Content last revised on August 19, 2026
KOE TX14D23VM5BAB 5.7-inch VGA Industrial TFT-LCD Module
How do design engineers maintain clear HMI readability in harsh outdoor equipment exposed to direct sunlight and sub-zero temperatures? The KOE TX14D23VM5BAB delivers high-luminance optical clarity and rugged environmental tolerance for compact industrial operator interfaces. Key Specifications: 800 cd/m² | 640×480 VGA | -30°C to +80°C. Key Benefits: High ambient legibility; reliable cold-start operation. This module resolves the challenge of display wash-out in outdoor environments without requiring excessive active cooling. For compact outdoor control panels requiring sunlight visibility, this 5.7-inch 800 cd/m² display is the optimal choice.
Frequently Asked Questions
Engineering Insights for System Integration
How does the 800 cd/m² luminance of the TX14D23VM5BAB prevent display wash-out in direct sunlight?
Standard indoor panels typically provide 250 to 350 cd/m², which appear washed out under high ambient illuminance. The 800 cd/m² backlight output of the TX14D23VM5BAB overcomes ambient surface reflection, maintaining crisp alphanumeric clarity and contrast on outdoor operator consoles.
What design considerations apply to the 40-pin CMOS/TTL interface at 60 Hz?
The single-channel 6-bit CMOS interface requires proper trace impedance matching and short signal routing between the host controller and the panel connector. Keeping parallel data lines length-matched prevents signal skew and avoids visual artifacts in electrically noisy factory environments.
Key Parameter Overview
Technical Specifications and Operational Ratings
| Functional Category | Technical Parameter | Specification Value |
|---|---|---|
| Optical & Display | Screen Diagonal & Resolution | 5.7-inch (14 cm) | 640(RGB) × 480 (VGA) |
| Active Area | 115.2(W) × 86.4(H) mm | |
| Luminance & Contrast | 800 cd/m² (Typ.) | 400:1 (Typ.) | |
| Viewing Angle (CR ≥ 10) | 80°/80°/80°/80° (Typ.) (L/R/U/D) | |
| Electrical & Interface | Interface Type & Pin Count | 1-ch 6-bit CMOS / TTL (40-Pin) |
| Supply Voltage (VDD) | 3.3V (Typ.) | |
| Display Colors & Refresh Rate | 262K colors (6-bit) | 60 Hz | |
| Mechanical & Environmental | Outline Dimensions & Weight | 131.0(W) × 102.2(H) × 7.6(D) mm | 104g (Typ.) |
| Operating & Storage Temperature | -30°C to +80°C | |
| Backlight System | White LED (WLED), 40,000 Hours (Typ.) |
Technical & Design Deep Dive
Optical Stack Optimization and Thermal Endurance
The KOE TX14D23VM5BAB is built on transmissive TFT-LCD technology paired with an optimized White LED backlight array. Achieving 800 cd/m² luminance in a compact 5.7-inch envelope requires balancing high optical output against localized thermal accumulation. Think of the optical stack as a precision heat-dissipating window: the liquid crystal fluid must remain stable while the high-power backlight operates behind it.
How does the panel maintain liquid crystal response in freezing temperatures? Standard commercial fluids become sluggish near 0°C, causing severe ghosting. The wide-temperature liquid crystal formulation in the TX14D23VM5BAB preserves liquid fluidity down to -30°C. This prevents response degradation and ensures instantaneous graphic updates in cold-climate installations. Learn more about display thermal robustness in our guide to industrial TFT-LCD technology.
From an electrical perspective, the 3.3V logic supply integrates seamlessly with modern microcontrollers, FPGAs, and application processors. The 40-pin parallel TTL interface delivers direct RGB pixel data without the latency overhead of serial conversion bridges, supporting deterministic user interface refresh cycles.
Application Scenarios & Value
Deployment in Field Machinery and Industrial Controls
Outdoor industrial HMIs face dual environmental challenges: intense sunlight washout and wide diurnal temperature swings. In heavy machinery control units, operators view diagnostic panels under unshaded ambient light. If an operator cannot read hydraulic pressure warnings due to low panel luminance, equipment safety is compromised. Using an 800 cd/m² display acts like adding a high-power spotlight behind an image: it cuts through ambient daylight glare to preserve actionable diagnostic data. Explore engineering strategies for harsh settings in our guide to sunlight-readable HMIs.
What makes this panel suited for mobile agricultural and construction terminals? Its wide -30°C to +80°C operational range guarantees instant cold starts in winter without requiring external heating elements. For systems demanding larger active areas or alternate form factors, developers may evaluate the related TX16D20VM5BAA or the 7.0-inch TX18D11VM1CAA.
For engineering support, availability inquiries, and rapid quoting on the KOE TX14D23VM5BAB and complementary display components, reach out to our technical distribution specialists today to accelerate your product design cycle.
