Mold and method of manufacturing display device

• US 8,040,474 B2
• Filed: 02/07/2007
• Issued: 10/18/2011
• Est. Priority Date: 02/08/2006
• Status: Expired due to Fees

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Bae, Jung-mok, Hong, Mun-pyo, Chang, Jae-hyuk, Roh, Nam-seok
• Primary Examiner(s): RAHLL, JERRY T
• Application Number:
  US11/704,015
• Publication Number:
  US 20070202709A1
• Time in Patent Office: 1,714 Days
• Field of Search: 349/113, 438/30
• US Class Current: 349/113
• CPC Class Codes: G02F 1/133504 Diffusing, scattering, diffracting elements associated to illuminating devices G02F1/133606
• CPC Class Codes: G02F 1/133555 Transflectors
• CPC Class Codes: G02F 1/133565 inside the LC elements, i.e. between the cell substrates
• CPC Class Codes: G02F 2201/123 pixel

Abstract

A mold for a display device, comprising a supporting frame; at least one pattern forming part provided on a surface of the supporting frame; and a protrusion projecting from the supporting frame and disposed along the circumference of the pattern forming part, an inside wall of the protrusion toward the pattern forming part standing upright from the surface of the supporting frame.

Claims

1. A mold for a display device, comprising:

a supporting frame comprising a first side and a second side facing the first side;

at least one pattern forming part provided on the first side of the supporting frame;

at least one flat part provided on the first side of the supporting frame; and

a protrusion projecting from the supporting frame, the protrusion disposed between the flat part and the pattern forming part, wherein an inside wall of the protrusion toward the pattern forming part stands upright from the first side of the supporting frame.

2. The mold according to claim 1, wherein the pattern forming part has a concavo-convex pattern.

3. The mold according to claim 1, wherein an outside wall of the protrusion inclines to the first side of the supporting frame so that a cross-sectional area of the protrusion taken along transversely becomes smaller further from the supporting frame.

4. The mold according to claim 1, further comprising a mask placed on the second side of the supporting frame and having an opening corresponding to the pattern forming part.

5. The mold according to claim 4, wherein the angle between the inside wall of the protrusion and the first side of the supporting frame is substantially in the range of 80 degrees to 100 degrees.

6. The mold according to claim 4, wherein the width of the protrusion is substantially in the range of 5 μ

m to 20 μ

m.

7. The mold according to claim 6, wherein the supporting frame and the protrusion comprises polydimethylsiloxane (PDMS).