China Heng Cheng Electronics Technology (HK) Co.,Ltd Company Cases

Smart Home LCD   Technology facilitates our daily life. As a combination of technology and practical design, our TFT display screens are portable, high-definition, low power and reliable. We provide LCD display modules in different shapes, which are compatible with various smart home devices, making users' lives more convenient and improving users experience.   1. Visual Doorbell:   Display Application: The TFT display screen can combine vision and voice, allowing users to see the real-time images and portraits of visitors through the screen, and communicate with visitors through the built-in communication device to achieve two-way dialogue. While improving the security of the access control system, it also enhances the user's perception and proactive prevention capability. Display feature: Low power consumption and long-term standby mode allowed; Touchscreen functionality; Clear display. Display recommended: Square LCD monitor|4-inch with CTP|HC040IX30021-C82V.C|480*480 pixels Rectangular LCD monitor|4.3-inch with CTP|HC043TE30029-B03V.C|480*272 pixels Vertical LCD monitor|7-inch with CTP|HC070IY30025-E24V.C|800*1280 pixels Rectangular LCD monitor|7-inch with CTP|HC070IK35026-C57V.C|1024*600pixels‌ 2. Smart Control Knob:   Display Application: Small-size round LCD displays are mostly used in smart control knobs. They can provide clear text and image display, allowing users to intuitively understand the device status and operation steps. Display feature: High resolution; Low power consumption.‌ Display recommended: Round|1.2-inch IPS LCD display|HC012IX35016-F99|240*240 pixels Round|1.77-inch IPS LCD display|HC018IX20020-F63|360*360 pixels         3. Smart Home Control Panel:   Display Application: TFT LCD displays are widely used in smart home control panels, providing a user-friendly interface for centralized control. They offer a clear and interactive platform for controlling smart home features like lighting, temperature, security systems, and entertainment systems. Display feature: TFT capacitive touchscreen enables multi-touch; Low power consumption; Low Radiation. Display recommended: Square|4-inch with CTP|HC040IX30021-C82V.C|480*480 pixels Rectangular|4.3-inch with CTP|HC043IE50029-D65V.C|480*272 pixels Rectangular|5-inch with CTP|HC050IG40029-D58V.C|800*480 pixels Bar-type|6.86-inch with CTP|HC068IS55046-D73V.C|480*1280 pixels Rectangular|7-inch with CTP|HC070IK35026-C57V.C|1024*600pixels‌ Rectangular|8-inch with CTP|HCTG080V.CP1|800*480 pixels Rectangular|10.1-inch with CTP|HCIK101V.CC|1024*600 pixels 4.Security Monitoring System:   Display Application: TFT LCD displays play a crucial role in security monitoring systems, offering a clear and efficient way to visualize and manage surveillance footage, data, and alerts. Display feature: High resolution; Wide viewing angles; Fast response times. Display recommended: Rectangular|7-inch with CTP|HCIK070V.CC|1024*600pixels‌ Rectangular|10.1-inch with CTP|HCIK101V.CC|1024*600 pixels 5. 86 Smart Switch:   Display Application: The 86 smart switch with a TFT LCD can be integrated with a smart home system, allowing users to control it remotely via a mobile app or other means. And TFT LCD displays can provide clear and intuitive interface for users to interact with the 86 smart switches. Display feature: Low power consumption; High compatibility; Excellent display effect. Display recommended: Vertical|2.8-inch with CTP|HC028IC23021-B89V.C|240*320 pixels Square|4-inch with CTP|HC040IX30021-C82V.C|480*480 pixels   6. Fire Alarm Systems:   Display Application: LCD screens are used in the fire alarm systems to display fire alarm information for users to view and operate various functions of the fire alarm systems. Display feature: High reliability; Multi-functionality. Display recommended: Rectangular|4.3-inch display|HC043IG30029-D92|800*480 pixels Rectangular|5.6-inch with RTP|AT056TN53 V.1 |640*480 pixels Rectangular|7-inch display|HC070IK40035-B95V02|1024*600 pixels 7. IP Phone:   Display Application: TFT LCD displays on the IP phone are designed to display incoming call information, call duration and recording status, ensuring that users can keep track of call details at any time. Display feature: Full-color display; Low power consumption. Display recommended: Rectangular|3.5-inch display|HC035IF30032-C37|640*480 pixels Rectangular|4.3-inch display|HC043IG30029-D92|800*480 pixels Rectangular|5-inch display|HC050IG30029-F41|800*480 pixels 8. Digital Frame:   Display Application: The digital frame uses LCD technology to bring intelligence to life. Compared with the single function of common photo frames, digital frames can play photos in a loop, adding more fun and fashion. Display feature: High color reproduction; High reliability; Portability. Display recommended: Rectangular|7-inch with CTP|HCIK070V.CC|1024*600pixels‌ Rectangular|8-inch with CTP|HC080IM30025-A2V.C|1024*768 pixels Rectangular|10.1-inch with CTP|HC101IU80046-F50V.C|1280*720 pixels   9. Household Appliances:   Display Application: LCD technology is widely used in household appliances. The TFT LCD displays can be integrated into refrigerators, washing machines, dishwashers, ovens, microwaves, coffee machines, rice cookers and water heaters, transform appliance operation from simple mechanical controls to intuitive and informative interfaces, enhancing user experience. Display feature: Low power consumption; Touchscreen functionality; Scratch-resistant surface. Display recommended: Vertical|2.4-inch with CTP|HC024IC40025-F03V.C|240*320 pixels Bar-type|6.86-inch with CTP|HC068IS55046-D73V.C|480*1280 pixels Rectangular|7-inch with CTP|HCIK070V.CC|1024*600 pixels‌ Bar-type|7.84-inch with CTP|HC078IW45048-D24V.C|400*1280 pixels Rectangular|10.1-inch with CTP|HC101IU80046-F50V.C|1280*720 pixels        

All black display effect in TFT LCD module circle is a new&trending technology, which uses a kind of special OCA glue on cover lens to do CTP assembly work. It makes the whole surface of the display unit uniformly black when the display is off and provides excellent viewing experience. It’s known that there is distinct grey shadow in active area for TFT LCD touch screens by regular OCA bonding or air bonding due to light transmission and air gap between the TFT LCD and touch panel, while for touch screens by “all-black” effect OCA bonding, the entire screen looks all black in standby mode. Because the all black display effect applies a special OCA glue named Dyed OCA glue, which accord with the black printing color on the boarders of the cover glass. All-Black Effect OCA Bonding DST/Air Bonding The dyed OCA glue is in the state of raw pulp and has good uniformity, different projects could flexibly select the different thickness and adaptive transmittance OCA to meet the TFT product requirements, as the chart below shows. "All-Black" effect TFT LCD touch screens features with low haze and excellent appearance. It’s mainly used in smart switch, smart watch, door control system, vehicle devices, industrial controllers, and so on. Our company could support this ‘All black’ technology for 3.5”~15.6” TFT LCD size with our professional R&D team and QC team, we are looking forward to your sincere and friendly cooperation from all over the world.

Commercial vehicles features with heavy sizes. Even though they are equipped with large side mirrors, there are still blind spot on the two sides of the vehicles for the drivers. When faced with terrible weather or poor road conditions, it would be a great challenge for the drivers. Tens of thousands traffic accidents happened to commercial vehicles, a third of which were caused by blind spot. And a accident of commercial vehicle is often a fatal one due to the heavy load and large inertia. Therefore the safety of commercial vehicle has gained extensive attention worldwide in automotive industry. And technical innovation is the top priority. In recent years, digital mirrors are gradually starting applying in commercial vehicles, replacing the side mirrors. The digital mirror system is know as CMS(Camera Monitor System). It uses cameras and displays instead of traditional side mirrors. With two interior display monitors and two cameras mounted on either side, the driver of commercial vehicle could fully and fastly capture the situations around the vehicles. And the wide angle cameras covers the whole area in front as well as in the two sides of the vehicle, which the traditional mirror cannot demonstrate. The system improves drivers visual range and reduces the blind spot. Hetech’s HTC-CMS is a 12.3 inch e-side mirror system specially made for commercial vehicles like trucks and agriculture vehicles. It adopts 12.3 inch 1920x720 IPS TFT Color display and high definition wide angle cameras. The two 12.3 inch monitors display what the camera captures in real time, with transmission delay less than 100ms. And the cameras have higher performance than normal automotive cameras in aspects of material, chips, coating technology, anti-vibration etc. The digital rear-view system HTC-CMS also features with blind spot detection and alarm of pedestrian, bicycles, motorcycles, and cars appeared near around. Even in low-light and rainy conditions, the cameras could still work in night vision. By replacing the side mirrors with camera monitor system, HTC-CMS enables broader field of vision for drivers, reduces the blind spot and aerodynamic drag, which increases the efficient of fuel use. Even in rainy and dark conditions, the drivers have no worries about the blurred mirrors any more.

Raspberry Pi has been quite popular worldwide as a micro computing board for learning, computing, creating embedded projects and etc. A raspberry pi board with a display unit, a keyboard and a mouse is totally a tiny desktop computer for users. It makes computing affordable and convenient for all users. With the vision of providing more options of affordable and convenient display units for the users, we’ve been developing and releasing touch displays for Raspbrry pi boards during the past years. Till now among the range of Raspberry Pi displays series, there are 5 inch 800x480 touch screen, 7inch 800x480 display, 7 inch 1024x600 touch screen, 8 inch 800x480/800x600 ouch screen, 9 inch 1024x600 touch screen, 10.1 inch 1024x600 touch screen, 10.1 inch 1280x800 touch screen and 15.6inch 1920x1080 touch screen. As you could see in the list below. Except the 7 inch 800x480 display, the others come with capacitive touch panel with HDMI interface, and micro USB or Type C power&touch interface. They work with Raspberry Pi, supporting Raspberry Pi OS/NVIDIA Jetson Nano/Ubuntu//Kali and Retropie. Meanwhile they could also work with with PC as a monitor, supporting Windows 11/10/8.1/8/7.   Some of them feature with versatile functions. Take the 10.1 inch Raspberry Pi touch screen HCIK101V.CD for an example. It uses 10.1 inch 1280x800 inch IPS panel, with hardware solution 1 , and supports max 1920x1080@60Hz. The capacitive touch panel uses tempered cover lens, the surface hardness of which reaches 6H. When working with Raspberry Pi, it supports Raspberry Pi OS/Ubuntu/Kali and Retropie. When working with PC as a monitor, it supports Windows 11/10/8.1/8/7. When working with Jetson Nano, it supports Ubuntu. It supports Microsoft XBOX360, Nintendo Switch and other game machines. 1 x 3.5mm audio out interface ( for speaker of earphone). 1 x Amplififier Interface(Supports max 2x3Wx 4Ω speaker). 1 x Raspberry Pi 5V/3A power output interface. 2 x HDMI input interface. 1 x Raspberry Pi 5V/3A power output interface. 1 x Power output interface for fan.     Heng Cheng Electronics Technology Co.,Ltd has been in display field for 13yrs, offering TFT LCD display solution for diverse market segments. Please do not hesitate to contact us through the contact info on our website if more information of our Raspberry Pi touch displays is needed.

With the popularization of electric cars, electric car charging piles will become the focus of the development in the automobile industry and energy industry. Charging piles could be used for charging various types of electric cars. and these usually are fixed outdoors. Such as on the ground or wall and installed in public buildings, residential parking lots or public electric car charging stations and etc. So how to choose the TFT LCD displays for charging piles would be very important.     1) The size of TFT LCD displays: The size of charging piles depends on your design, but it’s worth considering which is the most convenient for the user. Nowadays the most popular sizes are 7”, 10.1”&15.6”. Hengcheng Electronics have many sizes of LCD displays for your choice.And custom touch panels, cover glass, and controller boards are available on request.   2) Usually outdoor light is more sufficient, it is difficult to see the content from the low brightness of LCD displays, So the high brightness, the wide viewing angle of LCD displays is the best option. Hengcheng 10.1” TFT LCD module,   · sunlight readable · wide viewing angles · high contrast and brightness ratio · various interfaces such as LVDS/RGB · suitable for industrial use and long-term availability · Air bonding/optically bonding optional · driver boards available on requests     3) Over-high and low-temperature protection function: Considering the influence of outdoor temperature changes, if the temp. Is too lower, some components in the LCD displays might not work, while if the temp. is too higher, it would bring down the lifetime of LCD displays. So we should choose a wide temperature LCD display to assure the charging piles work normally.   4) Anti-interference: as we all know, most of the charging piles are installed on parking lots or public electric car charging stations, if there is much electronic equipment, the charging piles could be interfered. So the LCD displays must have the function of anti-interference.

The digital side-view mirror, virtual rear-view mirror, or electronic rear-view mirror is named by ISO standard organization as camera monitor system(CMS). The camera monitor system consists of external digital cameras, internal digital monitors and software processing image. The conventional glass rear mirrors can be replaced by integrated digital camera and digital monitors with better safety and better vision.   Blind Spot for Traditional View Mirror   Features of conventional rear view mirror   1) Narrow vision zone and wide blind spots. Limited by the design of the size and distance,the viewing angle of the traditional rear-view mirror is narrow and it is easy to be blocked by the C/D pillar of the bus/truck or obstructions. It greatly increases the area of the blind spot in the rear vision and makes the driver harder to grasp the road conditions behind the car in time, which is easy to cause traffic accidents such as merging, rubbing and collision.   2)The vision is not clear The view vision is not clear under special conditions.Under the circumstance of dark night, tunnel driving and stimulation of the high beam of the rear vehicle, the situation of the rear vehicle is not seen clearly. In addition, when encountering bad weather such as rain and snow, fog and haze, the rear windshield is easily covered by water, snow, dust, etc., which makes the rear-view mirror unable to play the role of observing road conditions, and increases the hidden danger to the driver's driving safety.   Camera monitor system generally has a smaller profile camera at the exterior of the vehicle as compared to mirrors and can display their captured images at screens inside the vehicle monitors.Due to the small and light weight external camera design,90% wind resistance has been reduced and 2%-3% fuel consumption would be saved.Additionally, camera monitor system can provide a wider, less obstructed, and more informative view compared to traditional mirrors.   What can camera monitor system do?   After installing the camera monitor system,wide blind spot are eliminated,camera monitor system can effectively solve the blind area of the traditional optical rear-view mirror, hanging water in rainy days and short visibility distance at night, and reduce the hidden danger of safety. It can also provide clear driving vision for drivers in weak light environment at night, strong light reflecting during the day, rain and snow weather, and improve driving safety on the road.   "There are no blind spots anywhere around the truck. And the camera monitor system gives much better clarity and perception in views to the sides and rear of the truck at night and in bad weather.” according to the end-users. Smaller exterior mirrors offer weight savings, improved aerodynamics, and enhanced fuel efficiency.   Worldwide Laws for camera monitor system   1.1 Situation of camera monitor system in China The content of GB 15084 "Motor Vehicles - Performance and Installation Requirements for Indirect Vision Devices" [3] is based on the requirements and test methods specified in UN-R46 regulations. Therefore, the installation of rear-view mirrors in China is also a mandatory requirement, and CMS is currently not allowed to replace such rear-view mirrors (except for V and VI rear-view mirrors). In 2018, the revision of the GB15084 standard was officially launched in China, and it will be possible to allow CMS to replace traditional rear-view mirrors in China in the near future.   1.2 Camera monitor system in Europe Europe, as the first region to implement UN ECE regulation No.46(R46) has allowed the usage of CMS to replace traditional rear-view mirrors in 2016. Major vehicle companies have also begun to develop related models. Currently, there are mass-produced models for passenger cars and commercial vehicles.   1.3 The situation of camera monitor system in Japan Japan makes"1958 Agreement" and has adopted UN-R46 regulations simultaneously. Now camera monitor system are allowed to replace traditional vehicle mirrors. 1.4 Camera monitor system in the United States The US regulation of FMVSS 111 for indirect vision devices stipulates that vehicles must be equipped with physical rear-view mirrors, and camera monitor system is not yet allowed to replace mirrors. In March 2014, the Alliance of Automakers and Tesla Motors petitioned NHTSA to update FMVSS 111 to bring camera monitor system compliance. Because NHTSA wanted to know about the safety features of the system before allowing camera monitor system, the Alliance of Automakers conducted a safety impact study, which is still ongoing between the Alliance of American Automobile Manufacturers and NHTSA.   Example vehicle equipped with Camera monitor system     Features of 12.3” CMS from our company     Among current camera monitor in market,12.3 inch camera monitor system is most commonly used in truck.The 12.3 inch camera monitor system has a full set of camera,two 12.3 inch FHD resolution monitor,driver board with storage memory up to 256Gb. Below are the main configuration of our 12.3 inch camera monitor system.   Tyep Function Description Features   Display Resolution 1920x720 Display Ratio 12.3" 8:3 IPS Display Mode Potrait display Video Input Resolution 1920x1080(Max) Video Input Format AHD/CVBS adaptive Video Input Frame Rate 25/30fps, 50-60fps Mirror Display Horizontally, Vertically, Horizontally&Vertically, Normal Display Function Brightness, Color Saturation, Contrast Ratio Adjustable Loop Recording Support Reversing Triger Wire Delay Less than 5S OSD Language Simplified Chinese, English Interfaces LCD Interface 16bit RGB/LVDS a-Si TFT LCD Channel Dual Channel（simultaneous） Video Input 1.0Vp-p Audio Interface PCM SD Card Support max.256G Car Reversing Triger Wire 1xDC5-36V, car reversing trigger in priority Remote Infrared Control Built-in receiver Power Output 2xDC 12V/3A (power for cameras) Photosensitive CDS Auto-dimming display Key Interface Mutiple control keys(0.1-3.3V) Backlight Interface Max power 40V/0.2A Power Input/ACC DC9-36V Performance Video Resolution 2x1920x1080(dual recording) Compressed Format H.264 File Format TS(datas are autosaved when power is off), MOV Power Consumption 2.35W(camera and display not included) Operation Temperature -30-85℃ Storage Temperature -40-90℃   Camera configuration:  

OCA bonding is the full lamination of cover lens or touch panel to TFT LCDs. It is one of the technologies that fully bonding The LCM and touch panels or cover glass together by solid transparent optical clear adhesive or liquid transparent optical adhesive. Comparing with the traditional air/DST bonding, OCA bonding could well eliminate the air gap between LCM and touch panel or cover lens.   DST Air Bonding VS Optical OCA Bonding   Benefits of Optical OCA Bonding 1)Enhancing the display performance.The interlayer reflection is lower by OCA bonding technology. Therefore it could reduce the interference of ambient light reflection and increase the LCM light transmittance. The images contrast ratio would be strengthen accordingly as well.   2)By the full lamination OCA bonding, it eliminates the air gap between cover lens or touch panel and the TFT LCD displays. Therefore no dust or moisture would appear inside the air gap. Dust among the gap is the most common drawback for DST air bonding method. OCA bonding could perfectly avoid the issue and improve the user experience greatly.   3)The integraty of the assembled display by OCA bonding ensures the durability and ruggedness.   4)Optical OCA bonding technology ensures the structural integrity, design flexibility, and functional and aesthetic properties, etc   As optical OCA bonding technology has evolved into the mainstream. More and more electronic devices now are adtoping OCA bonding of protective cover glass or touch panel. And the bonding process is being employed on larger screens (touch and cover glass) in a wider range of applications, including medical devices, point of sale terminal, GPS system, industrial control applications, automotive displays, vehicle testing devices, etc.

The LCD industry has experienced many technical innovations during the past 50 years, from TN LCD, HTN LCD, STN LCD to TFT LCD and OLED. TFT LCD has been enjoying its spotlight since late 1980s. Now is the turn of OLEDs, which has been widely used in smart watches, smart phones and laptops with its excellent display features. And it seems the next generation display technology would be Mini LED and Micro LED displays. Many major manufacturers have been investing in mini/micro LED displays，foreseeing the promising prospects.   Many manufacturers have started mass production of MINI LED displays, while micro LED technology still requires enormous investment before MP. As you could see in below fig., in which are the specs of a 16 inch mini LED display. We know how TFT LCD works. The light from backlight module transmits through the TFT panel and several optical films to display images. While mini LED displays just replace the backlight module with tremendous mini LEDs in arrays. The LEDs in a matrix would be a separate unit to control the brightness of its own. In this way, mini LED displays could offer very high contrast ratio and deep black as well as wide color gamut. Another significant advantage of mini LED displays is that it could achieve high brightness more easily, with lower power compared with TFT LCDs. With quantum-dot film, it could achieve the same excellent performance as OLEDs. Furthermore mini LED display avoids the issue of burn-in as OLED display has. The 16 inch mini LED display features with 4K resolution(3840x2160), thin bezel, contrast ration of 100000:1, wide color gamut, and high brightness. The rich color, wide viewing angle and fast response time make it perfect for E-sports monitor display, high end laptops and automotive displays. Due to the tricky process of mounting thousands of LEDs onto the control circuit, it’s quite expensive for the mini LED displays. But comparing with all the improvements mini LED display offers, the price is worth it.