CN101281741B - Display device and method for dynamic picture - Google Patents
- ️Wed Jun 16 2010
CN101281741B - Display device and method for dynamic picture - Google Patents
Display device and method for dynamic picture Download PDFInfo
-
Publication number
- CN101281741B CN101281741B CN2007100968012A CN200710096801A CN101281741B CN 101281741 B CN101281741 B CN 101281741B CN 2007100968012 A CN2007100968012 A CN 2007100968012A CN 200710096801 A CN200710096801 A CN 200710096801A CN 101281741 B CN101281741 B CN 101281741B Authority
- CN
- China Prior art keywords
- signal
- video signal
- technology
- backlight
- picture Prior art date
- 2007-04-03 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title abstract description 32
- 238000005516 engineering process Methods 0.000 claims abstract description 78
- 238000003780 insertion Methods 0.000 claims abstract description 41
- 230000037431 insertion Effects 0.000 claims abstract description 41
- 238000012856 packing Methods 0.000 claims 7
- 206010011968 Decreased immune responsiveness Diseases 0.000 claims 2
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 241000283070 Equus zebra Species 0.000 description 1
- 206010047571 Visual impairment Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Images
Landscapes
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
本发明公开了一种动态画面的显示装置与方法，上述显示方法包括下列步骤：首先，接收一影像信号，然后根据画面的明亮度，配合画面插黑技术与动态背光技术其中之一，以显示影像信号。当画面为亮态时，使用画面插黑技术，当画面为暗态时，使用动态背光技术，藉以避免同时使用画面插黑技术与动态背光技术所造成的斑纹现象。
The present invention discloses a dynamic picture display device and method, the display method comprises the following steps: first, receiving an image signal, and then displaying the image signal by using one of the image black insertion technology and the dynamic backlight technology according to the brightness of the image. When the image is bright, the image black insertion technology is used, and when the image is dark, the dynamic backlight technology is used, so as to avoid the streaking phenomenon caused by using the image black insertion technology and the dynamic backlight technology at the same time.
Description
技术领域technical field
本发明是关于一种动态画面改善的方法，且特别是关于一种利用画面插黑技术与动态背光技术来改善动态画面的显示方法。The present invention relates to a method for improving a dynamic picture, and in particular to a display method for improving a dynamic picture by using a black-inserting technique and a dynamic backlight technique.
背景技术Background technique
早期薄膜电晶体液晶显示器(Thin Film Transistor Liquid Crystal Display，简称TFT-LCD)主要的应用范围是在笔记本电脑(notebook，简称NB)或个人电脑的荧幕，所以其影像信号大多为静态画面。但是，近几年来，由于各家液晶显示器厂商的研发，液晶显示技术也已经渐渐的应用在大尺寸的TFT-LCD上，而影像信号也从以前的静态变成是动态画面的影像信号。然而，目前的TFT-LCD是采用保持模式(hold-type)的显示，也即在下一笔数据未写入像素之前，该像素即保持显示目前这笔数据。因此，这样的保持模式在动态画面上时，会造成动态画面的拖影现象。Early thin film transistor liquid crystal display (Thin Film Transistor Liquid Crystal Display, referred to as TFT-LCD) is mainly used in the screen of a notebook computer (notebook, referred to as NB) or a personal computer, so most of its image signals are static images. However, in recent years, due to the research and development of various liquid crystal display manufacturers, liquid crystal display technology has gradually been applied to large-size TFT-LCDs, and image signals have changed from static to dynamic image signals. However, the current TFT-LCD adopts a hold-type display, that is, the pixel keeps displaying the current data before the next data is written into the pixel. Therefore, when such a hold mode is on a dynamic picture, it will cause a smear phenomenon of the dynamic picture.
为改善动态画面的显示品质，目前主要有两种方式，分别为画面插黑(blackinsert，BI)与动态背光(dynamic backlight，DBL)。画面插黑技术主要是利用黑画面的呈现，以消除人眼的积分效应，而动态背光技术则经由控制背光源的亮度以提升画面的对比度。但两者技术因其技术特性，若直接结合使用，会产生斑纹(zebra)现象。如图1所示：图1为根据现有技术，结合画面插黑与动态背光的斑纹现象。In order to improve the display quality of dynamic images, there are currently two methods, namely, black insert (BI) and dynamic backlight (DBL). Black screen insertion technology mainly utilizes the presentation of a black screen to eliminate the integral effect of the human eye, while dynamic backlight technology improves the contrast of the screen by controlling the brightness of the backlight source. However, due to the technical characteristics of the two technologies, if they are used directly in combination, zebra phenomenon will occur. As shown in Figure 1: Figure 1 shows the speckle phenomenon based on the prior art combined with black interpolation and dynamic backlight.
由于动态背光主要利用数字调光，即利用快速的亮灭交替，藉由调整工作周期来使背光的亮度改变。当插黑与背光开启的时间重叠时，画面中的插黑区块会被开启的背光所突显，而与背光关闭时的插黑区块形成对比。换言之，在背光开启与关闭两种状态下，画面插黑的效果不同，因而产生斑纹现象。在同一图框(frame)时间中，背光开启的次数便会决定画面留下的斑纹数，而斑纹的宽窄则与背光的开启时间相关，开启时间愈长则斑纹愈宽。Because the dynamic backlight mainly utilizes digital dimming, that is, utilizes rapid on-off alternation, and adjusts the duty cycle to change the brightness of the backlight. When the time of black insertion and backlight turning on overlaps, the black insertion area in the screen will be highlighted by the turned on backlight, and will be in contrast with the black insertion area when the backlight is turned off. In other words, when the backlight is turned on or off, the effect of inserting black on the screen is different, thus causing the speckle phenomenon. In the same frame (frame) time, the number of times the backlight is turned on will determine the number of stripes left on the screen, and the width of the stripes is related to the turn-on time of the backlight. The longer the turn-on time, the wider the stripes.
发明内容Contents of the invention
本发明的目的之一是在提供一种动态画面的显示方法与装置，结合画面插黑技术与动态背光技术，根据画面的明亮度来使用画面插黑技术或动态背光技术，避免同时使用画面插黑技术或动态背光技术而造成斑纹现象。One of the purposes of the present invention is to provide a method and device for displaying dynamic images, combining black-inserting technology and dynamic backlight technology, using black-inserting technology or dynamic backlighting technology according to the brightness of the screen, and avoiding the simultaneous use of black-inserting technology The speckle phenomenon is caused by black technology or dynamic backlight technology.
本发明的目的之一是在提供一种动态画面的显示方法与装置，交替使用画面插黑技术与动态背光技术其中之一于动态画面的改善，避免同时使用画面插黑技术或动态背光技术而造成斑纹现象。One of the objectives of the present invention is to provide a method and device for displaying a dynamic picture, alternately using one of the picture black insertion technology and the dynamic backlight technology to improve the dynamic picture, and avoid using the picture black insertion technology or the dynamic backlight technology at the same time. cause streaking.
本发明提供一种动态画面的显示方法，包括下列步骤：首先，接收一影像信号，然后配合画面插黑技术与动态背光技术其中之一，以显示影像信号，包括下列步骤：判断该影像信号的明亮度，若影像信号为亮态，则使用画面插黑技术来显示影像信号；若影像信号为暗态，则使用动态背光技术显示影像信号。其中，动态背光技术为利用快速的亮灰交替，通过调整工作周期来使背光的亮度改变。The present invention provides a method for displaying a dynamic picture, which includes the following steps: firstly, receiving an image signal, and then cooperating with one of the screen black insertion technology and the dynamic backlight technology to display the image signal, including the following steps: judging the image signal Brightness, if the image signal is in bright state, then use the screen black insertion technology to display the image signal; if the image signal is in dark state, then use the dynamic backlight technology to display the image signal. Among them, the dynamic backlight technology utilizes fast bright-gray alternation and adjusts the duty cycle to change the brightness of the backlight.
在本发明一实施例中，上述显示方法，其中若影像信号处于中间状态，则画面插黑技术与动态背光技术失能。In an embodiment of the present invention, in the above display method, if the image signal is in an intermediate state, the black insertion technology and the dynamic backlight technology are disabled.
在本发明一实施例中，上述显示方法，其中令影像信号的灰阶值为X。其中X介于0至255之间，当X等于0时，影像信号为全黑，X等于255时，影像信号为全白，若65≤X≤85则影像信号为中间状态。In an embodiment of the present invention, in the above display method, the grayscale value of the image signal is X. Where X is between 0 and 255. When X is equal to 0, the video signal is completely black, when X is equal to 255, the video signal is completely white, and if 65≤X≤85, the video signal is in an intermediate state.
在本发明一实施例中，上述显示方法，其中若0≤X＜65则影像信号为暗态，若85＜X≤255则影像信号为亮态。In an embodiment of the present invention, in the above display method, if 0≦X<65, the image signal is in a dark state, and if 85<X≦255, the image signal is in a bright state.
在本发明一实施例中，上述显示方法，其中在判断影像信号的明亮度的步骤，还包括根据影像信号的平均灰阶度判断影像信号的明亮度。In an embodiment of the present invention, the above display method, in the step of judging the brightness of the video signal, further includes judging the brightness of the video signal according to the average gray scale of the video signal.
本发明提出一种动态画面的显示方法，包括下列步骤：首先，接收一影像信号，然后配合画面插黑技术与动态背光技术其中之一，以显示影像信号，包括下列步骤：依序显示第一画面与第二画面；使用画面插黑技术来显示第一画面；以及使用动态背光技术来显示第二画面，其中动态背光技术为利用快速的亮灰交替，通过调整工作周期来使背光的亮度改变。The present invention proposes a method for displaying a dynamic image, which includes the following steps: firstly, receiving an image signal, and then cooperating with one of the image black insertion technology and the dynamic backlight technology to display the image signal, including the following steps: sequentially displaying the first screen and the second screen; display the first screen by using screen black insertion technology; and display the second screen by using dynamic backlight technology, in which the dynamic backlight technology utilizes fast bright-gray alternation and adjusts the duty cycle to change the brightness of the backlight .
本发明提出一种显示装置，包括时序控制器背光控制器以及判断单元。其中，时序控制器具有一画面插黑功能，背光控制器具有动态背光功能，而判断单元则用以判断影像信号的明亮度。其中，若影像信号为一亮态，则使能时序控制器的该画面插黑功能，若影像信号为一暗态，则使能背光控制器的动态背光功能，其中动态背光功能为利用快速的亮灰交替，通过调整工作周期来使背光的亮度改变。The present invention provides a display device, including a timing controller, a backlight controller and a judging unit. Among them, the timing controller has the function of inserting black in a frame, the backlight controller has the function of dynamic backlight, and the judging unit is used for judging the brightness of the image signal. Wherein, if the image signal is in a bright state, the black insertion function of the picture of the timing controller is enabled; if the image signal is in a dark state, the dynamic backlight function of the backlight controller is enabled, wherein the dynamic backlight function utilizes fast Bright gray alternates, and the brightness of the backlight is changed by adjusting the duty cycle.
在本发明一实施例中，上述的显示装置，其中若影像信号处于一中间状态，则使画面插黑功能与动态背光功能失能。In an embodiment of the present invention, in the above display device, if the image signal is in an intermediate state, the black insertion function and the dynamic backlight function are disabled.
综合上述，本发明利用画面的明亮度来判断画面插黑技术与动态背光技术的适用时机，当画面较暗时则使用动态背光来显现更深沉的黑，当画面较亮时，则使用画面插黑技术来减少动画响应时间(Moving Picture Re-sponse Time，MPRT)以改善动画品质。此外，本发明更提出交错使用画面插黑技术与该动态背光技术来显示画面的方式，避免同时使用画面插黑技术或动态背光技术而造成斑纹现象。To sum up the above, the present invention uses the brightness of the picture to judge the applicable timing of the picture black insertion technology and the dynamic backlight technology. When the picture is dark, the dynamic backlight is used to display deeper black. Black technology to reduce animation response time (Moving Picture Re-sponse Time, MPRT) to improve animation quality. In addition, the present invention further proposes a method of interleaving using the black-inserting technology and the dynamic backlight technology to display images, so as to avoid the speckle phenomenon caused by using the black-inserting technology and the dynamic backlight technology at the same time.
为让本发明的上述和其他目的、特征和优点能更明显易懂，下文特举本发明的较佳实施例，并配合附图作详细说明如下。In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments of the present invention will be exemplified below and described in detail with accompanying drawings.
附图说明Description of drawings
图1为根据现有技术的斑纹现象。Fig. 1 is a mottled phenomenon according to the prior art.
图2为根据本发明一实施例之显示装置的方块图。FIG. 2 is a block diagram of a display device according to an embodiment of the present invention.
图3为根据本发明的画面平均亮度图。FIG. 3 is a graph of average brightness of a picture according to the present invention.
图4为根据本发明另一实施例的显示方法示意图。FIG. 4 is a schematic diagram of a display method according to another embodiment of the present invention.
图5为根据本发明另一实施例的驱动方法之流程图。FIG. 5 is a flowchart of a driving method according to another embodiment of the present invention.
图6为根据图5实施例的驱动方法的流程图。FIG. 6 is a flow chart of the driving method according to the embodiment of FIG. 5 .
图7为根据图5实施例的驱动方法的流程图。FIG. 7 is a flow chart of the driving method according to the embodiment of FIG. 5 .
具体实施方式Detailed ways
画面插黑技术主要用于减少动画响应时间，改善动画品质，尤其于亮画面的动画呈现，更能彰显画面插黑的功效，然而在暗态时，因画面过暗而不易彰显画面插黑的效果。反之，动态背光技术主要可以使画面呈现更深沉的黑，然而在亮态时却没有特殊的功效。本实施例即是利用上述差异，以画面的明亮度来判断画面插黑技术与动态背光技术的使用时机，在同一时间(或同一图框中)择一使用，使面板能拥有画面插黑与动态背光的效能，并且不会有斑纹产生。The screen black insertion technology is mainly used to reduce the animation response time and improve the animation quality, especially for the animation presentation of the bright screen, it can better highlight the effect of the screen black insertion, but in the dark state, it is difficult to highlight the screen black insertion because the screen is too dark Effect. On the contrary, the dynamic backlight technology can mainly make the picture appear deeper black, but it has no special effect in the bright state. In this embodiment, the above-mentioned differences are used to judge the timing of using the black-inserting technology and the dynamic backlight technology based on the brightness of the screen, and choose one to use at the same time (or in the same picture frame), so that the panel can have black-inserting and dynamic backlight technology. The performance of dynamic backlight without mottle.
图2为根据本发明一实施例的显示装置的方块图，显示装置200包括判断单元210、时序控制器220、背光控制器230、面板240以及背光源250。其中，时序控制器220具有画面插黑功能，而背光控制器230具有动态背光功能，判断单元210则用来判断影像信号IS的明亮度。当影像信号为亮态时，判断单元210使能时序控制器220的画面插黑功能，当影像信号IS为暗态时，则使能背光控制器230的动态背光功能。2 is a block diagram of a display device according to an embodiment of the present invention. The display device 200 includes a determination unit 210 , a timing controller 220 , a backlight controller 230 , a panel 240 and a backlight 250 . Wherein, the timing controller 220 has the function of inserting black on the screen, and the backlight controller 230 has the function of dynamic backlight, and the judging unit 210 is used for judging the brightness of the image signal IS. When the image signal IS is in a bright state, the judging unit 210 enables the black insertion function of the timing controller 220 , and when the image signal IS is in a dark state, enables the dynamic backlight function of the backlight controller 230 .
换言之，显示装置200根据影像信号IS的明亮度，决定使用画面插黑功能或动态背光功能其中之一来改善动态画面的显示效果。在本实施例中，将画面的平均亮度分为三个等级，分别为亮态、暗态以及中间状态。在亮态的画面使用画面插黑技术，在暗态的画面使用动态背光技术，在中间状态的画面皆不使用画面插黑技术与动态背光技术。In other words, according to the brightness of the image signal IS, the display device 200 decides to use one of the frame black insertion function or the dynamic backlight function to improve the display effect of the dynamic image. In this embodiment, the average brightness of the picture is divided into three levels, which are bright state, dark state and intermediate state. In the bright state, the screen black insertion technology is used, in the dark state, the dynamic backlight technology is used, and the screen black insertion technology and dynamic backlight technology are not used in the intermediate state screen.
在画面明亮度的判断方面，如图3所示，图3为根据本发明的画面平均亮度图。在本实施例中，令影像信号IS的灰阶值为X，X介于0至255之间。当X等于0时，影像信号IS为全黑，X等于255时，影像信号IS为全白。其中，若65≤X≤85则影像信号IS为中间状态；若0≤X＜65则影像信号IS为暗态；若85＜X≤255则影像信号IS为亮态。所谓亮态即影像信号IS对应于平均亮度较高的画面，暗态则对应于平均亮度较低的画面。其区分的灰阶值可依照不同的显示器规格、使用环境以及所使用的画面插黑技术、动态背光技术来订定，并不以本实施例为限。In terms of judging the brightness of the screen, as shown in FIG. 3 , FIG. 3 is a graph of the average brightness of the screen according to the present invention. In this embodiment, the grayscale value of the image signal IS is X, and X is between 0 and 255. When X is equal to 0, the image signal IS is completely black, and when X is equal to 255, the image signal IS is completely white. Wherein, if 65≤X≤85, the image signal IS is in an intermediate state; if 0≤X<65, the image signal IS is in a dark state; if 85<X≤255, the image signal IS is in a bright state. The so-called bright state means that the image signal IS corresponds to a picture with a higher average brightness, and the dark state corresponds to a picture with a lower average brightness. The gray scale values to be distinguished can be determined according to different display specifications, use environments, black-inserting technology and dynamic backlight technology used, and are not limited to this embodiment.
在本发明另一实施例中，为避免同时使用画面插黑(black insert，BI)功能与动态背光(dynamic backlight，DBL)功能所造成的斑纹现象。本实施例提出一种交替式的显示方法，如图4所示，图4为根据本发明另一实施例的显示方法示意图。在本实施例中，在连续画面F(N)～F(N+3)中交替使用画面插黑(black insert，BI)技术与动态背光(dynamic backlight，DBL)技术。例如，在画面F(N)使用画面插黑(BI)技术，在下一个画面F(N+1)使用动态背光(DBL)技术，轮流使用画面插黑与动态背光来改善动态画面。由于在同一图框时间(显示依画面的时间)中，显示装置仅会使用画面插黑技术或动态背光技术其中之一，因此不会产生斑纹现象。In another embodiment of the present invention, in order to avoid the speckle phenomenon caused by using the black insert (BI) function and the dynamic backlight (DBL) function at the same time. This embodiment proposes an alternate display method, as shown in FIG. 4 , which is a schematic diagram of a display method according to another embodiment of the present invention. In this embodiment, black insert (BI) technology and dynamic backlight (DBL) technology are alternately used in the continuous frames F(N)˜F(N+3). For example, black insertion (BI) technology is used in frame F(N), dynamic backlight (DBL) technology is used in the next frame F(N+1), black insertion and dynamic backlight are used alternately to improve dynamic images. Since the display device only uses one of the frame black insertion technology or the dynamic backlight technology during the same frame time (the time for displaying each frame), there is no speckle phenomenon.
从另一个观点来看，可将上述显示装置的操作方式归纳为驱动方法，并配合流程图说明如下。图5为根据本发明另一实施例的驱动方法的流程图。步骤S510接收一影像信号，然后步骤S520配合画面插黑技术与动态背光技术其中之一以显示影像信号。其中步骤S520更有两种实施例方式，分别以图6及图7说明如下。From another point of view, the above-mentioned operation mode of the display device can be summarized as a driving method, which will be described as follows with a flow chart. FIG. 5 is a flowchart of a driving method according to another embodiment of the present invention. Step S510 receives an image signal, and then step S520 cooperates with one of the frame black insertion technique and the dynamic backlight technique to display the image signal. The step S520 has two other embodiments, which are described as follows with reference to FIG. 6 and FIG. 7 respectively.
图6为根据图5实施例的驱动方法的流程图。如图6所示，步骤S520包括步骤S610～S630，步骤S610判断该影像信号的明亮度(判断方式请参照图3的说明)，然后在步骤S620中，若影像信号为亮态，则使用画面插黑技术来显示影像信号；在步骤S630中，若影像信号为暗态，则使用动态背光技术显示影像信号。FIG. 6 is a flow chart of the driving method according to the embodiment of FIG. 5 . As shown in FIG. 6, step S520 includes steps S610-S630. Step S610 judges the brightness of the image signal (please refer to the description in FIG. The black insertion technique is used to display the video signal; in step S630, if the video signal is in a dark state, the dynamic backlight technology is used to display the video signal.
图7为根据图5实施例的驱动方法的流程图。如图6所示，步骤S520包括步骤S710～S730，步骤S710依序显示第一画面与第二画面，其中第一画面与第二画面对应于所接收的影像信号。然后，步骤S720使用画面插黑技术来显示第一画面，步骤S730使用动态背光技术来显示第二画面。(请参照图4的说明)FIG. 7 is a flow chart of the driving method according to the embodiment of FIG. 5 . As shown in FIG. 6 , step S520 includes steps S710 - S730 , and step S710 sequentially displays a first frame and a second frame, wherein the first frame and the second frame correspond to the received image signal. Then, in step S720, the first frame is displayed using the frame black insertion technology, and in step S730, the second frame is displayed using the dynamic backlight technology. (Please refer to the description of Figure 4)
综合上述，根据上述实施例，本发明根据画面的明亮度，择一使用画面插黑技术或动态背光技术，避免同时使用画面插黑技术或动态背光技术而造成斑纹现象。同时，发明另提出一种交替式的驱动方法，轮流使用画面插黑技术及动态背光技术，在亮态时，降低画面的残影现象；在暗态时，让画面的黑更深沉，且同样可避免斑纹现象的发生。To sum up, according to the above-mentioned embodiments, the present invention selects either the black insertion technology or the dynamic backlight technology according to the brightness of the screen, so as to avoid the speckle phenomenon caused by using the black insertion technology or the dynamic backlight technology at the same time. At the same time, the invention also proposes an alternative driving method, which alternately uses the screen black insertion technology and dynamic backlight technology to reduce the afterimage phenomenon of the screen in the bright state; in the dark state, the black of the screen is deeper, and the same The occurrence of speckle phenomenon can be avoided.
虽然本发明已以较佳实施例揭示如上，然其并非用以限定本发明，任何所属技术领域具有通常知识者，在不脱离本发明的精神和范围内，当可作些许更动与润饰，因此本发明的保护范围当以权利要求所界定的为准。Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be defined by the claims.
Claims (11)
1. a display packing comprises the following steps:
Receive a signal of video signal; And
Cooperate a picture black frame insertion technology and a dynamic backlight technology one of them, to show this signal of video signal, comprise the following steps:
Judge the lightness of this signal of video signal;
If this signal of video signal is a bright attitude, then use a picture black frame insertion technology to show this signal of video signal; And
If this signal of video signal is a dark attitude, then use a dynamic backlight technology to show this signal of video signal;
Wherein, this dynamic backlight technology changes brightness backlight for utilizing bright fast ash alternately by adjusting the work period.
2. display packing as claimed in claim 1 is characterized in that, is in an intermediateness as if this signal of video signal, then this picture black frame insertion technology and this dynamic backlight technology anergy.
3. display packing as claimed in claim 2 is characterized in that, the GTG value of this signal of video signal is X, and X is between 0 to 255, when X equaled 0, this signal of video signal was complete black, and X equals at 255 o'clock, this signal of video signal is complete white, if 65≤X≤85, then this signal of video signal is this intermediateness.
4. display packing as claimed in claim 1, it is characterized in that the GTG value of this signal of video signal is X, X is between 0 to 255, when X equals 0, this signal of video signal is complete black, and X equals at 255 o'clock, and this signal of video signal is complete white, if 0≤X＜65, then this signal of video signal is this dark attitude, if 85＜X≤255, then this signal of video signal is this bright attitude.
5. display packing as claimed in claim 1 is characterized in that, the step in the lightness of judging this signal of video signal comprises the lightness of judging this signal of video signal according to the average shade of gray of this signal of video signal.
6. a display packing comprises the following steps:
Receive a signal of video signal; And
Cooperate a picture black frame insertion technology and a dynamic backlight technology one of them, to show this signal of video signal, comprise the following steps:
Show one first picture and one second picture in regular turn;
Use this picture black frame insertion technology to show this first picture; And
Use this dynamic backlight technology to show this second picture;
Wherein, this dynamic backlight technology changes brightness backlight for utilizing bright fast ash alternately by adjusting the work period.
7. display device comprises:
Time schedule controller has a picture black frame insertion function;
One backlight controller has a dynamic backlight function; And
One judging unit is in order to judge the lightness of a signal of video signal;
Wherein,, then enable this picture black frame insertion function of this time schedule controller,, then enable this dynamic backlight function of this backlight controller if this signal of video signal is a dark attitude if this signal of video signal is a bright attitude;
Wherein, this dynamic backlight function changes brightness backlight for utilizing bright fast ash alternately by adjusting the work period.
8. display device as claimed in claim 7 is characterized in that, if this signal of video signal is in an intermediateness, then makes this picture black frame insertion function and this dynamic backlight function anergy.
9. display device as claimed in claim 8 is characterized in that, the GTG value of this signal of video signal is X, and X is between 0 to 255, when X equaled 0, this signal of video signal was complete black, and X equals at 255 o'clock, this signal of video signal is complete white, if 65≤X≤85, then this signal of video signal is this intermediateness.
10. display packing as claimed in claim 7, it is characterized in that the GTG value of this signal of video signal is X, X is between 0 to 255, when X equals 0, this signal of video signal is complete black, and X equals at 255 o'clock, and this signal of video signal is complete white, if 0≤X＜65, then this signal of video signal is this dark attitude, if 85＜X≤255, then this signal of video signal is this bright attitude.
11. display device as claimed in claim 7 is characterized in that, also comprises:
One panel is in order to show this signal of video signal; And
One backlight is controlled by this backlight controller, and is backlight to this panel in order to provide one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100968012A CN101281741B (en) | 2007-04-03 | 2007-04-03 | Display device and method for dynamic picture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100968012A CN101281741B (en) | 2007-04-03 | 2007-04-03 | Display device and method for dynamic picture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101281741A CN101281741A (en) | 2008-10-08 |
| CN101281741B true CN101281741B (en) | 2010-06-16 |
Family
ID=40014169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100968012A Expired - Fee Related CN101281741B (en) | 2007-04-03 | 2007-04-03 | Display device and method for dynamic picture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101281741B (en) |
Families Citing this family (3)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833920B (en) * | 2009-03-13 | 2012-09-26 | 华映视讯（吴江）有限公司 | Drive circuit and grey insertion method for liquid crystal display |
| CN107665694B (en) * | 2016-07-29 | 2020-06-30 | 上海和辉光电有限公司 | Brightness adjusting method and system of display device |
| CN114170974B (en) * | 2021-12-02 | 2023-04-07 | 深圳创维新世界科技有限公司 | Black insertion optimization method, virtual reality device and readable storage medium |
Citations (2)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1565014A (en) * | 2002-03-28 | 2005-01-12 | 松下电器产业株式会社 | Liquid crystal display device |
| CN1797529A (en) * | 2004-12-25 | 2006-07-05 | 群康科技(深圳)有限公司 | Method for driving LCD faceplate in active matrix |
-
2007
- 2007-04-03 CN CN2007100968012A patent/CN101281741B/en not_active Expired - Fee Related
Patent Citations (2)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1565014A (en) * | 2002-03-28 | 2005-01-12 | 松下电器产业株式会社 | Liquid crystal display device |
| CN1797529A (en) * | 2004-12-25 | 2006-07-05 | 群康科技(深圳)有限公司 | Method for driving LCD faceplate in active matrix |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101281741A (en) | 2008-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5631565B2 (en) | 2014-11-26 | Display device |
| JP5344846B2 (en) | 2013-11-20 | Display panel control device, liquid crystal display device, electronic device, and display panel drive control method |
| US8952879B2 (en) | 2015-02-10 | Hold type image display system |
| US10262569B2 (en) | 2019-04-16 | Control device, display device configured to adjust the grayscale of a displayed image in which flicker is easily recognizable, and method for controlling display device |
| TWI443633B (en) | 2014-07-01 | Liquid crystal display apparatus |
| JP6004344B2 (en) | 2016-10-05 | Hold-type image display system |
| JP4746735B2 (en) | 2011-08-10 | Driving method of liquid crystal display device |
| US8736535B2 (en) | 2014-05-27 | Hold type image display system |
| US10319318B2 (en) | 2019-06-11 | Image display device and driving method thereof |
| US20070132709A1 (en) | 2007-06-14 | Liquid crystal display device and method for driving the same |
| US20160210908A1 (en) | 2016-07-21 | Control device and control device controlling method |
| JP2009103957A (en) | 2009-05-14 | Display panel control device, liquid crystal display device, electronic apparatus, display device driving method, and control program |
| CN101192386A (en) | 2008-06-04 | Method for driving liquid crystal display and related device |
| JP2008203647A (en) | 2008-09-04 | Image display method and apparatus |
| CN101154368A (en) | 2008-04-02 | liquid crystal display device |
| TWI387948B (en) | 2013-03-01 | Display apparatus and method for moving picture |
| CN101281741B (en) | 2010-06-16 | Display device and method for dynamic picture |
| JP4690879B2 (en) | 2011-06-01 | Liquid crystal display |
| JP2002169514A (en) | 2002-06-14 | Liquid crystal display and display method for the same |
| WO2012165234A1 (en) | 2012-12-06 | Multi-display device |
| JP2009145788A (en) | 2009-07-02 | Liquid crystal display device and method of driving the same |
| TWI406262B (en) | 2013-08-21 | Liquid crystal display and method and apparatus for controlling backlight module thereof |
| JP2006292966A (en) | 2006-10-26 | Liquid crystal display and driving method of liquid crystal display |
| JP2007163704A (en) | 2007-06-28 | Liquid crystal display device, program, and recording medium |
| JP2007225945A (en) | 2007-09-06 | Display apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 2008-10-08 | C06 | Publication | |
| 2008-10-08 | PB01 | Publication | |
| 2008-12-03 | C10 | Entry into substantive examination | |
| 2008-12-03 | SE01 | Entry into force of request for substantive examination | |
| 2010-06-16 | C14 | Grant of patent or utility model | |
| 2010-06-16 | GR01 | Patent grant | |
| 2021-03-16 | CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20200403 |
| 2021-03-16 | CF01 | Termination of patent right due to non-payment of annual fee |