Shenzhen Lianchengfa Technology Co., Ltd.

In today's visual display field, DLP (DigitalLightProcessing) and LED (LightEmittingDiode) displays are in the limelight and are widely used in conference rooms, command centres, outdoor advertising, stage performances and many other scenarios. But they are due to technical principles, performance characteristics of different, in practical use has a distinctive difference and their respective advantages in the field. LCF editor will be in this article for you to introduce the technical differences and applications of DLP and LED display.

Technical principle: micro and macro light control way

The core of DLP is a digital micromirror device (DMD), developed by Texas Instruments, the DMD chip is covered with tiny reversible lenses, often in the millions. When working, the light emitted by the colour wheel colour separation, resulting in red, green, blue and other primary colours of light, in turn irradiated by the DMD, the lens based on the input signal to quickly flip, to determine whether the light reflection, the direction of the reflection, so as to accurately modulate the intensity of light, colour, and the combination of image pixels, and ultimately through the lens projected onto the screen, presenting a clear and coherent picture, like a microscopic lens ‘ballet’! Like a microscopic lens ‘ballet’ manipulation of light and shadow.

LED display is based on light-emitting diode light-emitting principle, by the many tiny LED lamp beads densely arranged into a pixel matrix, common table sticker 3 in 1 (red, green, blue three chip package one) and direct insertion lamp bead form. Through the chip to control the current size of the lamp beads, precise adjustment of brightness and colour display, directly converted to visible light energy, from the macro to the many lamp beads collective ‘light’ ‘colour change’ to build a brilliant image, as if with colour blocks to build a picture, each block Each block is a lamp bead.

Picture quality performance: accurate details of the duel colour vibrancy

DLP in the picture quality accuracy had long dominated, especially in the early small-pitch LED is not mature. It is based on DMD microscope fine control, pixel edge sharp, excellent picture uniformity, high grey level, black and white transition is delicate, dark field details are clearly discernible, in the display of complex drawings, data charts and other fine content, the lines are straight and smooth, the text is clear and sharp, no fuzzy, jagged feeling, high-quality video playback can also restore the realistic texture.

LED display screen with technology iteration, colour performance later. Thanks to the advanced encapsulation process, wide colour gamut lamp bead selection, can achieve ultra-wide colour gamut coverage, NTSC colour gamut value easily over 100%, bright and colorful, red and purple intense, green and blue transparent, outdoor glare with high brightness (often up to thousands of nits) advantage, the colour is still eye-catching, in the display of landscapes, fashion advertisements, stage special effects and other heavy colour scenes, to visual impact ‘! Eye-catching’ countless.

Installation and Maintenance: Complex and Fine versus Simple and Flexible

DLP splicing screen by a combination of multiple display units, behind the optical and mechanical structure is complex, installation requires a professional team, fine calibration splicing seam, debugging the consistency of colour and brightness, time-consuming and laborious; daily maintenance relies on professionals, bulb as a consumable has a limited life (thousands of hours), replacement costs and the need for tuning, once the DMD chip faults, maintenance costs are high, long cycle.

LED display modular design is a highlight, the unit board is lightweight and easy to assemble and disassemble, magnetic suction, front maintenance and other ways to make the installation and maintenance is convenient, indoor small pitch LED screen can be quickly spliced, outdoor screen with the help of simple bracket, frame, even if part of the lamp bead is damaged, replace the module is easy, low-cost, does not affect the overall operation, the maintenance of timeliness, downtime is short.

Cost considerations: initial high-end investment and long-term benefit trade-offs

DLP splicing system initial acquisition cost is amazing, high-end brand machine and supporting control equipment, splicing frame and other expenses, high budget requirements, but in the long-term stability of low-load use of the scene (such as high-end conference rooms), low energy consumption, stable picture quality to a certain extent to ease the cost pressure.

LED display initial investment due to a variety of product types more flexible, small spacing high-end models, although not expensive, but ordinary indoor and outdoor screen optional specifications, prices; long-term operation, energy-saving product popularity, low maintenance costs highlight the advantages of outdoor advertising screen, although the brightness of the high energy consumption, but compared to the DLP frequent replacement of bulbs, etc., the cumulative costs over the years is cost-effective, cost-effective and large-scale application of significant.

Application Scenario Adaptation: Indoor Fine Control and Outdoor Wide Area Communication

DLP is the preferred choice for indoor command and control centre due to its fine picture quality and good stability, which helps decision makers to see the complex situation map; high-end conference room can guarantee clear picture for remote collaboration, and teaching and training room can assist in the display of fine courseware. But because of its fear of glare, installation restrictions, difficult to use outdoors.

LED display by virtue of high brightness, colourful, not afraid of the wind and rain, rule the outdoor advertising world, the city's busy shopping areas, traffic arteries giant screen ads eye-catching eye-catching; stage performances for the background screen, with lighting and choreography, with the music of light and shadow, immersive rendering of the atmosphere, the indoor large-scale exhibition halls, stadiums, also by virtue of the flexibility of splicing, large-size show shocking visual effects.

DLP and LED display is like a display technology ‘bijou’, each with unique technology, performance, cost qualities, in the adaptive scene shine. With the development of science and technology, the two also continue to integrate and innovate, complement each other's strengths and weaknesses, and continue to broaden the boundaries of the visual display, for the dissemination of information and visual enjoyment of inexhaustible power.

The above is the LCF editorial to put together the DLP and LED display technology differences and applications, I hope to help you, and welcome you to add or correct.LCF is a collection of R & D, intellectual, sales, operation, service in one of the national speciality and new small giant enterprises, national high-tech enterprises. If you need to buy LED electronic display friends can also directly contact the LED display manufacturer LCF, the big country brand, trustworthy!