The differences between ULED and OLED are:
1. Different light-emitting principles
ULED needs to emit light through a backlight, and the liquid crystal molecules themselves cannot emit light. LED refers to Backlight. OLED is an organic light-emitting diode that emits light by itself, so it does not require a backlight.
2. Technical differences
OLED is the next generation display technology, while ULED is just an optimization technology. The two technologies are not on the same level.
3. Differences in screen display
Compared with OLED TVs, ULED based on the liquid crystal principle provides 4 times better white field, 2 times the contrast, and at the same time provides twice the The brightness visual range is higher, and the picture detail level is higher.
Extended information
About ULED
ULED is a display quality technology processing engine developed for electronic medical displays and LCD TVs. It adopts multi-zone independent backlight control and Hiview picture engine technology has greatly improved compared to traditional LED displays in terms of picture brightness, picture contrast, picture layering, dark field details, accurate color restoration, picture smoothness and response speed. Its picture quality performance has been demonstrated in a number of subjective evaluation data. Comprehensively surpass OLED.
The initial stage of ULED technology research and development received project support from the National Development and Reform Commission. The project name was "Research and Industrialization of LED Backlights and Key Materials for Liquid Crystal Displays" and also won the 2014 Professional (Medical) Display Model Award from the Ministry of Industry and Information Technology. Establish major special support for key technology research and development and industrial innovation.
ULED has obtained 13 invention patents, including U.S. and European patent authorizations, breaking the previous situation in which major display technology innovations were dominated by foreign companies.
ULED has developed to version 3.0 and achieved 8K display, with a wider color gamut and higher contrast than OLED.
About OLED
Organic Light-Emitting Diode (English: Organic Light-Emitting Diode, abbreviation: OLED) is also called organic electroluminescence display (English: Organic Electroluminescence Display, abbreviation: OELD) , organic light-emitting semiconductors, OLED technology was first studied by the French and Americans in the 1950s and 1960s, and then companies such as Sony, Samsung and LG began mass production in the 21st century.
They are different types of products from thin film transistor liquid crystal displays. The former has the advantages of self-illumination, wide viewing angle, high contrast, low power consumption, high response rate, full color and simple manufacturing process, but it is relatively It cannot compete with the latter in terms of large panel price, technology selectivity, lifespan, resolution and color reproduction. Organic light-emitting diode displays can be divided into monochrome, multi-color and full-color types, among which the Full-color production technology is the most difficult. Organic light-emitting diode displays can be divided into passive (Passive Matrix, PMOLED) and active (Active Matrix, AMOLED) depending on the driving method.
Reference: Baidu Encyclopedia: ULED
Reference: Baidu Encyclopedia: OLED