132×64 COG LCD Display STN ST7567

I. Product Detailed Introduction

The HTG13264I-05G-10H10-V01 is a high-quality monochrome graphic dot matrix LCD module manufactured using COG (Chip on Glass) technology. By bonding the LCD driver chip directly onto the glass panel, the COG process significantly streamlines the module’s external physical structure, effectively reduces the overall device footprint, and markedly enhances the product’s resistance to shock and electromagnetic interference.

This module features a core resolution of 132×64 pixels, offering a wider horizontal viewing area than conventional 128×64 screens on the market. This provides extra space for displaying additional characters or richer graphic edge details. The display mode is STN-YG, positive transmissive, with a high-brightness green LED backlight. Whether in dimly lit factory environments, intense glare, or complex outdoor operating conditions, its 6H viewing angle ensures excellent clarity and color contrast.

At the hardware level, this 132×64 dot matrix display integrates the high-performance ST7567 single-chip LCD controller and driver IC. It supports a 4-wire SPI serial interface, as well as 8080 and 6800 parallel interfaces. The 132×64 COG module exhibits excellent low-power DC electrical characteristics and high-speed AC timing response, and operates stably across a wide temperature range from -20℃ to +75℃.

II. Core Technical Highlights of 132×64 COG LCD Display

• Extra Horizontal Space (132×64 Resolution): Compared to the standard 128×64 resolution, the additional 4 horizontal dots are ideal for multi-character displays, continuous status indicators, and precise instrument scale drawing.
• Ultra-Slim and Lightweight COG Architecture: With external dimensions of just 57.0×37.0x4.6mm, this module is extremely thin. The elimination of the traditional PCB and metal frame structure makes it perfectly suited for handheld, portable hardware devices with stringent size requirements.
• Low Power Consumption and Wide Voltage Drive: The logic supply voltage supports 3.0V to 3.6V (typical 3.3V), allowing direct compatibility with the 3.3V TTL levels of modern mainstream microcontrollers. The backlight provides balanced and bright green illumination at a typical drive of 3.0V and 45mA.
• Versatile Interface Compatibility: The hardware natively supports a high-speed 4-wire SPI serial interface and can be adapted at the chip level for 8080 and 6800 8-bit parallel buses, greatly facilitating low-level driver porting across different development platforms.
• Highly Integrated Power System: With the built-in ST7567 driver IC, the module integrates internal voltage conversion (boost), regulation (stabilization), and voltage follower functions. Externally, only basic 1μF filtering capacitors are required to achieve stable, clear dynamic contrast performance.
• Industrial-Grade Durability and Quality Standards: The product operates across a temperature range of -20℃ to +75℃ and undergoes rigorous quality defect inspections—including checks for black/white spots and lines, polarizer bubbles, and contrast uniformity—before shipment, ensuring no major failures such as system halts or disconnections occur in extreme environments.

III. Pin Function Description 

This 132×64 COG module features 10 core hardware pins, arranged compactly with clearly defined functions.

IV. Core Application Scenarios

With its high definition, ultra-low power consumption, and wide temperature tolerance, this 132×64 graphic LCD module is widely applied across various modern smart terminals and industrial products, including:

• Industrial control and automation equipment: Small PLCs, inverter operator panels, industrial HMI field display terminals, industrial field testers, etc.
• Smart instrumentation: Electronic power meters, digital multimeters, environmental water/air quality detectors, in-vehicle measurement instruments, smart thickness gauges.
• Medical and health terminals: Portable oximeters, handheld heart rate monitors, laboratory analyzer operation interfaces, small electronic blood pressure monitors.
• Communication and security hardware: Two-way radio displays, access control attendance terminals, smart gateway configuration panels, IP phone interfaces.
• Smart warehousing and office equipment: Barcode scanner base displays, portable label printers, smart storage locker status indication screens, electronic office attendance machines.

V. Technical FAQ of 132×64 COG LCD Display

Q1: What is the difference between the 132×64 resolution of the HTG13264I module and a regular 128×64 screen?

A1: The main physical difference is the 4 additional horizontal pixels (132 columns vs. 128 columns). This provides more generous horizontal space for UI design, allowing for the complete display of wider bordered instrument graphics or specific status icons.

Q2: How can power consumption be minimized for this 132×64 dot matrix display in low-power portable devices?

A2: Extreme power savings can be achieved through both LCD drive control and backlight management:

Enter Power Save Mode via Hardware/Software Commands: When the device enters standby or sleep mode, it is recommended to send a command sequence via the control lines—Turn Display OFF (command 0xAE) plus Entire Display ON (command 0xA5). At this point, the ST7567’s internal oscillator circuit, boost converter, and voltage follower will all cease operation, reducing the internal quiescent current to the microampere (μA) range.

Cut Off Backlight (LED Backlight) Current: The green LED backlight of this module consumes significantly more power (typical 45mA) than the logic section. In portable designs, the backlight should not be connected directly to the power supply. Instead, it should be connected via a transistor or MOSFET to a PWM pin of the MCU. After 10 seconds of user inactivity, the software can gradually reduce the PWM duty cycle until the backlight is completely turned off, maximizing battery life.