EP0441398A2
Expired / Lapsed
EP
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Display panel unit
Assignee: Casio Computer Co Ltd
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Filing: 1991-02-08
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Granted: —
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Expires: 2011-02-08
Abstract
Abstract Disclosed is a matrix liquid crystal display panel unit which enables to decrease a useless space (A) around the real display area. The unit comprises a liquid crystal display panel (20), a holder (21) for carrying the display panel (20), a circuit board (23) disposed under the holder (21) and, at least, a pair of IC packages (22-1, 22-2) each having a wiring board (4) and an IC chip (7). The display panel (20) includes an upper electrode plate (25) with a first edge and a lower electrode plate (26) with a second edge (26b), and is provided with an intersection (A) where the first and second edges (25a, 26b) are crossing. One (22-1) of the IC packages is disposed along the first edge (25a), the other (22-2) along the second edge (26b), respectively, in the vicinity of the intersection (A). Each of the wiring boards (23) of the IC packages (22-1, 22-2) has an oblique edge (33) which gradually goes away to each other in the direction to the circuit board (23).
Inventors
- 👤 Shinji C/O Pat. Dep. Development Div. Wakisaka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 08:29
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13452; H; H05; H05K; H05K1/00; H05K1/02; H05K1/14; H05K3/00; H05K3/36; H05K3/361
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
169 words
A display panel unit, comprising: a display panel (20) having a first edge portion (25a), second edge portion (26b) in the orthogonal direction to said first edge portion (25a), a plurality of column electrode terminals arranged on said first edge portion (25a) and a plurality of row electrode terminals arranged on said second edge portion (26b), said display panel (20) having a corner region (A) where said first and second edge portions (25a, 26b) are crossing; a first IC package (22-1) mounted on said display panel (20) along said first edge portion (25a) in the vicinity of said corner region (A); and a second IC package (22-2) mounted on said display panel (20) along said second edge portion (26b) in the vicinity of said corner region (A), said first and second IC packages (22-1, 22-2) including flexible wiring boards (4) and IC chips (7), characterized in that at least one of said flexible wiring boards (4) has an oblique cut-out portion (33) at the position opposing said corner (A).
Claim 2
Dependent Claim
53 words
The display panel unit according to claim 1, characterized in that said display panel (20) includes a first electrode plate (25) having said first edge portion (25a) and a plurality of column electrode terminals, and a second electrode plate (26) having said second edge portion (26b) and a plurality of row electrode terminals.
Claim 3
Dependent Claim
26 words
The display panel unit according to claim 2, characterized in that said display panel unit further comprises a holder (21) for carrying said display panel (20).
Claim 4
Dependent Claim
30 words
The display panel unit according to claim 3, characterized in that said display panel unit further comprises a circuit board (23) to which said wiring boards (4) are electrically connected.
Claim 5
Dependent Claim
23 words
The display panel unit according to claim 3, characterized in that said circuit board (23) is fixed to said holder (21) by adhesive.
Claim 6
Dependent Claim
39 words
The display panel unit according to claim 5, characterized in that said circuit board (23) and said holder (21) have side edges (23a, 21a) which are aligned so as to form a single on the surface to each other.
Claim 7
Dependent Claim
41 words
The display panel unit according to claim 5, characterized in that said display panel unit further comprises an electronic part (29) mounted on said circuit board (23) and said holder (21) has a cavity (31) to accommodate said electronic part (29).
Claim 8
Dependent Claim
25 words
The display panel unit according to claim 5, characterized in that said circuit board (23) has a cavity (35) to accommodate said IC chip (7).
Claim 9
Dependent Claim
30 words
The display panel unit according to claim 5, characterized in that said flexible wiring board (4) comprises an insulating flexible board (5) and a plurality of electric conductive leads (6).
Claim 10
Dependent Claim
30 words
The display panel unit according to claim 9, characterized in that said insulating flexible board has two slits (9) formed in the orthogonal direction to said electric conductive leads (6).
Claim 11
Dependent Claim
21 words
The display panel unit according to claim 10, characterized in that said display panel (20) is a liquid crystal display panel.
Claim 12
Dependent Claim
237 words
A liquid crystal display panel unit, comprising: a liquid crystal panel (20) including an upper electrode plate (25) having a first (25a) edge and column electrodes, and a lower electrode plate (26) having a second edge (26b) and row electrodes in the orthogonal direction to said row electrodes, said liquid crystal panel (20) being provided with an intersection (A) at the portion where said first edge (25a) of said upper electrode plate (25) and said second edge (26b) of said lower electrode plate (26) are crossing; a holder (21) having front side and rear side and carrying said liquid crystal display panel (20) on said front side; a circuit board (23) disposed on said rear side of said holder (21); and a pair of IC packages (22-1, 22-2), each having a flexible wiring board (4) and an IC chip (7) for connecting said electrodes of said liquid crystal display panel (20) to said circuit board (23), one (22-1) of said IC packages disposed along said first edge (25a) of said upper electrode plate (25) in the vicinity of said intersection (A) and the other (22-2) along said second edge of said lower electrode plate (26) in the vicinity of said intersection (A), characterized in that each of said wiring boards (4) of said IC packages (22-1, 22-2) has an oblique edge (33) which gradually goes away to each other in the direction to said circuit board (23).
References Cited (Backward Citations)
No citation records indexed.
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