USO0RE41216E

(19) United States (12) Reissued Patent

(10) Patent Number:

Ozawa (54)

(75)

(45) Date of Reissued Patent:

Apr. 13, 2010

METHOD AND APPARATUS FOR DRIVING

5,250,931 A

THE DISPLAY DEVICE, DISPLAY SYSTEM,

5,251,051 A * 10/1993 Fujiiyoshi et a1. ..

AND DATA PROCESSING DEVICE

5,604,511 A 5,625,373 A

2/1997 4/1997

5,739,816 A

4/1998 Kobayashiet a1.

345/204

5,796,384 A

8/1998

K'

............ ..

345/147

2/2000

Koyama ...... ..

345/58

_

Inventor‘

Tokumh Ozawa’ SuWa(JP)

.

.

5,764,216 A

.

(73) (21)

Asslgnee: se‘k" EPSO“ Corporatloni Tokyo (JP) APPLNO; 10/773’703

(22)

PCT Filed:

Feb. 28, 1997

(86)

PCT No.:

PCT/JP97/00609

§37l (c)(1), (2), (4) Date:

Feb. 5, 1998

5,933,199 A 5,940,057 A 6,023,257 A

(87)

US RE41,216 E

6,154,121 A

GB JP

PCT Pub. Date: Sep. 4, 1997

6/1998 Tanaka et a1.

8/1999 Y(l)I(1)1n .... .. 8/1999 Lien et a1.

345/100 .. . 345/98 345/58

348/674

348/674 345/89

* 11/2000 Cairns et a1. .............. .. 341/138

2-2l7-l28 A A 57-052228

10/1989 3/1982

JP

A 58-097918

6/1983

JP

A59-107628

6/1984

JP

A 62-10696

1/1987

(Continued)

Related US. Patent Documents

(30)

Ohl ................ .. Johnson .......... ..

FOREIGN PATENT DOCUMENTS

PCT Pub. No.: WO97/32295

Reissue of? (64) Patent NOJ Issued: Appl. No.: Filed:

10/1993 Misawa et a1. ............ .. 345/206

Primary ExamineriRichard Hjerpe Assistant ExamineriLeonid Shapiro (74) Attorney, A gent, 0r Firmwliff & Berridge, PLC

6,542,143 Apr- 1, 2003 08/945,522 Feb. 5, 1998

(57)

Foreign Application Priority Data

ABSTRACT

It is an object to provide a high-performance display element driving device or the like Which can be easily reduced in

Feb. 28, 1996

(51)

(JP) ........................................... .. 8-067304

Int CL

power Consumption and Scale' A display element driving

device (100) drives a liquid crystal serving as a capacitive

G09G 3/36

(200601)

display element. A'D/A converter (110) includes to Nth charge storage sect1ons (112-1) to (112-N) for rece1v1ng ?rst

(52)

us. Cl. ............................ .. 345/98; 345/92; 345/89;

F0 Nth digital data °°"‘?SP°nding an image Signal and Stor

(58)

345/205; 348/674; 348/792 Field of Classi?cation Search .................. .. 345/98,

glgclllaéges cordregpondlrlig 1to the values of the ?ritlét‘olNth lglta ‘a’ an F5‘ to ‘ conpecnon sect1ons ( ' )to

345/92 89 205 See a

lication ?le for Com lete Search histo’ ’ pp p ry'

(56)

(114-N) for electrlcally connectlng the ?rst to Nth charge storing sections (112-1) to (112-N) and an electrode line (130) to each other and discharging the stored charges to the

References Cited

electrode line (130)~at a given timing. In this manner, y-correctlon of a llquld crystal and D/A converslon can be

US. PATENT DOCUMENTS 4,845,482 A

4,873,516 A 5,017,914 A

simultaneously performed, and conversion from RGB to

7/1989 Howard et a1. .............. .. 345/58

10/1989 Castleberry *

w

and D/A Converslon can be slmuhaneously performed‘

345/58

5/1991 Uchida et a1. ............... .. 345/89

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US RE41,216 E Page 2

FOREIGN PATENT DOCUMENTS JP JP JP JP JP JP JP JP JP JP JP

U 63-82228 A 1-233919 A 3-35218 A 3-89393 A 3-190429 A 3-214818 A 4-11282 A 4-502520 A 4-195189 A 4-268818 A-04-314094

5/1988 9/1989 2/1991 4/1991 8/1991 9/1991 1/1992 5/1992 7/1992 9/1992 11/1992

JP

A 5-102857

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* cited by examiner

10/ 1993 11/1993 3/1994 4/1994 5/1994 8/1994 9/1994 10/1994 11/1995 11/1995 9/1996 11/1996

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