Huayuan Display Launches HYH034‑CS01 3.4‑Inch HDMI Round Touch Display Module for Embedded Interactive Innovations

Shenzhen Huayuan Display Control Technique Co., Ltd. officially releases the HYH034‑CS01, 3.4‑inch HDMI round touch display module. Targeting Raspberry Pi development, embedded devices, DIY projects and compact smart terminals, this round high‑definition touch display delivers HDMI input, IPS wide‑view performance and industrial‑grade wide‑temperature capability, bringing a brand‑new option for round‑shape human‑machine interaction solutions.

Round displays are widely adopted in smart meters and control panels. However, many existing round screens suffer from poor interface compatibility and complicated debugging. The HYH034‑CS01 is optimized to resolve these pain points. Equipped with an HDMI video input port, it connects directly to standard HDMI sources including Raspberry Pi boards, PCs and TV‑boxes without heavy low‑level modification, greatly shortening development and integration cycles.

For display performance, the module features a native 800×800 resolution with an IPS panel for wide‑angle viewing. Backlight brightness reaches 350 cd/m² and supports PWM brightness adjustment to fit various ambient lighting conditions. It adopts JD9365 display driver chip with MIPI interface for stable image output. Two variants are available: touch and non‑touch versions. The touch variant integrates the GT911 capacitive touch IC supporting single‑point and multi‑point touch. Touch signals are transferred via USB. I/O resources of the host are only consumed when touch function is activated; no I/O is occupied for display‑only operation for high resource efficiency.

Great system compatibility is one of its key advantages. It works with most Raspberry Pi hardware revisions and natively supports Raspberry Pi OS, Ubuntu and Windows. Developers only need to install the touch driver to enable full touch functionality, suiting both hobbyist DIY projects and commercial embedded deployments.

In terms of hardware reliability, HYH034‑CS01 runs on 5 V input with 5 V 2 A USB power supply. Operating temperature ranges from ‑20 ℃ to 70 ℃, with storage temperature covering the same span, making it suitable for industrial and outdoor applications. It has passed Class‑B EMC and Level‑3 ESD tests for strong anti‑interference performance. The overall module dimension is 114.2 × 112.7 mm with an active view area of 87.6 × 87.6 mm. The driver board measures 45 × 55 mm and comes with mounting holes for easy mechanical integration into end‑products.

Key Features• 

✅ 3.4‑inch round TFT display, 800×800 resolution, IPS wide viewing angle, 350 cd/m² brightness with PWM dimming support•

✅ HDMI video input plus USB touch interface; plug‑and‑play for Raspberry Pi, PC, TV‑box and other HDMI sources• 

✅ Multi‑OS support: Raspberry Pi OS / Ubuntu / Windows; zero I/O consumption for display‑only mode; optional touch function• 

✅ GT911 capacitive multi‑touch; touch‑enabled and touch‑free versions for selection• 

✅ Industrial wide temperature: ‑20 ℃ ~ 70 ℃; Class‑B EMC & Level‑3 ESD for harsh operating environments• 

✅ Mature mechanical outline with pre‑drilled mounting holes for convenient integration

Application Scenarios

Raspberry Pi DIY projects, circular smart control panels, compact HMI terminals, instrument & meter displays, smart home control terminals, mini secondary monitors, various special‑shape embedded display developments.Huayuan Display’s new HYH034‑CS01 is now available for shipment. HDMI cable and USB cable are included in standard package. A 12‑month warranty is provided counting from production date. Developers and system integrators are welcome to inquire for datasheets, samples and technical support to explore more possibilities of round‑shape display applications.