CN106601187A - Display control device, control card, display device and control method thereof - Google Patents

Display control device, control card, display device and control method thereof Download PDF

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Publication number
CN106601187A
CN106601187A CN201710097525.5A CN201710097525A CN106601187A CN 106601187 A CN106601187 A CN 106601187A CN 201710097525 A CN201710097525 A CN 201710097525A CN 106601187 A CN106601187 A CN 106601187A
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CN
China
Prior art keywords
display
signal
frame
output
card
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Granted
Application number
CN201710097525.5A
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Chinese (zh)
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CN106601187B (en
Inventor
唐永生
王勇
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Chipone Technology Beijing Co Ltd
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Chipone Technology Beijing Co Ltd
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Priority to CN201710097525.5A priority Critical patent/CN106601187B/en
Publication of CN106601187A publication Critical patent/CN106601187A/en
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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]

Abstract

The invention discloses a display control device, a control card, a display device and a control method thereof. The display control device comprises a driving module and a control module, wherein the driving module is used for outputting a driving signal and outputting a display completion signal after the outputting of the driving signal for a frame of display image is completed; the control module is used for receiving a frame synchronizing signal and the display completion signal and controlling the driving module to or not to output the driving signal for the next frame of display image according to the frame synchronizing signal and the display completion signal. Thus, the mutual interference of the images between the adjacent frames can be avoided, the images within the frame time interval still can be normally displayed and the display effect can be optimized.

Description

Display control unit, control card, display device and its control method
Technical field
The present invention relates to display technology field, more particularly to a kind of display control unit, control card, display device and its control Method processed.
Background technology
In existing light emitting diode (Light Emitting Diode, LED) display floater control system, LED shows Show that panel is typically spliced by multiple LED boxes, and each LED box is spliced by multiple LED lamp panels.Each LED box is also configured with receiving card, and receiving card passes through winding displacement output image drive signal to LED lamp panel so as to drive LED lamp panel Show.Each LED display panel control system is equipped with sending card, and based on specific host-host protocol, sending card will be input into Video source is sent to receiving card with fixed data form, and the video source of input is more completely shown in LED display surfaces by receiving card On plate.
But due to there is deviation between the clock of clock and sending card on receiving card, in order to avoid the picture between consecutive frame Face interferes, and after former frame shows and completes, a later frame can reserve one section of buffer time before showing, in this period, Occur without picture element signal, be referred to as frame period this period.
As the time in frame period will not carry out the display of any picture, interior LED display panel is all during this period Light emitting diode is in closed mode.If being taken pictures to the LED display panel for having frame period using high speed camera, frame period can be anti- To on the photo taken should correspond to a plurality of concealed wire, have impact on image quality and viewing effect.
The content of the invention
In view of this, it is an object of the invention to provide a kind of display control unit, control card, display device and its control Method, which can avoid the picture between consecutive frame from interfering, and picture normally can show within the time of frame period.
According to the first aspect of the invention, there is provided a kind of display control unit, including:Drive module, for output driving Signal, and output display completes signal after the completion of the drive signal output for a frame display picture;And control Module, completes signal for receiving frame synchronizing signal and display, completes signal according to frame synchronizing signal and display and controls the drive Whether dynamic model block exports the drive signal for next frame display picture.
Preferably, after the control module receives frame synchronizing signal from outside video card, judge whether to receive from The display of drive module completes signal, if it is, output is otherwise continued to output for the drive signal of next frame display picture For the drive signal of present frame display picture.
Preferably, the display control unit is receiving card.
According to the second aspect of the invention, there is provided a kind of control card, including:Display control dress described in any of the above-described Put;Sending card, the sending card is for being supplied to the display control unit frame by frame by the video signal of input;And video card, The video card is used to provide frame synchronizing signal.
According to the third aspect of the invention we, there is provided a kind of display device, including:Control card described above;Display floater, Shown for according to the drive signal from display control unit.
Preferably, also including picture output device, the picture output device is used to provide video letter for the control card Number.
Preferably, the display floater is LED display panel.
According to the fourth aspect of the invention, there is provided a kind of control method of display device, including:Output drive signal and Signal is completed for output display after the completion of the drive signal output of a frame display picture;And according to frame synchronizing signal and Display completes signal and judges whether to export the drive signal for next frame display picture.
Preferably, after receiving frame synchronizing signal, judge whether that receiving display completes signal, if it is, output For the drive signal of next frame display picture, the drive signal for present frame display picture is otherwise continued to output.
Display control unit, control card, display device and its control method that the present invention is provided, which not only avoids consecutive frame Between picture interfere, and in causing time of frame period, picture may continue to normal display, optimize display effect.
Description of the drawings
By description referring to the drawings to inventive embodiments, the above-mentioned and other purposes of the present invention, feature and excellent Point will be apparent from, in the accompanying drawings:
Fig. 1 illustrates the structure chart of the display control unit that first embodiment of the invention is provided.
Fig. 2 illustrates the structure chart of the control card that second embodiment of the invention is provided.
Fig. 3 illustrates the structure chart of the display device that third embodiment of the invention is provided.
The flow chart that Fig. 4 illustrates the control method of the display device that fourth embodiment of the invention is provided.
Specific embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under It is during text is to the detailed description of the embodiment of the present invention, detailed to describe some specific detail sections, those skilled in the art are come Say that the description of part without these details can also understand the present invention completely.It is in order to avoid obscuring the essence of the present invention, known Method, process, flow process are not described in detail.
In various figures, identical element is represented using similar reference.For the sake of clarity, in accompanying drawing Various pieces are not necessarily to scale.Additionally, may not shown part known to some in figure.Flow chart, frame in accompanying drawing Figure illustrates system, method, the possible System Framework of circuit, function and the operation of embodiments of the invention, the square frame of accompanying drawing And square frame order is used only to preferably illustrate the process and step of embodiment, and should not be in this, as the limit to invention itself System.
Fig. 1 illustrates the structure chart of the display control unit that first embodiment of the invention is provided.As illustrated, the present invention first The display control unit 110 that embodiment is provided for example, receiving card, the display control unit 110 include 111 He of drive module Control module 112, the drive module 111 are used for output drive signal, and in the driving for a frame display picture After the completion of signal output, output display completes signal, and the control module 112 receives what outside video card (not shown in figure 1) was provided Frame synchronizing signal, and signal is completed according to the frame synchronizing signal and the display control whether the drive module 111 exports For the drive signal of next frame display picture.Specifically, when the control module 112 receives frame synchronization letter from outside video card After number, if the display for receiving the output of drive module 111 completes signal, control module 112 then controls the output pin of drive module 111 Drive signal to next frame display picture, otherwise, the control of control module 112 drive module 111 is continued to output for present frame The drive signal of display picture.
Fig. 2 illustrates the structure chart of the control card that second embodiment of the invention is provided.As illustrated, second embodiment of the invention The control card 100 of offer includes sending card 120, display control unit 110 and video card 130.Wherein, the display control unit 110 is, for example, the display control unit that first embodiment of the invention is provided, and its structure refer to be implemented to the present invention first above The explanation of example, is not repeated narration herein.The sending card 120 is based on specific host-host protocol, by video signal with fixation Data form be supplied to the display control unit 110 frame by frame, the video card 130 is for the display control unit 110 Frame synchronizing signal is provided, the frame synchronizing signal is persistent period longer pulse signal, is indicate aobvious to former frame Show the end of picture scanning, and the beginning to the scanning of new frame display picture, the frame synchronizing signal may continue a line or several Capable sweep time.
Fig. 3 illustrates the structure chart of the display device that third embodiment of the invention is provided.As illustrated, the present invention the 3rd is implemented The display device 400 that example is provided includes picture output device 200, control card 100 and display floater 300.Wherein, the control The control card that for example, second embodiment of the invention is provided of card 100, its structure are refer to above to second embodiment of the invention Illustrate, narration is not repeated herein.The picture output device 200 is for example included selected from computer, panel computer and handss Any one in machine, for providing video signal for the control card 100, the control card 100 according to the video signal is The display floater 300 provides drive signal, controls the display floater 300 and realizes that picture shows, the display floater 300 Such as it is LED display panel.
The flow chart that Fig. 4 illustrates the control method of the display device that fourth embodiment of the invention is provided.As illustrated, this The control method of the display device that bright fourth embodiment is provided includes step S401-S404.
In step S401, the drive signal for present frame display picture is sent.
In step S402, judge whether to receive frame synchronizing signal.
If it is not, then execution step S401, continues to send the drive signal for present frame display picture.
If it is, execution step S403.
In step S403, judge whether that receiving display completes signal.
If it is not, then execution step S401, continues to send the drive signal for present frame display picture.
If it is, execution step S404, sends the drive signal for next frame display picture.
Display control unit, control card, display device and its control method that the present invention is provided, relative to prior art Speech, which not only avoids the picture between consecutive frame from interfering, and so that picture may continue to normal showing in the time of frame period Show, optimize display effect.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation are made a distinction with another entity or operation, and are not necessarily required or implied these entities or deposit between operating In any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to Nonexcludability is included, so that a series of process, method, article or equipment including key elements not only will including those Element, but also including other key elements being not expressly set out, or also include for this process, method, article or equipment Intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that Also there is other identical element in process, method, article or equipment including the key element.
According to embodiments of the invention as described above, these embodiments do not have all of details of detailed descriptionthe, not yet It is only described specific embodiment to limit the invention.Obviously, as described above, can make many modifications and variations.This explanation These embodiments are chosen and specifically described to book, is for the principle and practical application of preferably explaining the present invention, so that affiliated Technical field technical staff can be used using modification of the invention and on the basis of the present invention well.The present invention only receives right The restriction of claim and its four corner and equivalent.

Claims (9)

1. a kind of display control unit, it is characterised in that include:
Drive module, for output drive signal, and after the completion of the drive signal output for a frame display picture Output display completes signal;And
Control module, completes signal for receiving frame synchronizing signal and display, completes signal control according to frame synchronizing signal and display Make whether the drive module exports the drive signal for next frame display picture.
2. display control unit according to claim 1, it is characterised in that the control module is received from outside video card After frame synchronizing signal, judge whether to receive the display from drive module and complete signal, if it is, output is for next The drive signal of frame display picture, otherwise continues to output the drive signal for present frame display picture.
3. display control unit according to claim 1, it is characterised in that the display control unit is receiving card.
4. a kind of control card, including:
Display control unit any one of claim 1-3;
Sending card, the sending card is for being supplied to the display control unit frame by frame by the video signal of input;And
Video card, the video card are used to provide frame synchronizing signal.
5. a kind of display device, it is characterised in that include:
Control card described in claim 4;
Display floater, is shown for according to the drive signal from display control unit.
6. display device according to claim 5, it is characterised in that also including picture output device, the video frequency output Equipment is used to provide video signal for the control card.
7. display device according to claim 7, it is characterised in that the display floater is diode displaying face Plate.
8. a kind of control method of display device, it is characterised in that include:
Output drive signal output display completes signal after the completion of the drive signal output for a frame display picture; And
Signal is completed according to frame synchronizing signal and display to judge whether to export the drive signal for next frame display picture.
9. the control method of display device according to claim 8, it is characterised in that after receiving frame synchronizing signal, Judge whether that receiving display completes signal, if it is, output otherwise continues for the drive signal of next frame display picture Drive signal of the output for present frame display picture.
CN201710097525.5A 2017-02-22 2017-02-22 Display control unit, control card, display device and its control method Active CN106601187B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109147650A (en) * 2017-06-28 2019-01-04 西安诺瓦电子科技有限公司 Show synchronisation control means and device and display screen control system
WO2023024135A1 (en) * 2021-08-23 2023-03-02 Tcl华星光电技术有限公司 Driving circuit and display device

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Publication number Priority date Publication date Assignee Title
EP1598806A1 (en) * 2004-05-19 2005-11-23 Vastview Technology Inc. Method and device for driving liquid crystal display
US20060022922A1 (en) * 2000-08-03 2006-02-02 Akihito Jinda Liquid crystal display device driving method
CN101145327A (en) * 2006-09-15 2008-03-19 株式会社半导体能源研究所 Display device and method of driving the same
CN102438117A (en) * 2010-09-29 2012-05-02 联芯科技有限公司 Image data acquisition method for camera on handheld terminal and handheld terminal
CN106095366A (en) * 2016-06-07 2016-11-09 北京小鸟看看科技有限公司 A kind of shorten the method for picture delay, device and virtual reality device
US20170040001A1 (en) * 2015-08-04 2017-02-09 Mediatek Singapore Pte. Ltd. Electronic device and method for controlling screen-refresh rate

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Publication number Priority date Publication date Assignee Title
US20060022922A1 (en) * 2000-08-03 2006-02-02 Akihito Jinda Liquid crystal display device driving method
EP1598806A1 (en) * 2004-05-19 2005-11-23 Vastview Technology Inc. Method and device for driving liquid crystal display
CN101145327A (en) * 2006-09-15 2008-03-19 株式会社半导体能源研究所 Display device and method of driving the same
CN102438117A (en) * 2010-09-29 2012-05-02 联芯科技有限公司 Image data acquisition method for camera on handheld terminal and handheld terminal
US20170040001A1 (en) * 2015-08-04 2017-02-09 Mediatek Singapore Pte. Ltd. Electronic device and method for controlling screen-refresh rate
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109147650A (en) * 2017-06-28 2019-01-04 西安诺瓦电子科技有限公司 Show synchronisation control means and device and display screen control system
WO2023024135A1 (en) * 2021-08-23 2023-03-02 Tcl华星光电技术有限公司 Driving circuit and display device

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