OLED is a hot word in the panel industry in recent years. When it comes to LCD screens, it will talk about OLED screens. But there are still many people who don't know the difference between LCD and OLED. Many people even think that LCD displays are worse than OLED displays, so is this really the case?
We must first understand what is an LCD screen and what is an OLED screen. Only by knowing their light emitting principle and advantages and disadvantages can we know the difference between LCD and OLED and the difference between them.
The 1st difference between lcd and oled is that the light emitting principle is different.
The LCD screen that we generally refer to actually refers to the liquid crystal display, including LED display with LED backlight and LCD display with CCFL backlight. These two types of liquid crystal displays are collectively referred to as LCD display or LCD screen. We know that LCD displays cannot emit light autonomously, while OLEDs can emit light autonomously. This is the biggest difference between the two. The display principle of the LCD screen is that the blue light backlight passes through the red and green and colorless filters, and changes the twist direction of the liquid crystal by voltage to form various colors.
OLEDs are self-luminous and do not require the liquid crystal layer required for LCD screens. OLED is actually like multiple small light bulbs emitting light independently, and each small light bulb can be controlled independently. Therefore, when displaying black, you can turn off the small bulbs. The displayed black is more pure and darker, that is, the contrast of the OLED will be higher than that of the LCD screen.
Due to the different light emitting principles, the display effects of the two are different. Relatively speaking, the picture quality of OLED screens is more uniform, the colors are more saturated, and the response speed is faster.
The 2nd difference between LCD and OLED is that the thickness of the panel is different.
Due to the self-luminous nature of the OLED, a liquid crystal layer is not required, so it can be made thinner and thinner than an LCD display. In the era when mobile phones and TVs are pursuing lighter and thinner, OLED screens have undoubtedly stood at the commanding heights from the beginning.
The 3rd difference between lcd and oled is flexibility.
LCD liquid crystal screens do not have bendable properties because of the existence of a liquid crystal layer, while OLED panels can be bent or even folded. With the change in the appearance of mobile phones now, OLED is obviously more able to meet the market trend. Because of its flexibility, OLEDs are currently widely used in wearable products and mobile phones.
The 4th difference between lcd screen and oled screen is life span.
Because OLED flexible screens emit different colors when they are illuminated, each "small light bulb" emits light at different times. In the long run, the light-emitting unit that has been working for a long time will end sooner than other light-emitting units, that is, the screen will burn Happening. The advantages of LCD screens over OLED displays are reflected here. LCD screens have a longer life than OLED displays.
The 5th difference between an LCD screen and an OLED screen is cost.
LCD panel technology is mature and the cost is lower than that of OLED. OLEDs have only begun to be used in recent years. The cost of OLEDs is high, and OLED panels can only be used for flagship applications. Therefore, high-end mobile phones have OLED panels. Mobile phones with OLED panels are more expensive than LCDs, so it generally gives the impression that OLEDs are better than LCD screens.
Through the comparison of the above LCD screen and OLED screen, the LCD screen is actually not worse than the OLED screen, but has its own advantages and disadvantages. It is the key to choose the right panel according to the needs, but not everyone, and think that OLED must be better than LCD.