CN-121985679-A - Flexible OLED screen curling packaging structure

Abstract

The invention relates to the technical field of flexible light-emitting devices, in particular to a flexible OLED screen curling packaging structure which comprises a substrate, a first electrode layer, a light-emitting functional layer, a second electrode layer and a protective layer, wherein the substrate, the first electrode layer, the light-emitting functional layer, the second electrode layer and the protective layer are sequentially distributed, a filler cavity is formed in the protective layer, filler is arranged in the filler cavity, and catalysts are arranged on two sides of the filler cavity of the substrate. According to the invention, the filling cavity is arranged, and the catalyst is arranged between the protective layer and the substrate, so that when the edge of the OLED screen is torn, the filling in the filling cavity flows out and contacts with the catalyst, and the side packaging is repaired, so that the problem that the internal electronic element of the OLED screen is damaged by contact with air due to edge tearing is avoided, and the service life of the OLED screen is effectively prolonged.

Inventors

• LAN CHUNMEI
• WANG YIXUAN
• HU JUN

Assignees

• 蓝春妹

Dates

Publication Date

20260505

Application Date

20251218

Claims (8)

1. 1. The utility model provides a flexible OLED screen package structure that curls, its characterized in that includes base plate (1), first electrode layer (2), luminous functional layer (3), second electrode layer (4) and protective layer (5), base plate (1), first electrode layer (2), luminous functional layer (3), second electrode layer (4) and protective layer (5) distribute in proper order, packing chamber (6) have been seted up on protective layer (5), packing chamber (6) inside is equipped with liquid filler (7), base plate (1) are located packing chamber (6) both sides and all are equipped with catalyst (8).
2. 2. The flexible OLED screen curling packaging structure according to claim 1, wherein the substrate (1) is provided with partition plates (9) at two sides of the filling cavity (6), and the partition plates (9) at two sides are inclined to one side of the filling cavity (6).
3. 3. The flexible OLED screen curling packaging structure according to claim 2, wherein an elastic air bag (10) is disposed on the substrate (1), the elastic air bag (10) extends into the filler cavity (6), the elastic air bag (10) is in a compressed state, and an air outlet (11) communicated with the elastic air bag (10) is formed in the substrate (1).
4. 4. A flexible OLED screen curling packaging structure according to claim 3, wherein a control air bag (12) is provided on the substrate (1), the control air bag (12) is communicated with the elastic air bag (10) through the air outlet (11), and a gravity type check valve (13) is provided on the control air bag (12).
5. 5. The flexible OLED screen curling packaging structure according to claim 1, wherein a containing groove (14) is arranged between the substrate (1) and the protective layer (5), and a catalyst (8) is arranged on the side wall of the containing groove (14).
6. 6. A flexible OLED screen curling packaging structure according to claim 3, wherein the protective layer (5) is made by coating, a material injection pipe (15) is disposed on the substrate (1), the material injection pipe (15) is attached to the elastic air bag (10), and an anti-adhesion agent for preventing the protective layer (5) from adhering is coated on the elastic air bag (10).
7. 7. The flexible OLED screen curling packaging structure of claim 6, wherein one end of the elastic air bag (10) extends into the injection tube (15), the width of the elastic air bag (10) gradually increases along the width of one side of the injection tube (15) toward the other side, the injection tube (15) is located on the side with the larger curling radius of the protective layer (5), and a catalyst (8) is disposed in the injection tube (15).
8. 8. The flexible OLED screen curled packaging structure according to claim 1, wherein the catalyst (8) is adsorbed on the substrate (1) in a chemical adsorption mode, and the surface of the catalyst (8) is frosted.

Description

Flexible OLED screen curling packaging structure Technical Field The invention relates to the technical field of flexible light emitting devices, in particular to a flexible OLED screen curling packaging structure. Background The flexible OLED screen has strong bending performance, is light and thin, does not occupy space, can be curled and stored, has a storage function of a projection curtain, is convenient to move and store, and has the advantage of clear screen display. When the flexible OLED screen is curled and stored, stress fatigue is easily generated on the side edge of the flexible OLED screen to be torn, electrode materials and luminescent materials of the OLED screen are sensitive to oxygen and water vapor, after the side edge of the flexible OLED screen is torn, the electrode materials and the luminescent materials of the OLED screen are directly contacted with the oxygen and the water vapor to cause damage of the flexible OLED screen, therefore, in order to prolong the service life of the flexible OLED screen, the invention patent with the application number of CN202010804565.0 provides a flexible film packaging OLED structure and a manufacturing method, the height of an isolation wall in the packaging is sequentially increased from inside to outside, and an organic film layer and an inorganic film layer are matched, so that a groove structure which can be used for placing an OLED component in and is in a step shape is formed, the organic film and the inorganic film can be fully combined with each other, the bonding strength of the organic film and the inorganic film is improved, and the service life of the flexible OLED screen is prolonged. For this reason, in order to improve the service life of the flexible OLED screen, a flexible OLED screen curling package structure is proposed. Disclosure of Invention The invention aims to provide a flexible OLED screen curling packaging structure, which aims to prolong the service life of a flexible OLED screen, and by arranging liquid filler between a protective layer and a substrate, when the flexible OLED screen is torn, the liquid filler enters the tearing position of the flexible OLED screen and contacts with a catalyst to repair the flexible OLED screen, so that air is prevented from contacting with electrode materials and luminescent materials of the flexible OLED screen after the flexible OLED screen is torn, and the service life of the flexible OLED screen is prolonged. In order to achieve the above purpose, the present invention provides the following technical solutions: The utility model provides a flexible OLED screen curls packaging structure, includes base plate, first electrode layer, luminous functional layer, second electrode layer and protective layer, base plate, first electrode layer, luminous functional layer, second electrode layer and protective layer distribute in proper order, the packing chamber has been seted up on the protective layer, packing intracavity portion is equipped with the filler, the base plate is located the packing chamber both sides and all is equipped with the catalyst. Through setting up the packing chamber to set up the catalyst between protective layer and the base plate, consequently when OLED screen edge tears, packing chamber inside filler flows out and contacts with the catalyst, with this restoration of carrying out side encapsulation, thereby avoid the OLED screen to lead to inside electronic component and air contact damage's problem because of the edge tears, thereby effectively improve the life of OLED screen. Preferably, the base plate is provided with partition boards at two sides of the filling cavity, and the partition boards at two sides incline to one side of the filling cavity respectively. Through the setting of baffle, can block the continuous tearing of protective layer, and then avoid the side packaging to tear completely and lead to the packing to get into electronic component department and lead to the problem of electronic component damage, the slope setting of baffle, and the incline direction is different, can make the glue film of baffle both sides receive different bending stress when receiving the bending stress action, and then avoid the protective layer of packing chamber both sides to tear simultaneously, when leading to the protective layer to not wholly repair, the air gets into the inside problem that leads to inside electronic component and air contact damage of side packaging fast, further avoid the side packaging to tear completely and lead to the packing to get into electronic component department and lead to the problem of electronic component damage. Preferably, the substrate is provided with an elastic air bag, the elastic air bag extends into the filler cavity and is in a compressed state, and the substrate is provided with an air outlet communicated with the elastic air bag. Through the setting of elastic air bag, can be when OLED screen is because of curling to c