CN1190817C

CN1190817C - A.C. plasm display screen and its production method

Info

Publication number: CN1190817C
Application number: CNB011138386A
Authority: CN
Inventors: 苏广庆; 姜淑珍; 李莉
Original assignee: 苏广庆
Priority date: 2001-04-11
Filing date: 2001-04-11
Publication date: 2005-02-23
Anticipated expiration: 2021-04-11
Also published as: CN1380673A

Abstract

The present invention relates to a matched device for manufacturing ultrathin television sets in an electronic industry and a manufacturing method of the matched device. Aiming to solve difficult problems generated from ultrathin display screens, the novel manufacturing method is developed. The method is composed of a plurality of working procedures of pretreating a front basal plate and a back basal plate, drying, laying electrodes, laying barriers, setting light emitting powder, sintering, sealing a box, etc. The present invention is characterized in that the laid electrodes, the laid barriers and the arranged light emitting powder are molded once. The present invention greatly increases rate of finished products, reduces product cost, causes continuous production to become true, and can be widely used in the industry of electric appliance production.

Description

A kind of production method of AC plasma display screen

Technical field

The present invention relates in the electrical apparatus industry a kind of production method of producing the support device of ultrathin TV.

Background technology

The release of ultra-thin television makes the household electric appliances new brand that has been born again, and is pleasurable.Yet, female electrode setting of its display screen prebasal plate, need with chromium, copper, chromium through three times repeatedly coating process just can finish, and the per pass operation all needs accurate mask to repeat contraposition; The barrier of metacoxal plate adopts accurate screen printing technique, Toshiba Corp test manufacture 42 " the wide 0.05mm of the barrier of plasma panel metacoxal plate, high 0.2mm; because of can only print the 0.02mm height at every turn; need be through 10 printing processs repeatedly; follow the tracks of and what come is 10 sintering repeatedly; 10 contrapositions repeatedly just can finish the setting of barrier, and each material therefor, temperature difference all; Other technologies such as employing sand-blast are provided with barrier, also all have problems such as technology is loaded down with trivial details, equipment is complicated, product cost height.

Summary of the invention

The purpose of the production method of a kind of AC plasma display screen of the present invention is a difficult problem that exists at above-mentioned prior art, adopts a kind of new method to produce the technology of ultra-thin display screen.Use new methods such as anti-oxidation wire, insulation and the laying of pyroceram silk, one-shot forming electrode, barrier have been simplified loaded down with trivial details operating procedure effectively, and serialization production is become a reality, and product cost reduces significantly.

A kind of production method of AC plasma display screen is made up of the operations such as preliminary treatment, photoetching, cleaning, oven dry, laying electrode, laying barrier, laying luminescent powder, sintering and envelope box of prebasal plate and metacoxal plate, it is characterized in that:

A) scribble indium stannum alloy ITO nesa coating on the surface of prebasal plate, after the photoetching, adopt laying process on the lines of nesa coating, lay anti-oxidation wire chromium-bronze and make female electrode, and establish insulating protective film in the above;

B) material of metacoxal plate can adopt float flat glass, also available alloy sheets or high-temperature engineering plastics sheet material more than 600 ℃; The barrier of metacoxal plate adopts insulation, resistant to elevated temperatures multiply glass fiber by the deconcentrator setting, and with after the adhesive bonds, through forming around knot, is 400 ℃～600 ℃ around junction temperature; Can also adopt the metacoxal plate thermoplastic, be in operation and make by the method for mould heat pressure moulding; Also can on metacoxal plate, apply high-temperature insulation coating by normal temperature, make barrier by mould; Can also adopt the photoetching of laser multiple beam to form barrier, perhaps adopt many grindings of boart boart turbine cutter head to cut into barrier;

When c) placing obstacles wall, in the groove between adjacent barrier, adopt chromium-bronze alloy silk to lay, form the conduction polar curve, once finish through sintering with deconcentrator;

D) laying of emitting red light powder R, green emitting powder G, blue-light-emitting powder B, the three-colour light-emitting powder adds bonding agent respectively and is mixed into pulpous state, adopt the trans-printing method, with the bat printing roller of three-colour light-emitting powder with diverse location, once the luminescent powder of three colors is printed respectively simultaneously and be located in the groove that is provided with conductive electrode, and behind sintering, form the luminous element of three kinds of color red, green, blues respectively; Can also utilize extrusion molding to lay the three-colour light-emitting powder, the three-colour light-emitting powder is aimed at the groove separately of metacoxal plate respectively by extruder head, clamp-ons respectively in the groove, again through sintering, forms the three primary colors luminous element respectively, and on metacoxal plate insulating protective film is set again;

E) with prebasal plate and metacoxal plate, with the encapsulant cryogenic glass powder make two plates around be sealed to integral body, and the air between two plates is vacuumized, afterwards,, promptly produce finished product with the inert gas inflation.

Good effect of the present invention is, the special equipment precision height of employing, and price is low; Disposal molding is all adopted in moulding such as electrode, barrier, red green blue tricolor luminous element, has simplified operation sequence widely, makes batch production turn to serialization production to become a reality; In the former film coating manufacturing process, because of the restriction of coating machine, the product size size is subjected to device-restrictive, and the screen size that adopts the present invention to produce can be made greatlyyer; Production efficiency increases substantially, and rate of finished products and product cost can improve and reduce about 90% respectively.

Description of drawings

Fig. 1, product structure schematic diagram of the present invention, wherein: 1 prebasal plate, 2 transparent conductive electrodes, 3,9 female electrodes, 4 electrodes, 5 metacoxal plates, 6 encapsulants, 7 barriers, 8 nesa coatings, 10,11 insulating protective films, R emitting red light powder, G green emitting powder, B blue-light-emitting powder, A show display screen A position;

Fig. 2, the amplification diagrammatic sketch at product structure schematic diagram Figure 1A of the present invention position;

Fig. 3, flow chart of the present invention.

Embodiment

In conjunction with the accompanying drawings the present invention is further made following specific descriptions.

Produce ultra-thin AC plasma display screen.At first get prebasal plate 1 and metacoxal plate 5 ready, after pretreatment process cleaning, oven dry, the indium stannum alloy ITO nesa coating 8 of prebasal plate 1 passes through photo-mask process, adopt laying method that anti-oxidation wire is set again, be that the chromium-bronze silk is made female electrode 3, use high-temp glue glass dust cemented in place simultaneously, through after the sintering circuit, coating protective film 10 thereon, and is standby; Through the metacoxal plate 5 after the oven dry, adopt deconcentrator in its surface, select insulation, resistant to elevated temperatures glass fiber, accurately lay barrier 7 according to the desired line number of display screen; The production of barrier also can be taked pressure sintering, makes metacoxal plate be heated to softening point, and constantly in service, by mould, the compression molding barrier; Also can adopt the machining mode, make metacoxal plate pass through the laser cutting machine of multiple beam head, or be ground to barrier by the diamond disk that is provided with many crops; Afterwards, when barrier is set, adopt deconcentrator, lay the chromium-bronze silk in the groove between two adjacent barriers as electrode 4, on the wire electrode of groove, adopt extrusion respectively with emitting red light powder R, green emitting powder G, blue-light-emitting powder B, be mixed into pulpous state with adhesive, clamp-on in the groove separately, promptly form the three primary colors luminous element that has electrode through oversintering again; The extrusion cavities of extruder can be established many groups, and luminescent powder of all kinds does not disturb mutually, so do not need mask, after the one-stop operation three primary colors all were squeezed into separately groove, covered with protective film 11 on substrate 5 again can be standby; After not needing to print redness, seal is green again, and then seal is blue again, all needs accurate contraposition operation at every turn, and sintering circuit repeatedly all saves, and rate of finished products increases substantially, and cost descends significantly; After then forward and backward substrate being adopted low temperature glass powder sintering envelope box, again it is vacuumized, and charge into after inert gas seals, promptly obtain finished product.

Claims

1. the production method of an AC plasma display screen is made up of the operations such as preliminary treatment, photoetching, cleaning, oven dry, laying electrode, laying barrier, laying luminescent powder, sintering and envelope box of prebasal plate and metacoxal plate, it is characterized in that:

A) scribble indium stannum alloy ITO nesa coating (8) on the surface of prebasal plate (1), after photoetching, adopt laying process disposable on nesa coating (8) lines with deconcentrator, lay with the anti-oxidation wire chromium-bronze silk of high temperature clear glass powder and make female electrode (3,9), and establish insulating protective film (10) in the above;

B) material of metacoxal plate (5) can adopt float flat glass, also available alloy sheets or high-temperature engineering plastics sheet material more than 600 ℃; The barrier (7) of metacoxal plate (5) adopts insulation, resistant to elevated temperatures multiply glass fiber by the deconcentrator setting, and with after the adhesive bonds, through forming around knot, is 400 ℃～600 ℃ around junction temperature; Can also adopt metacoxal plate (5) thermoplastic, be in operation and make by the method for mould heat pressure moulding; Also can on metacoxal plate, apply high-temperature insulation coating by normal temperature, make barrier by mould; Can also adopt the photoetching of laser multiple beam to form barrier (7), perhaps adopt many grindings of boart boart turbine cutter head to cut into barrier (7);

C) when barrier (7) is set, in the groove between adjacent barrier (7), lay chromium-bronze alloy silk, form the conduction polar curve through sintering, once finish;

D) emitting red light powder R, green emitting powder G, blue-light-emitting powder B three-colour light-emitting powder, after being mixed into pulpous state with adhesive respectively, adopt the trans-printing method, with the bat printing roller of three-colour light-emitting powder with diverse location, while is laid on the luminescent powder of three colors respectively in the groove that is provided with conductive electrode once, and forms the luminous element of three kinds of color red, green, blues behind sintering respectively; Can also utilize extrusion molding to lay the three-colour light-emitting powder, the three-colour light-emitting powder is aimed at the groove separately of metacoxal plate (5) respectively by extruder head, clamp-on in the groove respectively, through sintering, form the three primary colors luminous element respectively again, and go up spraying insulating protective film (11) at metacoxal plate (5);

E) with prebasal plate (1) and metacoxal plate (5), with the encapsulant cryogenic glass powder make two plates around be sealed to integral body through sintering, and after the air between two plates vacuumized,, promptly produce finished product with the inert gas inflation.