第一千六百八四章 数字供电调光技术
顶点小说(dingdian666.com)更新快，无弹窗！
啊，让人都不太有兴趣。不过这奥尔森的话题是贾鸿渐一定有兴趣的，因为他是这么说的：“我在考虑怎么改进一下显示器亮度调节方法……”
好吧，技术派老头儿这么短短的一句话，就把贾鸿渐的注意力给吸引了，毕竟这显示器现在可变电阻发热也是个大问题啊！现在的显示器按照老头儿们的测试，光是可变电阻加fl灯管的发热，那动不动就能到40多度的！这就跟小暖器一样了！这玩意儿要是到了夏天，配合上一体机狭小的空间……嘶，那真是“妈妈再也不用担心我冬天冻手了”！
就在此时，只听着老头儿说道，“我打算应用数字供电技术，也就是所谓的pwm调光技术……总的来说，也就是通过短时间，比如一秒之内让芯片控制灯管上千次的开合关来控制整体亮度。比如说。一秒钟内这灯管开1000次就算是100%的亮度的话，那么如果我们让灯管在一秒内开500次，那是不是就是对半亮度了？因为这荧光灯管身还是有余晖的，所以两次开灯管之间并不会有太强烈的明暗对比，可以相对顺滑的过度，当然了，这样一来亮度就不会是正好下降到50%。不过也会下降一些，而且人眼也觉察不出来……”
恩！这个技术贾鸿渐懂！前世贾鸿渐玩儿diy烧硬件的时候，最讨厌的就是pwm调光方式，因为这种方式配上了led显示屏，那简直就能闪瞎人的狗眼！没错！那led和数字调光，在后世都是作为高新科技代替fl这样的所谓lcd显示器的。但是很多消费者并不知道，其fl和模拟调光那才真是对眼睛好一些的！led这玩意儿虽然亮，但是没有余晖，就是说不像是日光灯管关了以后还会稍微亮那么一会儿！于是，这led配合上了每秒钟狂开狂关开关的pwm调光之后，那液晶屏其实就是在不断的闪！这种闪吧，个别皮糙肉厚反应慢的。那可能觉得看不出俩，但是贾鸿渐细皮嫩肉的，那眼睛真看的出来闪！而且用久了led显示屏吧，他眼睛就觉得难受！最后迫不得已，把他27寸的巨大显示屏让给了别人，然后自己去市场上买了一个老fl灯管的19寸液晶屏……以为这是后退？才不是！贾鸿渐买的那是日艺卓的产品！专业货色！当年艺卓在别人都转向led的时候，他们还在坚fl！
这样一个19寸液晶屏多钱？5000块人民币！还不打折！价钱跟贾鸿渐那27寸的差不多了！没错！后世那真正高端的专业的产品，用的还fl！而led那就是廉价的伤害老百姓眼睛的！根就不是什么高科技。纯粹是因为fl便宜才被采用的！
听着老头儿的说法，他这就是要采用pwm调光了！不过按照老头儿说的荧光灯的余晖效应，应该不至于闪瞎消费者的狗眼吧？具体这事儿还是要把闪的频率订的尽量高点，闪的次数太少的话，怎么都会瞎狗眼的！所以贾鸿渐此时就说到，“要不这样吧，低亮度的时候。比如低过了30%，这时候pwm调光应该就比较闪了？我们能不能做成这个时候转换成dc调光？也就是直流直接通过可变电阻调光？这样总的来说不至于闪瞎了消费者的眼睛吧？”
“恩，我就是想这么干的。我们的产品是瞄准了专业级别的民用高品质产品，怎么可能做的那么低水平。”谁知道老头儿听了贾鸿渐的建议之后。非常平淡的点了点头。尼玛真心有一种高人的风范啊，有木有？
看着老头儿头都不抬，不停的吃饭的样子，贾鸿渐撇了撇嘴，“对了，这个pwm……没有专利吧？我们能注册专利么？”“注册不了，这玩意儿早就应用开了，虽然还没人应用在液晶屏上。再说了就算注册了专利……我们其他很多无线接口都放开了，这不是开放和封闭冲突了么？”老头继续头也不抬的说道。
唔……这倒是，那就不注册专利了吧，贾鸿渐想到。这样一来，如此设计就可以变成第二代的一体机，然后整体发热就可以减少一些，最好他贾鸿渐还要帮忙设计一下散热什么的，甚至还要做做流体实验，改善一下下一代产品热量堆积的问题……(未完待续。)
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