WO2018113411A1 - 液晶显示装置的驱动方法、驱动装置及液晶显示装置 - Google Patents
液晶显示装置的驱动方法、驱动装置及液晶显示装置 Download PDFInfo
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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
- G09G3/3611—Control of matrices with row and column drivers
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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
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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
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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
- G09G3/3406—Control of illumination source
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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
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
- G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
- G09G2300/0447—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations for multi-domain technique to improve the viewing angle in a liquid crystal display, such as multi-vertical alignment [MVA]
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/028—Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
Definitions
- the present invention relates to the field of liquid crystal panel display technologies, and in particular, to a method, device, and liquid crystal display device for driving a liquid crystal display panel.
- VA liquid crystal technology has higher production efficiency and lower manufacturing cost than the IPS liquid crystal technology, but the optical properties are superior.
- IPS liquid crystal technology there are obvious optical defects, especially large-size panels require a large viewing angle for commercial applications.
- VA-type liquid crystal drivers often fail to meet market application requirements, which affects VA-type liquid crystals. Promotion of technology.
- the general VA type liquid crystal technology solves the problem of the role bias is to divide the RGB primary colors into the main sub-pixels, and the spatial primary and secondary pixels give different driving voltages to solve the defect of the visual character bias.
- Such pixel design is often It is necessary to design a metal trace or a thin film transistor component to drive the sub-pixel, thereby causing sacrifice of the light-transmissive region, affecting the panel transmittance, and directly increasing the cost of the backlight module.
- the present invention provides a method of driving a liquid crystal display device performed by a computing device, which can reduce the difference in visual characters, while improving panel transmittance and reducing backlight module cost.
- a method for driving a liquid crystal display device performed by a computing device includes the following steps
- the processor receives the image to be displayed, acquires the first pixel signal and the position information of the liquid crystal pixel, and performs a table lookup on the first pixel signal to obtain a first voltage panel driving signal of each pixel;
- the second pixel signal is calculated according to the first pixel signal of the first position liquid crystal pixel and the first voltage panel driving signal thereof;
- calculating the first brightness signal according to the first voltage panel driving signal of the second position liquid crystal pixel and the adjacent first position liquid crystal pixel comprises:
- i represents row position information of the liquid crystal pixel in the liquid crystal panel
- j represents column position information of the liquid crystal pixel in the liquid crystal panel
- R ij represents a second pixel signal and a first pixel signal of the first position liquid crystal pixel
- L represents a first voltage panel driving signal of the first position liquid crystal pixel
- n row position information of the liquid crystal pixel in the liquid crystal panel
- m column position information of the liquid crystal pixel in the liquid crystal panel
- a, b, c represent weight factors
- L nm and L' nm respectively represent a first voltage panel driving signal and a first brightness signal of the second position liquid crystal pixel
- L n (m_i), L n ( m +i), L ( n _i)m, L ( n+ i) m , L ( n _i)( m _i), L ( n _i)( m +i L(n+i)(m+i) s L ( n +i)( m _i) represents the first voltage panel drive signal of the liquid crystal pixel at the first position.
- the driving method further includes:
- the first brightness signal ⁇ is calculated according to the formula, if the liquid crystal pixel position corresponding to the liquid crystal pixel of the first position in the formula does not exist in the liquid crystal panel, the first voltage panel corresponding to the liquid crystal pixel position that does not exist is driven. The signal is recorded as 0. .
- the driving method further includes:
- the second position liquid crystal pixel in each block is disposed at the same relative position as the first position liquid crystal pixel.
- the present invention provides a driving device for a liquid crystal display device, the driving device comprising a processor and a nonvolatile memory, the nonvolatile memory storing executable instructions, the processor executing executable instructions, the executable Instructions include:
- an acquiring module receiving an image to be displayed, acquiring a first pixel signal and position information of the liquid crystal pixel, performing a table lookup on the first pixel signal, and obtaining a first voltage panel driving signal of each pixel;
- determining module determining, according to the location information, that the liquid crystal pixel is a first position liquid crystal pixel or a second position liquid crystal pixel;
- a calculation module when the liquid crystal pixel is the first position liquid crystal pixel, calculating a second pixel signal according to the first pixel signal of the first position liquid crystal pixel and the first voltage panel driving signal thereof;
- the driving module driving the first position liquid crystal pixel with the second pixel signal, and driving the second position liquid crystal pixel with the first brightness signal.
- the calculating module substitutes the relevant parameters into the following formula to calculate a second pixel signal
- i represents row position information of the liquid crystal pixel in the liquid crystal panel
- j represents column position information of the liquid crystal pixel in the liquid crystal panel
- R ij represents a second pixel signal and a first pixel signal of the first position liquid crystal pixel
- Lij represents a first voltage panel driving signal of the first position liquid crystal pixel
- the calculation module further substitutes relevant parameters into the following formula to calculate a first brightness signal
- n row position information of the liquid crystal pixel in the liquid crystal panel
- m column position information of the liquid crystal pixel in the liquid crystal panel
- a, b, c represent weight factors
- L nm and L' nm respectively represent a first voltage panel driving signal and a first brightness signal of the second position liquid crystal pixel
- a first voltage panel drive signal of a position liquid crystal pixel A first voltage panel drive signal of a position liquid crystal pixel.
- the driving device of the liquid crystal display panel further includes:
- a zero value module when the first brightness signal ⁇ is calculated according to the formula, if the liquid crystal pixel position corresponding to the first position liquid crystal pixel in the formula does not exist in the liquid crystal panel, the liquid crystal pixel position that does not exist corresponds to the first A voltage panel drive signal is recorded as zero.
- the driving device of the liquid crystal display panel further includes:
- a partitioning module dividing a liquid crystal pixel in the liquid crystal panel into a plurality of array blocks, each of the blocks comprising four liquid crystal pixels adjacent to each other;
- setting module setting any one of the liquid crystal pixels in the block as the second position liquid crystal pixel
- the second position liquid crystal pixel in each block is disposed at the same relative position as the first position liquid crystal pixel.
- the present invention also proposes a liquid crystal display device including the driving device of the liquid crystal display device as described above.
- the present invention obtains a first pixel signal and position information of a liquid crystal pixel by receiving an image to be displayed, and performs a table lookup on the first pixel signal to obtain a first voltage panel driving signal of each pixel; and determining a liquid crystal pixel according to the position information.
- liquid crystal pixel or a second position liquid crystal pixel; when the liquid crystal pixel is the first position liquid crystal pixel, calculating a second pixel signal according to the first pixel signal of the first position liquid crystal pixel and the first voltage panel driving signal;
- the liquid crystal pixel is a second position liquid crystal pixel ⁇ , and the first brightness signal is calculated according to the first voltage panel driving signal of the second position liquid crystal pixel and the adjacent first position liquid crystal pixel; and the second pixel signal is used for the first position liquid crystal pixel Driving, driving the second position liquid crystal pixel with the first brightness signal; using the gray level compensation between the display brightness of the adjacent liquid crystal pixels, thereby reducing the color shift under the viewing angle, so that the picture is viewed at a large viewing angle
- the effects and the viewing angle of the viewing angle are basically the same, improving the display quality.
- the technical solution of the invention eliminates the need to provide primary and secondary pixels on the panel, thereby eliminating the need to design metal traces and thin film transistor elements to drive the sub-pixels, thereby simplifying production.
- the process reduces costs, and the board's penetration rate is improved by removing the sub-pixels.
- FIG. 1 is a flow chart of an embodiment of a driving method of a liquid crystal display device according to the present invention
- FIG. 2 is a schematic diagram showing a first pixel signal distribution showing an image frame by using one frame of picture
- FIG. 3 is a schematic diagram showing the distribution of high voltage panel signals in an image by using two frames of images
- FIG. 4 is a schematic diagram showing the distribution of a first voltage panel signal in an image by using two frames of pictures
- FIG. 5 is a flow chart of a further embodiment of a driving method of a liquid crystal display device of the present invention.
- FIG. 6 is a schematic diagram showing an embodiment of setting a liquid crystal pixel position of a second position according to a block
- FIG. 7 is a schematic diagram of another embodiment of setting a liquid crystal pixel position of a second position according to a block
- FIG. 8 is a schematic diagram of a further embodiment of setting a liquid crystal pixel position of a second position according to a block; [0064] FIG.
- FIG. 9 is a schematic diagram showing a relative position of an embodiment of a second position liquid crystal pixel and a first position liquid crystal pixel in a block;
- FIG. 10 is a schematic diagram showing a relationship between weight ratio coefficients of an embodiment of a second position liquid crystal pixel and a first position liquid crystal pixel;
- FIG. 11 is a functional block diagram of an embodiment of a driving device for a liquid crystal display device of the present invention.
- FIG. 12 is a functional block diagram of another embodiment of a driving device of a liquid crystal display device according to the present invention.
- FIG. 13 is a functional block diagram of a further embodiment of a driving device for a liquid crystal display device of the present invention.
- FIG. 14 is a functional block diagram of an embodiment of a liquid crystal display device of the present invention.
- FIG. 15 is a functional block diagram of another embodiment of a liquid crystal display device of the present invention.
- FIG. 16 is a functional block diagram of a further embodiment of a liquid crystal display device of the present invention.
- first”, “second” and the like in the present invention are used for descriptive purposes only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. .
- features defining “first” and “second” may include at least one of the features, either explicitly or implicitly.
- the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.
- the present invention provides a driving method of a liquid crystal display device.
- the driving method of the liquid crystal display panel includes the following steps: [0079] Step S100, receiving an image to be displayed, acquiring a first pixel signal and position information of the liquid crystal pixel, Performing a lookup table on the first pixel signal to obtain a first voltage panel driving signal of each pixel;
- Step S200 determining, according to the location information, that the liquid crystal pixel is a first position liquid crystal pixel or a second position liquid crystal pixel;
- Step S300 when the liquid crystal pixel is the first position liquid crystal pixel, calculating the second pixel signal according to the first pixel signal of the first position liquid crystal pixel and the first voltage panel driving signal thereof;
- Step S400 when the liquid crystal pixel is the second position liquid crystal pixel, calculating the first brightness signal according to the first voltage panel driving signal of the second position liquid crystal pixel and the adjacent first position liquid crystal pixel;
- Step S500 driving the first position liquid crystal pixel with the second pixel signal, and driving the second position liquid crystal pixel with the first brightness signal.
- the liquid crystal panel driving signal is sequentially driven by the high and low voltage signals in sequence with the image frame.
- FIG. 2 shows an image displayed by one frame, and R represents The corresponding liquid crystal pixel is driven by the first pixel signal.
- FIG. 3 and FIG. 4 show an image displayed by using two frames of pictures.
- H indicates that the corresponding liquid crystal sub-pixel is driven by the high voltage panel signal
- L in FIG. 4 indicates that the first voltage panel driving signal is used to drive the corresponding image.
- Liquid crystal sub-pixel Liquid crystal sub-pixel.
- the high voltage panel driving signal RH/GH/B h and the first voltage panel driving signal RL/G L /B l are preset high and low voltage signals given according to the RGB input signal in advance, and are required to compensate for the viewing angle effect. It is determined that the relevant data has been burned into the liquid crystal display device after the production of the liquid crystal display device. Generally, it is recorded in the hardware buffer by LUT (Look Up Table). With 8 bit drive signal, each R/G/B input signal input 0 ⁇ 255 corresponds to 256 high and low voltage signals. 3*256 pairs of high voltage signal RH/GH/B h and low voltage signal R L /G L /BL.
- the display effect of the liquid crystal is determined by driving the panel driving signal and the luminance signal of the backlight in common.
- the luminance signal of the backlight is not changed, and only the panel driving signal is adjusted.
- the present invention pre-sets the position information of the liquid crystal pixels in the liquid crystal panel: the first position liquid crystal pixel or the second position liquid crystal pixel; the second position liquid crystal pixel is used for color difference compensation, and then the liquid crystal pixel is obtained from the received image.
- the first voltage panel driving signal and the position information, the first voltage panel driving signal is preset, and can be obtained by performing a look-up table after obtaining the ⁇ ; and determining the liquid crystal pixel as the first position according to the position information of the liquid crystal pixel
- the liquid crystal pixel is also the second position liquid crystal pixel; when the liquid crystal pixel is the first position liquid crystal pixel, the second pixel signal is calculated according to the first pixel signal of the first position liquid crystal pixel and the first voltage panel driving signal; For the second position liquid crystal pixel, the first brightness signal is calculated according to the first voltage panel driving signal of the second position liquid crystal pixel and its adjacent first position liquid crystal pixel.
- the technical solution of the invention eliminates the need to provide primary and secondary pixels on the panel, thereby eliminating the need to design metal traces and thin film transistor elements to drive the sub-pixels, simplifying the production process and reducing the cost, and improving the wear of the panel by removing the sub-pixels. Transmittance.
- the method further includes:
- the present invention divides a liquid crystal pixel of a liquid crystal panel into a plurality of blocks, a plurality of said block arrays are arranged, and at least one second position liquid crystal for performing chromatic aberration compensation is selected at the same position of each block Pixel; obtaining a first voltage panel driving signal of the liquid crystal pixel from the received image, the first voltage panel driving signal is preset, and can be obtained after the table is needed for obtaining the lookup table; according to the second position liquid crystal pixel and The first voltage panel driving signal of the adjacent first position liquid crystal pixel calculates a first brightness signal, and the second pixel signal is calculated according to the first pixel signal of the first position liquid crystal pixel and the first voltage panel driving signal thereof.
- the technical solution of the invention eliminates the need to provide primary and secondary pixels on the panel, thereby eliminating the need to design metal traces and thin film transistor elements to drive the sub-pixels, simplifying the production process and reducing the cost, and improving the wear of the panel by removing the sub-pixels. Transmittance.
- a method for setting a second position liquid crystal pixel and a first position liquid crystal pixel includes:
- the adjacent two liquid crystal pixels are one block, and any one of the selected liquid crystal pixels is used as the second position liquid crystal pixel.
- L' indicates driving with a first luminance signal
- R' indicates driving with a second pixel signal.
- the liquid crystal pixels of the liquid crystal panel are driven by L' and R', and the other liquid crystal pixels are driven by corresponding pixel signals, and one image is displayed by one frame.
- two liquid crystal pixels adjacent to each other in the horizontal direction are one block, and the entire liquid crystal panel can be divided into a plurality of block arrays.
- a liquid crystal pixel at a certain position in all the blocks is selected as the second position liquid crystal pixel.
- the liquid crystal pixels at the same position in all the blocks are selected as the second position liquid crystal pixels.
- a method for setting a second position liquid crystal pixel and a first position liquid crystal pixel includes: [0098] selecting adjacent nine liquid crystal pixels as one block, and selecting a liquid crystal located at a center of the block The pixel serves as a second position liquid crystal pixel.
- L' indicates driving with a first luminance signal
- R' indicates driving with a second pixel signal.
- the liquid crystal pixels of the liquid crystal panel are driven by L' and R', and the other liquid crystal pixels are driven by corresponding pixel signals, and one image is displayed by one frame.
- nine adjacent liquid crystal pixels are used as one block, and nine liquid crystal pixels are arranged in three rows and three columns.
- the liquid crystal pixels at the same position in all the blocks are selected as the second position liquid crystal pixels. Calculating a first brightness signal of the second position liquid crystal pixel according to the first voltage panel driving signal of the nine liquid crystal pixels, and calculating a second pixel signal according to the first pixel signal of the first position liquid crystal pixel and the first voltage panel driving signal thereof.
- the two types of pixels are driven by the first luminance signal and the second pixel signal, respectively.
- the method for setting the second position liquid crystal pixel and the first position liquid crystal pixel includes: [0101] using four adjacent liquid crystal pixels as one block, and selecting any one of the liquid crystals in the block The pixel serves as a second position liquid crystal pixel.
- the step of “setting any one of the liquid crystal pixels in the set block as the second position liquid crystal pixel” includes:
- the second position liquid crystal pixel in each block is disposed at the same relative position as the first position liquid crystal pixel.
- L' indicates driving with a first luminance signal
- R' indicates driving with a second pixel signal.
- the liquid crystal pixels of the liquid crystal panel are driven by L' and R', and the other liquid crystal pixels are driven by corresponding pixel signals, and one image is displayed by one frame.
- liquid crystal pixels are used as one block, and four liquid crystal pixels are located on the four vertices of the square.
- the liquid crystal pixels at the same position in all the blocks are selected as the second position liquid crystal pixels.
- Calculating a first brightness signal according to the first voltage panel driving signal of the second position liquid crystal pixel and the adjacent first position liquid crystal pixel, and calculating the first pixel signal according to the first pixel signal of the first position liquid crystal pixel and the first voltage panel driving signal thereof Two pixel signal.
- the two types of pixels are driven by the first luminance signal and the second pixel signal, respectively.
- the liquid crystal pixel is the second position liquid crystal pixel
- the first brightness is calculated according to the first voltage panel driving signal of the second position liquid crystal pixel and the adjacent first position liquid crystal pixel
- the signal “includes:
- n row position information of the liquid crystal pixel in the liquid crystal panel
- m column position information of the liquid crystal pixel in the liquid crystal panel
- a, b, c represent weight factors
- L nm and L' nm respectively represent a first voltage panel driving signal and a first luminance signal of the second position liquid crystal pixel
- L), L), L, L, L), L), L L represent the first voltage panel drive signal of the liquid crystal pixel at the first position.
- L' indicates driving with a first luminance signal
- R' indicates driving with a second pixel signal.
- the liquid crystal pixels of the liquid crystal panel are driven by L' and R', and the other liquid crystal pixels are driven by corresponding pixel signals, and one image is displayed by one frame.
- calculating a first luminance signal ⁇ of the second position liquid crystal pixel, centering on the second position liquid crystal pixel, and forming a block together with the adjacent first position liquid crystal pixels, and the second position liquid crystal pixel is There is also a difference in the influence between the liquid crystal pixels in the first position.
- the weighting factor indicates the magnitude of the influence between the liquid crystal pixel at the second position and the liquid crystal pixel at the first position, and the first position adjacent to the edge of the liquid crystal pixel at the second position.
- FIG. 9 illustrates a relative position of a liquid crystal pixel at a second position and a liquid crystal pixel at a first position in a block.
- the first voltage panel drive signal corresponding to the liquid crystal pixel position that does not exist is recorded as 0.
- FIG. 10 shows a weight ratio coefficient relationship between all of the second position liquid crystal pixels and the first position liquid crystal pixels in the liquid crystal panel.
- the first brightness signal calculation is to calculate the theoretically all liquid crystal pixels in the unit need to be given low voltage signal compensation and the corresponding position of the first position liquid crystal pixel in the unit to the real position of the second position liquid crystal pixel.
- the weight is adjusted to make the compensation effect of the low-brightness liquid crystal pixel signal conform to the effect of the unit average required compensation signal, and the adjustment of the weight also reflects the liquid crystal pixel gray-scale signal that the liquid crystal pixel position needs to correspond to.
- the second pixel signal is calculated according to the first pixel signal of the first position liquid crystal pixel and the first voltage panel driving signal thereof” includes: [0119] Substituting the relevant parameters into the following formula to calculate a second pixel signal;
- i represents row position information of the liquid crystal pixel in the liquid crystal panel
- j represents column position information of the liquid crystal pixel in the liquid crystal panel
- R′ R ij respectively represent a second pixel signal and a first pixel signal of the first position liquid crystal pixel
- L represents a first voltage panel drive signal of the first position liquid crystal pixel.
- the weight is given to 1, indicating that the influence of the actual position is the largest, and the liquid crystal pixel is at the first position of the liquid crystal pixel at the first position of the four positions.
- the pixel pupil is also adjacent to the other second position liquid crystal pixel edge, and therefore, the secondary weight is 0.5, and the first position liquid crystal pixel of the four corners of the second position liquid crystal pixel is also diagonally opposite to the other second position liquid crystal pixel. Adjacent, therefore, the secondary weight is given 0.25, so that the true representative signal that the low gray level position should be reflected can be truly reflected to give a reasonable brightness distribution to the surrounding liquid crystal pixels.
- the second pixel signal of the first position liquid crystal pixel is obtained by subtracting the first voltage panel driving signal from the first pixel signal of the first pixel.
- the technical solution of the present invention solves the shortcomings of the visual role of the TN, OCB, and VA type TFT liquid crystal panels, and uses a direct or side backlight, white light or RGB three-color light source, and cooperates with the panel high first voltage panel driving signal to backlight brightness. Perform compensation adjustment to reduce the flicker caused by the difference between the panel high and low voltage drive signal switching. At the same time, it can maintain the advantages of high and low liquid crystal voltage compensation depending on the role.
- the pixel is no longer designed as a primary and secondary pixel, which greatly enhances the transmittance of the TFT liquid crystal panel and reduces the backlight cost. For high-resolution TFT LCD panel bursts, the pixel is no longer used as the primary and secondary pixel design for the penetration rate and the resolution of the extraction is more significant.
- the present invention provides a driving device for a liquid crystal display panel, which may be a television set, a computer, or the like.
- the driving device of the liquid crystal display panel includes:
- the acquiring module 10 receiving an image to be displayed, acquiring a first pixel signal and position information of the liquid crystal pixel, and performing a table lookup on the first pixel signal to obtain a first voltage panel driving signal of each pixel;
- the determining module 20 determining, according to the location information, that the liquid crystal pixel is a first position liquid crystal pixel or a second position liquid crystal pixel;
- the calculation module 30 when the liquid crystal pixel is the first position liquid crystal pixel, according to the first position liquid crystal pixel a first pixel signal and a first voltage panel driving signal thereof to calculate a second pixel signal; and
- the driving module 40 driving the first position liquid crystal pixel with the second pixel signal, and driving the second position liquid crystal pixel with the first brightness signal.
- the calculating module 30 substitutes the relevant parameters into the following formula to calculate the first brightness signal.
- n row position information of the liquid crystal pixel in the liquid crystal panel
- m column position information of the liquid crystal pixel in the liquid crystal panel
- a, b, c represent weight factors
- L nm and L′ nm respectively represent a first voltage panel driving signal and a first brightness signal of the second position liquid crystal pixel
- L n (m_l), L n ( m +l), L ( n _i) m, L ( n+ i) m , L ( n _l) ( m _l), L ( n _l) ( m + l L(n+l)(m+l) s L ( n +l)( m _l) represents the first voltage panel driving signal of the liquid crystal pixel at the first position.
- the driving device of the liquid crystal display panel further includes:
- the zero value module 50 when calculating the first brightness signal ⁇ according to the formula, if the liquid crystal pixel position corresponding to the liquid crystal pixel of the first position in the formula does not exist in the liquid crystal panel, the liquid crystal pixel position that does not exist corresponds to The first voltage panel drive signal is recorded as zero.
- the calculating module 30 substitutes the relevant parameters into the following formula to calculate a second pixel signal.
- n represents row position information of the liquid crystal pixel in the liquid crystal panel
- m represents column position information of the liquid crystal pixel in the liquid crystal panel
- R′ nm and R nm respectively represent a second pixel signal and a first pixel signal of the first position liquid crystal pixel
- L ⁇ represents a first voltage panel driving signal of the first position liquid crystal pixel.
- the driving device of the liquid crystal display panel further includes: [0146] The partitioning module 60: dividing the liquid crystal pixel in the liquid crystal panel into a plurality of array blocks, each block comprising four liquid crystal pixels adjacent to each other;
- Setting module 70 Set any one of the liquid crystal pixels in the block to be the liquid crystal pixel in the second position.
- the setting module 70 further sets the second position liquid crystal pixel in each block and the first position liquid crystal pixel in the same relative position.
- the present invention further provides a driving device for a liquid crystal display device, the driving device comprising a processor and a non-volatile memory, the non-volatile memory storing executable instructions, the processing The executables execute executable instructions to implement the methods recited in the various embodiments described above.
- the modules/units shown in FIG. 11, FIG. 12 and FIG. 13 of the present invention acquisition module 10, determination module 20, calculation module 30, drive module 40, zero value module 50, partition
- the module 60 and the setting module 70 can be software modules or software units.
- various software modules or software units may be inherently stored in a non-volatile memory and executed by a processor.
- the present invention also provides a liquid crystal display device having a structure as shown in FIG. 14, FIG. 15, and FIG. 16.
- the liquid crystal display device includes the driving device of the liquid crystal display panel, and the specific structure of the driving device of the liquid crystal display panel With reference to the above embodiments, since the liquid crystal display device adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are not repeated herein.
- the liquid crystal display device may be a tablet display screen, a television display screen, a computer display screen, or the like.
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Abstract
一种液晶显示装置的驱动方法、驱动装置及液晶显示装置,其中液晶显示装置的驱动方法包括以下步骤:接收待显示图像,获取液晶像素的第一像素信号及位置信息,对第一像素信号进行查表,得到各个像素的第一电压面板驱动信号(S100);根据位置信息判断液晶像素为第一位置液晶像素或第二位置液晶像素(S200);当液晶像素为第一位置液晶像素时,根据第一位置液晶像素的第一像素信号(R ij)及其第一电压面板驱动信号(L ij)计算第二像素信号(R '
ij)(S300);当液晶像素为第二位置液晶像素时,根据第二位置液晶像素及其相邻的第一位置液晶像素的第一电压面板驱动信号(L nm, L n
(m-1), L n
(m+1), L (n-1)m, L (n+1)m, L (n-1)(m-1), L (n-1)(m+1), L (n+1)(m+1), L (n+1)(m-1))计算第一亮度信号(L '
nm)(S400);对第一位置液晶像素采用第二像素信号(R '
ij)进行驱动,对第二位置液晶像素采用第一亮度信号(L '
nm)进行驱动(S500)。
Description
液晶显示装置的驱动方法、 驱动装置及液晶显示装置 技术领域
[0001] 本发明涉及液晶面板显示技术领域, 特别涉及一种液晶显示面板的驱动方法、 装置及液晶显示装置。
背景技术
[0002] 现有的大尺寸液晶面板大多数采用负型 VA液晶或 IPS液晶技术, VA型液晶技 术相较于 IPS液晶技术存在较高的生产效率及低制造成本的优势, 但光学性质上 相较于 IPS液晶技术存在较明显的光学性质缺陷, 尤其是大尺寸面板在商业应用 方面需要较大的视角呈现, VA型液晶驱动在视角色偏往往无法符合市场应用需 求, 这影响了 VA型液晶技术的推广。
[0003] 一般 VA型液晶技术解决视角色偏的方式是将 RGB各基色再划分为主次像素, 经空间上主次像素给予不同的驱动电压来解决视角色偏的缺陷, 这样的像素设 计往往需要再设计金属走线或薄膜晶体管元件来驱动次像素, 造成可透光幵口 区牺牲, 影响面板穿透率, 直接造成背光模组成本的提升。
技术问题
[0004] 本发明提供一种由计算设备执行的驱动液晶显示装置的方法, 其可降低视角色 差, 同吋可提高面板穿透率并降低背光模组成本。
[0005] 本发明提出的一种由计算设备执行的驱动液晶显示装置的方法, 包括以下步骤
[0006] 处理器接收待显示图像, 获取液晶像素的第一像素信号及位置信息, 对第一像 素信号进行査表, 得到各个像素的第一电压面板驱动信号;
[0007] 根据位置信息判断液晶像素为第一位置液晶像素或第二位置液晶像素;
[0008] 当液晶像素为第一位置液晶像素吋, 根据所述第一位置液晶像素的第一像素信 号及其第一电压面板驱动信号计算第二像素信号;
[0009] 当液晶像素为第二位置液晶像素吋, 根据第二位置液晶像素及其相邻的第一位 置液晶像素的第一电压面板驱动信号计算第一亮度信号;
[0010] 对第一位置液晶像素采用第二像素信号进行驱动, 对第二位置液晶像素采用第 一亮度信号进行驱动。
[001 1] 在一实施例中, 所述当液晶像素为第一位置液晶像素吋, 根据所述第一位置液 晶像素的第一像素信号及其第一电压面板驱动信号计算第二像素信号; 当液晶 像素为第二位置液晶像素吋, 根据第二位置液晶像素及其相邻的第一位置液晶 像素的第一电压面板驱动信号计算第一亮度信号包括:
[0012] 将相关参数代入下列公式, 计算第二像素信号;
[0014] 其中, i表示液晶像素在液晶面板中的行位置信息, j表示液晶像素在液晶面板 中的列位置信息;
[0015] 、 R ij分别表示第一位置液晶像素的第二像素信号、 第一像素信号;
[0016] L 表示第一位置液晶像素的第一电压面板驱动信号;
[0017] 将相关参数代入下列公式, 计算第一亮度信号;
(n+l)(m+l)+L (n+l)(m-l)) ;
[0019] 其中, n表示液晶像素在液晶面板中的行位置信息, m表示液晶像素在液晶面 板中的列位置信息, a、 b、 c表示权重因子;
[0020] L nm、 L' nm分别表示第二位置液晶像素的第一电压面板驱动信号、 第一亮度信 号;
[0021 ] L n(m_i)、 L n(m+i)、 L (n_i)m、 L (n+i)m、 L (n_i)(m_i)、 L (n_i)(m+i)、 L (n+i)(m+i) s L (n+i)(m_i)表不第 一位置液晶像素的第一电压面板驱动信号。
[0022] 在一实施例中, 所述驱动方法还包括:
[0023] 当根据所述公式计算第一亮度信号吋, 若公式中第一位置液晶像素对应的液晶 像素位置在液晶面板中不存在, 则将不存在的液晶像素位置对应的第一电压面 板驱动信号记为 0。 。
[0024] 在一实施例中, 所述权重因子 a=l, b=0.5, c=0.25。
[0025] 在一实施例中, 所述驱动方法还包括:
[0026] 将液晶面板中的液晶像素分成多个阵列区块, 每个区块包含四个彼此相邻的液
晶像素;
[0027] 设置区块中任意一个液晶像素为第二位置液晶像素;
[0028] 将各区块中第二位置液晶像素与第一位置液晶像素设置在同一相对位置。
[0029]
[0030] 本发明提出一种液晶显示装置的驱动装置, 该驱动装置包括处理器和非易失性 存储器, 该非易失性存储器存储可执行指令, 该处理器执行可执行指令, 该可 执行指令包括:
[0031] 获取模块: 接收待显示图像, 获取液晶像素的第一像素信号及位置信息, 对第 一像素信号进行査表, 得到各个像素的第一电压面板驱动信号;
[0032] 判断模块: 根据位置信息判断液晶像素为第一位置液晶像素或第二位置液晶像 素;
[0033] 计算模块: 当液晶像素为第一位置液晶像素吋, 根据所述第一位置液晶像素的 第一像素信号及其第一电压面板驱动信号计算第二像素信号; 及
[0034] 当液晶像素为第二位置液晶像素吋, 根据第二位置液晶像素及其相邻的第一位 置液晶像素的第一电压面板驱动信号计算第一亮度信号;
[0035] 驱动模块: 对第一位置液晶像素采用第二像素信号进行驱动, 对第二位置液晶 像素采用第一亮度信号进行驱动。
[0038] 其中, i表示液晶像素在液晶面板中的行位置信息, j表示液晶像素在液晶面板 中的列位置信息;
[0039] 、 R ij分别表示第一位置液晶像素的第二像素信号、 第一像素信号;
[0040] Lij表示第一位置液晶像素的第一电压面板驱动信号;
[0041] 所述计算模块还将相关参数代入下列公式, 计算第一亮度信号;
[0042] L' nm+b* (L n(m-l)+L n(m+l)+L (n-l)m+L (n+l)m) +C* (L (n-l)(m-l)+L (n-l)(m+l)+L
(n+l)(m+l)+L (n+l)(m-l)) ;
[0043] 其中, n表示液晶像素在液晶面板中的行位置信息, m表示液晶像素在液晶面 板中的列位置信息, a、 b、 c表示权重因子;
[0044] L nm、 L' nm分别表示第二位置液晶像素的第一电压面板驱动信号、 第一亮度信 号;
一位置液晶像素的第一电压面板驱动信号。
[0046] 在一实施例中, 所述液晶显示面板的驱动装置还包括:
[0047] 零值模块: 当根据所述公式计算第一亮度信号吋, 若公式中第一位置液晶像素 对应的液晶像素位置在液晶面板中不存在, 则将不存在的液晶像素位置对应的 第一电压面板驱动信号记为 0。
[0048] 在一实施例中, 所述液晶显示面板的驱动装置还包括:
[0049] 分区模块: 将液晶面板中的液晶像素分成多个阵列区块, 每个区块包含四个彼 此相邻的液晶像素;
[0050] 设置模块: 设置区块中任意一个液晶像素为第二位置液晶像素; 及
[0051] 将各区块中第二位置液晶像素与第一位置液晶像素设置在同一相对位置。
[0052]
[0053] 本发明还提出一种液晶显示装置, 所述液晶显示装置包括如上所述的液晶显示 装置的驱动装置。
[0054]
[0055] 本发明通过接收待显示图像, 获取液晶像素的第一像素信号及位置信息, 对第 一像素信号进行査表, 得到各个像素的第一电压面板驱动信号; 根据位置信息 判断液晶像素为第一位置液晶像素或第二位置液晶像素; 当液晶像素为第一位 置液晶像素吋, 根据所述第一位置液晶像素的第一像素信号及其第一电压面板 驱动信号计算第二像素信号; 当液晶像素为第二位置液晶像素吋, 根据第二位 置液晶像素及其相邻的第一位置液晶像素的第一电压面板驱动信号计算第一亮 度信号; 对第一位置液晶像素采用第二像素信号进行驱动, 对第二位置液晶像 素采用第一亮度信号进行驱动; 利用相邻的液晶像素的显示亮度间的灰阶补偿 , 有利于降低在视角下的色偏, 使得在大视角下观看的画面效果和正视角观看 到的画面效果基本相同, 提高显示品质。 本发明技术方案无需在面板上设置主 次像素, 从而无需设计金属走线和薄膜晶体管元件来驱动次像素, 简化了生产
工艺, 降低了成本, 同吋由于去掉了次像素, 提高了面板的穿透率。
对附图的简要说明
附图说明
[0056] 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实施例或 现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的 附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创 造性劳动的前提下, 还可以根据这些附图示出的步骤获得其他的附图。
[0057] 图 1为本发明液晶显示装置的驱动方法一实施例的流程图;
[0058] 图 2为采用一帧画面显示一幅图像吋的第一像素信号分布示意图;
[0059] 图 3为采用两帧画面显示一幅图像中的高电压面板信号分布示意图;
[0060] 图 4为采用两帧画面显示一幅图像中的第一电压面板信号分布示意图;
[0061] 图 5为本发明液晶显示装置的驱动方法进一步实施例的流程图;
[0062] 图 6为根据区块设置第二位置液晶像素位置一实施例的示意图;
[0063] 图 7为根据区块设置第二位置液晶像素位置另一实施例的示意图;
[0064] 图 8为根据区块设置第二位置液晶像素位置进一步实施例的示意图;
[0065] 图 9为区块中第二位置液晶像素与第一位置液晶像素一实施例的相对位置示意 图;
[0066] 图 10为第二位置液晶像素与第一位置液晶像素一实施例的权重比例系数关系示 意图;
[0067] 图 11为本发明液晶显示装置的驱动装置一实施例的功能模块图;
[0068] 图 12为本发明液晶显示装置的驱动装置另一实施例的功能模块图;
[0069] 图 13为本发明液晶显示装置的驱动装置进一步实施例的功能模块图;
[0070] 图 14为本发明液晶显示装置一实施例的功能模块图;
[0071] 图 15为本发明液晶显示装置另一实施例的功能模块图;
[0072] 图 16为本发明液晶显示装置进一步一实施例的功能模块图。
[0073] 本发明目的的实现、 功能特点及优点将结合实施例, 参照附图做进一步说明。
实施该发明的最佳实施例
本发明的最佳实施方式
[0074] 下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明的一部分实施例, 而不是全 部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创造性 劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
[0075] 需要说明, 本发明实施例中所有方向性指示 (诸如上、 下、 左、 右、 前、 后… …) 仅用于解释在某一特定姿态 (如附图所示) 下各部件之间的相对位置关系 、 运动情况等, 如果该特定姿态发生改变吋, 则该方向性指示也相应地随之改 变。
[0076] 另外, 在本发明中涉及"第一"、 "第二"等的描述仅用于描述目的, 而不能理解 为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。 由此, 限 定有"第一"、 "第二 "的特征可以明示或者隐含地包括至少一个该特征。 另外, 各 个实施例之间的技术方案可以相互结合, 但是必须是以本领域普通技术人员能 够实现为基础, 当技术方案的结合出现相互矛盾或无法实现吋应当认为这种技 术方案的结合不存在, 也不在本发明要求的保护范围之内。
[0077] 本发明提出一种液晶显示装置的驱动方法。
[0078] 参照图 1, 在本发明实施例中, 该液晶显示面板的驱动方法, 包括以下步骤: [0079] 步骤 S 100, 接收待显示图像, 获取液晶像素的第一像素信号及位置信息, 对第 一像素信号进行査表, 得到各个像素的第一电压面板驱动信号;
[0080] 步骤 S200, 根据位置信息判断液晶像素为第一位置液晶像素或第二位置液晶像 素;
[0081] 步骤 S300, 当液晶像素为第一位置液晶像素吋, 根据所述第一位置液晶像素的 第一像素信号及其第一电压面板驱动信号计算第二像素信号;
[0082] 步骤 S400, 当液晶像素为第二位置液晶像素吋, 根据第二位置液晶像素及其相 邻的第一位置液晶像素的第一电压面板驱动信号计算第一亮度信号;
[0083] 步骤 S500, 对第一位置液晶像素采用第二像素信号进行驱动, 对第二位置液晶 像素采用第一亮度信号进行驱动。
[0084] 需要说明的是, 现有技术里液晶面板驱动信号是由高低电压信号随着图像帧依 次轮流驱动。 参照图 2至图 4, 其中, 图 2为用一帧画面来显示一幅图像, R表示
采用第一像素信号驱动对应的液晶像素。
[0085] 图 3和图 4表示采用两帧画面显示一幅图像, 图 3中 H表示采用高电压面板信号驱 动对应的液晶子像素, 图 4中 L表示采用第一电压面板驱动信号驱动对应的液晶 子像素。
[0086] 高电压面板驱动信号 R H/G H/B h与第一电压面板驱动信号 R L/G L/B l, 为事先根 据 RGB输入信号给予的预设高低电压信号, 是依照需要补偿的视角效果所决定 , 在液晶显示装置生产吋已经将相关数据烧录至液晶显示装置里。 一般是以 LUT (Look Up Table, 显示査找表) 的方式记录在硬件缓冲器里面, 以 8 bit驱动信号 来看每一 R/G/B输入信号输入 0〜255共对应 256高低电压信号, 共有 3*256对高 电压信号 R H/G H/B h与低电压信号 R L/G L/B L。
[0087] 在液晶显示装置中, 液晶的显示效果是由面板驱动信号及背光源的亮度信号共 同驱动来决定的。 本实施例中, 背光源的亮度信号不作改变, 仅在面板驱动信 号作调整。
[0088] 本发明预先设置液晶面板中的液晶像素的位置信息: 为第一位置液晶像素或第 二位置液晶像素; 第二位置液晶像素用于进行色差补偿, 再从接收的图像中获 取液晶像素的第一电压面板驱动信号及位置信息, 该第一电压面板驱动信号是 预先设置好的, 在需要获取吋进行査表即可获得; 根据液晶像素的位置信息即 可判断该液晶像素为第一位置液晶像素还是第二位置液晶像素; 当液晶像素为 第一位置液晶像素吋, 根据所述第一位置液晶像素的第一像素信号及其第一电 压面板驱动信号计算第二像素信号; 当液晶像素为第二位置液晶像素吋, 根据 第二位置液晶像素及其相邻的第一位置液晶像素的第一电压面板驱动信号计算 第一亮度信号。 本发明技术方案无需在面板上设置主次像素, 从而无需设计金 属走线和薄膜晶体管元件来驱动次像素, 简化了生产工艺, 降低了成本, 同吋 由于去掉了次像素, 提高了面板的穿透率。
[0089] 在另一实施例中, 参照图 5, 进一步地, 所述方法还包括:
[0090] 将液晶面板中的液晶像素分成多个阵列区块, 每个区块包含四个彼此相邻的液 晶像素;
[0091] 设置区块中任意一个液晶像素为第二位置液晶像素。
[0092] 本发明通过将液晶面板的液晶像素分成多个区块, 多个所述区块阵列排布, 在 每个区块的同一位置选定至少一个用于进行色差补偿的第二位置液晶像素; 再 从接收的图像中获取液晶像素的第一电压面板驱动信号, 该第一电压面板驱动 信号是预先设置好的, 在需要获取吋进行査表即可获得; 根据第二位置液晶像 素及其相邻的第一位置液晶像素的第一电压面板驱动信号计算第一亮度信号, 根据所述第一位置液晶像素的第一像素信号及其第一电压面板驱动信号计算第 二像素信号。 本发明技术方案无需在面板上设置主次像素, 从而无需设计金属 走线和薄膜晶体管元件来驱动次像素, 简化了生产工艺, 降低了成本, 同吋由 于去掉了次像素, 提高了面板的穿透率。
[0093] 根据一个阵列区块中液晶像素的个数, 包括如下实施例:
[0094] 参照图 6, 在一实施例中, 设置第二位置液晶像素及第一位置液晶像素的方法 包括:
[0095] 将相邻两个液晶像素为一个区块, 选定区块中任意一个液晶像素作为第二位置 液晶像素。 参照图 6, 图 6中, L'表示采用第一亮度信号驱动, R'表示采用第二像 素信号驱动。 本发明实施例中, 同吋采用 L'和 R'对液晶面板的液晶像素进行驱动 , 其他液晶像素则采用对应的像素信号驱动, 用一帧画面显示一幅图像。
[0096] 这里, 在水平方向上相邻两个液晶像素为一个区块, 整个液晶面板则可分成若 干个区块阵列。 选定所有区块中某一位置的液晶像素作为第二位置液晶像素。 选定所有区块中同一位置的液晶像素作为第二位置液晶像素。 根据第二位置液 晶像素及其相邻的第一位置液晶像素的第一电压面板驱动信号计算第一亮度信 号, 根据第一位置液晶像素的第一像素信号及其第一电压面板驱动信号计算第 二像素信号。 再分别采用第一亮度信号和第二像素信号对两种类型的像素进行 驱动。
[0097] 在再一实施例中, 设置第二位置液晶像素及第一位置液晶像素的方法包括: [0098] 将相邻的九个液晶像素作为一个区块, 选定位于区块中心的液晶像素作为第二 位置液晶像素。 参照图 7, 图 7中, L'表示采用第一亮度信号驱动, R'表示采用第 二像素信号驱动。 本发明实施例中, 同吋采用 L'和 R'对液晶面板的液晶像素进行 驱动, 其他液晶像素则采用对应的像素信号驱动, 用一帧画面显示一幅图像。
[0099] 这里以九个相邻的液晶像素作为一个区块, 九个液晶像素以三行三列的形式排 歹 |J。 选定所有区块中同一位置的液晶像素作为第二位置液晶像素。 依据九个液 晶像素的第一电压面板驱动信号计算该第二位置液晶像素的第一亮度信号, 根 据第一位置液晶像素的第一像素信号及其第一电压面板驱动信号计算第二像素 信号。 再分别采用第一亮度信号和第二像素信号对两种类型的像素进行驱动。
[0100] 在另一实施例中, 设置第二位置液晶像素及第一位置液晶像素的方法包括: [0101] 将相邻的四个液晶像素作为一个区块, 选定区块中任意一个液晶像素作为第二 位置液晶像素。
[0102] 进一步地, 所述步骤"所述设置区块中任意一个液晶像素为第二位置液晶像素" 包括:
[0103] 将各区块中第二位置液晶像素与第一位置液晶像素设置在同一相对位置。
[0104] 参照图 8, 图 8中, L'表示采用第一亮度信号驱动, R'表示采用第二像素信号驱 动。 本发明实施例中, 同吋采用 L'和 R'对液晶面板的液晶像素进行驱动, 其他液 晶像素则采用对应的像素信号驱动, 用一帧画面显示一幅图像。
[0105] 这里以四个相邻的液晶像素作为一个区块, 四个液晶像素位于正方形的四个顶 点上。 选定所有区块中同一位置的液晶像素作为第二位置液晶像素。 根据第二 位置液晶像素及其相邻的第一位置液晶像素的第一电压面板驱动信号计算第一 亮度信号, 根据第一位置液晶像素的第一像素信号及其第一电压面板驱动信号 计算第二像素信号。 再分别采用第一亮度信号和第二像素信号对两种类型的像 素进行驱动。
[0106] 进一步地, 所述步骤"所述当液晶像素为第二位置液晶像素吋, 根据第二位置 液晶像素及其相邻的第一位置液晶像素的第一电压面板驱动信号计算第一亮度 信号"包括:
[0107] 将相关参数代入下列公式, 计算第一亮度信号;
(n+l)(m+l)+L (n+l)(m-l)) ;
[0109] 其中, n表示液晶像素在液晶面板中的行位置信息, m表示液晶像素在液晶面 板中的列位置信息, a、 b、 c表示权重因子;
[0110] L nm、 L' nm分别表示第二位置液晶像素的第一电压面板驱动信号、 第一亮度信 号;
[0111] L )、 L )、 L 、 L 、 L )、 L )、 L L 表不第 一位置液晶像素的第一电压面板驱动信号。
[0112] 参照图 8, 图 8中, L'表示采用第一亮度信号驱动, R'表示采用第二像素信号驱 动。 本发明实施例中, 同吋采用 L'和 R'对液晶面板的液晶像素进行驱动, 其他液 晶像素则采用对应的像素信号驱动, 用一帧画面显示一幅图像。
[0113] 计算第二位置液晶像素的第一亮度信号吋, 以第二位置液晶像素为中心, 与相 邻第一位置液晶像素共同组成一个区块, 由于位置的差异, 第二位置液晶像素 与第一位置液晶像素间的影响也存在差异, 一实施例中, 通过权重因子表示第 二位置液晶像素与第一位置液晶像素间影响的大小, 与第二位置液晶像素边相 邻的第一位置液晶像素的取权重因子 b, 与第二位置液晶像素对角相邻的第一位 置液晶像素的取权重因子 c, L nm表示第二位置液晶像素的第一电压面板驱动信 号, L' nm表示需要计算的第二位置液晶像素的第一亮度信号。
[0114] 参照图 9, 图 9表示在一个区块中第二位置液晶像素与第一位置液晶像素的相对 位置, 一实施例中, 当根据所述公式计算第一亮度信号吋, 若公式中第一位置 液晶像素对应的液晶像素位置在液晶面板中不存在, 则将不存在的液晶像素位 置对应的第一电压面板驱动信号记为 0。
[0115] 一实施例中, 所述权重因子 a=l, b=0.5, c=0.25。
[0116] 参照图 10, 图 10表示液晶面板中所有的第二位置液晶像素与第一位置液晶像素 的权重比例系数关系。
[0117] 需要说明的是, 该第一亮度信号计算是统计该单位中理论上所有液晶像素需要 给予低电压信号补偿及该单位中第一位置液晶像素相应位置对第二位置液晶像 素的真实位置影响性予以权重调整, 使得该低亮度液晶像素信号得补偿效果可 以符合该单位平均所需补偿信号的效果, 权重的调整亦反应出该液晶像素位置 真实对应图像需要给予的液晶像素灰阶信号。
[0118] 进一步地, 所述步骤"当液晶像素为第一位置液晶像素吋, 根据所述第一位置 液晶像素的第一像素信号及其第一电压面板驱动信号计算第二像素信号"包括:
[0119] 将相关参数代入下列公式, 计算第二像素信号;
[0121] 其中, i表示液晶像素在液晶面板中的行位置信息, j表示液晶像素在液晶面板 中的列位置信息;
[0122] R' R ij分别表示第一位置液晶像素的第二像素信号、 第一像素信号;
[0123] L 表示第一位置液晶像素的第一电压面板驱动信号。
[0124] 以九个液晶像素为一个单位举例, 取代显示第一亮度信号位置的权重给予 1,代 表实际该位置的影响性是最大, 第二位置液晶像素上下左右四个位置的第一位 置液晶像素同吋还与其他的第二位置液晶像素边相邻, 因此, 给予次权重 0.5, 第二位置液晶像素四个角落的第一位置液晶像素同吋还与其他的第二位置液晶 像素对角相邻, 因此, 给予次权重 0.25, 这样即能真实的反应该显示低灰阶位置 所应反应的真实代表信号又能给予周围液晶像素合理的亮度分配。 而第一位置 液晶像素的第二像素信号则由自身的第一像素信号减去第一电压面板驱动信号 得到。
[0125] 本发明技术方案为解决 TN、 OCB及 VA型 TFT液晶面板的视角色偏缺点, 运用 直下或侧边背光、 白光或 RGB三色光源, 配合面板高第一电压面板驱动信号对 背光亮度进行补偿调整, 减少面板高低电压驱动信号切换差异造成的闪烁现象 。 同吋还能维持高低液晶电压补偿视角色偏的优点。 其次, 像素不再设计成主 要跟次要像素, 大大提伸 TFT液晶面板的穿透率, 减少背光成本的设计。 对于高 解析度 TFT液晶面板幵发, 像素不再作主要及次要像素设计对于穿透率及提伸解 析度得效果更为显著。
[0126] 参照图 11, 本发明提出一种液晶显示面板的驱动装置, 该装置可以是电视机、 电脑等。 所述液晶显示面板的驱动装置包括:
[0127] 获取模块 10: 接收待显示图像, 获取液晶像素的第一像素信号及位置信息, 对 第一像素信号进行査表, 得到各个像素的第一电压面板驱动信号;
[0128] 判断模块 20: 根据位置信息判断液晶像素为第一位置液晶像素或第二位置液晶 像素;
[0129] 计算模块 30: 当液晶像素为第一位置液晶像素吋, 根据所述第一位置液晶像素
的第一像素信号及其第一电压面板驱动信号计算第二像素信号; 及
[0130] 当液晶像素为第二位置液晶像素吋, 根据第二位置液晶像素及其相邻的第一位 置液晶像素的第一电压面板驱动信号计算第一亮度信号;
[0131] 驱动模块 40: 对第一位置液晶像素采用第二像素信号进行驱动, 对第二位置液 晶像素采用第一亮度信号进行驱动。
[0132] 在一实施例中, 所述计算模块 30将相关参数代入下列公式, 计算第一亮度信号
(n+l)(m+l)+L (n+l)(m-l)) ;
[0134] 其中, n表示液晶像素在液晶面板中的行位置信息, m表示液晶像素在液晶面 板中的列位置信息, a、 b、 c表示权重因子;
[0135] L nm、 L' nm分别表示第二位置液晶像素的第一电压面板驱动信号、 第一亮度信 号;
[0136] L n(m_l)、 L n(m+l)、 L (n_i)m、 L (n+i)m、 L (n_l)(m_l)、 L (n_l)(m+l)、 L (n+l)(m+l) s L (n+l)(m_l)表不第 一位置液晶像素的第一电压面板驱动信号。
[0137] 参照图 12, 在一实施例中, 所述液晶显示面板的驱动装置还包括:
[0138] 零值模块 50: 当根据所述公式计算第一亮度信号吋, 若公式中第一位置液晶像 素对应的液晶像素位置在液晶面板中不存在, 则将不存在的液晶像素位置对应 的第一电压面板驱动信号记为 0。
[0139] 在一实施例中, 所述权重因子 a=l, b=0.5, c=0.25。
[0140] 在一实施例中, 所述计算模块 30将相关参数代入下列公式, 计算第二像素信号
[0141] R' nm-L nm;
[0142] 其中, n表示液晶像素在液晶面板中的行位置信息, m表示液晶像素在液晶面 板中的列位置信息;
[0143] R' nm、 R nm分别表示第一位置液晶像素的第二像素信号、 第一像素信号;
[0144] L ^表示第一位置液晶像素的第一电压面板驱动信号。
[0145] 参照图 13, 在一实施例中, 所述液晶显示面板的驱动装置还包括:
[0146] 分区模块 60: 将液晶面板中的液晶像素分成多个阵列区块, 每个区块包含四个 彼此相邻的液晶像素;
[0147] 设置模块 70: 设置区块中任意一个液晶像素为第二位置液晶像素。
[0148] 在一实施例中, 所述设置模块 70还将各区块中第二位置液晶像素与第一位置液 晶像素设置在同一相对位置。
[0149] 本领域普通技术人员应当理解, 本发明还提供一种液晶显示装置的驱动装置, 该驱动装置包括处理器和非易失性存储器, 该非易失性存储器存储可执行指令 , 该处理器执行可执行指令用以实现以上所描述的各实施例所记载的方法。 本 领域普通技术人员应当进一步理解, 本发明附图 11、 图 12、 图 13中所显示的模 块 /单元: 获取模块 10、 判断模块 20、 计算模块 30、 驱动模块 40、 零值模块 50、 分区模块 60、 设置模块 70可为软件模块或者软件单元。 此外, 各种软件模块或 软件单元可以固有地存储在非易失性存储器中并通过处理器进行执行。
[0150] 本发明还提出一种液晶显示装置, 其结构如图 14、 图 15、 图 16所示, 该液晶显 示装置包括上述液晶显示面板的驱动装置, 该液晶显示面板的驱动装置的具体 结构参照上述实施例, 由于本液晶显示装置采用了上述所有实施例的全部技术 方案, 因此至少具有上述实施例的技术方案所带来的所有有益效果, 在此不再 一一赘述。
[0151] 该液晶显示装置可以是平板电脑显示屏、 电视机显示屏、 电脑显示屏等。
[0152] 以上所述仅为本发明的优选实施例, 并非因此限制本发明的专利范围, 凡是在 本发明的申请构思下, 利用本发明说明书及附图内容所作的等效结构变换, 或 直接 /间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。
Claims
[权利要求 1] 一种液晶显示装置的驱动方法, 其中, 所述方法包括以下步骤:
处理模块接收待显示图像, 获取像素的第一像素信号及位置信息, 并 对第一像素信号进行査表, 得到各个像素的第一电压驱动信号; 根据所述位置信息判断像素为第一位置液晶像素或第二位置液晶像素 当像素为第一位置液晶像素吋, 根据所述第一位置液晶像素的第一像 素信号及其第一电压面板驱动信号计算第二像素信号;
当液晶像素为第二位置液晶像素吋, 根据第二位置液晶像素及其相邻 的第一位置液晶像素的第一电压面板驱动信号计算第一亮度信号; 以 及
对第一位置液晶像素采用第二像素信号进行驱动, 对第二位置液晶像 素采用第一亮度信号进行驱动。
[权利要求 2] 如权利要求 1所述的液晶显示装置的驱动方法, 其中, 所述当液晶像 素为第一位置液晶像素吋, 根据所述第一位置液晶像素的第一像素信 号及其第一电压面板驱动信号计算第二像素信号; 当液晶像素为第二 位置液晶像素吋, 根据第二位置液晶像素及其相邻的第一位置液晶像 素的第一电压面板驱动信号计算第一亮度信号包括:
将相关参数代入下列公式, 计算第二像素信号;
R' i尸 R ij-L y;
其中, i表示液晶像素在液晶面板中的行位置信息, j表示液晶像素在 液晶面板中的列位置信息;
R' ij、 R ij分别表示第一位置液晶像素的第二像素信号、 第一像素信号
Lij表示第一位置液晶像素的第一电压面板驱动信号;
L nm、 L' nm分别表示第二位置液晶像素的第一电压面板驱动信号、 第 一亮度信号;
L n(m_l)、 L n(m+l)、 L (n_l)m、 L (n+l)ms L (n-l)(m-l)s L (n_l)(m+l)、 L (n+l)(m+l)s L
( ^表示第一位置液晶像素的第一电压面板驱动信号。
[权利要求 3] 如权利要求 2所述的液晶显示装置的驱动方法, 其中, 所述驱动方法 还包括:
当根据所述公式计算第一亮度信号吋, 若公式中第一位置液晶像素对 应的液晶像素位置在液晶面板中不存在, 则将不存在的液晶像素位置 对应的第一电压面板驱动信号记为 0。
[权利要求 4] 如权利要求 2所述的液晶显示装置的驱动方法, 其中, 所述权重因子 a
=1, b=0.5, c=0.25。
[权利要求 5] 如权利要求 3所述的液晶显示装置的驱动方法, 其中, 所述权重因子 a
=1, b=0.5, c=0.25。
[权利要求 6] 如权利要求 1所述的液晶显示装置的驱动方法, 其中, 所述驱动方法 还包括:
将液晶面板中的液晶像素分成多个阵列区块, 每个区块包含四个彼此 相邻的液晶像素;
设置区块中任意一个液晶像素为第二位置液晶像素; 将各区块中第二位置液晶像素与第一位置液晶像素设置在同一相对位
[权利要求 7] 如权利要求 2所述的液晶显示装置的驱动方法, 其中, 所述驱动方法 还包括:
将液晶面板中的液晶像素分成多个阵列区块, 每个区块包含四个彼此 相邻的液晶像素;
设置区块中任意一个液晶像素为第二位置液晶像素; 将各区块中第二位置液晶像素与第一位置液晶像素设置在同一相对位
置。
[权利要求 8] —种液晶显示装置的驱动装置, 其中, 所述驱动装置包括:
处理模块;
存储模块, 所述存储器存储可执行指令;
获取模块, 用以接收待显示图像, 获取液晶像素的第一像素信号及位 置信息, 对第一像素信号进行査表, 得到各个像素的第一电压面板驱 动信号;
判断模块, 用以根据位置信息判断液晶像素为第一位置液晶像素或第 二位置液晶像素;
计算模块, 用以当液晶像素为第一位置液晶像素吋, 根据所述第一位 置液晶像素的第一像素信号及其第一电压面板驱动信号计算第二像素 信号; 以及
当液晶像素为第二位置液晶像素吋, 根据第二位置液晶像素及其相邻 的第一位置液晶像素的第一电压面板驱动信号计算第一亮度信号; 驱动模块, 用以对第一位置液晶像素采用第二像素信号进行驱动, 对 第二位置液晶像素采用第一亮度信号进行驱动。
[权利要求 9] 如权利要求 8所述的液晶显示装置的驱动装置, 其中, 所述计算模块 将相关参数代入下列公式, 计算第二像素信号; 其中, i表示液晶像素在液晶面板中的行位置信息, j表示液晶像素在 液晶面板中的列位置信息;
R' ij、 R ij分别表示第一位置液晶像素的第二像素信号、 第一像素信号
Lij表示第一位置液晶像素的第一电压面板驱动信号;
其中, n表示液晶像素在液晶面板中的行位置信息, m表示液晶像素
在液晶面板中的列位置信息, a、 b、 c表示权重因子;
L nm、 L' nm分别表示第二位置液晶像素的第一电压面板驱动信号、 第 一亮度信号;
L n(m_l)、 L n(m+l)、 L (n_l)m、 L (n+l)ms L (n-l)(m-l)s L (n_l)(m+l)、 L (n+l)(m+l)s L
( ^表示第一位置液晶像素的第一电压面板驱动信号。
[权利要求 10] 如权利要求 9所述的液晶显示装置的驱动装置, 其中, 所述液晶显示 装置的驱动装置还包括:
零值模块, 用以当根据所述公式计算第一亮度信号吋, 若公式中第一 位置液晶像素对应的液晶像素位置在液晶面板中不存在, 则将不存在 的液晶像素位置对应的第一电压面板驱动信号记为 0。
[权利要求 11] 如权利要求 8所述的液晶显示装置的驱动装置, 其中, 所述权重因子 a
=1, b=0.5, c=0.25。
[权利要求 12] 如权利要求 9所述的液晶显示装置的驱动装置, 其中, 所述权重因子 a
=1, b=0.5, c=0.25。
[权利要求 13] 如权利要求 8所述的液晶显示装置的驱动装置, 其中, 所述液晶显示 装置的驱动装置还包括:
分区模块, 用以将液晶面板中的液晶像素分成多个阵列区块, 每个区 块包含四个彼此相邻的液晶像素;
设置模块, 用以设置区块中任意一个液晶像素为第二位置液晶像素; 以及
将各区块中第二位置液晶像素与第一位置液晶像素设置在同一相对位
[权利要求 14] 如权利要求 9所述的液晶显示装置的驱动装置, 其中, 所述液晶显示 装置的驱动装置还包括:
分区模块, 用以将液晶面板中的液晶像素分成多个阵列区块, 每个区 块包含四个彼此相邻的液晶像素;
设置模块, 用以设置区块中任意一个液晶像素为第二位置液晶像素; 以及
将各区块中第二位置液晶像素与第一位置液晶像素设置在同一相对位
[权利要求 15] 一种液晶显示装置, 其中, 所述液晶显示装置包括液晶显示装置的驱 动装置, 该液晶显示装置的驱动装置包括处理器和存储器, 所述存储 器存储可执行指令, 所述处理器执行上述可执行指令, 所述可执行指 令包括:
获取模块, 用以接收待显示图像, 获取液晶像素的第一像素信号及位 置信息, 对第一像素信号进行査表, 得到各个像素的第一电压面板驱 动信号;
判断模块, 用以根据位置信息判断液晶像素为第一位置液晶像素或第 二位置液晶像素;
计算模块, 用以当液晶像素为第一位置液晶像素吋, 根据所述第一位 置液晶像素的第一像素信号及其第一电压面板驱动信号计算第二像素 信号; 以及
当液晶像素为第二位置液晶像素吋, 根据第二位置液晶像素及其相邻 的第一位置液晶像素的第一电压面板驱动信号计算第一亮度信号; 驱动模块, 用以对第一位置液晶像素采用第二像素信号进行驱动, 对 第二位置液晶像素采用第一亮度信号进行驱动。
[权利要求 16] 如权利要求 15所述的液晶显示装置, 其中, 所述计算模块将相关参数 代入下列公式, 计算第二像素信号;
R' i尸 R ij-L y;
其中, i表示液晶像素在液晶面板中的行位置信息, j表示液晶像素在 液晶面板中的列位置信息;
R' ii、 R ii分别表示第一位置液晶像素的第二像素信号、 第一像素信号
Lij表示第一位置液晶像素的第一电压面板驱动信号;
所述计算模块还将相关参数代入下列公式, 计算第一亮度信号;
其中, n表示液晶像素在液晶面板中的行位置信息, m表示液晶像素 在液晶面板中的列位置信息, a、 b、 c表示权重因子;
、 分别表示第二位置液晶像素的第一电压面板驱动信号、 第 一亮度信号;
)、 )、 、 )、
( ^表示第一位置液晶像素的第一电压面板驱动信号。
[权利要求 17] 如权利要求 16所述的液晶显示装置, 其中, 所述液晶显示装置的驱动 装置还包括:
零值模块, 用以当根据所述公式计算第一亮度信号吋, 若公式中第一 位置液晶像素对应的液晶像素位置在液晶面板中不存在, 则将不存在 的液晶像素位置对应的第一电压面板驱动信号记为 0。
[权利要求 18] 如权利要求 16所述的液晶显示装置, 其中, 所述权重因子 a=l, b=0.5 , c=0.25。
[权利要求 19] 如权利要求 17所述的液晶显示装置, 其中, 所述权重因子 a=l, b=0.5 , c=0.25。
[权利要求 20] 如权利要求 15所述的液晶显示装置, 其中, 所述液晶显示装置的驱动 装置还包括:
分区模块, 用以将液晶面板中的液晶像素分成多个阵列区块, 每个区 块包含四个彼此相邻的液晶像素;
设置模块, 用以设置区块中任意一个液晶像素为第二位置液晶像素; 以及将各区块中第二位置液晶像素与第一位置液晶像素设置在同一相 对位置。
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