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They may sound similar, but the differences between the three are quite stark.LED panels:LEDs are sore similar to LCD screens. However, instead of using fluorescent tubes as is the case with LCD TVs, the displays use "light emitting diodes." This makes LED TVs thinner and lighter than LCD TVs and with a much brighter energy-efficient screen.

OLED panels:OLED stands for "organic light-emitting diodes." These displays use organic materials that emit light when powered. The organic diodes allow the screens to have sharp colors and deep contrasts with very bright whites and dark blacks. Since the materials function as their own light source, backlighting isn"t necessary. This allows OLED TVs to be ultra-thin.

QLED panels:QLED screens utilize "quantum dots" for exceptional color. The technology features very tiny microscopic crystals resulting in high contrast ratios.

Samsung TVs feature LED, OLED and QLED displays as well as Plasma and LCD displays in much older sets. Before making a choice, there are a number of considerations you should make.Size:Your display panel choice is likely to be guided by the TV size you are looking for. While QLED and OLED displays are popular, they are only available in larger sizes. LED displays, on the other hand, offer a wide selection and are available for multiple size options.

Power consumption:The newer generation display panels come with energy efficiency in mind. LCDs are more energy consuming than LED with OLED and QLED panels using the least power.

Flat-panel displays are thin panels of glass or plastic used for electronically displaying text, images, or video. Liquid crystal displays (LCD), OLED (organic light emitting diode) and microLED displays are not quite the same; since LCD uses a liquid crystal that reacts to an electric current blocking light or allowing it to pass through the panel, whereas OLED/microLED displays consist of electroluminescent organic/inorganic materials that generate light when a current is passed through the material. LCD, OLED and microLED displays are driven using LTPS, IGZO, LTPO, and A-Si TFT transistor technologies as their backplane using ITO to supply current to the transistors and in turn to the liquid crystal or electroluminescent material. Segment and passive OLED and LCD displays do not use a backplane but use indium tin oxide (ITO), a transparent conductive material, to pass current to the electroluminescent material or liquid crystal. In LCDs, there is an even layer of liquid crystal throughout the panel whereas an OLED display has the electroluminescent material only where it is meant to light up. OLEDs, LCDs and microLEDs can be made flexible and transparent, but LCDs require a backlight because they cannot emit light on their own like OLEDs and microLEDs.

Liquid-crystal display (or LCD) is a thin, flat panel used for electronically displaying information such as text, images, and moving pictures. They are usually made of glass but they can also be made out of plastic. Some manufacturers make transparent LCD panels and special sequential color segment LCDs that have higher than usual refresh rates and an RGB backlight. The backlight is synchronized with the display so that the colors will show up as needed. The list of LCD manufacturers:

Organic light emitting diode (or OLED displays) is a thin, flat panel made of glass or plastic used for electronically displaying information such as text, images, and moving pictures. OLED panels can also take the shape of a light panel, where red, green and blue light emitting materials are stacked to create a white light panel. OLED displays can also be made transparent and/or flexible and these transparent panels are available on the market and are widely used in smartphones with under-display optical fingerprint sensors. LCD and OLED displays are available in different shapes, the most prominent of which is a circular display, which is used in smartwatches. The list of OLED display manufacturers:

MicroLED displays is an emerging flat-panel display technology consisting of arrays of microscopic LEDs forming the individual pixel elements. Like OLED, microLED offers infinite contrast ratio, but unlike OLED, microLED is immune to screen burn-in, and consumes less power while having higher light output, as it uses LEDs instead of organic electroluminescent materials, The list of MicroLED display manufacturers:

LCDs are made in a glass substrate. For OLED, the substrate can also be plastic. The size of the substrates are specified in generations, with each generation using a larger substrate. For example, a 4th generation substrate is larger in size than a 3rd generation substrate. A larger substrate allows for more panels to be cut from a single substrate, or for larger panels to be made, akin to increasing wafer sizes in the semiconductor industry.

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In the end, Sony agreed to pay half of the $1,400 repair to replace the panel. The service tech, a Sony gold standard place, says the set is defective.

A T-con board — short for “timing control board” or “timing controller” — is found in LED and LCD TVs. This board converts the video signal from the main board and sends it directly to the screen to display the signal in the correct order and at the correct spot on the screen.