Why can LED TVs be as thin as paintings?

The LED adopts a side-entry LED backlight design, which is to place the backlight on the four bezels of the TV, so it can achieve an ultra-thin appearance. And this ultra-thin is also getting thinner and thinner,For example, Samsung09Launched at the beginning of the yearLED TV has millimeters,At this year's CES exhibition,SamsungLuxia LED series TVs are as thick as an astonishing millimeter。 And both the thinnest and average thickness are enough to put Sony and LG to shame.

Samsung's Luxia LED series TVs use Motion Plus technology to make the refresh rate reach 240Hz, and it is also equipped with Samsung's unique backlight technology. Samsung is ready to define the size of the Luxia LED series of TVs in 40 to 55 inches, making it a formidable competitor to plasma TVs.

Because LEDs are very sensitive to the passage of current, a very small current can make him shine, and it has a long life, and can flicker for a long time without damage, so the LEDs used on TVs can be made very small to meet the needs of users.

At present, the ultra-thin LED TVs on the market are basically side light source type,That is, LEDBACKLIGHT is in the frame of the TV,This can make the TV very thin,It is said that Samsung has more than 3 mmLED TV launched,Millimeter level is already the current development trend of LED TV。 The biggest advantage of the side-entry backlight is that it is thin, but the technical problems brought about by it are relatively high, and it is not something that ordinary enterprises can do. Therefore, only Samsung, Sony and other manufacturers can achieve millimeter-level ultra-thin, direct backlight technology is relatively difficult to achieve, and it does not have an ultra-thin appearance, but the picture quality will be better in theory, but with the development of technology, ultra-thin LED will be the trend.

After all, the stunning effect of seeing a TV as thin as a cicada's wings on the wall can impress most consumers.

Because of the application of new technologies and new materials, LCD TVs have entered the millimeter level, and the most visible thing is that LED(light-emitting diode) backlight replaces ordinary CCFL (cold cathode fluorescent tube) backlight,In fact, this is the initiator of the "thin" war.

Unlike CCFL, the LED light source can be placed on the side (CCFL is placed directly behind the LCD glass), that is, the side-emitting backlight, which saves the distance between the front and back (the LED light source can also be placed directly at the back, called a direct LED, this way because the smaller LED tube can save some space, but it is very limited. ）

Side-entry light source, technological innovation.

In fact, the thickness of LED LCD TVs is not thick, and the thickness of LCD panels is about the same, but the space occupied by different backlight modules is different, and the LED backlight panel is thinner than CCFL, so the overall thickness of the LED backlight LCD module is relatively thin.

However,LCD TV is not only a display module,There are also control chips,Signal processing and so on,There is also a power converter that occupies the most volume,To convert220V AC mains power into low-voltage DC used by LCD display,And the power consumption of large-screen LCD TV is relatively high,So the power supply part is correspondingly larger。

Those products that are thick at the bottom are actually thick with various control parts and power conversion parts, and there are only a few parts such as panel modules in the thin upper parts. And some manufacturers have strong design skills,You can evenly distribute each module on the back of the entire LCD TV,The overall effect is relatively thin,Some will also integrate the power module into the base,Then the body above can naturally be made thinner。

However, there are no advantages or disadvantages to these, just the habits of the manufacturer, depending on your preferences.

There is no such thing as the LED above you said, the LED is not the LED below, the LCD panel and the lights and other parts behind are all combined by the packaging factory to make a good module and then ** to the LCD manufacturer, they are all exactly the same thickness, there will be no that, the thickness below is because Sony placed some parts of the display in those places, than, but I took a look at Sony's, and several of the ones I noticed are the same thickness up and down.

In fact, as long as you pay attention to the picture quality, it's good.,After all, this thing is still the most important thing in terms of image quality.。 Those extras, which are popular this year, will be obsolete next year and don't mean much.

This is related to the overall ministry, not half of the LED light and half of the light is not, that is not cost-saving. Relatively speaking, there are two parts of the circuit, which will increase the cost even more, and no one will be stupid like that.

The design principle is different, and the overall thickness of some brands of LEDs is also very thick.

To convert the 220V AC mains into the low-voltage DC used by the LCD monitor, and the power consumption of the large-screen LCD TV is relatively high, so the power supply part is correspondingly volume.