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US 4,998,283 AGranted
Screen device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTsutomu Nishida, Kazumi Kawashima, Kazuyasu Yamamoto, Naoki Shintani, Naoji Okumura, Yasuaki Sakanishi
Life of this patent
Estimating the term…
Abstract
A screen device suited to use in a projection type display device for a high-definition television set. The screen device includes a screen on which television images are projected, and a screen frame to which this screen is attached at the central section thereof. Incorporated into this screen frame are speakers which are used as the front speakers of a sound reproduction system of the type which is commonly known as the 3-1 type 4-channel system.
Claims2
A screen apparatus, comprising:
- a screen onto which images are to be projected, said screen being divided into three vertical sections, respectively left side, center and right side sections;
- a screen frame surrounding and supporting said screen so as to allow said screen to oscillate independently of said screen frame, said screen frame having a left side part, center upper and lower parts, and a right side part;
- a group of speakers including at least one front-left channel tweeter, at least one front-center channel tweeter, at least one front-right channel tweeter, at least one front-left channel flat-type woofer having a diaphragm, a front-center channel flat-type woofer having a diaphragm and a front-right channel flat-type woofer having a diaphragm, said front-left channel tweeter being incorporated in said left side part of said screen frame, said front-center channel tweeter being incorporated in one of said center upper or lower parts of said screen frame, said front-right channel tweeter being incorporated in said right side part of said screen frame, said left side section of said screen being integrally incorporated with said diaphragm of said front-left channel woofer, said center section of said screen being integrally incorporated with said diaphragm of said front-center channel flat-type woofer and said right side section of said screen being integrally incorporated with said diaphragm of said front-right channel flat-type woofer.
A screen apparatus, comprising:
- a screen onto which images are to be projected;
- a screen frame surrounding and supporting said screen so as to allow said screen to oscillate independently of said screen frame, said screen frame having a left side part, center upper and lower parts, and a right side part;
- a group of speakers including at least one front-left channel tweeter, at least one front-center channel tweeter, at least one front-right channel tweeter and at least one woofer having a diaphragm, said front-left channel tweeter being incorporated in said left side part of said screen frame, said front-center channel tweeter being incorporated in one of said center upper and lower parts of said screen frame, said front-right channel tweeter being incorporated in said right side part of said screen frame, and said screen being integrally incorporated with said diaphragm of said woofer.
Dependencies are inferred from the claim text.