摘要:
In a display panel each of whose pixels has an electron emission element equipped with a pair of electrodes and an insulation area isolating these electrodes, the present invention specifies that the power supply line (scan line) connected with one of the pair of electrodes shall be formed thicker than the other electrode by screen printing using silver (Ag) paste or the like, and the power supply line and the one of the electrodes shall be connected together through an intermediary of the auxiliary electrode formed thinner than the power supply line, whereby a resistance of the power supply line is decreased, a voltage drop in the one electrode is controlled, and reliability of electrical connection between the power supply line and the one electrode is heightened.
摘要:
An image display device according to the present invention comprises a back panel on which a plurality of pixels each having a thin film electron emitter are arranged two-dimensionally, a front panel disposed opposite the back panel on which phosphor layer is formed, and a sealing frame with which the back panel and the front panel are fixed mutually to seal the plurality of pixels and the phosphor layer in a space enclosed by the back panel, the front panel, and the sealing frame, and is characterized in that double-layered signal lines each electrically connected to a group of the plurality of pixels are formed on the back panel, each of the double-layered signal lines consists of a lower-level electrode made from a silver paste and an upper-level electrode covering at least a part of the lower-level electrode laminated in this order on the back panel. The lower-level electrode is shaped e.g. by coating a groove formed in a surface of the back panel with the silver paste, and a surface of the upper-level electrode is used e.g. for an electrode of the thin film electron emitter, also. According to the configuration, the present invention reduces wiring resistance of the signal lines each electrically connected to the thin film electron emitters as well as improves planarity of each tunneling junction of the thin film electron emitters to suppress dispersion of electron emission property thereof among the pixels.
摘要:
The present invention provides a high-quality image display device which allows scanning line electrodes to exhibit a uniform film thickness and the uniform low resistance over a whole length thereof thus suppressing local resistance irregularities and broken steps of the scanning line electrodes. The present invention provides the stacked structure which is constituted of scanning line lower electrodes which are embedded in grooves formed in a main surface of an insulating substrate which constitutes a first substrate, a first insulating layer, signal line electrodes, a second insulating layer, a third insulating layer, and scanning line upper electrodes. Electron sources are constituted of the signal line electrodes, the second insulating layer and the scanning line upper electrodes.
摘要:
Although sintered wire with lower resistance was preferable as a scan line and a signal line in conventional art in order to make a voltage drop small, there was a problem in electric connection with an electrode which constructs a cathode. In the present invention, a cathode which has an electron-emitting region 16 on a substrate 10 is constructed of a base electrode 11, a top electrode 13, and a protective insulating film 14 sandwiched by these electrodes, the base electrode 11 becomes a signal line, and sintered wire 18, used as a scan line, and the top electrode 13 are connected with an sub-electrode 17. The sub-electrode 17 includes metal included in the sintered wire 18, and metal included in the top electrode 13.
摘要:
Inside surround desiccant pattern A surrounding an organic EL element by bonding an element substrate to a sealing board, outside surround desiccant pattern C surrounding the inside surround desiccant pattern A, and internal desiccant pattern (having a thinner film thickness than the inside surround desiccant pattern A) surrounded by the inside surround desiccant pattern A are formed on the sealing board by one time screen printing. For this purpose, a screen mask is utilized on which opening patterns for the inside and outside surround desiccant patterns A, C and an opening pattern having a narrower opening width than the opening patterns for A and C for forming an internal desiccant pattern are formed. With this configuration, it has been achieved to manufacture a highly reliable organic EL display apparatus in more simplified process.
摘要:
Inside surround desiccant pattern A surrounding an organic EL element by bonding an element substrate to a sealing board, outside surround desiccant pattern C surrounding the inside surround desiccant pattern A, and internal desiccant pattern (having a thinner film thickness than the inside surround desiccant pattern A) surrounded by the inside surround desiccant pattern A are formed on the sealing board by one time screen printing. For this purpose, a screen mask is utilized on which opening patterns for the inside and outside surround desiccant patterns A, C and an opening pattern having a narrower opening width than the opening patterns for A and C for forming an internal desiccant pattern are formed. With this configuration, it has been achieved to manufacture a highly reliable organic EL display apparatus in more simplified process.
摘要:
Disclosed is an image display apparatus having a construction such that ultraviolet rays irradiated from a second substrate side are prevented from propagating through a first substrate to reach its display area by providing a picture-frame resin film for shielding ultraviolet rays on that area of the first substrate that is to be sealed to the second substrate with a sealant. Thereby, when the sealant for sealing the substrates is cured by irradiation of ultraviolet rays, photo deterioration of organic materials constituting emitting layered products and semiconductor layers constituting active elements both of which are formed on the display area may be prevented, and a high-reliability and high-performance image display apparatus may be realized.
摘要:
An upper bus electrode is formed as a laminated wire of a metal film lower layer, a metal film intermediate layer and a metal film upper layer. Al lower in electrode potential is used as a low resistance material for the metal film intermediate layer of the upper bus electrode, while Cr high in heat resistance and oxidation resistance and higher in electrode potential than Al is used for the metal film lower and upper layers disposed as upper and lower layers. Al and Cr are selectively etched so that the metal film lower layer projects on one side and has an undercut on the other side with respect to the metal film intermediate layer. Thus, when the upper bus electrode has a structure using a laminated wire made of metal high in heat resistance and oxidation resistance, and metal low in resistance and sandwiched in the metal high in heat resistance and oxidation resistance, so as to separate an upper electrode from upper electrodes by self-alignment, deformation of the undercut portion due to oxidization of a side surface of the low-resistance metal is suppressed to improve the self-alignment separation characteristic of the upper electrode.
摘要:
A cap surrounding projection is formed on an outer periphery of a light transmitting cap substrate simultaneously with the formation of pixel separation banks. A surrounding recess is formed at a position, opposed to the cap surrounding projection, on a substrate provided with emitter elements, the projection and the recess being joined through a sealant with an absorbent arranged therein. With such a construction, it becomes possible to efficiently take out light from an emitting layer and to highly accurately seal the substrate provided with the emitter elements and the light transmitting cap substrate, thus realizing an organic electro-luminescence device of high reliability.
摘要:
In the display device having a plurality of electron emitter elements and an internal circuit connected to the electron emitter elements both being formed on a substrate and sealed within a sealing member, the present invention provides a lead line passing through the sealing member to connect the internal circuit with an external circuit and forms the internal circuit smaller in resistivity (specific resistance) than the lead line by e.g. forming the lead line thinner than the internal circuit to suppress voltage drop in the internal circuit as well as to secure the predetermined sealing condition of the electron emitter elements and the internal circuit.