First, pixel, pixel diameter, pixel pitch (1) The minimum luminous unit of a pixel LED display, which has the same meaning as the pixel in the ordinary computer display; each of the LED display screens can be individually controlled by a light emitting unit. For pixels.
(2) Pixel Diameter The pixel diameter ∮ refers to the diameter of each LED light-emitting pixel in millimeters.
(3) Pixel pitch The center distance between two pixels of an LED display is called pixel pitch, also called dot pitch. The denser the dot pitch, the higher the pixel density per unit area, the higher the resolution, and the higher the cost. The smaller the pixel diameter, the smaller the dot pitch.
Second, resolution
(1) The module resolution LED module multiplies the number of horizontal pixels by the number of vertical pixels.
(2) Screen resolution LED display screen multiplied by the number of pixels in the vertical pixel.
(3) The LED display module consists of a number of display pixels, which are structurally independent and can constitute the smallest unit of the LED display screen. Typical are 32*16, 32*32, 64*32 modules. The higher the resolution of the screen, the more content that can be displayed, the finer the picture, but the higher the resolution, the more expensive the cost.
Third, <br> <br> luminance in a given direction, the luminous intensity per unit area. The unit of brightness is cd/. The brightness is proportional to the number of LEDs per unit area and the brightness of the LED itself; the brightness of the LED is directly proportional to the driving current, but the lifetime is inversely proportional to the square of the current, so the driving current cannot be excessively increased in pursuit of brightness; at the same point density, the LED The brightness of the display depends on the material, package type and size of the LED lamp used. The larger the LED chip, the higher the brightness; on the contrary, the brightness is lower.
Fourth, the brightness level of the same level of gray LED display can be distinguished from the darkest to the brightest. The display screen used to display the video screen should have 256-level (8-bit) grayscale processing capability for each primary color; the grayscale depends on the number of bits processed by the video source and control system. At present, the domestic LED display mainly uses 8-bit processing system, which is 256 (28) gray level. A simple understanding is that there are 256 kinds of brightness changes from black to white. RGB three primary colors can be used to constitute 256 × 256 × 256 = 16777216 colors. That is commonly referred to as 16 Mega colors.
Fifth, the contrast <br> <br> under certain environmental illumination, LED display maximum brightness and background brightness ratio; Contrast = luminance (emission luminance) of light emission / non-emission luminance; luminance order to exhibit The uniform text and images are not affected by ambient light and the screen should have enough contrast. For the LED display, the contrast is better than 4096:1.
Sixth, white balance LED display white can be mixed by RGB three primary colors, the ratio of R:G:B is 3:6:1.
Seventh, control rate <br> <br> pixel is the smallest unit of the display image (pixels) is not working properly (runaway) proportion. Pixel out of control has two modes:
(1) The blind spot, that is, the blind spot, is not bright when it is needed, and it is called the spot;
(2) Highlights: When it is not bright, it is always on. It is called a constant bright spot.
In general, the composition of the pixel is 2R1G1B (2 red, 1 green, and 1 blue), 1R1G1B, 2R1G, and so on, but the out of control is generally not the same as the red, green, and blue lights in the same pixel at the same time all out of control , but as long as one of the lights goes out of control, we think that this pixel is out of control. According to the SJ/T11141-2003 industry standard, the pixel out-of-control rate of the indoor screen should not be greater than 3/10000, and the pixel out-of-control ratio of the outdoor screen should not be greater than 2/1000, and it should be a discrete distribution.
Dejian photoelectric company introduced:
Shenzhen Dejian Optoelectronics Technology Co., Ltd. is a leading integrated LED display operator. Specializing in R & D, production, and operation of indoor SMD full-color LED display, outdoor full-color LED display and LED commercial lighting products. Based on strong technical strength, rich industry experience and good market reputation, LED related products we have developed and produced have been widely recognized by customers at home and abroad.
The company has well-equipped LED production lines, advanced and complete testing equipment, as well as professional and enterprising team of engineers. We take the attitude of excellence, adhering to the principle of "treat people with integrity, mutual benefit" to ensure that customers provide a stable and reliable high-cost LED Display product.
At present, the company's leading product LED display and commercial lighting products have been widely used in customs, ports, stations, stadiums, banks, schools, factories, hotels, shopping malls, hospitals, industry and commerce, television stations, airports, monitoring centers and advertising and other industries. Products are exported to Malaysia, Singapore, Vietnam, Mexico, Saudi Arabia, Kuwait, Iran, Egypt, Australia, India, South Korea, Russia, more than 30 countries and regions.
Dejian Optoelectronics Product Introduction:
Our company specializes in design, R&D, production and sales of LED displays:
Indoor full color led display series: indoor P1.8, P2.5, P3, P4, P5, P6, P7.62, P8,, P10 color led display outdoor full color led display series: outdoor P6, P8 , P10, P12, P16, P20 color LED display and other LED products: large square screen color television advertising screen, LED electronic advertising display, outdoor large-scale stage performance concert dedicated color LED display and color screen, hotel LED display , Wedding rental led screen, LED color TV advertising display screen, a variety of specifications to choose from, to meet the customer's different line of sight and resolution requirements.
LED full color screen manufacturing experts, your best partners are welcome to inquire.
(2) Pixel Diameter The pixel diameter ∮ refers to the diameter of each LED light-emitting pixel in millimeters.
(3) Pixel pitch The center distance between two pixels of an LED display is called pixel pitch, also called dot pitch. The denser the dot pitch, the higher the pixel density per unit area, the higher the resolution, and the higher the cost. The smaller the pixel diameter, the smaller the dot pitch.
Second, resolution
(1) The module resolution LED module multiplies the number of horizontal pixels by the number of vertical pixels.
(2) Screen resolution LED display screen multiplied by the number of pixels in the vertical pixel.
(3) The LED display module consists of a number of display pixels, which are structurally independent and can constitute the smallest unit of the LED display screen. Typical are 32*16, 32*32, 64*32 modules. The higher the resolution of the screen, the more content that can be displayed, the finer the picture, but the higher the resolution, the more expensive the cost.
Third, <br> <br> luminance in a given direction, the luminous intensity per unit area. The unit of brightness is cd/. The brightness is proportional to the number of LEDs per unit area and the brightness of the LED itself; the brightness of the LED is directly proportional to the driving current, but the lifetime is inversely proportional to the square of the current, so the driving current cannot be excessively increased in pursuit of brightness; at the same point density, the LED The brightness of the display depends on the material, package type and size of the LED lamp used. The larger the LED chip, the higher the brightness; on the contrary, the brightness is lower.
Fourth, the brightness level of the same level of gray LED display can be distinguished from the darkest to the brightest. The display screen used to display the video screen should have 256-level (8-bit) grayscale processing capability for each primary color; the grayscale depends on the number of bits processed by the video source and control system. At present, the domestic LED display mainly uses 8-bit processing system, which is 256 (28) gray level. A simple understanding is that there are 256 kinds of brightness changes from black to white. RGB three primary colors can be used to constitute 256 × 256 × 256 = 16777216 colors. That is commonly referred to as 16 Mega colors.
Fifth, the contrast <br> <br> under certain environmental illumination, LED display maximum brightness and background brightness ratio; Contrast = luminance (emission luminance) of light emission / non-emission luminance; luminance order to exhibit The uniform text and images are not affected by ambient light and the screen should have enough contrast. For the LED display, the contrast is better than 4096:1.
Sixth, white balance LED display white can be mixed by RGB three primary colors, the ratio of R:G:B is 3:6:1.
Seventh, control rate <br> <br> pixel is the smallest unit of the display image (pixels) is not working properly (runaway) proportion. Pixel out of control has two modes:
(1) The blind spot, that is, the blind spot, is not bright when it is needed, and it is called the spot;
(2) Highlights: When it is not bright, it is always on. It is called a constant bright spot.
In general, the composition of the pixel is 2R1G1B (2 red, 1 green, and 1 blue), 1R1G1B, 2R1G, and so on, but the out of control is generally not the same as the red, green, and blue lights in the same pixel at the same time all out of control , but as long as one of the lights goes out of control, we think that this pixel is out of control. According to the SJ/T11141-2003 industry standard, the pixel out-of-control rate of the indoor screen should not be greater than 3/10000, and the pixel out-of-control ratio of the outdoor screen should not be greater than 2/1000, and it should be a discrete distribution.
Dejian photoelectric company introduced:
Shenzhen Dejian Optoelectronics Technology Co., Ltd. is a leading integrated LED display operator. Specializing in R & D, production, and operation of indoor SMD full-color LED display, outdoor full-color LED display and LED commercial lighting products. Based on strong technical strength, rich industry experience and good market reputation, LED related products we have developed and produced have been widely recognized by customers at home and abroad.
The company has well-equipped LED production lines, advanced and complete testing equipment, as well as professional and enterprising team of engineers. We take the attitude of excellence, adhering to the principle of "treat people with integrity, mutual benefit" to ensure that customers provide a stable and reliable high-cost LED Display product.
At present, the company's leading product LED display and commercial lighting products have been widely used in customs, ports, stations, stadiums, banks, schools, factories, hotels, shopping malls, hospitals, industry and commerce, television stations, airports, monitoring centers and advertising and other industries. Products are exported to Malaysia, Singapore, Vietnam, Mexico, Saudi Arabia, Kuwait, Iran, Egypt, Australia, India, South Korea, Russia, more than 30 countries and regions.
Dejian Optoelectronics Product Introduction:
Our company specializes in design, R&D, production and sales of LED displays:
Indoor full color led display series: indoor P1.8, P2.5, P3, P4, P5, P6, P7.62, P8,, P10 color led display outdoor full color led display series: outdoor P6, P8 , P10, P12, P16, P20 color LED display and other LED products: large square screen color television advertising screen, LED electronic advertising display, outdoor large-scale stage performance concert dedicated color LED display and color screen, hotel LED display , Wedding rental led screen, LED color TV advertising display screen, a variety of specifications to choose from, to meet the customer's different line of sight and resolution requirements.
LED full color screen manufacturing experts, your best partners are welcome to inquire.
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