Patent CA561664A successfully refreshed from Google Patents.
EP0532284A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Liquid crystal display device
Assignee: Sharp Corp
•
Filing: 1992-09-09
•
Granted: —
•
Expires: 2012-09-09
Abstract
Abstract A liquid crystal display device includes a liquid crystal display plate (11) having corner portions thereof, a illuminating device (12) for illuminating the liquid crystal display plate (11) from a rear side of the liquid crystal display plate (11), the illuminating device (12) including a light guiding plate (21) disposed on a rear side of and parallel to the liquid crystal display plate (11) and a light source (22) disposed at an end portion of the light guiding plate (21), a supporting frame (13) for supporting the illuminating device (12), the supporting frame (13) having corner portions thereof, holding members (31a,31b,31c,31d) disposed on the corner portions of the supporting frame (13) for holding the corner portions of the liquid crystal display plate (11) in an electrically insulating state, and an engaging unit (32) for engaging the holding members (31a,31b,31c,31d) with the supporting frame (13).
Inventors
- 👤 Masakazu Komano
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 22:37
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133308; G02F1/133314; G02F1/133325
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
157 words
A liquid crystal display device comprising a liquid crystal display plate (11) having corner portions thereof, an illuminating device (12) for illuminating said liquid crystal display plate (11) from a rear side of said liquid crystal display plate (11), said illuminating device (12) having a light guiding plate (21) disposed on a rear side of and parallel to said liquid crystal display plate (11) and a light source (22) disposed at an end portion of said light guiding plate (21), said liquid crystal display device further comprising a supporting frame (13) for supporting said illuminating device (12) having corner portions thereof, characterized in that said liquid crystal display device comprising: holding means (31a,31b,31c,31d) disposed on said corner portions of said supporting frame (13) for holding said corner portions of said liquid crystal display plate (11) in an electrically insulating state; and means (32) for engaging said holding means (31a, 31b, 31c, 31d) with said supporting frame (13).
Claim 2
Dependent Claim
31 words
A liquid crystal display device according to claim 1, wherein said holding means (31a,31b,31c,31d) include a liquid crystal display plate positioning means (33) for positioning said liquid crystal display plate (11).
Claim 3
Dependent Claim
30 words
A liquid crystal display device according to claim 2, wherein said holding means (31a,31b,31c,31d) further include a light guiding plate positioning means (34) for positioning said light guiding plate (21).
Claim 4
Dependent Claim
28 words
A liquid crystal display device according to claim 3, wherein said holding means (31a,31b,31c,31d) further include a light source positioning means (35) for positioning said light source (22).
Claim 5
Dependent Claim
36 words
A liquid crystal display device according to claim 4, wherein said holding means (31a,31b,31c,31d) further include a lead fixing means (36) for fixing input/output leads (22a) of said light source (22) within said supporting frame (13).
Claim 6
Dependent Claim
50 words
A liquid crystal display device according to claim 1, wherein said engaging means (32) includes lugs (51a,51b) protruding from either said supporting frame (13) or said holding means (31a,31b,31c,31d), and recesses (52) formed on either said holding means (31a,31b,31c,31d) or said supporting frame (52) and engaging with said lugs (51a,51b).
Claim 7
Dependent Claim
57 words
A liquid crystal display device according to claim 2, wherein said liquid crystal display plate positioning means (33) includes a notched portion (56) formed on said holding means (31a,31b,31c,31d), said notched portion (56) having a supporting surface (57 or 58) which can be brought into contact with the corner portion of said liquid crystal display plate (11).
Claim 8
Dependent Claim
34 words
A liquid crystal display device according to claim 3, wherein said light guiding plate positioning means (34) comprises a contact wall (59) of said holding means (31a,31b,31c,31d) which faces said light guiding plate (21).
Claim 9
Dependent Claim
35 words
A liquid crystal display device according to claim 4, wherein said light source positioning means (35) comprises a pair of engaging claws (61a,61b) which protrude from said holding means (31a,31b,31c,31d) toward said light source (22).
Claim 10
Dependent Claim
24 words
A liquid crystal display device according to claim 5, wherein said lead fixing means (36) comprises grooves (62) formed in said holding means (31a,31b,31c,31d).
Claim 11
Dependent Claim
41 words
A liquid crystal display device according to claim 1, further comprising a lead extension guiding means (37) which is removably attached on said supporting frame (13) to externally extend a bundle of said input/output leads (22a) of said light source (22).
Claim 12
Dependent Claim
97 words
A liquid crystal display device comprising: a liquid crystal display panel (11); an illumination panel (21) for backlighting said display panel; and a support frame (13) which supports said display panel and said illumination panel with said illumination panel disposed behind and in parallel with said display panel; holding means, comprising a plurality of holding elements (31a to d) inserted and fixedly disposed in said support frame, and engaging respective corner portions of said display panel so as to locate said display panel in said support frame; said holding elements also serving to position said illumination plate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.