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Electronic refreshable tactile display for Braille text and graphics 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G09B-021/00
출원번호 US-0509946 (1995-08-01)
발명자 / 주소
  • Gilkes Alan M. (Plano TX) Cowens Marvin W. (Plano TX) Taylor Larry A. (North Richland Hills TX)
출원인 / 주소
  • Texas Instruments Incorporated (Dallas TX 02)
인용정보 피인용 횟수 : 83  인용 특허 : 0

초록 ▼

This is a Braille display device which comprises: a plurality of cavities; and circuitry to individually excite the plurality of cavities. The plurality of cavities contain a positive and a negative electrode 18, 22, 26 and are filled with a quantity of polar organic gel 24 sensitive to electric fie

대표청구항 ▼

A Braille display device which comprises: a plurality of polar organic gel cavities with a positive and a negative electrode, wherein said plurality polar organic gel cavities are between 1 and 2 millimeters in diameter and between 0.5 and 1.5 millimeters in depth, and wherein said polar organic gel

이 특허를 인용한 특허 (83)

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