LS096I06-S-V1: 0.96-Inch 80×160 TFT LCD Display Module, TN, SPI Interface, 262K Colors, ST7735S Driver IC
Product Subtitle / Keywords
0.96 Inch Display, 80(RGB)*160 Resolution, TN (Twisted Nematic) Transmissive Display Mode, a-Si TFT-LCD Module, COG+FPC+B/L Module Type, 262K Display Colors, 4-Line Serial Interface (SPI), Driver IC ST7735S, Supply Voltage VDD=2.8V (Typ), IOVCC=1.8V (Typ), Backlight LED Current ILED=40mA Max, LED Circuit Single Chip White LED, Operating Temp -20°C~70°C, Storage Temp -30°C~80°C, Storage Humidity 20~90%RH, Module Size 13.5×27.95×1.5 mm, Active Area 10.8×21.7 mm, Pixel Pitch 0.045×0.1356 mm, Luminance 360 cd/m² (Typ) at If=20mA, Contrast Ratio 800:1 (Typ), Viewing Angle 80° Horizontal / 70° Vertical (CR>2), Response Time Tr=10ms / Td=20ms, Lesson Smart Display Technology Co., Ltd.
1. Executive Summary & Product Positioning
The LS096I06-S-V1, developed by Lesson Smart Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a 0.96-inch, 80(RGB)×160 resolution transmissive type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module. The specification (Revision 1.0, dated from the document footer) details its general description, technology specifications (including mechanical, interface, electrical, and optical parameters), reliability test conditions, handling precautions, and outline drawing.
This product specification serves as the definitive technical document, defining the module's compact size, TN transmissive technology, COG+FPC+B/L package, 4-line SPI interface, and specific power supply requirements. The unequivocal recommendation for engineers is to strictly adhere to the specified power supply voltages (VDD=2.8V Typ, IOVCC=1.8V Typ), the detailed 4-line serial interface timing, and the backlight current limitations (ILED Max 40mA) to ensure reliable performance and optimal display quality.
2. Detailed Product Overview & Architecture
- Core Technology: Transmissive type a-Si TFT (amorphous silicon thin film transistor) LCD technology. The module is composed of a TFT-LCD panel, a driver circuit and a backlight unit.
- Display Resolution: 80(RGB)*160 pixel array.
- Display Mode: Normally Black TN (Twisted Nematic) Transmissive.
- Interface Type: 4-line Serial Interface (SPI) with Chip Select (CS), Serial Clock (SCL), Serial Data (SDA), and Data/Command select (RS/D/CX) lines.
- Display Colors: Up to 262K colors.
- Module Construction: COG+FPC+B/L (Chip-On-Glass + Flexible Printed Circuit + Backlight).
- Power Architecture: Requires a dual-rail power supply: Logic/IO (IOVCC) and Main (VDD). Absolute maximum ratings: IOVCC max 4.6V, VCC max 4.6V, VIN max VDD+0.3V.
- Driver IC: ST7735S (as indicated in the outline drawing specification text).
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Parameter | Specification | Unit |
|---|---|---|
| Model | LS096I06-S-V1 | - |
| Module Type | COG+FPC+B/L | - |
| LCD Size (Diagonal) | 0.96 | inch |
| Resolution | 80(RGB) × 160 | pixel |
| Display Mode | Normally Black / Transmissive | - |
| Display Number of Colors | 262K | - |
| Module Size (W×H×T) | 13.5 × 27.95 × 1.5 | mm |
| Active Area (H×V) | 10.8 × 21.7 | mm |
| Pixel Pitch | 0.045 (H) × 0.1356 (V) | mm |
| Pixel Arrangement | RGB-stripe | - |
| Driver IC | ST7735S | - |
| Interface | 4-line Serial Interface (SPI) | - |
| Backlight Type | Single White LED (1 chip) | - |
| Operating Temperature | -20 ~ +70 | °C |
| Storage Temperature | -30 ~ +80 | °C |
| Storage Humidity | 20 ~ 90 | %RH |
| Supplier | 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co.,Ltd) | - |
| Document Revision | Revision 1.0 | - |
3.2 Electrical & Interface Specifications
3.2.1 Absolute Maximum Ratings
| Item | Symbol | Min. | Max. | Unit |
|---|---|---|---|---|
| Power Voltage | IOVCC | -0.3 | 4.6 | V |
| Power Voltage | VCC | -0.3 | 4.6 | V |
| Power Voltage | VIN | -0.3 | VDD+0.3 | V |
| Backlight forward current | ILED | 0 | 40 | mA |
| Operation Temperature | TOP | -20 | 70 | °C |
| Storage Temperature | TST | -30 | 80 | °C |
| Storage Humidity | HD | 20 | 90 | %RH |
3.2.2 Pin Description (Connector)
| Pin No. | Symbol | Function |
|---|---|---|
| 1 | LEDA | Power Supply For LED Backlight Anode Input. |
| 2 | GND | Ground. |
| 3 | RES | Reset Signal input pin. |
| 4 | RS | Register selection signal (D/CX). |
| 5 | SDA | Serial data input/output pin. |
| 6 | SCL | Serial clock pin. |
| 7 | VDD | Power supply. |
| 8 | CS | Chip selection signal. |
3.2.3 LED Backlight Specification (1 White Chip)
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Forward Voltage | Vf | If=20mA | 2.8 | 3.0 | 3.2 | V |
| Uniformity (with L/G) | Δ Bp | If=20mA | 75 | 80 | - | % |
| Luminance for LCM | / | If=20mA | 280 | 360 | - | cd/m2 |
| Backlight Power Consumption | WBL | If=20mA | - | 64 | - | mW |
| Note: The backlight circuit uses a single white LED. The LED circuit diagram shows a simple single diode configuration. |
3.2.4 Serial Interface Timing (4-line Serial)
Key timing parameters at Ta=25°C, VDDI=1.65~3.7V, VDD=2.5~4.8V (from specification table):
| Signal | Symbol | Parameter | MIN | MAX | Unit |
|---|---|---|---|---|---|
| CSX | TCSS | Chip Select Setup Time (Write) | 45 | - | ns |
| CSX | TCSH | Chip Select Hold Time (Write) | 45 | - | ns |
| CSX | TCHW | Chip Select \"H\" Pulse Width | 40 | - | ns |
| SCL (Write) | TSCYCW | Serial Clock Cycle | 66 | - | ns |
| SCL (Write) | TSHW/TSLW | SCL \"H/L\" Pulse Width | 15 | - | ns |
| SCL (Read) | TSCYCR | Serial Clock Cycle | 150 | - | ns |
| D/CX | TDCS/TDCH | D/CX Setup / Hold Time | 10 | - | ns |
| SDA | TSDS/TSDH | Data Setup / Hold Time | 10 | - | ns |
| SDA | TACC | Access Time | 10 | 50 | ns |
Note: The power sequence diagram illustrates the relationship between VDD, RESX, and CSX signals during power-up and power-down.
3.3 Electro-Optical Characteristics
| Parameter | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Viewing Angle (Horizontal) | Θ3 / Θ9 | CR>10 | 80 | 85 | - | ° |
| Viewing Angle (Vertical) | Θ12 / Θ6 | CR>10 | 80 | 85 | - | ° |
| Contrast Ratio | CR | Θ=0° | 700 | 800 | - | - |
| NTSC | % | Θ=0° | 55 | 60 | - | % |
| Transmittance | T% | Θ=0° | 4.3 | 4.8 | - | % |
| Response Time (Tr+Td) | Tr/Td | - | - | 30 | - | ms |
Note: The specification also defines color reproduction chromaticity coordinates for Red (Rx/Ry), Green (Gx/Gy), and Blue (Bx/By) filters measured at Θ=0° with typical values.
3.4 Reliability Test Conditions
| Item | Test Conditions | Remark |
|---|---|---|
| High Temperature Storage | Ta = 70°C | 120hrs |
| Low Temperature Storage | Ta = -20°C | 120hrs |
| High Temperature Operation | Ts = 60°C | 120hrs |
| Low Temperature Operation | Ta = -10°C | 120hrs |
| Operate at High Temperature and Humidity | 60°C, 90%RH max. | 120hrs |
| Thermal Shock | -20°C ~ +70°C, 10 cycles, 1Hrs/cycle | Non-operation |
| Vibration Test | Frequency:10Hz~55Hz~10 Hz, Amplitude:1.5mm, X,Y,Z direction for total 3hrs | Packing Condition |
| Dropping Test | Drop to the ground from 1M height one time every side of carton. | Packing Condition |
| Electrostatic Discharge | Contact=±4KV, class B; Air=±8KV, class B | - |
4. Application Guidelines & Critical Notes
Intended Use
- Compact 0.96-inch display applications for wearables, smart home devices, handheld instruments, or any application requiring a small, high-quality color display.
- Systems using a standard 4-line SPI interface for communication with a host microcontroller.
- Low-power battery-operated applications due to the small size and efficient backlight.
Critical Design Considerations
- SPI Interface (4-Line): The module uses a 4-line SPI interface. Ensure the host microcontroller is configured to generate the correct SPI signals: CS (Chip Select), SCL (Serial Clock), SDA (Data), and RS (Data/Command select). The timing parameters are clearly defined in Section 5.8 of the spec.
- Power Supply (Dual Rail VCC and IOVCC): The module requires stable power supplies within their operating ranges. VDD (VCC) is typically 2.8V, and IOVCC is typically 1.8V for the interface logic.
- Backlight Driving (Constant Current vs. Absolute Max): The backlight LED has an absolute maximum forward current (ILED) of 40mA. However, the LED backlight specification table shows typical operation at 20mA (If=20mA) to achieve the stated luminance of 360 cd/m². The forward voltage (Vf) is typically 3.0V at this current. A series current-limiting resistor or a constant current circuit should be used to limit the current to 20mA and never exceed 40mA.
- Handling Precautions: The LCD panel consists of two thin glass plates with polarizers that are easily damaged. Follow the handling precautions in Section 7 of the spec:
- Use soft cloth with Isopropyl alcohol or Ethyl alcohol for cleaning.
- Do NOT use water, aromatics, or strong solvents on the display.
- Avoid materials containing Chlorine (Cl) or Sulfur (S) near the ITO pads to prevent corrosion.
- Environmental Limits: The module is tested for storage at -30°C to +80°C and operation at -20°C to +70°C. Storage humidity must be kept between 20% and 90% RH. Usage under the maximum operating temperature (50%Rh or less) is required to prevent electrochemical reactions and terminal corrosion.
- Direct Current Drive: An electrochemical reaction due to direct current causes LCD's undesirable deterioration. Therefore, the use of direct current drive should be avoided.
- Low Temperature Operation: Response time will be extremely delayed at lower temperatures than the operating temperature range. Display quality will return to normal within the specified range.
- Observe standard ESD precautions during handling and assembly.
- Do not disassemble or modify the LCD module.
- All NC (No Connection) pins should be left open.
- The specification is marked as Revision 1.0. Ensure this is the approved version for production.
5. Conclusion & Design-In Support
The LS096I06-S-V1 specification details a standard 0.96-inch TN TFT LCD module with a 4-line SPI interface, offering good optical performance (360 cd/m² luminance, 800:1 CR, 60% NTSC) in a highly compact 1.5mm thick package. It is a cost-effective and reliable choice for many embedded display applications.
Key Strengths
- Compact Size (0.96 Inch, 1.5mm Thick): Extremely thin profile for integration into space-constrained designs.
- Standard SPI Interface: Simple and common interface compatible with a wide range of microcontrollers.
- Good Brightness (360 cd/m² Typ): Adequate for bright indoor environments.
- Established Reliability Testing: The module is qualified under standard temperature, humidity, thermal shock, vibration, and ESD tests.
- Clear Product Spec: The document provides all necessary electrical, optical, mechanical, and handling information, including the crucial absolute maximum ratings and backlight specifications.
Main Design Focus
- The key design tasks are driving the backlight with a constant current of 20mA (max 40mA absolute) and ensuring the LED forward voltage (Typ 3.0V) is accounted for, and implementing the 4-line SPI protocol with correct timing (clock cycle down to 66ns for write operations) and proper power sequencing (dual rail VDD and IOVCC) and reset handling.
- Supporting requirements: Provide a stable 2.8V supply for VDD and a 1.8V supply for IOVCC. Design a secure mechanical housing that avoids pressure on the display area. Ensure the FPC is handled carefully and not bent sharply near the glass edge or connector.
This module is a solid and well-documented choice for any engineer looking to add a small, reliable color display to their product.
