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.

Could the indoor LED display screen be used outdoor?

After indoor LED display has been used for a period of time, some users feel it can't bring much value inside the house. If we want to move it to the outdoor, can we directly change the indoor display screen to the outdoor display screen? TCB made an analysis of this problem.

P4 Indoor Led Display

1. The brightness of indoor LED display. As the light of indoor LED display is soft, indoor LED display brightness is not very high, the circuit is dynamic scanning circuit, and outdoor LED display light is relatively strong, so the requirement for LED display screen is relatively high, and it uses static circuit. The difference between the two is very big. The number of driving chip used in outdoor and indoor is also very different, which also determines that indoor LED display brightness is low, so it is only suitable for indoor.

2. Indoor LED display screen has lower waterproof level than outdoor led display. Indoor LED display has only a simple process of waterproof performance, and some indoor LED display do not have the water-proof rubber. The outdoor LED display is particularly high on the waterproof performance. Even if we put the outdoor LED display in the water, it could work as usual. So structure of cabinet for indoor and outdoor is quite different.

3. The viewing distance of indoor display is relatively small. Indoor LED display has short visual distance and usually is small pitch LED display, and the area is not large either, from 15 square meters to 30 square meters, while outdoor LED display is at least 30 square meters.

P10 Outdoor Led Display-2S

Conclusion: indoor LED display is basically impossible to be changed to outdoor. It does not have features of outdoor led display. But in different environments, some indoor LED displays can also be used for outdoor LED display. 

Outdoor led video display board - tips to buy better quality

To pick the best from market you must be aware of following qualities that every outdoor digital board ought to have:

1. Waterproofness

You are prone to witness electric mess if your display board is not waterproof. There are many cables involved in its functioning which need to be protected from rain & moist.

2. Heat Removal quality

Good quality LED outdoor signs are those, which have effective ventilation. It saves the board from overheating and prevents fire. So, your display board cabinet must have necessary intakes and cooling features that maintain the temperature. 

3. Adequate Brightness

An LED outdoor display board must be able to match up with natural sunshine so that the images are seen clearly in daytime too. Check the brightness of your board out of the showroom instead of probing in artificial light.

P6 Outdoor Led Display

How Led affects quality of an led display screen

For a full-color LED display, LED as its most critical components, its quality plays a very important role on the LED display. LED screen uses large number LED per square meter, LED directly determines the performance, color saturation and sharpness of full-color LED display.

P3 Indoor Led Display

1. Full-color LED display brightness

LED brightness determines fullcolor LED screen brightness, the use of higher current, the LED brightness is higher. Also, LED have different angle, in the same chip size, the smaller view angle, the higher brightness, but the display’s viewing angle generally is 100 degrees -110 degrees, to ensure LED screen sufficient angle.

2. The failure rate of LED screen
LED display is composed by thousands or even hundreds of thousands of red, green, and blue LED components. Usually failure rate is less than 1/10,000 after 72 hours aging test.

3. The light attenuation of LED display
LED brightness will slowly decay along with long term use, the attenuation is related with LED chip, auxiliary materials, packaging technology and so on. In general, after 1000 hours aging on 20 mA at normal temperature, the red LED attenuation should be less than 7%, blue and green LED decay should be less than 10%. The RGB light decay consistency has great influence on future white balance, thereby affecting the fidelity of the display screen.

4. LED display antistatic ability
Since LED is semiconductor devices, it’s sensitive to static electricity, can easily failure by static, so the anti-static ability is essential for the lifespan of LED display. Generally, LED lamp anti static voltage testing should be no more than 2000V.

Why led display become popular in Church

The key to any successful ministry is communication. If you’re a minister or director, you know actively engaged members are the rock in which the house is built, regardless of faith and congregation size. In the 21^st century, websites and social media have taken the place of printed newsletters for important announcements and information during the week. But how is your flock being kept up to date on the latest happenings during church services and other related functions?

Adding large indoor LED displays is an investment your house of worship should strongly consider. Not only do they modernize your facilities and give ‘up to the minute’ news and information, they also allow members and visitors alike to become more actively engaged with services. In a time where church attendance is down, congregations are actively seeking ways to attract new members and connect with current ones. Consider the reasons LED displays are perfect for that goal:

1. Display hymnal lyrics. LED displays can eliminate the need to buy new or replacement hymnals. But if you prefer tradition, you could provide people with an option to follow along in a book or simply sing what’s on the screen.

2. Encourage your members to be social. Instead of announcing new people or special events like marriages and engagements, imagine showing your entire congregation photos or, better yet, live video. Immediately putting faces with names helps form new friendships.

3. Announce events like fundraisers and show full color videos of missionary work.

4. Promote upcoming services. Details for Easter, Christmas, Lent or any other special day can easily be displayed with dates, times and important details.

More affordable than you might think, large indoor LED displays aren’t just for mega-churches anymore. Indoor P6 Fixed LED display  is being widely used in university, colleague, institute and school hall, and also meeting room and church etc.

P6 Indoor Led Display

Any info needed for LED display project, just feel free to contact us by info@tcbleddisplay.com, www.tcbleddisplay.com. 

What are the advantages of indoor high definition LED display

The indoor HD led display could maintain a consistent high-definition display effect and vivid color screen at all viewing angles.Their masks and special design of each grid angle ensure the high contrast of the display appearance, and can support the three-speed SDI HD display mode of DVI,HDMI and 3G/HD/SD, which are suitable for TV recording,VCD,DVD and on-site live room.

• P1.923 HD Led Display

A lot of people will be surprised to ask,why Indoor High Definition LED Display can maintain such a high-definition display effect, and can be so popular with the majority of friends? Because this product is the mature product of TCB, its main advantages including exquisite screen display, vivid color, seamless splicing, good heat dissipation system, convenient and flexible disassembling. Indoor HD LED display is widely used in commercial real estate, government and enterprises lobby, command center, transportation hub, shopping mall,senior hotels,and so on.

• P2 HD Led Display

What’s the ideal medium to advertise your business

Full color LED signs provide businesses with a powerful new way to make their location shine on a crowded street. Outdoor LED signs are innovative and noticeable and can deliver advertising awareness, coverage and flexibility. Today large-format LED signs are regularly seen presenting moving video images in stadiums, shopping malls, and on road-sides. Full Color LED signs can display graphics, animations, text. Sharp and colorful moving graphics grab the attention of passing traffic while providing dynamic advertising messages.

• P5 Outdoor Led Display

TCB is designed for maximum visibility along highways, highly elevated installations, or any application requiring long distance visibility. The unique, modular, state-of-the-art design of these LED signs produces a dynamic advertising message center that is highly energy efficient, easy to be operated, installed and maintained. Advertise your products and services at a moment to increase your company’s sales and profits, like no other advertising medium can do like this. Becoming a recognized landmark in your local community. These LED signs exhibit excellent color contrast, which are very bright and will impact your daily pass-by audience with dazzling, professional advertising messages. 

What expenses are included for an led display

If you want to buy LED display screen, you would ask the quotation for reference and make a budgetary. Following TCB give you a specific introduction of all the expenses to help you have a clear understanding in purchasing LED full color display.

• P10 Outdoor Led Display

1. The cost of display screen: In general, we use USD / per square meter to account the quotes. This consists of the LED types, different materials, which makes different prices. The quotation including all the chips, PCB, IC driver, power supply, cabinet, cables and wires, etc.

2. The cost of controlling system is the expenses of sending card and receiving card. Generally speaking, one screen needs 1 sending card and put it into the host computer. The number of receiving card is depending on the sizes of led screen, the bigger size of the screen, the more use of receiving cards.

3. Computer is an essential facility to control the LED display, Dual-core CPU, 2G Ram, ATI HD 512M above, the motherboard should have PCI slots.

4. Equipped with 1 amplifier and 2 audios make led screen synchronized play video with sound.

5. Power Distribution Cabinet: small size led screen do not need a distribution box, it will be a waste of recourses. We recommend to equipped with a power distribution cabinet in a 10KW screen for the sake of each device runs stably with voltage and power current. It will also prevent the power source switches run off effectively.

6. Air-conditioning for heating distribution. To ensure the screen have a normal operating and long using life, an air-conditioning is needed for huge outdoor full color LED display over 20sqm.

7. Multi-Functional card is mainly used for outdoor LED display. It can intelligent adjust the brightness and temperature of LED full color display to prolong the lifespan. Indoor displays are no need to use it.

8. Lightning Arrester: Using for outdoor LED billboard to prevent the screen from lighting strike. Indoor displays are not applicable.

9. Video Capture card is installed into PC to display cable TV channel programs synchronously. Customers are volunteer to purchase it according to their needs.

10. LED video processor is mainly to improve the screen display effect and function application, fully tap the value of the LED display. To solve the problems of video signal input,dealing and display.Moreover, it can complete various signals format conversion. There are many different types of LED video processor, prices are also vary.

11. LED playback software including PC system software and LED video playback software, which are provided free of charge.

12. Steel, manual installation: We use steel structure to fixed display of support and use aluminum - plastic plate or stainless steel as wrapping materials. Manual installation costs including that free steel frame structure designed drawings by manufacturers.

13. Freight charges is depending on the distance, we believe most of clients are accpetable for this.

14. Technician costs: After the customers received LED screen, they may need 1 or 2 technical support engineers to help them with the installation and debugging techniques. You just need to be responsible for round-trip travel and accommodation expenses of our technical engineers.

• P4 Indoor Rental Led Display

Above are the 14 parts of LED display cost and we hope these could help you have a better understanding when you purchasing an LED screen.