LQ156M1LG21 Overview
Sharp LQ156M1LG21 is a 15.6-inch diagonal a-Si TFT-LCD display panel. This module is a color active matrix LCD module incorporating amorphous silicon TFT(Thin Film Transistor). It is composed of a color TFT-LCD panel, driver ICs, control circuit, power supply circuit and a White-LED Backlight unit. Graphics and texts can be displayed on a 1920 × RGB x 1080dots panel with about 16million colors by using LVDS (Low Voltage Differential Signaling) and supplying +12.0V DC supply voltages for TFT-LCD panel driving and +12.0V DC supply voltage for backlight.
LQ156M1LG21 Key Specs
The LQ156M1LG21 LCD features Full HD resolution and high brightness performance. This section provides an overview of its key specifications, including size, resolution, brightness, interface type, and other essential parameters.
Parameter | Value |
Brand | |
Model | LQ156M1LG21 |
Size | 15.6" |
Composition | LCM |
Resolution | 1920(RGB)×1080, FHD 141PPI |
Luminance | 600 cd/m² (Typ.) |
Contrast Ratio | 800 : 1 (Typ.) (TM) |
Viewangle | 80/80/80/65 |
Color Depth | 16.7M 76% NTSC |
Light Source | WLED , 50K hours , With LED Driver |
Interface Type | LVDS (2 ch, 8-bit) , 30 pins Connector |
Active Area | 349.0(W)×198.4(H) mm |
Pixel Format | RGB Vertical Stripe |
Frame Rate | 60Hz |
Touchscreen | Without |
Voltage Supply | 3.3V (Typ.) |
Weight | 950g (Max.) |
Outline Size | 370(W)×217(H)×9.8(D) mm |
Max Ratings | Operating Temperature: 0 ~ 70 °C ; Storage Temperature: -30 ~ 70 °C |
Refer to LQ156M1LG21 Datasheet PDF
LQ156M1LG21 Display Features
The LQ156M1LG21 delivers balanced industrial-grade display performance, combining clarity, brightness, and response speed, making it suitable for a wide range of industrial and embedded applications.
l 1920×1080 Full HD resolution, ideal for detailed UI interfaces and complex data visualization
l Pixel density of approximately 141 PPI, meeting the requirements of industrial HMI and control systems
l Supports clear presentation of both text and graphics, improving readability and user interaction experience
l 600 nits high-brightness design, significantly enhances visibility in strong ambient light conditions
l Supports multi-level backlight adjustment, allowing flexible control of power consumption and brightness based on environment
l Fast response time (about 30 ms), suitable for dynamic interfaces and basic video display
l Relatively low cost, making it suitable for large-scale industrial equipment applications
l Typical TN panel characteristics with limited vertical and off-angle viewing performance
LQ156M1LG21 LVDS Interface Block Diagram
The interface block diagram illustrates that the LQ156M1LG21 adopts a dual-channel 8-bit LVDS architecture, consisting of ODD and EVEN parallel channels to reduce transmission frequency and electromagnetic interference.
On the host side, the controller outputs 8-bit RGB and control signals (DE), which are converted by a transmitter IC (such as THC63LVD823B) from parallel TTL signals into serial differential signals. Each channel contains 4 pairs of data differential lines and 1 pair of clock differential lines (the odd channel uses RAIN0–3 and RACKIN, while the even channel uses RBIN0–3 and RBCKIN).
On the LCD panel side, the receiver integrated within the control IC, together with a PLL circuit, synchronously receives the two-channel differential data streams. After LVDS-to-parallel TTL decoding, the signals are restored and used to drive internal circuits, ultimately enabling 1080P full HD image rendering.
LQ156M1LG21 Electrical Characteristics & Power Management
The design requirements of the LQ156M1LG21 in terms of electrical characteristics and system-level power management are critical for system stability, power optimization, and electromagnetic compatibility (EMC) design.
Power Supply Specifications
l Logic voltage (VDD): typically 3.3V (±10%) for T-CON and driver circuits. Proper power-on sequencing is required to avoid inrush current damage.
l Backlight voltage (VLED): typically 12V or 24V. Due to high current, wider power traces and close placement to the power source are recommended to reduce losses.
Power Optimization & PWM Dimming
l Full-load power consumption: about 10W–15W at maximum brightness, with backlight accounting for over 80% and logic power under 2W.
l PWM control: the host can adjust backlight duty cycle via PWM. Reducing to 30%–50% during idle or low power mode can cut backlight power by over 50%. Recommended PWM frequency is 200Hz–2kHz to avoid flicker.
EMC/EMI Protection
l Impedance matching: dual-channel LVDS routing must maintain 100Ω differential impedance; keep cables short and use shielded twisted pairs.
l Spread spectrum (SSC): enabling LVDS clock spread spectrum helps reduce EMI peaks by dispersing radiation energy, minimizing interference to sensitive medical or industrial equipment.
l Grounding & filtering: the metal frame should connect to chassis ground with low impedance; add decoupling capacitors and ferrite beads at power inputs to suppress high-frequency noise.
LQ156M1LG21 Typical Applications for Industrial and Gaming
The LQ156M1LG21 LCD panel is suitable for industrial automation, embedded systems, and certain entertainment and gaming applications. The following outlines its practical application value and typical use cases.
1. Industrial Automation Human-Machine Interface (HMI)
The LQ156M1LG21 is widely used as a core display unit in industrial HMI systems, providing real-time visualization of machine status, parameter settings, and alarm information.
l PLC control panels
l Production line operation screens
l SCADA monitoring terminals
2. Industrial Embedded Control & Edge Computing Devices
This display is commonly integrated into embedded industrial PCs and edge computing systems for data monitoring, logic control, and visualization interfaces.
l Industrial PCs (IPC)
l CNC control systems
l Automated inspection equipment (AOI/ATE)
3. Outdoor and Semi-Outdoor Information Terminals (High-Brightness Applications)
With its ~600 nits brightness, the panel maintains stable visibility under strong ambient light, making it suitable for public information and interactive systems.
l Traffic information display screens
l EV charging station interfaces
4. Commercial Entertainment & Light Gaming Terminals
In non-high-end gaming systems, the panel provides stable 1080P output with balanced cost and reliability, suitable for long-term commercial operation.
l Arcade gaming machines
l Gambling entertainment terminals
5. Simulation Training & Professional Virtual Systems
The LQ156M1LG21 is used in simulation systems requiring stable image output and high-resolution detail rendering, suitable for long-duration training environments.
l Flight simulation systems
l Driving simulators
Operation Precautions
a) Avoid prolonged exposure to strong UV light, as it may permanently damage the panel. Use proper shielding in high-UV environments.
b) Avoid long-term exposure to oxidizing or reducing gases during handling and storage. Chemicals such as solvents, adhesives, and resins may cause corrosion or discoloration of the module.
c) Prevent contamination from materials such as epoxy, silicone adhesives, and tray agents, which may degrade optical quality or cause display issues. Ensure material compatibility in manufacturing and shipping processes.
d) Do not use polychloroprene (CR), as it releases chlorine gas that can damage LCD connection reliability.
e) Avoid displaying fixed images for long periods to prevent image retention; use a screen saver when necessary.
f) Do not store outside the rated temperature range, as the LC material may freeze or degrade permanently. Keep storage conditions near room temperature.
g) Take precautions against condensation when operating in high temperature and high humidity environments.
ANDE Electronics: Reliable LCD Display Solutions
As a professional display supplier, Ande Electronics is committed to providing LCD modules that meet modern application needs.
We offer not only high-quality display products but also reliable technical support and flexible purchasing options. Our experienced engineering team works closely with customers to provide guidance on module selection, integration, and optimization.
Choosing Ande Electronics, then engineers and manufacturers will gain a partner focused on quality, innovation, and efficiency.
