Holiday Announcement of the International Workers' Day
Five Questions and Five Answers for LED Outdoor Big Screen
by：Demo
2021-07-07
Do you know the LED outdoor large screen? Liansen Optoelectronics summarized the five questions and five answers knowledge points of LED outdoor large screens. The following editor will introduce you to the knowledge of outdoor full-color screens.
1. What are the factors that consider the allowable screen area of u200bu200bthe user site?
(1) The relationship between the effective viewing distance and the actual site size;
(2) Pixel size and resolution;
(3) Unit is the base area estimation;
(4) Space for mechanical installation and maintenance of the screen body;
(5) The influence of the inclination of the screen on the distance.
2. What are the playback effects that users need?
(1) Text display: It depends on its text size and resolution requirements;
(2) Ordinary video display: 320×240 dot matrix;
(3) Digital standard DVD display: ≥640×480 dot matrix;
(4) Complete computer video: ≥800×600 dot matrix;
3. What are the brightness requirements of the ambient brightness for the screen?
The general brightness requirements are as follows:
(1) Indoor:>800CD/M2
(2) Semi-indoor:>2000CD/M2
(3) Outdoors (sit south and face north):>4000CD/M2
(4) Outdoors (sit north and face south):>8000CD/M2
4. What are the brightness requirements of red, green and blue in terms of white composition?
Red, green, and blue contribute differently to the color of white. The fundamental reason is that the retina of human eyes feels differently for different wavelengths of light. After a large number of experiments, the following approximate ratios are obtained for the design of the test: the simple red-green-blue brightness ratio is: 3:6:1 and the precise red-green-blue brightness ratio is: 3.0:5.9:1.1.
5. Why do high-end outdoor full-color screens use pure green tubes?
In the actual production of LED display screens, three primary color LED tubes with high luminous efficiency and rich and bright colors should be selected, so that the area of u200bu200bthe color triangle in the chromaticity diagram is as close as possible to the tongue spectrum Color curve, to meet the rich color and emit sufficient brightness. The tongue-shaped curve top is 515nm wavelength light, so high-end LED display chooses pure green LED Light module LED tube with a wavelength close to 515nm, such as 520nm, 525nm or 530nm wavelength light. LED tube.
If you have a need for led pcb board About Us, like , and , you need to be able to find a dependable provider who you can trust when necessary.
With comprehensive knowledge on About Us,why not visit the highly recommended site Demo Led Module to get a full appreciation of the best ?
Like anything else in led light engine module, there are a variety of choices and types to choose from, and each of them will affect your budget in some form. Demo Photoelectric Technology (Wuxi) Co., Ltd. offers a range of quality at competitive prices.
As the manufacturing procedure of About Us becomes more regulated, the costs to businesses will increase and the workforce will suffer as a result.
But we do think that reckoning with supply chains of About Us is a really important step. Even super simple switches in material, or sourcing, or shipping, or worker benefits seems like good place to start.
1. What are the factors that consider the allowable screen area of u200bu200bthe user site?
(1) The relationship between the effective viewing distance and the actual site size;
(2) Pixel size and resolution;
(3) Unit is the base area estimation;
(4) Space for mechanical installation and maintenance of the screen body;
(5) The influence of the inclination of the screen on the distance.
2. What are the playback effects that users need?
(1) Text display: It depends on its text size and resolution requirements;
(2) Ordinary video display: 320×240 dot matrix;
(3) Digital standard DVD display: ≥640×480 dot matrix;
(4) Complete computer video: ≥800×600 dot matrix;
3. What are the brightness requirements of the ambient brightness for the screen?
The general brightness requirements are as follows:
(1) Indoor:>800CD/M2
(2) Semi-indoor:>2000CD/M2
(3) Outdoors (sit south and face north):>4000CD/M2
(4) Outdoors (sit north and face south):>8000CD/M2
4. What are the brightness requirements of red, green and blue in terms of white composition?
Red, green, and blue contribute differently to the color of white. The fundamental reason is that the retina of human eyes feels differently for different wavelengths of light. After a large number of experiments, the following approximate ratios are obtained for the design of the test: the simple red-green-blue brightness ratio is: 3:6:1 and the precise red-green-blue brightness ratio is: 3.0:5.9:1.1.
5. Why do high-end outdoor full-color screens use pure green tubes?
In the actual production of LED display screens, three primary color LED tubes with high luminous efficiency and rich and bright colors should be selected, so that the area of u200bu200bthe color triangle in the chromaticity diagram is as close as possible to the tongue spectrum Color curve, to meet the rich color and emit sufficient brightness. The tongue-shaped curve top is 515nm wavelength light, so high-end LED display chooses pure green LED Light module LED tube with a wavelength close to 515nm, such as 520nm, 525nm or 530nm wavelength light. LED tube.
If you have a need for led pcb board About Us, like , and , you need to be able to find a dependable provider who you can trust when necessary.
With comprehensive knowledge on About Us,why not visit the highly recommended site Demo Led Module to get a full appreciation of the best ?
Like anything else in led light engine module, there are a variety of choices and types to choose from, and each of them will affect your budget in some form. Demo Photoelectric Technology (Wuxi) Co., Ltd. offers a range of quality at competitive prices.
As the manufacturing procedure of About Us becomes more regulated, the costs to businesses will increase and the workforce will suffer as a result.
But we do think that reckoning with supply chains of About Us is a really important step. Even super simple switches in material, or sourcing, or shipping, or worker benefits seems like good place to start.
Custom message
Related Products
Tel:
Email:
