Customized 7 Segment LCD Display HTN Blue 5V LCD Screen With PCB
Board
Detail Information
| LCD Type: | HTN, Negative |
| Viewing Angle: | 12 O'clock |
| Operating Temperature: | -20~+70℃ |
| Voltage: | 5.0V |
| Backlight: | White |
Detailed Parameters:
| Module Size | Customized | Display mode | HTN, Negative |
| LCD viewing area | 54(W)* 19(H) mm | Polarizer type | Transmissive |
| Driver IC | / | LED backlight | White |
| Drive method | 1/4 Duty, 1/3 Bias | Working voltage | 5.0V |
| Viewing angle | 12 O'clock | Connection Way | Rubber strips |
| Operate temperature | -10℃~+60℃ | Storage temperature | -20~+70℃ |
Advantages
Simple structure, low cost
It is composed of only 7 basic line segments, with a simple
production process. Compared to dot matrix LCD or OLED, its
manufacturing cost is lower, making it suitable for large-scale
popularization.
For example, low-cost devices such as ordinary electronic
calculators and kitchen timers almost all use 7-segment liquid
crystal displays.
Extremely low power consumption
The liquid crystal itself does not emit light. It relies on
external light sources (such as ambient light) or backlight
(usually LED), and during operation, it only requires a weak
current to drive the liquid crystal molecules to deflect. The power
consumption is much lower than that of LED digital tubes.
With a button battery, it can work for a long time (such as
electronic watches can last for several years), especially suitable
for portable and low-power devices.
Clear display, good visibility
Under normal lighting, the digital display of liquid crystal has
high contrast and clear characters, and there is no "irritating"
problem of LED digital tubes. The visual comfort is better.
After some products are equipped with backlight, they can also
display clearly in dark environments, meeting the needs of
different scenarios.
Compact in size, easy to integrate
The 7-segment structure design is compact. A single digit module
can be made very small (such as with a diameter of a few
millimeters), making it easy to integrate into small electronic
devices, saving space.
For example, the time display of smart wristbands and the reading
window of small multimeters all take advantage of its small size.
Long lifespan, high stability
The lifespan of liquid crystal materials and driving circuits is
long. Under normal use, they are not easily damaged, and their
vibration and impact resistance is better than mechanical display
components (such as mechanical counters).
There are no filament or electrode aging problems, high stability,
and low maintenance costs.
Disadvantages
Display content is limited.
Only 0-9 numbers and a few simple symbols (such as “-” and “.”) can
be displayed. Letters, Chinese characters or complex graphics
cannot be shown. The functional limitations are significant.
For example, it cannot be used in devices that require text display
(such as mobile phones, computer screens).
Dependent on light source, visibility is poor in dark places
(without backlight)
The 7-segment LCD without backlight cannot display at all in dark
environments and must rely on ambient light; even with backlight,
its brightness and color expression are far inferior to
self-luminous display technologies such as OLED.
Narrow viewing angle
LCD displays have a viewing angle issue. When viewed from the side
or at an inclined angle, display blurring, contrast reduction, or
even invisibility may occur. The viewing angle range is usually
less than 120°.
In contrast, LCDs with OLED or IPS materials have wider viewing
angles and are more applicable.
Performance declines in low temperatures
The activity of liquid crystal molecules is greatly affected by
temperature. In low-temperature environments (such as below -10°C),
response speed slows down, and display delays or freezes may occur;
in extreme low temperatures, the display function may even be lost.
Unable to achieve dynamic effects
Due to the fixed structure, only static numbers can be displayed
through the combination of segment on and off. Dynamic effects such
as animations and gradients cannot be achieved, and the
interactivity is poor.
