阅读说明：本技术 彩膜及其制备方法 (Color film and preparation method thereof ) 是由 李祥龙 吴聪原 吴元均 于 2019-08-26 设计创作，主要内容包括：本发明提供了一种彩膜及其制备方法,所述彩膜的制造备方法,包括：S10提供第一基板,所述第一基板的表面包括规律的多个内凹或外凸圆弧形或多边弧形；S20在所述第一基板上涂布一湿彩膜；S30提供第二基板,所述第二基板的表面包括规律的多个外凸或内凹圆弧形或多边弧形,利用所述第二基板与所述第一基板对所述湿彩膜进行凹-凸对位压印,使所述湿彩膜形成一彩膜；S40对所述彩膜进行固化定型；以及S50将固化定型后的所述彩膜自所述第一基板及所述第二基板分离出来,其中经分离出来的所述彩膜包括多个彼此相邻的彩膜单元。(The invention provides a color film and a preparation method thereof, wherein the preparation method of the color film comprises the following steps: s10, providing a first substrate, wherein the surface of the first substrate comprises a plurality of regular concave or convex circular arcs or polygonal arcs; s20, coating a wet color film on the first substrate; s30, providing a second substrate, where the surface of the second substrate includes a plurality of regular convex or concave circular arcs or polygonal arcs, and performing concave-convex contraposition imprinting on the wet color film by using the second substrate and the first substrate, so as to form a color film on the wet color film; s40, curing and shaping the color film; and S50, separating the cured and shaped color film from the first substrate and the second substrate, wherein the separated color film comprises a plurality of color film units adjacent to each other.)

1. A color film structure, comprising: the color film units are in arc-shaped or polygonal arc-shaped longitudinal sections.

2. The color film structure of claim 1, wherein the plurality of color film units have similar film thicknesses in a radial direction.

3. The color filter structure of claim 2, wherein the film thickness is 0.1 to 10 um.

4. The color filter structure of claim 1, further comprising a plurality of black matrices respectively corresponding to the plurality of color filter units.

5. A display comprising the color film structure of claim 1.

6. A method for preparing a color film structure is characterized by comprising the following steps:

s10, providing a first substrate, wherein the surface of the first substrate comprises a plurality of regular concave or convex circular arcs or polygonal arcs;

s20, coating a wet color film on the first substrate;

s30, providing a second substrate, where the surface of the second substrate includes a plurality of regular convex or concave circular arcs or polygonal arcs, and performing concave-convex contraposition imprinting on the wet color film by using the second substrate and the first substrate, so as to form a color film on the wet color film;

s40, curing and shaping the color film; and

and S50, separating the cured and shaped color film from the first substrate and the second substrate, wherein the separated color film comprises a plurality of color film units adjacent to each other.

7. The method according to claim 6, wherein the plurality of color film units have the same and similar film thicknesses in a radial direction.

8. The method for manufacturing a color filter structure according to claim 6, wherein the film thickness is 0.1 to 10 um.

9. The method for manufacturing a color filter structure according to claim 6, wherein the curing and setting manner in the step S40 includes at least one of the following: thermal curing and ultraviolet curing.

10. The method for preparing a color film structure according to claim 6, wherein the heat curing temperature in the step S40 is 100 to 250 ℃, and the heat curing time is 1 to 120 minutes.

Technical Field

The invention relates to a display, in particular to a novel color film capable of improving a color cast phenomenon.

Background

Display technologies have been widely used in production and life, ranging from small-size high-resolution wearable virtual reality/augmented reality (VR/AR) devices to large-size high-brightness outdoor displays, from flat displays to curved displays to stereoscopic displays, and are ubiquitous. The most widely used technology is Liquid Crystal Display (LCD), and organic electroluminescent diode (OLED) is also rapidly developing and widely used. In both display technologies, a Color Filter (CF) is an indispensable key component.

The most common scene is the color film that converts white light into three primary colors, red, green, and blue, and then synthesizes the colors into a colorful color that we see in the display. The color film is usually prepared on a glass substrate, and then corresponds to a pixel on a backplane with a thin film transistor to convert light into a target color. The color film is typically applied directly to the substrate and patterned. However, the color film thickness obtained by this method is constant in the vertical viewing angle, as shown in fig. 1. Fig. 1 is a schematic diagram of a conventional color filter, and referring to fig. 1, in the conventional color filter 100, although the thickness at a vertical viewing angle is constant, when the viewing angle changes, the thickness at a different viewing angle changes. The color changing ability of the color film changes with the increase of the thickness, and particularly, the transmission spectrum of the color film changes obviously with the increase of the thickness. At this time, the color conversion capability of the color film to the color will be different at different viewing angles. Further, color shift will occur at different viewing angles.

In order to solve the color shift caused by the difference of color conversion capability of a color film at different viewing angles, it is necessary to develop a new color film with uniform film thickness at different viewing angles to solve the color shift.

Disclosure of Invention

Accordingly, the present invention provides a novel color film, a method for manufacturing the same, and a display using the same. The color film provided by the invention can reduce the influence on the color improvement amplitude and the brightness caused by the film thickness of the viewing angle of the color film under different viewing angles, so as to improve the color characteristics and the brightness characteristics of different viewing angles and further solve the color cast phenomenon of a display.

Accordingly, according to an embodiment of the present invention, the present invention provides a color film, including: the color film units are in arc-shaped or polygonal arc-shaped longitudinal sections.

In an embodiment of the invention, the color film further includes a plurality of black matrixes respectively corresponding to the plurality of color film units.

According to another embodiment of the present invention, a method for manufacturing a color film is further provided, where the color film is formed by at least one of inkjet printing, blade coating, imprinting, transfer printing, and lifting, where the color film includes a plurality of color film units adjacent to each other, and the plurality of color film units have similar film thicknesses in a radial direction, where the film thicknesses are 0.1 to 10 μm.

According to another embodiment of the present invention, the present invention further provides a display, which is characterized in that the display includes the color film structure.

According to another embodiment of the present invention, the present invention further provides a method for manufacturing a color film, including: s10, providing a first substrate, wherein the surface of the first substrate comprises a plurality of regular concave or convex circular arcs or polygonal arcs; s20, coating a wet color film on the first substrate; s30, providing a second substrate, where the surface of the second substrate includes a plurality of regular convex or concave circular arcs or polygonal arcs, and performing concave-convex contraposition imprinting on the wet color film by using the second substrate and the first substrate, so as to form a color film on the wet color film; s40, curing and shaping the color film; and S50, separating the cured and shaped color film from the first substrate and the second substrate, wherein the separated color film comprises a plurality of color film units adjacent to each other.

In an embodiment of the present invention, the plurality of color film units have similar film thicknesses in a radial direction, and the film thicknesses may be 0.1 to 10 um.

In an embodiment of the invention, the curing and setting in step S40 includes at least one of the following: thermal curing and ultraviolet curing.

In an embodiment of the invention, the temperature of the thermal curing in the step S40 is 100 to 250 ℃, and the time of the thermal curing is 1 to 120 min.

Drawings

In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a conventional color film.

Fig. 2 is a flowchart of a method for manufacturing a color film according to an embodiment of the invention.

Fig. 3 is a schematic flow chart of color film manufacturing according to an embodiment of the invention.

Fig. 4 is a schematic flow chart illustrating a color film manufacturing process according to another embodiment of the invention.

Fig. 5 is a schematic view of a color film according to an embodiment of the invention.

FIG. 6 is a diagram of a display according to an embodiment of the invention.

Detailed Description

In order to make the aforementioned and other objects of the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. Directional terms mentioned in the present invention, such as [ longitudinal ], [ lateral ], [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., refer to the directions of the attached drawings only. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.

In order to solve the color shift phenomenon caused by the difference of the color conversion capability of the color film to the color under different visual angles, the invention provides a novel color film, which can reduce the influence on the color improvement amplitude and the brightness caused by the film thickness of the visual angle of the color film under different visual angles so as to improve the color characteristic and the brightness characteristic of different visual angles and further solve the color shift phenomenon of a display.

Accordingly, the present invention provides a method for manufacturing a color film, which is shown in fig. 2. Fig. 2 is a flowchart of a method for manufacturing a color film according to an embodiment of the invention. As shown in fig. 2, specifically, the method for manufacturing a color film according to an embodiment of the present invention includes: step S10, providing a first substrate, wherein the surface of the first substrate comprises a plurality of regular concave circular arcs or polygonal arcs; step S20, coating a wet color film on the first substrate; step S30, providing a second substrate, where the surface of the second substrate includes a plurality of regular convex or concave circular arcs or polygonal arcs, and performing concave-convex contraposition imprinting on the wet color film by using the second substrate and the first substrate, so that the wet color film forms a color film; step S40, curing and shaping the color film; and step S50, separating the cured and shaped color film from the first substrate and the second substrate, where the separated color film includes a plurality of color film units adjacent to each other.

In an embodiment of the method for manufacturing a color film of the present invention, a schematic structural diagram of each step can be seen in fig. 3. Fig. 3 is a schematic flow chart of color film manufacturing according to an embodiment of the invention. As shown in fig. 3, specifically, the method for manufacturing a color film according to an embodiment of the present invention includes: step S10 is to provide a first substrate 21, wherein the surface 21a of the substrate 21 includes a plurality of regular convex circular arcs or polygonal arcs P2; step S20, coating a wet color film 200' on the first substrate; step S30, providing a second substrate 22, where the surface of the second substrate 22 includes a plurality of regular concave circular arcs or polygonal arcs R2, and performing concave-convex contraposition imprinting on the wet color film 200' by using the second substrate 22 and the first substrate 21, so that the wet color film forms a color film 200; step S40, curing and shaping the color film 200; step S50, separating the cured and shaped color film 200 from the first substrate 21 and the second substrate 22, where the separated color film 200 includes a plurality of color film units 210 adjacent to each other.

In another embodiment of the method for manufacturing a color film of the present invention, a schematic structural diagram of each step can be seen in fig. 4. Fig. 4 is a schematic flow chart illustrating the preparation of a color film according to another embodiment of the invention. As shown in fig. 4, specifically, the method for manufacturing a color film according to an embodiment of the present invention includes: step S10 is providing a first substrate 31, wherein the surface 31a of the substrate 31 includes a plurality of regular concave circular arcs or polygonal arcs P3; step S20 is to coat a wet color film 300' on the first substrate 31; step S30, providing a second substrate 32, where the surface of the second substrate 32 includes a plurality of regular convex circular arcs or polygonal arcs R3, and performing concave-convex contraposition imprinting on the wet color film 300' by using the second substrate 32 and the first substrate 31, so that the wet color film forms a color film 300; step S40, curing and shaping the color film 300; step S50, separating the cured and shaped color film 300 from the first substrate 31 and the second substrate 32, where the separated color film 300 includes a plurality of color film units 310 adjacent to each other.

In the above embodiment, the manner of curing and setting in step S40 includes at least one of the following: thermal curing and ultraviolet curing.

In the above embodiment, the temperature of the heat curing in the step S40 is 100 to 250 ℃, and the time of the heat curing is 1 to 120 min.

In addition to the above embodiments, the color film of the present invention can also be formed by at least one of ink-jet printing, doctor blading, stamping, transferring, and pulling, and the obtained color film has the structure shown in fig. 5. Fig. 5 is a schematic view of a color film according to an embodiment of the invention. As shown in fig. 5, the color film 200 provided in the embodiment of the present invention includes: the color film units 210 are provided, wherein the longitudinal sections of the color film units 210 are in the shape of an arc or a polygonal arc. The invention provides a novel color film with a longitudinal section in the shape of an arc or a polygonal arc, which has the color changing capability not changing along with the change of a visual angle and aims to reduce the color deviation caused by the change of the thickness of the visual angle film when the visual angle changes.

In addition, the method and means for realizing the specific color film with uniform visual angle film thickness can also comprise the sharing of a plurality of color films, and the color films with different colors or thicknesses can be formed by using the concept and method of the invention for a plurality of times, but the method and the device are not limited to the embodiment of the invention, and the skilled person can design the color films according to the actual design requirements of products. With reference to fig. 5, in an embodiment of the invention, the color film 200 further includes a plurality of black matrixes 220 respectively corresponding to the plurality of color film units 210.

As shown in fig. 5, in an embodiment of the present invention, the color film units 210 have similar film thicknesses in a radial direction, and the film thicknesses may be 0.1 to 10 um.

The color changing capability of the novel color film provided by the invention does not change along with the change of the visual angle. In view of the foregoing, it is an object of the present invention to reduce color shift due to viewing angle film thickness variation when viewing angle is varied. As long as the above purpose can be achieved, there is no need to particularly limit specific methods and means for realizing a color film with uniform viewing angle film thickness, such as whether multiple color films are shared, that is, whether the concept and method of the present invention are used for multiple times to form color films with different colors or thicknesses, etc.; the engineer may design the product according to the design requirements of the product. The color film with the uniform visual angle film thickness can be applied to scenes such as Organic Light Emitting Diode (OLED) display, Quantum Light Emitting Diode (QLED) display, Micro-LED (Micro-LED) display, Liquid Crystal Display (LCD) display and the like. The statements and parameters in this example are provided to assist the reader in understanding the basic concepts of the present design, and the scope of the present invention is not limited to such statements, parameter examples, and embodiments.

Referring to fig. 6, another embodiment of the present invention further provides a display 1 including the color film structure 200 of the present invention. The display may be selected from at least one of: organic light emitting diode displays (OLEDs), quantum dot light emitting diode (QLED) displays, micro-light emitting diode (micro-LED) displays, and Liquid Crystal Displays (LCDs). The display can reduce the influence on the color improvement amplitude and the brightness caused by the film thickness of the color film visual angle under different visual angles by configuring the color film structure, so as to improve the color characteristic and the brightness characteristic of different visual angles and further solve the color cast phenomenon of the display.

Accordingly, the invention provides a novel color film, a preparation method thereof and a display using the same. The color film provided by the invention can reduce the influence on the color improvement amplitude and the brightness caused by the film thickness of the viewing angle of the color film under different viewing angles, so as to improve the color characteristics and the brightness characteristics of different viewing angles and further solve the color cast phenomenon of a display.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.