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Researchers Submit Patent Application, "Window Glass Having Inlay Printing Part in Bezel Area and Method for Manufacturing the Same", for Approval

July 16, 2014



By a News Reporter-Staff News Editor at Electronics Newsweekly -- From Washington, D.C., VerticalNews journalists report that a patent application by the inventors Kim, Young Jae (Suwon, KR); Park, Ho Joon (Suwon, KR); Shin, Seung Joo (Suwon, KR); Song, Ha Yoon (Suwon, KR), filed on June 7, 2013, was made available online on July 3, 2014.

No assignee for this patent application has been made.

News editors obtained the following quote from the background information supplied by the inventors: "The present invention relates to a window glass having an inlay printing part in a bezel part and a method for manufacturing the same.

"A touch screen panel is installed on a display surface of a flat panel display apparatus such as a liquid crystal display (LCD), a plasma display panel (PDP), an organic light emitting diode (OLED), or the like, to allow a user to input desired information while viewing the touch screen panel.

"The touch screen panel may be divided into a resistive type touch screen panel, a capacitive type touch screen panel, an ultrasonic type touch screen panel, an infrared type touch screen panel, and the like.

"The resistive type touch screen panel has a form in which resistance component materials are coated on a pair of glasses or transparent plastic plates, respectively, and a polyester film is covered thereon, has a structure in which two surfaces are spaced apart from each other by a predetermined interval using a spacer so as not to contact each other, and recognizes a position of a touched hand by a change degree of voltage when a substrate is pressed.

"In addition, the ultrasonic type touch panel has a configuration in which a transmitter emitting a sound wave is attached to an edge of one side of a glass substrate and a reflector reflecting the sound wave is mounted at the other side and has a principle of calculating a point in time at which an object such as a finger obstructing the sound wave obstructs a movement path of the sound wave to recognize a touch point.

"In the infrared type touch panel, which uses straightness of an infrared ray, an infrared light emitting diode (LED), which is a light emitting device, and a phototransistor, which is a light receiving device, are disposed to face each other to configure a matrix, and a sensor senses a point at which light is blocked by an object such as a finger in the matrix to recognize a touch point.

"In addition, the capacitive type touch screen panel has a structure of recognizing a touch point by analyzing a high frequency waveform changed at the time of a touch by a finger in a state in which transparent special conductive metals are coated on both surfaces of a glass substrate and voltage is applied to four edges of a touch screen to allow a high frequency to be generated on a surface of the touch screen.

"Meanwhile, a logo, a firm name, or the like, for discriminating a product to which the touch screen panel is applied is printed in a bezel area of the touch screen panel. The printed part such as the logo, the firm name, or the like, as described above is formed on an inner surface of a window glass in a screen printing method or a depositing method and a bezel layer is formed thereon.

"In connection with formation of the printing part as described above, Korean Patent No. 10-1125701 (entitled 'Touch Panel and Method for Manufacturing the Same') has disclosed a feature of depositing a logo printing part on a cover glass. The logo printing part, which is formed by a vacuum depositing method using a shadow mask instead of an existing general printing method, has a feature in which a thickness step thereof is several hundred nanometers or less.

"Since all existing logo printing parts as well as the logo printing part disclosed in the above-mentioned patent are laminated on a surface of the cover glass, they have a two-dimensional structure, such that they do not implement a feeling to some degree or more. For example, discrimination such as a three-dimensional stereoscopic feeling, texture, or the like, may not be produced."

As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "The present invention has been made in an effort to provide a window glass having an inlay printing part in a bezel part capable of producing a three-dimensional stereoscopic feeling by forming a trench having a shape of a desired pattern, figure, or letter in the window glass and filling an ink in the trench to the inlay printing part, and a method for manufacturing the same.

"According to a preferred embodiment of the present invention, there is provided a window glass having an inlay printing part in a bezel part, including: a glass body providing a display surface in a touch screen module and having a trench intaglio-formed in an inactive area of an edge part of an inner surface thereof; and the inlay printing part made of an ink displayed to the outside of the glass body in a state in which the ink is filled in the trench and covered by the bezel part.

"The trench may have a shape of a letter or a figure.

"The ink filled in the trench may have one or more color.

"The ink may be a light non-transmitting ink.

"The trench may include a plurality of visibility enlarging grooves formed therein.

"According to another preferred embodiment of the present invention, there is provided a method for manufacturing a window glass, including: a lamination step of laminating a resist layer on an inside surface of the window glass having a predetermined thickness; an exposure and development step of exposing and developing the resist layer to form an exposed surface having a desired letter or figure in a zone at which a bezel part of the window glass is to be formed; a trench forming step of etching the exposed surface of the window glass to form a trench having the letter or the figure in the window glass; an ink filling step of filling an ink in the trench formed by the trench forming step; and a bezel part forming step of forming a bezel layer in the zone at which the bezel part is to be formed after the ink filled in the trench is cured.

"The etching performed in the trench forming step may be dry etching using a sand blaster and wet etching using hydrofluoric acid.

"The ink filling step may be a process performed by a screen printing process.

"The bezel part forming step may be a step of laminating a black bezel ink in the zone at which the bezel part is to be formed by the screen printing process.

BRIEF DESCRIPTION OF THE DRAWINGS

"The above and other objects, features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

"FIG. 1 is a perspective view of a cellular phone to which a window glass having an inlay printing part in a bezel area according to a preferred embodiment of the present invention is applied;

"FIG. 2 is a cross-sectional view for describing a structure of the window glass having an inlay printing part in a bezel area according to the preferred embodiment of the present invention;

"FIG. 3 is a partial cross-sectional view showing an implementation of the inlay printing part shown in FIG. 2;

"FIG. 4 is a partial cross-sectional view showing another implementation of the inlay printing part shown in FIG. 2;

"FIG. 5 is a partial cross-sectional view showing still another implementation of the inlay printing part shown in FIG. 2;

"FIG. 6 is a cross-sectional view for describing a method for manufacturing a window glass having an inlay printing part in a bezel area according to a preferred embodiment of the present invention; and

"FIG. 7 is a block diagram showing a method for manufacturing a window glass according to a preferred embodiment of the present invention."

For additional information on this patent application, see: Kim, Young Jae; Park, Ho Joon; Shin, Seung Joo; Song, Ha Yoon. Window Glass Having Inlay Printing Part in Bezel Area and Method for Manufacturing the Same. Filed June 7, 2013 and posted July 3, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=3391&p=68&f=G&l=50&d=PG01&S1=20140626.PD.&OS=PD/20140626&RS=PD/20140626

Keywords for this news article include: Patents, Electronics, Light-emitting Diode.

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Source: Electronics Newsweekly


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