for driving a first sub-pixel in the first liquid crystal cell to display to the first liquid crystal cell and inputting a second gray scale voltage for driving a second pixel unit in the second liquid crystal cell to display to the second liquid crystal cell, so that the first liquid crystal cell and the second liquid crystal cell display an image to be displayed under the corresponding first gray scale voltage and the second gray scale voltage, the method further includes:
acquiring gray-scale values of all first sub-pixels corresponding to the image to be displayed and displayed by the liquid crystal display component under a first condition; the first condition is that each row of sub-pixels which are sequentially arranged along the first direction of the liquid crystal display component only comprises first sub-pixels, and the arrangement sequence of the first sub-pixels is the same as that of the first sub-pixels of the corresponding row in the first liquid crystal box;
and converting the gray scale value of each first sub-pixel corresponding to the image to be displayed by the liquid crystal display component under the first condition into a first gray scale voltage for driving the first sub-pixel in the first liquid crystal box to display and a second gray scale voltage for driving the second pixel unit in the second liquid crystal box to display.
13. The display method of a liquid crystal display device according to claim 12,
converting the gray scale value of each first sub-pixel corresponding to the image to be displayed by the liquid crystal display component under a first condition into a first gray scale voltage for driving the first sub-pixel in the first liquid crystal box to display and a second gray scale voltage for driving the second pixel unit in the second liquid crystal box to display; the method comprises the following steps:
acquiring gray scale voltage input to each first sub-pixel corresponding to the image to be displayed by the liquid crystal display assembly under the first condition according to the gray scale value of each first sub-pixel corresponding to the image to be displayed by the liquid crystal display assembly under the first condition;
and generating a first gray scale voltage for driving the first sub-pixels in the first liquid crystal box to display and a second gray scale voltage for driving the second pixel units in the second liquid crystal box to display according to the gray scale voltage input to each first sub-pixel corresponding to the image to be displayed and displayed by the liquid crystal display component under the first condition.
14. The display method of the liquid crystal display device according to claim 13,
according to the gray scale voltage of each input first sub-pixel corresponding to the image to be displayed and displayed by the liquid crystal display component under a first condition, generating a first gray scale voltage for driving the first sub-pixel in the first liquid crystal box to display and a second gray scale voltage for driving the second pixel unit in the second liquid crystal box to display; the method comprises the following steps:
according to the fact that the gray-scale value of each first sub-pixel corresponding to the image to be displayed by the liquid crystal display assembly under the first condition is equal to the original brightness of the image to be displayed, for the same display unit, the gray-scale value of each first sub-pixel corresponding to the image to be displayed by the liquid crystal display assembly under the first condition and the gray-scale voltage of each first sub-pixel corresponding to the image to be displayed by the liquid crystal display assembly under the first condition meet the following relation, wherein Input is the gray-scale voltage of each first sub-pixel corresponding to the image to be displayed by the liquid crystal display assembly under the first condition;
Inputγ＝Displayγ；
the following can be obtained:
Inputγ＝RGBγ1*Grayγ2；
according to the different resolutions of the first liquid crystal cell and the second liquid crystal cell, for the same display unit, the following relation exists between the first gray scale voltage and the second gray scale voltage:
RGB＝Inputγ-γ2*Gray-γ1-γ2。
15. the display method of the liquid crystal display device according to any one of claims 12 to 14,
before generating a first gray scale voltage for driving the first sub-pixels in the first liquid crystal box to display and a second gray scale voltage for driving the second pixel units in the second liquid crystal box to display according to the gray scale voltage input to each first sub-pixel corresponding to the image to be displayed under the first condition, the display method further comprises:
and determining the maximum value of the gray scale voltage input to the position of each display unit in the second pixel unit corresponding to the liquid crystal display assembly as the value of the second gray scale voltage for driving the second pixel unit in the second liquid crystal box to display according to the gray scale voltage input to each first sub-pixel corresponding to the image to be displayed and displayed by the liquid crystal display assembly under the first condition.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114902324A (en) * 2020-11-12 2022-08-12 京东方科技集团股份有限公司 Display method, display device, and storage medium

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04245218A (en) * 1991-01-31 1992-09-01 Fujitsu Ltd Liquid crystal display device
US20130120472A1 (en) * 2011-11-11 2013-05-16 Lg Display Co., Ltd. 4-primary color display and pixel data rendering method thereof
WO2016169021A1 (en) * 2015-04-21 2016-10-27 青岛海信电器股份有限公司 Image display driving method, apparatus and device
KR20180003300A (en) * 2016-06-30 2018-01-09 엘지디스플레이 주식회사 Image processing method, image processing module and display device using the same
CN107895568A (en) * 2017-12-28 2018-04-10 深圳市华星光电技术有限公司 Liquid crystal display device
CN108445683A (en) * 2018-03-26 2018-08-24 京东方科技集团股份有限公司 Display device and preparation method, the method for controlling contrast, light valve controller
CN108681164A (en) * 2018-05-16 2018-10-19 京东方科技集团股份有限公司 Display device and its display methods

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04245218A (en) * 1991-01-31 1992-09-01 Fujitsu Ltd Liquid crystal display device
US20130120472A1 (en) * 2011-11-11 2013-05-16 Lg Display Co., Ltd. 4-primary color display and pixel data rendering method thereof
WO2016169021A1 (en) * 2015-04-21 2016-10-27 青岛海信电器股份有限公司 Image display driving method, apparatus and device
KR20180003300A (en) * 2016-06-30 2018-01-09 엘지디스플레이 주식회사 Image processing method, image processing module and display device using the same
CN107895568A (en) * 2017-12-28 2018-04-10 深圳市华星光电技术有限公司 Liquid crystal display device
CN108445683A (en) * 2018-03-26 2018-08-24 京东方科技集团股份有限公司 Display device and preparation method, the method for controlling contrast, light valve controller
CN108681164A (en) * 2018-05-16 2018-10-19 京东方科技集团股份有限公司 Display device and its display methods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114902324A (en) * 2020-11-12 2022-08-12 京东方科技集团股份有限公司 Display method, display device, and storage medium
CN114902324B (en) * 2020-11-12 2023-10-10 京东方科技集团股份有限公司 Display method, display device and storage medium

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