Flip transparent reelable flexible film LED display screen and production process thereof

Abstract

The invention discloses a flip transparent reelable flexible film LED display screen and a production process thereof. The display screen comprises a transparent film, circuit layers, driving ICs, flip LED chips and a transparent adhesive; the display screen totally comprises multiple layers of structures, which are a first flexible film, a first circuit layer, a second flexible film, a second circuit layer, a third flexible film, a third circuit layer and the like sequentially from bottom to top; circuits and the high-temperature-resistant flexible films are superposed to present a multilayerFPC flexible circuit board; the LED chips are welded on the FPC flexible circuit board in a flip mode; and the driving ICs are arranged on the FPC flexible circuit board. The flip LED chips are directly welded on the FPC flexible circuit board, so that the costs of traditional lamp bead supports, gold wires, patches and the like are reduced; and connecting boards are provided with bonding pads, and through mutual connection of the bonding pads, a user can carry out free splicing according to actual requirements, so that the size of the LED flexible screen is determined.

Description

technical field [0001] The invention relates to the field of flexible screens, in particular to a flip-chip transparent rollable soft film LED display screen and a production process thereof. Background technique [0002] LED displays are widely used in all aspects of production and life in modern society because of their advantages such as energy saving, environmental protection, and long service life. Later, flexible LED displays gradually appeared, although new technologies such as OLEDs appeared in similar technical fields. Part of the screen can be flexible and changeable, but compared with the flexible LED screen, this is a different technical solution, which cannot solve the technical problems of large-scale display and long life. [0003] In the field of LED display, it is required that the LED display screen should be easy to transport, light and thin, easy to disassemble and changeable shape. In order to achieve this purpose, the existing technology is to reduce th...

AI Technical Summary

Problems solved by technology

[0002] LED displays are widely used in all aspects of production and life in modern society because of their advantages such as energy saving, environmental protection, and long service life. Later, flexible LED displays gradually appeared, although new technologies such as OLEDs appeared in similar technical fields. Part of the screen can be flexible and changeable, but compared with the flexible LED screen, this is a different technical solution, which cannot solve the technical problems of large-scale display and long life.

[0003] In the field of LED display, it is required that the LED display screen should be easy to transport, light and thin, easy to disassemble and changeable shape. In order to achieve this purpose, the existing technology is to reduce the size of the unit box. The LED chip is welded to the LED lamp bead, and the lamp bead is used to emit light, but the use of the lamp bead requires the use of brackets, gold wires, patches, etc., and the production cost is greatly increased.

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