WO2020093443A1 - 像素信号转换方法及装置 - Google Patents

像素信号转换方法及装置 Download PDF

Info

Publication number
WO2020093443A1
WO2020093443A1 PCT/CN2018/116231 CN2018116231W WO2020093443A1 WO 2020093443 A1 WO2020093443 A1 WO 2020093443A1 CN 2018116231 W CN2018116231 W CN 2018116231W WO 2020093443 A1 WO2020093443 A1 WO 2020093443A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
sub
pixel
initial
value signal
Prior art date
Application number
PCT/CN2018/116231
Other languages
English (en)
French (fr)
Inventor
康志聪
Original Assignee
惠科股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 惠科股份有限公司 filed Critical 惠科股份有限公司
Priority to US17/043,305 priority Critical patent/US11238817B2/en
Publication of WO2020093443A1 publication Critical patent/WO2020093443A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/3413—Details of control of colour illumination sources
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation

Definitions

  • the present application relates to a pixel signal conversion method and device.
  • the three-color light sources generated by the three sub-pixels of R (Red), G (Green), and B (Blue) generally mix colors to produce the desired display color.
  • the three-color light source of R, G and B absorbs the photoresist material of the three sub-pixels of R, G and B to absorb the light band of the non-R, G and B sub-pixel units, so that the three sub-pixels of R, G and B produce corresponding R, G, B three-color light source.
  • the inventor realized that there is a defect of large-vision role deviation when the R, G, and B sub-pixel signals are used for driving on a mixed color display composed of W, R, G, and B sub-pixels.
  • a pixel signal conversion method and device are provided.
  • a pixel signal conversion method includes the steps of:
  • the pixel signal includes an initial first sub-pixel signal, an initial second sub-pixel signal, and an initial third sub-pixel signal; the pixel signal is used to drive R sub-pixels and G sub-pixels in a specific pixel unit Pixels and B sub-pixels;
  • a fourth sub-pixel signal is obtained according to the minimum value in the set of stimulation values;
  • the set of stimulation values includes one of the first stimulation value signal, one of the second stimulation value signal, and one of the third stimulation value signal ;
  • the initial first sub-pixel signal, initial second sub-pixel signal, initial third sub-pixel signal, and fourth sub-pixel signal are used as converted pixel signals; the converted pixel signals are used to drive the specific The R sub-pixel, G sub-pixel, B sub-pixel, and W sub-pixel in the pixel unit.
  • the process of obtaining the fourth sub-pixel signal according to the minimum value in the stimulus value signal set includes the steps of:
  • the fourth stimulation value signal is a WX stimulation value signal, a WY stimulation value signal or a WZ stimulation value signal
  • the fourth stimulus value signal is the WY stimulus value signal.
  • the first stimulation value signal is an RX stimulation value signal, a RY stimulation value signal, or an RZ stimulation value signal;
  • the second stimulation value signal is a GX stimulation value signal, a GY stimulation value signal or a GZ stimulation value signal;
  • the third stimulation value signal is a BX stimulation value signal, a BY stimulation value signal, or a BZ stimulation value signal.
  • the stimulus value signal set includes the RY stimulus value signal, the GY stimulus value signal, and the BY stimulus value signal.
  • the set of stimulation value signals includes the RX stimulation value signal, the GY stimulation value signal, and the BZ stimulation value signal.
  • the process of obtaining each first stimulus value signal of the initial first sub-pixel signal according to the initial first sub-pixel signal is as follows:
  • RX is the RX stimulation value signal
  • RY is the RY stimulation value signal
  • RZ is the RZ stimulation value signal
  • R is the initial first sub-pixel signal
  • GX is the GX stimulation value signal
  • GY is the The GY stimulation value signal
  • GZ is the GZ stimulation value signal
  • G is the initial second sub-pixel signal
  • BX is the BX stimulation value signal
  • BY is the BY stimulation value signal
  • BZ is the BZ stimulation Value signal
  • B is the initial third sub-pixel signal
  • T is the maximum pixel signal
  • ⁇ RX, ⁇ RY, and ⁇ RZ are the power functions of the stimulus value of the initial first subpixel signal; ⁇ GX, ⁇ GY, and ⁇ GZ are the power functions of the stimulus value of the initial second subpixel signal; ⁇ BX, ⁇ BY, and ⁇ BZ are the initial third Power function of the stimulus value of the sub-pixel signal.
  • a pixel signal conversion device including:
  • a pixel signal acquisition module for acquiring a pixel signal; the pixel signal includes an initial first sub-pixel signal, an initial second sub-pixel signal, and an initial third sub-pixel signal; the pixel signal is used to correspondingly drive a specific pixel unit R sub-pixel, G sub-pixel and B sub-pixel;
  • the signal processing module is configured to obtain each first stimulus value signal of the initial first sub-pixel signal according to the initial first sub-pixel signal, and obtain the initial second sub-pixel according to the initial second sub-pixel signal Each second stimulation value signal of the signal, and each third stimulation value signal of the initial third sub-pixel signal is obtained according to the initial third sub-pixel signal;
  • the W sub-pixel obtaining module is used to obtain a fourth sub-pixel signal according to the minimum value in the set of stimulation value signals;
  • the set of stimulation value signals includes one of the first stimulation value signal, and one of the second stimulation value signal and A signal of the third stimulus value;
  • a signal conversion module configured to use the initial first sub-pixel signal, initial second sub-pixel signal, initial third sub-pixel signal, and fourth sub-pixel signal as converted pixel signals; the converted pixel signal is used Corresponding to driving the R sub-pixel, G sub-pixel, B sub-pixel and W sub-pixel in the specific pixel unit.
  • the process of obtaining the fourth sub-pixel signal according to the minimum value in the stimulus value signal set includes the steps of:
  • the fourth stimulation value signal is a WX stimulation value signal, a WY stimulation value signal or a WZ stimulation value signal
  • the fourth stimulus value signal is the WY stimulus value signal.
  • the first stimulation value signal is an RX stimulation value signal, a RY stimulation value signal, or an RZ stimulation value signal;
  • the second stimulation value signal is a GX stimulation value signal, a GY stimulation value signal or a GZ stimulation value signal;
  • the third stimulation value signal is a BX stimulation value signal, a BY stimulation value signal, or a BZ stimulation value signal.
  • the stimulus value signal set includes the RY stimulus value signal, the GY stimulus value signal, and the BY stimulus value signal.
  • the set of stimulation value signals includes the RX stimulation value signal, the GY stimulation value signal, and the BZ stimulation value signal.
  • the process of obtaining each first stimulus value signal of the initial first sub-pixel signal according to the initial first sub-pixel signal is as follows:
  • RX is the RX stimulation value signal
  • RY is the RY stimulation value signal
  • RZ is the RZ stimulation value signal
  • R is the initial first sub-pixel signal
  • GX is the GX stimulation value signal
  • GY is the The GY stimulation value signal
  • GZ is the GZ stimulation value signal
  • G is the initial second sub-pixel signal
  • BX is the BX stimulation value signal
  • BY is the BY stimulation value signal
  • BZ is the BZ stimulation Value signal
  • B is the initial third sub-pixel signal
  • T is the maximum pixel signal
  • ⁇ RX, ⁇ RY, and ⁇ RZ are power functions of the stimulus value of the initial first subpixel signal; ⁇ GX, ⁇ GY, and ⁇ GZ are power functions of the stimulus value of the initial second subpixel signal; ⁇ BX, ⁇ BY, and ⁇ BZ are the initial third Power function of the stimulus value of the sub-pixel signal.
  • a computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the steps when the computer program is executed:
  • the pixel signal includes an initial first sub-pixel signal, an initial second sub-pixel signal, and an initial third sub-pixel signal; the pixel signal is used to drive R sub-pixels and G sub-pixels in a specific pixel unit Pixels and B sub-pixels;
  • a fourth sub-pixel signal is obtained according to the minimum value in the set of stimulation values;
  • the set of stimulation values includes one of the first stimulation value signal, one of the second stimulation value signal, and one of the third stimulation value signal ;
  • the initial first sub-pixel signal, initial second sub-pixel signal, initial third sub-pixel signal, and fourth sub-pixel signal are used as converted pixel signals; the converted pixel signals are used to drive the specific The R sub-pixel, G sub-pixel, B sub-pixel, and W sub-pixel in the pixel unit.
  • the process of obtaining the fourth sub-pixel signal according to the minimum value in the stimulus value signal set includes the steps of:
  • the fourth stimulation value signal is a WX stimulation value signal, a WY stimulation value signal or a WZ stimulation value signal
  • the fourth stimulus value signal is the WY stimulus value signal.
  • the first stimulation value signal is an RX stimulation value signal, a RY stimulation value signal, or an RZ stimulation value signal;
  • the second stimulation value signal is a GX stimulation value signal, a GY stimulation value signal or a GZ stimulation value signal;
  • the third stimulation value signal is a BX stimulation value signal, a BY stimulation value signal, or a BZ stimulation value signal.
  • the stimulus value signal set includes the RY stimulus value signal, the GY stimulus value signal, and the BY stimulus value signal.
  • FIG. 1 is a schematic flowchart of a pixel signal conversion method according to one or more embodiments
  • Figure 2 is a schematic diagram of a four-color display array
  • FIG. 3 is a schematic diagram of a set curve of a stimulus value signal according to one or more embodiments
  • FIG. 4 is a schematic diagram of another stimulus value signal collection curve according to one or more embodiments.
  • FIG. 5 is a flowchart of another pixel signal conversion method according to one or more embodiments.
  • FIG. 6 is a block diagram of a pixel signal conversion device module.
  • This application provides a pixel signal conversion method:
  • FIG. 1 is a schematic flowchart of a pixel signal conversion method according to an embodiment. As shown in FIG. 1, the pixel signal conversion method includes steps S100 to S103:
  • the pixel signal includes an initial first sub-pixel signal, an initial second sub-pixel signal, and an initial third sub-pixel signal; in one of the embodiments, the pixel signal is used to correspondingly drive R in a specific pixel unit Sub-pixel, G sub-pixel and B sub-pixel;
  • the first subpixel signal may be an R subpixel signal
  • the second subpixel signal may be a G subpixel signal
  • the third subpixel signal may be a B subpixel signal
  • the fourth subpixel may be W Subpixel signal.
  • FIG. 2 is a schematic diagram of a four-color display array.
  • the four-color display array includes a plurality of four-color pixel units 200 arranged in rows and columns, and each four-color pixel unit 200 includes four sub-pixels. , Namely R sub-pixel, G sub-pixel, B sub-pixel and W (White) sub-pixel.
  • a conventional three-color display array a plurality of three-color pixel units are arranged in rows and columns, and each three-color pixel unit includes only three sub-pixels, that is, an R sub-pixel, a G sub-pixel, and a B sub-pixel.
  • the specific pixel unit may be any pixel unit in the four-color display array shown in FIG. 2.
  • the pixel signal before conversion acquired in step S100 is used to correspondingly drive the R sub-pixel, G sub-pixel, and B sub-pixel in a specific pixel unit, and is used to change the brightness of the correspondingly driven sub-pixel.
  • the initial first subpixel signal drives the R subpixel
  • the initial second subpixel signal drives the G subpixel
  • the initial third subpixel signal drives the B subpixel.
  • S101 Obtain the first stimulation value signals of the initial first subpixel signal according to the initial first subpixel signal, and obtain the second stimulation value signals of the initial second subpixel signal according to the initial second subpixel signal, and according to the initial The third sub-pixel signal obtains each third stimulus value signal of the initial third sub-pixel signal;
  • the pixel signal includes three sub-pixel signals, namely an initial first sub-pixel signal, an initial second sub-pixel signal, and an initial third sub-pixel signal.
  • each sub-pixel signal corresponds to a stimulus value signal according to the optical brightness.
  • one sub-pixel signal can correspond to multiple stimulus value signals.
  • the first type of stimulus value signal corresponding to the initial first sub-pixel signal is the first stimulus value signal
  • the first type of stimulus value signal corresponding to the initial second sub-pixel signal is the second stimulus value signal
  • the initial third sub-pixel signal corresponds to The first type of stimulus value signal is the third stimulus value signal.
  • the first stimulation value signal is an RX stimulation value signal, a RY stimulation value signal, or an RZ stimulation value signal;
  • the second stimulation value signal is a GX stimulation value signal, a GY stimulation value signal or a GZ stimulation value signal;
  • the third stimulation value signal is a BX stimulation value signal, a BY stimulation value signal, or a BZ stimulation value signal.
  • each first stimulus value signal of the initial first sub-pixel signal according to the initial first sub-pixel signal is as follows:
  • RX is the RX stimulation value signal
  • RY is the RY stimulation value signal
  • RZ is the RZ stimulation value signal
  • R is the initial first sub-pixel signal
  • GX is the GX stimulation value signal
  • GY is the GY stimulation value signal
  • GZ is the GZ stimulation value signal
  • G is the initial second subpixel signal
  • BX is the BX stimulation value signal
  • BY is the BY stimulation value signal
  • BZ is the BZ stimulation value signal
  • B is the initial third subpixel signal
  • T is the pixel Signal maximum
  • the set of stimulus values includes a first stimulus value signal, a second stimulus value signal, and a third stimulus value signal;
  • the stimulus value signal set includes a RY stimulus value signal, a GY stimulus value signal, and a BY stimulus value signal.
  • the stimulus value signal set includes an RX stimulus value signal, a GY stimulus value signal, and a BZ stimulus value signal.
  • U2 (RX, GY, BZ).
  • 4 is a schematic diagram of a set curve of a stimulus value signal according to another embodiment. As shown in FIG. 4, the horizontal axis direction is a sub-pixel signal, and the vertical axis direction is a stimulus value signal. The change of the stimulus value signal in the stimulus value signal set with the sub-pixel signal is characterized as shown in FIG. 4.
  • the stimulus value signal set U2 is compared with the stimulus value signal set U1, and the proportional weights of the stimulus value signals in the stimulus value signal set U2 are closer, so that the subsequent converted sub The pixel signal can be closer to the actual performance of the original R, G, B mixed color.
  • the minimum value Min2 min (RX, GY, BZ) in the stimulus value signal set.
  • FIG. 5 is a flowchart of a pixel signal conversion method according to another embodiment. As shown in FIG. 5, the process of obtaining the fourth sub-pixel signal according to the minimum value in the stimulus value signal set in step S102 includes step S200:
  • the fourth sub-pixel signal also includes a WX stimulation value signal, a WY stimulation value signal or a WZ stimulation value signal.
  • the relationship between the fourth sub-pixel signal and the corresponding stimulus value signals is as follows:
  • WX is a WX stimulation value signal
  • WY is a WY stimulation value signal
  • WZ is a WZ stimulation value signal
  • W is a fourth sub-pixel signal
  • T is a maximum pixel signal value.
  • ⁇ WX, ⁇ WY and ⁇ WZ are all the power function of the stimulus value of the fourth sub-pixel signal.
  • the method of obtaining the fourth sub-pixel signal is as follows:
  • WX is a WX stimulation value signal
  • WY is a WY stimulation value signal
  • WZ is a WZ stimulation value signal
  • W is a fourth sub-pixel signal
  • T is a maximum pixel signal value.
  • ⁇ WX, ⁇ WY and ⁇ WZ are all the power function of the stimulus value of the fourth sub-pixel signal.
  • any fourth stimulation value signal is a WY stimulation value signal.
  • the initial first sub-pixel signal, the initial second sub-pixel signal, the initial third sub-pixel signal, and the fourth sub-pixel signal as converted pixel signals; in one embodiment, the converted pixel signal is used for R sub-pixels, G sub-pixels, B sub-pixels and W sub-pixels in a specific pixel unit are driven correspondingly.
  • the converted pixel signal includes a first sub-pixel signal, an initial second sub-pixel signal, an initial third sub-pixel signal, and a fourth sub-pixel signal.
  • the initial first subpixel signal drives the R subpixel
  • the initial second subpixel signal drives the G subpixel
  • the initial third subpixel signal drives the B subpixel
  • the fourth subpixel signal drives the W subpixel Pixels.
  • the above pixel signal conversion method obtains the corresponding first stimulation value signal, second stimulation value signal and third stimulation value according to the initial first sub-pixel signal, initial second sub-pixel signal and initial third sub-pixel signal in the pixel signal signal. Further, the fourth sub-pixel signal is obtained by the minimum value in the stimulus value signal set composed of the first stimulus value signal, the second stimulus value signal and the third stimulus value signal, and finally the initial first sub-pixel signal and the initial The second sub-pixel signal, the initial third sub-pixel signal, and the fourth sub-pixel signal are used as converted pixel signals.
  • the display effect is closer to the actual performance of the original mixed color of R, G, and B, reducing the large Depending on the character's partial defects, improve the display effect.
  • This application provides a pixel signal conversion device:
  • FIG. 6 is a block diagram of a pixel signal conversion device. As shown in FIG. 6, the pixel signal conversion device includes modules 100 to 103:
  • the pixel signal acquisition module 100 is used to acquire pixel signals; the pixel signals include an initial first sub-pixel signal, an initial second sub-pixel signal, and an initial third sub-pixel signal; in one embodiment, the pixel signal is used to drive a corresponding R sub-pixel, G sub-pixel and B sub-pixel in a specific pixel unit;
  • the signal processing module 101 is configured to obtain each first stimulation value signal of the initial first subpixel signal according to the initial first subpixel signal, and obtain each second stimulation value of the initial second subpixel signal according to the initial second subpixel signal A signal, and each third stimulus value signal of the initial third sub-pixel signal is obtained according to the initial third sub-pixel signal;
  • the W sub-pixel obtaining module 102 is configured to obtain a fourth sub-pixel signal according to the minimum value in the stimulus value signal set; in one embodiment, the stimulus value signal set includes a first stimulus value signal and a second stimulus value Signal and a third stimulus value signal;
  • the W sub-pixel obtaining module 102 is configured to assign any fourth stimulus value signal to a minimum value according to the relationship between the fourth sub-pixel signal and any fourth stimulus value signal of the fourth sub-pixel signal To obtain the fourth sub-pixel signal.
  • the signal conversion module 103 is configured to use the initial first sub-pixel signal, the initial second sub-pixel signal, the initial third sub-pixel signal, and the fourth sub-pixel signal as converted pixel signals; in one embodiment, after the conversion
  • the pixel signal of is used to drive the R sub-pixel, G sub-pixel, B sub-pixel and W sub-pixel in a specific pixel unit.
  • the above pixel signal conversion device obtains the corresponding first stimulation value signal, second stimulation value signal and third stimulation value according to the initial first sub-pixel signal, initial second sub-pixel signal and initial third sub-pixel signal in the pixel signal signal. Further, the fourth sub-pixel signal is obtained by the minimum value in the stimulus value signal set composed of the first stimulus value signal, the second stimulus value signal and the third stimulus value signal, and finally the initial first sub-pixel signal and the initial The second sub-pixel signal, the initial third sub-pixel signal, and the fourth sub-pixel signal are used as converted pixel signals.
  • the display effect is closer to the actual performance of the original mixed color of R, G, and B, reducing the large Depending on the character's partial defects, improve the display effect.
  • a computer device which includes a memory and a processor.
  • a computer program is stored in the memory, and the processor implements the following steps when the processor executes the computer program:
  • pixel signals include initial first subpixel signals, initial second subpixel signals, and initial third subpixel signals; in one embodiment, the pixel signals are used to drive R subpixels in a particular pixel unit , G sub-pixel and B sub-pixel;
  • the sub-pixel signal obtains each third stimulus value signal of the initial third sub-pixel signal
  • the stimulation value signal set includes a first stimulation value signal, a second stimulation value signal, and a third stimulation value signal;
  • the initial first sub-pixel signal, initial second sub-pixel signal, initial third sub-pixel signal and fourth sub-pixel signal are used as converted pixel signals; in one embodiment, the converted pixel signal is used for corresponding driving R sub-pixel, G sub-pixel, B sub-pixel, and W sub-pixel in a specific pixel unit.
  • the above computer device obtains the corresponding first stimulation value signal, second stimulation value signal and third stimulation value signal according to the initial first sub-pixel signal, the initial second sub-pixel signal and the initial third sub-pixel signal in the pixel signal. Further, the fourth sub-pixel signal is obtained by the minimum value in the stimulus value signal set composed of the first stimulus value signal, the second stimulus value signal and the third stimulus value signal, and finally the initial first sub-pixel signal and the initial The second sub-pixel signal, the initial third sub-pixel signal, and the fourth sub-pixel signal are used as converted pixel signals.
  • the display effect is closer to the actual performance of the original mixed color of R, G, and B, reducing the large Depending on the character's partial defects, improve the display effect.
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the following steps are realized:
  • pixel signals include initial first subpixel signals, initial second subpixel signals, and initial third subpixel signals; in one embodiment, the pixel signals are used to drive R subpixels in a particular pixel unit , G sub-pixel and B sub-pixel;
  • the sub-pixel signal obtains each third stimulus value signal of the initial third sub-pixel signal
  • the stimulation value signal set includes a first stimulation value signal, a second stimulation value signal, and a third stimulation value signal;
  • the initial first sub-pixel signal, initial second sub-pixel signal, initial third sub-pixel signal and fourth sub-pixel signal are used as converted pixel signals; in one embodiment, the converted pixel signal is used for corresponding driving R sub-pixel, G sub-pixel, B sub-pixel, and W sub-pixel in a specific pixel unit.
  • the above computer-readable storage medium obtains the corresponding first stimulation value signal, second stimulation value signal and third stimulation according to the initial first sub-pixel signal, initial second sub-pixel signal and initial third sub-pixel signal in the pixel signal Value signal. Further, the fourth sub-pixel signal is obtained by the minimum value in the stimulus value signal set composed of the first stimulus value signal, the second stimulus value signal and the third stimulus value signal, and finally the initial first sub-pixel signal and the initial The second sub-pixel signal, the initial third sub-pixel signal, and the fourth sub-pixel signal are used as converted pixel signals.
  • the display effect is closer to the actual performance of the original mixed color of R, G, and B, reducing the large Depending on the character's partial defects, improve the display effect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

一种像素信号转换方法及装置包括：根据像素信号中初始第一子像素信号、初始第二子像素信号和初始第三子像素信号，获得对应的第一剌激值信号、第二剌激值信号和第三剌激值信号，使转换后的像素信号应用在W、R、G、B四色子像素构成的混色色彩显示器上应用时，显示效果更接近原R、G、B混色色彩的实际表现，减小大视角色偏缺陷。

Description

像素信号转换方法及装置
本申请要求于2018年11月7日提交中国专利局，申请号为2018113201702，申请名称为“像素信号转换方法及装置”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
本申请涉及一种像素信号转换方法及装置。
背景技术
在传统的液晶显示器中，一般由R(Red红)、G(Green绿)、B(Blue蓝)三个子像素产生的三色光源混色产生需要的显示色彩。R、G、B三色光源是由R、G、B三个子像素吸收光阻材料对于非R、G、B子像素单元的光波段进行吸收，使得R、G、B三个子像素产生对应的R、G、B三色光源。
随着液晶显示器解析度的提高，子像素的增加叠加子像素对应像素开口率的下降，造成高解析度显示器穿透率损失，导致光效率的下降。因此，为平衡液晶显示器的高解析度、穿透率、光效率和背光架构成本，出现了以W、R、G、B四色子像素构成的混色色彩显示器。其中的W子像素中无吸收可见光能量的光阻吸收材料，可提高显示器的穿透率和光效率。
然而，W子像素由于穿透率大，大视角漏光造成色偏，会对大视角观赏影像画质造成影响，同时由于部分类型液晶显示器的正视角与大视角的可见光全波长穿透率特性不同，使得这部分液晶显示器在大视角观赏的光学特性无法维持与正视角观赏相同的正确颜色呈现。
因此发明人意识到，在W、R、G、B四色子像素构成的混色色彩显示器上使用R、G、B三色子像素信号进行驱动时，存在大视角色偏缺陷。
发明内容
根据本申请公开的各种实施例，提供一种像素信号转换方法及装置。
一种像素信号转换方法，包括步骤：
获取像素信号；所述像素信号包括初始第一子像素信号、初始第二子像素信号和初始第三子像素信号；所述像素信号用于对应驱动一特定像素单元中的R子像素、G子像素和B子像素；
根据所述初始第一子像素信号获得所述初始第一子像素信号的各第一刺激值信号，并根据所述初始第二子像素信号获得所述初始第二子像素信号的各第二刺激值信号，且根据所述初始第三子像素信号获得所述初始第三子像素信号的各第三刺激值信号；
根据刺激值信号集合中的最小值，获得第四子像素信号；所述刺激值信号集合包括一个所述第一刺激值信号、一个所述第二刺激值信号和一个所述第三刺激值信号；
将所述初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号；所述转换后的像素信号用于对应驱动所述特定像素单元中的R子像素、G子像素、B子像素和W子像素。
在其中一个实施例中，所述根据刺激值信号集合中的最小值，获得第四子像素信号的过程，包括步骤：
根据所述第四子像素信号与所述第四子像素信号的任一第四刺激值信号的关系，将所述任一第四刺激值信号赋值为所述最小值，以获得所述第四子像素信号。
在其中一个实施例中，所述第四刺激值信号为WX刺激值信号、WY刺激值信号或WZ刺激值信号；
所述任一第四刺激值信号为所述WY刺激值信号。
在其中一个实施例中，所述第一刺激值信号为RX刺激值信号、RY刺激值信号或RZ刺激值信号；
所述第二刺激值信号为GX刺激值信号、GY刺激值信号或GZ刺激值信号；
所述第三刺激值信号为BX刺激值信号、BY刺激值信号或BZ刺激值信号。
在其中一个实施例中，所述刺激值信号集合包括所述RY刺激值信号、所述GY刺激值信号和所述BY刺激值信号。
在其中一个实施例中，所述刺激值信号集合包括所述RX刺激值信号、所述GY刺激值信号和所述BZ刺激值信号。
在其中一个实施例中，所述根据所述初始第一子像素信号获得所述初始第一子像素信 号的各第一刺激值信号的过程，如下式：
Figure PCTCN2018116231-appb-000001
所述根据所述初始第二子像素信号获得所述初始第二子像素信号的各第二刺激值信号的过程，如下式：
Figure PCTCN2018116231-appb-000002
所述根据所述初始第三子像素信号获得所述初始第三子像素信号的各第三刺激值信号的过程，如下式：
Figure PCTCN2018116231-appb-000003
RX为所述RX刺激值信号，RY为所述RY刺激值信号，RZ为所述RZ刺激值信号，R为所述初始第一子像素信号；GX为所述GX刺激值信号，GY为所述GY刺激值信号，GZ为所述GZ刺激值信号，G为所述初始第二子像素信号；BX为所述BX刺激值信号，BY为所述BY刺激值信号，BZ为所述BZ刺激值信号，B为所述初始第三子像素信号；T为像素信号最大值；
γRX、γRY和γRZ均为初始第一子像素信号的刺激值幂次函数；γGX、γGY和γGZ均为初始第二子像素信号的刺激值幂次函数；γBX、γBY和γBZ均为初始第三子像素信号的刺激值幂次函数。
一种像素信号转换装置，包括：
像素信号获取模块，用于获取像素信号；所述像素信号包括初始第一子像素信号、初始第二子像素信号和初始第三子像素信号；所述像素信号用于对应驱动一特定像素单元中的R子像素、G子像素和B子像素；
信号处理模块，用于根据所述初始第一子像素信号获得所述初始第一子像素信号的各第一刺激值信号，并根据所述初始第二子像素信号获得所述初始第二子像素信号的各第二刺激值信号，且根据所述初始第三子像素信号获得所述初始第三子像素信号的各第三刺激 值信号；
W子像素获得模块，用于根据刺激值信号集合中的最小值，获得第四子像素信号；所述刺激值信号集合包括一个所述第一刺激值信号、一个所述第二刺激值信号和一个所述第三刺激值信号；
信号转换模块，用于将所述初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号；所述转换后的像素信号用于对应驱动所述特定像素单元中的R子像素、G子像素、B子像素和W子像素。
在其中一个实施例中，所述根据刺激值信号集合中的最小值，获得第四子像素信号的过程，包括步骤：
根据所述第四子像素信号与所述第四子像素信号的任一第四刺激值信号的关系，将所述任一第四刺激值信号赋值为所述最小值，以获得所述第四子像素信号。
在其中一个实施例中，所述第四刺激值信号为WX刺激值信号、WY刺激值信号或WZ刺激值信号；
所述任一第四刺激值信号为所述WY刺激值信号。
在其中一个实施例中，所述第一刺激值信号为RX刺激值信号、RY刺激值信号或RZ刺激值信号；
所述第二刺激值信号为GX刺激值信号、GY刺激值信号或GZ刺激值信号；
所述第三刺激值信号为BX刺激值信号、BY刺激值信号或BZ刺激值信号。
在其中一个实施例中，所述刺激值信号集合包括所述RY刺激值信号、所述GY刺激值信号和所述BY刺激值信号。
在其中一个实施例中，所述刺激值信号集合包括所述RX刺激值信号、所述GY刺激值信号和所述BZ刺激值信号。
在其中一个实施例中，所述根据所述初始第一子像素信号获得所述初始第一子像素信号的各第一刺激值信号的过程，如下式：
Figure PCTCN2018116231-appb-000004
所述根据所述初始第二子像素信号获得所述初始第二子像素信号的各第二刺激值信号的过程，如下式：
Figure PCTCN2018116231-appb-000005
所述根据所述初始第三子像素信号获得所述初始第三子像素信号的各第三刺激值信号的过程，如下式：
Figure PCTCN2018116231-appb-000006
RX为所述RX刺激值信号，RY为所述RY刺激值信号，RZ为所述RZ刺激值信号，R为所述初始第一子像素信号；GX为所述GX刺激值信号，GY为所述GY刺激值信号，GZ为所述GZ刺激值信号，G为所述初始第二子像素信号；BX为所述BX刺激值信号，BY为所述BY刺激值信号，BZ为所述BZ刺激值信号，B为所述初始第三子像素信号；T为像素信号最大值；
γRX、γRY和γRZ均为初始第一子像素信号的刺激值幂次函数；γGX、γGY和γGZ均为初始第二子像素信号的刺激值幂次函数；γBX、γBY和γBZ均为初始第三子像素信号的刺激值幂次函数。
一种计算机设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器执行所述计算机程序时实现步骤：
获取像素信号；所述像素信号包括初始第一子像素信号、初始第二子像素信号和初始第三子像素信号；所述像素信号用于对应驱动一特定像素单元中的R子像素、G子像素和B子像素；
根据所述初始第一子像素信号获得所述初始第一子像素信号的各第一刺激值信号，并根据所述初始第二子像素信号获得所述初始第二子像素信号的各第二刺激值信号，且根据所述初始第三子像素信号获得所述初始第三子像素信号的各第三刺激值信号；
根据刺激值信号集合中的最小值，获得第四子像素信号；所述刺激值信号集合包括一个所述第一刺激值信号、一个所述第二刺激值信号和一个所述第三刺激值信号；
将所述初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号；所述转换后的像素信号用于对应驱动所述特定像素单元中的R子像素、G子像素、B子像素和W子像素。
在其中一个实施例中，所述根据刺激值信号集合中的最小值，获得第四子像素信号的过程，包括步骤：
根据所述第四子像素信号与所述第四子像素信号的任一第四刺激值信号的关系，将所述任一第四刺激值信号赋值为所述最小值，以获得所述第四子像素信号。
在其中一个实施例中，所述第四刺激值信号为WX刺激值信号、WY刺激值信号或WZ刺激值信号；
所述任一第四刺激值信号为所述WY刺激值信号。
在其中一个实施例中，所述第一刺激值信号为RX刺激值信号、RY刺激值信号或RZ刺激值信号；
所述第二刺激值信号为GX刺激值信号、GY刺激值信号或GZ刺激值信号；
所述第三刺激值信号为BX刺激值信号、BY刺激值信号或BZ刺激值信号。
在其中一个实施例中，所述刺激值信号集合包括所述RY刺激值信号、所述GY刺激值信号和所述BY刺激值信号。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例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申请的一些实施例，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获得其它的附图。
图1为根据一个或多个实施例中像素信号转换方法流程示意图；
图2为四色显示阵列示意图；
图3为根据一个或多个实施例中刺激值信号集合曲线示意图；
图4为根据一个或多个实施例中另一刺激值信号集合曲线示意图；
图5为根据一个或多个实施例中另一像素信号转换方法流程图；
图6为像素信号转换装置模块结构图。
具体实施方式
为了使本申请的技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
本申请提供了一种像素信号转换方法：
图1为一实施方式的像素信号转换方法流程示意图，如图1所示，像素信号转换方法包括步骤S100至S103：
S100，获取像素信号；像素信号包括初始第一子像素信号、初始第二子像素信号和初始第三子像素信号；在其中一个实施例中，像素信号用于对应驱动一特定像素单元中的R子像素、G子像素和B子像素；
在其中一个实施例中，第一子像素信号可为R子像素信号，第二子像素信号可为G子像素信号，第三子像素信号可为B子像素信号，第四子像素可为W子像素信号。
在其中一个实施例中，图2为四色显示阵列示意图，如图2所示，四色显示阵列包括呈行列排列的多个四色像素单元200，各四色像素单元200均包括四个子像素，即R子像素、G子像素、B子像素和W(White白)子像素。而在传统的三色显示阵列由行列排列的多个三色像素单元，各三色像素单元只包括三个子像素，即R子像素、G子像素和B子像素。在其中一个实施例中，特定像素单元可为图2所示的四色显示阵列中任意一个像素单元。在步骤S100中获取的转换前的像素信号用于对应驱动一特定像素单元中的R子像素、G子像素和B子像素，用于改变对应驱动的子像素的亮暗度。具体地，初始第一子像素信号驱动R子像素，初始第二子像素信号驱动G子像素，初始第三子像素信号驱动B子像素。
S101，根据初始第一子像素信号获得初始第一子像素信号的各第一刺激值信号，并根据初始第二子像素信号获得初始第二子像素信号的各第二刺激值信号，且根据初始第三子像素信号获得初始第三子像素信号的各第三刺激值信号；
像素信号包括三个子像素信号，即初始第一子像素信号、初始第二子像素信号和初始第三子像素信号。在其中一个实施例中，各子像素信号根据光学亮度，分别对应有刺激值信号。需要注意的是，一个子像素信号可对应多个刺激值信号。具体地，初始第一子像素信号对应的一类刺激值信号为第一刺激值信号，初始第二子像素信号对应的一类刺激值信号为第二刺激值信号，初始第三子像素信号对应的一类刺激值信号为第三刺激值信号。
在其中一个实施例中，第一刺激值信号为RX刺激值信号、RY刺激值信号或RZ刺激值信号；
第二刺激值信号为GX刺激值信号、GY刺激值信号或GZ刺激值信号；
第三刺激值信号为BX刺激值信号、BY刺激值信号或BZ刺激值信号。
对应地，根据初始第一子像素信号获得初始第一子像素信号的各第一刺激值信号的过程，如下式：
Figure PCTCN2018116231-appb-000007
根据初始第二子像素信号获得初始第二子像素信号的各第二刺激值信号的过程，如下式：
Figure PCTCN2018116231-appb-000008
根据初始第三子像素信号获得初始第三子像素信号的各第三刺激值信号的过程，如下式：
Figure PCTCN2018116231-appb-000009
在其中一个实施例中，RX为RX刺激值信号，RY为RY刺激值信号，RZ为RZ刺激值信号，R为初始第一子像素信号；GX为GX刺激值信号，GY为GY刺激值信号，GZ为GZ刺激值信号，G为初始第二子像素信号；BX为BX刺激值信号，BY为BY刺激值信号，BZ为BZ刺激值信号，B为初始第三子像素信号；T为像素信号最大值；
在其中一个实施例中，像素信号最大值取决于显示图像类型，以显示8位灰度图像为 例像素信号最大值为2 8-1＝255。
在其中一个实施例中，γRX、γRY和γRZ均为初始第一子像素信号的刺激值幂次函数；γGX、γGY和γGZ均为初始第二子像素信号的刺激值幂次函数；γBX、γBY和γBZ均为初始第三子像素信号的刺激值幂次函数。
S102，根据刺激值信号集合中的最小值，获得第四子像素信号；在其中一个实施例中，刺激值信号集合包括一个第一刺激值信号、一个第二刺激值信号和一个第三刺激值信号；
在其中一个实施例中，刺激值信号集合包括RY刺激值信号、GY刺激值信号和BY刺激值信号。
设刺激值信号集合为U1，则U1＝(RY，GY，BY)。图3为一实施方式的刺激值信号集合曲线示意图，如图3所示，横轴方向为子像素信号，纵轴方向为刺激值信号。刺激值信号集合中的刺激值信号随子像素信号的变化表征如图3所示。在其中一个实施例中，刺激值信号集合中的最小值Min1＝min(RY，GY，BY)。
在其中一个实施例中，刺激值信号集合包括RX刺激值信号、GY刺激值信号和BZ刺激值信号。
设刺激值信号集合为U2，则U2＝(RX，GY，BZ)。图4为另一实施方式的刺激值信号集合曲线示意图，如图4所示，横轴方向为子像素信号，纵轴方向为刺激值信号。刺激值信号集合中的刺激值信号随子像素信号的变化表征如图4所示。在其中一个实施例中，如图4所示，刺激值信号集合U2对比刺激值信号集合U1，刺激值信号集合U2中的各刺激值信号的比例权重更为接近，以使后续转换后的子像素信号可更接近原R、G、B混色色彩的实际表现。
在其中一个实施例中，刺激值信号集合中的最小值Min2＝min(RX，GY，BZ)。
图5为另一实施方式的像素信号转换方法流程图，如图5所示，步骤S102中根据刺激值信号集合中的最小值，获得第四子像素信号的过程，包括步骤S200：
S200，根据第四子像素信号与第四子像素信号的任一第四刺激值信号的关系，将任一第四刺激值信号赋值为最小值，以获得第四子像素信号。
在其中一个实施例中，对应地，第四子像素信号也包括WX刺激值信号、WY刺激值信号或WZ刺激值信号。在其中一个实施例中，第四子像素信号与其对应的各刺激值信号 的关系如下式：
Figure PCTCN2018116231-appb-000010
在其中一个实施例中，WX为WX刺激值信号，WY为WY刺激值信号，WZ为WZ刺激值信号，W为第四子像素信号；T为像素信号最大值。γWX、γWY和γWZ均为第四子像素信号的刺激值幂次函数。
对应地，在确定第四子像素信号的刺激值信号后，获得第四子像素信号的方式如下式：
Figure PCTCN2018116231-appb-000011
在其中一个实施例中，WX为WX刺激值信号，WY为WY刺激值信号，WZ为WZ刺激值信号，W为第四子像素信号；T为像素信号最大值。γWX、γWY和γWZ均为第四子像素信号的刺激值幂次函数。
在其中一个实施例中，任一第四刺激值信号为WY刺激值信号。
S103，将初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号；在其中一个实施例中，转换后的像素信号用于对应驱动特定像素单元中的R子像素、G子像素、B子像素和W子像素。
在其中一个实施例中，转换后的像素信号包括始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号。对应地，如图2所示，初始第一子像素信号驱动R子像素，初始第二子像素信号驱动G子像素，初始第三子像素信号驱动B子像素，第四子像素信号驱动W子像素。
上述像素信号转换方法，根据像素信号中初始第一子像素信号、初始第二子像素信号和初始第三子像素信号，获得对应的第一刺激值信号、第二刺激值信号和第三刺激值信号。进一步地，通过第一刺激值信号、第二刺激值信号和第三刺激值信号构成的刺激值信号集合中的最小值，获得第四子像素信号，最后将初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号。基于此，使转换后的像素信号应用在W、R、G、B四色子像素构成的混色色彩显示器上应用时，显示效果更接近 原R、G、B混色色彩的实际表现，减小大视角色偏缺陷，提高显示效果。
本申请提供了一种像素信号转换装置：
图6为像素信号转换装置模块结构图，如图6所示，像素信号转换装置包括模块100至103：
像素信号获取模块100，用于获取像素信号；像素信号包括初始第一子像素信号、初始第二子像素信号和初始第三子像素信号；在其中一个实施例中，像素信号用于对应驱动一特定像素单元中的R子像素、G子像素和B子像素；
信号处理模块101，用于根据初始第一子像素信号获得初始第一子像素信号的各第一刺激值信号，并根据初始第二子像素信号获得初始第二子像素信号的各第二刺激值信号，且根据初始第三子像素信号获得初始第三子像素信号的各第三刺激值信号；
W子像素获得模块102，用于根据刺激值信号集合中的最小值，获得第四子像素信号；在其中一个实施例中，刺激值信号集合包括一个第一刺激值信号、一个第二刺激值信号和一个第三刺激值信号；
在其中一个实施例中，W子像素获得模块102用于根据第四子像素信号与第四子像素信号的任一第四刺激值信号的关系，将任一第四刺激值信号赋值为最小值，以获得第四子像素信号。
信号转换模块103，用于将初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号；在其中一个实施例中，转换后的像素信号用于对应驱动特定像素单元中的R子像素、G子像素、B子像素和W子像素。
上述像素信号转换装置，根据像素信号中初始第一子像素信号、初始第二子像素信号和初始第三子像素信号，获得对应的第一刺激值信号、第二刺激值信号和第三刺激值信号。进一步地，通过第一刺激值信号、第二刺激值信号和第三刺激值信号构成的刺激值信号集合中的最小值，获得第四子像素信号，最后将初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号。基于此，使转换后的像素信号应用在W、R、G、B四色子像素构成的混色色彩显示器上应用时，显示效果更接近原R、G、B混色色彩的实际表现，减小大视角色偏缺陷，提高显示效果。
在一个实施例中，提供了一种计算机设备，包括存储器和处理器，存储器中存储有计 算机程序，该处理器执行计算机程序时实现以下步骤：
获取像素信号；像素信号包括初始第一子像素信号、初始第二子像素信号和初始第三子像素信号；在其中一个实施例中，像素信号用于对应驱动一特定像素单元中的R子像素、G子像素和B子像素；
根据初始第一子像素信号获得初始第一子像素信号的各第一刺激值信号，并根据初始第二子像素信号获得初始第二子像素信号的各第二刺激值信号，且根据初始第三子像素信号获得初始第三子像素信号的各第三刺激值信号；
根据刺激值信号集合中的最小值，获得第四子像素信号；在其中一个实施例中，刺激值信号集合包括一个第一刺激值信号、一个第二刺激值信号和一个第三刺激值信号；
将初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号；在其中一个实施例中，转换后的像素信号用于对应驱动特定像素单元中的R子像素、G子像素、B子像素和W子像素。
上述计算机设备，根据像素信号中初始第一子像素信号、初始第二子像素信号和初始第三子像素信号，获得对应的第一刺激值信号、第二刺激值信号和第三刺激值信号。进一步地，通过第一刺激值信号、第二刺激值信号和第三刺激值信号构成的刺激值信号集合中的最小值，获得第四子像素信号，最后将初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号。基于此，使转换后的像素信号应用在W、R、G、B四色子像素构成的混色色彩显示器上应用时，显示效果更接近原R、G、B混色色彩的实际表现，减小大视角色偏缺陷，提高显示效果。
在一个实施例中，提供了一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现以下步骤：
获取像素信号；像素信号包括初始第一子像素信号、初始第二子像素信号和初始第三子像素信号；在其中一个实施例中，像素信号用于对应驱动一特定像素单元中的R子像素、G子像素和B子像素；
根据初始第一子像素信号获得初始第一子像素信号的各第一刺激值信号，并根据初始第二子像素信号获得初始第二子像素信号的各第二刺激值信号，且根据初始第三子像素信号获得初始第三子像素信号的各第三刺激值信号；
根据刺激值信号集合中的最小值，获得第四子像素信号；在其中一个实施例中，刺激值信号集合包括一个第一刺激值信号、一个第二刺激值信号和一个第三刺激值信号；
将初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号；在其中一个实施例中，转换后的像素信号用于对应驱动特定像素单元中的R子像素、G子像素、B子像素和W子像素。
上述计算机可读存储介质，根据像素信号中初始第一子像素信号、初始第二子像素信号和初始第三子像素信号，获得对应的第一刺激值信号、第二刺激值信号和第三刺激值信号。进一步地，通过第一刺激值信号、第二刺激值信号和第三刺激值信号构成的刺激值信号集合中的最小值，获得第四子像素信号，最后将初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号。基于此，使转换后的像素信号应用在W、R、G、B四色子像素构成的混色色彩显示器上应用时，显示效果更接近原R、G、B混色色彩的实际表现，减小大视角色偏缺陷，提高显示效果。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (20)

  1. 一种像素信号转换方法，包括步骤：
    获取像素信号；所述像素信号包括初始第一子像素信号、初始第二子像素信号和初始第三子像素信号；所述像素信号用于对应驱动一特定像素单元中的R子像素、G子像素和B子像素；
    根据所述初始第一子像素信号获得所述初始第一子像素信号的各第一刺激值信号，并根据所述初始第二子像素信号获得所述初始第二子像素信号的各第二刺激值信号，且根据所述初始第三子像素信号获得所述初始第三子像素信号的各第三刺激值信号；
    根据刺激值信号集合中的最小值，获得第四子像素信号；所述刺激值信号集合包括一个所述第一刺激值信号、一个所述第二刺激值信号和一个所述第三刺激值信号；以及，
    将所述初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号；所述转换后的像素信号用于对应驱动所述特定像素单元中的R子像素、G子像素、B子像素和W子像素。
  2. 根据权利要求1所述的像素信号转换方法，其中，所述根据刺激值信号集合中的最小值，获得第四子像素信号的过程，包括步骤：
    根据所述第四子像素信号与所述第四子像素信号的任一第四刺激值信号的关系，将所述任一第四刺激值信号赋值为所述最小值，以获得所述第四子像素信号。
  3. 根据权利要求2所述的像素信号转换方法，其中，所述第四刺激值信号为WX刺激值信号、WY刺激值信号或WZ刺激值信号；
    所述任一第四刺激值信号为所述WY刺激值信号。
  4. 根据权利要求1所述的像素信号转换方法，其中，所述第一刺激值信号为RX刺激值信号、RY刺激值信号或RZ刺激值信号；
    所述第二刺激值信号为GX刺激值信号、GY刺激值信号或GZ刺激值信号；
    所述第三刺激值信号为BX刺激值信号、BY刺激值信号或BZ刺激值信号。
  5. 根据权利要求4所述的像素信号转换方法，其中，所述刺激值信号集合包括所述RY刺激值信号、所述GY刺激值信号和所述BY刺激值信号。
  6. 根据权利要求4所述的像素信号转换方法，其中，所述刺激值信号集合包括所述 RX刺激值信号、所述GY刺激值信号和所述BZ刺激值信号。
  7. 根据权利要求4所述的像素信号转换方法，其中，所述根据所述初始第一子像素信号获得所述初始第一子像素信号的各第一刺激值信号的过程，如下式：
    Figure PCTCN2018116231-appb-100001
    所述根据所述初始第二子像素信号获得所述初始第二子像素信号的各第二刺激值信号的过程，如下式：
    Figure PCTCN2018116231-appb-100002
    所述根据所述初始第三子像素信号获得所述初始第三子像素信号的各第三刺激值信号的过程，如下式：
    Figure PCTCN2018116231-appb-100003
    RX为所述RX刺激值信号，RY为所述RY刺激值信号，RZ为所述RZ刺激值信号，R为所述初始第一子像素信号；GX为所述GX刺激值信号，GY为所述GY刺激值信号，GZ为所述GZ刺激值信号，G为所述初始第二子像素信号；BX为所述BX刺激值信号，BY为所述BY刺激值信号，BZ为所述BZ刺激值信号，B为所述初始第三子像素信号；T为像素信号最大值；
    γRX、γRY和γRZ均为初始第一子像素信号的刺激值幂次函数；γGX、γGY和γGZ均为初始第二子像素信号的刺激值幂次函数；γBX、γBY和γBZ均为初始第三子像素信号的刺激值幂次函数。
  8. 一种像素信号转换装置，包括：
    像素信号获取模块，用于获取像素信号；所述像素信号包括初始第一子像素信号、初始第二子像素信号和初始第三子像素信号；所述像素信号用于对应驱动一特定像素单元中的R子像素、G子像素和B子像素；
    信号处理模块，用于根据所述初始第一子像素信号获得所述初始第一子像素信号的各 第一刺激值信号，并根据所述初始第二子像素信号获得所述初始第二子像素信号的各第二刺激值信号，且根据所述初始第三子像素信号获得所述初始第三子像素信号的各第三刺激值信号；
    W子像素获得模块，用于根据刺激值信号集合中的最小值，获得第四子像素信号；所述刺激值信号集合包括一个所述第一刺激值信号、一个所述第二刺激值信号和一个所述第三刺激值信号；以及，
    信号转换模块，用于将所述初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号；所述转换后的像素信号用于对应驱动所述特定像素单元中的R子像素、G子像素、B子像素和W子像素。
  9. 根据权利要求8所述的像素信号装换装置，其中，所述根据刺激值信号集合中的最小值，获得第四子像素信号的过程，包括步骤：
    根据所述第四子像素信号与所述第四子像素信号的任一第四刺激值信号的关系，将所述任一第四刺激值信号赋值为所述最小值，以获得所述第四子像素信号。
  10. 根据权利要求9所述的像素信号装换装置，其中，所述第四刺激值信号为WX刺激值信号、WY刺激值信号或WZ刺激值信号；
    所述任一第四刺激值信号为所述WY刺激值信号。
  11. 根据权利要求8所述的像素信号装换装置，其中，所述第一刺激值信号为RX刺激值信号、RY刺激值信号或RZ刺激值信号；
    所述第二刺激值信号为GX刺激值信号、GY刺激值信号或GZ刺激值信号；
    所述第三刺激值信号为BX刺激值信号、BY刺激值信号或BZ刺激值信号。
  12. 根据权利要求11所述的像素信号装换装置，其中，所述刺激值信号集合包括所述RY刺激值信号、所述GY刺激值信号和所述BY刺激值信号。
  13. 根据权利要求11所述的像素信号装换装置，其中，所述刺激值信号集合包括所述RX刺激值信号、所述GY刺激值信号和所述BZ刺激值信号。
  14. 根据权利要求11所述的像素信号装换装置，其中，所述根据所述初始第一子像素信号获得所述初始第一子像素信号的各第一刺激值信号的过程，如下式：
    Figure PCTCN2018116231-appb-100004
    所述根据所述初始第二子像素信号获得所述初始第二子像素信号的各第二刺激值信号的过程，如下式：
    Figure PCTCN2018116231-appb-100005
    所述根据所述初始第三子像素信号获得所述初始第三子像素信号的各第三刺激值信号的过程，如下式：
    Figure PCTCN2018116231-appb-100006
    RX为所述RX刺激值信号，RY为所述RY刺激值信号，RZ为所述RZ刺激值信号，R为所述初始第一子像素信号；GX为所述GX刺激值信号，GY为所述GY刺激值信号，GZ为所述GZ刺激值信号，G为所述初始第二子像素信号；BX为所述BX刺激值信号，BY为所述BY刺激值信号，BZ为所述BZ刺激值信号，B为所述初始第三子像素信号；T为像素信号最大值；
    γRX、γRY和γRZ均为初始第一子像素信号的刺激值幂次函数；γGX、γGY和γGZ均为初始第二子像素信号的刺激值幂次函数；γBX、γBY和γBZ均为初始第三子像素信号的刺激值幂次函数。
  15. 一种计算机设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器执行所述计算机程序时实现步骤：
    获取像素信号；所述像素信号包括初始第一子像素信号、初始第二子像素信号和初始第三子像素信号；所述像素信号用于对应驱动一特定像素单元中的R子像素、G子像素和B子像素；
    根据所述初始第一子像素信号获得所述初始第一子像素信号的各第一刺激值信号，并根据所述初始第二子像素信号获得所述初始第二子像素信号的各第二刺激值信号，且根据所述初始第三子像素信号获得所述初始第三子像素信号的各第三刺激值信号；
    根据刺激值信号集合中的最小值，获得第四子像素信号；所述刺激值信号集合包括一个所述第一刺激值信号、一个所述第二刺激值信号和一个所述第三刺激值信号；以及，
    将所述初始第一子像素信号、初始第二子像素信号、初始第三子像素信号和第四子像素信号作为转换后的像素信号；所述转换后的像素信号用于对应驱动所述特定像素单元中的R子像素、G子像素、B子像素和W子像素。
  16. 根据权利要求15所述的计算机设备，其中，所述根据刺激值信号集合中的最小值，获得第四子像素信号的过程，包括步骤：
    根据所述第四子像素信号与所述第四子像素信号的任一第四刺激值信号的关系，将所述任一第四刺激值信号赋值为所述最小值，以获得所述第四子像素信号。
  17. 根据权利要求15所述的计算机设备，其中，所述第四刺激值信号为WX刺激值信号、WY刺激值信号或WZ刺激值信号；
    所述任一第四刺激值信号为所述WY刺激值信号。
  18. 根据权利要求15所述的计算机设备，其中，所述第一刺激值信号为RX刺激值信号、RY刺激值信号或RZ刺激值信号；
    所述第二刺激值信号为GX刺激值信号、GY刺激值信号或GZ刺激值信号；
    所述第三刺激值信号为BX刺激值信号、BY刺激值信号或BZ刺激值信号。
  19. 根据权利要求18所述的计算机设备，其中，所述刺激值信号集合包括所述RY刺激值信号、所述GY刺激值信号和所述BY刺激值信号。
  20. 根据权利要求18所述的像素信号转换方法，其中，所述刺激值信号集合包括所述RX刺激值信号、所述GY刺激值信号和所述BZ刺激值信号。
PCT/CN2018/116231 2018-11-07 2018-11-19 像素信号转换方法及装置 WO2020093443A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/043,305 US11238817B2 (en) 2018-11-07 2018-11-19 Method and apparatus for pixel signal conversion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811320170.2 2018-11-07
CN201811320170.2A CN109215602B (zh) 2018-11-07 2018-11-07 像素信号转换方法及装置

Publications (1)

Publication Number Publication Date
WO2020093443A1 true WO2020093443A1 (zh) 2020-05-14

Family

ID=64995481

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/116231 WO2020093443A1 (zh) 2018-11-07 2018-11-19 像素信号转换方法及装置

Country Status (3)

Country Link
US (1) US11238817B2 (zh)
CN (1) CN109215602B (zh)
WO (1) WO2020093443A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109166558B (zh) * 2018-11-07 2020-07-10 惠科股份有限公司 像素信号转换方法及装置
CN109686339B (zh) * 2019-02-27 2022-02-15 惠科股份有限公司 像素信号转换方法及装置
CN109686337B (zh) * 2019-02-27 2021-07-27 惠科股份有限公司 像素信号转换方法及装置
CN109712589B (zh) * 2019-02-28 2021-07-06 惠科股份有限公司 像素信号转换方法、像素信号转换装置和显示设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101350171A (zh) * 2008-09-12 2009-01-21 友达光电股份有限公司 一种四色显示器显示颜色的方法
CN103714771A (zh) * 2012-10-03 2014-04-09 索尼公司 图像显示单元及其驱动方法、信号生成器、程序和方法
CN104269138A (zh) * 2014-10-24 2015-01-07 京东方科技集团股份有限公司 白光oled显示装置及其显示控制方法、显示控制装置
CN104952423A (zh) * 2015-07-03 2015-09-30 深圳市华星光电技术有限公司 一种图像显示方法以及显示系统
CN107945729A (zh) * 2017-12-15 2018-04-20 京东方科技集团股份有限公司 转换方法及电路、显示装置及驱动方法和电路、存储介质

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5122268B2 (ja) * 2007-08-30 2013-01-16 凸版印刷株式会社 液晶表示装置およびそれに用いるカラーフィルタ
CN101625476A (zh) * 2008-07-11 2010-01-13 奇美电子股份有限公司 液晶显示器、背光模块及其控制装置与方法
CN102394040B (zh) 2011-12-07 2014-01-22 深圳市华星光电技术有限公司 色彩调整装置、色彩调整方法以及显示器
JP5663063B2 (ja) 2012-07-20 2015-02-04 シャープ株式会社 表示装置
WO2014126180A1 (ja) 2013-02-14 2014-08-21 三菱電機株式会社 信号変換装置及び方法、並びにプログラム及び記録媒体
CN103295559B (zh) * 2013-06-07 2015-07-08 广东威创视讯科技股份有限公司 颜色校准的方法及装置
CN104077997B (zh) * 2014-07-17 2016-10-12 深圳市华星光电技术有限公司 Rgb到rgbw的颜色转换系统和方法
US9779654B2 (en) * 2015-07-03 2017-10-03 Shenzhen China Star Optoelectronics Technology Co., Ltd Method for image display and display system
CN105472364B (zh) 2015-12-14 2017-12-22 合一智能科技（深圳）有限公司 液晶显示屏的色彩信号转换方法及装置
KR102608288B1 (ko) 2016-12-02 2023-11-29 엘지디스플레이 주식회사 표시 장치 및 이의 영상 데이터 처리 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101350171A (zh) * 2008-09-12 2009-01-21 友达光电股份有限公司 一种四色显示器显示颜色的方法
CN103714771A (zh) * 2012-10-03 2014-04-09 索尼公司 图像显示单元及其驱动方法、信号生成器、程序和方法
CN104269138A (zh) * 2014-10-24 2015-01-07 京东方科技集团股份有限公司 白光oled显示装置及其显示控制方法、显示控制装置
CN104952423A (zh) * 2015-07-03 2015-09-30 深圳市华星光电技术有限公司 一种图像显示方法以及显示系统
CN107945729A (zh) * 2017-12-15 2018-04-20 京东方科技集团股份有限公司 转换方法及电路、显示装置及驱动方法和电路、存储介质

Also Published As

Publication number Publication date
US11238817B2 (en) 2022-02-01
US20210256922A1 (en) 2021-08-19
CN109215602B (zh) 2020-07-10
CN109215602A (zh) 2019-01-15

Similar Documents

Publication Publication Date Title
WO2020093461A1 (zh) 像素信号转换方法及装置、计算机设备
WO2020093446A1 (zh) 像素信号转换方法及装置
WO2020093443A1 (zh) 像素信号转换方法及装置
RU2660628C1 (ru) Жидкокристаллическая панель и способ управления такой панелью
US9805670B2 (en) Driving method and driving device of liquid crystal panel
JP6609801B2 (ja) 液晶パネルの駆動方法
WO2020103242A1 (zh) 阵列基板和显示面板
US9330622B2 (en) Display and method of generating an image with uniform brightness
CN106125438B (zh) 一种阵列基板、显示装置及其驱动方法
CN107993624B (zh) 显示装置的驱动方法、驱动装置及显示装置
CN109377961B (zh) 三色数据到四色数据的转换方法及装置
RU2011131063A (ru) Жидкокристаллический дисплей
WO2020103244A1 (zh) 像素驱动方法、像素驱动装置和计算机设备
WO2019052042A1 (zh) 显示装置的驱动方法及显示装置
WO2016107492A1 (zh) 显示屏及其驱动方法
WO2019119603A1 (zh) 显示装置的驱动方法、驱动装置及显示装置
KR20170058992A (ko) 액정 패널 및 액정 패널의 픽셀 유닛 설정 방법
US8952999B2 (en) Image processing device, display device, and image processing method
US9891494B2 (en) Pixel unit and driving method thereof, driving module, display panel and display device
WO2019119585A1 (zh) 显示装置的驱动方法及显示装置
CN109686339B (zh) 像素信号转换方法及装置
CN109686337B (zh) 像素信号转换方法及装置
WO2017031792A1 (zh) 一种四色显示器的驱动方法及装置
WO2020062814A1 (zh) 显示装置及显示面板的驱动方法
US9778502B2 (en) Color filter and liquid crystal display comprising the same

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18939174

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 31.08.2021)

122 Ep: pct application non-entry in european phase

Ref document number: 18939174

Country of ref document: EP

Kind code of ref document: A1