What is the Difference Between TFT LCD and OLED?

TFT (thin film transistor) is the abbreviation of thin film transistor, but actually refers to thin film transistor (color active matrix), which can “actively” control each independent pixel on the screen, Each pixel is divided into RED, GREEN, BLUE dots which are arranged in vertical stripe, which is the origin of the so-called color active matrix TFT.
TFT LCD display is the mainstream display device in all kinds of notebook computers and desktop computers. Such as 13 inch to 15.6 inch usual laptop screen, and some industrial lcd screen 7 inch, 8 inch and 10.1 inch.
TFT display has the advantages of high response, high brightness, high contrast and so on.
TFT LCD need LED backlight.

OLED, namely organic light emitting diode, also known as organic electroluminesence display (OELD)
The basic structure of OLED is composed of a thin and transparent indium tin oxide (ITO) with semiconductor characteristics, which is connected with the positive pole of power, plus another metal cathode, which is wrapped into a sandwich structure. The whole structure layer includes hole transport layer (HTL), light emitting layer (EL) and electron transport layer (ETL). When the power is supplied to an appropriate voltage, the positive hole and the cathode charge will be combined in the light-emitting layer to produce light.
OLED is characterized by its own light, unlike TFT LCD, which requires backlight.
Thus it has high visibility and brightness. Secondly, it has low voltage demand, high power saving efficiency, fast response, light weight, thin thickness, simple structure and low cost, but micro OLED cost is high.


The Difference of TFT LCD and OLED

  1. OLED has self illumination, TFT LCD need LED backlight;
  2. Because LCD has a backlight layer, black is not pure black, so it is difficult to improve the contrast. OLED black does not emit light, so you can directly close the pixels in the black area, so it is basically pure black;
  3. TFT LCD is thicker than OLED due to the existence of backlight layer and liquid crystal layer;
  4. Bendability: TFT LCD cannot be bended greatly, while OLED can be folded almost as casually as origami;
  5. Light up separately: each pixel of OLED is independent, so some pixels can be lit up separately. When LCD is turned on, the whole backlight is turned on, and cannot be lit up alone;
  6. Burning: Since each pixel of OLED is self luminous, rather than the whole LCD is bright, this will lead to different working time of each pixel of OLED, and the lifetime of pixels that work for a long time will decay faster, so OLED display is very prone to a phenomenon that is burning screen;



RJOYTEK, which a LCD module custom and manufacturer in Shenzhen, China. We have obtained different Tech Patent-Certificate and ISO9001 Certification, obtained the national high-tech enterprise and Shenzhen high-tech enterprise certificate. We maintain close cooperation with AUO, BOE, Lnnolux, LG, Panda, Sharp and so on.

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If there is no good solution in the LCD display module industry, everything will become very expensive. We hope to use simple methods to reduce costs for customers, so that every customer can get a cheap and simple LCD display module solution. Our mission is to provide customers with one-stop LCD display solutions. We provide various solutions, including customized product sizes, touch solutions for various touch-free TFT displays module, driver boards and adapter boards for various displays, so as to achieve the solutions that you want to connect item. We also provide customized services for various interfaces.



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