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PostWysłany: Sob 3:15, 05 Mar 2011    Temat postu: Fiber Optic LED driver circuit design principles o

Normal indoor shooting, the shutter open time is about 1 / 200 1 / 60 seconds, so in order to capture the ideal image, the data requirements of the screen refresh rate must be above 1,[link widoczny dla zalogowanych],000 Hz,[link widoczny dla zalogowanych], but the driving principle and the traditional devices are difficult to accomplish this specification.
And with multiple rows of data memory and the PWM constant current driver IC function coupled with a dedicated display controller, can achieve such specifications, to achieve customer requirements, as shown in Figure 4. Loss of gray-scale outdoor LED screen appears and the gray scale display device is lost, particularly the loss of low gray scale, the impact to the display is well known,[link widoczny dla zalogowanych], we often encounter the phenomenon of the display of gray-scale loss of two, and now were introduced as follows: (1) when the loss of non-linear gamma correction, most of such losses are reflected in the loss of low gray scale, and as long as the nonlinear correction to increase the number of bits, you can completely solve the problem
. This is not the focus of this paper; (2) LED display for outdoor photography, we often see the phenomenon of loss of gray scale display (see Figure 5), the original image source are uniform gray in transition , out into the effects of only a few elevation. In fact this phenomenon is the camera shutter open time and display the data the relationship between the refresh time.
in order to complete the transition to shoot all the gray grayscale, requiring the display of data refresh rate is far higher than the camera shutter, so that each time the shutter opening time to ensure that there are multiple data refresh. And we often have outdoor photography a shutter speed below 1ms, so the data refresh rate required to ensure that more than 3kHz to have a high-quality video results, which for a static display of outdoor screens is not difficult to achieve in terms of specifications.
Recently, the industry suddenly came direct type LED backlight technology will disappear within two years the topic! This is the 2010 Berlin Electronics Show, Panasonic executives from the assertion of a conclusion, he said, side-in LED backlight LED backlight technology such as television and on television it is widely used,[link widoczny dla zalogowanych], the TV manufacturers are upgrading their own LED-backlit models ship ratio.
The current LED backlight technology is generally divided into direct type (Direct LED) and side-in (Edge LED), on the merits of the two technologies has been debated. Technical marketing manager for Panasonic Wagenseil, said: "We believe that direct type LED-backlit TV will not have any market, mainly because the price is too high. "Wagenseil explained:" and the side-compared to more direct type backlight LED technology and LED now face a major gap in the supply, so I do not think the direct type LED promise much.


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dusong44
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PostWysłany: Sob 10:28, 05 Mar 2011    Temat postu:

我爱我的家,爱我的儿子、父母、老公。从来没有想到背叛他,可是为什么越不想、越瞧不上的事情,越是会发生在自己身上。我一直坚持自己的原则--不见网友,但是什么原则都在他身上打破了。
  我今年28岁,硕士研究生刚毕业,毕业后直接留在导师的医院工作,是一名医生。我的条件很好,身边的人都羡慕。我和爱人恋爱6年,读研期间结婚,生子。有房有车,他在电视台工作。
  去年冬天,那段时间很闲,因为学业上不太顺心,于是上网聊天打法时间、发泄,认识了一个男人,40岁,是个检察官。[link widoczny dla zalogowanych] [link widoczny dla zalogowanych] [link widoczny dla zalogowanych]
  一开始他就提出见面,每天聊天,几乎每天给我打电话都要见面,我一直回避。我知道他很多很多网友,我知道他常撒谎,我知道我爱上他了,我更知道自己在劫难逃。
  期间有那么半个月没有联系,我觉得很庆幸,后来他又给我打电话,我们似乎比以前更好,在认识4个月的时候见面了(2010年3月2号),之前聊天常说到性,说到情人,我也答应过他。所以后来我不停的骂自己,一切都是自找的。我用悲凉来形容我和他的见面。那次见面,今生难忘。
  他开车来单位接我,上车后感觉很糟糕(不是外表的糟糕)感觉这是最后一次见面,再无瓜葛。他在车上拉我的手,我拒绝。后来去了咖啡屋(包间),他又拉手,我还是挣脱开了。
  后来他强行,我们发生了关系,但是他那方面有问题,很不顺利,我一直要走没有走成,后来又做了一次,还是不行。他说他很久没有女人,和他爱人在很多年前就不行了。
  那个下午真的很难过,我从来不知道一个男人有那么大力气,也从来不知道我身上会发生这样的事情。我用尽最大的力气咬在他手背。他把我送回单位,之后我把他拉到黑名单,删掉他的联系方式。请了假把自己关了三天,哭了三天。 [link widoczny dla zalogowanych] [link widoczny dla zalogowanych] [link widoczny dla zalogowanych]
  很多年来我心里一直渴望一个异性朋友,像父亲、像兄长、像知己,很纯洁,无话不谈。后来我想是不是柏拉图式的。直到遇到这个人,我觉得就是他了。我很珍惜,很不舍。我总是怕自己忘了他。我对他的定义是前无古人后无来者。但是没有想与他有性关系,我想是排斥的。那次见面他把所有的美好都破坏了,我受不了,觉得自己要崩溃。之后便陷在这个事情里面,总是在想为什么他要那么做,为什么之后没有再找我。
  想去找他问个明白,在我心里他不能是坏人,他是完美的。从我这方面来说,我觉得自己一直是优秀的,可是自己被他否定了,一种失败感。后来一个朋友对我说,我对那个人的爱已经不是单纯的男女之情,也许有多少的恋父情结,我把自己理想化的很多东西强加在这个人身上了。
  我不知道,陷在自己思维的怪圈,怎么也走不出来。什么方法都用过,让自己忙碌,回家带孩子等等,后来我又结识了一个新朋友,希望能转移注意,但是还是不行。我是一个很顽固的人。我一直觉得解铃还得系铃人。
  上个月我重新申请一个QQ号加了他,一直没有和他说话,只是想静静的观望他,有个消息便足够。过了一段时间他问我是谁,我说不想让他知道,后来也就摊开了,说了那天的事情,当时还又通了电话。
  我约他吃饭。我就是想见他,想再见他,再看一眼。但是他的意思是只要性。过后几天我给他打电话,他说在上海。与此同时我在网上看到他的QQ在线,IP地址是本地。给他发了表情他没有理睬。(我又一次删了他)然后我的眼泪就下来了,这半年多第一次哭,痛痛快快的哭完后我觉得自己解脱了,前所未有的轻松。之后的这几天虽然偶尔也会想起他,但是和之前不一样了。
  虽然我已为人妻母,但是一直不明白,性真的那么重要吗?没有爱只有性真的可以被接受?我和我老公感情很好,他对于我来说是兄长、是知己、是情人、是爱人,可是为什么我还会爱上别人?对于那个人,太多太多不舍,却无法接受与他肌肤之亲?
  这次经历,让我明白很多,我把它叫做成长的代价,却又是无法承受的惨痛![link widoczny dla zalogowanych] [link widoczny dla zalogowanych] [link widoczny dla zalogowanych]


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