What is the LCD display module？
The abbreviation for the LCD display module is LCM, which forms an organic whole through the liquid crystal display, circuit baseband and PCB circuit board. This organic display module is called an LCD display module.
It has the following important components：
1. Backlight source
If the LCD display module does not have a backlight source, the content on the LCD screen cannot be displayed normally, because the liquid crystal layer of the LCD monitor does not emit light. It needs to rely on the backlight source of the LCD display module to generate light after the power is turned on. The multi-layer LCD liquid crystal display panel, such as the color filter substrate, can display the corresponding brilliant image on the front end of the LCD monitor with the external input display signal.
2. Cover glass
As we all know, the LCD screen is very fragile, especially the liquid crystal display layer under certain external force will cause the liquid crystal display layer to crack and fail to display the complete image normally. Therefore, in the outermost layer of the LCD monitor, we generally use cover glass to cover and protect the surface of electronic applications device such as smart phones, ipads, etc. So as to protect the LCD screen from external impact to a certain extent, in addition. The cover glass can also play a role in waterproof, dustproof and prevent screen scratches.
3. Signal transmission baseband
The signal transmission baseband is very important. It is the channel connecting the LCD display and the PCB electronic circuit board. When the external device has new operating signals, the PCB electronic circuit board will convert these operations into electronic signals, and the electronic signals will be processed by the central processing unit. The processor CPU performs calculations (ordinary electronic products may not need such complex functions so there may not be a CPU) and then transmit to the LCD liquid crystal display through the signal transmission baseband, and the liquid crystal display controls the screen according to the input electronic signal The polarizing plate is offset by the angle to realize the projection of the back light source, thus displaying the corresponding image content on the front end of the LCD monitor!
This is a new technology that has been continuously developed in recent years. Because of the popularity of intelligent electronic devices, people generally prefer capacitive touch screens from resistive touch screens. Therefore, most of the new generation of LCD monitors have added touch sensing modules. When the user touches the LCD display with a finger, the screen pressure sensing element can detect the pressure changes on the screen, thereby converting these pressure changes into electronic signals, which are processed by the CPU to output the corresponding liquid crystal display signals, The corresponding wonderful image appears on the screen!
Top 5 LCD Display Module Manufacturer
NO.1—BOE Technology Group Co., Ltd.
BOE, founded in April 1993, is an Internet of things company that provides intelligent port products and professional services for information interaction and human health. The core business includes port devices, smart IoT and smart medical industry.
Here we need to emphasize it’s port devices business unit. Port device industry includes display and sensor devices, sensors and solutions. As a global leader in the semiconductor display industry, BOE has led China’s display industry from scratch to existence, from existence to large, from large to strong. At present, more than a quarter of the world’s display screens come from BOE, and its Ultra HD, flexible, microdisplay solutions have been widely used in well-known brands at home and abroad. By the end of 2019, BOE has added 9657 patent applications, including over 90% invention patents, and more than 70000 patents can be used, covering the United States, Europe, Japan, South Korea and other countries and regions.
According to the data released by IFI claims, the global ranking of BOE jumped to No. 13 in 2019, and the number of patents granted in the United States reached 2177, an increase of 33% over the same period last year In the top 50 list, the number of patents granted in the United States has increased both in ranking and in the United States; the World Intellectual Property Organization (WIPO) released the global situation of international patent applications (PCT) in 2019, and BOE (BOE) ranked sixth in the world with 1864 PCT applications.
Especially in 2020, under the influence of the new coronavirus epidemic in the world, they also launched strategic cooperation with Qualcomm and were successfully selected into the pilot demonstration project of China’s big data industry development in 2020. In the global LCD TV panel shipment volume and area released by SigmaiTell in 2019, BOE ranks first in the world!
NO.2—Holitech Technology Co,.Ltd
Holitech Technology Co., Ltd. was established in 2003 with a registered capital of 1.564 billion. The main business: LCD module, touch module, camera module, fingerprint recognition module, cover glass, FPC, new product 2.5D cover Plate glass, 3D cover glass, etc. It is planned that the overall supporting capacity will reach 300 million sets by 2018, and the overall supporting capacity will reach 500 million sets by 2020. Existing customers include Samsung, Huawei, OPPO, VIVO, ZTE, TCL, Microsoft, Meizu, Lenovo, Coolpad, Midea, Haier and other well-known domestic and foreign first-class companies.
Holitech Technology Co., Ltd. has launched a full-screen mobile phone project, has successfully completed the development, design and production of the first full-screen model, and is actively entering the market
NO.3 —Dijing Optoelectronics
Dijing Optoelectronics (Shenzhen) was founded in 2004 with a registered capital of 75 million yuan. It is a collection of liquid crystal display modules (LCM), capacitive touch screens (CTP), fully laminated touch display integrated modules (TDM), LCD A national high-tech company integrating thinning technology development, production and service.
Dijing Optoelectronics currently has 31,000 square meters of 10,000-level purification workshop, more than 6,000 square meters of office area and storage area. It has an industrial base of 110 acres in Ganzhou, Jiangxi. The first phase of the project has been completed. The total number of employees is 3,800, of which there are 150 R&D engineering and technical teams. The monthly production of liquid crystal display modules is up to 10 million sets, and the annual production capacity is 120 million sets.
At present, Dijing Optoelectronics has three specifications of 5.5 inches, 5.7 inches and 5.98 inches LCD full-screen display modules. The mass production process has been very mature. The four projects that customers are running have also been implemented. The mass production progress is on At the forefront of the industry. Based on the existing high-precision module equipment of Dijing Optoelectronics, the monthly production capacity can reach 7KK.
Founded in 1983, Tianma Microelectronics is a high-tech enterprise specializing in the production and operation of liquid crystal displays (LCD) and liquid crystal display modules (LCM). Companies invested and established include Shenzhen Tianma, Shanghai Tianma, Chengdu Tianma, Wuhan Tianma, European Tianma, American Tianma, South Korea Tianma, etc. With STN-LCD, CSTN-LCD, TFT-LCD and CF production lines and module factories, it has become a leader in the field of small and medium-sized displays.
Tianma’s full-screen technology has a leading advantage in the country. At the Taipei Computer Show, Tianma Microelectronics demonstrated a 5.46-inch 1080p resolution 18: 9 LTPS full screen.
Tianma has clear technological and production advantages in the small and medium-size display market where it has enjoyed a strong market presence over the years. Tianma has established a National R&D Laboratory on TFT-LCD Key Materials and Technologies, a National Enterprise Technology Center, and a post-doctoral workstation to enhance the knowledge and technical expertise of our employees.
The possession of new technologies including LTPS-TFT, Oxide-TFT, AMOLED displays, Flexible displays, Transparent displays, 3D displays and In-cell/On-cell integrated touch technology set the foundation for innovation and the development of new and exciting products.
Tianma has a comprehensive production line: G2 to G6 TFT-LCD lines (including a-Si, LTPS), G5.5 to G6 AMOLED line and TN, STN lines, enabling Tianma to achieve the highest possible level of product quality and supply capability. Tianma was the first to start mass production from a G5.5 LTPS production line in China. In addition, the Xiamen G5.5 LTPS production line is the first line in China which is capable of producing and selling in full capacity; Shanghai G5.5 AMOLED production line has been lightened, mass-produced and delivered in Mainland China in advanced; Wuhan G6 AMOLED production line achieved mass production.
Founded in 2008, YouSee Technology Co., Ltd is committed to the whole industry chain of high cost performance LCD, TP assembly and PCB assembly. As a factory with 12 years of experience in manufacturing LCD products, relying on technical upgrading and service upgrading, it has achieved great development in a short period of time!
Their products include medical equipment display screen, GPS vehicle display screen, POS equipment, smart home, household appliances, consumer electronic products, communication equipment, industrial control equipment, instrumentation, human-computer interaction interface and liquid crystal display (LCM), touch screen R & D, production, sales and service (TP), backlight screen (BL) cable layout and other information display terminal high-tech enterprises. Provide various quality control, technical support and related services.
It should be noted that their company attaches great importance to technology R & D and innovation, and is the company with the highest proportion of technology R & D investment among the five companies. Although it may not be able to compare with BOE in total, their company’s rising potential and future promotion space should be the best among the five enterprises.
YouSee Technology Co., Ltd
Contact Person:Mick Liu (Sales Manager)
Address：5th FL,C Bldg,YongQi Technology Industrial Area,LezhuJiao,Baoan,Shenzhen