LED display industry terminology
LED display industry terminology
I. Table sticker module, what are the advantages and disadvantages?
Advantages: clear and smooth display effect, good effect, high pixel point, suitable for indoor viewing
Disadvantages: large screen brightness is not high enough, the heat dissipation of the lamp is not dealt with properly.
What are the advantages and disadvantages of SIP module?
Sub-surface mounted mixed SIP and SMT a new product, LED packaging and SMT is the same, the negative pin and DIP the same, through the PCB veneer to weld.
Advantages: is high brightness, good results
Disadvantages: complex production process, maintenance difficulties and high costs
Three, three in one, what are the advantages and disadvantages?
Will be three different RGB color LED chip package according to a certain spacing vertically side by side.
Advantages: good effect
Disadvantages: complex production process, maintenance difficulties and high costs
Fourth, what is the difference between indoor module LED display and SMD LED display?
1. Color light-emitting parts: module LED display is generally show yellow-green, pure green module is more expensive, SMD LED display is generally used pure green tube core
2. Display effect is good: pixel visual feeling is relatively coarse, low brightness, easy to produce fuzzy phenomenon; LED display chip consistent line is better, high brightness
3. Maintenance: LED display module maintenance is difficult, replacement cost is higher, while the patch is easy to maintain, can be repaired separately.
Fifth, why LED display production time is so long
1. Quality raw material procurement: LED tube procurement cycle is long, imported chip cycle is extended!
2. Complex production process: through the PCB veneer design, cover production, glueing, adjusting white balance
3. Structural framework of the joint: box design, taking into account the wind, rain, lightning and electricity
Six, what is the difference between synchronous and asynchronous
Synchronous system: that is, the computer display content and LED large screen display content synchronized full-color LED display control system
Asynchronous system: that is, the computer edited verses stored in the control system, instant computer shutdown will not affect the full-color LED display screen display
Seven, what is the real pixel
Refers to the full-color LED display physical pixels and the ratio between the actual pixels (1:1), the actual number of points to show how many points of image information
Eight, what is the virtual pixel
Refers to the ratio between physical pixels and virtual pixels (1:N), the display pixels than the actual much more
IX. What is the viewing angle/viewable angle/optimal viewing angle?
Angle of view: when the brightness of the observation direction drops to 1/2 of the normal brightness of the LED display, the angle formed between the two observation directions and the normal direction of the same plane is divided into horizontal and vertical angles.
Viewing angle: can see the direction of the image content on the display, and the display of the angle made by the normal line
The best angle of view: to see the content of the display and not color cast, the image content of the clearest direction and the angle made by the normal.
Ten, how to choose the right LED display?
1. Viewing distance, angle of view to determine
2. Installation environment to determine
3.The content of the display to determine
4. Screen resolution requirements
5.Cost control range
Advantages: clear and smooth display effect, good effect, high pixel point, suitable for indoor viewing
Disadvantages: large screen brightness is not high enough, the heat dissipation of the lamp is not dealt with properly.
What are the advantages and disadvantages of SIP module?
Sub-surface mounted mixed SIP and SMT a new product, LED packaging and SMT is the same, the negative pin and DIP the same, through the PCB veneer to weld.
Advantages: is high brightness, good results
Disadvantages: complex production process, maintenance difficulties and high costs
Three, three in one, what are the advantages and disadvantages?
Will be three different RGB color LED chip package according to a certain spacing vertically side by side.
Advantages: good effect
Disadvantages: complex production process, maintenance difficulties and high costs
Fourth, what is the difference between indoor module LED display and SMD LED display?
1. Color light-emitting parts: module LED display is generally show yellow-green, pure green module is more expensive, SMD LED display is generally used pure green tube core
2. Display effect is good: pixel visual feeling is relatively coarse, low brightness, easy to produce fuzzy phenomenon; LED display chip consistent line is better, high brightness
3. Maintenance: LED display module maintenance is difficult, replacement cost is higher, while the patch is easy to maintain, can be repaired separately.
Fifth, why LED display production time is so long
1. Quality raw material procurement: LED tube procurement cycle is long, imported chip cycle is extended!
2. Complex production process: through the PCB veneer design, cover production, glueing, adjusting white balance
3. Structural framework of the joint: box design, taking into account the wind, rain, lightning and electricity
Six, what is the difference between synchronous and asynchronous
Synchronous system: that is, the computer display content and LED large screen display content synchronized full-color LED display control system
Asynchronous system: that is, the computer edited verses stored in the control system, instant computer shutdown will not affect the full-color LED display screen display
Seven, what is the real pixel
Refers to the full-color LED display physical pixels and the ratio between the actual pixels (1:1), the actual number of points to show how many points of image information
Eight, what is the virtual pixel
Refers to the ratio between physical pixels and virtual pixels (1:N), the display pixels than the actual much more
IX. What is the viewing angle/viewable angle/optimal viewing angle?
Angle of view: when the brightness of the observation direction drops to 1/2 of the normal brightness of the LED display, the angle formed between the two observation directions and the normal direction of the same plane is divided into horizontal and vertical angles.
Viewing angle: can see the direction of the image content on the display, and the display of the angle made by the normal line
The best angle of view: to see the content of the display and not color cast, the image content of the clearest direction and the angle made by the normal.
Ten, how to choose the right LED display?
1. Viewing distance, angle of view to determine
2. Installation environment to determine
3.The content of the display to determine
4. Screen resolution requirements
5.Cost control range