Which display is better, liquid crystal display or LED display?

LCD and LED are two different display technologies. LCD is a liquid crystal display screen, while LED is a light-emitting diode display.

P3.91 Indoor Rental Led Display

The advantages of LED display screen:

1. Self luminescence, power saving in the dark, light power consumption. Black places are not luminous.

2. The color is brighter.

3. It is a source of light, so there is basically no problem of finding the screen darker after long days. 4. The quality is also better. The failure of the led display screen is small.

5. In the presence of strong light (such as sunlight), it still displays clear pictures.

6. LED displays are brighter and more saturated.

7. Led display is power saving: save 30%-50% electricity.

8. High temperature resistance: a hundred and eighty degrees is not a matter.

9. Long life: designed life 100 thousand hours.

10. Led display screen has high refresh rate.

P10 Outdoor Led Display-2S

Led display defects:

1. As each pixel is a light source, the eyes does not feel comfortable after watching for a long time.

2. The technology is advanced, the price is also higher.

LCD screen advantages:

1. It is traditional liquid crystal, the technology is mature. The design flaws are very few.

2. LCD has softer color. Because LCD is a liquid crystal panel and a backlight.

3. The price is lower than LED.

LCD screen shortcomings:

1. After long time use of LCD screen, there will be the drawback of the bright and dark picture. Now the LED backlight is used and the problem is much less.

2. LCD screen is faster on aging.

3. LCD large screen is more power consumption than LED display.

4. In the strong light (such as sunshine) LCD can't see clearly.

How to make the LED display more HD

As society develops faster and faster, LED display screens can be seen everywhere. As the main carriers of advertising and information broadcasting, led display follows the trend of the times in contemporary era. High-definition video often gives people a more stunning visual experience, and the displayed content will be more realistic. How to make the LED display more HD?

To achieve high-definition display must have four factors, first the source requires full HD, the second is the display can support full HD, the third is to reduce the LED display pitch, the fourth is using LED display and video processor. Full-color LED displays are actually moving towards higher clarity.

P1.667 HD Led Display

First, improve the contrast of full-color LED display

Contrast is one of the key factors affecting the visual effect. In general, the higher the contrast, the clearer the image is and the brighter the color is. Contrast has more influence on the dynamic video display effect. Because the light and shade conversion in the dynamic image is faster, the higher the contrast, the easier the human eye can distinguish the conversion process.

In fact, the contrast improvement of full-color LED display screens is mainly to increase the brightness of full-color LED display screens and reduce the surface reflectivity of the screens. However, the brightness is not as high as possible. Too high will affect the LED display. The life of the screen can also cause light pollution. Light pollution has become a hot topic now. Excessive brightness will affect the environment and people. The LED panel and LED light-emitting tube undergo special processing to reduce the reflectivity of the LED panel and improve the contrast of the full-color LED display.

Second, increase the gray level of full-color LED display

Gray scale refers to the brightness level of the single primary color brightness of a full-color LED display screen, which can be distinguished from the darkest to the brightest. The higher the gray level of a full-color LED display, the richer the color, the more colorful the color; display a single color, simple changes. The increase in gray level can greatly increase the color depth, so that the display level of the image color increases geometrically. LED gray scale control level is 14bit~16bit, which makes the high-level display product's image level resolution detail and display effect reach the world advanced level. With the development of hardware technology, LED gray scale will continue to develop higher control accuracy.

Third, reduce the full-color LED display pitch

Reducing the dot pitch of a full-color LED display can improve its sharpness. The smaller the dot pitch of a full-color LED display, the finer the screen display. However, this must be mature technology as the core support, the input cost is relatively large, the full color LED display produced into the price is also high, but fortunately the market is also moving towards a small pitch led display development.

P2 HD Led Display

Fourth, LED display and video processor combination

The LED video processor can use advanced algorithms to modify the signal with poor image quality and perform a series of processing such as deinterlacing, edge sharpening, motion compensation, etc., to enhance the details of the image and improve the picture quality.

The video processor image scaling algorithm is used to ensure that the video image is scaled to maintain the sharpness and gray level of the image as much as possible. In addition, the video processor is also required to have rich image adjustment options and adjustment effects to process the image brightness, contrast, and gray scale so as to ensure that the screen output is soft and clear.

The usage and precautions of led display control computer

Start up:

(1) Turn on the monitor first and then turn on the host computer.

(2) Start the LED control panel, enter the display programming software, open the edited file, and run the program.

(3) Turn on the display dedicated switch to power the display.

 

Shut down:

(1) Turn off the dedicated display switch first.

(2) Exit the special display software for the display and exit all programs.

(3) Turn off the host computer and turn off the monitor.

(4) Turn off all power connected to the display device.

P4 Indoor Led Display

Precautions:

(1) The display must be operated in strict accordance with the sequence of the start up and shut down.

(2) Do not plug or unplug the system board and all devices connected to the display with the display in operation.

(3) The dedicated display screen computer is not allowed to play games and install a software that is not related to the display screen to prevent the virus from invading the computer so as not to affect the normal operation of the display screen.

(4) All equipment related to the display screen shall not be dismantled or moved without the permission of the manufacturer of the led display screen.

cube led display

For more info about led display screen, please email to info@tcbleddisplay.com.

What categories could Led display screen be divided into besides indoor and outdoor

There are many kinds of LED display screen, mainly it could be divided in four ways: one is classified according to indoor and outdoor, two is classified according to work mode, three is classified according to the number of color, and four is according to the unit density of LED tube. Different types of displays have different uses, each has its own advantages and disadvantages. It can be chosen according to needs.

The indoor LED display is quite different from the outdoor LED display. First, the brightness is different. The luminance of the indoor screen is several times to dozens times lower than that of the outdoor screen. It is not bright enough to put the indoor display screen to the outdoor as if putting the TV set to the outdoor. Therefore, the outdoor screen must use the ultra high brightness LED, and in order to further improve the brightness and increase the visual distance, a number of super high brightness LED are often encapsulated in a pixel. Besides, outdoor screen need to be waterproof, anti direct sunshine, dustproof, high temperature and wind protection, anti thunder and so on, while the indoor screen is no need to consider these problems.

• P3 Indoor Led Display

1. online and offline display screen

LED displays are divided into two categories according to work mode, one is online, also called omnipotent display, the other is off line, also called intelligent display screen. The international standard 8X8LED matrix module is used for both the online and offline display screen. The surface of the screen is the same, the basic display function is the same, the main difference between the two is:

(1) the off-line display screen does not need to connect the microcomputer at ordinary times. The display screen has a built-in microcomputer. It can save a lot of pictures and can run out of the microcomputer independently. There are some clock chips in some screens, and could automatically be connected and show the calendar and clock. When we need to modify the display content, we can modify it through RS232 to connect the microcomputer. The connected display is connected to a microcomputer to work.

(2) The display mode of the off-line display screen is less. There are several display modes, such as pop-up, pull up, pull down, upward movement, and downward movement. The online display has more display ways, especially if the program is made with 3DS and other software, the display mode has no limit.

(3) off-line display is easy to operate. It's just as simple and convenient as duty light. As it does not need to connect the microcomputer, a process is reduced, and the possibility of failure is reduced. The online display screen needs to be maintained, especially if the animation program is to be made.

• P5 Outdoor Led Display

2. monochrome and color display screens

(1) The single color display screen uses standard part of standard 8X8 monochrome light emitting diode matrix module, each pixel can be red or green, can display various text, data, two dimensional graphics. The indoor single color screen is economical and practical, but the color is slightly single.

(2) The color display screen uses the standard 8X8 dual color light emitting diode matrix module (the module size is the same as before), each pixel has a red light, one green light emitting diode and two light emitting diodes. When red and green two light-emitting diodes are emitting at the same time, they are yellow. So the double base color can produce three colors: red, yellow and green. The double base color screen is colorful and can be used to display various color characters, data, graphics, animation and so on. In addition, it can also be connected with various data devices. It shows real-time dynamic data and advertisement. The indoor color display is bright, with distinct visual effect and better information display effectiveness.

(3) The color gray scale display uses the standard 8X8 double plexus light emitting diode matrix module (the module size is the same as before), each pixel has red, yellow, green color, each base color has 16X16 level gray =256 or 256X256 gradation =64K color and even more color. Color gray scale is rich in gray level and expressive. In addition to the same display effect as color display, color grayscale display can also display more colorful contents such as photos, images, 3D graphics, animation and video images. The expressive force is more delicate and full, the visual effect is more realistic and moving. Color gray display screen is also called color video display.  

What's the factors that affect the display effect of led display

There are many factors affecting LED display effect, such as brightness, screen pixel pitch, surface flatness, lamp attenuation and the failure rate, the use environment and so on. Here, TCB will explain the five factors that affect the display effect of the LED display.

P4 Indoor Led Display

One, pixel pitch

The affect of pixel pitch on clarity of screen is very obvious. The smaller the distance between pixels, the more delicate the picture is displayed. The reduction of pixel pitch must have mature technology as the core support. From the current trend, the reduction of pixel pitch is the inevitable choice of the market. However, the smaller the pixel pitch, the greater the cost of its input and the higher the price.

Two, the flatness of the panel and the reflectivity of the panel surface

The convex or concave of led display will cause the dead corner of the viewing angle. Surface roughness should be within ±1mm, to ensure the display image is not distorted. TCB LED display have special treatment on mask and LED light tube, in order to ensure the smooth surface of the screen while reducing LED panel reflectivity. It can improve the contrast of the display (the higher the contrast, the easier is the human eye to distinguish the dark and light conversion process of dynamic image).

Three, LED display screen gray scale

The gray scale is the brightness level that can be distinguished from the darkest to the brightest in the full color LED display. The higher the grayscale, the richer the color and the brighter the color. On the contrary, the color is single and the change is simple. The enhancement of gray scale can greatly improve the color depth, which makes the display layers of the color of the image increase in a geometric number. TCB small pitch LED display screen use high quality LED lamps, with low brightness and high gray scale, the picture is clearer and brighter, the quality of the image is more delicate.

Four, lamp quality and failure rate

The LED display is composed of tens of thousands or even hundreds of thousands of groups of red, green and blue LED lamp. With the increase of using time, LED lamp brightness will slowly decay. LED lamp brightness decay rate has some relevance with LED chip, auxiliary materials, encapsulation process. In general, after light for 1000 hours with 20 mA at room temperature, the red light attenuation of LED lamp should be less than 7%, the attenuation of blue and green LED lamp should be less than 10%. The consistency of red green and blue attenuation has great influence on the white balance of LED display and then affect the fidelity. At the same time, the lamp failure rate of good led lamp is low, even after 72 hours aging, the failure rate is not higher than 1/10000.

Five, use stability and security

The stability and safety of LED display is particularly important when running. The design of LED display cabinet is very important. The increase of the temperature of component thermal conversion will lead to the deterioration of image quality. Therefore, a good design of ventilation and heat dissipation is an important and indispensable index in the design of the cabinet. On one hand, it is the protection of its circuit, on the other hand, it is safety and so on, as well as the role of dustproof and waterproof. At the same time, should not use the power supply only at low prices and ignore the quality and performance. Under different temperature conditions, the stability of the work, the output voltage and the load capacity of power supply will be different, it undertakes after sale guarantee, so the safety performance of it directly affects the quality of the picture.

G-energy Power Supply JPS300V

After ensuring the above five points, in order for the LED display to achieve the best display effect, still need to ensure a good use environment. If the actual working temperature exceeds the product's prescribed range of application, it will not only shorten its life, but also seriously damage the product itself. When shooting, we should pay attention to the best shooting distance. The appropriate shooting distance is different with different pixel pitch led display. Of course, when selecting LED display product, users should choose a formal LED display manufacturer to ensure the quality, price and after sale service of the led display.

Will small pitch led display develop better than traditional led display in the future?

It is well known that the small pitch LED display is generally an indoor LED display with pitch below 2mm. At present, the small pitch LED display is widely used in the security monitoring, command and control center, radio and television station, video theater and other high-end fields.

The mainstream small pitch LED displays in the market include P1.25, P1.5625, P1.667, P1.875, P1.923, P2 and so on. Compared with the conventional LED display, the pixel control technology of small pitch LED display is more advanced and reliable, and it can improve the brightness, reducibility and uniformity of the display screen. Therefore, the small pitch LED display has a higher use value, and the advantages are very obvious comparing to the traditional DLP backdrop display. Below TCB give you a summary analysis of the comparative advantages of small pitch LED displays comparing to traditional display devices.

P1.667 HD Led Display

1. The integrity of display pixel is higher: the current high-end market of the indoor display is still DLP projection display, but DLP technology has some natural defects. It can not eliminate the display unit between the seam. The jointing of each display unit will devour at least one display pixel, so the display pixel is not complete. For small pitch, there will be no such problem. Small pitch LED display can perfectly compensate for this defect, and ensure that each display unit has a complete display pixel.

2. The screen color performance is better: as the DLP projection display shows the differences between the unit, so color and brightness uniformity for the entire screen is difficult to control. Also as time goes by, there will be more and more obvious differences between the display units . However, the professional small pitch LED display uses pixel level point control technology. The color performance of each display unit has a high degree of unity, which can make the screen's color expression better.

Image played by the small pitch LED display screen is with high pixel integrity, rich picture expression, and exquisite color. It is difficult for traditional display devices to do this. Therefore, TCB believes that high-quality, reliable and small pitch LED displays have broader development prospects than traditional displays.