Custom STN LCD Panel, STN Blue Mode/Background White
Characters/Fonts Display, Metal Pin Connection
Product Features:
| Product: | Custom STN Blue Mode LCD Display | Display Mode: | Negative Transmissive |
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| Driving Condition: | 1/8 Duty Or Customizable | Operating Voltage: | 3.0 V Or Customizable |
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| Optics: | 6:00 | Display Type: | STN |
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| Size: | Customizable | Backlight: | White / Amber / Blue / Yellow |
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| Operating Temp: | -30°C To +80°C | Storage Temp.: | -35°C To +85°C |
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| Connection: | Metal Pin Connection | Dot Space: | 0.1 Mm |
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| Response Time: | 0.1 Ms | Compliance: | REACH & RoHS Compliant |
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Principles of STN technology
The display principle of the STN type is similar to that of TN,
except that the liquid crystal molecule with the TN torsional
nematic field effect rotates the incident light by 90 degrees,
while the STN super-torsional nematic field effect rotates the
incident light by 180~270 degrees. It should be noted here that the
TN LCD itself only has two situations of light and dark (or black
and white), and there is no way to change the color. However, if a
color filter is added to the traditional monochrome STN liquid
crystal display, and any pixel of the monochrome display matrix
(pixel) is divided into three sub-pixels, the red, green, and blue
primary colors are displayed through the color filter, and then the
colors of the full-color mode can also be displayed through the
harmony of the three primary color ratios. In addition, TN type LCD
displays have a smaller screen size, but STN's improved technology
can make up for the lack of contrast.
STN-LCD structure
The internal structure of the STN-LCD color screen module, the
upper part of which is an LCD screen composed of polarizer, glass
and liquid crystal, and the lower part is a white LED and a
backlight board, which also includes the LCD driver IC, and a low
dropout regulator (LDO) that provides a stable power supply for the
LCD driver IC, two to eight white LEDs, and a boost regulator IC
driven by LED.
The way the LCD screen is driven
simple matrix drive method is composed of vertical and horizontal
electrodes, the part to be driven is controlled by the horizontal
voltage, and the vertical electrodes are responsible for driving
the liquid crystal molecules. In TN and STN type LCDs, the pure
drive electrode method used is a cross drive of the X and Y axes,
so if the display part becomes larger and larger, the reaction time
of the center electrode may be relatively long. And in order to
make the screen display consistent, the overall speed will be
slowed down. To put it simply, it seems that the screen of the CRT
monitor is not updated fast enough, that is, the user will feel the
screen flickering and jumping; Or when you need to display a fast
3D animation, but the display speed of the display cannot keep up,
the display may be delayed. Therefore, early LCD monitors had
certain size limitations, and they were not suitable for watching
movies or playing 3D games.
active matrix is driven by a set of electrodes for each element,
which is a bit like a DRAM loop, and the voltage is scanned (or
charged at a certain time) to represent the state of each element.
In order to improve this situation, the liquid crystal display
technology was later driven by an active-matrix addressing, which
is an ideal device to achieve a high data density liquid crystal
display effect with extremely high resolution. The method is to use
a silicon transistor electrode made of thin-film technology, and
use the scanning method to select any display point (pixel) to turn
on and off. In fact, the nonlinear function of thin-film
transistors is used to replace the nonlinear function of liquid
crystals, which is difficult to control. In the TFT type liquid
crystal display, the conductive glass is drawn on the net-shaped
small line, and the electrodes are matrix switches arranged by thin
film transistors, and there is a control box at the intersection of
each line, although the driving signal is quickly scanned at each
display point, but only the selected display point in the
transistor matrix on the electrode gets enough voltage to drive the
liquid crystal molecule, so that the liquid crystal molecular axis
turns into a "bright" contrast, and the display point that is not
selected is naturally the "dark" contrast. Therefore, it avoids the
dependence of the display function on the ability of the liquid
crystal electric field effect.
Custom STN LCD Panel, STN Blue Mode/Background White
Characters/Fonts Display, Metal Pin Connection Product Image
FACTORY AND FACILITIES
CONTACT
Welcome to inquire via ck@saef.com.cn
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