Differences Between OLED and LED?
LED (Light Emitting Diode) and OLED (Organic Light Emitting Diode)
operate along the same principals, but in actuality the way they
function are different. The most basic difference is that each in OLED,
each pixel provides its own illumination, while all of the pixels in an
LCD screen are illuminated by an LED backlight. LED screens are LCD
screens with LEDs in place that backlight the pixels of an LCD, since
they do not emit any illumination of their own.
The three types of LED technology that primarily used are white-edge
LEDs, LED arrays, and dynamic LEDs. White-Edge LEDS are placed around
the edge of the screen. They use a diffusion panel to spread the light
produced by the LEDs evenly behind the screen. LED arrays are arranged
behind the screen and the brightness can’t be controlled individually.
Dynamic LEDs are an array of LEDs controlled either individually or in
clusters so that the LEDs can be dimmed locally to modulate the
backlight light patter
The differences between LED and OLED include illumination methods, price
points, and energy efficiency levels. The main difference between an
LED and OLED screen is that the pixels of an OLED screen are
self-illuminating, whereas the LED are used to light an LCD display.
OLED screen features a wider viewing angle than do LED screens. With
OLED, the colors do not get washed out when viewers watch from extreme
angles. OLED offers the ability to develop lighter and thinner displays
than LED screens do. OLED screens are more energy efficient when
compared to their LED counterparts. LED LCDs and OLED ties in terms of
resolution, lifespan, and burn-in.
You can click on this link for better understanding through Video.
LCD is preferable for light output (brightness), refresh rate and motion
blur, high dynamic range (HDR), expanded color gamut, and energy
consumption. The whole LCD screen can be brighter than LED due to the
backlight. OLED cannot do a full screen as bright, but parts of the
image can be as bright, or brighter, than many LCDs. Refresh rate is
important in reducing motion blur, or the blurring of anything on screen
that moves, which LCD is good for. HDR significantly improves picture
quality. It is an expansion of contrast ratio, an improvement in
brightness, and more. The energy consumption of LCD only varies
depending on the backlight setting. The lower the backlight, the lower
the power consumption. A basic LED LCD with its backlight set low will
draw less power than OLED.
OLED wins in the categories of black level, contrast ratio, viewing
angle, and uniformity. OLED has the ability to turn off individual
pixels completely. It can produce truly perfect black. For contrast
ratio, OLED can get nearly as bright as LCD plus it can produce absolute
black with no blooming. It has the best contrast ratio of any modern
display. For viewing angles, OLED doesn’t have the off-axis issue LCDs
have so its image looks the same even from extreme angles. Uniformity
refers to the consistency of brightness across the screen. LED LCDs
“leak” light from their edges.
