TWI498601B - Multi-band glass fluorescent color conversion film and the manufacturing method thereof - Google Patents

Description

Multi-band glass phosphor color conversion sheet and manufacturing method thereof

The present invention relates to a color conversion sheet which is made of a mixture of a glass material and a phosphor powder; when the light passes through the color conversion sheet, the phosphor powder in the color conversion sheet emits excitation light.

Nowadays, the light source module which uses white light to form a white light is mostly made up of a light-emitting illuminator and a color conversion piece, so that the color conversion piece emits complementary light complementary to the light through the light; the light and the complementary light are utilized. Blending light to form white light. For example, it is known to use a blue light source with a yellow fluorescent glue to mix light to form a white light.

However, at this stage of the technology, there are still technical difficulties and breakthroughs, including two problems of brightness and color rendering. For the problem of insufficient brightness, it can be solved by improving efficiency and power. In terms of lack of color rendering, the current improvement method is to add red fluorescent powder to the fluorescent gel body to form white light with better color rendering; It is difficult to control the uniformity of the above-mentioned phosphor powder mixing system, and there is still room for improvement.

In view of this, the inventors have conceived and further studied, and finally invented a multi-band glass phosphor color conversion sheet and a method of manufacturing the same.

The invention provides a multi-band glass phosphor color conversion sheet and a manufacturing method thereof, the main purpose of which is to improve the conventional light source module which uses a illuminant with a color conversion sheet to mix light to form white light, and the color rendering property is insufficient.

In order to achieve the foregoing objective, the present invention provides a multi-band glass phosphor color conversion sheet, which is mainly a body, the system includes a main color piece and at least one mixed color color piece, and the main color piece and each of the mixed color pieces. The light color film is respectively made of a glass phosphor sintered by a glass material and different at least one phosphor powder, wherein when the light passes through the main color film and each of the mixed color chips, It will ignite the fluorescence of different colors.

In order to achieve the above object, the present invention further provides a method for manufacturing a multi-band glass phosphor color conversion sheet, comprising the following steps: (a): using a glass sinter composed of a glass material and a phosphor powder. Forming a main color piece, and forming at least one mixed color piece by using a glass phosphor sintered from a glass material and different types of at least one phosphor powder, wherein when the light passes through the main color piece and each When the color mixing film is mixed, fluorescence of different colors is excited; and (b): the main color film and each of the at least one mixed color film are combined into a color conversion sheet.

The invention utilizes the provided multi-band glass phosphor color conversion sheet and the manufacturing method thereof, and can obtain the effect of sintering into a main color piece and at least one light mixing by using different kinds of phosphor powder and glass material. a color chip, and the main color piece and each of the mixed color color pieces are combined into a color conversion piece, which can be applied to a white light source module, which can successfully realize mixing of two or more bands and The function of adjusting the wavelength of the original light source, thereby achieving the effect of wide color gamut and high color saturation of the white light source module, and effectively solving the uniformity problem encountered when mixing two or more kinds of fluorescent powders.

The present invention has been described in connection with the preferred embodiments of the present invention in accordance with the accompanying drawings.

[this creation]

20‧‧‧Chassis

21‧‧‧ first side

22‧‧‧ second side

30‧‧‧Ontology

31‧‧‧Main color film

31B‧‧‧Main color film

32‧‧‧Dynamic color film

32B‧‧‧Dynamic color film

33‧‧‧Glass material

34‧‧‧Fluorescent powder

35B‧‧‧ color area

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of an embodiment of the invention.

Figure 2 is an exploded view of an embodiment of the present invention.

Figure 3 is a schematic view of another embodiment of the present invention.

Figure 4 is an exploded view of another embodiment of the present invention.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [Simplified Description of the Drawings] for details:

The preferred embodiment of the multi-band glass phosphor color conversion sheet and the manufacturing method thereof of the present invention is as shown in FIG. 1 , which is mainly a chassis 20 and a body 30 , wherein the chassis 20 is a stainless steel disk. It has one of the relative The first surface 21 and the second surface 22 are coupled to the first surface 21 of the chassis 20. The main body 30 includes a main color sheet 31 and at least one color mixing film 32. The sheet 31 and each of the light mixing color sheets 32 are respectively made of a glass phosphor sintered from a glass material 33 and different at least one phosphor powder 34, wherein light passes through the main color sheet 31. In the embodiment, the main color film 31 and each of the color mixing film 32 are adhered to the chassis by adhesive. The first surface 21 of the 20, and each of the light mixing color chips 32 are concentrated and adjacent, and the main color film 31 occupies 50% of the total area of the body, and the area of each of the light mixing color chips 32 can be as shown in the figure. The difference is shown in .

The above description is the main components of the embodiment of the present invention and their configuration description. As shown in FIG. 1 and FIG. 2 , the present invention uses different types of phosphor powder 34 and glass material 33 to be sintered into a main color sheet 31 and at least one light mixing. The color film 32, and the main color film 31 and each of the light mixing color chips 32 are combined into a color conversion film, which can be applied to a white light source module, which can successfully realize color mixing of two or more bands and adjust the wavelength of the original light source. The function of the white light source module achieves a wide color gamut and high color saturation.

Further, regarding the method for manufacturing the multi-band glass phosphor color conversion sheet of the present invention, as shown in FIG. 2, the method includes the following steps: (a): using a glass material 33 and a phosphor powder 34 The sintered glass phosphor is made into a main color piece 31, and uses a glass material 33 and The glass phosphor sintered by the different types of at least one phosphor powder 34 is formed into at least one color mixing color patch 32, wherein when light passes through the main color film 31 and each of the light mixing color chips 32, the system is excited. Fluorescent light of different colors, wherein the fluorescent powder 34 is selected from the group consisting of yttrium aluminum garnet (YAG), nitride (Nitride), silicate (silicate), aluminate (Aluminate) and oxynitride (Oxynitride). a group of fluorescent materials selected from the group consisting of a citrate system, a phosphate system, a borate system, and a citrate system; and (b): The pre-made main color piece 31 and each of the at least one color mixing color piece 32 are combined into a color conversion piece. In this embodiment, the main color piece 31 is a semi-circular color piece structure, and the mixed light is mixed. The number of the color patches 32 is three, and the three color mixing color chips 32 can also be combined into a semi-circular color chip structure; the main color film 31 and each of the light mixing color chips 32 are combined in a disk-shaped chassis. After that, the manufacture of the color conversion sheet can be completed.

In addition, the present invention may have different structural types according to actual use requirements. For example, please refer to FIG. 3 and FIG. 4, which is another embodiment of the present invention, wherein the main color piece 31B is a The complete disc-shaped structure, the number of the mixed color patches 32B is four, and is not adjacently attached to the main color patch 31B, whereby each of the mixed color patches 32B separates the main color patches It is a complex color zone 35B.

It should be noted that this embodiment is slightly different from the manufacturing method of the previous embodiment, mainly in the step (b), in which each of the mixed color patches 32 is pasted. It is fixed on the main color sheet 31 to be combined into a color conversion sheet.

In the present invention, a plurality of different types of glass phosphors are prepared by pre-sintering to pre-form a main color sheet 31 and at least one color mixing color sheet 32, and the pre-made main color sheet 31 and each of the mixed colors are combined. The light color sheet 32 is combined to form a color conversion sheet, thereby effectively solving the problem of uniformity which is conventionally encountered when two or more kinds of phosphor powders are mixed in the fluorescent gel body, and it is known from the above that the present invention "Industrial availability", "novelty", "progressiveness", and the application for invention patents in accordance with the law, pray for review and early grant of patents.

20‧‧‧Chassis

21‧‧‧ first side

22‧‧‧ second side

31‧‧‧Main color film

32‧‧‧Dynamic color film

33‧‧‧Glass material

34‧‧‧Fluorescent powder

Claims (7)

A multi-band glass phosphor color conversion sheet, which is mainly a body, comprising a main color piece and at least one mixed color color piece, wherein the main color piece and each of the mixed color color film are respectively made of a glass material and Made of a glass phosphor sintered by at least one phosphor powder selected from the group consisting of yttrium aluminum garnet (YAG), nitride (Nitride), silicate (silicate), and aluminate. a group of phosphorescent materials of aluminate and oxynitride, and the glass material is selected from the group consisting of a citrate system, a phosphate system, a borate system, and a citrate system. In the group, when the light passes through the main color piece and each of the mixed color pieces, the fluorescent light of different colors is excited. The multi-band glass phosphor color conversion sheet of claim 1, wherein the glass phosphor color conversion sheet further comprises a chassis having a first side and a second side In the face, the system is bonded to the first side of the chassis. The multi-band glass phosphor color conversion sheet according to claim 1, wherein each of the light mixing color sheets is fixed on the main color sheet. The multi-band glass phosphor color conversion sheet according to any one of claims 1 to 3, wherein each of the mixed color patches is not adjacent, and each of the mixed color patches will be The main color patch is divided into a plurality of color regions. The multi-band glass phosphor color conversion sheet according to any one of claims 1 to 3, wherein each of the mixed color patches is adjacent to each other. A method for manufacturing a multi-band glass phosphor color conversion sheet according to the first aspect of the invention, comprising the steps of: (a): using a glass sinter composed of a glass material and a phosphor powder. body Forming a main color piece, and forming at least one color mixing color piece by using a glass phosphor sintered from a glass material and different types of at least one phosphor powder, wherein when the light passes through the main color piece and each of the When the color mixing film is mixed, the fluorescent light of different colors is excited; and (b): the main color film and each of the at least one mixed color color film are combined into a color conversion sheet. The method for producing a multi-band glass phosphor color conversion sheet according to claim 6, wherein the phosphor powder is selected from the group consisting of yttrium aluminum garnet (YAG), nitride (Nitride), and niobium salt. a group of (silicate), aluminate (Aluminate) and oxynitride (Oxynitride) fluorescent materials selected from the group consisting of a citrate system, a phosphate system, a borate system, and a citric acid. A group of salt systems.