CN111312169A - Sub-pixel rendering system and method capable of reducing power consumption of display panel - Google Patents

Sub-pixel rendering system and method capable of reducing power consumption of display panel Download PDF

Info

Publication number
CN111312169A
CN111312169A CN201910065120.2A CN201910065120A CN111312169A CN 111312169 A CN111312169 A CN 111312169A CN 201910065120 A CN201910065120 A CN 201910065120A CN 111312169 A CN111312169 A CN 111312169A
Authority
CN
China
Prior art keywords
image data
sub
mode
pixel rendering
rgb
Prior art date
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.)
Pending
Application number
CN201910065120.2A
Other languages
Chinese (zh)
Inventor
马奔
贾晨
王自强
张春
权磊
尹勇生
王志华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Research Institute Tsinghua University
Original Assignee
Shenzhen Research Institute Tsinghua University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Research Institute Tsinghua University filed Critical Shenzhen Research Institute Tsinghua University
Priority to CN201910065120.2A priority Critical patent/CN111312169A/en
Publication of CN111312169A publication Critical patent/CN111312169A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—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
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving

Landscapes

  • Engineering & Computer Science (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)
  • Controls And Circuits For Display Device (AREA)

Abstract

The invention discloses a sub-pixel rendering system and a method thereof capable of reducing power consumption of a display panel, wherein the system comprises: the device comprises a sub-pixel rendering unit, a brightness adjusting unit and a storage unit; the sub-pixel rendering unit processes the image data arranged by the standard RGB by using a sub-pixel rendering method to obtain the image data arranged by the non-standard RGB; the brightness adjusting unit is used for adjusting brightness lines and converting color modes to obtain image data of an RGB mode; the storage unit stores image data in an RGB mode and transmits the image data to an external display driving circuit in time series. The invention can improve the problem of overhigh power consumption caused by over-bright display of the panel while performing the sub-pixel rendering processing, thereby reducing the power consumption of the display panel during the sub-pixel rendering processing.

Description

Sub-pixel rendering system and method capable of reducing power consumption of display panel
Technical Field
The invention relates to the technical field of image processing and display, in particular to a sub-pixel rendering system and a method thereof capable of selectively reducing power consumption of a display panel.
Technical Field
Displays are used in a wide variety of applications, and display devices are found on electronic devices used in human daily life. Conventional liquid crystal displays and organic light emitting diode displays are composed of a two-dimensional array of pixels. Wherein each pixel comprises sub-pixels arranged in an order. The colors of the sub-pixels include red (R), green (G), blue (B), and the like. The sub-pixel colors of each pixel are mixed to display the color of the pixel, thereby displaying a color image on the display device.
In the display field of today, the arrangement of sub-pixels of a display panel has been changed. Taking the AMOLED panel as an example, the sub-pixel arrangement order of the display panel is no longer the conventional R, G, B order. Common sub-pixel arrangements include Pentile type and Delta type. Some display manufacturers have display screens with proprietary subpixel arrangement sequences. In such non-conventional RGB display panels, there are various sub-pixel arrangements, which require the research of conversion algorithms from RGB to other pixel structures. A new pixel arrangement requires a sub-pixel rendering method.
The subpixel rendering technique is generally applied to a driving IC of a non-conventional subpixel arrangement display panel. Due to the reduced number of sub-pixels, the sub-pixels of the panel are relatively large, which presents a significant challenge to the display lifetime and display power consumption of the panel.
Disclosure of Invention
The invention provides a sub-pixel rendering system and a method thereof for solving the problems in the prior art, which can reduce the power consumption of a display panel, so that the problem of overhigh power consumption caused by over-bright display of the panel can be improved while the sub-pixel rendering is carried out, and the power consumption of the display panel is reduced during the sub-pixel rendering.
The invention adopts the following technical scheme for solving the technical problems:
the invention relates to a sub-pixel rendering system capable of reducing power consumption of a display panel, which is characterized by comprising the following components: the device comprises a sub-pixel rendering unit, a brightness adjusting unit and a storage unit;
the sub-pixel rendering unit acquires image data in standard RGB arrangement and processes the image data by using a sub-pixel rendering method to obtain image data in non-standard RGB arrangement;
the brightness adjusting unit performs color mode conversion on the image data arranged in the non-standard RGB mode to obtain image data in a YUV mode or a Lab mode, performs brightness line adjustment on the image data in the YUV mode or the Lab mode to obtain adjusted image data, and finally performs color mode conversion on the adjusted image data to restore the image data in the RGB mode;
the storage unit stores the image data in the RGB mode and sends the image data to an external display driving circuit according to time sequence.
The invention relates to a sub-pixel rendering method capable of reducing power consumption of a display panel, which is characterized by comprising the following steps of:
step 1, processing image data arranged by standard RGB by using a sub-pixel rendering method to obtain image data arranged by non-standard RGB;
step 2, carrying out color mode conversion on the image data arranged in the non-standard RGB mode to obtain image data in a YUV mode or a Lab mode;
step 3, adjusting the brightness of the image data in the YUV mode or the Lab mode to obtain adjusted image data;
step 4, performing color mode conversion processing on the adjusted image data to restore the image data into RGB mode image data;
and 5, storing the image data of the RGB mode, and sending the image data to an external display driving circuit according to a time sequence.
Compared with the prior art, the invention has the beneficial effects and advantages that:
1. the invention realizes the real-time performance of sub-pixel rendering and power consumption adjustment through the sub-pixel rendering unit and the brightness adjusting unit, and adopts the storage device to regulate and control the time sequence of data transmission, thereby improving the problem of overhigh display power consumption caused by overhigh display panel, and reducing the area and complexity of a driving IC by integrating the display panel in a sub-pixel rendering system.
2. The power consumption adjusting mode adopted by the invention is selectable, and the flexibility of the whole system is reserved. When the power consumption adjustment is selected, the display brightness is reduced mainly by switching the color mode. This way, the brightness of the image can be maximally ensured to be reduced without distortion.
Drawings
FIG. 1 is a diagram of a standard RGB arrangement in the prior art;
FIG. 2 is a diagram of a non-standard RGB arrangement in the prior art;
FIG. 3 is a flow chart of the operation of the system of the present invention;
FIG. 4 is a schematic diagram of the system of the present invention;
FIG. 5 is a schematic diagram of color mode conversion according to the present invention.
Detailed Description
Referring to fig. 1, fig. 1 is a schematic view of a sub-pixel arrangement structure of a standard RGB display panel. In the standard RGB sub-pixel arrangement structure, a red sub-pixel (R), a green sub-pixel (G), and a blue sub-pixel (B) are sequentially arranged, and the sub-pixel arrangement order of each row is the same.
Referring to fig. 2, fig. 2 is a schematic diagram of a display panel adopting a Delta-type sub-pixel arrangement structure. In the Delta-type sub-pixel arrangement structure, a red sub-pixel (R), a green sub-pixel (G), and a blue sub-pixel (B) are sequentially arranged in a specific order. Note that this embodiment is only an example in which a display panel having a Delta-type subpixel arrangement structure is used as a non-standard RGB arrangement display panel. The non-standard RGB arrangement display panel also includes a Pentile type arrangement and the like.
Referring to fig. 3, fig. 3 is a working flow chart of the system of the present invention, and a sub-pixel rendering method for reducing power consumption of a display panel is performed according to the following steps:
step 1, processing image data arranged by standard RGB by using a sub-pixel rendering method to obtain image data arranged by non-standard RGB; the image data of the whole system is obtained from an MIPI interface or an upper-level SRAM storage device. And then the sub-pixel rendering unit receives the image data sent by the data interface or the upper-level storage unit and carries out sub-pixel rendering processing. The data after the sub-pixel rendering process is RGB color mode image data.
Step 2: and if the panel power consumption needs to be reduced, the brightness adjusting unit is started to convert the image color mode. Carrying out color mode conversion on image data arranged in a non-standard RGB mode to obtain image data in a YUV mode or a Lab mode;
and step 3: adjusting the brightness of the image data in the YUV mode or the Lab mode in the mode to obtain adjusted image data; therefore, the brightness of the panel during display is reduced, and the purpose of reducing the display power consumption is achieved. If the power consumption adjusting function does not need to be started, the step 5 is entered to directly send the data to the storage unit.
And 4, step 4: and performing color mode conversion processing on the adjusted image data, recovering the image data into RGB mode image data and sending the image data into a storage unit.
And 5, storing the image data in the RGB mode, and sending the image data to an external display driving circuit according to a time sequence.
According to the embodiment of the invention, the power consumption of the display panel during the sub-pixel rendering process can be reduced.
Referring to fig. 4, fig. 4 is a schematic structural diagram of the system of the present invention. As shown in the figure, the dashed line frame 1 is a sub-pixel rendering system capable of reducing power consumption of a display panel according to the present invention, and includes: the device comprises a sub-pixel rendering unit, a brightness adjusting unit and a storage unit; the module 11 is a sub-pixel rendering unit. The method comprises the steps that a sub-pixel rendering unit obtains image data in standard RGB arrangement and processes the image data by using a sub-pixel rendering method to obtain image data in non-standard RGB arrangement; the specific rendering principle is as follows: rendering the image data of the standard RGB arrangement shown in fig. 1 into the image data of the non-standard RGB arrangement shown in fig. 2, while reducing the number of sub-pixels while keeping the image undistorted. The non-standard RGB arrangement comprises Pentile type and Delta type other arrangement structures different from the RGB standard arrangement.
The module 12 is a brightness adjustment unit. When the power consumption needs to be reduced, the module is started. The brightness adjusting unit performs color mode conversion on image data arranged in a non-standard RGB mode to obtain image data in a YUV mode or a Lab mode, performs brightness line adjustment on the image data in the YUV mode or the Lab mode to obtain adjusted image data, and finally performs color mode conversion on the adjusted image data to restore the image data in the RGB mode.
The module 13 is a memory unit. The storage unit stores image data in an RGB mode and transmits the image data to an external display driving circuit in time series. When the brightness adjustment is not started, the storage unit directly receives the image data sent by the sub-pixel rendering unit.
Referring to fig. 5, fig. 5 is a schematic diagram of color mode conversion. As shown in the figure, block 2 is the received image data of RGB color mode. The module 22 is a color mode conversion module, and the specific conversion mode is as follows: the image data of the RGB color mode is converted into a YUV color mode or a Lab color mode. In the YUV mode, Y is the brightness. In Lab mode, L is the brightness. The module 23 is a brightness adjustment module. The essence of the power consumption adjustment is to reduce the power consumption of the display panel by reducing the display brightness of the image after the color mode is switched. The function of block 24 is the reverse of that of block 22, i.e., converting image data in other color modes to image data in standard RGB color modes.

Claims (2)

1. A sub-pixel rendering system that reduces power consumption of a display panel, comprising: the device comprises a sub-pixel rendering unit, a brightness adjusting unit and a storage unit;
the sub-pixel rendering unit acquires image data in standard RGB arrangement and processes the image data by using a sub-pixel rendering method to obtain image data in non-standard RGB arrangement;
the brightness adjusting unit performs color mode conversion on the image data arranged in the non-standard RGB mode to obtain image data in a YUV mode or a Lab mode, performs brightness line adjustment on the image data in the YUV mode or the Lab mode to obtain adjusted image data, and finally performs color mode conversion on the adjusted image data to restore the image data in the RGB mode;
the storage unit stores the image data in the RGB mode and sends the image data to an external display driving circuit according to time sequence.
2. A sub-pixel rendering method capable of reducing power consumption of a display panel is characterized by comprising the following steps:
step 1, processing image data arranged by standard RGB by using a sub-pixel rendering method to obtain image data arranged by non-standard RGB;
step 2, carrying out color mode conversion on the image data arranged in the non-standard RGB mode to obtain image data in a YUV mode or a Lab mode;
step 3, adjusting the brightness of the image data in the YUV mode or the Lab mode to obtain adjusted image data;
step 4, performing color mode conversion processing on the adjusted image data to restore the image data into RGB mode image data;
and 5, storing the image data of the RGB mode, and sending the image data to an external display driving circuit according to a time sequence.
CN201910065120.2A 2019-01-23 2019-01-23 Sub-pixel rendering system and method capable of reducing power consumption of display panel Pending CN111312169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910065120.2A CN111312169A (en) 2019-01-23 2019-01-23 Sub-pixel rendering system and method capable of reducing power consumption of display panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910065120.2A CN111312169A (en) 2019-01-23 2019-01-23 Sub-pixel rendering system and method capable of reducing power consumption of display panel

Publications (1)

Publication Number Publication Date
CN111312169A true CN111312169A (en) 2020-06-19

Family

ID=71157985

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910065120.2A Pending CN111312169A (en) 2019-01-23 2019-01-23 Sub-pixel rendering system and method capable of reducing power consumption of display panel

Country Status (1)

Country Link
CN (1) CN111312169A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8315473B1 (en) * 2008-08-22 2012-11-20 Adobe Systems Incorporated Variably fast and continuous bilateral approximation filtering using histogram manipulations
CN104464684A (en) * 2014-10-23 2015-03-25 友达光电股份有限公司 Method for rendering picture of display
CN106875923A (en) * 2017-03-22 2017-06-20 武汉华星光电技术有限公司 A kind of pixel rendering method and pixel rendering device
CN107277419A (en) * 2017-07-28 2017-10-20 京东方科技集团股份有限公司 A kind of display device and its display methods
CN107331341A (en) * 2017-08-10 2017-11-07 武汉华星光电技术有限公司 The rendering intent and system of one sub-pixel
CN107563984A (en) * 2017-10-30 2018-01-09 清华大学深圳研究生院 A kind of image enchancing method and computer-readable recording medium
CN107561704A (en) * 2016-06-30 2018-01-09 三星显示有限公司 Head-mounted display apparatus and the method for driving the head-mounted display apparatus
CN108428435A (en) * 2018-03-29 2018-08-21 合肥工业大学 A kind of verification display methods that Delta types arrangement sub-pixel renders
CN108604436A (en) * 2016-01-13 2018-09-28 深圳云英谷科技有限公司 Device and method for pixel data rearrangement
CN108831409A (en) * 2018-04-23 2018-11-16 遵义师范学院 A kind of image display driving method

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8315473B1 (en) * 2008-08-22 2012-11-20 Adobe Systems Incorporated Variably fast and continuous bilateral approximation filtering using histogram manipulations
CN104464684A (en) * 2014-10-23 2015-03-25 友达光电股份有限公司 Method for rendering picture of display
CN108604436A (en) * 2016-01-13 2018-09-28 深圳云英谷科技有限公司 Device and method for pixel data rearrangement
CN107561704A (en) * 2016-06-30 2018-01-09 三星显示有限公司 Head-mounted display apparatus and the method for driving the head-mounted display apparatus
CN106875923A (en) * 2017-03-22 2017-06-20 武汉华星光电技术有限公司 A kind of pixel rendering method and pixel rendering device
CN107277419A (en) * 2017-07-28 2017-10-20 京东方科技集团股份有限公司 A kind of display device and its display methods
CN107331341A (en) * 2017-08-10 2017-11-07 武汉华星光电技术有限公司 The rendering intent and system of one sub-pixel
CN107563984A (en) * 2017-10-30 2018-01-09 清华大学深圳研究生院 A kind of image enchancing method and computer-readable recording medium
CN108428435A (en) * 2018-03-29 2018-08-21 合肥工业大学 A kind of verification display methods that Delta types arrangement sub-pixel renders
CN108831409A (en) * 2018-04-23 2018-11-16 遵义师范学院 A kind of image display driving method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
黄成强等: "基于权重因子的ＲＧＢ－ＲＧＢＧ像素结构转换算法及其ＦＰＧＡ实现", 《液晶与显示》 *

Similar Documents

Publication Publication Date Title
CN101984487B (en) Method for driving active matrix organic light-emitting diode (LED) display panel
CN1180294C (en) Field-sequential liquid crystal display device and driving method
CN103839515B (en) Time schedule controller and driving method thereof and use its display device
US8605127B2 (en) Method for driving active matrix organic light emitting diode display panel
US8976102B2 (en) Timing controller utilized in display device and method thereof
WO2016169194A1 (en) Display panel, driving method and display device
CN1905621A (en) Video signal processor, display device, and method of driving the same
CN108962167B (en) Data processing method and device, driving method, display panel and storage medium
US20210343239A1 (en) Display driving method of integrated circuit, integrated circuit, display screen and display apparatus
TWI664620B (en) Display control method and display system
CN103794179B (en) A kind of OLED driving method and device
CN107886896B (en) Three colors and four color pixel display panel compatible systems and method
WO2022033110A1 (en) Liquid crystal display and driving compensation method therefor and driving compensation apparatus thereof
US10559244B2 (en) Electronic apparatus, display driver and method for generating display data of display panel
CN110599962B (en) Rendering method of Delta type sub-pixel display panel with different color sequences
EP3364402A1 (en) Oled pixel structure, and driving method, driving circuit, and display apparatus thereof
CN113362776A (en) Field sequence display device, control method and display equipment
CN104575422A (en) Liquid crystal display panel and driving method thereof
US10726815B2 (en) Image processing apparatus, display panel and display apparatus
CN106531101A (en) Display panel and display device having display panel
US20090174730A1 (en) Data driving apparatus and method thereof
WO2004090579A3 (en) Color image display apparatus
CN111312169A (en) Sub-pixel rendering system and method capable of reducing power consumption of display panel
CN105405430A (en) Display panel, display and method for increasing display brightness of four-fundamental color pure-color image
US8570254B2 (en) Display apparatus and imaging system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20200619

RJ01 Rejection of invention patent application after publication