Camera window having distinctive pattern
AssigneeUti Inc.
InventorsDeok Young Park, Jae Young Hwang, Hak Chul Kim, Tea Joo Ha
Life of this patent
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Abstract
The present invention relates to a manufacturing method for a camera window and a camera window manufactured thereby. A conventional camera window is configured such that an etching pattern is provided on a back surface of a glass sheet, and a deposition layer is provided on the etching pattern, thereby improving reflectivity, whereby indirect external recognition of the etching pattern is performed, but in the present invention, a distinctive pattern is provided on a front surface of a glass sheet such that direct external recognition of the pattern is possible, whereby it is possible to recognize a distinctive pattern line.
Claims13
A camera window for use in protecting a camera module having an objective lens from external impact, with a distinctive pattern manufactured by the following manufacturing method in which the camera window is provided with a transmission portion at a center thereof, and a pattern is provided around the transmission portion, and wherein the camera window has a front surface and a back surface which are opposite surfaces the manufacturing method comprising steps of:
- forming a cell-based patterning mask layer on a front surface or on front and back surfaces of a glass sheet;
- forming a cell-based pattern layer on the glass sheet by patterning the patterning mask layer;
- forming a cell-based distinctive pattern on the front surface of the glass sheet by an etching process using the pattern layer as a mask;
- removing the patterning mask layer, and forming a shaping mask layer on the front and back surfaces of the glass sheet having the distinctive pattern;
- patterning the shaping mask layer, and shaping the glass sheet having the distinctive pattern on a cell-by-cell basis wherein the step of shaping the glass sheet having the distinctive pattern on the cell-by-cell basis is performed by a laser process, and the laser process forms a cell-based crack cut after or while shaping the glass sheet having the distinctive pattern on the cell-by-cell basis;
- wet etching on a line of the crack cut on the glass sheet to form a chamfer after forming the crack cut between the shaping mask layer;
- removing the shaping mask layer, and tempering the glass sheet having the distinctive pattern while simultaneously tempering a side surface of the glass sheet via the crack cut;
- forming a cell-based functional layer on the back surface of the glass sheet having the distinctive pattern wherein the step of forming the functional layer includes:
- forming a cell-based print layer on the back surface of the glass sheet having the distinctive pattern except the transmission portion;
- and
- forming a camera window by separating the glass sheet having the distinctive pattern into cells,
- wherein the forming the cell-based distinctive pattern on the front surface of the glass sheet by the etching process is performed such that either a wet etching process or a dry etching process is performed once or multiple times, or the two etching processes are sequentially performed, and
- each etching process forms the same or a different distinctive pattern.
A camera window comprising:
- a tempered glass sheet portion having first and second surfaces which are opposite surfaces and including a transmission portion at the center of the glass sheet portion,
- a distinctive pattern around the transmission portion on the first surface of the glass sheet portion,
- a functional layer on the second surface of the glass sheet portion except the transmission portion, and
- an anti-reflective coating on the transmission portion of the second surface of the glass sheet portion,
- wherein the functional layer includes a print layer.
A camera window consisting of:
- a tempered glass sheet portion having first and second surfaces which are opposite surfaces and including a transmission portion at the center of the glass sheet portion,
- a distinctive pattern around the transmission portion on the first surface of the glass sheet portion,
- a functional layer on the second surface of the glass sheet portion except the transmission portion, and
- an anti-reflective coating on the transmission portion of the second surface of the glass sheet portion,
- wherein the functional layer includes a print layer.
Dependencies are inferred from the claim text.