WO2016169205A1 - 显示方法和显示设备 - Google Patents

显示方法和显示设备 Download PDF

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Publication number
WO2016169205A1
WO2016169205A1 PCT/CN2015/090376 CN2015090376W WO2016169205A1 WO 2016169205 A1 WO2016169205 A1 WO 2016169205A1 CN 2015090376 W CN2015090376 W CN 2015090376W WO 2016169205 A1 WO2016169205 A1 WO 2016169205A1
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Prior art keywords
channel data
channel
conversion
converted
adjustment
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English (en)
French (fr)
Inventor
郭杨辰
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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Priority to US15/122,721 priority Critical patent/US10192518B2/en
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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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a display method and a display device.
  • RGB red, green and blue
  • the RGB data of each pixel can include three channels of R, G, and B. Value.
  • the RGB three-color technology is improved, and RGBW (red, green, blue and white) four-color technology is produced.
  • a function of converting RGB data into RGBW data is set in many display devices.
  • RGB data In the process of converting RGB data into RGBW data: first take the minimum value x of the three channel values of R, G, B, and then based on ( ⁇ is a nonlinear conversion factor, generally takes a value of 2.5) Calculate the value W 1 of the W channel in the RGBW data, and then subtract the value of the R, G, and B channels by W 1 to obtain R in the RGBW data. value R G, B three channels 1, G 1, B 1, RGBW data can be obtained, and finally can be used to display the output RGBW data.
  • ⁇ is a nonlinear conversion factor, generally takes a value of 2.5
  • the hue does not change after each pixel is converted; however, due to the addition of the value of the W channel, the saturation of each pixel after the conversion will decrease to a different extent. Since the chromaticity of the pixel is determined by the hue and the saturation, the chromaticity of each pixel after the conversion and the chrominance before the conversion are different, resulting in a large chromaticity difference before and after the image conversion.
  • an embodiment of the present invention provides a display method and a display device.
  • the technical solution is as follows:
  • a display method comprising:
  • the numerical ratio of the newly added channel of the converted three-channel data relative to the three-channel data before the conversion is reduced, and the adjusted four-channel data is obtained, and the adjusted four-channel data is used.
  • the converted four-channel data is used for display output.
  • the pixel with the chromaticity difference meeting the preset adjustment condition reduces the four-channel data of the converted four-channel data with respect to the numerical ratio of the newly added three-channel data before the conversion, include:
  • the corresponding coordinate points in the chromaticity coordinate system belong to different wide-range pixel points, and the three-channel data in the converted four-channel data is reduced relative to the three-channel data before conversion. Increase the numerical ratio of the channel to get the adjusted four-channel data.
  • the converted four-channel data and the corresponding three-channel data in the chromaticity coordinate system belong to pixel points of different wide capacity ranges, and the conversion is reduced in the converted four-channel data.
  • the previous three-channel data adds the numerical ratio of the channel to the adjusted four-channel data, including:
  • the corresponding coordinate points in the chromaticity coordinate system belong to different wide-range pixel points, and in the chromaticity coordinate system, the coordinates corresponding to the three-channel data before conversion are determined. a boundary between the wide-capacity range to which the point belongs, and a line connecting the coordinate point corresponding to the converted four-channel data and the coordinate point corresponding to the three-channel data before the conversion, and determining an intersection of the boundary with the connection; as well as
  • the three-channel data in the converted four-channel data is reduced compared with the three-channel data before the conversion.
  • the numerical ratio of the channel is obtained and the adjusted four-channel data is obtained.
  • the coordinate point corresponding to the three-channel data before the conversion according to the intersection point The ratio of the distance between the lengths of the connected lines reduces the numerical ratio of the newly added channels of the converted four-channel data relative to the three channels of data before the conversion, and obtains the adjusted four-channel data, including:
  • the values of other channels in the converted four-channel data are adjusted to obtain the adjusted four-channel data.
  • the ratio of the distance between the coordinate points corresponding to the intersection data and the three-channel data before the conversion is in the length of the connection, and the converted four-channel data is relative to the conversion before
  • the value of the newly added channel of the three-channel data is reduced and adjusted, and the adjustment values of the newly added channel are obtained, including:
  • the value of the newly added channel in the converted four-channel data relative to the three-channel data before the conversion is reduced and adjusted, and the The adjustment values of the newly added channels, including:
  • the three-channel data is RGB data
  • the four-channel data is RGBW data
  • a display device comprising:
  • a conversion module configured to convert three-channel data of each pixel in the target image to be displayed into four-channel data
  • Adjustment module for calculating the converted four-channel data and the three-channel data before conversion
  • the chromaticity is poor, and for the pixel point that satisfies the preset adjustment condition, the numerical ratio of the newly added channel in the converted four-channel data relative to the three-channel data before the conversion is reduced, and the adjusted four-channel data is obtained;
  • a display module configured to perform pixel display for adjusting four-channel data in the target image, and use the adjusted four-channel data for display output; and use pixel points other than pixels of the four-channel data in the target image to be utilized
  • the converted four-channel data is displayed and output.
  • the adjustment module is configured to:
  • the corresponding coordinate points in the chromaticity coordinate system belong to different wide-range pixel points, and the three-channel data in the converted four-channel data is reduced relative to the three-channel data before conversion. Increase the numerical ratio of the channel to get the adjusted four-channel data.
  • the adjusting module includes:
  • the three-channel data adds the numerical ratio of the channel to the adjusted four-channel data.
  • the adjustment submodule includes:
  • a first adjusting unit configured to calculate a ratio of a distance between the coordinate points corresponding to the three-channel data before the conversion in the length of the connection, and to convert the converted four-channel data The value of the newly added channel of the previous three-channel data is reduced and adjusted, and the adjustment value of the newly added channel is obtained;
  • the second adjusting unit is configured to adjust the values of the other channels in the converted four-channel data according to the adjusted value of the newly added channel, to obtain the adjusted four-channel data.
  • the first adjusting unit includes:
  • a first adjustment subunit configured to sit the intersection point corresponding to the three-channel data before the conversion The ratio of the distance between the punctuation points in the length of the connection as the first adjustment factor;
  • a second adjustment subunit configured to perform, according to the first adjustment coefficient and a preset second adjustment coefficient, a value of a value of a newly added channel in the converted four-channel data relative to the three-channel data before the conversion, Obtain an adjustment value of the newly added channel.
  • the second adjustment subunit is configured to:
  • the value of the newly added channel in the converted four-channel data relative to the three-channel data before the conversion is multiplied by the first adjustment coefficient and the preset second adjustment coefficient to obtain an adjustment value of the newly added channel.
  • the three-channel data is RGB data
  • the four-channel data is RGBW data
  • the three-channel data of each pixel in the target image to be displayed is converted into four-channel data, and the chromaticity difference of the converted four-channel data and the three-channel data before the conversion meets a preset adjustment condition.
  • the pixel point reduces the numerical ratio of the newly added channel in the converted four-channel data relative to the three-channel data before the conversion, and obtains the adjusted four-channel data, and uses the adjusted four-channel data for display output, for the target image.
  • the pixels outside the pixel of the four-channel data are adjusted, and the converted four-channel data is used for display output.
  • the chromaticity difference before and after the conversion can be reduced, and thus, the chromaticity difference before and after the image conversion can be reduced.
  • FIG. 1 is a flowchart of a method for performing display output according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a chromaticity coordinate system provided by an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a chromaticity coordinate system provided by an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a chromaticity coordinate system provided by an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of RGBW conversion and adjustment provided by an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for performing display output according to an embodiment of the present invention. As shown in FIG. 1, the processing flow of the method may include the following steps:
  • Step 101 Convert three-channel data of each pixel in the target image to be displayed into four-channel data.
  • Step 102 Calculate a chrominance difference between the converted four-channel data and the three-channel data before the conversion.
  • Step 103 For the pixel point whose chrominance difference satisfies the preset adjustment condition, reduce the numerical ratio of the newly added channel in the converted four-channel data relative to the three-channel data before the conversion to obtain the adjusted four-channel data, and utilize The adjusted four-channel data is displayed and output.
  • step 104 for the remaining pixels, the converted four-channel data is used for display output.
  • the three-channel data of each pixel in the target image to be displayed is converted into four-channel data, and the chromaticity difference of the converted four-channel data and the three-channel data before the conversion meets a preset adjustment condition.
  • the pixel point reduces the numerical ratio of the newly added channel in the converted four-channel data relative to the three-channel data before the conversion, and obtains the adjusted four-channel data, and uses the adjusted four-channel data for display output; for the target image
  • the pixels outside the pixel of the four-channel data are adjusted, and the converted four-channel data is used for display output. In this way, the chromaticity difference before and after the conversion can be reduced for some pixel points, so that the chromaticity difference before and after the image conversion can be reduced.
  • the embodiment of the invention provides a display method, and the execution body of the method may be a display device.
  • the display device may be a display panel or a display or the like, and the display device is provided with a function of converting three-channel data into four-channel data.
  • the three-channel data can be any three-channel data, such as RGB data
  • the four-channel data can be any four-channel data, such as RGBW data.
  • a detailed description of the solution is made by taking three channels of data as RGB data and four channels of data as RGBW data as an example. Other cases are similar, and the present embodiment is not repeated.
  • Step 101 Convert three-channel data of each pixel in the target image to be displayed into four-channel data.
  • the target image may be an image frame that the display device is ready to display, and the display device may perform processing of the present process on all image frames to be displayed.
  • the processing method of converting the three-channel data into the four-channel data can be various, and any conversion manner can be adopted in this step.
  • RGB data into RGBW data as an example, first, the minimum value x of the three channel values of R, G, and B can be taken; ( ⁇ is a nonlinear conversion factor, generally takes a value of 2.5) Calculate the value W 1 of the W channel in the RGBW data; then subtract the value of the R, G, and B channels by W 1 to obtain R in the RGBW data.
  • value R G, B three channels 1, G 1, B 1, can be obtained RGBW data; last RGBW data may be utilized for adjusting the display output. This conversion ensures that the hue of the image before and after the conversion is unchanged.
  • Step 102 The pixels of the converted four-channel data and the chrominance difference of the three-channel data before the conversion meet the preset adjustment condition, and reduce the newly added channel of the converted four-channel data relative to the three-channel data before the conversion. The numerical ratio is obtained, and the adjusted four-channel data is obtained, and the adjusted four-channel data is used for display output.
  • the preset adjustment condition is a condition that reflects the chromaticity difference to a certain extent.
  • the preset adjustment condition may be that the chromaticity difference is large enough to be distinguishable by the naked eye.
  • the calculation of the chromaticity difference is various, and different calculation methods can correspond to different preset adjustment conditions.
  • the RGB data is converted to RGBW data
  • the new channel is the W channel.
  • the value of the W channel can be lowered by a
  • R and G are The values of the three channels of B and B are increased by a. This keeps the color tone the same.
  • the saturation change of the RGBW data with respect to the RGB data can be reduced, so that the chromaticity difference can be reduced.
  • the adjusted RGBW data can be displayed and output.
  • the chromaticity coordinate system can be used to determine the chromaticity difference before and after the conversion.
  • the processing of step 102 may be as follows: for the converted four-channel data and the three-channel data before the conversion, the corresponding coordinate points in the chromaticity coordinate system belong to different wide-range pixel points, and the converted four-channel data is reduced.
  • the adjusted four-channel data is obtained by adding the numerical ratio of the channel to the three-channel data before the conversion.
  • the chromaticity coordinate system may be a coordinate system that converts the values of the respective channels in the image data into coordinate values to quantize the chromaticity.
  • the CIE 1960 Chroma Coordinate System is a commonly used two-dimensional coordinate system.
  • the chromaticity coordinate system has corresponding conversion formulas for different image data for converting data of each channel in the image data into coordinate values in the chromaticity coordinate system.
  • the wide capacity range is a range in the chromaticity coordinate system for determining whether or not the chromaticity difference between two pixel points (in this embodiment, the pixel points before and after conversion) can be resolved by the human eye.
  • FIG. 2 is a schematic diagram of a chromaticity coordinate system provided by an embodiment of the present invention. As shown in Figure 2, only a few wide capacity ranges are schematically illustrated. In the actual chromaticity coordinate system, the range of the wide capacity range is very large and can cover the entire color gamut.
  • the converted RGBW data and the pre-converted RGB data may be converted into coordinate values in a chromaticity coordinate system, respectively. Then, it is determined whether the coordinate points corresponding to the converted RGBW data and the RGB data before conversion belong to the same wide capacity range in the chromaticity coordinate system. If it does not belong to the same wide capacity range, it means that the chrominance difference before and after the pixel point conversion can be distinguished by the human eye, that is, there is visual deviation, and the RGBW data of the pixel point can be adjusted.
  • the coordinate point in the chromaticity coordinate system may be adjusted to a wide capacity range in which the coordinate point corresponding to the RGB data before the conversion is located.
  • the corresponding processing may be as follows: for the converted four-channel data and the three-channel data before the conversion, the corresponding coordinate points in the chromaticity coordinate system belong to different wide-capacity pixel points, and in the chromaticity coordinate system, the pre-conversion is determined.
  • the boundary of the wide capacity range to which the coordinate point corresponding to the three-channel data belongs, and the coordinate point corresponding to the converted four-channel data and the three channels before the conversion a line connecting the coordinate points corresponding to the data, and determining an intersection of the boundary with the line; the distance between the coordinate points corresponding to the three-channel data before the conversion is occupied by the length of the line.
  • the ratio reduces the numerical ratio of the newly added channel in the converted four-channel data relative to the three-channel data before the conversion, and obtains the adjusted four-channel data.
  • FIG. 3 is a schematic diagram of a chromaticity coordinate system provided by an embodiment of the present invention.
  • T is a coordinate point corresponding to the RGB data before conversion in the chromaticity coordinate system
  • F is a coordinate point corresponding to the converted RGBW data.
  • the boundary of the wide capacity range to which T belongs can be determined in the chromaticity coordinate system, and the connection between T and F can be determined, and the intersection F' of the boundary with the connection can be determined. Further, it is possible to determine the proportion of the line segment length of TF' in the line segment length of TF.
  • the process of converting RGBW data or RGB data into coordinate values in the chromaticity coordinate system is a linear transformation, the ratio of the adjustment value b of the W channel to the value W 1 of the W channel before the adjustment, and the line segment TF' occupies in the line segment TF The ratios are equal.
  • b is determined such that the ratio of b to W 1 is less than or equal to the ratio, so that the adjusted coordinate point F 1 of the RGBW data in the chromaticity coordinate system belongs to T Within a wide capacity range.
  • FIG. 4 is a schematic diagram of a chromaticity coordinate system provided by an embodiment of the present invention. Further, as shown in FIG. 4, the data may be RGBW chromaticity coordinates corresponding to the coordinate point F 1 is adjusted to the position of the intersection point F 'positions, corresponding formula may be as follows:
  • the values of the R, G, and B channels can be increased, and the corresponding processing can be as follows: The ratio of the distance between the coordinate points corresponding to the three-channel data before the conversion in the length of the above-mentioned connection line, and the value of the newly added channel in the converted four-channel data relative to the three-channel data before the conversion is adjusted and adjusted. The adjustment value of the newly added channel is obtained; according to the adjustment value of the newly added channel, the values of the other channels in the converted four-channel data are adjusted to obtain the adjusted four-channel data.
  • the value of the W channel when the value of the W channel is adjusted as described above, the value of the W channel is lowered by b, and the values of the R, G, and B channels can be raised by b accordingly, thereby obtaining four channels of R, G, B, and W.
  • the final value, the corresponding calculation formula can be as follows:
  • R 1 and R 2 are values before and after the adjustment of the R channel, respectively
  • G 1 and G 2 are values before and after the adjustment of the G channel, respectively
  • B 1 and B 2 are values before and after the adjustment of the B channel, respectively.
  • an adjustment coefficient ⁇ may be introduced to determine the adjustment value of the W channel.
  • the corresponding processing manner may be as follows: the ratio of the distance between the coordinate points corresponding to the three-channel data before the conversion in the length of the connection is used as the first adjustment coefficient (ie, ⁇ ); An adjustment coefficient and a preset second adjustment coefficient are used to reduce and adjust the value of the newly added channel in the converted four-channel data relative to the three-channel data before the conversion, to obtain an adjustment value of the newly added channel.
  • the value of the newly added channel of the converted three-channel data relative to the converted three-channel data may be multiplied by the first adjustment coefficient and the preset second adjustment coefficient to obtain an adjustment value of the newly added channel.
  • the adjustment value b of the W channel can be determined by the following calculation formula:
  • ⁇ is a preset second adjustment coefficient
  • the second adjustment coefficient ⁇ is set to adjust the value of the W channel to reduce the power consumption of the display device when the chromaticity difference is small.
  • the value of ⁇ can be determined by a large number of experiments.
  • Step 103 Perform pixel display output by using the converted four-channel data for the pixel points other than the pixel point of the four-channel data in the target image.
  • the RGBW data when performing data conversion, if the chromaticity difference between the RGBW data after a pixel conversion and the RGB data before conversion is relatively small, and the above preset adjustment condition is not satisfied, the RGBW data may not be adjusted directly. Display output with RGBW data without adjustment
  • the target image may be any image frame in the display device display output process.
  • FIG. 5 is a schematic diagram of RGBW conversion and adjustment according to an embodiment of the present invention.
  • three-channel data of each pixel in the target image to be displayed is converted into four-channel data, and the converted four-channel data and the three-channel data before conversion are converted.
  • the pixel whose chromaticity difference satisfies the preset adjustment condition reduces the numerical ratio of the newly added channel of the converted four-channel data relative to the three-channel data before the conversion, and obtains the adjusted four-channel data, and uses the adjusted four-channel data.
  • the display output is performed, and the remaining pixels other than the pixels for adjusting the four-channel data in the target image are displayed and outputted by using the converted four-channel data.
  • the chromaticity difference before and after the conversion can be reduced, so that the chromaticity difference before and after the image conversion can be reduced.
  • FIG. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention. Based on the same technical concept, as shown in FIG. 6, the device includes:
  • a conversion module 610 configured to convert three-channel data of each pixel in the target image to be displayed into four-channel data
  • the adjusting module 620 is configured to calculate a chrominance difference between the converted four-channel data and the three-channel data before the conversion, and reduce the conversion of the converted four-channel data with respect to the pixel point where the chromaticity difference satisfies the preset adjustment condition.
  • the previous three-channel data adds the numerical ratio of the channel to obtain the adjusted four-channel data;
  • the display module 630 is configured to perform pixel display for adjusting four-channel data in the target image by using the adjusted four-channel data; and for adjusting pixel points other than the pixel of the four-channel data in the target image, The converted four-channel data is used for display output.
  • the adjusting module 620 is configured to:
  • the corresponding coordinate points in the chromaticity coordinate system belong to different wide-range pixel points, and the three-channel data in the converted four-channel data is reduced relative to the three-channel data before conversion. Increase the numerical ratio of the channel to get the adjusted four-channel data.
  • the adjusting module 620 includes:
  • Adjusting a sub-module for using coordinates corresponding to the intersection data and the three-channel data before conversion The ratio of the distance between the points in the length of the connection line reduces the numerical ratio of the newly added channel in the converted four-channel data relative to the three-channel data before the conversion, and the adjusted four-channel data is obtained.
  • the adjusting submodule includes:
  • a first adjusting unit configured to calculate a ratio of a distance between the coordinate points corresponding to the three-channel data before the conversion in the length of the connection, and to convert the converted four-channel data The value of the newly added channel of the previous three-channel data is reduced and adjusted, and the adjustment value of the newly added channel is obtained;
  • the second adjusting unit is configured to adjust the values of the other channels in the converted four-channel data according to the adjusted value of the newly added channel, to obtain the adjusted four-channel data.
  • the first adjusting unit includes:
  • a first adjustment subunit configured to use a ratio of a distance between the coordinate point corresponding to the three-channel data before the conversion to a length of the connection as a first adjustment coefficient
  • a second adjusting sub-unit configured to perform, according to the first adjustment coefficient and the preset second adjustment coefficient, a reduction and a value of a newly added channel in the converted four-channel data relative to the three-channel data before the conversion, to obtain The adjustment value of the newly added channel.
  • the second adjustment subunit is configured to:
  • the three-channel data is RGB data
  • the four-channel data is RGBW data
  • the three-channel data of each pixel in the target image to be displayed is converted into four-channel data, and the chromaticity difference of the converted four-channel data and the three-channel data before the conversion meets a preset adjustment condition.
  • the pixel point reduces the numerical ratio of the newly added channel in the converted four-channel data relative to the three-channel data before the conversion, and obtains the adjusted four-channel data, and uses the adjusted four-channel data for display output; and for the target image
  • the remaining pixels other than the pixels of the four-channel data are adjusted, and the converted four-channel data is used for display output. This can reduce the chromaticity difference before and after the conversion for some pixels, so that the chromaticity difference before and after the image conversion can be reduced.
  • the display device disclosed by the present invention may be any product or component having a display function such as a liquid crystal panel, an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • a display function such as a liquid crystal panel, an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the display device provided by the foregoing embodiment performs display output
  • only the division of each functional module described above is illustrated.
  • the function distribution may be completed by different functional modules as needed.
  • the internal structure of the device is divided into different functional modules to perform all or part of the functions described above.
  • the device for performing the display output provided by the above embodiment is the same as the method for performing the display output. The specific implementation process is described in detail in the method embodiment, and details are not described herein again.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

一种进行显示输出的方法和显示设备，所述方法包括：将待显示的目标图像中每个像素点的三通道数据转换为四通道数据；对于转换后的四通道数据与转换前的三通道数据的色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据，利用调整后的四通道数据进行显示输出；对于所述目标图像中调整四通道数据的像素点之外的像素点，利用转换后的四通道数据进行显示输出，这样可以减小图像转换前后的色度差。

Description

显示方法和显示设备
相关申请的交叉引用
本申请要求了2015年4月20日提交的、申请号为201510188622.6的发明名称为“一种进行显示输出的方法和显示设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及显示技术领域，特别涉及一种显示方法和显示设备。
背景技术
随着显示技术的发展，目前广泛使用的显示设备(如显示面板、显示器等)大多采用RGB(红绿蓝)三色技术，每个像素的RGB数据可以包括R、G、B三个通道的数值。为了提高显示亮度，在RGB三色技术的基础上进行改进，产生了RGBW(红绿蓝白)四色技术。很多显示设备中设置了将RGB数据转换为RGBW数据的功能。
在将RGB数据转换为RGBW数据的过程中：首先取R、G、B三个通道数值中的最小值x，再基于
Figure PCTCN2015090376-appb-000001
(λ为非线性转换因子，一般取值为2.5)计算得到RGBW数据中W通道的数值W1，之后将R、G、B三个通道的数值分别减去W1，得到RGBW数据中R、G、B三个通道的数值R1、G1、B1，从而可以得到RGBW数据，最后可以利用RGBW数据进行显示输出。
在实现本发明的过程中，发明人发现现有技术至少存在以下问题：
基于上述转换处理，每个像素点经转换后，色调没有发生改变；但是由于W通道的数值的加入，转换后的各像素点的饱和度会有不同程度的下降。由于像素点的色度由色调和饱和度共同决定，所以各像素点转换后与转换前的色度出现色度差，从而导致图像转换前后色度差较大。
发明内容
为了解决现有技术的问题，本发明实施例提供了一种显示方法和显示设备。所述技术方案如下：
一方面，提供了一种显示方法，所述显示方法包括：
将待显示的目标图像中每个像素点的三通道数据转换为四通道数据；
计算转换后的四通道数据与转换前的三通道数据的色度差；
对于所述色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据，利用调整后的四通道数据进行显示输出；以及
对于其余像素点，利用转换后的四通道数据进行显示输出。
可选地，所述所述色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例得到调整后的四通道数据，包括：
对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据。
可选地，所述对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据，包括：
对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，在色度坐标系中，确定转换前的三通道数据对应的坐标点所属的宽容量范围的边界，以及转换后的四通道数据对应的坐标点与转换前的三通道数据对应的坐标点之间的连线，并确定所述边界与所述连线的交点；以及
根据所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据。
可选地，所述根据所述交点与转换前的三通道数据对应的坐标点之 间的距离在所述连线的长度中所占的比例，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据，包括：
根据所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值；以及
根据所述新增通道的调整值，对转换后的四通道数据中其它通道的数值进行调整，得到调整后的四通道数据。
可选地，所述根据所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值，包括：
将所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，作为第一调整系数；以及
根据所述第一调整系数以及预设的第二调整系数，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值。
可选地，所述根据所述第一调整系数，以及预设的第二调整系数，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值，包括：
将转换后的四通道数据中相对于转换前的三通道数据新增通道的数值与所述第一调整系数和预设的第二调整系数相乘，得到所述新增通道的调整值。
可选地，所述三通道数据为RGB数据，所述四通道数据为RGBW数据。
另一方面，提供了一种显示装置，所述显示装置包括：
转换模块，用于将待显示的目标图像中每个像素点的三通道数据转换为四通道数据；
调整模块，用于计算转换后的四通道数据与转换前的三通道数据的 色度差，并且对于满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据；
显示模块，用于对于所述目标图像中调整四通道数据的像素点，利用调整后的四通道数据进行显示输出；对于所述目标图像中调整四通道数据的像素点之外的像素点，利用转换后的四通道数据进行显示输出。
可选地，所述调整模块用于：
对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据。
可选地，所述调整模块包括：
确定子模块，用于对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，在色度坐标系中，确定转换前的三通道数据对应的坐标点所属的宽容量范围的边界，以及转换后的四通道数据对应的坐标点与转换前的三通道数据对应的坐标点之间的连线，并确定所述边界与所述连线的交点；以及
调整子模块，用于根据所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据。
可选地，所述调整子模块包括：
第一调整单元，用于根据所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值；以及
第二调整单元，用于根据所述新增通道的调整值，对转换后的四通道数据中其它通道的数值进行调整，得到调整后的四通道数据。
可选地，所述第一调整单元包括：
第一调整子单元，用于将所述交点与转换前的三通道数据对应的坐 标点之间的距离在所述连线的长度中所占的比例，作为第一调整系数；
第二调整子单元，用于根据所述第一调整系数，以及预设的第二调整系数，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值。
可选地，所述第二调整子单元用于：
将转换后的四通道数据中相对于转换前的三通道数据新增通道的数值，与所述第一调整系数和预设的第二调整系数相乘，得到所述新增通道的调整值。
可选地，所述三通道数据为RGB数据，所述四通道数据为RGBW数据。
本发明实施例提供的技术方案带来的有益效果是：
本发明实施例中，将待显示的目标图像中每个像素点的三通道数据转换为四通道数据，对于转换后的四通道数据与转换前的三通道数据的色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据，利用调整后的四通道数据进行显示输出，对于目标图像中调整四通道数据的像素点之外的像素点，利用转换后的四通道数据进行显示输出。这样，可以对于一些像素点，可以减小转换前后的色度差，从而，可以减小图像转换前后的色度差。
附图说明
为了更清楚地说明本发明实施例中的技术方案，，下面参考附图描述本发明的具体实施例，其中：
图1是本发明实施例提供的进行显示输出的方法流程图；
图2是本发明实施例提供的色度坐标系的示意图；
图3是本发明实施例提供的色度坐标系的示意图；
图4是本发明实施例提供的色度坐标系的示意图；
图5是本发明实施例提供的RGBW转换和调整的示意图；以及
图6是本发明实施例提供的显示装置的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
本发明实施例提供了一种显示方法。图1是本发明实施例提供的进行显示输出的方法流程图。如图1所示，该方法的处理流程可以包括如下步骤：
步骤101，将待显示的目标图像中每个像素点的三通道数据转换为四通道数据。
步骤102，计算转换后的四通道数据与转换前的三通道数据的色度差。
步骤103，对于所述色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例以得到调整后的四通道数据，利用调整后的四通道数据进行显示输出。
步骤104，对于其余像素点，利用转换后的四通道数据进行显示输出。
本发明实施例中，将待显示的目标图像中每个像素点的三通道数据转换为四通道数据，对于转换后的四通道数据与转换前的三通道数据的色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据，利用调整后的四通道数据进行显示输出；对于目标图像中调整四通道数据的像素点之外的像素点，利用转换后的四通道数据进行显示输出。这样，可以对于一些像素点可以减小转换前后的色度差，从而可以减小图像转换前后的色度差。
本发明实施例提供了一种显示方法，该方法的执行主体可以为显示设备。该显示设备可以为显示面板或显示器等，该显示设备设置有将三通道数据转换为四通道数据的功能。其中，三通道数据可以为任意三通道数据，如RGB数据，四通道数据可以为任意四通道数据，如RGBW数据。本实施例中，以三通道数据为RGB数据、四通道数据为RGBW数据为例进行方案的详细说明，其它情况与之类似，本实施例不再累述。
下面将结合具体的实施方式，对图1所示的处理流程进行详细的说明，内容可以如下：
步骤101，将待显示的目标图像中每个像素点的三通道数据转换为四通道数据。
其中，目标图像可以是显示设备准备显示的一个图像帧，显示设备可以对所有将要显示的图像帧进行本流程的处理。
在实施中，将三通道数据转换为四通道数据的处理方式可以多种多样，该步骤中可以采用任意的转换方式。以RGB数据转换为RGBW数据为例，首先，可以取R、G、B三个通道数值中的最小值x；再基于
Figure PCTCN2015090376-appb-000002
(λ为非线性转换因子，一般取值为2.5)计算得到RGBW数据中W通道的数值W1；之后将R、G、B三个通道的数值分别减去W1，得到RGBW数据中R、G、B三个通道的数值R1、G1、B1，从而可以得到RGBW数据；最后可以利用调整后的RGBW数据进行显示输出。这样转换可以保证转换前后图像的色调不变。
步骤102，对于转换后的四通道数据与转换前的三通道数据的色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据，利用调整后的四通道数据进行显示输出。
预设调整条件是反映色度差大到一定程度的条件。例如，预设调整条件可以是色度差大到肉眼能够分辨。色度差的计算方式多种多样，不同的计算方式可以对应不同的预设调整条件。
在实施中，将RGB数据转换为RGBW数据，那么新增的通道即为W通道。在进行数据转换时，如果某像素点转换后的RGBW数据与转换前的RGB数据的色度差比较大，满足了预设调整条件，则可以将W通道的数值降低a，并将R、G、B三个通道的数值都增加a。这样可以保持色调不变。同时由于减少了W通道的数值，即减少了白色的成分，所以可以降低RGBW数据相对于RGB数据的饱和度变化，从而可以降低色度差。对于上述调整RGBW数据的像素点，可以对调整后的RGBW数据进行显示输出。
可选的，可以采用色度坐标系来进行转换前后的色度差判定。相应 的，步骤102的处理可以如下：对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据。
其中，色度坐标系可以是将图像数据中各通道的数值转换为坐标值以对色度进行量化的坐标系。例如CIE1960色度坐标系是一种常用的二维坐标系。色度坐标系对于不同的图像数据设置有相应的转换公式，用于将图像数据中各通道的数据转换为色度坐标系中的坐标值。宽容量范围是色度坐标系中用于判定两个像素点(本实施例中即为转换前后的像素点)之间的色度差是否能够被人眼分辨的范围。如果两个像素点在色度坐标系中对应的坐标在同一个宽容量范围内，则说明它们之间的色度差无法被人眼分辨，否则说明它们之间的色度差可以被人眼分辨。在色度坐标系中设置有大量的宽容量范围。图2是本发明实施例提供的色度坐标系的示意图。如图2所示，图中只示意性地画出了几个宽容量范围。在实际的色度坐标系中，宽容量范围的范围是非常庞大的，而且能够覆盖整个色域。
在实施中，对于每个像素点，可以将转换后的RGBW数据和转换前的RGB数据分别转换为色度坐标系中的坐标值。然后判定转换后的RGBW数据和转换前的RGB数据对应的坐标点在色度坐标系中是否属于同一个宽容量范围。如果不属于同一个宽容量范围，则说明像素点转换前后的色度差能够被人眼分辨，即存在视觉偏差，可以对像素点的RGBW数据进行调整。如果属于同一宽容量范围，则说明像素点转换前后的色度差不能被人眼分辨，即不存在视觉偏差，可以不对像素点的RGBW数据进行调整。相应的调整方式可以参见上面的内容。
可选的，在对像素点的RGBW数据进行调整时，可以将其在色度坐标系中的坐标点调节到转换前的RGB数据对应的坐标点所在的宽容量范围内。相应的处理过程可以如下：对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，在色度坐标系中，确定转换前的三通道数据对应的坐标点所属的宽容量范围的边界，以及转换后的四通道数据对应的坐标点与转换前的三通道 数据对应的坐标点之间的连线，并确定该边界与该连线的交点；根据该交点与转换前的三通道数据对应的坐标点之间的距离在该连线的长度中所占的比例，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据。
图3是本发明实施例提供的色度坐标系的示意图。在实施中，如图3所示，T为转换前的RGB数据在色度坐标系中对应的坐标点，F为转换后的RGBW数据对应的坐标点。可以在色度坐标系中确定T所属的宽容量范围的边界，并确定T与F的连线，进而可以确定该边界与该连线的交点F’。进而可以确定TF’的线段长度在TF的线段长度中所占的比例。RGBW数据或RGB数据转换为色度坐标系中的坐标值的过程为线性变换，W通道的调整数值b与调整前的W通道的数值W1的比值，与线段TF’在线段TF中占的比例相等。可以根据线段TF’在线段TF中占的比例，确定b使b与W1的比值小于或等于该比例，以使调整后的RGBW数据在色度坐标系中对应的坐标点F1在T所属的宽容量范围内。
图4是本发明实施例提供的色度坐标系的示意图。进一步的，如图4所示，可以将RGBW数据在色度坐标系中对应的坐标点F1的位置调整到上述交点F’的位置，相应的计算公式可以如下：
Figure PCTCN2015090376-appb-000003
可选的，为了保证在调整的过程中像素点的色调不发生变化，在降低W通道的数值时，可以将R、G、B通道的数值进行提升，相应的处理可以如下：根据上述交点与转换前的三通道数据对应的坐标点之间的距离在上述连线的长度中所占的比例，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到新增通道的调整值；根据新增通道的调整值，对转换后的四通道数据中其它通道的数值进行调整，得到调整后的四通道数据。
在实施中，上述将W通道的数值进行调整时，W通道的数值降低了b，则相应地可以将R、G、B通道的数值提升b，从而得到R、G、B、W四个通道的最终数值，相应的计算公式可以如下：
R2＝R1+b，G2＝G1+b，B2＝B1+b...................................................(2)
其中，R1和R2分别为R通道调整前后的数值，G1和G2分别为G通道调整前后的数值，B1和B2分别为B通道调整前后的数值。
可选的，考虑到显示设备降低功耗的目的，可以引入一个调整系数α，对W通道的调整数值进行确定。相应的处理方式可以如下：将上述交点与转换前的三通道数据对应的坐标点之间的距离在上述连线的长度中所占的比例，作为第一调整系数(即上述β)；根据第一调整系数以及预设的第二调整系数，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到新增通道的调整值。
进一步的，可以将转换后的四通道数据中相对于转换前的三通道数据新增通道的数值与第一调整系数和预设的第二调整系数相乘，得到所述新增通道的调整值。
在实施中，可以通过如下计算公式确定W通道的调整数值b：
b＝αβW1.................................................................................(3)
其中，α为预设的第二调整系数，设置第二调整系数α是为了通过对W通道的数值进行调整，在保证色度差较小的情况下，降低显示设备的功耗。α的数值可以通过大量实验进行统计来确定。
步骤103，对于目标图像中调整四通道数据的像素点之外的像素点，利用转换后的四通道数据进行显示输出。
在实施中，在进行数据转换时，如果某像素点转换后的RGBW数据与转换前的RGB数据的色度差比较小，不满足上述预设调整条件，则可以不对此RGBW数据进行调整，直接利用没有调整的RGBW数据进行显示输出
通过上述对色度差较大的像素点和对色度差较小的像素点的不同处理，可以降低整个目标图像的色度差。目标图像可以是显示设备显示输出过程中的任一图像帧。
图5是本发明实施例提供的RGBW转换和调整的示意图。如图5所示，本发明实施例中，将待显示的目标图像中每个像素点的三通道数据转换为四通道数据，对于转换后的四通道数据与转换前的三通道数据的 色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据，利用调整后的四通道数据进行显示输出，对于目标图像中调整四通道数据的像素点之外的其余像素点，利用转换后的四通道数据进行显示输出。这样，可以对于一些像素点，可以减小转换前后的色度差，从而可以减小图像转换前后的色度差。
图6是本发明实施例提供的显示装置的结构示意图。基于相同的技术构思，如图6所示，所述装置包括：
转换模块610，用于将待显示的目标图像中每个像素点的三通道数据转换为四通道数据；
调整模块620，用于计算转换后的四通道数据与转换前的三通道数据的色度差，并且对于色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例以得到调整后的四通道数据；以及
显示模块630，用于对于所述目标图像中调整四通道数据的像素点，利用调整后的四通道数据进行显示输出；对于所述目标图像中调整四通道数据的像素点之外的像素点，利用转换后的四通道数据进行显示输出。
可选地，所述调整模块620，用于：
对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据。
可选地，所述调整模块620，包括：
确定子模块，用于对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，在色度坐标系中，确定转换前的三通道数据对应的坐标点所属的宽容量范围的边界，以及转换后的四通道数据对应的坐标点与转换前的三通道数据对应的坐标点之间的连线，并确定所述边界与所述连线的交点；以及
调整子模块，用于根据所述交点与转换前的三通道数据对应的坐标 点之间的距离在所述连线的长度中所占的比例，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据。
可选地，所述调整子模块，包括：
第一调整单元，用于根据所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值；
第二调整单元，用于根据所述新增通道的调整值，对转换后的四通道数据中其它通道的数值进行调整，得到调整后的四通道数据。
可选地，所述第一调整单元包括：
第一调整子单元，用于将所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，作为第一调整系数；
第二调整子单元，用于根据所述第一调整系数以及预设的第二调整系数，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值。
可选地，所述第二调整子单元，用于：
将转换后的四通道数据中相对于转换前的三通道数据新增通道的数值与所述第一调整系数和预设的第二调整系数相乘，得到所述新增通道的调整值。
可选地，所述三通道数据为RGB数据，所述四通道数据为RGBW数据。
本发明实施例中，将待显示的目标图像中每个像素点的三通道数据转换为四通道数据，对于转换后的四通道数据与转换前的三通道数据的色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据，利用调整后的四通道数据进行显示输出；而对于目标图像中调整四通道数据的像素点之外的其余像素点，利用转换后的四通道数据进行显示输出。这样对于一些像素点可以减小转换前后的色度差，从而可以减小图像转换前后的色度差。
本发明还公开了的显示装置可以为：液晶面板、电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
需要说明的是：上述实施例提供的显示的装置在进行显示输出时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的进行显示输出的装置与进行显示输出的方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (14)

  1. 一种显示方法，其特征在于，所述显示方法包括：
    将待显示的目标图像中每个像素点的三通道数据转换为四通道数据；
    计算转换后的四通道数据与转换前的三通道数据的色度差；
    对于所述色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例以得到调整后的四通道数据，利用调整后的四通道数据进行显示输出；以及
    对于其余像素点，利用转换后的四通道数据进行显示输出。
  2. 根据权利要求1所述的方法，其特征在于，所述对于所述色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例得到调整后的四通道数据包括：
    对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据。
  3. 根据权利要求2所述的方法，其特征在于，所述对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据，包括：
    对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，在色度坐标系中，确定转换前的三通道数据对应的坐标点所属的宽容量范围的边界，以及转换后的四通道数据对应的坐标点与转换前的三通道数据对应的坐标点之间的连线，并确定所述边界与所述连线的交点；以及
    根据所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据。
  4. 根据权利要求3所述的方法，其特征在于，所述根据所述交点 与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据，包括：
    根据所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值；
    根据所述新增通道的调整值，对转换后的四通道数据中其它通道的数值进行调整，得到调整后的四通道数据。
  5. 根据权利要求4所述的方法，其特征在于，所述根据所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值，包括：
    将所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，作为第一调整系数；以及
    根据所述第一调整系数以及预设的第二调整系数，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值。
  6. 根据权利要求5所述的方法，其特征在于，所述根据所述第一调整系数以及预设的第二调整系数，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值，包括：
    将转换后的四通道数据中相对于转换前的三通道数据新增通道的数值与所述第一调整系数和预设的第二调整系数相乘，得到所述新增通道的调整值。
  7. 根据权利要求1所述的方法，其特征在于，所述三通道数据为RGB数据，所述四通道数据为RGBW数据。
  8. 一种显示装置，其特征在于，所述显示装置包括：
    转换模块，用于将待显示的目标图像中每个像素点的三通道数据转换为四通道数据；
    调整模块，用于计算转换后的四通道数据与转换前的三通道数据的色度差，并且对于色度差满足预设调整条件的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例以得到调整后的四通道数据；
    显示模块，用于对于所述目标图像中调整四通道数据的像素点，利用调整后的四通道数据进行显示输出；对于所述目标图像中调整四通道数据的像素点之外的像素点，利用转换后的四通道数据进行显示输出。
  9. 根据权利要求8所述的装置，其特征在于，所述调整模块用于：
    对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据。
  10. 根据权利要求9所述的装置，其特征在于，所述调整模块包括：
    确定子模块，用于对于转换后的四通道数据与转换前的三通道数据在色度坐标系中对应的坐标点属于不同宽容量范围的像素点，在色度坐标系中，确定转换前的三通道数据对应的坐标点所属的宽容量范围的边界，以及转换后的四通道数据对应的坐标点与转换前的三通道数据对应的坐标点之间的连线，并确定所述边界与所述连线的交点；以及
    调整子模块，用于根据所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，降低转换后的四通道数据中相对于转换前的三通道数据新增通道的数值比例，得到调整后的四通道数据。
  11. 根据权利要求10所述的装置，其特征在于，所述调整子模块包括：
    第一调整单元，用于根据所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值；以及
    第二调整单元，用于根据所述新增通道的调整值，对转换后的四通道数据中其它通道的数值进行调整，得到调整后的四通道数据。
  12. 根据权利要求11所述的装置，其特征在于，所述第一调整单元包括：
    第一调整子单元，用于将所述交点与转换前的三通道数据对应的坐标点之间的距离在所述连线的长度中所占的比例，作为第一调整系数；
    第二调整子单元，用于根据所述第一调整系数，以及预设的第二调整系数，对转换后的四通道数据中相对于转换前的三通道数据新增通道的数值进行降低调整，得到所述新增通道的调整值。
  13. 根据权利要求12所述的装置，其特征在于，所述第二调整子单元用于：
    将转换后的四通道数据中相对于转换前的三通道数据新增通道的数值与所述第一调整系数和预设的第二调整系数相乘，得到所述新增通道的调整值。
  14. 根据权利要求8所述的装置，其特征在于，所述三通道数据为RGB数据，所述四通道数据为RGBW数据。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006135744A (ja) * 2004-11-08 2006-05-25 Sony Corp 画像処理装置、および画像処理方法、並びにコンピュータ・プログラム
CN101860762A (zh) * 2010-06-08 2010-10-13 深圳磊明科技有限公司 一种rgb三色转rgbw四色的系统
KR20130030598A (ko) * 2011-09-19 2013-03-27 엘지디스플레이 주식회사 ＲＧＢ-ｔｏ-ＲＧＢＷ 변환방법과 이를 이용한 표시장치
CN103747223A (zh) * 2014-01-15 2014-04-23 京东方科技集团股份有限公司 色域调整装置、方法及显示系统
CN104376833A (zh) * 2014-11-19 2015-02-25 深圳市华星光电技术有限公司 一种rgb数据到rgbw数据的转换系统及转换方法
CN104795050A (zh) * 2015-04-20 2015-07-22 京东方科技集团股份有限公司 一种进行显示输出的方法和显示设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5430068B2 (ja) * 2008-02-15 2014-02-26 株式会社ジャパンディスプレイ 表示装置
TW201407579A (zh) * 2012-08-09 2014-02-16 新力股份有限公司 色信號處理電路、色信號處理方法、顯示裝置及電子機器
KR102090705B1 (ko) * 2012-09-07 2020-03-19 삼성디스플레이 주식회사 표시 장치 및 표시 장치의 구동 방법
KR102048925B1 (ko) 2012-12-28 2019-11-27 삼성디스플레이 주식회사 표시 장치 및 표시 장치의 구동 방법
CN104091578B (zh) 2014-06-25 2016-03-02 京东方科技集团股份有限公司 一种rgb信号到rgbw信号的图像转换方法及装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006135744A (ja) * 2004-11-08 2006-05-25 Sony Corp 画像処理装置、および画像処理方法、並びにコンピュータ・プログラム
CN101860762A (zh) * 2010-06-08 2010-10-13 深圳磊明科技有限公司 一种rgb三色转rgbw四色的系统
KR20130030598A (ko) * 2011-09-19 2013-03-27 엘지디스플레이 주식회사 ＲＧＢ-ｔｏ-ＲＧＢＷ 변환방법과 이를 이용한 표시장치
CN103747223A (zh) * 2014-01-15 2014-04-23 京东方科技集团股份有限公司 色域调整装置、方法及显示系统
CN104376833A (zh) * 2014-11-19 2015-02-25 深圳市华星光电技术有限公司 一种rgb数据到rgbw数据的转换系统及转换方法
CN104795050A (zh) * 2015-04-20 2015-07-22 京东方科技集团股份有限公司 一种进行显示输出的方法和显示设备

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