WO2020082618A1 - Panneau d'affichage et dispositif d'affichage à cristaux liquides - Google Patents

Panneau d'affichage et dispositif d'affichage à cristaux liquides Download PDF

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Publication number
WO2020082618A1
WO2020082618A1 PCT/CN2019/070928 CN2019070928W WO2020082618A1 WO 2020082618 A1 WO2020082618 A1 WO 2020082618A1 CN 2019070928 W CN2019070928 W CN 2019070928W WO 2020082618 A1 WO2020082618 A1 WO 2020082618A1
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WO
WIPO (PCT)
Prior art keywords
sub
pixels
column
row
pixel
Prior art date
Application number
PCT/CN2019/070928
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English (en)
Chinese (zh)
Inventor
乔红玉
胡雪
黄文杰
吴苗发
Original Assignee
深圳市华星光电技术有限公司
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
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Publication of WO2020082618A1 publication Critical patent/WO2020082618A1/fr

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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
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3614—Control of polarity reversal in general
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
    • 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
    • G09G3/3685—Details of drivers for data electrodes
    • G09G3/3688—Details of drivers for data electrodes suitable for active matrices only

Definitions

  • the present invention relates to the field of display technology, in particular to a display panel and a liquid crystal display device.
  • liquid crystal displays which include a liquid crystal display panel and a backlight module (backlight module) module).
  • the working principle of the LCD panel is on the thin film transistor substrate (Thin Film Transistor Array Substrate, TFT Array Substrate) and the color filter substrate (Color Filter, CF) are filled with liquid crystal molecules, and pixel voltage and common voltage are applied to the two substrates respectively.
  • the electric field formed between the pixel voltage and the common voltage controls the liquid crystal molecules.
  • the direction of rotation to refract the light from the backlight module to produce a picture.
  • Liquid crystal molecules have a characteristic. If the same voltage is applied to the liquid crystal molecules for a long time, the liquid crystal molecules will be polarized. Even if the voltage is canceled, the liquid crystal molecules will no longer be able to rotate due to the change in the electric field due to the destruction of the characteristics.
  • the display panel must be driven by AC.
  • the LCD panel supports multiple inversion modes, such as dot inversion mode, row inversion mode, and column inversion mode.
  • the source driver needs to output a large swing across voltage, which results in a large power consumption.
  • the source driver needs to output a large swing voltage, which results in a large power consumption.
  • a display panel including:
  • a sub-pixel unit array which includes a plurality of sub-pixels distributed in an array
  • a source driver for providing driving signals to the sub-pixels
  • a data line array which includes a plurality of data lines electrically connected to the source driver, for receiving the driving signal of the source driver and transmitting it to the sub-pixels;
  • a scanning line array which includes a plurality of scanning lines, each of which is connected to a row of sub-pixels;
  • Each of the data lines is connected with the same number of sub-pixels as the number of rows of the sub-pixel unit array, and each sub-pixel of each row has a sub-pixel corresponding to a data line;
  • the sub-pixels and the sub-pixels of each column include a first pixel and a second pixel, and the data line array provides the polarity of the first driving signal to the first pixel and the second driving to the second pixel
  • the polarities of the signals are opposite, and all the sub-pixels connected to each of the data lines are either the first pixel or the second pixel.
  • a first combination including two of the first pixels and a second combination including two of the second pixels are alternately arranged.
  • a third combination including two of the first pixels and a fourth combination including two of the second pixels are alternately arranged.
  • one of the data lines connects at least the sub-pixel located in the n-th row and m-column, the sub-pixel located in the n + 1-th row and m-column, the sub-pixel located in the n + 2th row and m + 2 column, and located in the n-th +3 rows of m + 2 columns of subpixels, n + 4 rows of m columns of subpixels, n + 5 rows of m columns of subpixels, n is an odd number greater than or equal to 1, m is greater than or equal to 1 Integer.
  • one of the data lines connects at least the sub-pixel located in the nth row and m column, the sub-pixel located in the n + 1th row and m column, the sub-pixel located in the n + 2th row and m-2 column, and located in the n +3 row m-2 column subpixels, n + 4 row m column subpixels, n + 5 row m column subpixels, n is an odd number greater than or equal to 1, m is an integer greater than 2 .
  • one of the data lines connects at least the sub-pixel located in the n-th row and m-column, the sub-pixel located in the n + 1-th row and m-column, the sub-pixel located in the n + 2th row and m + 2 column, and located in the n-th +3 rows of m + 2 columns of subpixels, n + 4 rows of m + 4 columns of subpixels, n + 5 rows of m + 4 columns of subpixels, n is an odd number greater than or equal to 1, m is Integer greater than or equal to 1.
  • one of the data lines connects at least the sub-pixel located in the nth row and m column, the sub-pixel located in the n + 1th row and m column, the sub-pixel located in the n + 2th row and m-2 column, and located in the n +3 row m-2 column subpixel, n + 4 row m-4 column subpixel, n + 5 row m-4 column subpixel, n is an odd number greater than or equal to 1, m is Integer greater than 4.
  • the first data line connects at least the sub-pixels located in the n-th row and m-column, the sub-pixels located in the n + 1-th row and m-column, the sub-pixels located in the n + 2th row and m + 1-column, and the sub-pixels located in the n + th row 3 rows of m + 1 columns of subpixels, n + 4 rows of m columns of subpixels, n + 5 rows of m columns of subpixels;
  • the second data line adjacent to the first data line is connected at least in turn The sub-pixel in the nth row and m + 1 column, the sub-pixel in the n + 1th row and m + 1 column, the sub-pixel in the n + 2th row and m-column, the sub-pixel in the n + 3th row and m-column, For the sub-pixels in the n + 4th row and m + 1 column, and the sub-pixels in the
  • the first data line connects at least the sub-pixels located in the nth row and m column, the sub-pixels located in the n + 1th row and m + 1 column, the sub-pixels located in the n + 2th row and m + 2 column, and the n + 3 rows and m + 2 columns of sub-pixels, n + 4 rows and m + 1 columns of sub-pixels, and n + 5 rows and m columns of sub-pixels; the second data line adjacent to the first data line Connect at least the sub-pixels located in the nth row m + 1 column, the sub-pixels located in the n + 1 row m-1 column, the sub-pixels located in the n + 2 row m-2 column, and the sub-pixels located in the n + 3 row m-2 -2 columns of subpixels, n + 4 rows and m columns of subpixels, n + 5 rows and m + 1 columns of subpixels, n is an odd number greater than or equal
  • the invention also provides a liquid crystal display device comprising the above-mentioned display panel, the display panel comprising:
  • a sub-pixel unit array which includes a plurality of sub-pixels distributed in an array
  • a source driver for providing driving signals to the sub-pixels
  • a data line array which includes a plurality of data lines electrically connected to the source driver, for receiving the driving signal of the source driver and transmitting it to the sub-pixels;
  • a scanning line array which includes a plurality of scanning lines, each of which is connected to a row of sub-pixels;
  • Each of the data lines is connected with the same number of sub-pixels as the number of rows of the sub-pixel unit array, and each sub-pixel of each row has a sub-pixel corresponding to a data line;
  • the sub-pixels and the sub-pixels of each column include a first pixel and a second pixel, and the data line array provides the polarity of the first driving signal to the first pixel and the second driving to the second pixel
  • the polarities of the signals are opposite, and all the sub-pixels connected to each of the data lines are either the first pixel or the second pixel.
  • all sub-pixels connected on each of the data lines are pixels of the same polarity, and within one row scan period, the sub-pixels on one data line The pixel only needs to perform polarity conversion once, thereby reducing the power consumption of the source driver.
  • FIG. 1 is a schematic diagram of a display panel in Embodiment 1;
  • FIG. 2 is a schematic diagram of a display panel after removing the source driver and the scan line array in the second embodiment
  • FIG. 3 is a schematic diagram of a display panel after removing the source driver and the scanning line array in the third embodiment
  • FIG. 4 is a schematic diagram of a display panel after removing the source driver and the scanning line array in the fourth embodiment
  • FIG. 5 is a schematic diagram of a display panel after removing the source driver and the scanning line array in the fifth embodiment
  • FIG. 6 is a schematic diagram of a display panel after removing the source driver and the scan line array in the sixth embodiment.
  • the present invention is directed to the existing display panel.
  • the source driver needs to output a large swing across voltage, resulting in a technical problem of large power consumption.
  • the present invention can solve the above problem.
  • a display panel as shown in FIG. 1, the display panel includes a sub-pixel unit array, a source driver 20, a data line array, and a scan line array; wherein, the sub-pixel unit array includes a plurality of sub-pixels distributed in an array 10; the source driver 20 is used to provide a driving signal to the sub-pixel 10; the data line array includes a plurality of data lines 30 electrically connected to the source driver 20, for receiving the driving signal of the source driver 20 and transmitting to the sub Pixel 10; the scan line array includes a plurality of scan lines 40, and each of the scan lines 40 is connected to a row of sub-pixels 10.
  • Each of the data lines 30 is connected with the same number of sub-pixels 10 as the number of rows of the sub-pixel unit array, and each sub-pixel 10 of each row has one sub-pixel 10 corresponding to one data line 30 Connected; the sub-pixels 10 of each row and the sub-pixels 10 of each column include a first pixel 11 and a second pixel 12, the data line array provides the polarity of the first drive signal to the first pixel 11 Contrary to the polarity of the second driving signal provided to the second pixel 12, all the sub-pixels 10 connected to each of the data lines 30 are either the first pixel 11 or the second pixel 12.
  • all the sub-pixels 10 connected to each of the data lines 30 are sub-pixels 10 of the same polarity, and within one row scan period, the The sub-pixel 10 only needs to perform polarity conversion once, thereby reducing the power consumption of the source driver 20.
  • a first combination including two first pixels 11 and a second combination including two second pixels 12 are alternately arranged.
  • each column of the sub-pixels 10 a third combination including two of the first pixels 11 and a fourth combination including two of the second pixels 12 are alternately arranged.
  • the 1 + 2 line inversion mode is adopted. It should be understood that, in actual implementation, other line inversion modes may also be used.
  • one of the data lines 30 connects at least the sub-pixel 10 located in the nth row and m column, the sub-pixel 10 located in the n + 1th row and m column, and the sub-pixel 10 located in the n + 2 row and m + 2 column,
  • n is an odd number greater than or equal to 1
  • m is an integer greater than or equal to 1.
  • a display panel differs from the first embodiment only in the arrangement of the data lines 30; wherein, one of the data lines 30 is connected to at least the sub-pixels located in the nth row and m column 10.
  • Sub-pixel 10 located in the n + 1th row and m-column sub-pixel 10 located in the n + 2th row and m-2 column, sub-pixel 10 located in the n + 3th row and m-2 column, located in the n + 4th row
  • the sub-pixel 10 in the m-th row and the sub-pixel 10 in the m-th column in the n + 5th row, n is an odd number greater than or equal to 1, and m is an integer greater than 2.
  • a display panel differs from other embodiments only in the arrangement of the data lines 30; wherein, one of the data lines 30 is connected to at least the sub-pixels located in the nth row and m columns 10.
  • n is an odd number greater than or equal to 1
  • m is an integer greater than or equal to 1.
  • a display panel, as shown in FIG. 4, is different from other embodiments only in the arrangement of the data lines 30; wherein, one of the data lines 30 is connected to at least the sub-pixels located in the nth row and m columns 10.
  • the sub-pixel 10 in the row m-4 column and the sub-pixel 10 in the n + 5 row m-4 column, n is an odd number greater than or equal to 1, and m is an integer greater than 4.
  • a display panel, as shown in FIG. 5, differs from other embodiments only in the arrangement of the data lines 30; wherein, the first data lines 31 are connected to the sub-pixels 10 at the nth row and mth column at least in sequence , The sub-pixel 10 located in the n + 1 row and m column, the sub-pixel 10 located in the n + 2 row and m + 1 column, the sub-pixel 10 located in the n + 3 row and m + 1 column, and located in the n + 4 row The sub-pixel 10 in the m-column and the sub-pixel 10 in the m-column in the n + 5th row; the second data line 32 adjacent to the first data line 31 at least sequentially connects the sub-pixel 10 in the m + 1-column in the nth row, Sub-pixels 10 in the n + 1th row and m + 1 column, sub-pixels 10 in the n + 2th row and m-column, sub-pixels 10 in the n + 3
  • a display panel, as shown in FIG. 6, differs from other embodiments only in the arrangement of the data lines 30; wherein, the first data lines 31 are connected to the sub-pixels 10 at the nth row and mth column at least in sequence , The sub-pixel 10 located in the n + 1 row and m + 1 column, the sub-pixel 10 located in the n + 2 row and m + 2 column, the sub-pixel 10 located in the n + 3 row and m + 2 column, and located in the n + The sub-pixels 10 in the 4th row and m + 1 column, and the sub-pixels 10 in the n + 5th row and m column; the second data line 32 adjacent to the first data line 31 connects at least the ones in the nth row and m + 1 column Sub-pixel 10, sub-pixel 10 in the n + 1th row and m-1 column, sub-pixel 10 in the n + 2th row and m-2 column, sub-pixel 10 in the n + 3th row and m-2 column,
  • a liquid crystal display device includes the above-mentioned display panel.
  • the beneficial effects of the present invention are: combining the 1 + 2 row inversion mode and the column inversion mode, all the sub-pixels 10 connected to each of the data lines 30 are pixels of the same polarity, scanned in one row During the period, the sub-pixels 10 on one data line 30 only need to perform polarity conversion once, thereby reducing the power consumption of the source driver 20.

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

Abstract

L'invention concerne un panneau d'affichage comprenant un réseau d'unités de sous-pixels et une pluralité de lignes de données (30), chaque ligne de données (30) étant connectée au même nombre de sous-pixels (10) que le nombre de rangées du réseau d'unités de sous-pixels, et un sous-pixel (10) dans chaque rangée de sous-pixels (10) étant connecté de manière correspondante à la ligne de données (30) ; chaque rangée de sous-pixels (10) et chaque colonne de sous-pixels (10) comprennent tous les deux des premiers pixels (11) et des seconds pixels (12), et tous les sous-pixels (10) connectés à chaque ligne de données (30) sont soit des premiers pixels (11) soit des seconds pixels (12).
PCT/CN2019/070928 2018-10-23 2019-01-09 Panneau d'affichage et dispositif d'affichage à cristaux liquides WO2020082618A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811233183.6 2018-10-23
CN201811233183.6A CN109215600A (zh) 2018-10-23 2018-10-23 显示面板及液晶显示装置

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WO2020082618A1 true WO2020082618A1 (fr) 2020-04-30

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CN110456586B (zh) * 2019-08-22 2021-08-06 京东方科技集团股份有限公司 显示基板、显示面板和显示装置
CN113327541A (zh) * 2020-02-28 2021-08-31 京东方科技集团股份有限公司 阵列基板、显示面板及显示装置
CN114415431A (zh) * 2020-10-28 2022-04-29 瀚宇彩晶股份有限公司 显示面板及其制作方法
CN113589608B (zh) * 2021-07-09 2023-12-29 Tcl华星光电技术有限公司 显示面板及显示终端

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