Microwave oven with NCAP liquid crystal operation display panel
First Claim
1. A heating apparatus comprising:
- a heater;
a heating chamber provided for accommodating food to be heated by the heater and having a front opening;
a door for closing and opening the front opening of the heating chamber;
an operation panel including;
a panel section disposed to be adjacent to the door; and
an operation section provided on the panel section and having a function of displaying a plurality of pieces of cooking information, the operation section including;
a liquid crystal element subsection comprising a nematic curvilinear aligned phase (NCAP) liquid crystal permitting light to pass therethrough when voltage is applied thereto;
an indicia subsection disposed to be laid on the liquid crystal element subsection and having a plurality of indicias corresponding to the pieces of cooking information, respectively; and
a switch subsection including a plurality of switches provided to correspond to the indicias of the indicia subsection, respectively; and
a heat shield provided between the door and the operation section for restricting heat transfer from the door to the operation section of the operation panel.
1 Assignment
0 Petitions
Accused Products
Abstract
A heating apparatus such as a microwave oven includes a magnetron and a heating chamber for accommodating food to be heated by microwaves generated by the magnetron. The heating chamber has a front opening opened and closed by a door. An operation panel is mounted to be adjacent to the door. The operation panel includes a panel section and an operation section mounted on the panel section and has a function of displaying a plurality of pieces of cooking information. The operation section includes a liquid crystal element subsection including a nematic curvilinear aligned phase (NCAP) liquid crystal permitting light to pass through it when voltage is applied to it, an indicia subsection laid on the liquid crystal element subsection and having a plurality of indicias corresponding to the pieces of cooking information, respectively, and a switch subsection including a plurality of switches corresponding to the indicias of the indicia subsection, respectively. A heat-resistant panel frame is mounted between the door and the operation section. The panel frame cuts off heat transmission through a gap between the heating chamber and the door and heat transmission from the door to the liquid crystal element subsection.
24 Citations
36 Claims
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1. A heating apparatus comprising:
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a heater; a heating chamber provided for accommodating food to be heated by the heater and having a front opening; a door for closing and opening the front opening of the heating chamber; an operation panel including; a panel section disposed to be adjacent to the door; and an operation section provided on the panel section and having a function of displaying a plurality of pieces of cooking information, the operation section including; a liquid crystal element subsection comprising a nematic curvilinear aligned phase (NCAP) liquid crystal permitting light to pass therethrough when voltage is applied thereto; an indicia subsection disposed to be laid on the liquid crystal element subsection and having a plurality of indicias corresponding to the pieces of cooking information, respectively; and a switch subsection including a plurality of switches provided to correspond to the indicias of the indicia subsection, respectively; and a heat shield provided between the door and the operation section for restricting heat transfer from the door to the operation section of the operation panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification