WO2012090955A1 - Dispositif d'affichage, dispositif récepteur de télévision et procédé de commande de dispositif d'affichage - Google Patents

Dispositif d'affichage, dispositif récepteur de télévision et procédé de commande de dispositif d'affichage Download PDF

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Publication number
WO2012090955A1
WO2012090955A1 PCT/JP2011/080113 JP2011080113W WO2012090955A1 WO 2012090955 A1 WO2012090955 A1 WO 2012090955A1 JP 2011080113 W JP2011080113 W JP 2011080113W WO 2012090955 A1 WO2012090955 A1 WO 2012090955A1
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WIPO (PCT)
Prior art keywords
display device
area
signal lines
region
scanning
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PCT/JP2011/080113
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English (en)
Japanese (ja)
Inventor
亜希子 宮崎
藤原　晃史
知洋 木村
敏晴 楠本
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シャープ株式会社
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Publication of WO2012090955A1 publication Critical patent/WO2012090955A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • 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
    • G09G3/3666—Control of matrices with row and column drivers using an active matrix with the matrix divided into sections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133391—Constructional arrangement for sub-divided displays
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1431—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display using a single graphics controller
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0205—Simultaneous scanning of several lines in flat panels
    • G09G2310/021—Double addressing, i.e. scanning two or more lines, e.g. lines 2 and 3; 4 and 5, at a time in a first field, followed by scanning two or more lines in another combination, e.g. lines 1 and 2; 3 and 4, in a second field
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0213—Addressing of scan or signal lines controlling the sequence of the scanning lines with respect to the patterns to be displayed, e.g. to save power
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/04—Display device controller operating with a plurality of display units
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/10—Display system comprising arrangements, such as a coprocessor, specific for motion video images
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory

Definitions

  • the present invention relates to a display device in which a display unit is divided into a plurality of regions.
  • Patent Document 1 discloses an instrument panel that displays a navigation video on the left side of the display unit and displays a speedometer video on the right side of the display unit.
  • Patent No. 4302964 Japanese Patent Gazette "Patent No. 4302964"
  • An object of the present invention is to propose a display device that suppresses power consumption while maintaining display quality of a main video.
  • the display device includes a display unit including a first area for displaying a first video and a second area for displaying a second video, and scanning the scanning signal lines by n lines in the first area (n Is an integer of 2 or more), in the second region, the scanning signal lines are scanned m by m (m is a natural number smaller than n).
  • the present invention it is possible to realize a display device that suppresses power consumption while maintaining the display quality of the main video.
  • FIG. 3 is a schematic diagram illustrating a display example of the television receiver according to the first embodiment.
  • FIG. 3 is a schematic diagram illustrating a part (around the liquid crystal panel) of the television receiver according to the first embodiment. It is a schematic diagram which shows the drive method when performing the display of FIG. 3 with the structure of FIG. It is a schematic diagram explaining the drive method of the main area of FIG. It is a schematic diagram explaining the drive method of the subarea of FIG.
  • FIG. 6 is a schematic diagram illustrating another display example of the television receiver according to the first embodiment.
  • FIG. 7 is a schematic diagram illustrating a driving method when the display of FIG. 6 is performed with the configuration of FIG. 1.
  • 1 is a schematic diagram illustrating a configuration example of a television receiver according to Embodiment 1.
  • FIG. 3 is a schematic diagram illustrating a part of the television receiver of the first embodiment (main area pixels and sub area pixels).
  • FIG. 3 is a schematic diagram illustrating a configuration example of a part of the television receiver according to the first embodiment (around the liquid crystal panel driving circuit and the backlight system). It is a schematic diagram which shows the modification of FIG.
  • FIG. 13 is a schematic diagram illustrating a driving method when the display of FIG. 6 is performed with the configuration of FIG. 11.
  • FIG. 6 is a schematic diagram illustrating a part (around the liquid crystal panel) of the television receiver according to the second embodiment. It is a schematic diagram explaining the drive method of the structure of FIG. It is a schematic diagram which shows the drive method of the main area when performing the display of FIG. 3 with the structure of FIG. It is a schematic diagram which shows the drive method of a subarea when performing the display of FIG. 3 with the structure of FIG. It is a schematic diagram which shows the drive method of the main area and subarea when performing the display of FIG. 6 with the structure
  • the aspect ratio indicates horizontal size: vertical size
  • the resolution indicates horizontal effective total number of pixels ⁇ vertical effective total number of pixels.
  • FIG. 1 is a schematic diagram showing a display unit of the present television receiver.
  • the display unit is a horizontally long rectangle, and the aspect ratio is 21: 9.
  • the main area MAR is also a horizontally long rectangle, the resolution is 1920 ⁇ 1080 or more, and the aspect ratio is 16: 9.
  • the sub-area SAR is a vertically long rectangle (aspect ratio is 5: 9) and is arranged adjacent to the main area MAR in the horizontal direction.
  • the user interface video (sub video) is displayed in the sub area SAR while displaying the HDTV video (main video) having a resolution of 1920 ⁇ 1080 and an aspect ratio of 16: 9 in the main area MAR without reducing the resolution. ) Is displayed.
  • FIG. 2 is a configuration example around the liquid crystal panel for realizing the display unit of FIG.
  • one data signal line is provided on the upstream side in the scanning direction of one pixel column (hereinafter, upstream), and the downstream side in the scanning direction of the pixel column.
  • one data signal line that is, two data signal lines are provided for one pixel column
  • a main gate driver GX a first main source driver SX that drives a data signal line upstream of the main area MAR, a second main gate driver GY that drives a scanning signal line downstream of the main area MAR, And a second main source driver SY that drives a data signal line downstream of the area MAR.
  • one data signal line is provided in a portion upstream of the scanning direction of one pixel column (hereinafter, upstream portion), and the scanning direction of the pixel column is set.
  • One data signal line is provided in the downstream part (hereinafter, downstream part) (that is, two data signal lines are provided in one pixel column), and the scanning signal line in the upstream part of the subarea MAR is driven.
  • a first sub-gate driver gx a first sub-source driver sx that drives a data signal line upstream of the sub-area MAR, a second sub-gate driver gy that drives a scanning signal line downstream of the sub-area MAR, And a second sub-source driver sy for driving the data signal line in the downstream part of the area MAR.
  • the main area MAR has an upstream portion.
  • one scanning signal line is scanned in the downstream portion (two scanning signal lines are scanned two by two).
  • the sub-area SAR all the upstream scanning signal lines are sequentially scanned (one by one), and then all the downstream scanning signal lines are sequentially scanned (the scanning signal lines are scanned one by one).
  • the scanning signal line G1 and the scanning signal line G541 are simultaneously selected in the first horizontal scanning period H1 of the nth vertical scanning period Vn, and the scanning signal line G1 is selected.
  • the first data of the nth frame is written in the pixel row corresponding to (horizontal one row), and the 541th data of the (n ⁇ 1) th frame is written in the pixel row corresponding to the scanning signal line G541 (horizontal one row).
  • the scanning signal line G2 and the scanning signal line G542 are simultaneously selected, and n is applied to the pixel row (one horizontal row) corresponding to the scanning signal line G2.
  • the second data of the frame is written, the 542nd data of the (n ⁇ 1) th frame is written to the pixel row (one horizontal row) corresponding to the scanning signal line G542, and the second data of the nth vertical scanning period Vn is written.
  • the scanning signal line G3 and the scanning signal line G543 are simultaneously selected, and the third data of the n-th frame is written into the pixel row (one horizontal row) corresponding to the scanning signal line G3, and scanning is performed.
  • the 543rd data of the (n-1) th frame is written in the pixel row (one horizontal row) corresponding to the signal line G543, and the scan signal line G540 and the scan are scanned in the 540th horizontal scan period H540 of the nth vertical scan period Vn.
  • the signal line G1080 is selected at the same time, and the 540th data of the nth frame is written to the pixel row (one horizontal row) corresponding to the scanning signal line G540, and the pixel row (one horizontal row) corresponding to the scanning signal line G1080. ) Is written the 1080th data of the (n-1) th frame.
  • the scanning signal line G1 is selected in the first horizontal scanning period H1 of the nth vertical scanning period Vn, and the pixel row corresponding to the scanning signal line G1.
  • the first data of the nth frame is written in (one horizontal row)
  • the scanning signal line G2 is selected in the second horizontal scanning period H2 of the nth vertical scanning period Vn, and the pixel corresponding to the scanning signal line G2
  • the second data of the nth frame is written in a row (one horizontal row)
  • the scanning signal line G3 is selected in the third horizontal scanning period H3 of the nth vertical scanning period Vn, and corresponds to the scanning signal line G3.
  • the third data of the nth frame is written in the pixel row (one horizontal row), and the scanning signal line G1080 is selected and corresponds to the scanning signal line G1080 in the 1080th horizontal scanning period H1080 of the nth vertical scanning period Vn.
  • Pixel row n th frame 1080 th data is written to one horizontal line).
  • the main area MAR and the sub area SAR have the same driving frequency (reciprocal of the horizontal scanning period), and one vertical scanning period of the main area MAR is set to 1 ⁇ 2 of one vertical scanning period of the sub area SAR. be able to.
  • the drive frequency of the main area MAR reciprocal of the horizontal scanning period
  • one vertical scanning period of the main area MAR is set to the sub-area SAR. It can be set to 1/4 of one vertical scanning period.
  • the driving frequency of the sub-area SAR can be set to 1 Hz (for a watch, it may be about 30 Hz).
  • the maximum amplitude of the data signal output from the first sub source driver sx and the second sub source driver sy is greater than the maximum amplitude of the data signal output from the first main source driver SX and the second main source driver SY. Can also be reduced. Thereby, power consumption can be further suppressed.
  • FIG. 6 when the display of FIG. 6 is performed with the configuration of FIG. 2 (when the same image such as a cinema size is displayed in the main area MAR and the sub-area SAR), as shown in FIG.
  • one scanning signal line is scanned in the downstream portion (two scanning signal lines are scanned at a time).
  • one scanning signal line is scanned in the downstream portion in synchronization with the scanning of one scanning signal line in the upstream portion (two scanning signal lines are scanned two by two). .
  • FIG. 8 is a schematic diagram showing a configuration of the television receiver 100
  • FIG. 9 is a schematic diagram showing a pixel structure of a main area and a sub area of the liquid crystal panel of FIG. 8,
  • FIG. It is a schematic diagram which shows the structural example of some (around a liquid crystal panel drive circuit and a backlight system).
  • the television receiver 100 includes a liquid crystal panel (LCP) constituting a display unit, a liquid crystal panel drive circuit, a display control circuit, a user input processing unit, a main area control unit, A sub-area processing unit, a backlight system, a backlight control unit, a communication interface, a tuner, and a power supply system are provided.
  • LCP liquid crystal panel
  • the main area MAR is provided with 1080 or more scanning signal lines and 1920 ⁇ 4 (R, G, B, Y) or more data signal lines. Further, as shown in FIG. 9, one pixel in the main area MAR is composed of four sub-pixels (red, green, blue, and yellow) arranged horizontally, and one pixel in the sub-area SAR is four sub-pixels ( Red, green, blue, white). As described above, when the main area MAR is RGBY4 colors and the subarea SAR is RGBW4 colors, the power consumption reduction effect when displaying different images in the main area MAR and the subarea SAR is great. However, the pixel configuration is not limited to this. The main area MAR and the sub area SAR may have different configurations, or the main area MAR and the sub area SAR may have the same pixel configuration.
  • the user input processing unit processes the user input and outputs the processing result to the main area control unit and the sub area control unit.
  • a touch (proximity) sensor is provided in the sub-area SAR of the liquid crystal panel LCP
  • the touch (proximity) sensor is connected to the user input processing unit.
  • the main area control unit outputs video data for the main area corresponding to the processing result of the user input processing unit to the display control circuit and the backlight control circuit.
  • the sub-area control unit outputs video data for the sub-area according to the processing result of the user input processing unit to the display control circuit and the backlight control circuit.
  • the display control circuit receives the video data for the main area and the video data for the sub area, and controls the liquid crystal panel drive circuit.
  • the backlight control circuit receives the video data for the main area and the video data for the sub area and controls the backlight system.
  • the main area control unit that has received the processing result from the user input processing unit sends the corresponding HDTV video via the tuner.
  • the data is fetched and output to the display control circuit and the backlight control circuit.
  • the main area control unit that receives the processing result from the user input processing unit performs communication.
  • the HDTV video data recorded on the recording medium is taken in via the interface and output to the display control circuit and the backlight control circuit.
  • the main area control unit that has received the processing result from the user input processing unit transmits the result on the network via the communication interface.
  • HDTV video data is taken in and output to the display control circuit and the backlight control circuit.
  • the main area control unit that receives the processing result from the user input processing unit transmits the video camera via the communication interface.
  • HDTV video data is taken in and output to the display control circuit and the backlight control circuit.
  • the subarea control unit that receives the processing result from the user input processing unit transmits the video of Twitter on the network via the communication interface.
  • the data is fetched and output to the display control circuit and the backlight control circuit.
  • the subarea control unit that receives the processing result from the user input processing unit transmits the TVphone line from the TV phone line via the communication interface.
  • the video data of the telephone is taken in and output to the display control circuit and the backlight control circuit.
  • the subarea control unit that receives the processing result from the user input processing unit receives the corresponding HDTV video via the tuner.
  • the data is fetched and output to the display control circuit and the backlight control circuit.
  • the backlight control circuit controls the backlight system as shown in FIG.
  • the backlight system includes a part MBL corresponding to the main area MAR and a part SBL corresponding to the sub-area SAR, and the two parts are driven independently. More specifically, LED circuits (plural) including LEDs of a plurality of colors are arranged in a matrix in the part MBL corresponding to the main area MAR, and the brightness of each LED circuit is individually controlled according to video data. (2D luminance control). Further, in the portion SBL corresponding to the sub-area SAR, LED circuits (plurality) including LEDs of a plurality of colors are arranged in one row (vertical) or in a matrix form, and the brightness of all the LED circuits is uniformly controlled (0D type). Brightness control).
  • the backlight control circuit receives the processing result of the user input processing unit, and controls the two parts (MBL, SBL) of the backlight system according to the control signal from the main area control unit and the sub area control unit. Turn the power on and off individually. That is, the part MBL corresponding to the main area MAR is connected to the power supply circuit via SW0, and the part SBL3 corresponding to the subarea SAR is connected to the power supply circuit via SW1. For example, when only the main area MAR is turned on, SW0 is turned on and SW1 is turned off. When only the sub area SAR is turned on, SW1 is turned on and SW0 is turned off.
  • the first main gate driver GX, the first main source driver SX, and the second main gate are connected to the power supply circuit via SW0, and the first sub-gate driver gx and first sub-source driver sx, and the second sub-gate driver gy and second sub-source driver sy are connected via SW1. Connected to the power circuit.
  • the above description is based on the arrangement of the LED circuit directly under the panel, but the edge arrangement of the LED circuit may be used, or the arrangement of the cold cathode fluorescent lamp (CCFL) may be directly below. Further, a direct type arrangement of organic EL (full surface solid illumination) or a direct type arrangement of a hot cathode fluorescent lamp (HCFL) may be used.
  • the data signal line of the sub-area SAR is divided between the upstream part and the downstream part. However, as shown in FIG. 11, the data signal line of the sub-area SAR is shared between the upstream part and the downstream part. It doesn't matter.
  • the display of FIG. 1 is performed with the configuration of FIG. 12 (the main video is displayed in the main area MAR and the sub video is displayed in the sub area SAR), in the main area MAR, one scanning signal line is scanned upstream. In synchronization with this, one scanning signal line is scanned downstream (two scanning signal lines are scanned at a time).
  • the sub-area SAR all the upstream scanning signal lines are sequentially scanned (one by one), and then all the downstream scanning signal lines are sequentially scanned (the scanning signal lines are scanned one by one). . Further, when the display of FIG. 6 is performed with the configuration of FIG. 11 (the same image such as a cinema size is displayed in the main area MAR and the sub area SAR), as shown in FIG. 12, the main area MAR and the sub area SAR are respectively displayed. After all the upstream scanning signal lines are sequentially scanned (one by one), all the downstream scanning signal lines are sequentially scanned (scanning signal lines are scanned one by one).
  • one data signal line is provided upstream of one pixel column and one data signal line is provided downstream of the pixel column. It is not limited to.
  • two data signal lines are provided upstream of one pixel column, and two data signal lines are provided downstream of the pixel column (that is, It is also possible to provide four data signal lines in one pixel column).
  • the display of FIG. 1 is performed with the configuration of FIG. 13 (the main video is displayed in the main area MAR and the sub video is displayed in the sub area SAR), as shown in FIGS.
  • the two scanning signal lines are scanned in the downstream portion (all four data signal lines corresponding to one pixel column are simultaneously turned on, and the scanning signal 4 lines are scanned).
  • the sub-area SAR as shown in FIG. 16, after every other scanning signal line in the upstream part is interlaced and scanned, every other scanning signal line in the downstream part is interlaced and scanned (1 Only one of the four data signal lines corresponding to the pixel column is turned on, and the scanning signal lines are scanned one by one).
  • FIG. 6 When the display of FIG. 6 is performed with the configuration of FIG. 13 (the same image such as a cinema size is displayed in the main area MAR and the sub-area SAR), as shown in FIG.
  • two scanning signal lines are scanned in the downstream portion (all four data signal lines corresponding to one pixel column are simultaneously turned on, and four scanning signal lines are provided. Scanned one by one).
  • the sub-area SAR the two scanning signal lines are scanned in the downstream portion in synchronization with the scanning of the two scanning signal lines in the upstream portion (four data signals corresponding to one pixel column). All the lines are turned on simultaneously and four scanning signal lines are scanned).
  • the display device includes a display unit including a first area for displaying a first video and a second area for displaying a second video, and scanning the scanning signal lines by n lines in the first area (n Is an integer of 2 or more), in the second region, the scanning signal lines are scanned m by m (m is a natural number smaller than n).
  • the first region when the scanning direction is the column direction, the first region may have a configuration in which n data signal lines are provided for one pixel column.
  • n is an even number
  • the first region is composed of an upstream region in the scanning direction and a downstream region in the scanning direction
  • half of the n data signal lines are arranged in the upstream region in the scanning direction.
  • the remaining half of the n data signal lines can be arranged in the downstream area in the scanning direction.
  • the present display device may be configured such that n data signal lines are provided for one pixel column even in the second region.
  • the present display device may be configured such that m data signal lines are provided for one pixel column in the second region.
  • the display device may be configured to scan n scanning signal lines for each of the first and second regions when the same image is displayed in the first and second regions.
  • This display device may be configured to scan m scanning signal lines for each of the first and second regions when the same image is displayed in the first and second regions.
  • n 2 or 4.
  • the first region may be a rectangle, and the number of pixels arranged on the long side may be 1920 or more.
  • the first region may be a rectangle, and the number of pixels arranged on the short side may be 1080 or more.
  • the main area may be a rectangle, and the size of the long side: the size of the short side may be 16: 9.
  • the display unit may be a rectangle, and a configuration in which a is a positive number and the size of the long side: the size of the short side is (16 + a): 9.
  • the first video can be configured to be a video having a resolution higher than that of a high-definition television broadcast (HDTV).
  • HDTV high-definition television broadcast
  • the second video may be a user interface video.
  • the display unit may be constituted by a liquid crystal panel.
  • the maximum amplitude of the data signal supplied to the second region may be smaller than the maximum amplitude of the data signal supplied to the first region.
  • the one horizontal scanning period in the scanning of the second region may be longer than the one horizontal scanning period in the scanning of the first region.
  • the backlight corresponding to the first region and the backlight corresponding to the second region can be driven independently.
  • This television receiver includes the above display device.
  • the present invention is not limited to the above-described embodiments, and those obtained by appropriately modifying the above-described embodiments based on common general technical knowledge and those obtained by combining them are also included in the embodiments of the present invention.
  • This display device is suitable for a television receiver, for example.

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  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

L'invention concerne un dispositif d'affichage comportant une partie d'affichage contenant une première région qui affiche une première image et une deuxième région qui affiche une deuxième image. Dans la première région, les lignes de signal de balayage sont balayées n lignes à la fois (n étant un entier supérieur ou égal à 2). Dans la deuxième région, les lignes de signal de balayage sont balayées m lignes à la fois (m étant un entier naturel inférieur à n). L'invention permet donc de réduire la consommation d'énergie sans incidence sur la qualité d'affichage de l'image principale.
PCT/JP2011/080113 2010-12-28 2011-12-26 Dispositif d'affichage, dispositif récepteur de télévision et procédé de commande de dispositif d'affichage WO2012090955A1 (fr)

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JP2010294111 2010-12-28
JP2010-294111 2010-12-28

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03198026A (ja) * 1989-12-27 1991-08-29 Hitachi Ltd 液晶表示装置、バックライト制御方式および情報処理装置
JPH04165329A (ja) * 1990-10-30 1992-06-11 Toshiba Corp 液晶表示装置の駆動方法
JPH05241127A (ja) * 1992-02-28 1993-09-21 Canon Inc 液晶表示装置
JPH07191630A (ja) * 1993-12-27 1995-07-28 Nec Corp Ｌｃｄマルチシンクモニター方法
JPH08305325A (ja) * 1995-04-27 1996-11-22 Semiconductor Energy Lab Co Ltd 画像表示装置
WO2006098189A1 (fr) * 2005-03-14 2006-09-21 Sharp Kabushiki Kaisha Dispositif d’affichage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03198026A (ja) * 1989-12-27 1991-08-29 Hitachi Ltd 液晶表示装置、バックライト制御方式および情報処理装置
JPH04165329A (ja) * 1990-10-30 1992-06-11 Toshiba Corp 液晶表示装置の駆動方法
JPH05241127A (ja) * 1992-02-28 1993-09-21 Canon Inc 液晶表示装置
JPH07191630A (ja) * 1993-12-27 1995-07-28 Nec Corp Ｌｃｄマルチシンクモニター方法
JPH08305325A (ja) * 1995-04-27 1996-11-22 Semiconductor Energy Lab Co Ltd 画像表示装置
WO2006098189A1 (fr) * 2005-03-14 2006-09-21 Sharp Kabushiki Kaisha Dispositif d’affichage

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