Display device

Abstract

The invention provides a display device. The display device comprises glued glass, a driving substrate, at least one display film and a sealing glue layer. And the driving substrate is sealed in the glued glass. The at least one display film is sealed in the laminated glass and located on the driving substrate. The sealant layer seals the edge of the glued glass. The display device provided by the invention is suitable for being applied outdoors and has better structural reliability.

Description

Technical Field

[0001] The present invention relates to a display device, and more particularly to a display device suitable for outdoor use. Background Art

[0002] In the prior art, display devices applied outdoors usually need to be pasted with an optically clear adhesive (OCA), an optical clear resin (OCR), a UV barrier film, a moisture barrier film, a cover glass, etc. to improve the weather resistance of the display device. However, the above methods not only cannot effectively reduce costs and improve production efficiency, but also cannot provide better water vapor barrier ability, thereby reducing the structural reliability of the display device. Summary of the Invention

[0003] The present invention is directed to a display device that is suitable for outdoor use and has better structural reliability.

[0004] According to an embodiment of the present invention, the display device includes a laminated glass, a driving substrate, at least one display film, and a sealant layer. The driving substrate is sealed within the laminated glass. At least one display film is sealed within the laminated glass and located on the driving substrate. The sealant layer seals the edge of the laminated glass.

[0005] In the display device according to an embodiment of the present invention, the above-mentioned laminated glass includes a first glass substrate, a second glass substrate, and a glass bonding material. The driving substrate is located on the first glass substrate. The second glass substrate is located above at least one display film. The glass bonding material bonds the first glass substrate and the second glass substrate and covers the driving substrate and at least one display film.

[0006] In the display device according to an embodiment of the present invention, the thickness of the first glass substrate and the second glass substrate is at least greater than 5 mm respectively.

[0007] In the display device according to an embodiment of the present invention, the thickness of the above-mentioned glass bonding material is between 0.8 mm and 1.2 mm.

[0008] In the display device according to an embodiment of the present invention, the above-mentioned glass bonding material includes a SEF (SAFETY / EXCELLENT / FINESSE) film.

[0009] In the display device according to an embodiment of the present invention, there is a gap between at least one display film and the second glass substrate.

[0010] In the display device according to an embodiment of the present invention, the water vapor transmission rate (WVTR) of the above-mentioned sealant layer is less than 14.5 g / m 2 day.

[0011] In the display device according to an embodiment of the present invention, the material of the above-mentioned sealant layer includes epoxy resin, polymethyl methacrylate (PMMA), silica gel or polystyrene (PS).

[0012] In the display device according to an embodiment of the present invention, the upper and lower surfaces of the above-mentioned sealant layer facing each other are respectively flush with the first and second surfaces of the bonded glass facing each other.

[0013] In the display device according to an embodiment of the present invention, the above-mentioned at least one display film includes at least one electrophoretic display film or at least one electro-wetting display film.

[0014] Based on the above, in the design of the display device of the present invention, the driving substrate and at least one display film thereon are sealed in the bonded glass, and the sealant layer seals the edge of the bonded glass. Through the hardness, water vapor barrier ability and ultraviolet light barrier ability of the bonded glass itself, the weather resistance of the display film applied outdoors can be greatly improved. In short, the display device of the present invention is suitable for outdoor applications and has better structural reliability. Description of the Drawings

[0015] Figure 1 is a partial perspective schematic view of a display device according to an embodiment of the present invention;

[0016] Figure 2 is Figure 1 the cross-sectional schematic view of the display device;

[0017] Figure 3 is a cross-sectional schematic view of a display device according to an embodiment of the present invention.

[0018] Description of the Reference Numerals

[0019] 100, 100’: Display device;

[0020] 110: Bonded glass;

[0021] 112: First glass substrate;

[0022] 113: Bottom surface;

[0023] 114: Second glass substrate;

[0024] 115: Top surface;

[0025] 116: Glass gluing material;

[0026] 120: Driving substrate;

[0027] 121: Upper surface;

[0028] 123: Lower surface;

[0029] 130, 130’, 135: Display film;

[0030] 140: Sealant layer;

[0031] 141: Upper surface;

[0032] 143: Lower surface;

[0033] G: Spacing;

[0034] T1, T2, T3: Thickness. Detailed implementation mode

[0035] Now, reference will be made in detail to the exemplary embodiments of the present invention, and examples of the exemplary embodiments are illustrated in the accompanying drawings. Whenever possible, the same element symbols are used in the drawings and the description to represent the same or similar parts.

[0036] The embodiments of the present invention can be combined with the attached Figure 1 It should be understood that the drawings of the present invention are also regarded as a part of the disclosure and description. It should be understood that the drawings of the present invention are not drawn to scale. In fact, the dimensions of the elements may be arbitrarily enlarged or reduced to clearly show the features of the present invention.

[0037] Figure 1 is a partial perspective schematic view of a display device according to an embodiment of the present invention. Figure 2 is Figure 1 The cross-sectional schematic view of the display device of. Please refer to Figure 1 and Figure 2 simultaneously. In this embodiment, the display device 100 includes a glued glass 110, a driving substrate 120, at least one display film (a display film 130 is schematically shown), and a sealant layer 140. The driving substrate 120 is sealed within the glued glass 110. The display film 130 is sealed within the glued glass 110 and is located on the driving substrate 120. The sealant layer 140 seals the edge of the glued glass 110.

[0038] Specifically, the laminated glass 110 of this embodiment includes a first glass substrate 112, a second glass substrate 114, and a glass adhesive material 116. The driving substrate 120 is located on the first glass substrate 112. The second glass substrate 114 is located above the display film 130. The glass adhesive material 116 glues the first glass substrate 112 and the second glass substrate 114, and covers the driving substrate 120 and the display film 130.

[0039] In this embodiment, the laminated glass 110 is a kind of laminated glass, which is formed by sandwiching a glass adhesive material 116 between two pieces of glass (i.e., the first glass substrate 112 and the second glass substrate 114) at a temperature of, for example, 75 degrees to 80 degrees. In one embodiment, the laminated glass can also be composed of more than two pieces of glass with a glass adhesive material sandwiched between any two pieces of glass. Generally speaking, the laminated glass can also be called explosion-proof safety glass because the middle adhesive material will adhere to the glass after heating. Therefore, when the glass is broken, it still adheres to the glass and will not fly around and hurt people, so it is a building material with extremely high safety.

[0040] Furthermore, please refer again to Figure 2 , in this embodiment, the thickness T1 of the first glass substrate 112 is, for example, at least greater than 5 mm, and the thickness T2 of the second glass substrate 114 is, for example, at least greater than 5 mm. In one embodiment, the size of the first glass substrate 112 can be exactly the same as the size of the second glass substrate 114, where the size includes length, width, and height, but it is not limited thereto. The light transmittance of the first glass substrate 112 and the second glass substrate 114 is respectively greater than 80%. The first glass substrate 112 and the second glass substrate 114 can have better water vapor barrier ability compared to the water blocking films used in the prior art, and the first glass substrate 112 and the second glass substrate 114 themselves have high hardness and excellent weather resistance, and are suitable for outdoor applications. Furthermore, the glass adhesive material 116 of this embodiment is, for example, an SEF film, and the glass adhesive material 116 can effectively block ultraviolet light, that is, it has the ability to block ultraviolet light. In one embodiment, the thickness T3 of the glass adhesive material 116 is, for example, between 0.8 mm and 1.2 mm, but it is not limited thereto, as long as the glass adhesive material 116 can cover the driving substrate 120 and the display film 130 therein. In short, the laminated glass 110 of this embodiment has the advantages of high safety, good water vapor barrier ability, and can effectively isolate ultraviolet light, thus greatly improving the weather resistance of the display film 130 sealed therein for outdoor applications.

[0041] Please refer to both Figure 1 and Figure 2, the driving substrate 120 of this embodiment is, for example, an active element array substrate, which can be, for example, a thin film transistor (TFT) array substrate or a thin film diode (TFD) array substrate, but is not limited thereto. The display film 130 is, for example, an electrophoretic display film or an electro-wetting display film, but is not limited thereto. The display device 100 is, for example, a reflective display device, such as an electrophoretic display device, but is not limited thereto. The driving substrate 120 is used to drive the display film 130 to perform display. There is a spacing G between the display film 130 and the second glass substrate 114, which means that the display film 130 does not directly contact the second glass substrate 114.

[0042] In addition, the sealant layer 140 of this embodiment seals the peripheral surfaces of the first glass substrate 112, the peripheral surfaces of the second glass substrate 114, and the peripheral surfaces of the glass bonding material 116, which means that the sealant layer 140 seals the edge of the bonded glass 110 and can effectively prevent lateral moisture from entering the bonded glass 110. Further, the upper surface 141 and the lower surface 143 of the sealant layer 140 facing each other can be respectively flush with the top surface 115 and the bottom surface 113 of the bonded glass 110 facing each other, but is not limited thereto. Herein, the second glass substrate 114 has a top surface 115, and the first glass substrate 112 has a bottom surface 113. In one embodiment, the material of the sealant layer 140 is, for example, epoxy resin, polymethylmethacrylate (PMMA), silicone rubber, or polystyrene (PS). The water vapor transmission rate (WVTR) of the sealant layer 140 is less than 14.5 g / m 2 day. In one embodiment, the water-blocking effect of the sealant layer 140 is better than that of the glass bonding material 116.

[0043] Briefly, in this embodiment, the display film 130 is sealed therein by the bonding glass 110, and the edge of the bonding glass 110 is sealed by the sealant layer 140 to achieve the waterproof effect. Through the hardness, water vapor barrier ability, and ultraviolet light barrier ability of the bonding glass 110 itself, the weather resistance of the display film 130 applied outdoors can be greatly improved. Furthermore, compared with the prior art, the display device 100 of this embodiment can omit the cost of the water barrier film and the lamination cost of other film layers, and the water barrier ability of the bonding glass 110 of this embodiment is also much higher than that of the water barrier film in the prior art. In addition, the display device 100 of this embodiment can also be subsequently applied to the splicing or curvature of the display, etc., and can have a wider application range. It must be noted here that the following embodiments follow the component numbers and some contents of the foregoing embodiments, where the same numbers are used to represent the same or similar components, and the description of the same technical content is omitted. For the description of the omitted part, reference can be made to the foregoing embodiments, and the following embodiments will not be repeated.

[0044] Figure 3 is a cross-sectional schematic view of a display device according to an embodiment of the present invention. Please refer to Figure 2 as well as Figure 3 , the display device 100' of this embodiment is similar to the above-mentioned display device 100, and the difference between the two is that: in this embodiment, the display device 100' includes two display films 130', 135, wherein the display films 130', 135 are respectively disposed on the upper surface 121 and the lower surface 123 of the driving substrate 120. Since there are driving circuits on both the upper surface 121 and the lower surface 123 of the driving substrate 120, the display films 130', 135 above it can be driven to display. In other words, the display device 100' of this embodiment can display on both sides.

[0045] In summary, in the design of the display device of the present invention, the driving substrate and the display film thereon are sealed in the bonding glass, and the sealant layer seals the edge of the bonding glass. Through the hardness, water vapor barrier ability, and ultraviolet light barrier ability of the bonding glass itself, the weather resistance of the display film applied outdoors can be greatly improved. Briefly, the display device of the present invention is suitable for outdoor applications and has better structural reliability.

[0046] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display device, characterized in that, comprising: Laminated glass; A driving substrate, sealed within the laminated glass; At least one display film, sealed within the laminated glass and located on the driving substrate; And A sealant layer, sealing the edges of the laminated glass.

2. The display device according to claim 1, characterized in that, The laminated glass comprises: A first glass substrate, on which the driving substrate is located; A second glass substrate, located above the at least one display film; and A glass bonding material, bonding the first glass substrate and the second glass substrate and covering the driving substrate and the at least one display film.

3. The display device according to claim 2, characterized in that, The thickness of the first glass substrate and the thickness of the second glass substrate are each at least greater than 5 mm.

4. The display device according to claim 2, characterized in that, The thickness of the glass bonding material is between 0.8 mm and 1.2 mm.

5. The display device according to claim 2, characterized in that, The glass bonding material comprises a SEF film.

6. The display device according to claim 2, characterized in that, There is a spacing between the at least one display film and the second glass substrate.

7. The display device according to claim 1, characterized in that, The water vapor transmission rate of the sealant layer is less than 14.5 g / m 2 day.

8. The display device according to claim 1, characterized in that, The material of the sealant layer includes epoxy resin, polymethyl methacrylate, silicone or polystyrene.

9. The display device according to claim 1, characterized in that, The upper and lower surfaces of the sealant layer facing each other are respectively flush with the first and second surfaces of the laminated glass facing each other.

10. The display device according to claim 1, characterized in that, The at least one display film includes at least one electrophoretic display film or at least one electro-wetting display film.

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