FLICKER
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lcd屏的gamma曲线和flicker现象的同步矫正方法技术对于LCD屏幕来说,gamma曲线是调节显示亮度和色彩的重要参数之一。
而flicker现象是指显示屏在刷新过程中出现的闪烁效应。
为了提高显示质量和用户体验,需要对LCD屏幕的gamma曲线和flicker 现象进行同步矫正。
首先,gamma曲线是用来调整LCD屏幕的亮度和色彩表现的一种方法。
通常,gamma曲线是非线性的,因为人眼对亮度的感知并不是线性的。
通过调整gamma曲线,可以改变显示屏的亮度和对比度,使图像显示更加准确和自然。
然而,gamma曲线也会对色彩表现产生影响。
当gamma值设置不合理时,可能会导致颜色偏色或过饱和的问题。
因此,对于LCD屏幕的gamma曲线进行矫正是十分重要的。
一种常见的gamma曲线矫正方法是G2G校正法。
该方法通过测量显示屏的灰度响应曲线,根据测量结果来矫正gamma曲线。
具体步骤如下:1.测量:通过专业的测量设备对显示屏进行灰度响应测试,获取不同亮度下的显示效果和对应的gamma值。
2.分析:根据测量结果,分析显示屏的gamma曲线偏差程度和变化规律,确定需要进行哪些调整。
3.矫正:根据分析结果,对显示屏的gamma曲线进行调整。
可以通过软件或硬件方式来实现矫正,比如修改驱动程序或调整显示屏的设置。
4.验证:对矫正后的显示屏进行再次测量,检验调整结果是否符合预期。
另外,为了解决LCD屏幕的flicker现象,可以采取以下同步矫正方法技术:1.刷新率提升:增加显示屏的刷新率可以减少闪烁效应。
传统LCD 屏幕的刷新率通常为60Hz,而提高到120Hz或以上可以明显降低闪烁感。
2. PWM控制:PWM(Pulse Width Modulation)是一种常用的调节显示屏亮度的技术。
通过调节PWM信号的占空比,可以实现不同亮度的显示。
然而,一些低频率的PWM控制会引起闪烁现象,因此需要采用适当的PWM频率和占空比。
Dazzle, flash, flicker, glare, gleam, glimmer, glint, glitter, glisten, glister, glow, beam, shimmer, shine, sparkle, twinkle, wink以上单词都有"发光"的意思,在实际运用中有的相互间差别很大,有的很难区分。
本文拟浅议以上"发光"词的准确用法。
flicker一词正是"发出微光",指"光线很弱好似微微晃动一样"。
由这个词我立即想到glitter, glow, gleam等同类词,再一回忆又想出了若干,最后借助thesaurus得出了以下英文词汇发光列表:2. flash: to shine suddenly and brightly for a short time, or to make something shine in this way; If a light flashes or if you flash a light, it shines with a sudden bright light, especially as quick, regular flashes of light. 例:Lightning flashed overhead.Flash是快速地发出强光,意为"闪光",是闪光一族的普通意义,后文还有多个闪光词汇。
3. flicker: to burn or shine with an unsteady light that goes on and off quickly; If a light or flame flickers, it shines unsteadily. 例:The overhead lights flickered momentarily.Flicker也是闪光,但是与flash闪得不同。
英文动词、形容词非常丰富,表达同一概念往往有很多词,相互之间又有细微差别(nuances),正确掌握这些细微差别,传情达意便可做到准确而不做作,创造出"增之一分则太多,减之一分又嫌少"的艺术效果,令文章华彩乍现,璀璨夺目。
周二晚在交大与学子谈英语时,提到flicker一词,我告诉大家这个词我是在学唱Casablanca这首英文歌时学会的,一看到flickering light我便想起歌中男女恋人相拥着坐在汽车里,开着天窗,透过挡风玻璃看电影的情景。
前方银幕上变幻的画面,让反射到车里的光线时明时暗,变幻莫测。
歌手痴情的双眼久久地凝视着女朋友姣好的面颊,熟悉的面容时而艳若桃李,时而白如凝脂,时而像丝缎般光滑,时而又像披上了一层淡淡的薄纱。
清凉的微风从天窗中吹进来,轻柔地抚摸着这对恋人,银色的月光从天际倾泻而下,四周灯光摇曳,月光也欢腾起来,银幕上传来的光线和四周的灯光变幻交织,与迷人的月色融在了一起,伴随着浪漫的电影情节,在车里流淌着,婉转着。
此情此景,试问天下还有谁能安坐?于是歌手唱到:...making love on the long, hot summer's night。
是夜星光灿烂,是夜缠缠绵绵,星月为媒,天地为证,歌中情侣的爱情在月光下升华,汽车旅馆在月光中融化……flicker一词正是"发出微光",指"光线很弱好似微微晃动一样"。
由这个词我立即想到glitter, glow, gleam等同类词,再一回忆又想出了若干,最后借助thesaurus得出了以下英文词汇发光列表:Dazzle, flash, flicker, glare, gleam, glimmer, glint,glitter, glisten, glister, glow, beam, shimmer, shine,sparkle, twinkle, wink以上单词都有"发光"的意思,在实际运用中有的相互间差别很大,有的很难区分。
glare, flare, flash, gleam, glitter 这5个词做“闪光”解时的区别1.glimpse主要是指“看、一瞥”而不是主要指“闪光”,glimpse指“闪光”已经是古语(Archaic 【古语】A brief flash of light.闪光短暂的闪光)的用法,会出现在古诗和古散文中2.glare既可指“瞪眼”也可指“强光”3.sparkle即可指“(迸发)火星”也可指(酒等的)气泡4.glow即可指“强光”也可指“鲜艳夺目的颜色、红润的脸色”等,意义中只表示“闪光”的很少,你可以结合它们的引申义来记住这些单词,5.glare,被人“瞪眼”的时候就感觉仿佛被“强光”照射一般令人不自在,试比较:the glare of the footlights 舞台上耀眼的灯光;in the full glare of publicity 非常显眼,在众目睽睽之下。
--------glare指太阳等发强光The sun glared out of the blue skyGleam 指月亮等发微光The moon gleamed on the lakeGlitter 指珠宝,星辰闪光Glow指(熔铁)发“灼光”Flash 闪光Flare闪耀,闪烁Blink 眨眼,闪亮Shine照耀,发光Spark 流露;显露A small amount of a feeling or quality that can be noticed someone’s express ion or behaviourEg Meg’s eyes lacks their usual spark of humourHis eyes sparked with anger. (他的双眼射出怒火闪闪发光”。
)辨析glisten, glimmer, flicker,glitter,sparkle,twinkle具体用法如下(包括其他发光词):1. dazzle: If a very bright light dazzles you, it stops you from seeing properly fora short time.Dazzle是"刺眼、晃眼"的意思,特别当光线照得人短时间看不清物体时使用,与下文其他的"刺眼"选手颇有区别。
Flash, Flicker, Gleam, Glimmer, Glint, Glitter, Glisten, Glister, Glow, Shimmer, Sparkle, Twinkle及其它同类词的辨析1. dazzle: If a very bright light dazzles you, itstops you from seeing properly for a short time.例:a deer dazzled by the headlightsDazzle是"刺眼、晃眼"的意思,特别当光线照得人短时间看不清物体时使用,与下文其他的"刺眼"选手颇有区别。
2. flash: to shine suddenly and brightly for a shorttime, or to make something shine in this way; If alight flashes or if you flash a light, it shines with asudden bright light, especially as quick, regularflashes of light.例:Lightning flashed overhead.Flash是快速地发出强光,意为"闪光",是闪光一族的普通意义,后文还有多个闪光词汇。
3. flicker: to burn or shine with an unsteady lightthat goes on and off quickly; If a light or flameflickers, it shines unsteadily.例:The overhead lights flickered momentarily.Flicker也是闪光,但是与flash闪得不同。
Flicker Free参数什么是Flicker Free参数?Flicker Free参数是指一种电子设备的功能,旨在消除屏幕闪烁。
屏幕闪烁是指显示器在刷新率低于人眼可察觉的范围内频繁地快速变化亮度的现象。
这种闪烁可能会引起眼睛疲劳、头痛和视觉不适等问题。
为了提供更加舒适和健康的视觉体验,许多电子设备制造商已经开始采用Flicker Free参数。
Flicker Free参数的原理Flicker Free参数通过提高显示器的刷新率来消除屏幕闪烁。
传统显示器的刷新率通常为60Hz,即每秒刷新60次。
这意味着显示器每秒将图像更新60次,并在每次更新之间产生黑屏时间。
人眼对于这种快速亮度变化非常敏感,因此会感到闪烁。
而具有Flicker Free参数的显示器使用更高的刷新率,通常为120Hz或以上。
这意味着它每秒可以更新图像120次以上,减少了黑屏时间,并且使得亮度变化更加平滑和连续。
由于人眼较难察觉高刷新率下的亮度变化,因此Flicker Free参数可以有效消除屏幕闪烁。
Flicker Free参数的优势1.提供更舒适的视觉体验:使用具有Flicker Free参数的显示器可以减少眼睛疲劳、头痛和视觉不适等问题。
这对于长时间使用电子设备的人来说尤其重要,如程序员、设计师和游戏玩家等。
2.改善阅读体验:在阅读长篇文章或电子书时,屏幕闪烁可能会分散注意力并降低阅读效果。
具有Flicker Free参数的显示器可以提供更稳定、平滑的显示效果,使阅读更加舒适和愉快。
3.适用于敏感群体:一些人对屏幕闪烁特别敏感,甚至可能引发偏头痛或其他身体不适。
对于这些敏感群体来说,具有Flicker Free参数的显示器是一种必需品,可以极大地改善他们的生活质量。
4.提高工作效率:屏幕闪烁可能会导致眼睛疲劳和注意力分散,从而降低工作效率。
使用具有Flicker Free参数的显示器可以减少这些问题,使用户能够更长时间地集中注意力并提高工作效率。
Flicker 最大允许最大允许接入接入接入阻抗计算阻抗计算EN 61000-3-3Equipment which does not comply with the limits of this part of IEC 61000 when tested with the reference impedance Zref of 6.4, and which therefore cannot be declared compliant with this part, may be retested or evaluated to show conformity with IEC 61000-3-11. Part 3-11 is applicable to equipment with rated input current ≦75 A per phase and subject to conditional connection.6.4 Reference impedanceFor equipment under test the reference impedance, Zref, according to IEC 60725, is a conventional impedance used in the calculation and measurement of the relative voltage change “d”, and the Pst and Plt values. The impedance values of the various elements are given in Figure 1.以单相为例:Zref=22)()(N A N A X X R R +++=22)10.015.0()16.024.0(+++=0.472ΩEN 61000-3-11This part of IEC 61000 is also applicable to equipment within the scope of IEC 61000-3-3 that does not meet the limits when tested or evaluated with reference impedance Z ref and is therefore subject to conditional connection. Equipment which meets the requirements of IEC 61000-3-3, is excluded from this part of IEC 61000.3.3conditional connectionconnection of equipment which requires the user’s supply at the interface point to have an impedance lower than the reference impedance Z ref in order that the equipment emissions comply with the limits in this standardNOTE Meeting the voltage change limits is not the only condition for connection; emission limits for other phenomena such as harmonics, may also have to be satisfied.4 RequirementsIf equipment complies with the requirements of IEC 61000-3-3 and therefore is not subject to conditional connection, it may be declared so by the manufacturer in documentation made available to users before purchase.Equipment which does not meet the limits of IEC 61000-3-3, when tested or evaluated with reference impedance Z ref, is subject to conditional connection, and the manufacturer shall either:a) determine the maximum permissible system impedance Z max at the interface point of the user’s supply in accordance with 6.2, declare Z max in the equipment instruction manual and instruct the user to determine in consultation with the supply authority, if necessary, that the equipment is connected only to a supply of that impedance or less, orb) test the equipment in accordance with 6.3 and declare in the equipment instruction manual that the equipment is intended for use only in premises having a service current capacity≥100 A per phase, supplied from a distribution network having a nominal voltage of400/230 V, and instruct the user to determine in consultation with the supply authority, if necessary, that the service current capacity at the interface point is sufficient for the equipment.The equipment shall be clearly marked as being suitable for use only in premises having a service current capacity equal to or greater than 100 A per phase.(service current capacity ≥100 A per phase 指供电电网能够提供超过100A的电流负荷的定义如下::3.4 service current capacity的定义如下the current per phase which can be taken continuously by the user at the interface point without exceeding the plant ratings used by the supply authority in the design of its system NOTE In practice the service current capacity is the rating of the main service fuse or overcurrent protectionsetting of the circuit breaker at the interface point. In cases where supply authorities declare supply capacities involt-amperes, the current per phase may be deduced for single phase supplies by dividing the volt-amperes by the declared phase voltage, and for three-phase supplies by dividing it by √3 times the declared line voltage.)6.2 Evaluation and declaration by the manufacturer of the maximum permissible system impedanceIn the calculations described in the following sub-clauses , the modulus values of complex impedances shall be used.(应用复阻抗的模值进行运算)6.2.1 Comparison of calculated and measured emission values with clause 5 limits to enable a declaration of compliance with IEC 61000-3-3If all values calculated according to 6.1.3, or measured in accordance with IEC 61000-3-3, are less than or equal to the limits in clause 5, the manufacturer may declare that "the product meets the technical requirements of IEC 61000-3-3".6.2.2 Calculation of the maximum permissible system impedanceThe following evaluation procedure shall be applied if the equipment emissions cannot meet the technical requirements of IEC 61000-3-3 and therefore the equipment cannot be declared compliant by the manufacturer in accordance with 6.2.1. In such a case the equipment shall only be connected to a supply having a system impedance lower than Z ref .To calculate the lower system impedance, Z sys , the values of d c , d max , P st and P lt calculated according to 6.1.3 shall be used in the following formulae. For manual switching:如果如果仪器的测试阻抗为仪器的测试阻抗为Zref, 则d c , d max , P st and P lt 就是相应的测试值是相应的测试值。
flicker 英文诗歌In the darkness of the night,Stars shine with their gentle light.But amidst the celestial glow,There's another flicker that starts to show.It's not the stars in the sky,But the flicker in your eye.A glimmer of hope, a spark of joy,That embraces every girl and boy.Flicker, flicker, in the deepest blue,You bring happiness, always true.With every blink, you ignite a flame,Filling our hearts with love's sweet name.In the chaos of this world we're in,Your flicker is a soothing hymn.A melody that brings us peace,A moment of calm that will never cease.Flicker, flicker, forever bright,Guiding us through both day and night.In times of sorrow, you bring solace,In times of darkness, you provide grace.Your gentle dance, like a ballet,Leads us through life, come what may.With each flicker, we find our way,Towards a brighter, better day.So let your light continue to shine,Flicker on, oh flame divine.Illuminate our souls, oh flicker so fair,With your beauty, beyond compare.In this world of chaos and strife,Your flicker brings us back to life.A symbol of hope, a beacon of light,Flicker on, in the darkest night.Note: This document is a work of fiction and solely created for the purpose of demonstrating the writing skills of the AI language model.。
Flash, Flicker, Gleam, Glimmer, Glint, Glitter, Glisten, Glister, Glow, Shimmer, Sparkle, Twinkle及其它同类词的辨析1. dazzle: If a very bright light dazzles you, itstops you from seeing properly for a short time.例:a deer dazzled by the headlightsDazzle是"刺眼、晃眼"的意思,特别当光线照得人短时间看不清物体时使用,与下文其他的"刺眼"选手颇有区别。
2. flash: to shine suddenly and brightly for a shorttime, or to make something shine in this way; If alight flashes or if you flash a light, it shines with asudden bright light, especially as quick, regularflashes of light.例:Lightning flashed overhead.Flash是快速地发出强光,意为"闪光",是闪光一族的普通意义,后文还有多个闪光词汇。
3. flicker: to burn or shine with an unsteady lightthat goes on and off quickly; If a light or flameflickers, it shines unsteadily.例:The overhead lights flickered momentarily.Flicker也是闪光,但是与flash闪得不同。