Since 2014, the small-pitch LED display has shown a rapid development trend. The dot pitch is getting smaller and the density is getting higher and higher, which brings new challenges to the inherent production process, and also creates new display problems. The "caterpillar" phenomenon is one of the more difficult problems in small-pitch displays.
How does LightS technology solve the LED display "caterpillar" phenomenon
The transition of LED display from static control mode to scanning control mode stems from the improvement of lamp bead brightness and driving chip technology. The scanning control mode simplifies the control circuit and reduces the heat generation, but at the same time it causes secondary hazards—— The caterpillars shine.
The “caterpillar” phenomenon refers to the appearance of a long bright bar on the screen of the display screen. The length of the bright bar is determined by the number of scans of the display screen. When the number of scans is N scans, the bright bar is a row of lamp beads composed of N dots, and the bright bar does not change with the change of the screen. Bright bars are different from the stray distribution of blind spots. The bright bars are too concentrated, so any bright bar on the unit display area is very eye-catching.
The main causes of the "caterpillar" phenomenon are as follows:
The bonding force of the lamp bead package is insufficient
Insufficient chip cutting accuracy
Wet environment
Insufficient internal dispensing control for LED packaging production
How does LightS technology solve the LED display "caterpillar" phenomenon
In response to the above questions, LightS Technology submitted its own answer sheet. LightS Technology attaches great importance to technological innovation and research and development, and also focuses on maximizing the value of products. At the same time, it integrates customer feedback, uses its own technical advantages to start from the packaging process, continues to improve and perfect the product, and optimizes the lamp bead model 1010 from 1.0 to 2.0. After upgrading to 3.0, the stability of the product has been continuously improved, and the reliability has been greatly enhanced. Now the 1010 has overcome the pain points of small-pitch applications and consolidated the mainstream position of small-pitch displays. 1010 focuses on isolating moisture from the technological aspect. On the one hand, it strengthens the internal "protection". It adopts an independently developed brand-new packaging patent process. Before packaging, a moisture barrier protective layer is coated on the surface of the PCB, chip, and crystal line to block moisture. Penetrate and damage the components to protect the internal components of the lamp beads from moisture.
How does itc solve the LED display "caterpillar" phenomenon
On the other hand, LightS technology strengthens the external "isolation" and uses ink plug holes to increase the adhesion between the ink and the copper foil, prevent water vapor from entering the interior from the bottom of the product, and avoid moisture interference from the source. 1010 isolates moisture from the inside and outside, and solves the problems of caterpillars and string lighting of LED display screens in two ways.