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Custom Service: | Provide Customized Services | ||
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Highlight: | 132×64 HTN LCD Display,Negative LCD Display,Operating Temperature -20 to 70°C LCD Display |
Above the switch of the water purifier and water dispenser, there will be a liquid crystal LCD display screen installed to show the amount of purified water and to view the operation of the machine more intuitively. The material used is HTN or VA type, which has a relatively high cost performance and is also elegant and generous.
Features: Above the switch of the water purifier and water dispenser, there is a liquid crystal LCD display screen installed to show the amount of purified water and to view the operation status of the machine more intuitively. The material used is HTN or VA type, which has a relatively high cost performance and is elegant and generous.
The size and type of HTN LCD display are selected based on the device's panel design, the amount of information to be displayed, and cost considerations. The following table summarizes common specifications.
Display Type | Common Size (W×H×T, mm) | Typical Resolution / Format | Key Application Characteristics |
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Character Dot Matrix | ~ 57.5×41.0×10.1 | 132 (W) × 64 (H) dots | Displays characters, numbers, and simple graphics. Suitable for most basic water purifiers. |
~ 80.0×36.0×13.1 | 16 Characters × 2 Lines | Shows two lines of text for status and basic parameters. | |
~ 122.0×44.0×14.6 | Not Specified | Used for applications requiring larger character display. | |
Segment Numeric | ~ 86.8×40.2×6.6 | 6 Digits (7-Segment) | Primarily displays numbers, often with icons. Ideal for showing temperature, TDS values. Common in instant heaters. |
~ 110.78×61.9 (T.N/A) | 6 Digits (7-Segment) | A larger segment display for more prominent numerical readout. | |
Graphic Dot Matrix | ~ 57.5×41.0 (T.N/A) | 132 (W) × 64 (H) dots | Capable of custom graphics, icons, and more characters. High information capacity. |
Custom Shape | Customized per requirement | Customized per requirement | Tailored to fit specific product panel designs, enhancing aesthetics and integration. |
Selecting the right HTN LCD for a water appliance involves evaluating several factors:
Information Requirements: Define the type and volume of data to be shown (e.g., simple numerals, status icons, text prompts, or graphical interfaces).
Physical Space Constraints: Precisely measure the allocated space (aperture and depth) on the device panel to ensure the display module fits.
Viewing Angle & Readability: Select a technology (HTN, STN) with a suitable viewing angle for the typical user's line of sight to ensure clarity.
Interface & Driver Compatibility: Confirm the display's interface type (e.g., Pin connector, FPC cable) is compatible with the main PCB and that the driver IC is supported.
Backlighting Needs: Determine if backlighting is required for the usage environment and choose a color (e.g., white, blue) that ensures readability under various lighting conditions.
Operating Temperature & Lifespan: Ensure the display's operating temperature range (e.g., -20°C ~ +70°C for HTN) and longevity are suitable for the appliance's intended environment (e.g., kitchens).
Cost-Effectiveness: Choose the most cost-effective solution that meets all functional, reliability, and aesthetic requirements.
High Readability and Visual Comfort
The negative display features dark backgrounds (black/dark gray) with light characters (white/light gray). This high-contrast scheme is eye-catching in well-lit environments, reduces glare, minimizes eye strain, and offers a comfortable viewing experience akin to an e-ink display.
Premium Aesthetics and Modern Look
When the device is idle or off, the negative screen blends seamlessly into the appliance's panel (appearing as a uniform black surface). This creates a clean, minimalist, and high-end appearance that significantly boosts the product's overall perceived quality and technological sophistication.
Comprehensive Information and Intuitive Interaction
Capable of displaying multiple critical data points simultaneously, such as:
Water temperature (Room Temp./Warm/Hot)
Water volume (Large Cup/Small Cup)
TDS value (Water quality indicator)
Filter life reminder (Percentage or progress bar)
Operational status (Purifying/Refilling/Water Shortage)
Child lock indicator
It enables your users to have a clear and concise overview of the machine status and water quality, facilitating informed interaction.
Energy Efficiency and Reliability
HTN technology itself is inherently low-power, aligning with the energy-saving requirements of household appliances.
The LCD module has an exceptionally long lifespan and offers stable, reliable performance as it does not emit its own light (relies on a backlight).
Superior Sunlight Legibility
Compared to positive displays (light background/dark characters), negative displays maintain much better readability under direct sunlight or strong ambient light, preventing the "washed-out" effect that makes positive displays hard to see.
Parameter Category | Detailed Description |
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Display Technology | HTN (High Twisted Nematic) |
Display Mode | Negative Display |
Material Composition | 1. Liquid Crystal (LC): Features a twist angle (~100-110°) between that of TN (Twisted Nematic) and STN (Super Twisted Nematic) technologies. 2. Glass Substrates: Coated with ITO (Indium Tin Oxide) conductive layers. 3. Polarizers: Two sheets attached to the outer surfaces of the glass substrates. A specific combination (e.g., Transflective top / Reflective bottom) is used to achieve the negative effect. 4. Backlight Unit (BLU): Typically side-fire LEDs (common colors: White or Blue). Light is distributed evenly via a light guide plate (LGP). |
Key Characteristics | Advantages: • Higher Contrast than TN: Offers superior clarity compared to basic TN displays. • Lower Cost than STN/TFT: A cost-effective solution for feature-rich displays. • Low Driving Voltage: Easy to interface with the main control MCU. Disadvantages: • Viewing Angle narrower than STN/TFT: Sufficient for frontal viewing on an appliance. • Typically Monochromatic: Common backlight colors include Yellow-Green, Blue, or White. |
Typical Interface | Pin Connector (for pin headers) or Zebra Connector (Elastomeric Connector/Zebra strip) for connection to the main PCB. |
Drive Method | Static or multiplexed driving. Requires a dedicated LCD driver IC or an MCU with an integrated LCD driver. |
Operating Temperature | Wide range (e.g., -20°C ~ +70°C), fully suitable for home appliance environments. |
Operating Voltage | Low voltage drive (e.g., 3V, 5V), ensuring safety and low power consumption. |
Customization | Highly Customizable: • Content: Icons, characters, digits, progress bars can be tailored to specific product functions. • Form Factor: Custom shapes and sizes available. • Backlight Color: Choice of backlight color (e.g., Blue for tech appeal, White for simplicity) to match UI design. |
For water purifiers and dispensers, the HTN negative LCD represents an optimal balance of performance, cost, and aesthetics.
It provides superior clarity compared to basic TN displays, supporting more complex content.
It is more cost-effective than STN or full TFT color screens, helping manage overall product costs.
The negative mode delivers a premium look and excellent readability, greatly enhancing the user experience and market competitiveness of the product.
Therefore, when you see a water purifier with a sharp, clear display on a black background, it is likely an HTN negative LCD—making it the preferred display solution for mainstream and premium models in the current market
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