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什麼是AMOLED顯示器?

您第一次接觸AMOLED技術可能是幾年前的高端智能手機,它有望提供更大,色彩更豐富的顯示屏。現在您將聽到有關AMOLED筆記本電腦屏幕和PC 顯示器的信息。但是什麼是AMOLED?如何使屏幕觀看效果更好?

AMOLED顯示屏經常被提及的優點-它們可以逐像素工作,產生更亮的顏色(以及更深,接近完美的黑色),消耗的功率更少,並且比傳統的LED型號更薄更輕-有助於推動LED的出現。我們今天知道的更大的掌上型手機屏幕。隨著消費者對該技術的興趣增加,筆記本電腦製造商已經響應了基於高分辨率,基於AMOLED的新型型號。例如,在CES 2019上,聯想宣布了一款新的2合1 Yoga C730筆記本電腦的計劃,該筆記本電腦帶有15.6英寸4K AMOLED顯示屏。

AMOLED解釋

那麼,什麼是AMOLED屏幕?要了解AMOLED,您首先需要對OLED,LED和TFT有一點了解。困惑?不用了 繼續閱讀。

在傳統的LED-LCD顯示器中,內部的白色LED僅用於對正面LCD面板進行背光照明,在該面板上會產生顏色和/或調暗光線以控制屏幕上看到的內容。因此,您看到的內容取決於LED的相對亮度和LCD面板的光影響質量(例如,添加或減去LED光線以使整個屏幕變亮或變暗,或者應用或多或少的LCD效果來做到這一點)。像素的特定區域)。

OLED通過在不同種類的半導體材料上施加電流來產生光,從而對傳統LED進行了改進-有機化合物以如此小的規模工作,因此可以實現逐像素照明和色彩控制。顯示器中的每個像素可以變亮或變暗(或完全不顯示任何功率,完全變成“黑色”)。結果是非常精細的光線和色彩控制以及極高的對比度,而無需插入LCD面板。 [根據製造商的不同,所看到的每個像素的顏色是通過RGB濾光片發出單色OLED光(如常規LED-LCD型號)或使用已知可產生特定波長的不同有機化合物(顏色)產生的。 。]

反過來,通過引入薄膜晶體管(TFT)層,AMOLED可以改善對大型電視,顯示器和筆記本電腦顯示器的基本OLED技術,從而可以更好地控制OLED發出的光。如果TFT聽起來很熟悉,那是因為該技術-將電流控制晶體管專用於每個像素-在傳統的LED LCD顯示器中也很重要。TFT層提供了增強的光控制“有源矩陣”,從而解決了AMOLED中的“ AM”問題(儘管要注意的是,即使僅標記為“ OLED”的顯示器也可能具有某種有源矩陣;但這並非如此)總是提到)。

AMOLED顯示器的優勢

AMOLED顯示器比常規的LED-LCD屏幕具有多個優點,並且也具有一些明顯的缺點。這是AMOLED屏幕的優缺點的簡要介紹。

AMOLED顯示器的優點

AMOLED屏幕的滿意用戶指出了許多優點:

  • 通過直接逐像素照明控制,獲得更多色彩和更真實的色彩再現
  • 更高的對比度(即屏幕最亮和最暗部分之間的差異)
  • 減少能量消耗,尤其是在顯示黑暗場景(如PC遊戲中常見的場景)時
  • 更薄,更輕的結構,沒有傳統的LCD面板或(某些型號)背光
  • 較寬的視角(沒有LCD“阻擋”某些光線,這往往會限制側視圖)

AMOLED顯示器的缺點

儘管它們越來越受歡迎,但AMOLED屏幕仍有一些缺點:

  • 更高的成本: 在撰寫本文時,製造大型AMOLED顯示器要比常規的LED-LCD顯示器貴得多,從而將AMOLED限於高端筆記本電腦(目前)。但是PC製造商表示價格會隨著時間下降。
  • 壽命較短:某些導致特定OLED顏色的有機化合物失去發光能力的速度比LED-LCD屏幕中的無機化合物快。為了解決這個問題,製造商正在尋找使用更多持久的OLED顏色,同時使用RGB或類似濾鏡實現其他色調的方法。
  • 可能的烙印: 直接逐像素照明的一個負面方面是某些OLED的使用量增加,並且其性能會隨著時間的流逝而降低,從而在普通,非常明亮的屏幕元素(導航欄等)處產生烙印效果。 )永遠不會完全消失。為了解決這個問題,許多AMOLED顯示器製造商都引入了一些功能,可以在檢測到長時間的亮度區域時自動對屏幕的部分進行調光。

憑藉其改進的色彩準確性和亮度,不難理解為什麼這些顯示器迅速超越了AMOLED手機的領域,而迅速進入可能更大的筆記本電腦和PC顯示器市場。隨著製造商更多地了解消費者對AMOLED的偏好並開發新的方法來延長顯示器的使用壽命,這種趨勢有望繼續。

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