KR-20260062236-A - Method of manufacturing light control member, method of manufacturing display device including the same, and electronic device including the display device manufactured by the method of manufacturing display device

Abstract

One embodiment of the present invention provides a method for manufacturing a light control member comprising the steps of: providing a lens solution on a base layer to form a preliminary lens portion; transferring the base layer on which the preliminary lens portion is formed to a chamber unit; and reducing the pressure within the chamber unit to a first pressure or lower for a first time period to form a lens portion on the base layer.

Inventors

• 이동하

Assignees

• 삼성디스플레이 주식회사

Dates

Publication Date

20260507

Application Date

20241028

Claims (20)

1. A step of forming a preliminary lens portion by providing a lens solution on a base layer; A step of transferring the base layer on which the above-mentioned preliminary lens portion is formed to a chamber unit; and A method for manufacturing a light control member, comprising the step of reducing the pressure within the chamber unit to a first pressure or lower for a first time set in advance to form a lens portion on the base layer.
2. In Article 1, A method for manufacturing a light control member, wherein the first time in the step of forming the lens portion has a value of 100 seconds or less.
3. In Article 1, A method for manufacturing a light control member, wherein the first pressure in the step of forming the lens portion is 10⁻⁵ Torr.
4. In Article 1, A method for manufacturing a light control member, wherein the step of forming the lens portion involves providing light in a first wavelength region to the preliminary lens portion while the pressure within the chamber unit is maintained at or below the first pressure to cure the preliminary lens portion.
5. In Article 1, A method for manufacturing a light control member, wherein the step of forming the lens portion is performed at a temperature in the range of 25℃ to 100℃.
6. In Article 1, A method for manufacturing a light control member, wherein the above-mentioned lens portion has a semicircular shape.
7. In Article 1, A method for manufacturing a light control member, wherein the step of forming the above-mentioned preliminary lens portion involves spraying the lens solution onto the base layer using an inkjet printing method.
8. In Article 1, A method for manufacturing a light-controlling member, wherein the above lens solution comprises a solvent and a base resin.
9. In Article 8, A method for manufacturing a light control member, wherein the base resin comprises at least one of a polyurethane resin, a polyester resin, a polyvinyl chloride resin, a polyvinyl acetate resin, a cellulose resin, a polyamide resin, a polypropylene resin, a polystyrene resin, and an acrylic resin such as polymethyl methacrylate, polylythoxyethyl methacrylate, or polycyclohexyl methacrylate.
10. In Article 8, A method for manufacturing a light-controlling member, wherein the above solvent comprises an ester-based compound.
11. In Article 8, A method for manufacturing a light control member, wherein the boiling point of the above solvent is 150°C or higher and 300°C or lower.
12. In Article 8, A method for manufacturing a light-controlling member, wherein the lens solution further comprises at least one of TiO2 , ZnO, Al2O3 , and SiO2 .
13. A step of preparing a display panel including a light-emitting region and a non-light-emitting region adjacent to the light-emitting region; The method includes the step of forming a light control member on the display panel to overlap with the light-emitting region; The step of forming the light control member is, A step of forming a preliminary lens portion by providing a lens solution on a base layer; A step of transferring the base layer on which the above-mentioned preliminary lens portion is formed to a chamber unit; and A method for manufacturing a display device, comprising the step of reducing the pressure within the chamber unit to a first pressure or lower for a first time period set in advance, thereby forming a lens portion on the base layer.
14. In Article 13, A method for manufacturing a display device, wherein the first time in the step of forming the lens portion has a value of 100 seconds or less.
15. In Article 13, A method for manufacturing a display device, wherein the first pressure in the step of forming the lens portion is 10⁻⁵ Torr.
16. In Article 13, A method for manufacturing a display device in which the above-mentioned lens portion has a semicircular shape.
17. In Article 13, A method for manufacturing a display device, wherein the step of forming the above-mentioned preliminary lens portion involves spraying the lens solution onto the base layer using an inkjet printing method.
18. In Article 13, The above lens solution comprises a solvent and a base resin, and A method for manufacturing a display device, wherein the boiling point of the above solvent is 100°C or higher and 300°C or lower.
19. In Article 18, A method for manufacturing a display device, wherein the lens solution further comprises at least one of TiO2 , ZrO2, ZnO, Al2O3, and SiO2 .
20. Controller that generates a scan input signal; A power module that generates a scan input voltage; and An electronic device comprising a display panel divided into a display area where a pixel circuit is disposed and a peripheral area around the display area, and a scan driver disposed in the peripheral area that receives the scan input signal and the scan input voltage and outputs a scan signal to the pixel circuit, and a display device manufactured by a manufacturing method according to any one of claims 13 to 19.

Description

Method of manufacturing light control member, method of manufacturing display device including the same, and electronic device including the display device manufactured by the method of manufacturing display device Embodiments of the present invention relate to a method for manufacturing a light control member, a method for manufacturing a display device including the same, and an electronic device including a display device manufactured by the method for manufacturing a display device. A display device is a device that receives information about an image and displays the image. Display devices are used as display units for small products such as mobile phones, and also for large products such as televisions. A display device includes multiple pixels that receive electrical signals and emit light to display an image externally. Each pixel includes a light-emitting element; for example, in the case of an organic light-emitting display device, an organic light-emitting diode (OLED) is included as the light-emitting element. Generally, an organic light-emitting display device forms thin-film transistors and organic light-emitting diodes on a substrate, and operates by the organic light-emitting diode emitting light on its own. The electronic device can provide the necessary visual interface to the user through a display device. Meanwhile, research is actively underway to more efficiently extract light emitted from organic light-emitting display devices in order to improve light efficiency. FIG. 1 is a plan view schematically illustrating a display device according to one embodiment of the present invention. Figure 2 is an equivalent circuit diagram of one pixel included in the display device of Figure 1. FIG. 3 is a cross-sectional view of a display device according to one embodiment of the present invention. Figure 4 is an enlarged view of part A of Figure 3. FIG. 5 is a drawing for explaining an inkjet printing method in the preliminary lens portion formation step according to one embodiment of the present invention. FIG. 6 is a drawing for explaining a preliminary lens portion formed through a preliminary lens portion forming step according to an embodiment of the present invention. FIG. 7 is a diagram illustrating the pressure conditions under which a lens portion forming step is performed according to an embodiment of the present invention. FIG. 8 is a drawing for explaining the process of forming a lens portion (430) through the method of a comparative example of the present invention and the method according to an embodiment of the present invention. FIG. 9 is a cross-sectional view illustrating a lens portion formed by a method for manufacturing a light control member according to one embodiment of the present invention. FIG. 10 is a block diagram of an electronic device according to embodiments of the present invention. The present invention is capable of various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various forms. In the following embodiments, terms such as first, second, etc. are used not in a limiting sense, but for the purpose of distinguishing one component from another component. In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise. In the following embodiments, terms such as "include" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added. In the following embodiments, when various components such as layers, films, regions, and plates are described as being "on" or "on" other components, this includes not only cases where they are "directly on" other components but also cases where other components are interposed between them. In the following embodiments, terms such as "connect" or "combine" do not necessarily imply a direct and/or fixed connection or combination of two members unless the context clearly indicates otherwise, nor do they exclude the interposition of another member between the two members. In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and/or thickness of each component shown in the drawings are arbitrarily depicted for convenience of explanation, and therefore the present invention is not necessarily limited to what is illustrated. Where an embodiment can be implemented differently, a specific process sequence may be performed differently from the order described. For example, two processes described