WO2019000638A1 - 显示装置及其驱动方法 - Google Patents

显示装置及其驱动方法 Download PDF

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Publication number
WO2019000638A1
WO2019000638A1 PCT/CN2017/100325 CN2017100325W WO2019000638A1 WO 2019000638 A1 WO2019000638 A1 WO 2019000638A1 CN 2017100325 W CN2017100325 W CN 2017100325W WO 2019000638 A1 WO2019000638 A1 WO 2019000638A1
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WIPO (PCT)
Prior art keywords
core
sub
light
light emitting
pixel
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PCT/CN2017/100325
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English (en)
French (fr)
Inventor
王明良
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惠科股份有限公司
重庆惠科金渝光电科技有限公司
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Priority to US15/869,755 priority Critical patent/US20190005903A1/en
Publication of WO2019000638A1 publication Critical patent/WO2019000638A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • 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
    • 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

Definitions

  • the present application relates to a backlight design of a display device, and more particularly to a display device and a driving method thereof.
  • a pixel of a conventional liquid crystal display panel is generally composed of three types of sub-pixels, that is, three types of sub-pixels: R (red sub-pixel), G (green sub-pixel), and B (blue sub-pixel).
  • R red sub-pixel
  • G green sub-pixel
  • B blue sub-pixel
  • RGBW arrangement a new type of pixel configuration and arrangement of sub-pixels.
  • the RGBW arrangement is such that one pixel is composed of four sub-pixels, that is, one pixel has a W sub-pixel (white sub-pixel) in addition to the conventional RGB three sub-pixels.
  • the arrangement of each sub-pixel in the RGBW pixel can be various.
  • RGBW pixels add a W sub-pixel such a screen will make the picture brighter and the image color will be more vivid when displaying the picture.
  • a RGBW pixel adds a W sub-pixel in the case of the same transmittance, the size ratio of the picture occupied by a single sub-pixel is reduced in the display area of the same size. In this way, the screen brightness is reduced when the screen displays a solid color (that is, a picture displaying RGB three sub-pixels separately), and under the same gray level, compared with the conventional RGB liquid crystal display panel, the expected display effect is not achieved. .
  • the aperture ratio of R, G, and B becomes 75% of the RGB three-primary color display panel, and when a solid color screen is displayed, for example, pure red, pure green, pure blue solid color screen, RGBW liquid crystal display panel display
  • a solid color screen for example, pure red, pure green, pure blue solid color screen, RGBW liquid crystal display panel display
  • the brightness of the picture will be lower than that of the conventional RGB liquid crystal display panel, which will affect the display effect.
  • an object of the present invention is to provide a backlight design of a display device, and more particularly to a display device and a driving method thereof, which can improve not only the problem of insufficient display brightness of a solid color picture, but also a solid color picture.
  • the grayscale limit also improves the color gamut and improves the contrast of the display.
  • a display device includes: a display panel including a plurality of pixels, the pixels including a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel; a backlight module The backlight module is disposed opposite to the display panel, wherein the backlight module includes a light source, and the light source has a plurality of light-emitting cores, including a first light-emitting core, a second light-emitting core, and a third light-emitting core; and a driving module.
  • the method includes: a processing unit configured to analyze data of a to-be-displayed image; a detecting unit configured to detect and determine that the to-be-displayed picture is a solid color picture or a color picture; and a control unit configured to control the plurality of illumination cores a light-emitting state to emit light required for the picture to be displayed.
  • the plurality of light emitting cores are color light emitting diodes.
  • the first illuminating core is a red illuminating diode
  • the second illuminating core is a green illuminating diode
  • the third illuminating core is a blue illuminating diode.
  • control unit controls the red LED, and the green LED and the blue LED are turned on or turned on separately.
  • Another object of the present application is a driving method of a display device, comprising: acquiring and analyzing, by a processing unit, a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel in a to-be-displayed picture Gray level value data; detecting and determining that the picture to be displayed is a solid color picture or a color picture through a detecting unit; if the picture to be displayed is a solid color picture, controlling a core of at least one of the plurality of light emitting cores to be turned on by a control unit If the picture to be displayed is a color picture, the plurality of light-emitting cores are controlled to be turned on together by the control unit to emit white light.
  • the plurality of illuminating cores comprise a red illuminating core, a green illuminating core and a blue illuminating core.
  • the plurality of light emitting cores are color light emitting diodes.
  • the plurality of illuminating cores include a first illuminating core, a second illuminating core, and a third illuminating core.
  • the first illuminating core is a red illuminating diode
  • the second illuminating core is a green illuminating diode
  • the third illuminating core is a blue illuminating diode.
  • control unit controls the red LED, and the green LED and the blue LED are turned on or turned on separately.
  • an open state and a closed state of the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively associated with the red light-emitting core, the green light-emitting core, and the The open state and the closed state of the blue light-emitting core correspond to each other.
  • the color displayed by the solid color picture is a color of one of red, green, and blue
  • the red light emitting core, the green light emitting core, and one of the blue light emitting cores corresponds to be turned on, the other light-emitting cores are turned off, and the corresponding sub-pixels and fourth sub-pixels of the core are opened to transparently form and form the solid color picture.
  • the color displayed on the solid color screen is a color formed by at least two of red, green, and blue
  • the red light emitting core, the green light emitting core, and the blue light emitting The corresponding at least two of the cores of the core are turned on, and the sub-pixels and the fourth sub-pixels of the corresponding core are opened to transparently form and form the solid color picture.
  • the red light emitting core, the green light emitting core, and the blue light emitting core are turned on together, and the mixed light emits white light, corresponding to the core sub-pixel and The fourth sub-pixel is turned on.
  • Another display device proposed by the present application includes: a display panel including a plurality of pixels, the pixel including a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel; a backlight module, the backlight module is disposed opposite to the display panel; wherein the backlight module includes a light source, and the light source has a plurality of light-emitting cores The first lighting core, the second lighting core, and the third lighting core; a driving module, comprising: a processing unit for analyzing data of the to-be-displayed image; and a detecting unit, configured to detect and determine that the to-be-displayed image is a light-colored picture or a color picture; a control unit for controlling the light-emitting state of the plurality of light-emitting cores to emit light required for the image to be displayed; wherein the backlight module includes a light source, and the light source has a plurality of The illuminating core includes a first illuminating core
  • the application can improve the problem of insufficient display brightness of the solid color picture, and is not limited by the gray scale of the solid color picture, and can also improve the color gamut and improve the contrast of the display picture.
  • FIG. 1 is a schematic diagram of an exemplary RGB pixel structure.
  • FIG. 2 is a schematic diagram of an exemplary RGBW pixel structure.
  • FIG. 3 is a schematic diagram of a backlight module according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of pixel display of a solid color picture according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a display device according to an embodiment of the present application.
  • FIG. 6 is a flowchart of driving of a display device according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a pixel structure of a solid color picture according to an embodiment of the present application.
  • the word “comprising” is to be understood to include the Pieces, but do not exclude any other components.
  • “on” means located above or below the target component, and does not mean that it must be on the top based on the direction of gravity.
  • the liquid crystal display panel of the present application may be a curved display panel, and the liquid crystal display device of the present application may also be a curved display device.
  • FIG. 1 is a schematic diagram of an exemplary RGB pixel structure and FIG. 2 is a schematic diagram of an exemplary RGBW pixel structure.
  • the total number of sub-pixels (dot) of the RGBW pixel structure is the same as the total number of sub-pixels of the RGB pixel structure, and the total number thereof is 1080*1920.
  • the solid color sub-pixels of the RGBW pixel structure are made to have only 75% of the pure color sub-pixels of the RGB pixel structure.
  • the number of R sub-pixels is the total number of dots/3, but in the RGBW pixel structure, the number of R sub-pixels is the total number of dots/4. Therefore, in the RGBW pixel structure, the number of R sub-pixels is only 75% of the RGB pixel structure.
  • the exemplary backlight is a light-emitting diode (LED) white light source
  • the W sub-pixel is turned off, so the display device of the RGBW pixel structure displays a solid color picture (for example, a pure red picture, a pure green picture).
  • a solid color picture for example, a pure red picture, a pure green picture.
  • FIG. 3 is a schematic diagram of a backlight module according to an embodiment of the present application.
  • a backlight module includes a light source 10, and the light source 10 has a plurality of light-emitting cores, including a first The illuminating core 110, the second illuminating core 120 and the third illuminating core 130.
  • the first illuminating core 110 may be, for example, a red illuminating core 110
  • the second illuminating core 120 may be, for example, a green illuminating core 120
  • the third illuminating core 130 may be, for example, a blue illuminating core 130 .
  • the plurality of light emitting cores 110, 120, and 130 are color light emitting diodes (LEDs).
  • FIG. 4 is a schematic diagram of pixel display of a solid color screen according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a display device according to an embodiment of the present application.
  • the display device 30 includes a display panel 310 including a plurality of pixels, the pixels including a red sub-pixel 210, a green sub-pixel 220, a blue sub-pixel 230, and a white sub-pixel 240; a backlight module 320, the backlight module
  • the backlight module 320 includes a light source 10, and the light source 10 has a plurality of light-emitting cores, including a first light-emitting core 110, a second light-emitting core 120, and a third light-emitting core 130.
  • a driving module 330 comprising: a processing unit for analyzing data of a picture to be displayed; a detecting unit, configured to detect and determine that the picture to be displayed is a solid color picture of one of the three primary colors, at least two of the three primary colors are mixed Solid color a picture or a color picture; a control unit for controlling the light-emitting state of the plurality of light-emitting cores to emit light required for the picture to be displayed.
  • the plurality of light emitting cores 110, 120, and 130 are color light emitting diodes (LEDs).
  • the first illuminating core 110 may be, for example, a red LED 110
  • the second illuminating core 120 may be, for example, a green LED 120
  • the third illuminating core 130 may be, for example, blue. Color LED 130.
  • control unit controls the red LED 110, and the green LED 120 and the blue LED 130 are turned on or turned on separately.
  • the plurality of LEDs 110, 120, and 130 can operate independently or in multiple linkages to meet the screen display in various situations.
  • FIG. 6 is a flowchart of driving of a display device according to an embodiment of the present application.
  • a driving method of the display device 30 includes: providing the display device 30, and if the screen to be displayed is a solid color screen, pass the driving module 330. Controlling the light emitting diodes of at least one of the plurality of light emitting diodes 110, 120, 130 to be turned on; if the picture to be displayed is a color picture, controlling the plurality of light emitting diodes 110, 120, and 130 through the driving module 330 Turn on, and emit white light with mixed illumination.
  • the process of turning on the solid color picture includes:
  • Step S110 Whether to start the solid color picture improvement.
  • the switch is a solid color picture enhancement effect, and the viewer can select different display effects of the display device 30 according to requirements;
  • Step S120 If not, enter the color picture, that is, the normal mode; if yes, analyze the data of the picture to be displayed by the processing unit.
  • Step S130 determining whether it is a solid color picture.
  • the detection unit detects and determines that the to-be-displayed picture is a solid color picture or a color picture. If it is a color picture, that is, the normal mode, the picture to be displayed is presented by the control unit; if it is a color picture, the next step is a solid color picture analysis.
  • Step S140 analyzing the color and gray scale of the solid color picture.
  • the color and gray scale of the solid color picture are analyzed by the control unit to determine a picture effect to be displayed.
  • Step S150 The corresponding illumination core of the backlight module is activated, and at the same time, the gray scale is synchronously sent to the white sub-pixel.
  • the control unit controls a plurality of light-emitting cores (which can be exemplified as light-emitting diodes) to emit light, and presents the solid color picture, thereby enhancing the solid color picture display effect.
  • the red sub-pixel 210, the green sub-pixel 220, and the blue sub-pixel 230 are turned on and off, respectively, with the red LED 110 and the green LED. 120.
  • the open state and the closed state of the blue LED 130 correspond to each other.
  • the color displayed on the solid color screen is a color of one of red, green, and blue
  • the red The cores of the color LEDs 110, the green LEDs 120 and the blue LEDs 130 are turned on, the other LEDs are turned off, and the corresponding sub-pixels and white sub-pixels 240 are opened to form and form the Solid color picture.
  • the color displayed on the solid color screen is a color formed by at least two of red, green, and blue
  • the red LED 110, the green LED 120, and the blue The corresponding at least two of the light-emitting diodes of the color light-emitting diodes 130 are turned on, and the sub-pixels corresponding to the core and the white sub-pixels 240 are opened to penetrate and form the solid color picture.
  • the picture to be displayed is a color picture, that is, the normal mode
  • the red LED 110, the green LED 120, and the blue LED 130 are turned on together, and the white light is emitted by the mixed light.
  • the sub-pixels corresponding to the core and the white sub-pixels 240 are turned on.
  • FIG. 7 is a schematic diagram of a pixel structure of a solid color picture according to an embodiment of the present application. Based on the technology of the present application and its features, the present application is further supplemented by taking a red solid color picture as an example. Referring to FIG. 3 to FIG. 7 simultaneously, in an embodiment of the present application, when the driving module detects that the proportion of red in the to-be-displayed picture is greater than a predetermined value, it determines that it is a red solid color picture; and then, the backlight The red LED 110 of the module is turned on, and the green LED 120 and the blue LED 130 are turned off to expose the red backlight. Meanwhile, in the plurality of sub-pixel structures, the corresponding red sub-pixel 210 is turned on.
  • the white sub-pixel 240, the green sub-pixel 220 and the blue sub-pixel 230 are turned off; the red backlight is transmitted through the red sub-pixel 210 and the white sub-pixel 240 (which can be as shown in FIG. 4 Show) to display a red solid color screen.
  • the predetermined value is set according to the requirements of the actual application, and may be, for example, 98% or 90%, etc., which is not limited herein.
  • the sub-pixel structure of the red solid color picture is as shown in FIG. 7.
  • the white sub-pixel 240 may be identical to the red sub-pixel 210, and the actual red sub-pixel 210.
  • the quantity is one-half of the total number of dots.
  • the red sub-pixels occupy one third of the total number of dots, and the present application improves the transmittance of the red sub-pixels, and the displayed red solid color picture can have higher brightness and enhance the viewer's Experience the effect.
  • other situations such as a green solid color picture or a blue solid color picture, etc.
  • a green solid color picture or a blue solid color picture, etc. may be analogously implemented in accordance with the techniques of the present application and its features. Since the present application improves the transmittance of a pixel, for all gray scales, from the darkest to the brightest, there is an equivalent effect, and is not limited to a certain grayscale image.
  • the plurality of light emitting diodes may be other color light emitting diodes for different needs; moreover, when the direct type backlight module is matched, the plurality of light emitting diodes are in different display areas. Different color LEDs can be configured to make different display areas have different display effects to enhance the display color gamut and experience effects.
  • the display panel of the display device may adopt TN (Twisted Nematic), STN (Super Twisted Nematic), OCB (Optically Compensated Birefringence), VA Drooping Vertical Alignment type display panel, but is not limited to this.
  • the display panel of the display device may be a display panel having a curved panel.
  • the application can improve the problem of insufficient display brightness of the solid color picture, and is not limited by the gray scale of the solid color picture, and can also improve the color gamut and improve the contrast of the display picture.

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Abstract

一种显示装置（30）及其驱动方法，显示装置（30）包括：一显示面板（310），包括多个像素，像素包括红色子像素（210）、绿色子像素（220）、蓝色子像素（230）及白色子像素（240）；一背光模块（320），背光模块（320）与显示面板（310）相对配置；其中，背光模块（320）包括一光源（10），光源（10）具有多个发光核心，包括第一发光核心（110）、第二发光核心（120）及第三发光核心（130）；一驱动模块（330），包括：一处理单元，用以分析待显示画面的数据；一检测单元，用以检测并判断待显示画面为纯色画面或彩色画面；一控制单元，用以控制多个发光核心的发光状态，以发出待显示画面所需的光线。

Description

显示装置及其驱动方法 技术领域
本申请涉及一种显示装置的背光设计，特别是涉及一种显示装置及其驱动方法。
背景技术
现有的液晶显示面板的像素通常由三类子像素组成，即由R(红色子像素)、G(绿色子像素)和B(蓝色子像素)这三类子像素组成。随着液晶显示技术的发展，又有新型的像素构成及子像素的排列方式被提出，例如RGBW排列方式等。RGBW排列方式就是一个像素由四个子像素构成，即一个像素中除了常规的RGB三个子像素之外，还多增了一个W子像素(白色子像素)。RGBW像素中各个子像素的排列方式可以有多种。由于RGBW像素增加了一个W子像素，因此这类屏幕在显示画面的时候会使得画面更明亮，图像颜色会更加鲜艳。然而，同样由于RGBW像素增加了一个W子像素，在穿透率相同的情况下，在相同大小的显示区域中，单个子像素所占画面的大小比例就会降低。这样也就使得屏幕在显示纯色(即单独显示RGB三种子像素的画面)画面时屏幕亮度降低，在相同的灰阶下，相对于常规的RGB液晶显示面板，会导致达不到预期的显示效果。
因为引入了W像素，所以R、G和B的开口率变为RGB三基色显示面板的75％，在显示纯色画面时，例如纯红，纯绿，纯蓝的纯色画面，RGBW液晶显示面板显示的画面亮度会低于常规RGB液晶显示面板的画面亮度，影响显示效果，此类问题亟需解决。
发明内容
为了解决上述技术问题，本申请的目的在于，提供一种显示装置的背光设计，特别是涉及一种显示装置及其驱动方法，不仅可以改善纯色画面的显示亮度不足的问题，且不受纯色画面的灰阶限制，还可以提升色域及提高显示画面的对比度。
本申请的目的及解决其技术问题是采用以下技术方案来实现的。依据本申请提出的一种显示装置，包括：一显示面板，包括多个像素，所述像素包括第一子像素、第二子像素、第三子像素及第四子像素；一背光模块，所述背光模块与所述显示面板相对配置；其中，所述背光模块包括一光源，所述光源具有多个发光核心，包括第一发光核心、第二发光核心及第三发光核心；一驱动模块，包括：一处理单元，用以分析待显示画面的数据；一检测单元，用以检测并判断所述待显示画面为纯色画面或彩色画面；一控制单元，用以控制所述多个发光核心的发光状态，以发出所述待显示画面所需的光线。
本申请的目的及解决其技术问题还可采用以下技术措施进一步实现。
在本申请的一实施例中，所述多个发光核心为彩色发光二极管。
在本申请的一实施例中，所述第一发光核心为红色发光二极管，所述第二发光核心为绿色发光二极管，所述第三发光核心为蓝色发光二极管。
在本申请的一实施例中，所述控制单元，控制所述红色发光二极管，所述绿色发光二极管及所述蓝色发光二极管共同开启或单独开启。
本申请的另一目的为一种显示装置的驱动方法，包括：通过一处理单元，，获取并分析待显示画面中第一子像素、第二子像素、第三子像素及第四子像素的灰阶值数据；通过一检测单元，检测并判断所述待显示画面为纯色画面或彩色画面；若待显示画面为纯色画面，通过一控制单元，控制多个发光核心中至少之一的核心开启；若待显示画面为彩色画面，通过所述控制单元，控制所述多个发光核心共同开启，以发出白光。其中，所述多个发光核心包括红色发光核心，绿色发光核心及蓝色发光核心。
在本申请的一实施例中，所述多个发光核心为彩色发光二极管。
在本申请的一实施例中，所述多个发光核心，包括第一发光核心、第二发光核心及第三发光核心。
在本申请的一实施例中，所述第一发光核心为红色发光二极管，所述第二发光核心为绿色发光二极管，所述第三发光核心为蓝色发光二极管。
在本申请的一实施例中，所述控制单元，控制所述红色发光二极管，所述绿色发光二极管及所述蓝色发光二极管共同开启或单独开启。
在本申请的一实施例中，所述第一子像素、所述第二子像素、所述第三子像素的开启状态及关闭状态分别与所述红色发光核心、所述绿色发光核心、所述蓝色发光核心的开启状态及关闭状态相对应。
在本申请的一实施例中，若所述纯色画面显示的颜色为红色、绿色、蓝色之一的颜色，所述红色发光核心、所述绿色发光核心及所述蓝色发光核心之一的核心对应开启，其他发光核心关闭，对应核心的子像素及第四子像素打开，以透出并形成所述纯色画面。
在本申请的一实施例中，若所述纯色画面显示的颜色为红色、绿色、蓝色中至少其二混合形成的颜色，所述红色发光核心、所述绿色发光核心及所述蓝色发光核心中对应的至少其二的发光核心开启，对应核心的子像素及第四子像素打开，以透出并形成所述纯色画面。
在本申请的一实施例中，若待显示画面为彩色画面，所述红色发光核心、所述绿色发光核心及所述蓝色发光核心共同开启，以混合发光发出白光，对应核心的子像素及第四子像素打开。
本申请提出的另一种显示装置，包括：一显示面板，包括多个像素，所述像素包括第一子像素、 第二子像素、第三子像素及第四子像素；一背光模块，所述背光模块与所述显示面板相对配置；其中，所述背光模块包括一光源，所述光源具有多个发光核心，包括第一发光核心、第二发光核心及第三发光核心；一驱动模块，包括：一处理单元，用以分析待显示画面的数据；一检测单元，用以检测并判断所述待显示画面为纯色画面或彩色画面；一控制单元，用以控制所述多个发光核心的发光状态，以发出所述待显示画面所需的光线；其中，所述背光模块包括一光源，所述光源具有多个发光核心，包括第一发光核心、第二发光核心及第三发光核心；其中，所述第一发光核心为红色发光二极管，所述第二发光核心为绿色发光二极管，所述第三发光核心为蓝色发光二极管；其中，所述控制单元，控制所述红色发光二极管，所述绿色发光二极管及所述蓝色发光二极管共同开启或单独开启。
本申请通过对背光模块的光源设计，取代一般性的白光光源，可以改善纯色画面的显示亮度不足的问题，且不受纯色画面的灰阶限制，还可以提升色域及提高显示画面的对比度。
附图说明
图1为范例性的RGB像素结构的示意图。
图2为范例性的RGBW像素结构的示意图。
图3为本申请一实施例的背光模块示意图。
图4为本申请一实施例的纯色画面的像素显示示意图。
图5为本申请一实施例的显示装置结构示意图。
图6为本申请一实施例的显示装置的驱动流程图。
图7为本申请一实施例的纯色画面的像素结构示意图。
具体实施方式
以下各实施例的说明是参考附加的图式，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」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申请，而非用以限制本申请。
附图和说明被认为在本质上是示出性的，而不是限制性的。在图中，结构相似的单元是以相同标号表示。另外，为了理解和便于描述，附图中示出的每个组件的尺寸和厚度是任意示出的，但是本申请不限于此。
在附图中，为了清晰起见，夸大了层、膜、面板、区域等的厚度。在附图中，为了理解和便于描述，夸大了一些层和区域的厚度。将理解的是，当例如层、膜、区域或基底的组件被称作“在”另一组件“上”时，所述组件可以直接在所述另一组件上，或者也可以存在中间组件。
另外，在说明书中，除非明确地描述为相反的，否则词语“包括”将被理解为意指包括所述组 件，但是不排除任何其它组件。此外，在说明书中，“在......上”意指位于目标组件上方或者下方，而不意指必须位于基于重力方向的顶部上。
为更进一步阐述本申请为达成预定申请目的所采取的技术手段及功效，以下结合附图及较佳实施例，对依据本申请提出的一种显示装置及其驱动方法，其具体实施方式、结构、特征及其功效，详细说明如后。
在一些实施例中，本申请的液晶显示面板可为曲面型显示面板，且本申请的液晶显示设备亦可为曲面型显示装置。
图1为范例性的RGB像素结构的示意图及图2为范例性的RGBW像素结构的示意图。请参考图1和图2，RGBW像素结构的子像素(dot)的总数与RGB像素结构的子像素的总数一样，其总数均为1080*1920个。
由此，使得RGBW像素结构的纯色子像素(例如红色(R)子像素、绿色(G)子像素、蓝色(B)子像素)只有RGB像素结构的纯色子像素的75％。以R子像素而言，原范例性的RGB像素结构中，R子像素的的数量为dot总数量/3，但是在RGBW像素结构中，R子像素的数量为dot总数量/4。因此在RGBW像素结构中，R子像素的数量只有RGB像素结构的75％。又因范例性的背光源为发光二极管(LED)白光源，在其显示纯色画面时，W子像素是关闭的，所以RGBW像素结构的显示装置在显示纯色画面(例如纯红画面，纯绿画面，纯蓝画面)时，只有对应的RGB子像素亮起，其显示效果只有原RGB像素结构的75％，导致显示强度不足。
图3为本申请一实施例的背光模块示意图，请参考图3，在本申请的一实施例中，一种背光模块，包括一光源10，所述光源10具有多个发光核心，包括第一发光核心110、第二发光核心120及第三发光核心130。其中，所述第一发光核心110可例如为红色发光核心110，所述第二发光核心120可例如为绿色发光核心120，所述第三发光核心130可例如为蓝色发光核心130。
在本申请的一实施例中，所述多个发光核心110、120、130为彩色发光二极管(LED，Light Emitting Diode)。
图4为本申请一实施例的纯色画面的像素显示示意图，图5为本申请一实施例的显示装置结构示意图，请同时参考图3至图5，在本申请的一实施例中，一种显示装置30，包括：一显示面板310，包括多个像素，所述像素包括红色子像素210、绿色子像素220、蓝色子像素230及白色子像素240；一背光模块320，所述背光模块320与所述显示面板310相对配置；其中，所述背光模块320包括一光源10，所述光源10具有多个发光核心，包括第一发光核心110、第二发光核心120及第三发光核心130；一驱动模块330，包括：一处理单元，用以分析待显示画面的数据；一检测单元，用以检测并判断所述待显示画面为三原色中之一的纯色画面，三原色中至少其二混合的纯色 画面或彩色画面；一控制单元，用以控制所述多个发光核心的发光状态，以发出所述待显示画面所需的光线。
在本申请的一实施例中，所述多个发光核心110、120、130为彩色发光二极管(LED)。
在本申请的一实施例中，所述第一发光核心110可例如为红色发光二极管110，所述第二发光核心120可例如为绿色发光二极管120，所述第三发光核心130可例如为蓝色发光二极管130。
在本申请的一实施例中，所述控制单元，控制所述红色发光二极管110，所述绿色发光二极管120及所述蓝色发光二极管130共同开启或单独开启。具体而言，所述多个发光二极管110、120、130可独立运作，亦可多个联动运作，以此满足多种情形下的画面显示。
图6为本申请一实施例的显示装置的驱动流程图。请参考图3至图6，在本申请的一实施例中，一种显示装置30的驱动方法，包括：提供所述的显示装置30，若待显示画面为纯色画面，通过所述驱动模块330，控制所述多个发光二极管110、120、130中至少之一的发光二极管开启；若待显示画面为彩色画面，通过所述驱动模块330，控制所述多个发光二极管110、120、130共同开启，以混合发光发出白光。
请参考图6，在本申请的一实施例中，开启所述纯色画面的流程包括：
步骤S110：是否要启动纯色画面改善。其即为一纯色画面增强效果的开关，观赏者可根据需求，选择所述显示装置30的不同显示效果；
步骤S120：若否，进入彩色画面，即普通模式；若是，通过所述处理单元，分析待显示画面的数据。
步骤S130：判断是否为纯色画面。通过所述检测单元，检测并判断所述待显示画面为纯色画面或彩色画面。若为彩色画面，即所述普通模式，通过所述控制单元呈现所述待显示画面；若为彩色画面，则进入下一步的纯色画面分析。
步骤S140：分析纯色画面颜色与灰阶。通过所述控制单元，对所述纯色画面的颜色和灰阶进行分析，以确定待显示的画面效果。
步骤S150：启动背光模块的相应发光核心，同时，灰阶同步送至白色子像素。通过所述控制单元控制多颗发光核心(可例示为发光二极管)发光，呈现所述纯色画面，以此增强纯色画面显示效果。
在本申请的一实施例中，所述红色子像素210、所述绿色子像素220、所述蓝色子像素230的开启状态及关闭状态分别与所述红色发光二极管110、所述绿色发光二极管120、所述蓝色发光二极管130的开启状态及关闭状态相对应。
在本申请的一实施例中，若所述纯色画面显示的颜色为红色、绿色、蓝色之一的颜色，所述红 色发光二极管110、所述绿色发光二极管120及所述蓝色发光二极管130之一的核心对应开启，其他发光二极管关闭，对应核心的子像素及白色子像素240打开，以透出并形成所述纯色画面。
在本申请的一实施例中，若所述纯色画面显示的颜色为红色、绿色、蓝色中至少其二混合形成的颜色，所述红色发光二极管110、所述绿色发光二极管120及所述蓝色发光二极管130中对应的至少其二的发光二极管开启，对应核心的子像素及白色子像素240打开，以透出并形成所述纯色画面。
在本申请的一实施例中，若待显示画面为彩色画面，即普通模式，所述红色发光二极管110、所述绿色发光二极管120及所述蓝色发光二极管130共同开启，以混合发光发出白光，对应核心的子像素及白色子像素240打开。
图7为本申请一实施例的纯色画面的像素结构示意图。基于本申请的技术及其特征，以下以红色纯色画面为例，对本申请做进一步的补充。请同时参考图3到图7，在本申请的一实施例中，当所述驱动模块检测到待显示画面中红色的比例大于设置预定值时，判定其为红色纯色画面；而后，所述背光模块的所述红色发光二极管110开启，所述绿色发光二极管120及所述蓝色发光二极管130关闭，以此透出红色背光；同时，多个子像素结构中，开启对应的所述红色子像素210和所述白色子像素240，关闭所述绿色子像素220和所述蓝色子像素230；所述红色背光，透过所述红色子像素210及所述白色子像素240(其可如图4所示)，以显示红色纯色画面。
在本申请的一实施例中，所述设置预定值依据实际应用的需求而定，可例如为98％或90％等，本文不加以限制。
在本申请的一实施例中，所述红色纯色画面的子像素结构如图7，在一实施例中，所述白色子像素240可等同于所述红色子像素210，实际的红色子像素210数量为dot总数量二分之一。相对于范例性的RGB像素结构中红色子像素占dot总数量三分之一，本申请提高了红色子像素的透过率，所显示的红色纯色画面可以具有更高的亮度，提高观赏者的体验效果。
在一些实施例中，其他情形如绿色纯色画面或蓝色纯色画面等，其依据本申请的技术及其特征，可类比实现。由于本申请提高像素的透过率，对于所有灰阶，从最暗到最亮，都具备等效的效果，而不限制于某一个灰阶画面。
在一些实施例中，针对不同的需求，所述多个发光二极管可以为其他颜色的发光二极管；更甚，在配合直下式的背光模块时，所述多个发光二极管，其在不同的显示区域，可以配置不同颜色的发光二极管，使得不同显示区域具有不同的显示效果，以提升显示色域，及体验效果。此外，在一些实施例中，显示装置的显示面板可以采用TN(扭曲向列，Twisted Nematic)、STN(超扭曲向列，Super Twisted Nematic)、OCB(光学补偿弯曲排列，Optically Compensated Birefringence)、VA(垂 直配向，Vertical Alignment)型的显示面板，但并不限于此。显示装置的显示面板可以为具有曲面面板的显示面板。
本申请通过对背光模块的光源设计，取代一般性的白光光源，可以改善纯色画面的显示亮度不足的问题，且不受纯色画面的灰阶限制，还可以提升色域及提高显示画面的对比度。
“在一些实施例中”及“在各种实施例中”等用语被重复地使用。所述用语通常不是指相同的实施例；但它也可以是指相同的实施例。“包含”、“具有”及“包括”等用词是同义词，除非其前后文意显示出其它意思。
以上所述，仅是本申请的较佳实施例而已，并非对本申请作任何形式上的限制，虽然本申请已以较佳实施例揭露如上，然而并非用以限定本申请，任何熟悉本专业的技术人员，在不脱离本申请技术方案范围内，当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本申请技术方案的内容，依据本申请的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本申请技术方案的范围内。

Claims (20)

  1. 一种显示装置，包括：
    一显示面板，包括多个像素，所述像素包括第一子像素、第二子像素、第三子像素及第四子像素；
    一背光模块，所述背光模块与所述显示面板相对配置；
    其中，所述背光模块包括一光源，所述光源具有多个发光核心，包括第一发光核心、第二发光核心及第三发光核心；
    一驱动模块，包括：
    一处理单元，用以分析待显示画面的数据；
    一检测单元，用以检测并判断所述待显示画面为纯色画面或彩色画面；
    一控制单元，用以控制所述多个发光核心的发光状态，以发出所述待显示画面所需的光线。
  2. 如权利要求1所述的显示装置，其中，所述多个发光核心为彩色发光二极管。
  3. 如权利要求1所述的显示装置，其中，所述第一发光核心为红色发光二极管，所述第二发光核心为绿色发光二极管，所述第三发光核心为蓝色发光二极管。
  4. 如权利要求3所述的显示装置，其中，所述控制单元，控制所述红色发光二极管、所述绿色发光二极管及所述蓝色发光二极管共同开启。
  5. 如权利要求3所述的显示装置，其中，所述控制单元，控制所述红色发光二极管单独开启。
  6. 如权利要求3所述的显示装置，其中，所述控制单元，控制所述绿色发光二极管单独开启。
  7. 如权利要求3所述的显示装置，其中，所述控制单元，控制所述蓝色发光二极管单独开启。
  8. 一种显示装置的驱动方法，所述驱动方法包括：
    通过一处理单元，获取并分析待显示画面中第一子像素、第二子像素、第三子像素及第四子像素的灰阶值数据；
    通过一检测单元，检测并判断所述待显示画面为纯色画面或彩色画面；
    若待显示画面为纯色画面，通过一控制单元，控制多个发光核心中至少之一的核心开启；
    若待显示画面为彩色画面，通过所述控制单元，控制所述多个发光核心共同开启，以发出白光；
    其中，所述多个发光核心包括红色发光核心，绿色发光核心及蓝色发光核心。
  9. 如权利要求8所述的显示装置的驱动方法，其中，所述多个发光核心为彩色发光二极管。
  10. 如权利要求8所述的显示装置的驱动方法，其中，所述多个发光核心，包括第一发光核心、第二发光核心及第三发光核心。
  11. 如权利要求10所述的显示装置的驱动方法，其中，所述第一发光核心为红色发光二极管，所述 第二发光核心为绿色发光二极管，所述第三发光核心为蓝色发光二极管。
  12. 如权利要求11所述的显示装置的驱动方法，其中，所述控制单元，控制所述红色发光二极管、所述绿色发光二极管及所述蓝色发光二极管共同开启。
  13. 如权利要求11所述的显示装置的驱动方法，其中，所述控制单元，控制所述红色发光二极管单独开启。
  14. 如权利要求11所述的显示装置的驱动方法，其中，所述控制单元，控制所述绿色发光二极管单独开启。
  15. 如权利要求11所述的显示装置的驱动方法，其中，所述控制单元，控制所述蓝色发光二极管单独开启。
  16. 如权利要求8所述的显示装置的驱动方法，其中，所述第一子像素、所述第二子像素、所述第三子像素的开启状态及关闭状态分别与所述红色发光核心、所述绿色发光核心、所述蓝色发光核心的开启状态及关闭状态相对应。
  17. 如权利要求8所述的显示装置的驱动方法，其中，若所述纯色画面显示的颜色为红色、绿色、蓝色之一的颜色，通过所述控制单元，控制所述红色发光核心、所述绿色发光核心及所述蓝色发光核心之一的核心对应开启，其他发光核心关闭，对应核心的子像素及第四子像素打开，以透出并形成所述纯色画面。
  18. 如权利要求8所述的显示装置的驱动方法，其中，若所述纯色画面显示的颜色为红色、绿色、蓝色中至少其二混合形成的颜色，通过所述控制单元，控制所述红色发光核心、所述绿色发光核心及所述蓝色发光核心中对应的至少其二的发光核心开启，对应核心的子像素及第四子像素打开，以透出并形成所述纯色画面。
  19. 如权利要求8所述的显示装置的驱动方法，其中，若待显示画面为彩色画面，通过所述控制单元，控制所述红色发光核心、所述绿色发光核心及所述蓝色发光核心共同开启，以混合发光发出白光，对应核心的子像素及第四子像素打开。
  20. 一种显示装置，包括：
    一显示面板，包括多个像素，所述像素包括第一子像素、第二子像素、第三子像素及第四子像素；
    一背光模块，所述背光模块与所述显示面板相对配置；
    一驱动模块，包括：
    一处理单元，用以分析待显示画面的数据；
    一检测单元，用以检测并判断所述待显示画面为纯色画面或彩色画面；
    一控制单元，用以控制所述多个发光核心的发光状态，以发出所述待显示画面所需的光线；其中，所述背光模块包括一光源，所述光源具有多个发光核心，包括第一发光核心、第二发光核心及第三发光核心；
    其中，所述第一发光核心为红色发光二极管，所述第二发光核心为绿色发光二极管，所述第三发光核心为蓝色发光二极管；
    其中，所述控制单元，控制所述红色发光二极管，所述绿色发光二极管及所述蓝色发光二极管共同开启或单独开启。
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CN113345367A (zh) * 2020-03-03 2021-09-03 群创光电股份有限公司 显示装置及其驱动方法
CN113156701A (zh) * 2021-03-09 2021-07-23 睿合科技有限公司 一种基于直下式背光的高亮度和高色域方法及驱动方法
CN116149099B (zh) * 2023-04-20 2023-08-08 惠科股份有限公司 背光模组及显示装置

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