Sharp LM077VS1T01 is a classic 7.7-inch VGA color CSTN integrated LCD module, widely factory-installed on vintage industrial automation equipment, injection molding machines, small CNC controllers, textile printing machinery and old PLC HMI terminals.
Adopting mature Normally Black color CSTN liquid crystal technology, it is specially optimized for long-term static text, numerical parameters, flow curves and simple color industrial interface display under 24/7 continuous indoor factory workshop operation. It features universal 31-pin 8-bit parallel TTL RGB bus, fully compatible with early industrial MCU mainboards without LVDS signal output, eliminating extra signal conversion hardware during screen replacement.
| Parameter | Technical Specification |
|---|
| Model Number | LM077VS1T01 |
| Manufacturer | Sharp Corporation |
| Diagonal Size | 7.7 inches |
| Native Resolution | 640(RGB) × 480 VGA, 4:3 Aspect Ratio, 103 PPI |
| LCD Technology | Color CSTN / FSTN-LCD, Transmissive, Normally Black |
| Color Depth | 4096 display colors (12-bit RGB) |
| Signal Interface | Single-channel 8-bit Parallel TTL RGB, 31Pin Connector, 5V Logic Voltage |
| Backlight System | Dual side CCFL lamps, external dedicated dual-channel CCFL inverter required, 40,000 hrs typical lifespan |
| Typical Brightness | 150 cd/m² |
| Typical Contrast Ratio | 30:1 |
| Viewing Angle (L/R/U/D, CR≥5) | 50° / 50° / 30° / 40°, optimal viewing: 6 o’clock |
| Total Response Time (Tr+Td) | 380 ms typical |
| Refresh Rate | 60 Hz |
| Pixel Pitch | 0.246 × 0.246 mm |
| Active Display Area (AA) | 157.42 mm (W) × 118.06 mm (H) |
| Overall Outline Dimension | 195.2 mm (W) × 137.5 mm (H) × 15.0 mm (D) |
| Surface Treatment | Matte anti-glare polarizer, 2H scratch-resistant coating |
| Net Weight | ~790 g typical |
| Operating Temperature Range | 0 ℃ ~ +50 ℃ |
| Storage Temperature Range | -20 ℃ ~ +60 ℃ |
| Touch Function | No integrated touch panel |
| Compliance Standard | RoHS Lead-Free Certified, Mercury warning for CCFL backlight |
| Product Status | Officially discontinued legacy industrial CSTN module, only A-grade tested spot stock for equipment repair cross-replacement |
Application Scenarios
Legacy injection molding & blow molding machinery auxiliary main HMI operation panels
Old-generation small CNC machine tool operator display terminals
Textile, printing & packaging equipment control screens
Portable industrial test, measurement & analytical instruments
Frequency converter, hydraulic power cabinet parameter monitoring terminals
Environmental monitoring & power distribution cabinet local display screens
Cross-replacement spare screen for all Sharp LM077VS series 7.7" CSTN color modules
Light industrial embedded PLC static parameter & curve display equipment
FAQ
Q1: What backlight configuration does LM077VS1T01 adopt? Is an external inverter required?
A1: Dual edge CCFL lamps without built-in driving circuit. A matched dual-channel CCFL inverter board is mandatory; single-lamp inverter cannot drive this module normally.
Q2: What signal interface does this screen use, TTL or LVDS?
A2: 31-pin 8-bit parallel TTL RGB with 5V logic voltage, not LVDS; designed for vintage industrial controllers lacking LVDS output function.
Q3: Can LM077VS1T01 replace other LM077VS series sub-models directly?
A3: Yes, consistent outline dimensions, mounting holes, 31-pin TTL pinout and dual CCFL backlight structure, plug-and-play without hardware or software modification.
Q4: What temperature environment is suitable for this Sharp CSTN screen?
A4: Operating temperature range 0℃ ~ +50℃, storage temperature -20℃ ~ +60℃. Only applicable for indoor constant-temperature factories and laboratories; unstable display performance will occur in cold unheated workshops or high-temperature machinery cabins exceeding the rated range.
Q5: What are the main limitations of CSTN compared with TFT LCD panels?
A5: Slow response speed, narrow vertical viewing angle, low brightness and limited 4096-color gamut; it cannot meet demands for high-speed dynamic images, machine vision inspection or medical high-precision grayscale display.

