Patent Application
20130077173
1. Field of the Invention
The present invention relates to a display screen mask structure using a shielding frame and a manufacturing method thereof, and in particular relates to a related technical skill applied for photoelectric display devices.
2. Description of the Related Art
Evaporation methods are often utilized to manufacture filtering structures of conventional photoelectric device panels. The photoelectric device panel includes a self-light emitting display element having a thin film multilayer structure, a substrate plate disposed on one side of the self-light emitting display element, and a metallic-pattern molded shielding plate disposed on another side of the substrate plate.
In the film-forming manufacturing process of the evaporation method, the vaporization material is attachingly combined to the substrate plate through the metallic-pattern molded shielding plate, and thus the metallic-pattern molded shielding plate overlapped on the surface of the substrate plate can be utilized to shield the light. However, there still have some following problems of this conventional filtering structure occurred in the actual application.
Firstly, when the conventional displayer is radiated by an outdoor strong light, the intensity ratio of between the light being refracted from the display screen and the light being radiated on the display screen, 180Lux/40000×0.8Lux≈0.005625 [polarizer cross-section coefficient multiplied by the coefficient of vertical cross-section of polarizer reflecting the external strong light] presents that the contrast ratio of the display screen is very small, and the light transmitted intensity is only ⅕ left when further adding the conventional polarizer, and there has a large difference when comparing to the indoor visual acuity, 180 Lux/300Lux˜0.6. Moreover, when the display has an increased light intensity corresponding to that of the external strong light, the RGB colors of the displayer is easily fugitive and can only be sustained for about one to two years. Thus, the display result of this conventional filtering structure is worsen while being illuminated by the external strong light.
Secondly, although this filtering structure using for general displayers can have a better shielding effect, the mask having a large-size protruded structure is still required to be supported or foldably received. Thus, the usability of this conventional filtering structure is imperfect. For example, Taiwan Patent No. 1337238 discloses a general digital camera provided with a conventional foldable single mask.
Thirdly, if the antiglare film s additionally utilized in the conventional filtering structure, the total light transmittance rate is reduced by the antiglare film and no effect is presented when an outdoor sunlight directly radiates on the display screen. Thus, the light transmittance rate of this conventional filtering structure is low.
Fourthly, a larger metallic-pattern molded shielding plate is required when a larger panel is manufactured by the evaporation method. However, the large metallic-pattern molded shielding plate is centrally sank by the gravity thereof so that the accuracy of the film pattern overlapped on the surface of the substrate plate is decreased, thus limiting the dimensional workability.
Fifthly, due to a high thermal expansion rate of the metallic-pattern molded shielding plate, the pattern of the metallic-pattern molded shielding plate is tended to be shifted when the evaporation method is applied, thus increasing the processing difficulty.
In view of the light-filtering structure of the conventional photoelectric device panel having a limited dimensional workability and high difficulty in manufacturing process, the present invention provide a display screen mask structure and a manufacturing method thereof to overcome these inconveniences.
The purpose of the present invention is to provide a display screen mask structure and a manufacturing method thereof. A combination of a shielding frame body and a plurality of substrate units, or a combination of a surface-printing outer frame portion and a surface-printing separated inner frame portion of a shielding frame body to be connectively overlapped on a single or multiple layers of light-transmitting thin film substrate, is overlapped on a self-light emitting display element of a photoelectric device panel. The light, scattered from the self-light emitting display element, is filtered and reflected by and concentratedly radiated from the outer frame portion and the separated inner frame portions of the shielding frame body, so that the light radiated from the self-light emitting display element of the photoelectric device panel is more concentratedly purified and has an enhanced color contrast of the dark tone. Further, the present invention has a simple configuration capable of applying to different sizes of soft and rigid panels of photoelectric devices and in varied fields, thereby reducing the total manufacturing cost and simplifying the manufacturing process.
A detailed description is given in the following embodiments with reference to the accompanying drawings.
The present invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:
The following description is of the best-contemplated mode of carrying out the invention. This description is made for the purpose of illustrating the general principles of the invention and should not be taken in a limiting sense. The scope of the invention is best determined by reference to the appended claims.
Referring to
The shielding frame body 10 comprises an outer frame portion 11 and a plurality of separated inner frame portions 12 laterally and longitudinally arranged in the outer frame portion 11 respectively. In other embodiments, the separated inner frame portions 12 can be laterally arranged in the outer frame portion 11 (not shown in FIGs.). The shielding frame body 10 is made of a thin metallic material. The outer frame portion 11 and the separated inner frame portions 12 of the shielding frame body 10 are arranged in square, and the separated inner frame portions 12 of the shielding frame body 10 is arranged in the mode that an inclined plane of which the surround inwardly inclines. The shielding frame body 10 includes a bottom side disposed with an adhesive layer. A metallic light-transmitting thin film (not shown in FIG.s) is capable of being disposed on a surface of the shielding frame body 10, and at least two shielding frame bodies 10 can be laminated to each other.
Each of the substrate units 20 comprises a light-transmitting filling body 21 being fully filled and accommodated in between the outer frame portion 11 and the separated inner frame portions 12 of the shielding frame body 10. The light-transmitting filling body 21 of the substrate unit 20 is made of high light-transmitting resin material, polymethyl methacrylate (acrylic) material, or plastic material such as polyethylene terephthalate (PET). The light-transmitting filling body 21 of the substrate unit 20 is provided with yellow light-transmitting feature.
The above-described structures, the shielding frame body 10 and the substrate units 20, are combined to form the display screen mask structure using the shielding frame of the present invention.
Referring to
(A) repeatedly performing mirco-stamping machining on a high ductility metallic substrate comprising aluminum to form a shielding frame body;
(B) fully filling and accommodating a light-transmitting filling body of a substrate unit, comprising high light-transmitting re÷sin material, polymethyl methacrylate (acrylic) material, or plastic material, in between an outer frame portion and a separated inner frame portions of the shielding frame body in a mask forming step;
(C) grinding a surface formed by a combining structure of the shielding frame body and the substrate unit into a smooth and clean surface or a mist surface in a surface finishing step; and
(D) forming the combining structure of the shielding frame body 10 and the substrate unit processed in the surface finishing step into a thin film mask product of large-area sheet material.
With the manufacturing procedure of the display screen mask structure using the shielding frame above, the light radiated from the self-light emitting display element 30 of the photoelectric device panel can be more concentrated.
Referring to
The substrate unit 20 comprises a light-transmitting thin film substrate 22, or the substrate unit 20 at least comprises an optical thin layer of one-fourth wavelength formed as a top layer thereof (not shown in FIGs.). The light-transmitting thin film substrate 22 comprises a surface portion 220 connectively overlapped by the surface-printing outer frame portion 110 and the surface-printing separated inner frame portion 120 of the shielding frame body 10. The light-transmitting thin film substrate 22 of the substrate unit 20 is made of high light-transmitting resin material, polymethyl methacrylate (acrylic) material, or soft/rigid plastic material such as polyethylene terephthalate (PET). The combined structure of the shielding frame body 10 and the substrate units 20 is overlapped on a self-light emitting display element 30 of a photoelectric device panel, wherein the light-emitting unit R.G.B light source display modules 31 of the self-light emitting display element 30 are corresponding to the light-transmitting thin film substrate 22 of the substrate unit 20, and the black matrixes 32 of the self-light emitting display element 30 are corresponding to the surface-printing outer frame portion 110 and the surface-printing separated inner frame portion 120 of the shielding frame body 10. The light, scattered from the self-light emitting display element, is filtered and reflected by and concentratedly radiated from the surface-printing outer frame portion 110 and the surface-printing separated inner frame portion 120 of the shielding frame body 10. Thus, the light radiated from the self-light emitting display element 30 of the photoelectric device panel is more concentratedly purified and has an enhanced color contrast of the dark tone. Further, the structure of the light-transmitting thin film substrate 22 of the substrate unit 20 can be varied in accordance with the shielding size of the self-light emitting display element 30 of the photoelectric device panel, and the shielding frame body 10 and the substrate units 20 can be combined to each other by printing, thereby reducing the total manufacturing cost, increasing the application field, and simplifying the manufacturing process.
(A1) selecting a light-transmitting thin film substrate of a substrate unit from high light-transmitting resin material, polymethyl methacrylate (acrylic) material, or soft/rigid plastic material in a mask substrate selection step;
(B1) overlapping a surface-printing outer frame portion and a surface-printing separated inner frame portion of a shielding frame body on the light-transmitting thin film substrate of the substrate unit by printing in a shielding frame printing step;
(C1) depositing the light-transmitting thin film substrate of the substrate unit processed in the shielding frame printing step in a Newton ring eliminator to a desired thickness in a depositing step;
(D1) removing a sealed edge from or synchronically cutting and edge-sealing the light-transmitting thin film substrate of the substrate unit in an edge-sealing step;
(E1) attaching an adhesive film on the light-transmitting thin film substrate of the substrate unit processed in the edge-sealing step in an adhesive film attaching step;
(F1) forming the light-transmitting thin film substrate of the substrate unit processed in the adhesive film attaching step into a thin film mask product of large-area sheet material in a mask product forming step; and
(G1) selectively providing the substrate unit with at least an optical thin layer of one-fourth wavelength formed as a top layer thereof (not shown in FIGs.).
With the manufacturing procedure of the display screen mask structure overlapped on the self-light emitting display element 30 of the photoelectric device panel, the light radiated from the self-light emitting display element 30 of the photoelectric device panel can be effectively shielded, so that the light leakage and diffusion can be prevented and the color contrast of the dark tone of the light radiated therefrom can be enhanced.
Referring to
The advantages of the display screen mask structure using the shielding frame of the present invention are described as follows.
First of all, the film mask, combined by the shielding frame body and the substrate units and overlapped on a self-light emitting display element of the photoelectric device panel, can be dimensionally extended and expanded in accordance with the requirements of the photoelectric device panel at large or small sizes, so that the scope of application of the present application covers a wild range.
Further, by repeatedly performing mirco-stamping machining on the high ductility metallic substrate to form the shielding frame body, filling the light-transmitting filling body of a substrate unit in the shielding frame body, or overlapping the surface-printing outer frame portion and the surface-printing separated inner frame portion of the shielding frame body on the light-transmitting thin film substrate of the substrate unit by surface printing, it is understood that the manufacturing process of the configuration structure of the present invention can be simply performed and achieved.
While the invention has been described by way of example and in terms of the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
| Number | Date | Country | Kind |
|---|---|---|---|
| 100134043 | Sep 2011 | TW | national |
