2.0-inch bar LCD display: an efficient information window in a compact space
The 2.0-inch bar LCD display is a complete display device that integrates display, backlight, drive and protection structure, and is designed for narrow and long spaces (16:3 ratio, 60mm×11mm visible area). It not only has the advantages of low power consumption and high stability of LCD technology, but also solves the assembly problems of equipment manufacturers through integrated design. It can be directly embedded in smart wearables, smart homes, portable instruments and other products, providing clear text, numerical values and simple graphic displays, and becoming an intuitive information window for users to interact with devices.
Display effect: clear and intuitive information transmission
1. Image quality and readability
Resolution and detail performance: 240×48 pixel dot matrix layout, pixel density of 102PPI, sharp text edges, even fine values such as "0.01℃" can be clearly displayed. The contrast ratio of the black and white monochrome model (black background and white text) is 300:1. In indoor lighting conditions, the content can still be easily read from 3 meters away; the pseudo-color model supports 65536 colors, and the information type can be distinguished by color (such as red warning, green normal), and the information level is clearer.
Brightness and environmental adaptation: Built-in side-entry LED backlight, the brightness can be adjusted between 200-400cd/m² (default 300cd/m²), with anti-glare surface treatment (haze 15%), in direct kitchen light or office natural light environment, it can avoid reflection interference and maintain good readability.
2. Dynamic display capability
Response speed and smoothness: TN type panel response time ≤25ms, IPS type ≤15ms, although it does not support high-speed video playback, but there is no smear when displaying simple dynamic content (such as progress bar scrolling, icon switching). For example, the status animation of "verifying → unlocked" is displayed on the smart door lock, and the transition is natural and smooth.
Flexible switching of display modes: supports full-screen display, partial refresh (such as updating only the numerical part) and standby mode (backlight off, retaining static content). Partial refresh can reduce power consumption by 50%, which is suitable for devices that need to display for a long time (such as the signal strength screen of the router).
Structure and performance: practical design adapted to compact scenes
1. Advantages of integrated structure
Fully wrapped protection: The surface of the display screen is covered with 0.2mm thick tempered glass (Mohs hardness 7), and the edge is encapsulated with ABS plastic frame. The dustproof level reaches IP54, which can resist daily dust and splashing water (such as oily splashes in the kitchen and fog in the bathroom), and is more durable than the exposed LCD module.
Light and portable features: The overall thickness is only 2.8mm (including glass cover and frame), and the weight is 1.5g. It can be embedded in small spaces such as watch straps and device sides (installation space requires 62mm×13mm×3mm), without affecting the grip or wearing comfort of the product.
2. Electrical performance and battery life
Low power operation: working voltage 3.3V-5V, average power consumption 0.1-0.15W (medium brightness), standby power consumption ≤0.01W (backlight off). In a battery-powered electronic skipping rope counter, a CR2032 battery can support continuous display for 12 months, which is about 10% longer than the battery life of OLED screen devices of the same size.
Wide temperature and stable operation: Civilian-grade applicable temperature - 10℃ to 60℃, industrial-grade - 20℃ to 70℃, outdoor in winter (-5℃) or next to the kitchen oven (50℃), the screen display is flicker-free and the text is not blurred, ensuring accurate information transmission.
Installation and use: convenient and efficient integrated experience
1. Flexible installation method
Ready-to-use design: Two installation solutions are provided - double-sided adhesive (suitable for flat surfaces, installation time <30 seconds) and screw fixing (4 φ1.2mm mounting holes, suitable for vibration environments). After installation, the gap with the device housing is ≤0.1mm to avoid looseness and abnormal noise.
Standardized interface: 100mm long FPC cable (customizable length) is led out at the tail, supporting SPI/I2C interface, directly connected to the MCU (such as Arduino, STM32) of the device motherboard, without the need for additional drive circuits, engineers can complete wiring debugging in 10 minutes.
2. User-friendly operation
No operation threshold: As a pure display device (non-touch model), users do not need to learn the operation logic, and the preset content (such as "time 12:30" and "battery 75%) will be displayed when the device is turned on, which is suitable for all groups such as the elderly and children.
Low maintenance cost: LCD screen has no risk of screen burn-in, service life ≥ 30,000 hours (10 years if used 8 hours a day), can be replaced as a whole when a fault occurs (replacement time < 5 minutes), which is more efficient than repairing LCD modules of discrete components.
Applicable scenarios: multiple applications of small space display
1. Smart wearable and portable devices
Sports bracelet/watch: adapted to the narrow and long shape of the bracelet, displaying data such as steps, heart rate, exercise mode, etc., black and white screen design meets the demand of battery life priority, and the tempered glass surface can resist sweat and slight collisions during exercise.
Electronic key chain: displays access control permissions and remaining usage times, the small bar screen does not affect the portability of the key chain, and the low power consumption design ensures that there is no need to replace the battery for half a year.
2. Smart home and small appliances
Smart door lock: embedded on the side of the door lock handle, displays "unlocked", "wrong password", "low battery" and other states, tempered glass is scratch-resistant, and there are no obvious scratches on the surface after long-term use (3 years).
Coffee machine/electric kettle: Displays heating progress ("80%") and temperature ("95℃"). The black background and white text are clearly readable under the kitchen light, and users can check the status without bending over.
3. Public facilities and industrial assistance
Shared power bank cabinet: The bar screen of each position displays "available", "charging" and "fault". The monochrome display is concise and clear, and the low cost is suitable for large-scale deployment (the cost of a single screen is 60% lower than that of a touch screen).
Small flow meter: Displays real-time flow value ("0.3L/min"), and the industrial-grade wide temperature design can work stably in the dust environment of the workshop, with a reading error of ≤1%.
Selection and customization: Meet diverse needs
1. Model selection recommendation
Basic model (monochrome, TN panel): Suitable for cost-sensitive equipment that only needs to display values (such as electronic scales, timers), with the highest cost performance.
Advanced version (pseudo color, IPS panel): suitable for scenes that require color-based information distinction (such as the normal/abnormal status of medical equipment), with a 170° wide viewing angle to ensure clear viewing from multiple angles.
Industrial version (reinforced frame, wide temperature): used in harsh environments such as outdoors and workshops, with a metal reinforcement layer added to the frame, and vibration resistance improved by 50%.
2. Customized service
Appearance customization: frame color (black/white/silver) and glass cover (anti-glare/high light transmittance) can be adjusted as needed to match the overall design style of the product.
Function expansion: backlight automatic adjustment (light sensor) can be added to automatically switch brightness according to ambient light intensity (such as 400cd/m² during the day and 200cd/m² at night).
