logo
China Rongguang Hui Optoelectronics Science and Technology
Rongguang Hui Optoelectronics Science and Technology
COMPANY INTRODUCTIONEstablished in 2011,Rongguanghui Optoelectronics Science and Technology Co., Ltd. is a leading high-tech enterprise specializing in the R&D, production, sales, and technical services of small and medium-sized liquid crystal display modules (LCM) and touch displays.We are dedicated to advancing the field of LCM and touch display technology, offering a range of differentiated products such as semi-transparent solar screens, IPS full-view screens, special-shaped cut round ...
Learn More
Request A Quote
No. of Employees
200+
Annual Sales:
10000000+
Year Established:
2011
Export p.c
80%
WE PROVIDE
THE BEST SERVICE!
You can contact us in various ways
Contact Us
Tel
86--075523210048
Fax
86--075523210048
WhatsApp
Skype
SKY:allan7810@126.com
WeChat
Allan7810

quality TFT LCD Display & IPS TFT LCD Display factory

IPS TFT LCD Display 4.3 Inch LCD 480*272 Support Differentiated Vehicle LCD Display With 300cd/M Brightness Video

IPS TFT LCD Display 4.3 Inch LCD 480*272 Support Differentiated Vehicle LCD Display With 300cd/M Brightness

Size: 4.3 Inch

Resolution: 480X(RGB)X272

Viewing Direction: ALL O’clock

Get Best Price
IPS TFT LCD HD Display 3.2 Inch Industrial Digital 240*320 Resolution Video

IPS TFT LCD HD Display 3.2 Inch Industrial Digital 240*320 Resolution

Size: 3.2inch

Resolution: 240* (RGB )*320

Response Time: 30ms

Get Best Price
RGB interface 3.5 Inch IPS TFT LCD Touch Screen 640*480 IPS Full Viewing Angle Video

RGB interface 3.5 Inch IPS TFT LCD Touch Screen 640*480 IPS Full Viewing Angle

Size: 3.5inch

Resolution: 640(RGB)X 480

Viewing Direction: ALL O’clock

Get Best Price
3.2 Inch MIPI Interface IPS 1024x768 LCD TFT Screen Display 12LEDS Backlight With 500cd/M2 Luminance Video

3.2 Inch MIPI Interface IPS 1024x768 LCD TFT Screen Display 12LEDS Backlight With 500cd/M2 Luminance

Size: 3.2Inch

Interface: MIPI

Operating Temperature: -20~70℃

Get Best Price
WHAT CUSTOMERS SAYS
Allisa Berth
After using your screens, our product quality has noticeably improved, and we’ve received great feedback from our customers! Thank you for providing such high-quality LCD
Jack Chuah
Thanks to your screens, our visuals are sharper and brightness levels are consistent. Our display quality has really taken a step up!
Mohd Amir Izuddin Bin Mohamad Ghazali
Very satisfied! The screens are easy to install, and the quality is excellent. It’s made our project run so much smoother.Looking forward to working together again!
Jason Miller
Your screens are incredibly durable. We had issues with other suppliers before, but switching to your products has saved us a lot of hassle!
Sarah Li
Working with your team has been fantastic. The screens exceeded our expectations in terms of clarity and reliability, making a real difference for our displays.
Ravi Patel
Honestly, we were a bit skeptical at first, but your screens delivered exactly what was promised. Color accuracy, brightness, durability—it’s all there.
Lucas Silva
Your team’s support has been amazing. From initial discussions to final delivery, we felt listened to and supported every step of the way. It’s refreshing to find this level of dedication
Ben Carter
We were impressed by the quality of your after-sales support. Even after installation, your team was available to answer questions and make adjustments, which shows real dedication to your customers.
David Chen
The customer service from your team has been exceptional. They were quick to answer our questions, guided us through the setup, and followed up to make sure everything was working smoothly. We felt truly taken care of.
Megan Rose
It’s rare to find such dedicated after-sales support. When we encountered a minor issue with one of the screens, your team was on it immediately and resolved it within hours. We’re impressed!
Alex Johnson
After purchasing your screens, the support didn’t stop there. You followed up with us to ensure everything was running perfectly, which made us feel valued as customers. We’ll definitely continue working with you.
Gabrielle Sanchez
Our entire experience with your after-sales team has been outstanding. They’re knowledgeable, responsive, and went above and beyond to help us integrate the screens into our existing setup. Couldn’t have asked for better support.
Jessica
It’s been a pleasure working with you. The quality and reliability of your screens have helped us make a strong impression, and our clients are noticing too!
Laura Kim
The whole process from purchasing to post-sale follow-up was seamless. Your service team is efficient, professional, and genuinely helpful. We feel confident knowing we can rely on you.
Rachel Park
From the initial consultation to delivery, your team was attentive and professional. The screens have made a noticeable impact on our store layout.
Mariah Collin
We needed screens that could handle a high-use environment, and yours have exceeded our expectations. It’s a relief to have reliable technology we can depend on
Lucy Nguyen
Thank you for being so responsive to our needs. The screens are not only high-quality but also easy to maintain, which has made all the difference.
Carlos Ruiz
It’s refreshing to work with a company that prioritizes quality and service equally. Your screens have elevated our showroom, and we’ve had positive feedback from customers.
News View More
Principle of Capacitive Touch Screen
Principle of Capacitive Touch Screen
  The structure of a capacitive touch screen mainly consists of a transparent conductive film layer coated on a glass screen, covered by a protective glass layer on top. This double-glass design thoroughly protects the conductive layer and sensors.   In addition, narrow electrodes are coated along the four edges of the additional touch screen, creating a low-voltage AC electric field within the conductive material. When a user touches the screen, a coupling capacitance is formed between the user's finger and the conductive layer due to the human body's electric field. The current generated from the electrodes flows toward the touch point, and its strength is proportional to the distance between the finger and each electrode. The controller behind the screen calculates the ratio and strength of the current to accurately determine the touch location. The double-glass design of the capacitive touch screen not only protects the conductor and sensors, but also effectively shields the screen from external environmental factors. Even if the screen is contaminated with dirt, dust, or grease, it can still accurately detect the touch location.    Capacitive touch screens offer better light transmittance and clarity compared to 4-wire resistive screens, though not as good as surface acoustic wave or 5-wire resistive screens. However, capacitive screens suffer from severe glare. The four-layer composite design used in capacitive technology results in uneven transmittance across different light wavelengths, causing color distortion. Reflections between layers also lead to blurred images and characters.    Fundamentally, capacitive screens treat the human body as one electrode of a capacitor. When a conductor comes close enough to generate sufficient capacitance with the ITO working surface, the resulting current may cause the screen to malfunction. While capacitance is inversely proportional to distance, it is directly proportional to the contact area and also depends on the dielectric constant of the medium. Therefore, large conductive surfaces like a palm or handheld metal object near the screen can cause false touches even without direct contact—especially in humid conditions. For example, simply resting your hand on the monitor, placing your palm within 7 cm, or your body within 15 cm of the screen may trigger false input.    Another drawback of capacitive screens is that they do not respond when touched with gloved hands or non-conductive objects due to the presence of more insulating material. The most significant issue with capacitive touch screens, however, is drift. Changes in environmental temperature, humidity, or electric fields can cause position drift and lead to inaccurate touches. For instance, drift can occur as the monitor heats up after being turned on, when the user’s body comes close to the screen, or even when large objects are moved nearby. If someone gathers around the screen while it’s being used, it can also lead to drift.    The root cause of this drift is an inherent technical flaw. Although environmental potential surfaces (including the user's body) may be farther from the screen than the finger, their larger area greatly affects touch position detection. Moreover, many theoretically linear relationships are actually nonlinear. For example, users with different body weights or finger moisture levels absorb varying amounts of current, and the relationship between total current change and individual electrode current changes is nonlinear. Capacitive screens use a custom four-corner coordinate system that lacks a fixed origin. When drift occurs, the controller cannot detect or correct it. After the analog-to-digital conversion at the four corners, the calculation of the X and Y coordinates in a Cartesian system based on the four current values is complex. Without a fixed origin, capacitive screen drift is cumulative, and frequent recalibration is required on-site. While the outer silica glass layer of the capacitive screen is highly scratch-resistant, it is vulnerable to impacts from fingernails or hard objects. A small chip can damage the ITO layer within. Whether the inner ITO layer is damaged during use, installation, or transport, the capacitive screen will no longer function properly.
2025-06-26
Indonesia Jakarta Exhibition
Indonesia Jakarta Exhibition
19th-21st September 2024   This is our ever first Outboud Exhibition, attended the exhibition at Jakarta, Indonesia. CEO of Rong Guang Hui and our wice manager with 1 worker and 2 suppliers went together.  
2024-11-21
China Rongguang Hui Optoelectronics Science and Technology
Contact Us
AT ANY TIME
Send your inquiry directly to us
Submit Now
Privacy Policy China Good Quality TFT LCD Display Supplier. Copyright © 2024-2025 Rongguang Hui Optoelectronics Science and Technology . All Rights Reserved.