소개
오늘날의 디지털 시대에는 LED 디스플레이 is an important carrier of information dissemination and visual display. Its application scope has been widely penetrated into various fields such as business, 교육, entertainment, and transportation.
However, facing the dazzling array of LED display products on the market, how to accurately choose the appropriate pixel pitch according to the specific use scenario?
목차
1. What is the relationship between the pixel pitch of the LED display and viewing distance?
When we usually look at LED display screens, have you ever thought about why some display screens look very clear while others feel a little blurry?
In fact, this has a lot to do with the 픽셀 피치 그리고 시거리.
1). The quantitative “little secret” of viewing distance and pixel pitch
Generally speaking, there is a rough proportional relationship between viewing distance and pixel pitch. That is, the viewing distance is usually 2-10 times the pixel pitch.
For example, if there is an LED display screen with a pixel pitch of P1.25, then its suitable viewing distance is about 1.25-6.25 meters. Why is there such a ratio?
Think about it: if the pixel pitch is small, that is, the pixels are close together, then at a relatively close distance, we can see the image details composed of each pixel, so the viewing distance can be closer.
If the pixel pitch is large, the pixels are sparse, then the image will appear rough if viewed closely, and only when viewed from a distance can these pixels merge into a clearer image in our eyes.
2). “Small recommendation” of pixel pitch corresponding to different viewing distances
Recommended pixel pitch: ≤25
적용 가능한 시나리오:
Places like conference rooms and 전시회 halls. Think about it: in a conference room, everyone sits together and is relatively close to the display screen.
If the pixel pitch of the display screen is too large, the text, charts, etc., on it will not be clear, affecting the effect of the meeting. The same is true in exhibition halls. Visitors are relatively close to the exhibits.
In order to allow them to clearly see the relevant introduction of the exhibits, a display screen with a small pixel pitch must be used.
Just like we use a magnifying glass to look at things, the higher the magnification, the clearer the things we see.
The display screen with a small pixel pitch is equivalent to a high-power magnifying glass, which allows people who watch at close range to see a clearer picture.
Recommended pixel pitch: P1.5 – P2.5
적용 가능한 시나리오:
쇼핑몰, 호텔 lobbies, and other places. In shopping malls, when customers are shopping, they are about this distance away from the display screen.
If the pixel pitch of the display screen is too small, the cost will be higher, and it will not show much advantage at this distance.
If the pixel pitch is too large, it will affect the viewing effect. Therefore, the pixel pitch in the range of P1.5 – P2.5 is more suitable, which can not only ensure the picture quality but also control the cost.
The same is true for the hotel lobby. The guests coming and going are not far or close to the display screen. Using this range of pixel pitches can allow everyone to see a clearer picture without wasting resources.
Recommended pixel pitch: P4 – P10
Applicable scenarios:
Include 옥외 광고판, 경기장, and other places. Outdoor billboards are generally large, and people watch them from a distance. If a display with a small pixel pitch is used, the cost will be very high, and the delicate picture cannot be seen from a distance.
In stadiums, the audience sits in the stands and is far away from the display. Using a pixel pitch in the range of P4 – P10, the audience can see the content on display clearly from a distance, such as game scores, wonderful moments, replay, etc.
This is like when we look at the scenery in the distance; we don’t need too high a resolution as long as we can see the general appearance, and the same is true for LED displays viewed from a distance.
In short, when choosing an LED display, you must choose the appropriate pixel pitch according to the viewing distance so that the display can have the best effect and make it look more comfortable and clearer.
2. Pixel pitch selection strategy for typical LED display usage scenarios
Whether it is in a 쇼핑몰, a conference room, or on a large outdoor billboard, you can find that some LED displays are particularly good, and some are just a little bit worse.
In fact, this has a lot to do with the choice of pixel pitch. Different usage scenarios have very different requirements for pixel pitch.
1). Indoor high-definition display scenario
1). Conference room/command center
How to choose pixel pitch: P1.2 – P2.5
Reason:
Think about it: when holding meetings in conference rooms, PPTs, data charts, etc., are often displayed, and the command center also has to monitor various information in real-time.
These contents have high requirements for text clarity and picture fineness. If the pixel pitch is too large, the text and charts will be blurred, and the participants or commanders will not be able to accurately obtain information.
Take P1.2, for example; it can present the picture super fine, the text edge is so sharp, and even small details can be seen clearly.
For example, when a company holds a strategic meeting, it uses this high-pixel pitch display to display market data and competitor analysis so that everyone can see it at a glance and make more informed decisions.
- 예를 들어:
A conference room of a large Internet company is equipped with a P1.8 LED display. When presenting the annual product plan, various complex flowcharts and design details can be perfectly presented, and participants can have in-depth discussions, which greatly improves the efficiency of the meeting.
1.2). Shopping malls/cinemas
How to choose pixel pitch: P3 – P5
Reason:
쇼핑몰 and cinemas mainly use display screens to place advertisements. For advertisements, people should be able to see the general content at a glance, but there is no need to pursue extreme clarity.
After all, the cost must be taken into consideration. The pixel pitch of P3 – P5 ensures the basic clarity of the picture while being relatively low in cost and extremely cost-effective.
In shopping malls, advertisements of various fashion brands can be displayed on this display screen to attract customers’ attention.
In the cinema hall, movie trailers and show schedules can also be clearly presented.
- 예를 들어:
At the entrance of a busy shopping mall, a P4 LED display screen is installed. It plays promotional advertisements of various brands in a loop, with bright colors and moderate clarity.
Many customers passing by will stop to take a look, and the brand’s exposure will increase immediately.
2). Outdoor advertising scene
2.1). Close-range outdoor (bus station)
How to choose pixel pitch: P5 – P8
Reason:
The bus station is close to pedestrians, and people will check the bus route information when waiting for the bus. At this time, the clarity of the display screen must be guaranteed, but the cost cannot be too high.
The pixel pitch of P5 – P8 is still clear when viewed at close range, and the cost is relatively reasonable. It can display bus routes, station information, and some public service advertisements.
- 예를 들어:
A bus station in a certain city is equipped with a P6 LED display screen. Passengers can clearly see the real-time location and arrival time of each bus, which is convenient for everyone to arrange their travel reasonably.
If the pixel pitch of the display screen is too large, the information is blurred, which will delay things.
2.2). Long-range outdoor (city landmark)
How to choose pixel pitch: P10 – P20
Reason:
The LED display screen at the city landmark is very large, and the 시거리 is very far.
At this time, the focus is not on clarity, but on achieving large-area coverage and creating a strong visual impact. The pixel pitch of P10 – P20 can meet this demand, and the cost is relatively low.
For example, during large-scale sports events, the display screens at city landmarks can display the game scores and highlights in real time so that people in the city can feel the enthusiastic atmosphere of the game.
- 예를 들어:
A P16 LED display screen is installed on a landmark building in a certain city. When international sports events are held, the screenplays of fierce game pictures and scores attract countless citizens and tourists to stop and watch, creating a beautiful landscape of the city.
3). Stage performance scene
3.1). Large-scale indoor performances
How to choose pixel pitch: P1.2 – P1.8
Reason:
The stage effect of large-scale indoor performances must be cool! It must present colorful pictures and delicate details.
Small pixel pitches can provide high-resolution display effects, making the stage background and special effects more realistic.
Moreover, a high 재생률 (≥3840Hz) can avoid flickering of the picture, and the audience will not feel tired when watching.
Imagine that at a large concert, the LED display screen on the 단계 changes to various exquisite pictures with the rhythm of the song. It feels great.
- 예를 들어:
At a concert by a well-known singer, a P1.5 LED display was used as the stage background. When the lights were on, a dreamy starry sky effect appeared on the screen, and the singer’s singing pushed the atmosphere to a climax.
3.2). Temporary outdoor activities
How to choose pixel pitch: P3 – P6
Reason:
Temporary outdoor activities are generally carried out during the day or in a strong light environment, which requires the display to have high brightness (≥1500 nits). Otherwise, the picture cannot be seen clearly.
Moreover, in order to ensure that audiences in different positions can see a clear picture, the viewing angle must be large enough (≥140°).
While meeting these requirements, the pixel pitch of P3 – P6 is easy to carry and install, which is particularly suitable for temporary outdoor activities.
For example, in outdoor activities such as music festivals and sports events, LED displays can play game pictures and performance highlights in real-time, which makes the audience enjoy it.
- 예를 들어:
At an outdoor music festival, a P4 LED display was used.
Although the sun was strong, the picture was still clear and bright, and the audience could see the wonderful performance no matter where they stood, which greatly improved the viewing experience of the music festival.
In actual applications, we also have to consider factors such as specific project requirements and budget to select the most suitable pixel pitch, so that the LED display can bring us a better visual experience.
3. The impact of the content display requirements of LED display screens on the pixel pitch
LED display screens have different requirements for content display, and the pixel pitch of the display screen is very particular.
1). Text/icon display
- Recommended pixel pitch: P1.2 – P2.5
1.1). Impact analysis:
- Text clarity:
Think about it; text and icons are generally used to convey key information. If they are displayed blurry, it will be a joke.
Small-pitch LED display screens, such as P1.2 – P2.5, have high pixel density, and the edges of the text are as sharp as if they were cut by a knife, without any jagged edges.
For example, when displaying PPT in a conference room, the text and charts must be clearly visible to the participants in order to better understand the content.
If the pixel pitch is too large, the text becomes a blurry thing, and who can read it?
- Icon refinement:
Many icons are now beautifully designed with various details. If the pixel pitch of the display screen is not appropriate, the icon will become rough and lose its original beauty. Take the navigation display screen in the mall as an example.
The store icons must be clear and identifiable so that customers can find the place they want to go according to the icons.
If the icons are not displayed clearly, customers may go the wrong way, affecting the shopping experience.
2). HD video/picture display
- Recommended pixel pitch: P1.8 – P3
2.1). Impact analysis
- The smoothness of the picture:
The HD videos and pictures are dynamic. If the pixel pitch of the display screen is too large, the picture will be smeared and blurred, just like watching a slide show, which is not smooth at all.
Small-pitch displays, such as P1.8 – P3, have a relatively high refresh rate and response speed, which can reduce the picture smear and make the dynamic picture more natural.
For example, in live broadcasts of sports events, the movements of athletes and the trajectory of the ball need to be presented clearly and smoothly so that the audience can enjoy it.
- Color reproduction:
The colors of HD videos and pictures are very rich. If the pixel pitch of the display screen is not appropriate, the colors will be distorted and become dim.
Small-pitch displays can provide richer color levels and higher color saturation, making the colors of videos and pictures more vivid and realistic.
For example, when the advertising display screen at the entrance of a cinema plays a movie trailer, the picture is clear and smooth, and the colors are bright, which can attract the audience’s attention and increase the box office appeal of the movie.
3). Data visualization/map display
- Recommended pixel pitch: P2 and below
3.1). Impact analysis
- Information presentation capability:
Data visualization and map display usually need to present a large amount of complex information at the same time, such as data points, lines, areas, etc.
If the pixel pitch of the display is too large, this information will be squeezed together, making people dazzled. Ultra-small-pitch displays, such as P2 and below, have high resolution and large information-carrying capacity and can clearly display this complex information.
For example, in a financial trading center, it is necessary to display various financial data and market trend charts in real-time. Ultra-small-pitch displays can meet this demand, allowing traders to quickly obtain information and make decisions.
- 상호작용:
Many data visualization and map display systems now have interactive functions, and users can zoom, pan, and perform other operations by touching the screen.
If the pixel pitch of the display is too large, the touch experience will be very poor, and the operation accuracy will not be high.
Ultra-small pitch display screens can provide a better touch experience and operation accuracy, allowing users to view and analyze data more conveniently.
4. LED use environment factors restrict the selection of pixel pitch
1). Indoor environment
1.1). Brightness demand constraints
Think about it: the light indoors is generally not that strong. If the brightness of the display screen is too high, it will be like the sun shining directly into your eyes at noon, which is very dazzling, and your eyes can’t stand it after looking at it for a while.
Therefore, the brightness of indoor LED display screens is generally controlled between 500-800 nits. At this time, the small pitch display screen comes in handy, which is particularly suitable for this kind of low-light environment.
For example, in a conference room, everyone has to stare at the display screen for a long time during a meeting.
If the brightness of the display screen is not appropriate, the eyes will be sore and tired after a while, and there will be no mind to attend the meeting.
If a small pitch display screen of P1.25-P2.5 is used, the brightness is appropriate, the picture is clear, everyone’s eyes will be more comfortable when looking at the screen, and the meeting effect will be better.
1.2). Adaptation of viewing distance and pixel pitch
The indoor viewing distance is generally close. If the pixel pitch of the display screen is too large, the picture will not be clear when you look at it from a close distance, just like looking at something through frosted glass. Small-pitch display screens can solve this problem very well.
They have high resolution and can clearly show the details of text, pictures, and videos. For example, in the shopping guide display area of a shopping mall, when customers walk past, they are very close to the display screen.
If a P1.5 small pitch display screen is used, customers can see the details of the product clearly, including the material, color, and style, which greatly improves the shopping experience.
2). Outdoor environment
2.1). Constraints of brightness requirements
The light in the outdoor environment is very strong. If the sun is shining, if the display screen is not bright enough, the picture will immediately become blurred, as if covered by a layer of fog.
Therefore, outdoor LED display screens must have high brightness, generally above 1500 nits.
For example, in places such as squares and stadiums, where there is a large flow of people, advertisements and event information must be displayed on the display screen.
If the display screen is not bright enough and cannot be seen clearly in broad daylight, how can it attract everyone’s attention?
2.2). Protection level constraints
The outdoor environment changes a lot. It rains, blows, and is dusty. If the protection level of the display is not high enough, rain will enter, dust will block the display, and the display will be damaged.
Therefore, outdoor display screens must have a higher protection level, generally reaching IP65 or above.
The IP65 protection level is equivalent to putting a layer of “protective clothing” on the display screen, which can prevent foreign objects from invading and withstand water spray from all directions so that the display screen can operate normally in various bad weather conditions.
For example, on the fence of the construction site, there is a lot of dust and rain. If the protection level of the display screen is not enough, it will break down in a few days.
If a display screen with an IP65 protection level is used, it can run stably for a long time without worrying about these problems.
3). Installation space limitations
3.1). Thin and light, small-pitch products are suitable for small spaces
Some places have very small spaces, such as elevator rooms and shop windows. When installing display screens, you have to consider space issues.
If the display screen is too large and too thick, it can’t be put in at all. At this time, you have to choose thin and light, small-pitch LED display screen products.
Small-pitch display screens can provide higher resolution in limited space, and the display effect is not bad at all.
For example, the display window of a boutique has limited space. If a large display screen is installed, it will not only look ugly but also take up space.
If a P1.8 LED display screen is used, it is particularly suitable. The display screen is thin and compact, does not take up space, and can clearly display the pictures and videos of the products, attracting the attention of many customers.
5. Choice of budget and cost performance
1). Cost structure analysis
1.1). The relationship between pixel pitch and manufacturing cost
The smaller the pixel pitch, it is like cramming more people into a small space, and the number of pixels per unit area will increase, and the pixel density will naturally be higher.
This is like drawing on a piece of paper. The smaller the pitch, the more details can be drawn. However, in this way, the manufacturing cost will also rise.
Why? Because to produce so many dense and fine pixels, more advanced production equipment must be used, just like making clothes requires more advanced sewing machines.
Moreover, the craftsmanship must be more sophisticated, just like embroidery requires a finer needle, and the material cost has also increased a lot. For example, the manufacturing cost of producing a P1.0 display screen is much higher than that of a P2.5 display screen.
1.2). The relationship between pixel pitch and driver circuit complexity
For a display screen with a small pitch, each pixel must be obedient, and the 명도 and color must be precisely controlled, which requires a more complex driver circuit to direct.
This is like directing a large concert, where each singer (pixel) must sing according to the requirements of the conductor (driver circuit) to sing a beautiful harmony (clear picture). The more complex the driver circuit, the more difficult it is to design.
Just like designing a complex bridge, you have to consider various factors, and the R&D cost is naturally high. Moreover, a complex driver circuit is like a precision instrument, which is more prone to problems.
Once it breaks down, it is also very troublesome to repair. Just like repairing a super complex machine, you have to find a professional master, and you have to use special tools and parts.
1.3). The relationship between pixel pitch and maintenance cost
The pixels of a small-pitch display are like a group of closely arranged small soldiers. If one of the “soldiers” has a problem, it will be troublesome to repair it.
You have to ask professional technicians to hold special tools and carefully repair them, like doing surgery under a microscope.
Moreover, with so many pixels, the probability of problems is relatively high, which is like a large group of people together.
There will always be some people with poor health. In this way, the maintenance cost will increase.
2). Cost-effective selection strategy
2.1). How to choose for high-end scenes
Prioritize P1.2 – P2: In some high-end scenes with extremely high image quality requirements, such as command centers and control rooms, various complex information and data need to be displayed clearly in real time.
At this time, you have to choose a small-pitch display of P1.2 – P2. The pictures displayed by these displays are so delicate, just like photos taken with high-definition cameras, and the colors are as bright as freshly picked fruits.
When professionals look at this information, every detail can be seen clearly, just like looking at things with a magnifying glass.
Just like in a military command center, every dynamic on the battlefield must be grasped in real-time. If the display screen has poor image quality and misses key information, it will be a big trouble.
So, for this kind of high-end scene, the display screen must have the best image quality.
2.2). How to choose when the budget is limited
- P2.5 – P3 can be selected for indoor scenes:
If the budget is limited, but it is used in indoor scenes, such as conference rooms and school classrooms, P2.5 – P3 displays are a good choice.
These displays are very cost-effective, and the price is relatively affordable while ensuring a certain image quality. In the conference room, everyone mainly looks at presentations and videos.
P2.5 – P3 displays are enough to display these contents, just like eating home-cooked meals.
Although it is not as good as delicacies from mountains and seas, it can also be full and does not cost too much.
- P6 – P8 can be selected for outdoor scenes:
For outdoor scenes, such as billboards and the periphery of stadiums, the use environment is called a bad one, with wind, rain, and dust flying all over the sky.
If you have high requirements for the brightness and protection level of the display and a limited budget, then P6 – P8 displays are quite suitable.
These displays are bright, just like the sun, and can be seen clearly under strong outdoor light. The protection level is also high, just like putting a thick layer of armor on the display to resist the influence of various bad weather.
And the price is relatively low, just like buying a cost-effective car. Although it is not a luxury car, it can meet the needs of daily travel and achieve the purpose of advertising and information display within the budget.
6. 결론
In summary, the selection of pixel pitch of LED display is a complex decision-making process involving multi-dimensional factors.
By deeply understanding the key factors such as viewing distance, content display requirements, environmental factors, budget constraints, and brand and technical support, users can more accurately locate their needs and select the most suitable solution from a variety of LED display products.
마지막으로 LED 디스플레이에 대해 더 알고 싶으시다면, 우리에게 연락해주세요.
