WO2014153882A1 - 平板显示器 - Google Patents

平板显示器 Download PDF

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Publication number
WO2014153882A1
WO2014153882A1 PCT/CN2013/078119 CN2013078119W WO2014153882A1 WO 2014153882 A1 WO2014153882 A1 WO 2014153882A1 CN 2013078119 W CN2013078119 W CN 2013078119W WO 2014153882 A1 WO2014153882 A1 WO 2014153882A1
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WIPO (PCT)
Prior art keywords
sub
pixel
pixels
flat panel
panel display
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Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2013/078119
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English (en)
French (fr)
Inventor
郑华
陈政鸿
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US13/985,580 priority Critical patent/US20150220294A1/en
Publication of WO2014153882A1 publication Critical patent/WO2014153882A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
    • G—PHYSICS
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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    • 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
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    • 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
    • G09G3/22—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 using controlled light sources
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    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3258—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
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    • 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
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3659—Control of matrices with row and column drivers using an active matrix the addressing of the pixel involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependant on signal of two data electrodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/66—Transforming electric information into light information
    • H04N5/70—Circuit details for electroluminescent devices
    • 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
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0224—Details of interlacing
    • G09G2310/0227—Details of interlacing related to multiple interlacing, i.e. involving more fields than just one odd field and one even field
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    • G09G2310/0264—Details of driving circuits
    • G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
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    • 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
    • G09G2320/0223—Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
    • 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
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09G2340/16—Determination of a pixel data signal depending on the signal applied in the previous frame

Definitions

  • the present invention relates to a flat panel display, and more particularly to a flat panel display having a special scanning mode.
  • Flat panel display such as liquid crystal display (Liquid Crystal Display, LCD) or organic light emitting diode (Organic light emitting diode) Diode, OLED) displays have become the standard equipment for mainstream electronic devices today due to their thinness and portability.
  • Various electronic devices such as mobile phones, personal digital assistants (PDAs), digital cameras, computer screens or laptop screens, etc., almost all use flat panel displays as their picture output devices.
  • FIG. 1 illustrates a schematic diagram of a conventional liquid crystal display 100 .
  • the liquid crystal display 100 includes a liquid crystal display panel 110, a gate driver 120, and a source driver 130.
  • the liquid crystal display panel 110 includes a plurality of pixels 140, a plurality of scanning lines GL, and a plurality of data lines DL.
  • Each pixel includes three sub-pixels 141 of red, green, and blue.
  • the three sub-pixels 141 of red, green, and blue have two different arrangements, one is vertical and the other is horizontal.
  • FIG. 2 illustrates different arrangement of sub-pixels.
  • the horizontal arrangement means that different sub-pixels are arranged in a horizontal manner.
  • 3D1G arrangement The corresponding data line DL and the number of scan lines GL, such an arrangement is called a 3D1G arrangement;
  • the vertical arrangement means that different sub-pixels are arranged in a vertical manner, and therefore, different sub-pixels will Corresponding to different scan lines GL, but corresponding to the same data line DL, therefore, according to the corresponding data lines and the number of scan lines, such an arrangement is called 3G1D arrangement.
  • FIG. 3 illustrates the driving manner of the existing 3G1D panel.
  • the driving method is "progressive scanning". That is, in the time period T during which a complete frame is displayed, first, the first scanning line G(1) is turned on for scanning, and the data voltage of the data line is written to the first line.
  • the voltage of D(x) is written into R(x, 1); then, the second scanning line G(2) is turned on, at which time the voltage of the data line is Write to the second row of sub-pixels (green sub-pixel G), that is, the voltage of D(x) is written to G(x, 1), and so on, and the aforementioned scanning is repeated until the last 3Nth
  • the scan line G(3N) is turned on, and the voltage of the data line is written to the 3Nth row of sub-pixels (blue sub-pixel B), that is, the voltage of D(x) is written to B(x, N). in.
  • FIG. 4A and FIG. 4B illustrate the difference between the data voltage output by the source driver and the voltage value obtained by actually charging each sub-pixel.
  • the data line of a given panel 110 is inverted with respect to the polarity of each frame relative to the common electrode (Common), and the display color is yellow (its grayscale value is 255, 255, 0).
  • the data voltage output by the source driver 130 is as shown in FIG. 4A, in which the RGB line segments respectively represent data voltages to be written to the red, green, and blue sub-pixels.
  • a flat panel display includes a plurality of scan lines, a plurality of data lines, and a plurality of pixels, each of the plurality of pixels including at least one a first sub-pixel and a second sub-pixel are coupled to different scan lines, the first sub-pixel The pixel and the second sub-pixel are coupled to the same data line; wherein the flat panel display scans all of the first sub-pixels of the plurality of pixels at a first display timing, after scanning all the After the first sub-pixel is described, the flat panel display scans all of the second sub-pixels of the plurality of pixels at a second display timing.
  • each of the plurality of pixels further includes a third sub-pixel, and the third sub-pixel is coupled to the first sub-pixel and the second sub-pixel differently a scan line, the third sub-pixel in each of the pixels is coupled to the same data line, and the first sub-pixel and the second sub-pixel are coupled to the same data line, wherein the flat panel display scans all the After the second sub-pixel is described, the flat panel display scans all of the third sub-pixels of the plurality of pixels at a third display timing.
  • the first sub-pixel, the second sub-pixel and the third sub-pixel respectively correspond to different colors.
  • the first sub-pixel is a red sub-pixel
  • the second sub-pixel is a green sub-pixel
  • the third sub-pixel is a blue sub-pixel
  • the durations of the first display timing, the second display timing, and the third display timing are equal.
  • the durations of the first display timing and the second display timing are equal.
  • the flat panel display is a liquid crystal display or an organic light emitting diode display.
  • a flat panel display has a resolution of M ⁇ N
  • the flat panel display includes: M ⁇ kN sub-pixels, wherein M, N, and k are positive integers; kN scans a line, wherein each scan line controls a column of sub-pixels; and M data lines, wherein each of the data lines controls a row of sub-pixels; wherein the flat panel display scans sequentially by N scan lines in kN scan lines Corresponding to a M ⁇ N sub-pixels of a first color, and then scanning another M ⁇ N sub-pixels corresponding to a second color by using another N scan lines in the kN scan lines, and repeating the above operations to scan other M ⁇ (k-2) N sub-pixels until all M ⁇ kN sub-pixels have been scanned.
  • the flat panel display scans M x N sub-pixels using 1/k display periods.
  • the flat panel display is a liquid crystal display or an organic light emitting diode display.
  • the flat panel display of the present invention uses a skip scan method to scan one sub-pixel at a time, and since the image data usually does not change drastically, for a sub-pixel of a single color, the data thereof The change is also relatively flat, and therefore the data line is less overloaded, thereby solving the prior art color shift problem.
  • FIG. 1 is a schematic view of a conventional liquid crystal display.
  • Figure 2 illustrates the different arrangement of sub-pixels.
  • FIG. 3 illustrates a driving method of the existing 3G1D panel.
  • 4A and 4B illustrate the difference between the data voltage output by the source driver and the voltage value obtained by actual charging of each sub-pixel.
  • FIG. 5 illustrates a driving method of a 3G1D panel according to an embodiment of the present invention.
  • 6A and 6B illustrate the difference between the output voltage of the source driver of the present invention and the voltage value obtained by actually charging each sub-pixel.
  • FIG. 5 illustrates a driving manner of a 3G1D panel according to an embodiment of the present invention. It should be noted here that the present invention does not employ the sequential scanning method of the prior art. Instead, it is the driving method of the skip scan of the present invention.
  • the liquid crystal display of the present invention “jumps scanning” all the red sub-pixels: first the first scanning line G(1) Is turned on, at this time, the data (voltage) of the data line is written into the first row of red sub-pixels R, that is, the voltage of D(x) is written into R(x, 1); then the fourth scanning line G (4) is turned on, at this time, the data of the data line is written into the red sub-pixel R of the fourth row, that is, the voltage of D(x) is written into R(x, 2); and so on...
  • the scanning line G (3N-2) is turned on, and the data of the data line is written to the red sub-pixel R of the 3N-2 line, that is, D(x) The voltage is written to R(x,N). This completes the scanning of all the red sub-pixels R.
  • the liquid crystal display After scanning all the red sub-pixels R, the liquid crystal display then performs a skip scan on all of the green sub-pixels G. That is, in the second 1/3 ⁇ T time period, first, the second scanning line G(2) is turned on, and at this time, the data (voltage) of the data line is written to the second row of green sub-pixel G. The voltage of D(x) is written to G(x, 1); then the fifth scanning line G(5) is turned on, and the data of the data line is written to the green sub-pixel G of the fifth row, that is, The voltage of D(x) is written into G(x, 2); and so on...
  • the 3N-1 (N is the total number of pixels in the vertical direction) scanning line G(3N-1) is turned on, this The data of the time data line is written into the green sub-pixel G of the 3N-1th row, that is, the voltage of D(x) is written into G(x, N). This completes the scanning of all the green sub-pixels G.
  • the liquid crystal display After scanning all the red sub-pixels R and the green sub-pixels G, finally, the liquid crystal display performs a skip scan on all the blue sub-pixels B. That is, in the last 1/3 ⁇ T time period, first, the third scanning line G(3) is turned on, and at this time, the data (voltage) of the data line is written to the third row of blue sub-pixel B. , that is, the voltage of D(x) is written into B(x, 1); then the sixth scanning line G(6) is turned on, and the data of the data line is written to the blue sub-pixel B of the sixth row. , that is, the voltage of D(x) is written into B(x, 2); and so on...
  • the 3N (N is the total number of pixels in the vertical direction) scanning line G (3N) is turned on, at this time, the data The data of the line is written into the blue sub-pixel B of the 3Nth row, that is, the voltage of D(x) is written into B(x, N). This completes a full screen scan.
  • FIG. 6A is a data voltage waveform output by the source driver when the output image of the liquid crystal display panel is randomly mixed, wherein the RGB segments respectively represent the red, green and blue sub-pixels to be written.
  • the data voltage; and FIG. 6B is the voltage waveform after the actual red, green, and blue sub-pixels are charged.
  • FIG. 6B even if the first row and the last row of pixels have a slight charging abnormality due to the existence of the transmission delay, all the pixels can be normally charged, and the color shift phenomenon is not observed for the entire picture. .
  • the implementation of the skip scan of the present invention can be implemented in a timing controller (timing).
  • the timing controller can output a control signal to the gate driver, so that the gate driver turns on the scan line in the aforementioned skip scan mode; and the corresponding data of the scan lines can also be output by the timing controller, for example,
  • the timing controller can also temporarily store the sequentially scanned data into a buffer and reorder it to generate data necessary for the skip scan and output it to the source driver.
  • the present invention is not limited to a liquid crystal display.
  • the foregoing liquid crystal display is only an embodiment; in practical applications, the spirit of the present invention can be applied to an organic light emitting diode (AMOLED) display, such a phase.
  • AMOLED organic light emitting diode
  • Corresponding changes are also within the scope of the invention.
  • the 3G1D display is taken as an example, the present invention is not limited to the 3G1D display. In practical applications, the present invention can be applied to the nG1D display panel. (For example, a 4G1D panel containing four seed pixels of red, green, blue, and white RGBW), such a corresponding change is also within the scope of the present invention.
  • the present invention adopts the method of skip scanning, scanning one sub-pixel at a time, and then scanning another seed pixel. Since the image data usually does not change drastically, the data change of the sub-pixel of a single color is relatively flat, and thus the data line is not "overloaded", thereby solving the prior art. Color shift problem.

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

Abstract

一种平板显示器，包含有多条扫描线、多条数据线以及多个像素。每一像素包含有至少一第一子像素以及一第二子像素，所述第一子像素与所述第二子像素耦接至不同的扫描线，所述第一子像素与所述第二子像素耦接至相同的数据线。所述平板显示器先在第一显示时序，扫描所述多个像素的所有所述第一子像素，在扫描完所有所述第一子像素后，所述平板显示器再于第二显示时序，扫描所述多个像素的所有所述第二子像素。在这种扫描的方式下，由于影像数据通常变化并不激烈，因此，对于单一种颜色的子像素而言，其数据变化亦较平缓，也因此较不会使数据线发生重载的情况，进而解决了现有技术的色偏问题。

Description

平板显示器 技术领域
本发明涉及一种平板显示器，尤指一种具有特别扫描方式的平板显示器。
 背景技术
平板显示器，如液晶显示器(Liquid Crystal Display, LCD)或有机发光二极管(Organic light emitting diode，OLED)显示器，由于其轻薄、易于携带的特性，已经成为现今各种电子设备主流的标准配备。各项电子设备，如移动电话、个人数字助理(PDA)、数字相机、计算机屏幕或笔记本电脑屏幕等等，几乎均采用平板显示器做为其画面输出装置。
请参阅图1，图1绘示了现有液晶显示器100的示意图。液晶显示器100包含液晶显示面板110、栅极驱动器120以及源极驱动器130。液晶显示面板110包含有多个像素140、多条扫描线GL以及多条数据线DL。每个像素均包含红、绿、蓝三个子像素141。
如图1所示，红、绿、蓝三个子像素141有两种不同的排列方式，一种是垂直排列，一种是水平排列。在此请参阅图2，图2绘示了子像素不同的排列方式。如图2所示，所谓水平排列，是指不同的子像素以水平的方式进行排列，因此，不同的子像素会对应不同的数据线DL，但却对应相同的扫描线GL，因此，根据其对应的数据线DL与扫描线GL数量，这样的排列方式称之为3D1G排列方式；另一方面，所谓垂直排列，是指不同的子像素以垂直的方式进行排列，因此，不同的子像素会对应不同的扫描线GL，但却对应相同的资料线DL，因此，根据其对应的数据线与扫描线数量，这样的排列方式称之为3G1D排列方式
请参阅图3，图3绘示了现有3G1D面板的驱动方式。在现有的3G1D面板上，其驱动方式为“逐行扫描”。亦即，在显示一个完整图框(frame)的时间周期T内，首先，第一条扫描线G(1)被导通，以进行扫描，此时数据线的数据电压都写到第一行子像素（红色的子像素R）中，即D(x)的电压写到R(x,1)中；接着，第二条扫描线G(2)被导通，此时数据线的电压都写到第二行子像素（绿色的子像素G）中，即D(x)的电压写到G(x,1)中，……以此类推，反复进行前述的扫描，直到最后第3N条扫描线线G(3N)被导通，此时数据线的电压都写到第3N行子像素（蓝色的子像素B）中，即D(x)的电压写到B(x,N)中。
然而，这种逐行扫描的方式非常容易发生数据线”重载”的情况，造成子像素充电异常，进而产生色偏现象。请参阅图4A和图4B，图4A和图4B绘示源极驱动器输出的数据电压以及各子像素实际充电所得到的电压值的差异。给定面板110的数据线相对于共电极（Common）每个图框反转一次偏压极性，且显示颜色为黄色（其灰阶值为255,255,0）。那么，由源极驱动器130输出的数据电压如图4A所示，其中RGB线段分别代表应写入红、绿、蓝子像素的数据电压。但是，由于传输延迟（RC Delay），以及相邻两扫描线的数据电压变动量大(由0至255或由255至0)，实际写入红、绿、蓝子像素的数据电压波形如图4B所示。如图4B所示，红色子像素充电不足，绿色子像素充电正常，蓝色子像素有稍许误充电的情况，整个画面发生色偏（蓝移）的现象。此外，这种色偏现象，由于前述的传输延迟，越远离源极驱动器的区域，其色偏现象越严重。
因此，业界须发展出一个新的作法，以解决前述的色偏问题。
 技术问题
本发明的目的是提供一种跳行扫描的平板显示器，进而解决现有技术的色偏问题。
 技术解决方案
根据本发明的实施例，本发明揭示一种平板显示器，所述平板显示器包含有多条扫描线、多条数据线和多个像素，所述多个像素的每一像素皆包含有至少一第一子像素以及一第二子像素，所述每一像素中的所述第一子像素与所述第二子像素耦接至不同的扫描线，所述每一像素中的所述第一子像素与所述第二子像素耦接至相同的数据线；其中，所述平板显示器先在一第一显示时序，扫描所述多个像素的所有所述第一子像素，在扫描完所有所述第一子像素后，所述平板显示器再在第二显示时序，扫描所述多个像素的所有所述第二子像素。
根据本发明的实施例，所述多个像素的所述每一像素另包含有一第三子像素，所述第三子像素与所述第一子像素以及所述第二子像素耦接于不同的扫描线，所述每一像素中的所述第三子像素与所述第一子像素以及所述第二子像素耦接于相同的数据线，其中，所述平板显示器在扫描完所有所述第二子像素后，所述平板显示器再于第三显示时序，扫描所述多个像素的所有所述第三子像素。
根据本发明的实施例，所述第一子像素、所述第二子像素以及所述第三子像素分别对应不同的颜色。
根据本发明的实施例，所述第一子像素为红色子像素，所述第二子像素为绿色子像素以及所述第三子像素为蓝色子像素。
根据本发明的实施例，所述第一显示时序、所述第二显示时序以及所述第三显示时序的时长相等。
根据本发明的实施例，所述第一显示时序以及所述第二显示时序的时长相等。
根据本发明的实施例，所述平板显示器为液晶显示器或有机发光二极管显示器。
根据本发明的另一实施例，一种平板显示器，其具有M×N的分辨率，所述平板显示器包含有：M×kN个子像素，其中M、N、k均为正整数；kN条扫描线，其中每一条扫描线控制一列子像素；以及M条数据线，其中每一条数据线控制一行子像素；其中，所述平板显示器藉由kN条扫描线中的N条扫描线，先循序扫描对应一第一颜色的M×N个子像素，接着在藉由kN条扫描线中的另外N条扫描线，循序扫描对应一第二颜色的另M×N个子像素，并重复上述操作来扫描其他M×(k-2) N个子像素，直至扫描完所有M×kN个子像素。
根据本发明的实施例，所述平板显示器使用1/k个显示周期来扫描M×N个子像素。
根据本发明的实施例，所述平板显示器为液晶显示器或有机发光二极管显示器。
 有益效果
相较于现有技术，本发明的平板显示器采用跳行扫描的方式，一次对一种子像素进行扫描，由于影像数据通常变化并不激烈，因此，对于单一种颜色的子像素而言，其数据变化亦较平缓，也因此较不会使数据线发生重载的情况，进而解决了现有技术的色偏问题。
 附图说明
图1绘示了现有液晶显示器的示意图。
图2绘示了子像素不同的排列方式。
图3绘示了现有3G1D面板的驱动方式。
图4A和图4B绘示了源极驱动器输出的数据电压以及各子像素实际充电所得到的电压值的差异。
图5绘示了本发明一实施例的3G1D面板的驱动方式。
图6A和图6B绘示了本发明源极驱动器的输出电压以及各子像素实际充电所得到的电压值的差异。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施之特定实施例。本发明所提到的方向用语，例如”上”、”下”、”前”、”后”、”左”、”右”、”顶”、”底”、”水平”、”垂直”等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
请参阅图5，图5绘示了本发明一实施例的3G1D面板的驱动方式。在此请注意，本发明不采用现有技术的循序扫描方式。取而代之的，是本发明跳行扫描的驱动方式。
首先，在显示一个图框的时间周期T的第一个1/3×T时间周期内，本发明的液晶显示器”跳行扫描”全部红色的子像素：首先第一条扫描线G(1)被导通，此时数据线的数据（电压）都写到第一行红色子像素R中，即D(x)的电压写到R(x,1)中；接着第四条扫描线线G(4)被导通，此时数据线的数据都写到第四行红色子像素R中，即D(x)的电压写到R(x,2)中；以此类推……；最后第3N-2（N为垂直方向总像素数）条扫描线G(3N-2)被导通，此时数据线的数据都写到第3N-2行红色子像素R中，即D(x)的电压写到R(x,N)中。如此便进行完了所有红色子像素R的扫描。
进行完所有红色子像素R的扫描之后，接着，液晶显示器会对所有的绿色子像素G进行跳行扫描。亦即，在第二个1/3×T时间周期内，首先第二条扫描线线G(2)被导通，此时数据线的数据（电压）都写到第二行绿色子像素G中，即D(x)的电压写到G(x,1)；接着第五条扫描线G(5)被导通，此时数据线的数据都写到第五行绿色子像素G中，即D(x)的电压写到G(x,2)中；以此类推……；最后第3N-1（N为垂直方向总像素数）条扫描线G(3N-1)被导通，此时数据线的数据都写到第3N-1行绿色子像素G中，即D(x)的电压写到G(x,N)中。如此便进行完了所有绿色子像素G的扫描。
进行完所有红色子像素R以及绿色子像素G的扫描之后，最后，液晶显示器会对所有的蓝色子像素B进行跳行扫描。亦即，在最后的1/3×T时间周期中，首先第三条扫描线G(3)被导通，此时数据线的数据（电压）都写到第三行蓝色子像素B中，即D(x)的电压写到B(x,1)中；接着第六条扫描线G(6)被导通，此时数据线的数据都写到第六行蓝色子像素B中，即D(x)的电压写到B(x,2)中；以此类推……；最后第3N（N为垂直方向总像素数）条扫描线G(3N)被导通，此时数据线的数据都写到第3N行蓝色子像素B中，即D(x)的电压写到B(x,N)中。如此便完成了一个完整画面的扫描。
这种”跳行扫描”的方式数据线重载，并保证子像素充电正常，从而消除色偏。在此请参阅图6A和图6B，图6A是当液晶显示面板的输出图像任意混色时，由源极驱动器输出的数据电压波形，其中RGB段分别代表应写入红、绿、蓝子像素的数据电压；而图6B则为实际上红、绿、蓝子像素充电后的电压波形。从图6B可知，即使由于传输延迟的存在，使得第一行和最后一行像素有稍许充电异常的情形，但其间所有像素均能正常充电，对于整个画面而言，便不会观察到色偏现象。
揭露至此，本发明跳行扫描的实现方式可以在时序控制器(timing controller)中完成，时序控制器可以输出控制信号至栅极驱动器，以使栅极驱动器以前述的跳行扫描方式开启扫描线；而这些扫描线的相对应数据亦可由时序控制器输出，譬如，时序控制器亦可以将原本循序扫描的数据先暂存至缓存器(buffer)中，并加以重新排序，以产生跳行扫描所须的数据，并将其输出至源极驱动器。
在此请注意，本发明并不以液晶显示器为限，前述的液晶显示器仅为一实施例；在实际应用中，本发明的精神可以应用在有机发光二极管(AMOLED)的显示器中，如此的相对应变化，亦属本发明的范畴。
此外，在此请注意，虽然在前述的实施例中，以3G1D的显示器做为例子，然而，本发明亦未限制在3G1D的显示器中，在实际应用中，本发明可以应用于nG1D的显示面板（例如含红、绿、蓝、白RGBW四种子像素的4G1D面板），如此的相对应变化，亦属本发明的范畴。
在此请注意，虽然在前述的实施例中，同色子像素更新次序以红绿蓝的顺序进行更新，然而，此亦非本发明的限制，在实际应用中，本发明可改采其他的顺序，这样的相对应变化，亦不违背本发明的精神。
相较于现有技术，本发明改采跳行扫描的方式，一次对一种子像素进行扫描，之后再进行另一种子像素的扫描。由于影像数据通常变化并不激烈，因此，对于单一种颜色的子像素而言，其数据变化亦较平缓，也因此较不会使数据线发生”重载”的情况，进而解决了现有技术的色偏问题。
综上所述，虽然本发明已以较佳实施例揭露如上，但该较佳实施例并非用以限制本发明，该领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
 本发明的实施方式
工业实用性
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Claims (10)

  1. 一种平板显示器，包含：
    多条扫描线以及多条数据线；
    多个像素，所述多个像素的每一像素皆包含有至少一第一子像素以及一第二子像素，所述每一像素中的所述第一子像素与所述第二子像素耦接至不同的扫描线，所述每一像素中的所述第一子像素与所述第二子像素耦接至相同的数据线；
    其中，所述平板显示器先在第一显示时序，扫描所述多个像素的所有所述第一子像素，在扫描完所有所述第一子像素后，所述平板显示器再在一第二显示时序，扫描所述多个像素的所有所述第二子像素。
  2. 根据权利要求1所述的平板显示器，其中所述多个像素的所述每一像素另包含有一第三子像素，所述第三子像素与所述第一子像素以及所述第二子像素耦接于不同的扫描线，所述每一像素中的所述第三子像素与所述第一子像素以及所述第二子像素耦接于相同的数据线，其中，所述平板显示器在扫描完所有所述第二子像素后，所述平板显示器再于第三显示时序，扫描所述多个像素的所有所述第三子像素。
  3. 根据权利要求2所述的平板显示器，其中所述第一子像素、所述第二子像素以及所述第三子像素分别对应不同的颜色。
  4. 根据权利要求3所述的平板显示器，其中所述第一子像素为红色子像素，所述第二子像素为绿色子像素以及所述第三子像素为蓝色子像素。
  5. 根据权利要求2所述的平板显示器，其中所述第一显示时序、所述第二显示时序以及所述第三显示时序的时长相等。
  6. 根据权利要求1所述的平板显示器，其中所述第一显示时序以及所述第二显示时序的时长相等。
  7. 根据权利要求1所述的平板显示器，其中所述平板显示器为液晶显示器或有机发光二极管显示器。
  8. 一种平板显示器，具有M×N的分辨率，其包含：
    M×kN个子像素，其中M、N、k均为正整数；
    kN条扫描线，其中每一条扫描线控制一列子像素；以及
    M条数据线，其中每一条数据线控制一行子像素；
    其中，所述平板显示器藉由kN条扫描线中的N条扫描线，先循序扫描对应一第一颜色的M×N个子像素，接着在藉由kN条扫描线中的另外N条扫描线，循序扫描对应一第二颜色的另M×N个子像素，并重复上述操作来扫描其他M×(k-2) N个子像素，直至扫描完所有M×kN个子像素。
  9. 根据权利要求8所述的平板显示器，其中所述平板显示器使用1/k个显示周期来扫描M×N个子像素。
  10. 根据权利要求8所述的平板显示器，其中所述平板显示器为液晶显示器或有机发光二极管显示器。
PCT/CN2013/078119 2013-03-26 2013-06-27 平板显示器 Ceased WO2014153882A1 (zh)

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