Display device and manufacturing method thereof

• US 6,137,553 A
• Filed: 10/05/1998
• Issued: 10/24/2000
• Est. Priority Date: 10/08/1997
• Status: Expired due to Term

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Nakajima, Mutsumi, Izumi, Yoshihiro
• Primary Examiner(s): Patel, Nimeshkumar D.
• Assistant Examiner(s): Smith, Michael J.
• Application Number:
  US09/167,037
• Time in Patent Office: 750 Days
• Field of Search: 313/491, 313/498, 313/499, 313/501, 313/506, 313/507, 313/581, 313/582, 313/586, 313/587, 313/484, 445/24, 349/49, 349/41, 345/90, 345/97, 345/205
• US Class Current: 349/49
• CPC Class Codes: G02F 1/1358 the supplementary layer being a ferro-electric layer
• CPC Class Codes: G02F 1/1365 in which the switching element is a two-electrode device G02F1/136277 takes precedence

Abstract

A display device includes a non-linear element including an inorganic ferroelectric material in a polycrystalline state and a display medium driven through the non-linear element.

Claims

1. A display device, comprising:

a non-linear element including an inorganic ferroelectric material in a polycrystalline state; and

a display medium driven through said non-linear element.

2. The display device as recited in claim 1, wherein

said non-linear element and said display medium are provided between a pair of insulative substrates.

3. The display device as recited in claim 1, wherein

said non-linear element is formed on a glass substrate.

4. The display device as recited in claim 1, wherein

said non-linear element is connected to two electrodes including a conductive material other than a rare metal or an oxide thereof.

5. The display device as recited in claim 1, wherein

said non-linear element is connected to two electrodes comprised of the same conductive material.

6. The display device as recited in claim 1, wherein

said display medium includes liquid crystal.

7. A method of manufacturing a display device comprising a non-linear element including a film of an inorganic ferroelectric material in a polycrystalline state and a display medium driven through said non-linear element, comprising the steps of:

forming an amorphous film of said ferroelectric material; and

directing light to said amorphous film to obtain said film of the inorganic ferroelectric material in the polycrystalline state.

8. The method as recited in claim 7, wherein

said light is an excimer laser beam.