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US 4,900,981 AGranted
Flat-shaped display apparatus
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsFumio Yamazaki, Kaoru Tomii, Hiroshi Miyama, Toshifumi Nakatani, Kiyoshi Saeki
Life of this patent
Estimating the term…
Abstract
In a flat-shaped display apparatus has a face plate, a rear plate, side plates, and necessary electrodes therein, a supporting plate and plural supporting rods which are connected to an edge of the supporting plate at intervals of a certain distance are provided between the face plate and the rear plate. The supporting rods are made of metal and all bonded parts are covered by guide plates so that no adhesive is exposed to the electron beams. Therefore, over-scanning of the electron beams can be made, without the electron beams impinging on the adhesive thereby enabling effective distortion compensation.
Claims14
A display apparatus comprising:
- a face plate having a phosphor screen on an inner surface thereof,
- a rear plate provided apart from said face plate in parallel,
- side plates for forming a vacuum cavity by connecting said face plate and said rear plate with a given space therebetween,
- electron beam emitting means within said cavity for emitting electron beams, and
- plural rectangular supporting plates disposed in parallel to each other between said face plate and said rear plate, and substantially perpendicular to said face plate, wherein each respective supporting plate is supported by a plurality of column-shaped supporting rods, one end of each of said supporting rods being bonded by adhesive on an end of each respective supporting plate facing said face plate, said supporting rods being bonded at intervals of a certain distance in a lengthwise direction of each respective supporting plate, the other end of each of said supporting rods being tapered and touching said face plate at predetermined points.
2 more elements
A display apparatus comprising:
- a face plate having a phosphor screen on an inner surface thereof,
- a rear plate provided apart from said face plate in parallel,
- side plates for forming a vacuum cavity by connecting said face plate and said rear plate with a given space therebetween,
- electron beam emitting means within said cavity for emitting electron beams,
- plural rectangular supporting plates disposed in parallel to each other between said face plate and said rear plate, and substantially perpendicular to said face plate, wherein each respective supporting plate is supported by a plurality of column-shaped supporting rods, one end of each of said supporting rods being bonded by adhesive on an end of each respective supporting plate facing said face plate, said supporting rods being bonded at intervals of a certain distance in a lengthwise direction of each respective supporting plate, the other end of each of said supporting rods being tapered and touching said face plate at predetermined points, and
- guide means respectively disposed on both sides of said supporting plates for guiding said supporting rods and covering said adhesive.
3 more elements
A display apparatus comprising:
- a face plate having a phosphor screen on an inner surface thereof,
- a rear plate provided apart from said face plate in parallel,
- side plates for forming a vacuum cavity by connecting said face plate and said rear plate with a given space therebetween,
- electron beam emitting means within said cavity for emitting electron beams,
- plural supporting means disposed in parallel to each other between said face plate and said rear plate, and substantially perpendicular to said face plate, for supporting said face plate against atmospheric pressure outside said vacuum cavity, and
- respective electrode means including one electrode provided apart from respective surfaces of each of said supporting means by a space by using spacer means and adhesive along the paths of each of said electron beams.
3 more elements
A display apparatus comprising:
- a face plate having a phosphor screen on an inner surface thereof,
- a rear plate provided apart from said face plate in parallel,
- side plates for forming a vacuum cavity by connecting said face plate and said rear plate with a given space therebetween,
- electron beam emitting means within said cavity for emitting electron beams,
- plural supporting means disposed in parallel to each other between said face plate and said rear plate, and substantially perpendicular to said face plate, for supporting said face plate against atmospheric pressure outside said vacuum cavity, and
- each supporting means including a plurality of beam deflection electrodes, each beam deflection electrode having almost the same length as each other beam deflection electrode along the paths of each of said electron beams and also having almost the same length as each supporting means in a lengthwise direction thereof, each beam deflection electrode being disposed on a respective surface of each of said supporting means, and one of more than one of said beam deflection electrodes disposed on the same surface of one of said supporting means being bonded to a spacer member which is also bonded to said surface of said one supporting means by adhesive.
3 more elements
A display apparatus comprising:
- a face plate having a phosphor screen on an inner surface thereof,
- a rear plate provided apart from said face plate in parallel,
- side plates for forming a vacuum cavity by connecting said face plate and said rear plate with a given space therebetween,
- electron beam emitting means within said cavity for emitting electron beams,
- plural rectangular supporting plates disposed in parallel to each other between said face plate and said rear plate, and substantially perpendicular to said face plate, wherein each respective supporting plate is supported by a plurality of column-shaped supporting rods, one end of each of said supporting rods being bonded by adhesive on an end of each respective supporting plate facing said face plate, said supporting rods being bonded at intervals of a certain distance in a lengthwise direction of each respective supporting plate, the other end of each of said supporting rods being tapered and touching said face plate at predetermined points, and
- each supporting plate including a plurality of beam deflection electrodes, each beam deflection electrode having almost the same length as each other beam deflection electrode along the paths of each of said electron beams and also having almost the same length as each supporting plate in a lengthwise direction thereof, each beam deflection electrode being disposed on a respective surface of each of said supporting plates.
3 more elements
A display apparatus comprising:
- a face plate having a phosphor screen on an inner surface thereof,
- a rear plate provided apart from said face plate in parallel,
- side plates for forming a vacuum cavity by connecting said face plate and said rear plate with a given space therebetween,
- electron beam emitting means within said cavity for emitting electron beams,
- plural rectangular supporting plates disposed in parallel to each other between said face plate and said rear plate, and substantially perpendicular to said face plate, wherein each respective supporting plate is supported by a plurality of column-shaped supporting rods, one end of each of said supporting rods being bonded by adhesive on an end of each respective supporting plate facing said face plate, said supporting rods being bonded at intervals of a certain distance in a lengthwise direction of each respective supporting plate, the other end of each of said supporting rods being tapered and touching said face plate at predetermined points, and
- each supporting plate including a plurality of beam deflection electrodes, each beam deflection electrode having almost the same length as each other beam deflection electrode along the paths of each of said electron beams and also having almost the same length as each supporting plate in a lengthwise direction thereof, each beam deflection electrode being disposed on a respective surface of each of said supporting plates, and one of more than one of said beam deflection electrodes disposed on the same surface of one of said supporting plates being bonded to a spacer member which is also bonded to said surface of said one supporting plate by adhesive.
3 more elements
Dependencies are inferred from the claim text.