LCD Classification Explanation for Easier Understanding and Application

Classified by LCD screen display characteristics:

High-brightness screen: LCD screens with brightness above 500cd/m2, suitable for display devices that need to be visible in outdoor sunlight.

Full-view angle LCD screen: Possesses full-view angle characteristics, along with high contrast, color saturation, and dynamic clarity.

Wide-temperature LCD screen: Suitable for use in harsh temperature environments, with operating and storage temperatures ranging from -30℃ to +85℃, and some models having an upper limit of 85℃.

Semi-reflective and semi-transmissive screen: Offers excellent display effects for display devices operating under strong light and excellent readability in low-light or no-light environments.

Classified by LCD screen panel type:

TN LCD panel: The most basic and common display mode, simple to manufacture, high transmittance, and low cost.

IPS panel: Excellent full-view angle characteristics, dynamic clarity, and color reproduction.

VA LCD panel: With its wide viewing angle, high contrast, and frictionless alignment advantages, it has become the preferred choice for large-size TFT LCD panels.

Another classification is shown in the figure below:

Currently, LCD screens are the most widely used in the display market, while OLED screens are the mainstream choice for high-end displays. OLED also features ultra-thinness, energy saving, wide color gamut, wide viewing angle, etc. OLED displays also have the characteristic of flexible and rollable, which is the basis for realizing curved displays.

Classified by LCD screen interface type:：

The most common interfaces are RGB, SPI, MCU, MIPI, and LVDS interfaces. Others include HDMI, TTL, and STN interfaces, etc.

Classified by LCD screen driving method:

There are three types: Static driving, Simple Matrix driving, and Active Matrix driving.

2. Domestic LCD screen manufacturers:

The top-tier domestic LCD screen manufacturers include:

1. BOE, ranked among the top five globally in the LCD screen market. Its technology is globally leading. Its core businesses include display devices, intelligent systems, and health services. Display device products are widely used in mobile phones, tablet computers, notebook computers, monitors, televisions, automotive, wearable devices, etc.; intelligent systems build Internet of Things platforms for new retail, transportation, finance, education, art, medical and other fields, providing "hardware products + software platform + scenario applications" overall solutions; health services business combines with medicine and life science to develop mobile health, regenerative medicine and O+O medical services, integrating health park resources.

2. AU Optronics is a publicly listed company controlled by Taiwan's Tatung Company. The company's main products include color display tubes for computers (ranked 3rd in the world), color picture tubes for TVs, computer LCD panels, TV LCD panels, and plasma displays. It is currently the third largest LCD panel manufacturer in Taiwan and the fifth largest in the world. As of the end of 2010, its net assets totaled approximately RMB 30 billion. Since 1993, the company has invested tens of billions of RMB in Fuzhou, Fujian Province and Wujiang, Jiangsu Province to establish large-scale display tube and LCD panel production bases. Its products are continuously supplied to display and color TV manufacturers in China and around the world.

3. Tianma Microelectronics Co., Ltd. is a professional design company of LCDs and LCD modules (LCMs). Founded in 1983, after more than 30 years of development, it has become a large public listed company integrating R&D, design, production, sales and service. Rich manufacturing experience, advanced equipment, excellent craftsmanship, and efficient management make Tianma one of the largest manufacturers of LCDs and modules in China. A strong R&D team and the most advanced technologies at home and abroad ensure that Tianma can provide customers with full-range services and professional technical support from consulting, design, manufacturing to sales. The company's products are now widely used in mobile phones, automotive displays, instruments and meters, home appliances and other information terminal display fields.

4. Shanghai Radio and Television Information Industry Co., Ltd. is one of the major backbone enterprises in China's electronic information industry, mainly engaged in the R&D, production and sales of DLP digital optical televisions, PDP plasma color televisions, LCD color televisions, CRT color televisions, LED displays, communication equipment, network and IT products, and tax control series products. For several consecutive years, the company has been among the top in China's electronic information industry's top 100 enterprises. It has won many awards, including Shanghai High-tech Enterprise and Top Ten Brands of Advanced Manufacturing Industry in Shanghai; the SVA brand has won the title of Shanghai Famous Brand Product for many consecutive years. In November 2005, it was named "Shanghai Flat Panel Display Industry Base" by the Shanghai Municipal Government.

5. Kunshan Longteng Optoelectronics Co., Ltd. (Infovision Optoelectronics, abbreviated as IVO) was jointly established on July 12, 2005 by Kunshan Economic and Technological Development Zone Asset Management Co., Ltd. and Longteng Holdings Co., Ltd. It is the third domestic manufacturer of fifth-generation TFT-LCD (thin-film transistor liquid crystal display), with products mainly focusing on desktop monitors, notebook computers, and LCD TV panels. In pursuit of the integrity of TFT-LCD panel manufacturing, Longteng Optoelectronics successfully invested in a module factory (Kunshan Yuansheng Electronics Co., Ltd.) in May 2008. Currently, it has approximately 4,000 employees.

6. Sakai Display Products Corp (SDP), a joint venture between Foxconn and Sharp, invested 61 billion RMB to build an LCD factory in Guangzhou, China. This significant investment by Foxconn and Sharp aims to increase LCD production to meet the growing demand for large-screen televisions and monitors in the Asian market. In recent years, Samsung has closed some LCD factories, and the Taiwan earthquake at the beginning of this year caused Taiwanese LCD factories to shut down, significantly affecting global LCD production.

7. TCL Display Technology (Huizhou) Co., Ltd. TCL Display Technology is mainly engaged in the R&D, production and sales of TFT-LCD/STN-LCD/OLED display modules. It is a modern high-tech enterprise that provides comprehensive product LCD display module technology and manufacturing supporting services for TCL Group member enterprises and international electronic enterprises.

8. Shenzhen Wan Guo Electric Co., Ltd. Founded in 2007, Wan Guo Electric is now located in E Building, Wan Guo Electric, Jinfeng Industrial Zone, Yonghe Road No. 45, Fuyong Street, Baoan District, Shenzhen. The company is a national high-tech enterprise specializing in the supply of double-sided displays and OLED screen products, and a Shenzhen specialized, refined, and new small and medium-sized enterprise.