LED vs LCD vs DLP
LED vs LCD vs DLP,how do we choose,here we will compare the advantages and disadvantages of these 3 kinds of displays.When we want a big display, we think of LED, LCD, DLP, all three of which make up a big screen, but they have their own advantages and disadvantages, so they adapt to the use of the occasion.
Table of Contents
What's the LED Display?
As explained by Wikipedia, LED display refers to a flat panel display that uses an array of light emitting diodes as pixels for video display. Their brightness allows them to be used outdoors where they are visible in the sun for store signs and billboards. And it allows for pixel maintenance and unit module replacement, and LEDs have a lifetime of over 100,000 hours.
This article is about light-emitting diode (LED) based displays. For LED-backlit displays, see LED-backlit LCD
What's the LCD?
As explained by Wikipedia, A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly, but instead use a backlight or reflector to produce images in color or monochrome.
What's the DLP?
As explained by wikipedia,Digital Light Processing (DLP) is a set of chipsets based on optical micro-electro-mechanical technology that uses a digital micromirror device. DLP technology is used in DLP front projectors (standalone projection units for classrooms and business primarily), DLP rear projection television sets, and digital signs. It is also used in about 85% of digital cinema projection, and in additive manufacturing as a light source in some printers to cure resins into solid 3D objects.
How do we choose,LED vs LCD vs DLP
After understanding the 3 display technologies, how do we choose? Now let’s compare their advantages and disadvantages from the following 5 technical parameters.
Environmental adaptability of brightness
- DLP\LCD display brightness is not high. Ambient brightness is strictly limited, unsuitable high brightness office or control room environment.
- LED Display brightness could adjust between 600-1500cd， suit for various environments.
Reflective phenomenon
- LCD display the front is equipped with translucent or light guide panel.
- DLP in a practical application， will have a reflective effect.
- LED because it is spontaneous light unit, and dark matte black panel black led lamp surface, so the color expression of any angle can be maintained intact。
View angle compare
Display effect compare
Contrast ratio compare
LED uses a black led lamp; the screen surface is an absorption-type structure. almost no straight line reflected light, so an LED screen contrast ratio as high as 4000:1 makes the LED display screen sharp and clear。
Most DLP projector contrast ratio can be 600:1 to 800:1, and low prices also can be 450：1。LCD projector contrast ratio is about 400:1， and low prices only 250：1.
DLP video wall
DLP on the environment requirements are very high, such as temperature, humidity, dust, light, etc., especially the screen is the most vulnerable, scratch a thin line cannot be erased and repaired, there is more cumbersome is not a period of time it will re-school it, otherwise, the image will automatically offset. DLP’s actual contrast is very low, reflected in the dark scene expressive defects, that is, many images of dark scenes are not clear, and this phenomenon is very obvious. Such as the notebook can see the dark scene, in the DLP screen on the black, cannot distinguish, so when used in monitoring images, the image quality will be significantly reduced. DLP projector weakness only one, that is, the “rainbow effect”, the specific performance is simply separated from the color of the red, green, and blue three monochromes look like rainbow rain.
LCD video wall
The obvious disadvantage of LCD projector is that the black level is poor and the contrast is not very high.The black color of the LCD projector always looks gray, and the shaded part is dark and without details.This is very unsuit for play video, which is not very good for the movie, but it is not big difference with DLP projector when play words.The second drawback is that the effect of LCD projector is display a pixel structure, and the viewer appears to be viewing the image through a lattice. The SVGA (800 x 600) format of the LCD projector, regardless of the size of the screen image, can be seen clearly in the pixel grid unless a higher-resolution product is used. LCD now began to use the microlens array (MLA), which can improve the transmission efficiency of the XGA format of LCD panels, lattice diffusion of pixels, the subtle and not obvious pixel grid, and the sharpness of the images will not bring any influence. It can reduce the pixel structure of the LCD to almost the same as the DLP projectors, but still a bit of a gap.
1.More than10 0000 hours of life time
3.Best color performance
2.Superior heat dissipation performance
4.Low maintenance cost
1.More than10 0000 hours life time
2.Superior heat dissipation performance
- The radiating surface is integrated, aluminum plate structure， Whole body heat conduction heat dissipation, can be the best heat dissipation；
- Flank profile heat dissipation: The heat in the box is scattered from the sides, then connect to the panels, In the back shell on both sides of the formation of the upper and lower channels, the use of air pressure to form the upper and lower air circulation principle, fully heat dissipation.
3.Best color performance
The display principle of RGB spontaneous light retains the authenticity of the color, avoiding the color loss and deviation caused by the material and the light running path in the technology of backlighting and projection.
H · LED – TV is a spontaneous light unit, with a dark matte black bottom panel, and black light bead surface, so that the color performance of any visual angle can be maintained intact.
4.Easy maintenance
Low maintenance cost
- LED standard unit，display panel is composed of smaller units; display pixels are composed of individual LED lamp.
- If there is a necrotic point, replace it with a spare unit and repair an LED lamp；
- If the panel appears unrecoverable, a small display panel can be replaced；
- For example, a 32-inch display area is only 4% of the traditional panel.
- The current mainstream is a 46-inch, 55-inch, and 60-inch splice unit, with a lower proportional cost.
LED no difference after unit repair
- When replace single LED, can choose the LED lamp reserved in production. and the brightness single point correction can be carried out to keep it consistent；
- When replace the unit module, the whole module and panels are used for the consistency correction, so that the color temperature and brightness are consistent with the current state of the project screen.
LCD video wall Big difference after unit repair
- Replacement unit color and brightness are all new state, no attenuation, very uniform and bright；
- And other original units, after long time use, brightness attenuation and screen and other factors, such as the volatilization of the light powder, the color, and brightness have declined sharply；
- There are significant differences in overall visual effects。
Is LED better than LCD DLP?
Through the above text, I believe you have your own answer to LED vs LCD vs DLP. If your budget is loose, LED display will be your best choice. Although the cost is expensive, the visual experience will be better. If you have any other ideas, please contact us, we will give you the best solution according to your needs.
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