All Categories
- Industrial LCD display
-
Industrial Products
- DC Servo Drive
- AC Servo Drive
- other
- Heidelberg
- FANUC
- IFM
- Meter
- CCD
- Membrane Keypad
- Film
- YOKOGAWA Module
- Card
- ABB
- MITSUBISHI
- FANUC
- KEYENCE
- BECKHOFF
- Honeywell
- HOLLYSYS
- FUJI servo drives
- HP
- solenoid valve
- thermostat
- Siemens adapter
- color oscilloscope
- Fujitsu connector
- CHELIC
- SMC
- CISCO Module
- INTEL
- Key board
- FAIRCHILD
- Motherboard
- Board
- Bearing
- other
- Control Panel
- Contactor
- Circuit
- OMRON
- Relay
- Controller
- Photoelectric Switch
- Photoelectric Sensor
- Original
- Fan
- Motor Driver
- Limit Switch
- Amplifier
- power supply
- LENZE
- Cable
- Encoder
- Sensor
- Transformer
- Fiber Optic Sensor
- Protection Relay
- Temperature Controller
- Proximity Switch
- Switch Sensor
- Siemens
- Industrial board
- HMI Touch Glass
-
HMI Full Machine Whole unit
- OMRON HMI Touch Panel
- Siemens HMI Touch Panel
- Mitsubishi HMI Touch Panel
- Allen-Bradley automation HMI Touch Panel
- DELTA HMI Touch Panel
- EVIEW DELTA HMI Touch Panel
- KINCO DELTA HMI Touch Panel
- HITECH HMI Touch Panel
- WEINTECK HMI Touch Panel
- TECVIEW HMI Touch Panel
- WEINVIEW HMI Touch Panel
- PRO-FACE HMI Touch Panel
- SIMATIC HMI Touch Panel
- AMPIRE HMI Touch Panel
- HEIDELBERG HMI Touch Panel
- PANASONIC HMI Touch Panel
- PATLITE HMI Touch Panel
- KYOCERA HMI Touch Panel
- KEYENCE HMI Touch Panel
- WEINVIEW HMI Touch Panel
- HITECH HMI Touch Panel
- FUJI HMI Touch Panel
- HAKKO HMI Touch Panel
- SCHNEIDER HMI Touch Panel
- SAMKOON touch panel
- other
- Module
- lcd inverter
- Membrane Keypad Switch
- Winni Touch Screens
- Frequency Inverter
- Servo Motor
- PLC
Recommended Products
Home » News
Working principle:
1.The basic principle of the screen can display filled with a liquid crystal material between two parallel plates.The voltage change the internal molecular arrangement of liquid crystal material, then it can achieve the purpose of light and shading to show the depth of well-proportioned image.But if only the two plates plus three color filter layer, you can achieve color image display.
Mainly features:
1.Liquid crystal is a kind of organic complex, which is composed of long rod like molecules. In natural state, the long axis rod like molecules is roughly parallel.
2.The first characteristic of LCD is must between the planar liquid crystal filled in two columns with slots to work properly. The two plane of the groove perpendicular to each other (90 degree intersection).It is to say, if a plane molecular north-south arrangement, another plane molecular east-west, and located between the two surfaces of molecular was forced into a 90 degree turn state. As the light travels in the direction of the molecules, the light is turned back 90 degrees through the liquid crystal. But when a voltage is added to the liquid crystal. The molecules are arranged vertically so that the light can be directed out without any distortion.
3.3.The second characteristic of LCD is that it depends on the polarization filter and the light itself. The natural light distributed in all directions randomly. These lines form a net that blocks all the rays that are not parallel to the line.And the line of the polarizing filter is exactly the same as the first one.So the polarized light can be completely break. Only two filters are completely parallel to the line or the light itself has been reversed to match the second polarization filters.And the light can penetrate.
4.The LCD is made up of two mutually perpendicular polarization filters.So it is necessary to block all attempts to penetrate the light. However, Because the distortion of the liquid crystal between the two filters.So the first filter and the liquid crystal molecules will be turned to 90 degrees.And finally from the second filters in the. On the other hand, if the liquid crystal with a voltage, the molecules will be rearranged and completely parallel.So that the light is no longer reverse.So it just be block by second filters. In short, the electricity will block the light, without electricity.So the light emitted. Of course, you can also change the arrangement of the liquid crystal in the LCD, Is the light in the power injection instead of when the electricity is blocke. However, because the LCD screen always is lit, so only the power will blocke.
Basic types:
1.T1.he LED application can be divided into two categories: one is the single application of LED, including LED backlight, infrared LED; other one is LED display, China manufacturing and international LED based materials there still exists a certain gap.But the LED display, flat design and production technology of water Chinese basic is synchronization with the international.
2.The LED display screen is a display device which is composed of a light-emitting diode array. The LED characterize is low power consumption, long service life, low cost, high brightness, less failure, large viewing angle and far visual distance.
3.LCD the full name is the original Liquid Crystal Display, the first letter of each word, the Chinese called "LCD flat panel display" or "liquid crystal display". Its working principle is to use the physical properties of liquid crystals: power arrangement become orderly,it make the light easily penetration and not energized disarray, blocking the light penetration, it is simple to make liquid crystal as a barrier or gate for light penetration. The advertagement of LCD are: compared with the CRT display, the advantages of LCD include zero radiation, low power consumption, small heat dissipation, small size, accurate image restoration, sharp character display, etc.
Technical parameter:
1.Contrast ratio:
TThe LCD manufacturing choice control IC, filter and directional film and other accessories,.The panel contrast is 350:1 to the general user.But the contrast is not flat in the professional field to meet the needs of users. Relatively it is easy to achieve CRT display 500:1 or even higher contrast.Only high-end LCD display to achieve such a degree. Samsung, ASUS, LG and other brands on the market today LCD display can reach 1000:1 contrast at this level.But it is difficult to accurately measure the contrast through the instrument, so when the pick is to personally go to see it.
2.Brightness:
LCD is a kind of material between solid and liquid, it is not luminous and need to use additional light source. Therefore, the number of lamps is related to the brightness of lcd. The first liquid crystal display only up and down two light tubes, the development of the current, the lowest is the popularity of the four lights, high-end is the six lights. Four lamp design is divided into three forms: one is placed in the four sides each have a lamp, but the drawback is that the center will appear dark, the solution is from top to bottom four flat tubes are arranged in a way that the last one is placed in the form of "U" type, it is actually two lamp two in the. Six lamp design is actually the use of the three lamp, the manufacturers will be bent into a lamp "U" type, and then placed in parallel to achieve the effect of six lamps.
3.Response time:
Response time refers to the liquid crystal display for the input signal reaction speed, it is the liquid crystal from dark to light or dark by the light switch response time (brightness from 10%-->90% or 90%-->10% time), it usually is in the millisecond (MS) as a unit. To make this clear, we must start from the human perception of the dynamic image. There is a phenomenon of "residual vision" in human eyes.And the high speed motion picture will form a brief impression in the human brain. Animation, movies and the latest game is the application of the principle of visual residues now.So a series of gradual image is continuously display in front of people quickly and they form a dynamic image. People can accept the picture shows the speed of 24 seconds per second,which is the speed of the film at the rate of 24 frames per second, If the speed is lower than this standard, people will obviously feel the picture of the pause and discomfort. According to this indicator. The time request for each screen is less than 40ms. In this way, the liquid crystal display, the response time of 40ms was higher than 40ms and the display will appear flicker phenomenon obviously.It makes people feel dizzy. If you want to make the image to achieve the degree of flicker, it is best to achieve the speed of 60 frames per second.
4.Viewing angle:
The perspective of LCD is a headache problem, when the back light through the polarizer, the liquid crystal and the orientation layer, the output of the light will have a directional. That is to say, most of the light is emitted from the screen vertically. So it is from a larger perspective to see the LCD display, they can not see the original color, and even can only see all white or all black. In order to solve this problem, manufacturers also began to develop the technology of wide angle.So far there are three popular technologies, namely: TN+FILM, IPS (IN-PLANE -SWITCHING) and MVA (MULTI-DOMAIN VERTICAL alignMENT).
5.Purchase method:
We choise to buy LCD. The is a few basic pointers: high brightness: brightness value is higher, the picture is more beautiful, not hazy fog. The brightness of the unit is cd/m2, that is, per square meter of candlelight. Low order LCD brightness values, as low as 150 cd/m2, while higher order displays can be as high as 250cd/m2. High contrast: the higher the contrast, the color is more saturated, and will show the three-dimensional. On the contrary, the contrast is low, the color is barren, the image will become flat. Comparison of the value of the difference is quite large, low to 100:1, but also high to 600:1, or even higher. A wide range of visibility: the visual range is simple, refers to the screen in front of the screen can see the clear range. The larger the visual range, the easier it is to look at it; the smaller the viewer will be, as long as the viewer changes the viewing position slightly. The visual range of the algorithm is from the screen in the middle, top, bottom, left and right in the direction of four clear picture angle range. The larger the value, the wider the range, but the range of the four directions is not necessarily symmetrical.
1.The basic principle of the screen can display filled with a liquid crystal material between two parallel plates.The voltage change the internal molecular arrangement of liquid crystal material, then it can achieve the purpose of light and shading to show the depth of well-proportioned image.But if only the two plates plus three color filter layer, you can achieve color image display.
Mainly features:
1.Liquid crystal is a kind of organic complex, which is composed of long rod like molecules. In natural state, the long axis rod like molecules is roughly parallel.
2.The first characteristic of LCD is must between the planar liquid crystal filled in two columns with slots to work properly. The two plane of the groove perpendicular to each other (90 degree intersection).It is to say, if a plane molecular north-south arrangement, another plane molecular east-west, and located between the two surfaces of molecular was forced into a 90 degree turn state. As the light travels in the direction of the molecules, the light is turned back 90 degrees through the liquid crystal. But when a voltage is added to the liquid crystal. The molecules are arranged vertically so that the light can be directed out without any distortion.
3.3.The second characteristic of LCD is that it depends on the polarization filter and the light itself. The natural light distributed in all directions randomly. These lines form a net that blocks all the rays that are not parallel to the line.And the line of the polarizing filter is exactly the same as the first one.So the polarized light can be completely break. Only two filters are completely parallel to the line or the light itself has been reversed to match the second polarization filters.And the light can penetrate.
4.The LCD is made up of two mutually perpendicular polarization filters.So it is necessary to block all attempts to penetrate the light. However, Because the distortion of the liquid crystal between the two filters.So the first filter and the liquid crystal molecules will be turned to 90 degrees.And finally from the second filters in the. On the other hand, if the liquid crystal with a voltage, the molecules will be rearranged and completely parallel.So that the light is no longer reverse.So it just be block by second filters. In short, the electricity will block the light, without electricity.So the light emitted. Of course, you can also change the arrangement of the liquid crystal in the LCD, Is the light in the power injection instead of when the electricity is blocke. However, because the LCD screen always is lit, so only the power will blocke.
Basic types:
1.T1.he LED application can be divided into two categories: one is the single application of LED, including LED backlight, infrared LED; other one is LED display, China manufacturing and international LED based materials there still exists a certain gap.But the LED display, flat design and production technology of water Chinese basic is synchronization with the international.
2.The LED display screen is a display device which is composed of a light-emitting diode array. The LED characterize is low power consumption, long service life, low cost, high brightness, less failure, large viewing angle and far visual distance.
3.LCD the full name is the original Liquid Crystal Display, the first letter of each word, the Chinese called "LCD flat panel display" or "liquid crystal display". Its working principle is to use the physical properties of liquid crystals: power arrangement become orderly,it make the light easily penetration and not energized disarray, blocking the light penetration, it is simple to make liquid crystal as a barrier or gate for light penetration. The advertagement of LCD are: compared with the CRT display, the advantages of LCD include zero radiation, low power consumption, small heat dissipation, small size, accurate image restoration, sharp character display, etc.
Technical parameter:
1.Contrast ratio:
TThe LCD manufacturing choice control IC, filter and directional film and other accessories,.The panel contrast is 350:1 to the general user.But the contrast is not flat in the professional field to meet the needs of users. Relatively it is easy to achieve CRT display 500:1 or even higher contrast.Only high-end LCD display to achieve such a degree. Samsung, ASUS, LG and other brands on the market today LCD display can reach 1000:1 contrast at this level.But it is difficult to accurately measure the contrast through the instrument, so when the pick is to personally go to see it.
2.Brightness:
LCD is a kind of material between solid and liquid, it is not luminous and need to use additional light source. Therefore, the number of lamps is related to the brightness of lcd. The first liquid crystal display only up and down two light tubes, the development of the current, the lowest is the popularity of the four lights, high-end is the six lights. Four lamp design is divided into three forms: one is placed in the four sides each have a lamp, but the drawback is that the center will appear dark, the solution is from top to bottom four flat tubes are arranged in a way that the last one is placed in the form of "U" type, it is actually two lamp two in the. Six lamp design is actually the use of the three lamp, the manufacturers will be bent into a lamp "U" type, and then placed in parallel to achieve the effect of six lamps.
3.Response time:
Response time refers to the liquid crystal display for the input signal reaction speed, it is the liquid crystal from dark to light or dark by the light switch response time (brightness from 10%-->90% or 90%-->10% time), it usually is in the millisecond (MS) as a unit. To make this clear, we must start from the human perception of the dynamic image. There is a phenomenon of "residual vision" in human eyes.And the high speed motion picture will form a brief impression in the human brain. Animation, movies and the latest game is the application of the principle of visual residues now.So a series of gradual image is continuously display in front of people quickly and they form a dynamic image. People can accept the picture shows the speed of 24 seconds per second,which is the speed of the film at the rate of 24 frames per second, If the speed is lower than this standard, people will obviously feel the picture of the pause and discomfort. According to this indicator. The time request for each screen is less than 40ms. In this way, the liquid crystal display, the response time of 40ms was higher than 40ms and the display will appear flicker phenomenon obviously.It makes people feel dizzy. If you want to make the image to achieve the degree of flicker, it is best to achieve the speed of 60 frames per second.
4.Viewing angle:
The perspective of LCD is a headache problem, when the back light through the polarizer, the liquid crystal and the orientation layer, the output of the light will have a directional. That is to say, most of the light is emitted from the screen vertically. So it is from a larger perspective to see the LCD display, they can not see the original color, and even can only see all white or all black. In order to solve this problem, manufacturers also began to develop the technology of wide angle.So far there are three popular technologies, namely: TN+FILM, IPS (IN-PLANE -SWITCHING) and MVA (MULTI-DOMAIN VERTICAL alignMENT).
5.Purchase method:
We choise to buy LCD. The is a few basic pointers: high brightness: brightness value is higher, the picture is more beautiful, not hazy fog. The brightness of the unit is cd/m2, that is, per square meter of candlelight. Low order LCD brightness values, as low as 150 cd/m2, while higher order displays can be as high as 250cd/m2. High contrast: the higher the contrast, the color is more saturated, and will show the three-dimensional. On the contrary, the contrast is low, the color is barren, the image will become flat. Comparison of the value of the difference is quite large, low to 100:1, but also high to 600:1, or even higher. A wide range of visibility: the visual range is simple, refers to the screen in front of the screen can see the clear range. The larger the visual range, the easier it is to look at it; the smaller the viewer will be, as long as the viewer changes the viewing position slightly. The visual range of the algorithm is from the screen in the middle, top, bottom, left and right in the direction of four clear picture angle range. The larger the value, the wider the range, but the range of the four directions is not necessarily symmetrical.
