There are many factors to consider, but the process often begins with one major question: What kind of TV should you get? These panels are typically composed of two sheets of polarizing material with a liquid crystal solution between them. Think of it as a shutter, either allowing light to pass through or blocking it out. Each of these illumination technologies is different from one another in important ways. CCFL backlighting is an older, now-abandoned form of display technology in which a series of cold cathode lamps sit across the inside of the TV behind the LCD.
The lights illuminate the crystals fairly evenly, which means all regions of the picture will have similar brightness levels.
This affects some aspects of picture quality, which we discuss in more detail below. Full-array backlighting swaps the outdated CCFLs for an array of LEDs spanning the back of the screen, comprising zones of LEDs that can be lit or dimmed in a process called local dimming. While there are some drawbacks to edge lighting compared to full-array or direct backlight displays, the upshot is edge lighting that allows manufacturers to make thinner TVs that cost less to manufacture.
When you're shopping for a new TV, these are the sets you'll come across most often. LCD stands for liquid crystal display. The liquid crystals block or allow light to pass through them.
The different colours and brightness levels created by the liquid crystals and various filters become the picture on the screen. The liquid crystals don't create light, though; that job falls to the backlight. LED stands for light-emitting diode, and these make up the backlights of some TVs.
However, monitors have changed since then. This turns a single monitor into a modular assortment of countless light-emitting diodes. Additionally, this expands how big the monitor can be without blowing up the cost exponentially. The quality of direct-view LED screens is measured by pixel pitch.
The pixel pitch is the distance between two adjacent LEDs on the display. The smaller the pixel pitch, the better the quality of the image. Let us go through these factors one by one and understand which technology wins in each criterion:. The difference in power consumption increases as the size of the display increases. Light-emitting diodes are considerably smaller than fluorescent lamps used in LCD monitors.
Fluorescent lamps have a considerable thickness, but the thickness of diodes is next to none. However, direct-view LEDs offer a better angle for viewing than LCDs as the light source is evenly spread on the screen.
This is the time it takes to shift from one colour to another. Response times are generally measured in milliseconds ms. The shorter the time to respond, the better the quality of the images produced. There are also small, inexpensive p and even p resolution LCDs. There are no p or lower resolution OLEDs currently on the market.
Refresh rate is important in reducing motion blur , or the blurring of anything on screen that moves including the whole image if the camera pans. Cheaper LCDs are 60Hz. Keep in mind, most companies use numbers that are higher than their "true" refresh rate. One of the main downsides of LCD TVs is a change in picture quality if you sit away from dead center as in, off to the sides.
How much this matters to you certainly depends on your seating arrangement, but also on how much you love your loved ones. So if you have a wide seating area, OLED is the better option. It has brighter highlights and typically a wider color gamut. Its superior contrast and lack of blooming win the day despite LCD's brightness advantage. The smallest triangle circles at corners is what your current HDTV can do.
The next largest squares is P3 color. The largest triangle edges is Rec It's an expansion of the colors possible on "standard" TVs.
Think richer, deeper and more vibrant colors. Uniformity refers to the consistency of brightness across the screen. Many LCDs are pretty terrible with this, "leaking" light from their edges.
This can be distracting, especially during darker movies. OLED's energy consumption is directly related to screen brightness. The brighter the screen, the more power it draws.
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