WO2013149474A1 - 液晶显示面板及其驱动装置、方法 - Google Patents
液晶显示面板及其驱动装置、方法 Download PDFInfo
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- WO2013149474A1 WO2013149474A1 PCT/CN2012/085972 CN2012085972W WO2013149474A1 WO 2013149474 A1 WO2013149474 A1 WO 2013149474A1 CN 2012085972 W CN2012085972 W CN 2012085972W WO 2013149474 A1 WO2013149474 A1 WO 2013149474A1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
- G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
Definitions
- Liquid crystal display panel and driving device and method thereof Liquid crystal display panel and driving device and method thereof
- the present invention relates to the field of liquid crystal display, and in particular to a liquid crystal display panel and a driving device and method thereof.
- the architecture of a liquid crystal display panel is shown in FIG.
- the LCD module is composed of a Pixel Array with sub-pixels. 4.
- the gate driver IC 2 and the backlight unit 5 are composed of a data driver integrated circuit (Source Driver IC) 3 and a gate driver integrated circuit (gate driver IC) 2 and a clock controller ( Timing Controller ) 1 connection.
- FIG. 2 shows a schematic diagram of a pixel array of three sub-pixels of red, green and blue (RGB), each pixel consisting of three sub-pixels of RGB.
- RGB red, green and blue
- each pixel of the liquid crystal is composed of three sub-pixels of RGB, the liquid crystal molecules are combined into RGB pixels to form any color light, so the more vivid the three primary colors of RGB, the wider the range of colors that can be expressed; on the contrary, the less vivid the three primary colors, the more The narrower the range of colors displayed, because it cannot display colors that are more vivid than the three primary colors.
- the module structure of the liquid crystal display panel needs to be used for display after being multi-layered scattering and refraction, so that the proportion of the portion actually used for display in the backlight is small.
- FIG. 3 is a schematic diagram of a conventional pixel array in which a five-pitch (Pentile) pixel array is used and red, green, blue, and white (RGBW) sub-pixels are used.
- the pixel array has a reduced light energy loss when passing through a color filter (CF) due to the presence of white sub-pixels, the brightness of the screen can be increased when the backlight brightness is the same, or the backlight can be reduced when the brightness of the screen is the same. Brightness thus reduces power consumption; but the true color display is still RGB three primary colors, the gamut range is not expanded; and compared to Figure 2, the actual resolution of the picture is reduced.
- CF color filter
- FIG. 4 is a schematic diagram of another conventional pixel array using RGBW sub-pixels.
- the pixel array Although the column has a white sub-pixel, the light energy lost by the backlight when passing through the CF is reduced, and the brightness of the screen can be increased when the brightness of the backlight is the same, or the brightness of the backlight can be reduced when the brightness of the picture is the same to reduce power consumption.
- the true color display is still the RGB three primary colors, and the gamut range has not been expanded.
- the present invention provides a liquid crystal display panel and a driving apparatus and method thereof, which can improve backlight utilization efficiency and color rendering capability.
- a liquid crystal display panel driving method comprising: decomposing the driving signal when a signal type of the received driving signal is not an RGBWY driving signal; according to the liquid crystal display The pixel array structure of the panel outputs the decomposed driving signal; when the signal type of the received driving signal is the RGBWY driving signal, the driving signal is directly output according to the pixel array structure of the liquid crystal display panel.
- the step of decomposing the driving signal includes: after performing color mixing processing on the received RGB driving signal, A yellow component and a white component are obtained; based on the yellow component and the white component, a drive signal of the RGBWY signal type is obtained.
- the step of decomposing the driving signal includes: when the driving signal is an RGB driving signal, performing color mixing processing on the RGB driving signal to obtain a first yellow component; Obtaining a first red component, a first green component, and a first blue component according to the first yellow component and an initial red component, an initial green component, and an initial blue component of the RGB driving signal; The red component, the first green component, the first blue component, and the first yellow component are subjected to color mixing processing to obtain a white component; according to the white component, the first red component, the first green component, the first blue component, and the first The yellow component obtains a second red component, a second green component, a second blue component, and a second yellow component.
- the step of decomposing the driving signal comprises: when the driving signal is an RGB driving signal, performing color mixing processing on the RGB driving signal to obtain a white component; Obtaining a first red component, a first green component, and a first blue component according to the white component and an initial red component, an initial green component, and an initial blue component of the RGB driving signal; for the first red component And performing a color mixing process on the first green component and the first blue component to obtain a yellow component; obtaining a second red component and a second green according to the yellow component, the first red component, the first green component, and the first blue component Component, second blue component.
- the step of decomposing the driving signal includes: after performing color mixing processing on the RGBW driving signal, A yellow component is obtained; based on the yellow component, a drive signal of the RGBWY signal type is obtained.
- the step of decomposing the driving signal comprises: when the driving signal is an RGBW driving signal, an initial red component, an initial green component, and The initial blue component is subjected to color mixing processing to obtain a yellow component; and based on the yellow component and the initial red component, the initial green component, and the initial blue component, a first red component, a first green component, and a first blue component are obtained.
- the step of decomposing the driving signal comprises: when the driving signal is an RGBW driving signal, performing color mixing processing on the RGBW driving signal to obtain a yellow component;
- the yellow component and the initial red component, the initial green component, the initial blue component, and the initial white component of the RGBW driving signal obtain a first red component, a first green component, a first blue component, and a first white component .
- the step of decomposing the driving signal comprises: performing color mixing processing on the RGBY driving signal to obtain A white component; based on the white component, a drive signal of the RGBWY signal type is obtained.
- the step of decomposing the driving signal comprises: when the driving signal is an RGBY driving signal, an initial red component, an initial green component, an initial to the RGBY driving signal
- the blue component is subjected to color mixing processing to obtain a white component; and based on the white component and the initial red component, the initial green component, and the initial blue component, a first red component, a first green component, and a first blue component are obtained.
- the step of decomposing the driving signal comprises: When the driving signal is an RGBY driving signal, performing color mixing processing on the RGBY driving signal to obtain a white component; and determining an initial red component, an initial green component, and an initial blue in the white component and the RGBY driving signal.
- the color component, the initial yellow component obtains a first red component, a first green component, a first blue component, and a first yellow component.
- the step of outputting the decomposed driving signal or the output driving signal according to the liquid crystal display panel pixel array structure includes: when the liquid crystal display panel pixel array structure is a five-tile structure When a pixel includes one red sub-pixel, one green sub-pixel, one blue sub-pixel, one yellow sub-pixel, and two white sub-pixels, the red component, the green component, the blue component, and the yellow of the driving signal of the RGBWY signal type are output.
- the liquid crystal display panel pixel array structure is a five-tile structure and one pixel includes one red sub-pixel, one green sub-pixel, one blue sub-pixel, one yellow sub-pixel, and one white sub-pixel
- the red component, the green component, the blue component, the yellow component, and the white component of the drive signal component of the RGBWY signal type are output.
- a liquid crystal display panel driving apparatus includes a gate driving integrated circuit unit, a data driving integrated circuit unit, and a clock controller, and the apparatus further includes: a driving signal processing unit.
- the driving signal processing unit includes: means for decomposing the driving signal when the signal type of the received driving signal is not an RGBWY driving signal, according to the liquid crystal display a panel pixel array structure, which outputs a decomposed driving signal; and a component for outputting a driving signal according to the pixel array structure of the liquid crystal display panel when the signal type of the received driving signal is an RGBWY driving signal.
- the driving signal processing unit includes: means for performing a color mixing process, performing color mixing processing on the received RGB driving signals to obtain a yellow component and a white component; and obtaining an RGBWY signal according to the yellow component and the white component. a type of driving signal; or, after performing color mixing processing on the RGBW driving signal, obtaining a yellow component; obtaining a driving signal of the RGBWY signal type according to the yellow component; or performing color mixing processing on the RGBY driving signal , a white component is obtained; according to the white component, a driving signal of the RGBWY signal type is obtained.
- the driving signal processing unit includes: configured to: when the liquid crystal display panel pixel array structure is a five-tile structure and one pixel includes one red sub-pixel, one green sub-pixel, one blue sub-pixel, and one yellow a sub-pixel and two white sub-pixels, a component that outputs a red component, a green component, a blue component, a yellow component, and a half of a white component of a driving signal of the RGBWY signal type; when the liquid crystal display panel pixel array structure is five Tile structure and one pixel included A red sub-pixel, a green sub-pixel, a blue sub-pixel, a yellow sub-pixel, and a white sub-pixel output a red component, a green component, a blue component, a yellow component, and a white component of a driving signal of the RGBWY signal type Parts.
- a liquid crystal display panel including a data line and a gate line is provided, and the liquid crystal display panel further includes the liquid crystal display panel driving device as described above.
- the data lines of the liquid crystal display panel are connected to the data driving integrated circuit unit, and the number is 5 m; the gate line and the gate The driving integrated circuit units are connected, and the number is n, where m and n are positive integers.
- the voltage polarity of the data line is changed in a column flip mode.
- FIG. 1 is a schematic structural view of a conventional liquid crystal display panel
- FIG. 2 is a schematic diagram of a pixel array of three sub-pixels of RGB
- FIG. 3 is a schematic diagram of a pixel array of an existing RGBW sub-pixel
- FIG. 4 is a schematic diagram of another pixel array of an existing RGBW sub-pixel
- FIG. 5 is a schematic flow chart of a method for driving a liquid crystal display panel according to an embodiment of the present invention
- FIG. 6a and FIG. 6b are schematic diagrams showing two pixel arrays when a pixel of a liquid crystal display panel includes six sub-pixels according to an embodiment of the invention
- FIG. 7a and 7b are schematic diagrams showing two pixel arrays when a liquid crystal display panel pixel includes five sub-pixels according to an embodiment of the invention.
- FIGS. 6a and 6b are schematic structural views of a liquid crystal display panel having the pixel array of FIGS. 6a and 6b according to an embodiment of the present invention
- FIG. 9 is a schematic structural view of a liquid crystal display panel having the pixel array of FIGS. 7a and 7b according to an embodiment of the present invention
- 10a and FIG. 10b are schematic diagrams showing voltage polarities of the liquid crystal display panel before and after the data line array is reversed according to the embodiment of the present invention
- Fig. 11a and Fig. lib are diagrams showing the voltage polarities of the liquid crystal display panel before and after the data line inversion according to the embodiment of the present invention shown in Fig. 9.
- the basic idea of the present invention is: when the signal type of the received driving signal is not the RGBWY driving signal, decomposing the driving signal; and outputting the decomposed driving signal according to the pixel array structure of the liquid crystal display panel
- the signal type of the received driving signal is an RGBWY driving signal
- the driving signal is directly output according to the pixel array structure of the liquid crystal display panel; wherein the RGBWY driving signal includes a red component, a green component, and a blue
- FIG. 5 is a flow chart showing a method of driving a liquid crystal display panel according to an embodiment of the present invention. As shown in FIG. 5, the method includes a step 501, a step 502, and a step 503.
- the drive signal is decomposed.
- the signal type that is not the RGBWY driving signal includes an RGB driving signal, an RGBW driving signal, an RGBY driving signal, and the like; wherein, the RGB driving signal is a driving signal including a red component, a green component, and a blue component; RGBW The driving signal is a driving signal including a red component, a green component, a blue component, and a white component; and the RGBY driving signal is a driving signal including a red component, a green component, a blue component, and a yellow component.
- the driving signal is decomposed as follows: performing color mixing processing on the received RGB driving signal to obtain a yellow component and a white component; The yellow component and the white component are described to obtain a driving signal of the RGBWY signal type.
- the driving signal is decomposed as follows: After the color mixing processing is performed on the RGBW driving signal, a yellow component is obtained; and according to the yellow component, a driving signal of an RGB WY signal type is obtained.
- the driving signal is decomposed as follows: performing color mixing processing on the RGBY driving signal to obtain a white component; according to the white component, A drive signal of the RGBWY signal type is obtained.
- the driving signal can be decomposed in the following manner to obtain an RGBWY driving signal:
- the driving signal is an RGB driving signal, performing color mixing processing on the RGB driving signal to obtain a first yellow component Y1; according to the first yellow component Y1 and an initial red component R0 in the RGB driving signal
- the initial green component G0 and the initial blue component B0 obtain the first red component R1, the first green component G1, and the first blue component B1;
- the first green component G1, the first blue component B1, and the first yellow component Y1 perform color mixing processing to obtain a white component W2; according to the white component W2, the first red component R1, the first green component G1, and the first blue
- the component B1 and the first yellow component Y1 are processed to obtain a second red component R2, a second green component G2, a second blue component
- the driving signal is an RGB driving signal
- performing color mixing processing on the RGB driving signal to obtain a white component W1
- white component W1 and the initial red component R0 in the RGB driving signal initial The green component G0 and the initial blue component B0 obtain the first red component R1, the first green component G1, and the first blue component B1;
- B1 B0-B,, B, is the blue component contained in W1;
- the first blue component B1 performs color mixing processing to obtain a yellow component Y1; according to the yellow component Y1, the first red component R1, the first green component G1, and the first blue component B1, the second red color is processed.
- the driving signal is an RGBW driving signal, performing color mixing processing on the RGBW driving signal to obtain a yellow component Y1; according to the yellow component Y1, an initial red component R0, an initial green component G0, and an initial blue component B0
- the driving signal is an RGB Y driving signal, performing color mixing processing on the initial red component R0, the initial green component G0, and the initial blue component B0 in the RGB Y driving signal to obtain a white component W1;
- ⁇ 1 ⁇ 0- ⁇ '
- B' is the blue component contained in W1.
- the driving signal is an RGBY driving signal, performing color mixing processing on the RGBY driving signal to obtain a white component W1; according to the white component W1, the initial red component R0, the initial green component G0, and the initial blue color
- the processing of the step 501 can be performed on the driving signal that does not satisfy the condition until a driving signal that satisfies the pixel array structure of the liquid crystal display panel is obtained.
- the decomposed driving signal is output according to the pixel array structure of the liquid crystal display panel.
- the pixel array structure of the liquid crystal display panel is a pixel array structure as shown in FIG. 6a or FIG. 6b, that is, the pixel array is a five-tile matrix structure and each pixel includes six sub-pixels. : a red sub-pixel R, a green sub-pixel 0, a blue sub-pixel ⁇ a yellow sub-pixel Y and two white sub-pixels W, performing step 502 to output a red component, a green component of the driving signal of the RGBWY signal type, Blue component, yellow component, and half of the white component.
- the data lines of the liquid crystal display panel may be directly output, or the corresponding coefficients may be proportionally corrected according to a gamma curve required by different users, and then output to the data lines.
- R2, G2, B2, W2/2, Y2 may be output to the data line
- R2, G2, B2, Wl/2, Yl may be output to the data line
- Rl, Gl, Bl, W/2, Yl are output to the data line
- the driving signal is decomposed by the fourth method of step 501
- Rl, Gl, Bl, Wl/2, Yl may be output to the The data line
- R1, G1, Bl, Wl/2, Y may be output to the data line
- Y may be output to the data line
- the sixth step 501 when the drive signal is decomposed in the first method of step 501, R2, G2, B2, W2/2, Y2 may be output to the data line; when the second type of step 501 is used When the driving signal is decomposed, R2,
- the pixel array structure of the liquid crystal display panel is a pixel array structure as shown in FIG. 7a or FIG. 7b, that is, the pixel array is a five-tile matrix structure and each pixel includes five sub-pixels: one red sub-pixel R, one green
- a blue sub-pixel ⁇ a yellow sub-pixel Y and a white sub-pixel W step 502 is performed to output a red component, a green component, a blue component, a yellow component, and a white component of the driving signal of the RGBWY signal type. .
- the data lines of the liquid crystal display panel may be directly output, or the corresponding coefficients may be proportionally corrected according to gamma curves required by different users, and then output to the data lines.
- R2, G2, B2, W2, Y2 may be output to the data line
- R2, G2, B2, W1, Yl may be output to the data line
- Rl, Gl, Bl, W, Yl is output to the data line
- Rl, Gl, Bl, Wl, Yl are output to the data line
- Rl, Gl, Bl, Wl, Yl are output to the data line
- Rl, Gl, Bl, Wl, Y are output to the data line
- Rl, Gl, Bl, Wl, Y may be output to the data line
- Rl, Gl, Bl, Wl, Y may be output to the data line
- Rl, Gl, Bl, Wl, Y may be output to the data line
- the driving signal processing unit may be independently present with respect to the clock controller or the data driving integrated circuit unit; when the driving signal processing unit is independently present, it may be directly connected to the driving signal source of the system, and receive the driving signal source.
- the signal, after decomposing the driving signal outputs a driving signal to the data driving integrated circuit unit according to the process described in the above step 502.
- the drive signal processing unit can be internal to the clock controller or data drive integrated circuit unit.
- the driving signal sent by the driving signal source of the system can be directly received, processed according to the above step 502, and then processed by other functional units of the clock controller, and then output to the data driving.
- the integrated circuit unit can also be processed by other functional units of the clock controller, and then processed by the driving signal processing unit according to the above step 502, and then sent to the data driving integrated circuit unit.
- the driving signal processing unit is built in the data driving integrated circuit unit, the driving signal sent by the clock controller can be directly received, and processed according to the above step 502, and then processed by other functional units of the data driving integrated circuit unit.
- the corresponding coefficient is proportionally corrected and then output to the data line; or the other functional units of the data driving integrated circuit unit may be first processed.
- the driving signal processing unit processes the data according to the above step 502, and then outputs to the data line, or corrects the corresponding coefficient according to a gamma curve required by different users, and then outputs the corresponding coefficient to the data line.
- the corresponding coefficients are corrected proportionally by the gamma curve required by different users before being output to the data line in order to give the user a better sensory experience, and the display using the gamma curve correction to make the human brain perceive The brightness of the output changes to a linear curve, which improves picture quality.
- Figures 6a and 6b, 7a and 7b show a preferred pixel array structure.
- each pixel includes 6 sub-pixels: one red sub-pixel 1, one Green sub-pixel G, one blue sub-pixel ⁇ one yellow sub-pixel Y and two white sub-pixels W.
- each pixel includes 5 sub-pixels: one red sub-pixel 1, one green sub-pixel G, one blue sub-pixel ⁇ one yellow sub-pixel Y, and one white sub-pixel W.
- the difference in the pixel array structure shown in FIGS. 6a and 6b, 7a, and 7b is that the number of white sub-pixels W is different because the effect of the white sub-pixel W on changing the display color of the entire pixel is almost zero.
- the flexible setting of the number of white sub-pixels can be preferably performed;
- the white sub-pixel W is located at the middle of the other four sub-pixels, and is respectively associated with the red R, green G, blue B, and yellow Y sub-pixels.
- the white sub-pixel W it is preferable to set the white sub-pixel W to the same pixel at a central position surrounded by other sub-pixels, which is advantageous for reducing the interference of the white sub-pixel W on other sub-pixels, thereby Restore images more realistically.
- One pixel in the currently produced liquid crystal display panel is composed of three sub-pixels of RGB.
- each sub-pixel is rectangular and has an aspect ratio of 3:1.
- the aspect ratio of each sub-pixel may be preferably set to 3:2, and the white sub-pixel W and the red sub-pixel R have the same width, or may be used. Other proportional relationships are not described here.
- the red R, green G, blue B, and yellow Y sub-pixels are in the same pattern, and the pattern is a combination of a rectangle and a right-angled trapezoid, and the ratio of the length to the width of the rectangle is 8:3, trapezoidal
- the ratio of the upper base to the lower base is 8:3, and the ratio of the upper base to the high is 8:5;
- the white sub-pixel W is square, and the ratio of the side length to the upper base of the right-angled trapezoid forming other sub-pixels is 8:7.
- the ratio of the upper base to the lower base is 9:7, and the ratio of the upper base to the high is 1. :1 ;
- the white sub-pixel W is square, and the ratio of the side length to the upper base of the right-angled trapezoid forming other sub-pixels is 2:3, and of course, other proportional relationships can be used.
- the method may further include: Step 503: When the signal type of the received driving signal is an RGBWY driving signal, directly output a driving signal according to the liquid crystal display panel pixel array structure.
- the present invention also provides a driving device for a liquid crystal display panel, comprising a gate driving integrated circuit unit, a data driving integrated circuit unit and a clock controller; the device further comprising a driving signal processing unit, wherein the driving signal processing unit
- the device includes: a component for decomposing the driving signal when the signal type of the received driving signal is not an RGBWY driving signal, and outputting the decomposed driving signal according to the pixel array structure of the liquid crystal display panel; And a component for outputting a driving signal directly according to an array structure of the liquid crystal display panel pixels when the signal type of the received driving signal is an RGBWY driving signal; wherein, the signal type not including the RGBWY driving signal includes RGB Drive signal, RGBW drive signal, RGBY drive signal, etc.
- the driving signal processing unit includes: means for performing a color mixing process, performing color mixing processing on the received RGB driving signals to obtain a yellow component and a white component;
- the white component gives a drive signal of the RGBWY signal type.
- the driving signal processing unit includes: means for performing a color mixing process, when the driving signal is an RGB driving signal, performing color mixing processing on the RGB driving signal to obtain a first yellow component. Y1; obtaining a first red component R1, a first green component G1, and a first blue according to the first yellow component Y1 and an initial red component R0, an initial green component G0, and an initial blue component B0 of the RGB driving signal.
- the driving signal processing unit includes: means for performing a color mixing process, when the driving signal is an RGB driving signal, performing color mixing processing on the RGB driving signal to obtain a white component. W1; obtaining a first red component R1, a first green component G1, and a first blue component according to the white component W1 and an initial red component R0, an initial green component G0, and an initial blue component B0 of the RGB driving signal.
- the driving signal processing unit includes: means for performing a color mixing process, after performing color mixing processing on the RGBW driving signal, obtaining a yellow component; and obtaining RGB WY according to the yellow component.
- Signal type drive signal is
- the driving signal processing unit includes: means for performing a color mixing process, when the driving signal is an RGBW driving signal, an initial red component in the RGBW driving signal R0, the initial green component G0, and the initial blue component B0 perform color mixing processing to obtain a yellow component Y1; according to the yellow component Y1, the initial red component R0, the initial green component G0, and the initial blue component B0, the processing is first.
- R1 R1
- R1 R1
- G1 G0-G'
- G' is in Y1 Containing the green component
- ⁇ 1 ⁇ 0- ⁇ '
- B' is the blue component contained in Yl.
- the driving signal processing unit includes: means for performing a color mixing process, when the driving signal is an RGBW driving signal, performing color mixing processing on the RGBW driving signal to obtain a yellow component.
- Y1 means for performing a color mixing process, when the driving signal is an RGBW driving signal, performing color mixing processing on the RGBW driving signal to obtain a yellow component.
- Y1 according to the yellow component Y1, the initial red component R0, the initial green component G0, the initial blue component B0, and the initial white component W0, the first red component R1, the first green component G1, and the first blue are processed.
- the driving signal processing unit includes: means for performing a color mixing process, after performing color mixing processing on the RGBY driving signal, obtaining a white component; and obtaining an RGB WY signal type according to the white component Drive signal.
- the driving signal processing unit includes: means for performing a color mixing process, when the driving signal is an RGB Y driving signal, the RGBY driving letter
- the initial red component R0, the initial green component G0, and the initial blue component B0 in the number are subjected to color mixing processing to obtain a white component W1; according to the white component W1, the initial red component R0, the initial green component GO, and the initial blue.
- the driving signal processing unit includes: means for performing a color mixing process, when the driving signal is an RGB ⁇ driving signal, performing color mixing processing on the RGBY driving signal to obtain white
- the component W1 is processed to obtain the first red component R1, the first green component G1, and the first blue according to the white component W1, the initial red component R0, the initial green component G0, the initial blue component B0, and the initial yellow component Y0.
- the driving signal processing unit includes: when the pixel array structure of the liquid crystal display panel is two pixel array structures shown in FIG. 6a or 6b, that is, the pixel array is A five-tile matrix structure and each pixel includes six sub-pixels: one red sub-pixel 1, one green sub-pixel 0, one blue sub-pixel ⁇ one yellow sub-pixel Y and two white sub-pixels W, output RGBWY signal
- a component of a red component, a green component, a blue component, a yellow component, and a half of a white component of a type of driving signal may be specifically output to a data line of the liquid crystal display panel, or may be scaled according to a gamma curve required by different users. The corresponding coefficients are then output to the data line.
- the driving signal processing unit includes: when the pixel array structure of the liquid crystal display panel is two pixel array structures shown in FIG. 7a or FIG. 7b, that is, the pixel array is five A tile matrix structure and each pixel contains 5 sub-pixels: a red sub-pixel 1, a green sub-pixel 0, a blue sub-pixel ⁇ a yellow sub-pixel Y and a white sub-pixel W, output RGBWY signal type drive
- the components of the red component, the green component, the blue component, the yellow component, and the white component of the signal may be specifically output to the data line of the liquid crystal display panel, or the corresponding coefficient may be corrected according to the gamma curve required by different users. Output to the data line.
- Figures 6a and 6b, 7a and 7b show a preferred pixel array structure.
- each pixel includes six sub-pixels: a red sub-pixel 1, a green sub-pixel G, a blue sub-pixel ⁇ a yellow sub-pixel Y and two white sub-pixels W.
- each pixel contains 5 sub-pixels: a red sub-pixel 1, a green sub-pixel G, a blue sub-pixel ⁇ a yellow sub-pixel Y and a white sub-pixel W.
- the difference in the pixel array structure shown in FIGS. 6a and 6b, 7a, and 7b is that the number of white sub-pixels W is different because the effect of the white sub-pixel W on changing the display color of the entire pixel is almost zero.
- the flexibility of the number of white sub-pixels can be preferably performed. Settings; of course, the white sub-pixels W set to two can be changed to sub-pixels of other colors according to personal preference and user requirements.
- the white sub-pixels W are located at the middle of the other four sub-pixels, and are respectively associated with red R, green G, blue B, and yellow. Y sub-pixels are connected, and a relatively symmetrical pixel array structure can be used to obtain a better color mixing effect.
- the white sub-pixel W is preferably disposed in the same pixel at a central position surrounded by other sub-pixels, which is advantageous for reducing interference of the white sub-pixel W with other sub-pixels. , thereby more realistically restoring the image.
- One pixel in a liquid crystal display panel currently used for mass production is composed of three sub-pixels of RGB, and when RGB sub-pixels are horizontally arranged, each sub-pixel is rectangular and has an aspect ratio of 3:1.
- the aspect ratio of each sub-pixel may be preferably set to 3:2.
- the white sub-pixel W and the red sub-pixel R have the same width, and may of course be used. Other proportional relationships are not described here.
- the red R, green G, blue B, and yellow Y sub-pixels are in the same pattern, and the pattern is a combination of a rectangle and a right-angled trapezoid, and the ratio of the length to the width of the rectangle is 8:3, trapezoidal
- the ratio of the upper base to the lower base is 8:3, and the ratio of the upper base to the high is 8:5; and the white sub-pixel W is square, and the ratio of the side length to the other sub-pixels is 8:7.
- the red 1, green G, blue B, and yellow Y sub-pixels of FIG. 6b and FIG. 7b are congruent, the ratio of the upper base to the lower bottom is 9:7, and the ratio of the upper base to the high is 1. :1 ;
- the white sub-pixel W is square, and the ratio of the side length to the other sub-pixels is 2:3.
- other proportional relationships can be used.
- the above-mentioned driving signal processing unit may exist independently with respect to the clock controller or the data driving integrated circuit unit, or may be built in a clock controller or a data driving integrated circuit. In the unit.
- the driving signal processing unit When the driving signal processing unit is independently existed, it may be directly connected to the driving signal source of the system, and receive the driving signal sent by the driving signal source, and processed as described above and output to the clock controller; or may be located in the clock control Between the device and the data driving integrated circuit unit, a driving signal sent by the clock controller is received, and the driving signal is processed as above and output to the data driving integrated circuit unit.
- the drive signal processing unit can also be built into the clock controller or the data drive integrated circuit unit.
- the clock controller When built in the clock controller, it can directly receive the driving signal from the driving signal source of the system. After processing as above, it can be processed by the remaining functional units of the clock controller and output to the data driving integrated circuit unit. After the other functional units of the clock controller perform related processing, the driving signal processing unit is processed as described above, and then sent to the data driving integrated circuit unit; when built in the data driving integrated circuit unit, the clock controller can directly receive the clock controller.
- the driving signal is processed as described above, and then processed by other functional units of the data driving integrated circuit unit, and then output to the data line or proportionally corrected according to different user requirements gamma curve, and then output to the data.
- the line may also be processed by other functional units of the data driving integrated circuit unit, and then processed by the driving signal processing unit as described above, output to the data line or proportionally corrected according to different user requirements gamma curve After the coefficient Out to the data lines.
- the gamma curve required by different users is used to correct the corresponding coefficients before being output to the data line in order to bring a better sensory experience to the user, and the gamma curve is used to correct the brightness of the display output perceived by the human brain. Change to a linear curve to improve the screen shield.
- the present invention also provides a liquid crystal display panel, the liquid crystal display panel specifically comprising: a data line, a gate line, and a liquid crystal display panel driving device as described above.
- Fig. 8 shows the structure of a liquid crystal display panel having the pixel array of Figs. 6a and 6b
- Fig. 9 shows the structure of the liquid crystal display panel having the pixel array of Figs. 7a and 7b.
- the display panels in FIGS. 8 and 9 are each schematically represented by a liquid crystal display panel having a resolution of mxn, wherein the driving device of the liquid crystal display panel included in FIGS. 8 and 9 is a driving signal processing unit
- the order, shape, and size of the sub-pixels in the pixel array of the liquid crystal display panel may be adjusted accordingly according to user requirements.
- the resolution of the liquid crystal display panel is mxn
- the data lines of the liquid crystal display panel are connected to the data driving integrated circuit unit, and the number is 5 m, as shown in S1 to S5m in FIG. 8 and FIG. 9;
- the pole line is connected to the gate drive integrated circuit unit, and the number is n, as shown by G1 to Gn in FIGS. 8 and 9, wherein m and n are positive integers.
- the polarity of the data line voltage may be inverted by using a column inversion manner. Specifically, referring to the voltage polarities before and after the data line column flip shown in FIG. 10a and FIG. 10b, FIG. 11a and FIG.
- the polarity of S1 S5 can be: +, +, -, +, +; or -, -, +, -, -.
- the column flip refers to the same voltage polarity on the same data line of the data driving integrated circuit unit under the Y frame, and the voltage and Y frame of the same data line of the data driving integrated circuit unit under the Y+1 frame screen.
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Description
液晶显示面板及其驱动装置、 方法
技术领域 本发明涉及液晶显示领域, 尤其涉及一种液晶显示面板及其驱动装置和 方法。 背景技术 目前液晶显示面板的架构如图 1所示。 LCD模组由分布着子像素的显示 面板(Pixel Array ) 4、 驱动子像素源极的带有数据线的数据驱动集成电路 ( Source Driver IC ) 3、 驱动子像素栅极的带有栅极线的栅极驱动集成电路 ( Gate Driver IC ) 2以及背光模块 ( Backlight Unit ) 5组成, 其中数据驱动集 成电路( Source Driver IC ) 3和栅极驱动集成电路 ( Gate Driver IC ) 2与时 钟控制器( Timing Controller ) 1连接。
图 2示出了现有釆用红、绿、 蓝(RGB )三个子像素的像素阵列示意图, 每个像素由 RGB三个子像素组成。 现阶段, 应用 RGB三原色技术并不能全 面还原自然界人眼所能感知的色彩, 传统三原色在黄色和蓝绿色领域的色彩 表现能力不足, 研究人员一直致力于色彩表现能力的突破提升。 由于液晶每 个像素由 RGB三个子像素组成, 通过液晶分子后依靠 RGB像素组合成任意 颜色光, 因此 RGB三原色越鲜艳, 那么可以表示的颜色范围就越广; 反之, 三原色越不鲜艳, 所能显示的颜色范围就越窄, 因为其无法显示比三原色更 鲜艳的颜色。 目前液晶显示面板的模组架构中,需要通过多层散射和折射后, 才用于显示, 如此, 背光中真正用于显示的部分的比例会 4艮小。
图 3是现有的一种釆用五片瓦(Pentile )像素排列且釆用红、 绿、 蓝、 白 (RGBW )子像素的像素阵列示意图。 该像素阵列虽然由于白色子像素的 存在, 使得背光在经过彩色滤光片 ( Color Filter, CF ) 时损耗的光能减少, 可以在背光亮度相同时增加画面亮度, 或者在画面亮度相同时降低背光亮度 从而减少功耗; 但真正用于色彩显示的仍然是 RGB 三原色, 色域范围并没 有得到扩展; 且与图 2相比, 画面的实际分辨率有所降低。
图 4是现有的另一种釆用 RGBW子像素的像素阵列示意图。 该像素阵
列虽然由于白色子像素的存在, 使得背光在经过 CF时损耗的光能减少, 可 以在背光亮度相同时增加画面亮度, 或者在画面亮度相同时降低背光亮度从 而减少功耗。但同图 3所示的像素阵列一样,真正用于色彩显示的仍然是 RGB 三原色, 色域范围并没有得到扩展。
现有还存在一种釆用红、 绿、 蓝、 黄(RGBY ) 四个子像素的像素阵列 示意。 该像素阵列虽然通过在红、 蓝、 绿三色的基础上加入黄色, 来弥补黄 色和蓝绿色的表现力不足, 可以更加生动地再现红、 绿、 蓝传统三原色技术 难以表现的色彩, 拉伸了蓝色的表现色域, 提高了蓝色、 绿色和黄色的表现 力, 更能够有效的使用黄色波长, 实现更广阔的色域。 但 CF的散射与折射 作用, 使得背光的有效利用率仍然不高。 发明内容 有鉴于此, 本发明提供一种液晶显示面板及其驱动装置和方法, 能够提 高背光利用率和色彩表现能力。
根据本发明的实施例,提供一种液晶显示面板驱动方法,所述方法包括: 当接收到的驱动信号的信号类型不为 RGBWY驱动信号时,对所述驱动信号 进行分解;根据所述液晶显示面板的像素阵列结构,输出分解后的驱动信号; 当接收到的驱动信号的信号类型为 RGBWY驱动信号时,直接根据所述液晶 显示面板像素阵列结构, 输出驱动信号。
在本发明的一个实施例中, 所述当接收到的驱动信号的信号类型不为 RGBWY驱动信号时, 对所述驱动信号进行分解的步骤包括: 对接收到的 RGB驱动信号进行混色处理后,得到黄色分量和白色分量; 根据所述黄色分 量和白色分量, 得到 RGBWY信号类型的驱动信号。
在本发明的另一实施例中, 所述对所述驱动信号进行分解的步骤包括: 当所述驱动信号为 RGB驱动信号时, 对所述 RGB驱动信号进行混色处理, 得到第一黄色分量; 根据所述第一黄色分量和所述 RGB驱动信号中的初始 红色分量、 初始绿色分量、 初始蓝色分量, 得到第一红色分量、 第一绿色分 量、 第一蓝色分量; 对所述第一红色分量、 第一绿色分量、 第一蓝色分量以 及第一黄色分量进行混色处理, 得到白色分量; 根据所述白色分量、 第一红 色分量、 第一绿色分量、 第一蓝色分量以及第一黄色分量, 得到第二红色分 量、 第二绿色分量、 第二蓝色分量和第二黄色分量。
在本发明的另一实施例中, 所述对所述驱动信号进行分解的步骤包括: 当所述驱动信号为 RGB驱动信号时, 对所述 RGB驱动信号进行混色处理, 得到白色分量; 才艮据所述白色分量和所述 RGB驱动信号中的初始红色分量、 初始绿色分量、 初始蓝色分量, 得到第一红色分量、 第一绿色分量、 第一蓝 色分量; 对所述第一红色分量、第一绿色分量、第一蓝色分量进行混色处理, 得到黄色分量; 根据所述黄色分量、 第一红色分量、 第一绿色分量以及第一 蓝色分量, 得到第二红色分量、 第二绿色分量、 第二蓝色分量。
在本发明的另一实施例中, 所述当接收到的驱动信号的信号类型不为 RGBWY驱动信号时, 对所述驱动信号进行分解的步骤包括: 对所述 RGBW 驱动信号进行混色处理后,得到黄色分量;根据所述黄色分量,得到 RGBWY 信号类型的驱动信号。
在本发明的另一实施例中, 所述对所述驱动信号进行分解的步骤包括: 当所述驱动信号为 RGBW驱动信号时, 对所述 RGBW驱动信号中的初始红 色分量、 初始绿色分量和初始蓝色分量进行混色处理, 得到黄色分量; 根据 所述黄色分量和所述初始红色分量、 初始绿色分量、 初始蓝色分量, 得到第 一红色分量、 第一绿色分量、 第一蓝色分量。
根据本发明的另一实施例, 所述对所述驱动信号进行分解的步骤包括: 当所述驱动信号为 RGBW驱动信号时, 对所述 RGBW驱动信号进行混色处 理, 得到黄色分量; 才艮据所述黄色分量和所述 RGBW驱动信号中的初始红 色分量、 初始绿色分量、 初始蓝色分量、 初始白色分量, 得到第一红色分量、 第一绿色分量、 第一蓝色分量、 第一白色分量。
根据本发明的另一实施例, 所述当接收到的驱动信号的信号类型不为 RGBWY驱动信号时, 对所述驱动信号进行分解的步骤包括: 对所述 RGBY 驱动信号进行混色处理后,得到白色分量;根据所述白色分量,得到 RGBWY 信号类型的驱动信号。
根据本发明的另一实施例, 所述对所述驱动信号进行分解的步骤包括: 当所述驱动信号为 RGBY驱动信号时, 对所述 RGBY驱动信号中的初始红 色分量、 初始绿色分量、 初始蓝色分量进行混色处理, 得到白色分量; 根据 所述白色分量和所述初始红色分量、 初始绿色分量、 初始蓝色分量, 得到第 一红色分量、 第一绿色分量、 第一蓝色分量。
根据本发明的另一实施例, 所述对所述驱动信号进行分解的步骤包括:
当所述驱动信号为 RGBY驱动信号时, 对所述 RGBY驱动信号进行混色处 理, 得到白色分量; 才艮据所述白色分量和所述 RGBY驱动信号中的初始红色 分量、 初始绿色分量、 初始蓝色分量、 初始黄色分量, 得到第一红色分量、 第一绿色分量、 第一蓝色分量、 第一黄色分量。
根据本发明的另一实施例, 所述根据所述液晶显示面板像素阵列结构, 输出分解后的驱动信号或输出驱动信号的步骤包括: 当所述液晶显示面板像 素阵列结构为五片瓦结构且一个像素包括一个红色子像素、一个绿色子像素、 一个蓝色子像素、 一个黄色子像素和二个白色子像素时, 输出 RGBWY信号 类型的驱动信号的红色分量、 绿色分量、 蓝色分量、 黄色分量以及一半的白 色分量; 当所述液晶显示面板像素阵列结构为五片瓦结构且一个像素包括一 个红色子像素、 一个绿色子像素、 一个蓝色子像素、 一个黄色子像素和一个 白色子像素时,输出 RGBWY信号类型的驱动信号分的红色分量、绿色分量、 蓝色分量、 黄色分量以及白色分量。
另一方面, 根据本发明的实施例, 提供一种液晶显示面板驱动装置, 包 括栅极驱动集成电路单元、 数据驱动集成电路单元及时钟控制器, 所述装置 还包括: 驱动信号处理单元。 在本发明的一个实施例中, 所述驱动信号处理 单元包括: 用于当接收到的驱动信号的信号类型不为 RGBWY驱动信号时, 对所述驱动信号进行分解的部件, 根据所述液晶显示面板像素阵列结构, 输 出分解后的驱动信号; 以及用于当接收到的驱动信号的信号类型为 RGBWY 驱动信号时, 直接才艮据所述液晶显示面板像素阵列结构, 输出驱动信号的部 件。 可替换地, 所述驱动信号处理单元包括: 用于进行混色处理的部件, 对 接收到的 RGB驱动信号进行混色处理, 得到黄色分量和白色分量; 根据所 述黄色分量和白色分量, 得到 RGBWY信号类型的驱动信号; 或者, 对所述 RGBW驱动信号进行混色处理后, 得到黄色分量; 才艮据所述黄色分量, 得到 RGBWY信号类型的驱动信号; 或者, 对所述 RGBY驱动信号进行混色处理 后,得到白色分量;根据所述白色分量,得到 RGBWY信号类型的驱动信号。 可替换地, 所述驱动信号处理单元包括: 用于当所述液晶显示面板像素阵列 结构为五片瓦结构且一个像素包括一个红色子像素、 一个绿色子像素、 一个 蓝色子像素、 一个黄色子像素和二个白色子像素时, 输出 RGBWY信号类型 的驱动信号的红色分量、 绿色分量、 蓝色分量、 黄色分量以及一半的白色分 量的部件; 当所述液晶显示面板像素阵列结构为五片瓦结构且一个像素包括
一个红色子像素、 一个绿色子像素、 一个蓝色子像素、 一个黄色子像素和一 个白色子像素时,输出 RGBWY信号类型的驱动信号的红色分量、绿色分量、 蓝色分量、 黄色分量以及白色分量的部件。
另一方面,根据本发明的实施例,提供一种液晶显示面板, 包括数据线、 栅极线, 所述液晶显示面板还包括如上所述的液晶显示面板驱动装置。
在本发明的一个实施例中, 当所述液晶显示面板的分辨率为 mxn时, 所 述液晶显示面板的数据线与数据驱动集成电路单元相连接, 个数为 5m; 栅 极线与栅极驱动集成电路单元相连接, 个数为 n, 其中, m和 n为正整数。
在本发明的一个实施例中, 所述数据线的电压极性釆用列翻转方式进行 改变。
通过应用本发明, 当接收到的驱动信号不为 RGBWY时, 通过分解得到 RGBWY信号类型的驱动信号并进行输出, 所述驱动信号中的白色亚像素提 高背光的利用率, 增加画面亮度或降低背光功耗; 所述驱动信号中的黄色亚 像素增加色彩表现能力, 使画面更加绚丽多彩; 进一步釆用五片瓦矩阵结构 的像素阵列, 可以增加混色效果; 对液晶显示面板数据点的电极极性釆用列 翻转方式进行改变, 既能防止液晶老化, 还能降低功耗。 附图说明 图 1为现有的液晶显示面板的架构示意图;
图 2为现有釆用 RGB三个子像素的像素阵列示意图;
图 3为现有釆用 RGBW子像素的一种像素阵列示意图;
图 4为现有釆用 RGBW子像素的另一种像素阵列示意图;
图 5为根据本发明实施例的液晶显示面板驱动方法的实现流程示意图; 图 6a和图 6b为根据本发明实施例的液晶显示面板像素包含六个子像素 时的两种像素阵列示意图;
图 7a和图 7b为根据本发明实施例的液晶显示面板像素包含五个子像素 时的两种像素阵列示意图;
图 8为根据本发明实施例的具有图 6a和图 6b像素阵列的液晶显示面板 的结构示意图;
图 9为根据本发明实施例的具有图 7a和图 7b像素阵列的液晶显示面板 的结构示意图;
图 10a和图 10b为图 8所示的根据本发明实施例的液晶显示面板数据线 列翻转前后的电压极性示意图;
图 11a和图 lib为图 9所示的根据本发明实施例的液晶显示面板数据线 列翻转前后的电压极性示意图。
附图标记说明:
1-时钟控制器; 2-栅极驱动集成电路; 3-数据驱动集成电路; 4-显示面板; 5-背光模块。 具体实施方式 本发明的基本思想为: 当接收到的驱动信号的信号类型不为 RGBWY驱 动信号时,对所述驱动信号进行分解;根据所述液晶显示面板像素阵列结构, 输出分解后的驱动信号; 当接收到的驱动信号的信号类型为 RGBWY驱动信 号时, 直接才艮据所述液晶显示面板像素阵列结构, 输出驱动信号; 其中, 所 述 RGBWY驱动信号为包含有红色分量、 绿色分量、 蓝色分量、 白色分量以 及黄色分量的驱动信号。
为使本发明的目的、 技术方案和优点更加清楚明白, 以下将参照附图详 细描述本发明的实施例。
图 5示出了根据本发明实施例的液晶显示面板驱动方法的流程图。 如图 5所示, 所述方法包括步骤 501、 步骤 502和步骤 503。
在步骤 501中,当接收到的驱动信号的信号类型不为 RGBWY驱动信号 时, 对所述驱动信号进行分解。 这里, 所述不为 RGBWY驱动信号的信号类 型包括 RGB驱动信号、 RGBW驱动信号、 RGBY驱动信号等等; 其中, 所 述 RGB驱动信号为包含红色分量、绿色分量及蓝色分量的驱动信号; RGBW 驱动信号为包含红色分量、 绿色分量、 蓝色分量及白色分量的驱动信号; RGBY驱动信号为包含红色分量、 绿色分量、 蓝色分量及黄色分量的驱动信 号。
这里, 当驱动信号处理单元接收到的驱动信号的信号类型为 RGB驱动 信号时, 对所述驱动信号进行如下分解: 对接收到的 RGB驱动信号进行混 色处理, 得到黄色分量和白色分量; 根据所述黄色分量和白色分量, 得到 RGBWY信号类型的驱动信号。
当驱动信号处理单元接收到的驱动信号的信号类型为 RGBW驱动信号
时, 对所述驱动信号进行如下分解: 对所述 RGBW驱动信号进行混色处理 后,得到黄色分量;根据所述黄色分量,得到 RGB WY信号类型的驱动信号。
当驱动信号处理单元接收到的驱动信号的信号类型为 RGBY驱动信号 时, 对所述驱动信号进行如下分解: 对所述 RGBY驱动信号进行混色处理, 得到白色分量; 才艮据所述白色分量, 得到 RGBWY信号类型的驱动信号。
具体地, 可以通过如下几种方式对驱动信号进行分解, 得到 RGBWY驱 动信号:
1 ) 当所述驱动信号为 RGB驱动信号时, 对所述 RGB驱动信号进行混 色处理, 得到第一黄色分量 Y1; 根据所述第一黄色分量 Y1和所述 RGB驱 动信号中的初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0, 得到第 一红色分量 Rl、 第一绿色分量 Gl、 第一蓝色分量 B1 ; 其中, R1=R0 - R,, R,为 Yl中所含的红色分量; G1=G0 _ G,, G,为所述 Yl中所含的绿色分量, B1=B0 _ B,, B,为 Yl中所含的蓝色分量; 对所述第一红色分量 Rl、 第一绿 色分量 Gl、 第一蓝色分量 B1 以及第一黄色分量 Yl进行混色处理, 得到白 色分量 W2; 根据所述白色分量 W2、 第一红色分量 Rl、 第一绿色分量 Gl、 第一蓝色分量 B1 以及第一黄色分量 Yl , 处理得到第二红色分量 R2、 第二 绿色分量 G2、 第二蓝色分量 B2以及第二黄色分量 Y2; 其中, R2=R1 _ R" , R" 为 W2中所含的红色分量; G2=G1 - G" , G" 为 W2中所含的绿色分量; B2=B1 - B" , B" 为 W2中所含的蓝色分量; Y2=Y1 - Y" , Υ" 为 W2中所 含的黄色分量。
2 ) 当所述驱动信号为 RGB驱动信号时, 对所述 RGB驱动信号进行混 色处理, 得到白色分量 W1; 才艮据所述白色分量 W1和所述 RGB驱动信号中 的初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0, 得到第一红色分 量 Rl、 第一绿色分量 Gl、 第一蓝色分量 B1 ; 其中, R1=R0-R', R'为 W1 中所含的红色分量; G1=G0-G,, G,为 W1中所含的绿色分量; B1=B0-B,, B, 为 Wl中所含的蓝色分量; 对所述第一红色分量 Rl、 第一绿色分量 Gl、 第 一蓝色分量 B1进行混色处理, 得到黄色分量 Y1 ; 才艮据所述黄色分量 Yl、 第一红色分量 Rl、 第一绿色分量 Gl、 第一蓝色分量 B1 , 处理得到第二红色 分量 R2、 第二绿色分量 G2、 第二蓝色分量 B2; 其中, R2=R1-R" , R" 为 Y1中所含的红色分量; G2=G1-G" , G"为 Y1中所含的绿色分量; B2=B1-B" , B" 为 Y1中所含的蓝色分量。
3 ) 当所述驱动信号为 RGBW驱动信号时, 对所述 RGBW驱动信号中 的初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0进行混色处理, 得到黄色分量 Y1; 根据所述黄色分量 Yl、 初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0, 得到第一红色分量 Rl、 第一绿色分量 Gl、 第一蓝 色分量 B1 ; 其中, R1=R0-R,, R,为 Yl中所含的红色分量; G1=G0- G,, G, 为 Yl中所含的绿色分量; Β1=Β0-Β' , B'为 Y1中所含的蓝色分量。
4 ) 当所述驱动信号为 RGBW驱动信号时, 对所述 RGBW驱动信号进 行混色处理, 得到黄色分量 Y1; 根据所述黄色分量 Yl、 初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0、 初始白色分量 W0, 得到第一红色分 量 Rl、 第一绿色分量 Gl、 第一蓝色分量 Bl、 第一白色分量 W1; 其中, R1=R0-R,, R,为 Y1中所含的红色分量; G1=G0-G,, G,为 Y1中所含的绿色 分量; Β1=Β0-Β' , B'为 Y1 中所含的蓝色分量; W1=W0-W', W'为 Y1 中 所含的白色分量。
5 ) 当所述驱动信号为 RGB Y驱动信号时, 对所述 RGB Y驱动信号中的 初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0进行混色处理, 得 到白色分量 W1; 根据所述的白色分量 Wl、 初始红色分量 R0、 初始绿色分 量 G0、 初始蓝色分量 B0, 得到第一红色分量 Rl、 第一绿色分量 Gl、 第一 蓝色分量 B1; 其中, R1=R0-R,, R,为 Wl中所含的红色分量; G1=G0-G,, G'为 W1中所含的绿色分量; Β1=Β0-Β' , B'为 W1中所含的蓝色分量。
6 ) 当所述驱动信号为 RGBY驱动信号时, 对所述 RGBY驱动信号进行 混色处理, 得到白色分量 W1; 才艮据所述白色分量 Wl、 初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0、 初始黄色分量 Y0, 得到第一红色分量 R1、第一绿色分量 G1、第一蓝色分量 B1、第一黄色分量 Y1;其中, R1=R0-R' , R,为 W1 中所含的红色分量; G1=G0-G,, G,为 W1 中所含的绿色分量; Β1=Β0-Β' , B'为 Wl中所含的蓝色分量; Υ1=Υ0- Υ' , Y'为 Wl中所含的黄 色分量。
应当理解, 当所述液晶显示面板的像素阵列结构虽为五片瓦矩阵结构但 每个像素包含的子像素个数不为 5时, 例如当像素阵列结构为五片瓦矩阵结 构但每个像素包含 4个子像素(如 RGBW )的像素阵列结构时, 可以对不满 足条件的驱动信号进行类似步骤 501的处理, 直至得到满足所述液晶显示面 板的像素阵列结构的驱动信号。
经过上述步骤 501的处理之后, 在步骤 502, 根据所述液晶显示面板的 像素阵列结构, 输出分解后的驱动信号。
在本发明的实施例中, 当所述液晶显示面板的像素阵列结构为如图 6a 或图 6b所示的像素阵列结构时,即像素阵列为五片瓦矩阵结构且每个像素包 含 6个子像素: 一个红色子像素 R、 一个绿色子像素0、 一个蓝色子像素^ 一个黄色子像素 Y和二个白色子像素 W, 执行步骤 502以输出 RGBWY信 号类型的驱动信号的红色分量、 绿色分量、 蓝色分量、 黄色分量以及一半的 白色分量。 具体地, 可以直接输出给所述液晶显示面板的数据线, 或者根据 不同用户要求的伽马曲线(Gamma Curve )按比例校正相应的系数后再输出 给所述数据线。 例如, 当釆用步骤 501的第 1 )种方式对驱动信号进行分解 时, 可以将 R2、 G2、 B2、 W2/2、 Y2输出给所述数据线; 当釆用步骤 501 的第 2 )种方式对驱动信号进行分解时, 可以将 R2、 G2、 B2、 Wl/2、 Yl输 出给所述数据线; 当釆用步骤 501的第 3 )种方式对驱动信号进行分解时, 可以将 Rl、 Gl、 Bl、 W/2、 Yl输出给所述数据线; 当釆用步骤 501的第 4 ) 种方式对驱动信号进行分解时, 可以将 Rl、 Gl、 Bl、 Wl/2、 Yl 输出给所 述数据线; 当釆用步骤 501的第 5 )种方式对驱动信号进行分解时, 可以将 Rl、 Gl、 Bl、 Wl/2、 Y输出给所述数据线; 当釆用步骤 501 的第 6 )种方 式对驱动信号进行分解时, 可以将 Rl、 Gl、 Bl、 Wl/2、 Yl 输出给所述数 据线。
当所述液晶显示面板像素阵列结构为如图 7a或图 7b所示的像素阵列结 构时, 即像素阵列为五片瓦矩阵结构且每个像素包含 5个子像素: 一个红色 子像素 R、 一个绿色子像素0、 一个蓝色子像素^ 一个黄色子像素 Y和一 个白色子像素 W时, 执行步骤 502以输出 RGBWY信号类型的驱动信号的 红色分量、 绿色分量、 蓝色分量、 黄色分量以及白色分量。 具体地说, 可以 直接输出给所述液晶显示面板的数据线, 或者根据不同用户要求的伽马曲线 按比例校正相应的系数后再输出给所述数据线。 例如, 当釆用步骤 501的第 1 )种方式对驱动信号进行分解时, 可以将 R2、 G2、 B2、 W2、 Y2输出给所 述数据线; 当釆用步骤 501的第 2 )种方式对驱动信号进行分解时, 可以将 R2、 G2、 B2、 Wl、 Yl输出给所述数据线; 当釆用步骤 501的第 3 )种方式 对驱动信号进行分解时, 可以将 Rl、 Gl、 Bl、 W、 Yl输出给所述数据线; 当釆用步骤 501 的第 4 )种方式对驱动信号进行分解时, 可以将 Rl、 Gl、
Bl、 Wl、 Yl输出给所述数据线; 当釆用步骤 501的第 5 )种方式对驱动信 号进行分解时, 可以将 Rl、 Gl、 Bl、 Wl、 Y输出给所述数据线; 当釆用步 骤 501的第 6 )种方式对驱动信号进行分解时, 可以将 Rl、 Gl、 Bl、 Wl、 Yl输出给所述数据线。
其中, 上述驱动信号处理单元可以相对于时钟控制器或数据驱动集成电 路单元独立存在; 当所述驱动信号处理单元独立存在时, 可以直接与系统的 驱动信号源相连接, 接收所述驱动信号源发出的驱动信号。 在对所述驱动信 号进行分解后, 按照上述步骤 502所述的过程输出驱动信号至时钟控制器; 也可以位于时钟控制器与数据驱动集成电路单元之间, 接收所述时钟控制器 发出的驱动信号, 对所述驱动信号进行分解后按照上述步骤 502所述的过程 输出驱动信号至数据驱动集成电路单元。 另外, 驱动信号处理单元也可以内 置于时钟控制器或数据驱动集成电路单元内。 当驱动信号处理单元内置于时 钟控制器时, 可以直接接收系统的驱动信号源发出的驱动信号, 按照上述步 骤 502处理后, 再通过时钟控制器的其他功能单元进行相关处理, 然后输出 至数据驱动集成电路单元; 也可以先由时钟控制器其他功能单元进行相关处 理后, 再由所述驱动信号处理单元按照上述步骤 502处理, 然后发送至数据 驱动集成电路单元。 当所述驱动信号处理单元内置于数据驱动集成电路单元 内时,可以直接接收时钟控制器发出的驱动信号,按照上述步骤 502处理后, 再通过数据驱动集成电路单元的其他功能单元进行相关处理, 然后输出至数 据线, 或根据不同用户要求的伽马曲线(Gamma Curve )按比例校正相应的 系数后再输出给所述数据线; 也可以先由数据驱动集成电路单元的其他功能 单元进行相关处理后, 再由所述驱动信号处理单元按照上述步骤 502处理, 然后输出至数据线, 或根据不同用户要求的伽马曲线(Gamma Curve )按比 例校正相应的系数后再输出给所述数据线。 这里, 在输出给数据线之前利用 不同用户要求的伽马曲线( Gamma Curve )按比例校正相应的系数是为了带 给用户更好的感官体验, 利用伽马曲线校正以使人的大脑感知的显示器输出 的亮度变化成线性曲线, 从而提高画面品质。
值得一提的是, 上述液晶显示面板的像素阵列中亚像素的顺序、 形状、 以及大小等还可以根据用户需求进行相应的调整。 图 6a和图 6b、 图 7a和图 7b示出了优选的像素阵列结构。
在图 6a和图 6b中, 每个像素包括 6个子像素: 一个红色子像素1 、 一
个绿色子像素 G、 一个蓝色子像素^ 一个黄色子像素 Y和二个白色子像素 W。 在图 7a和图 7b中, 每个像素包含 5个子像素: 一个红色子像素1、 一 个绿色子像素 G、 一个蓝色子像素^ 一个黄色子像素 Y和一个白色子像素 W。 图 6a和图 6b、 图 7a和图 7b示出的像素阵列结构的区别在于白色子像 素 W的个数不同, 这是因为白色亚像素 W对于改变像素整体的显示颜色的 影响几乎为零, 它的存在只是增加像素的亮度或者在显示同样亮度的前提下 降低背光源的功耗, 因此基于对液晶显示面板的色域零影响的原则, 可以优 选地进行白色子像素 W个数的灵活设置;当然也可以根据个人喜好及用户要 求,将设置为两个的白色亚像素 W改为其他颜色的亚像素。在图 6a和图 6b、 图 7a和图 7b所示的像素阵列结构中,白色子像素 W位于其他四个子像素的 中间位置, 且分别与红色 R、 绿色 G、 蓝色 B、 黄色 Y子像素相连接, 釆用 这种相对对称的像素阵列结构可以获得较好的混色效果。 如图 6b和图 7b所 示,优选地将白色子像素 W设置成在被其他子像素围绕的中心位置上的同一 个像素,这有利于降低白色亚像素 W对其他亚像素造成的干扰,从而更真实 地还原图像。
目前量产的液晶显示面板中的一个像素由 RGB 三个子像素组成, 当 RGB这三个子像素水平排列时, 每个子像素都成矩形且长宽比是 3:1。 当釆 用如图 6a或图 7a的像素排布时,每个子像素的长宽比可以优选地设置为 3:2, 此时白色子像素 W与红色子像素 R宽度相同, 或者也可以釆用其他比例关 系, 不再赘述。 在图 6b和图 7b中, 红色 R、 绿色 G、 蓝色 B、 黄色 Y子像 素呈全等图形, 该图形为一矩形与一直角梯形的组合, 矩形长宽之比为 8:3 , 梯形上底与下底之比为 8:3 , 上底与高之比为 8:5; 白色子像素 W为正方形, 边长与形成其他子像素的直角梯形的上底之比为 8:7。 具体地, 当图 6b和图 7b的红色 R、 绿色 G、 蓝色 B、 黄色 Y子像素呈全等梯形时, 上底与下底之 比为 9:7 , 上底与高之比为 1 :1 ; 此时白色子像素 W为正方形, 边长与形成其 他子像素的直角梯形的上底之比为 2:3 , 当然亦可以釆用其他比例关系进行 设置。
所述方法还可以包括: 步骤 503 , 当接收到的驱动信号的信号类型为 RGBWY驱动信号时, 直接根据所述液晶显示面板像素阵列结构, 输出驱动 信号。
应当理解, 所述步骤 503和步骤 501 502没有严格的先后顺序。
本发明还提供了一种液晶显示面板的驱动装置, 包括栅极驱动集成电路 单元、 数据驱动集成电路单元及时钟控制器; 所述装置还包括驱动信号处理 单元, 其中, 所述驱动信号处理单元包括: 用于当接收到的驱动信号的信号 类型不为 RGBWY驱动信号时, 对所述驱动信号进行分解的部件, 该部件根 据所述液晶显示面板的像素阵列结构, 输出分解后的驱动信号; 以及用于当 接收到的驱动信号的信号类型为 RGBWY驱动信号时,直接根据所述液晶显 示面板像素的阵列结构, 输出驱动信号的部件; 其中, 所述不为 RGBWY驱 动信号的信号类型包括 RGB驱动信号、 RGBW驱动信号、 RGBY驱动信号 等等。
在本发明的实施例中, 所述驱动信号处理单元包括: 用于进行混色处理 的部件, 对接收到的 RGB驱动信号进行混色处理, 得到黄色分量和白色分 量; 才艮据所述黄色分量和白色分量, 得到 RGBWY信号类型的驱动信号。
在本发明的实施例中, 所述驱动信号处理单元包括: 用于进行混色处理 的部件, 当所述驱动信号为 RGB驱动信号时, 对所述 RGB驱动信号进行混 色处理, 得到第一黄色分量 Y1; 根据所述第一黄色分量 Y1和所述 RGB驱 动信号中的初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0, 得到第 一红色分量 Rl、 第一绿色分量 Gl、第一蓝色分量 B1; 具其中, R1=R0 - R,, R,为 Y1中所含的红色分量; G1=G0 _ G,, G,为所述 Y1中所含的绿色分量, B1=B0 _ B,, B,为 Y1中所含的蓝色分量; 以及对所述第一红色分量 Rl、 第 一绿色分量 Gl、 第一蓝色分量 B1 以及第一黄色分量 Y1进行混色处理, 得 到白色分量 W2; 根据所述白色分量 W2、 第一红色分量 Rl、 第一绿色分量 Gl、 第一蓝色分量 B1 以及第一黄色分量 Y1 , 得到第二红色分量 R2、 第二 绿色分量 G2、 第二蓝色分量 B2以及第二黄色分量 Y2; 其中, R2=R1 _ R" , R" 为 W2中所含的红色分量; G2=G1 - G" , G" 为 W2中所含的绿色分量; B2=B1 - B" , B" 为 W2中所含的蓝色分量; Y2=Y1 - Y" , Υ" 为 W2中所 含的黄色分量。
在本发明的另一实施例中, 所述驱动信号处理单元包括: 用于进行混色 处理的部件, 当所述驱动信号为 RGB驱动信号时, 对所述 RGB驱动信号进 行混色处理, 得到白色分量 W1; 根据所述白色分量 W1和所述 RGB驱动信 号中的初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0, 得到第一红 色分量 Rl、 第一绿色分量 Gl、 第一蓝色分量 B1; 其中, R1=R0-R', R'为
Wl中所含的红色分量; G1=G0-G,, G,为 Wl中所含的绿色分量; B1=B0-B,, B,为 Wl 中所含的蓝色分量; 以及对所述第一红色分量 Rl、 第一绿色分量 Gl、 第一蓝色分量 B1进行混色处理, 得到黄色分量 Y1 ; 才艮据所述黄色分量 Yl、 第一红色分量 Rl、 第一绿色分量 Gl、 第一蓝色分量 B1 , 得到第二红 色分量 R2、 第二绿色分量 G2、 第二蓝色分量 B2; 其中, R2=R1-R" , R" 为 Y1中所含的红色分量; G2=G1-G" , G"为 Y1中所含的绿色分量; B2=B1-B" , B" 为 Y1中所含的蓝色分量。
在本发明的实施例中, 所述驱动信号处理单元包括: 用于进行混色处理 的部件, 对所述 RGBW驱动信号进行混色处理后, 得到黄色分量; 才艮据所 述黄色分量, 得到 RGB WY信号类型的驱动信号。
在本发明的另一实施例中, 其中, 所述驱动信号处理单元包括: 用于进 行混色处理的部件, 当所述驱动信号为 RGBW驱动信号时, 对所述 RGBW 驱动信号中的初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0进行 混色处理, 得到黄色分量 Y1; 才艮据所述黄色分量 Yl、 初始红色分量 R0、 初 始绿色分量 G0、 初始蓝色分量 B0, 处理得到第一红色分量 Rl、 第一绿色分 量 Gl、 第一蓝色分量 B1; 其中, R1=R0-R,, R,为 Yl中所含的红色分量; G1=G0- G', G'为 Yl中所含的绿色分量; Β1=Β0-Β' , B'为 Yl中所含的蓝色 分量。
在本发明的另一实施例中, 所述驱动信号处理单元包括: 用于进行混色 处理的部件, 当所述驱动信号为 RGBW驱动信号时, 对所述 RGBW驱动信 号进行混色处理, 得到黄色分量 Y1; 才艮据所述黄色分量 Yl、 初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0、 初始白色分量 W0, 处理得到第 一红色分量 Rl、 第一绿色分量 Gl、 第一蓝色分量 Bl、 第一白色分量 Wl ; 其中, R1=R0-R,, R,为 Yl中所含的红色分量; G1=G0-G,, G,为 Yl中所含 的绿色分量; Β1=Β0-Β' , B'为 Y1 中所含的蓝色分量; W1=W0-W', W'为 Y1中所含的白色分量。
在本发明的实施例中, 所述驱动信号处理单元包括: 用于进行混色处理 的部件, 对所述 RGBY驱动信号进行混色处理后, 得到白色分量; 根据所述 白色分量, 得到 RGB WY信号类型的驱动信号。
在本发明的另一实施例中, 所述驱动信号处理单元包括: 用于进行混色 处理的部件, 当所述驱动信号为 RGB Y驱动信号时, 对所述 RGBY驱动信
号中的初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0进行混色处 理, 得到白色分量 W1; 才艮据所述的白色分量 Wl、 初始红色分量 R0、 初始 绿色分量 GO、 初始蓝色分量 BO, 处理得到第一红色分量 Rl、 第一绿色分量 Gl、 第一蓝色分量 B1 ; 其中, R1=R0-R,, R,为 W1 中所含的红色分量; G1=G0-G', G'为 W1 中所含的绿色分量; Β1=Β0-Β' , B'为 W1 中所含的蓝 色分量。
在本发明的另一实施例中, 所述驱动信号处理单元包括: 用于进行混色 处理的部件, 当所述驱动信号为 RGB Υ驱动信号时, 对所述 RGBY驱动信 号进行混色处理, 得到白色分量 W1 ; 才艮据所述白色分量 Wl、初始红色分量 R0、 初始绿色分量 G0、 初始蓝色分量 B0、 初始黄色分量 Y0, 处理得到第 一红色分量 Rl、 第一绿色分量 Gl、 第一蓝色分量 Bl、 第一黄色分量 Y1 ; 其中, R1=R0-R,, R,为 W1 中所含的红色分量; G1=G0-G,, G,为 W1 中所 含的绿色分量; Β1=Β0-Β' , B'为 W1中所含的蓝色分量; Υ1=Υ0- Υ' , Y'为 W1中所含的黄色分量。
在本发明的另一实施例中, 所述驱动信号处理单元包括: 用于当所述液 晶显示面板的像素阵列结构为图 6a或图 6b所示的两种像素阵列结构时, 即 像素阵列为五片瓦矩阵结构且每个像素包括包含 6个子像素: 一个红色子像 素1、 一个绿色子像素0、 一个蓝色子像素^ 一个黄色子像素 Y和二个白 色子像素 W时, 输出 RGBWY信号类型的驱动信号的红色分量、 绿色分量、 蓝色分量、 黄色分量以及一半的白色分量的部件, 具体可以输出给所述液晶 显示面板的数据线, 或者根据不同用户要求的伽马曲线按比例校正相应的系 数后再输出给所述数据线。
在本发明的另一实施例中, 所述驱动信号处理单元包括: 用于当所述液 晶显示面板像素阵列结构为图 7a或图 7b所示的两种像素阵列结构时, 即像 素阵列为五片瓦矩阵结构且每个像素包含 5个子像素: 一个红色子像素1、 一个绿色子像素0、 一个蓝色子像素^ 一个黄色子像素 Y和一个白色子像 素 W时, 输出 RGBWY信号类型的驱动信号的红色分量、 绿色分量、 蓝色 分量、 黄色分量以及白色分量的部件, 具体可以输出给所述液晶显示面板的 数据线, 或者根据不同用户要求的伽马曲线按比例校正相应的系数后再输出 给所述数据线。
另外, 上述液晶显示面板的像素阵列中子像素的顺序、 形状、 以及大小
等可以才艮据用户需求进行相应调整。 其中, 图 6a和图 6b、 图 7a和图 7b示 出了优选的像素阵列结构。
在图 6a和图 6b中, 每个像素包括 6个子像素: 一个红色子像素1、 一 个绿色子像素 G、 一个蓝色子像素^ 一个黄色子像素 Y和二个白色子像素 W。 在图 7a和图 7b中, 每个像素包含 5个子像素: 一个红色子像素1、 一 个绿色子像素 G、 一个蓝色子像素^ 一个黄色子像素 Y和一个白色子像素 W。 其中, 图 6a和图 6b、 图 7a和图 7b示出的像素阵列结构的区别在于白 色子像素 W的个数不同, 这是因为白色子像素 W对改变像素整体的显示颜 色的影响几乎为零, 它的存在只是增加像素的亮度或者在显示同样亮度的前 提下降低背光源的功耗, 因此基于对液晶显示面板的色域零影响的原则, 可 以优选地进行白色子像素 W个数的灵活设置;当然也可以根据个人喜好及用 户要求, 将设置为两个的白色子像素 W改为其他颜色的子像素。
但在图 6a和图 6b、 图 7a和图 7b所示的像素阵列结构中, 都是白色子 像素 W位于其他四个子像素的中间位置,且分别与红色 R、绿色 G、蓝色 B、 黄色 Y子像素相连接,釆用这种相对对称的像素阵列结构可以得到较好的混 色效果。尤其如图 6b和图 7b所示,优选地将白色子像素 W设置成在被其他 子像素围绕的中心位置上的同一个像素子 ,这有利于降低白色子像素 W对其 他子像素造成的干扰, 从而更真实地还原图像。
目前用于量产的液晶显示面板中的一个像素由 RGB三个子像素组成, 且当 RGB子像素水平排列时, 每个子像素都成矩形且长宽比是 3:1。 当釆用 如图 6a或图 7a的像素排布时, 每个子像素的长宽比可以优选地设置为 3:2, 此时白色子像素 W与红色子像素 R宽度相同, 当然也可以釆用其他比例关 系, 在此不再赘述。 在图 6b和图 7b中, 红色 R、 绿色 G、 蓝色 B、 黄色 Y 子像素呈全等图形, 该图形为一矩形与一直角梯形的组合, 矩形长宽之比为 8:3 , 梯形上底与下底之比为 8:3 , 上底与高之比为 8:5; 而白色子像素 W为 正方形, 边长与其他子像素上底之比为 8:7。 具体地, 当图 6b和图 7b的红 色1、绿色 G、蓝色 B、黄色 Y子像素呈全等梯形时,上底与下底之比为 9:7 , 上底与高之比为 1 :1 ; 此时白色子像素 W为正方形, 边长与其他子像素上底 的之比为 2:3 , 当然亦可以釆用其他比例关系进行设置。
应当理解, 上述驱动信号处理单元既可以相对于所述时钟控制器或数据 驱动集成电路单元独立存在, 也可以内置于时钟控制器或数据驱动集成电路
单元中。 当所述驱动信号处理单元独立存在时, 可以直接与系统的驱动信号 源相连接, 接收所述驱动信号源发出的驱动信号, 如上所述进行处理后输出 至时钟控制器; 也可以位于时钟控制器与数据驱动集成电路单元之间, 接收 所述时钟控制器发出的驱动信号, 对所述驱动信号如上进行处理后输出至数 据驱动集成电路单元。 另外, 驱动信号处理单元也可以内置于时钟控制器或 数据驱动集成电路单元内。 当内置于时钟控制器时, 可以直接接收系统的驱 动信号源发出的驱动信号, 如上进行处理后, 再通过时钟控制器其余功能单 元进行相关处理后输出至数据驱动集成电路单元, 也可以先由时钟控制器其 他功能单元进行相关处理后, 再由所述驱动信号处理单元如上进行处理后, 发送至数据驱动集成电路单元; 当内置于数据驱动集成电路单元时, 可以直 接接收时钟控制器发出的驱动信号, 如上述进行处理后, 再通过数据驱动集 成电路单元的其他功能单元进行相关处理后, 输出至数据线或根据不同用户 要求伽马曲线按比例校正相应的系数后再输出给所述数据线, 也可以先由数 据驱动集成电路单元的其他功能单元进行相关处理后, 再由所述驱动信号处 理单元如上述进行处理后, 输出至数据线或根据不同用户要求伽马曲线按比 例校正相应的系数后再输出给所述数据线。 这里, 所述在输出给数据线之前 利用不同用户要求的伽马曲线按比例校正相应的系数是为了带给用户更好的 感官体验, 利用伽马曲线校正使人的大脑感知的显示器输出的亮度变化成线 性曲线, 从而提高画面品盾。
本发明还提供一种液晶显示面板,所述液晶显示面板具体包括:数据线、 栅极线以及如上所述的液晶显示面板驱动装置。
图 8示出了具有图 6a和图 6b像素阵列的液晶显示面板的结构, 图 9示 出了具有图 7a和图 7b像素阵列的液晶显示面板的结构。 这里, 图 8和图 9 中的显示面板均是以分辨率为 mxn 的液晶显示面板进行的示意性表示, 其 中, 图 8和图 9所包括的液晶显示面板的驱动装置是以驱动信号处理单元内 置于数据驱动集成电路单元为例进行的示意性表示。 可选择地, 所述液晶显 示面板的像素阵列中子像素的顺序、 形状、 以及大小等还可以根据用户需求 进行相应调整。 进一步地, 所述液晶显示面板的分辨率为 mxn, 所述液晶显 示面板的数据线与数据驱动集成电路单元相连接, 个数为 5m, 如图 8和图 9 中 Sl~S5m所示; 栅极线与栅极驱动集成电路单元相连接, 个数为 n, 如图 8 和图 9中 Gl~Gn所示, 其中, m和 n为正整数。
进一步地, 所述数据线电压的极性可以釆用列翻转方式进行翻转, 具体 地, 参照图 10a和图 10b、 图 11a和图 lib所示的数据线列翻转前后的电压 极性方式示意, 由于五片瓦矩阵的像素阵列结构, 为了保证位于同一列的子 像素极性的一致, 如图 10a和图 10b、 图 11a和图 lib所示, 其左上角第一 个像素所连接的 5个数据线: S1 S5的极性可以依次为: +、 +、 -、 +、 + ; 或者-、 -、 +、 -、 -。 所述列翻转是指第 Y帧画面下数据驱动集成 电路单元的同一根数据线上的电压极性相同, Y+1帧画面下数据驱动集成电 路单元的同一根数据线上的电压与 Y帧时同一根数据线的极性相反,从而达 到既能防止液晶老化又能降低功耗的目的, 其中 Y为大于等于 1的整数。
以上所述仅为本发明的较佳实施例, 仅用于说明而并非用于限定本发明 的保护范围。
Claims
1、 一种液晶显示面板驱动方法, 包括下列步骤:
当接收到的驱动信号的信号类型不为 RGBWY驱动信号时,对所述驱动 信号进行分解;
才艮据所述液晶显示面板像素阵列结构, 输出分解后的驱动信号; 当接收到的驱动信号的信号类型为 RGBWY驱动信号时,直接根据所述 液晶显示面板像素阵列结构, 输出驱动信号。
2、 根据权利要求 1 所述的方法, 其中, 所述当接收到的驱动信号的信 号类型不为 RGBWY驱动信号时, 对所述驱动信号进行分解的步骤包括: 对接收到的 RGB驱动信号进行混色处理后, 得到黄色分量和白色分量; 根据所述黄色分量和白色分量, 得到 RGBWY信号类型的驱动信号。
3、 根据权利要求 2 所述的方法, 其中, 所述对所述驱动信号进行分解 的步骤包括:
当所述驱动信号为 RGB驱动信号时,对所述 RGB驱动信号进行混色处 理, 得到第一黄色分量;
才艮据所述第一黄色分量和所述 RGB驱动信号中的初始红色分量、 初始 绿色分量、 初始蓝色分量, 得到第一红色分量、 第一绿色分量、 第一蓝色分 量;
对所述第一红色分量、 第一绿色分量、 第一蓝色分量以及第一黄色分量 进行混色处理, 得到白色分量;
根据所述白色分量、 第一红色分量、 第一绿色分量、 第一蓝色分量以及 第一黄色分量, 得到第二红色分量、 第二绿色分量、 第二蓝色分量和第二黄 色分量。
4、 根据权利要求 2 所述的方法, 其中, 所述对所述驱动信号进行分解 的步骤包括:
当所述驱动信号为 RGB驱动信号时,对所述 RGB驱动信号进行混色处 理, 得到白色分量;
根据所述白色分量和所述 RGB驱动信号中的初始红色分量、 初始绿色 分量、 初始蓝色分量, 得到第一红色分量、 第一绿色分量、 第一蓝色分量; 对所述第一红色分量、 第一绿色分量、 第一蓝色分量进行混色处理, 得 到黄色分量;
根据所述黄色分量、 第一红色分量、 第一绿色分量以及第一蓝色分量, 得到第二红色分量、 第二绿色分量、 第二蓝色分量。
5、 根据权利要求 1 所述的方法, 其中, 所述当接收到的驱动信号的信 号类型不为 RGBWY驱动信号时, 对所述驱动信号进行分解的步骤包括: 对所述 RGBW驱动信号进行混色处理后, 得到黄色分量;
根据所述黄色分量, 得到 RGBWY信号类型的驱动信号。
6、 根据权利要求 5 所述的方法, 其中, 所述对所述驱动信号进行分解 的步骤包括:
当所述驱动信号为 RGBW驱动信号时, 对所述 RGBW驱动信号中的初 始红色分量、 初始绿色分量和初始蓝色分量进行混色处理, 得到黄色分量; 根据所述黄色分量和所述初始红色分量、初始绿色分量、初始蓝色分量, 得到第一红色分量、 第一绿色分量、 第一蓝色分量。
7、 根据权利要求 5 所述的方法, 其中, 所述对所述驱动信号进行分解 的步骤包括:
当所述驱动信号为 RGBW驱动信号时, 对所述 RGBW驱动信号进行混 色处理, 得到黄色分量;
根据所述黄色分量和所述 RGBW驱动信号中的初始红色分量、 初始绿 色分量、 初始蓝色分量、 初始白色分量, 得到第一红色分量、 第一绿色分量、 第一蓝色分量、 第一白色分量。
8、 根据权利要求 1 所述的方法, 其中, 所述当接收到的驱动信号的信 号类型不为 RGBWY驱动信号时, 对所述驱动信号进行分解的步骤包括: 对所述 RGBY驱动信号进行混色处理后, 得到白色分量;
根据所述白色分量, 得到 RGBWY信号类型的驱动信号。
9、 根据权利要求 8 所述的方法, 其中, 所述对所述驱动信号进行分解 的步骤包括:
当所述驱动信号为 RGBY驱动信号时, 对所述 RGBY驱动信号中的初 始红色分量、 初始绿色分量、 初始蓝色分量进行混色处理, 得到白色分量; 根据所述白色分量和所述初始红色分量、初始绿色分量、初始蓝色分量, 得到第一红色分量、 第一绿色分量、 第一蓝色分量。
10、 根据权利要求 8所述的方法, 其中, 所述对所述驱动信号进行分解 的步骤包括:
当所述驱动信号为 RGBY驱动信号时, 对所述 RGBY驱动信号进行混 色处理, 得到白色分量;
根据所述白色分量和所述 RGBY驱动信号中的初始红色分量、初始绿色 分量、 初始蓝色分量、 初始黄色分量, 得到第一红色分量、 第一绿色分量、 第一蓝色分量、 第一黄色分量。
11、 根据权利要求 1至 10任一项所述的方法, 其中, 所述根据所述液 晶显示面板像素阵列结构, 输出分解后的驱动信号或输出驱动信号的步骤包 括:
当所述液晶显示面板像素阵列结构为五片瓦结构且一个像素包括一个 红色子像素、 一个绿色子像素、 一个蓝色子像素、 一个黄色子像素和二个白 色子像素时, 输出 RGBWY信号类型的驱动信号的红色分量、 绿色分量、 蓝 色分量、 黄色分量以及一半的白色分量;
当所述液晶显示面板像素阵列结构为五片瓦结构且一个像素包括一个 红色子像素、 一个绿色子像素、 一个蓝色子像素、 一个黄色子像素和一个白 色子像素时, 输出 RGBWY信号类型的驱动信号分的红色分量、 绿色分量、 蓝色分量、 黄色分量以及白色分量。
12、 一种液晶显示面板驱动装置, 包括栅极驱动集成电路单元、 数据驱 动集成电路单元及时钟控制器, 其中, 所述装置还包括: 驱动信号处理单元; 其中,
所述驱动信号处理单元包括:
用于当接收到的驱动信号的信号类型不为 RGBWY驱动信号时,对所述 驱动信号进行分解的部件, 才艮据所述液晶显示面板像素阵列结构, 输出分解 后的驱动信号; 以及
用于当接收到的驱动信号的信号类型为 RGBWY驱动信号时,直接根据 所述液晶显示面板像素阵列结构, 输出驱动信号的部件。
13、 根据权利要求 12所述的装置, 其中, 所述驱动信号处理单元包括: 用于进行混色处理的部件, 对接收到的 RGB驱动信号进行混色处理, 得到 黄色分量和白色分量; 才艮据所述黄色分量和白色分量, 得到 RGBWY信号类 型的驱动信号; 或者, 对所述 RGBW驱动信号进行混色处理后, 得到黄色 分量; 才艮据所述黄色分量, 得到 RGBWY信号类型的驱动信号; 或者, 对所 述 RGB Y驱动信号进行混色处理后, 得到白色分量; 才艮据所述白色分量, 得 到 RGBWY信号类型的驱动信号。
14、 根据权利要求 12或 13所述的装置, 其中, 所述驱动信号处理单元 包括:
用于当所述液晶显示面板像素阵列结构为五片瓦结构且一个像素包括 一个红色子像素、 一个绿色子像素、 一个蓝色子像素、 一个黄色子像素和二 个白色子像素时,输出 RGBWY信号类型的驱动信号的红色分量、绿色分量、 蓝色分量、 黄色分量以及一半的白色分量的部件; 以及
用于当所述液晶显示面板像素阵列结构为五片瓦结构且一个像素包括 一个红色子像素、 一个绿色子像素、 一个蓝色子像素、 一个黄色子像素和一 个白色子像素时,输出 RGBWY信号类型的驱动信号的红色分量、绿色分量、 蓝色分量、 黄色分量以及白色分量的部件。
15、 一种液晶显示面板, 包括数据线、 栅极线, 其中, 所述液晶显示面 板还包括如权利要求 12至 13任一项所述的液晶显示面板驱动装置。
16、 根据权利要求 15 所述的液晶显示面板, 其中, 当所述液晶显示面 板的分辨率为 mxn时,所述液晶显示面板的数据线与数据驱动集成电路单元 相连接, 个数为 5m; 栅极线与栅极驱动集成电路单元相连接, 个数为 n, 其 中, m和 n为正整数。
17、根据权利要求 15所述的液晶显示面板, 其中, 所述数据线的电压极 性釆用列翻转方式进行改变。
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| EP3138093A4 (en) * | 2014-04-30 | 2018-01-10 | Hewlett-Packard Development Company, L.P. | Large gamut pixel and subtractive mask for a visual presentation |
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| CN102779495B (zh) * | 2012-04-05 | 2015-09-09 | 北京京东方光电科技有限公司 | 一种液晶显示面板及其驱动装置、方法 |
| KR101489637B1 (ko) * | 2012-09-25 | 2015-02-04 | 엘지디스플레이 주식회사 | 타이밍 컨트롤러 및 그 구동 방법과 이를 이용한 평판표시장치 |
| JP5910529B2 (ja) * | 2013-02-15 | 2016-04-27 | ソニー株式会社 | 表示装置および電子機器 |
| CN103559849B (zh) * | 2013-11-15 | 2016-08-17 | 北京京东方光电科技有限公司 | 显示面板的显示方法 |
| CN103699347B (zh) * | 2013-11-26 | 2017-04-12 | 敦泰科技有限公司 | 一种数据传输的方法、处理器及终端 |
| CN103903549B (zh) * | 2014-03-25 | 2016-08-17 | 京东方科技集团股份有限公司 | 显示方法 |
| CN104464631B (zh) * | 2014-12-23 | 2017-04-05 | 京东方科技集团股份有限公司 | 一种显示面板的驱动方法及显示面板、显示装置 |
| CN104485064B (zh) * | 2014-12-31 | 2017-03-15 | 深圳市华星光电技术有限公司 | 基于边缘像素检测的rgbw显示装置的子像素补偿着色的方法 |
| CN106483708B (zh) * | 2017-01-03 | 2019-05-28 | 京东方科技集团股份有限公司 | 彩膜基板、阵列基板、显示装置及显示装置的控制方法 |
| US10347664B2 (en) | 2017-04-12 | 2019-07-09 | Wuhan China Star Optoelectronics Technology Co., Ltd. | RGBW display panel |
| CN106873277B (zh) * | 2017-04-12 | 2019-11-08 | 武汉华星光电技术有限公司 | Rgbw显示面板 |
| CN108492794B (zh) * | 2018-04-03 | 2020-05-15 | 京东方科技集团股份有限公司 | 一种rgb图像信号转换为rgbw图像信号的方法及装置 |
| CN109584835B (zh) * | 2019-01-29 | 2022-01-07 | 京东方科技集团股份有限公司 | 阵列基板、阵列基板的驱动方法、显示面板 |
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