The top 10 LED display screen manufacturers in 2019, based on industry experience, this standard specifies the meaning of "using an EmA online detection system to ensure functional importance, functional health and environmental protection". This standard specifies two basic lighting types of main beam lamp and Low beam lamp in the first line. The high beam lights in the second row include LED bulb lights, which have low efficiency, less heat, long service life, and a size of over 10mm. In indoor lighting, the best solution can also be customized according to user needs or the size of the venue. The video control in the third line should be organized from major locations and in accordance with the spirit of the Kunming LED display screen manufacturer.
The general appearance of a full color LED display screen is composed of many RGB three color light emitting diodes, each pixel combination has an RGB diode, and different colors of the full color screen are displayed by the light on and off of each group of pixel lights. The quality of different full-color LED display screens can be evaluated from the following five aspects: the quality and parameters of dedicated LED beads for full-color LED display screens.
Since LED lamp beads are components of public Electric light, different in-line LED lamp beads have different performances. Especially for some special LED lamp beads, their luminous principle has higher quality compared to straight in LED lamp beads.
After using the LED display screen for a period of time, some colors will gradually appear uneven, which requires judgment methods.
Color and brightness can be directly determined. For surface mount screens, it is necessary to determine the following six values, totaling over 500,
The quality of irregular LED beads determines the quality of the LED beads. Even a single or some shaped LED bead can lead to dead quality LED beads, thereby achieving industry goals.
LED bead packaging can be divided into two different packaging forms: direct insertion type and SMD type LED LED. LED SMD LED packaging, also known as SMD LED packaging, has common SMD type lamp beads such as 0805, 0603, 1206, 2835, 3528, and 505.
The normal working current of the 0402 LED bead 006W direct insertion LED bead is 20mA, and the normal working current of the 02WLED bead is 60mA. 2 Overcurrent maintenance: Excessive current will cause the direct insertion LED bead to die out, leading to accelerated brightness attenuation. In circuit design.
Friends who have had LED at home are definitely familiar with LED LED. The emergence of LED LED has broken the traditional lighting method of light bulbs. It is a type of semiconductor diode that can convert electrical energy into light energy