Display element

• US 7,532,382 B2
• Filed: 06/01/2007
• Issued: 05/12/2009
• Est. Priority Date: 06/07/2006
• Status: Expired due to Fees

• Current Assignee: Konica Minolta OPTO Incorporated (Konica Minolta Inc.)
• Original Assignee: Konica Minolta OPTO Incorporated (Konica Minolta Inc.)
• Inventors: Kosaka, Akira, Fukuda, Mitsuhiro, Izumi, Tomoo
• Primary Examiner(s): Ben; Loha
• Application Number:
  US11/809,413
• Publication Number:
  US 20080024854A1
• Time in Patent Office: 711 Days
• Field of Search: 359/242, 359/244, 359/245, 359/247, 359/248, 359/254, 359/315, 349/21, 349/42, 349/43, 349/46, 349/64, 349/84, 349/106, 349/107, 349/110, 349/96, 349/114, 349/127, 349/130, 349/139, 349/148, 345/173, 345/206, 315/169.3, 313/310, 313/503, 313/504, 313/506, 257/89, 257/98, 257/291, 257/431, 257/437, 428212-214, 428/690, 438/29, 438/30, 438/161
• US Class Current: 359/245
• CPC Class Codes: G02F 1/0128 based on electro-mechanical, magneto-mechanical, elasto-optic effects
• CPC Class Codes: G02F 1/21 by interference
• CPC Class Codes: G02F 2201/12 electrode
• CPC Class Codes: G02F 2202/022 polymeric
• CPC Class Codes: G02F 2203/34 Colour display without the use of colour mosaic filters
• CPC Class Codes: Y10T 428/2495 Thickness [relative or absolute]

Abstract

The present invention provides a display element including a layered body. The layered body includes a layered portion comprising a plurality of transparent thin films with different refractive indexes, and a plurality of electrodes which are adapted to apply an electric field to each of the plurality of transparent thin films. Each of the plurality of transparent thin films comprises a material whose thickness changes according to the electric field.

Claims

1. A display element comprising:

a layered body comprising

a layered portion comprising a plurality of transparent thin films with different refractive indexes, and

a plurality of electrodes which are adapted to apply an electric field to each of the plurality of transparent thin films,

wherein each of the plurality of transparent thin films comprises a material whose thickness changes according to the electric field.

2. The display element of claim 1,

wherein each of the plurality of transparent thin films is a polymer thin film.

3. The display element of claim 1,

wherein at least two of the plurality of transparent thin films have refractive indexes whose difference is 0.3 or more.

4. The display element of claim 1,

wherein the layered body comprises ten or more of the layered portions which are layered.

5. The display element of claim 1,

wherein each of the plurality of electrodes is arranged in the layered body with sandwiching each of the plurality of transparent thin films.

6. The display element of claim 1,

wherein each of the plurality of electrodes is a conductive organic thin film.

7. The display element of claim 1,

wherein a plurality of the layered bodies are two-dimensionally arranged in the display element, and

an electric field is applied to each of the layered bodies independently of each other.

8. The display element of claim 7, further comprising

a plurality of TFT elements each of which being arranged corresponding to each of the layered bodies which are two-dimensionally arranged,

wherein each of the plurality of TFT elements applies an electric field to the corresponding layered bodies independently of each other.