CN1870208A - Electrode of substrate in front of plasma display screen and its manufacturing method - Google Patents

Abstract

A method for preparing front base plate of plasma display screen includes printing black and white photosensitive silver size on glass planar plate to form film layer, carrying out exposure on said film layer by mask plate with electrode and black bar pattern in exposure machine after drying, forming a collecting electrode with black bar after developing and drying as well as sintering, coating dielectric layer on glass planar plate then sintering it to form front base plate. The front base plate electrode of plasma display screen is also disclosed.

Description

A kind of electrode of substrate in front of plasma display screen and preparation method thereof

Technical field

The invention belongs to the gas discharge technical field, relate to a kind of electrode structure of front substrate of plasma display screen, the invention still further relates to the manufacture method of this electrode structure.

Background technology

In recent years, as the colour picture display unit of large-screen and thin thickness, surperficial AC discharge type plasma display receives much concern, and existing forward family popularizes.

General AC gas discharge display screen all adopts the surface discharge type structure at present, it comprises a prebasal plate and the metacoxal plate of sealing with it, dispose transparency electrode ITO and bus electrode on prebasal plate, transparency electrode and bus electrode have constituted sparking electrode jointly.

Surface discharge type color plasma display prebasal plate, the main at present structure that adopts has: bar shaped transparency electrode and bus electrode structure, T type transparency electrode and bus electrode structure.The transparency electrode of this structure and bus electrode all adopt composite construction, its technology cost height, and aligning accuracy requires high, and interelectrode electric capacity is big.After electrode preparation finishes in addition,, also need to prepare secret note, its complex process, cost height for increasing the contrast of plasma panel.

Summary of the invention

The object of the present invention is to provide a kind of electrode of substrate in front of plasma panel, solved prior art owing to the high problem of complex process, cost that adopts transparency electrode and bus electrode composite construction to cause.

Another object of the present invention also is to provide a kind of manufacture method of above-mentioned electrode of substrate in front.

The technical solution adopted in the present invention is, a kind of electrode of substrate in front of plasma display screen, comprise the electrode pair of forming by conflux the Y electrode and the X electrode that confluxes more than at least two pairs, the Y electrode that confluxes is identical with the X electrode structure that confluxes, by at least two bar shaped electrodes be arranged in parallel and with it vertically disposed short-circuiting electrode forms strip electrode and short-circuiting electrode formation window-like discharge cell.

Characteristics of the present invention also are,

Conflux Y electrode and the gap of X electrode of confluxing is 60um～80um.

The width of every conflux Y electrode and every the X electrode that confluxes is 250um～350um.

The width of strip electrode is 40um～80um.

The width of short-circuiting electrode is 40um～80um.

Another technical scheme of the present invention is, the manufacture method of above-mentioned electrode of substrate in front, this electrode comprises the electrode pair of being made up of conflux the Y electrode and the X electrode that confluxes more than at least two pairs, the described Y of confluxing electrode is identical with the X electrode structure that confluxes, by at least two bar shaped electrodes be arranged in parallel and with it vertically disposed short-circuiting electrode form, strip electrode and short-circuiting electrode constitute the window-like discharge cell, may further comprise the steps:

At first the black-colored photosensitive silver paste is imprinted on the continuous rete of formation on the glass plate, oven dry, the control bake out temperature is 85 ℃～95 ℃, the time is 18 minutes～22 minutes;

Again white photosensitive silver slurry is imprinted on the continuous rete of formation on the glass plate, oven dry, bake out temperature is 85 ℃～95 ℃, the time is 18 minutes～22 minutes;

Then in exposure machine, to conflux the respectively electrode pattern of Y electrode and the mask plate of black strip pattern, the electrode pattern of the X electrode that confluxes and the mask plate of black strip pattern exposes, develops the rete on the glass plate, drying, sintering form conflux the Y electrode and the X electrode that confluxes respectively again, 85 ℃～95 ℃ of control bake out temperatures, 18 minutes～22 minutes time, 540 ℃～560 ℃ of sintering temperatures, 25 minutes～35 minutes time;

Form the Y electrode that confluxes, coating media layer on the glass plate of conflux X electrode and secret note, through sintering, the organic material in the burning-off dielectric layer is promptly finished the making of prebasal plate.

Electrode structure of the present invention, having possessed simultaneously confluxes keeps the function of electrode and show electrode, so no longer need transparent electrode structure, has not only saved interelectrode once accurate contraposition, and can save the preparation cost of the high transparency electrode of technological requirement; In addition, because no transparency electrode, interelectrode electric capacity descends, and color PDP screen power consumption is reduced, and the broken string phenomenon of having avoided original bus electrode to occur very effectively, has saved and has repaired and check cost.

Description of drawings

Fig. 1 is a prior art AC gas discharge display screen structural representation;

Fig. 2 is a prior art front base plate structure schematic diagram, and wherein, a is bar shaped transparency electrode and bus electrode structure, and b is T type transparency electrode and bus electrode structure;

Fig. 3 is an electrode of substrate in front of plasma display screen structural representation of the present invention.

Among the figure, 1. prebasal plate, 2. transparency electrode, 3. bus electrode is 4. gone up dielectric layer, the 5.MgO film, 6. descend dielectric layer, 7. metacoxal plate, 8. addressing electrode, 9. phosphor powder layer 10. blocks, the Y electrode 11. conflux, the 12. X electrodes that conflux, 13. secret notes, 14. strip electrodes, 15. short-circuiting electrodes.

Embodiment

The present invention is described in detail below in conjunction with the drawings and specific embodiments.

Fig. 1 is the AC gas discharge display screen structural representation.Adopt the surface discharge type structure, comprise prebasal plate 1 and the metacoxal plate 7 of sealing with it, on prebasal plate 1, dispose transparency electrode 2 and bus electrode 3, transparency electrode 2 and bus electrode 3 have constituted sparking electrode jointly, and sparking electrode comprises and keeps sparking electrode X and scanning/keep sparking electrode Y, surface coverage at sparking electrode has dielectric layer 4 on one deck, is coated with one deck MgO film 5 on the last dielectric layer 4 as medium protective layer; On metacoxal plate 7, dispose and the orthogonal addressing electrode 8 of sparking electrode, be coated with dielectric layer 6 under one deck on the addressing electrode 8, dispose the barrier rib 10 parallel on the following dielectric layer 6 with its addressing electrode 8, and be coated with phosphor powder layer 9 in the bottom of barrier rib 10, at last prebasal plate 1, metacoxal plate 7 usefulness glass powder with low melting point are sealed, and be filled with Ne betwixt, commingle discharging gases such as Ar, Xe.

What Fig. 2 showed is prior art two class front base plate structure schematic diagrames commonly used, and a adopts bar shaped transparency electrode 2 and conflux Y electrode 11, X electrode 12 structures of confluxing, and b adopts T type transparency electrode 2 and conflux Y electrode 11, X electrode 12 structures of confluxing.This electrode of substrate in front structure, transparency electrode and bus electrode adopt composite construction, and aligning accuracy requires high, and the preparation technology of technology cost height, particularly transparency electrode requires particularly strict, and interelectrode electric capacity is big.

Electrode of substrate in front of plasma display screen of the present invention, comprise many electrode pairs of forming by conflux the Y electrode 11 and the X electrode 12 that confluxes, that Fig. 3 shows is the right structure embodiment of pair of electrodes, comprise the Y electrode 11 that confluxes that be arranged in parallel conflux X electrode 12 and secret note 13, conflux Y electrode 11 by three bar shaped electrodes 14 be arranged in parallel and with it vertically disposed many short-circuiting electrodes 15 form, strip electrode 14 and short-circuiting electrode 15 constitute the window-like discharge cell, conflux X electrode 12 by three bar shaped electrodes 14 be arranged in parallel and with it vertically disposed short-circuiting electrode 15 form, strip electrode 14 and short-circuiting electrode 15 constitute the window-like discharge cell, be connected by public electrode between each window-like separate unit and form conflux the Y electrode 11 and the X electrode 12 that confluxes, the discharging gap of the Y electrode 11 and the X electrode 12 that confluxes of confluxing is 60um～80um, the width of Y electrode 11 and every the X electrode 12 that confluxes of confluxing is 250um～350um, the width of strip electrode 14 is 40um～80um, the width of short-circuiting electrode 15 is 40um～80um, the size of the wicket that forms among Fig. 3 embodiment is long for about 100um, wide is about 70um, in the diagram wide at interval about about 80um, be the discharge cell interval, to being positioned at lower plate barrier 10, fillet is at interval about 50um, be interval in the discharge cell, purpose is for increasing effective reflective area.

The manufacture method of electrode of substrate in front of the present invention is, the black-colored photosensitive silver paste is imprinted on the continuous rete of formation on the glass plate, oven dry, bake out temperature is 85 ℃～95 ℃, time is 18 minutes～22 minutes, again white photosensitive silver slurry is imprinted on the continuous rete of formation on the glass plate, oven dry, bake out temperature is 85 ℃～95 ℃, time is 18 minutes～22 minutes, in exposure machine, the electrode pattern of Y electrode 11 and the mask plate of black strip pattern will conflux respectively then, the conflux electrode pattern of X electrode 12 and the mask plate of black strip pattern exposes to the rete on the glass plate, develop afterwards, again drying, sintering forms conflux the Y electrode 11 and the X electrode 12 that confluxes respectively, 85 ℃～95 ℃ of control bake out temperatures, 18 minutes～22 minutes time, 540 ℃～560 ℃ of sintering temperatures, 25 minutes～35 minutes time; Form the Y electrode 11 that confluxes, coating media layer on the glass plate of conflux X electrode 12 and secret note 13, through sintering, the organic material in the burning-off dielectric layer, so far prebasal plate completes.

Embodiment 1

The black-colored photosensitive silver paste is imprinted on the continuous rete of formation on the glass plate, oven dry, bake out temperature is 85 ℃, time is 18 minutes, again white photosensitive silver slurry is imprinted on the continuous rete of formation on the glass plate, oven dry, bake out temperature is 85 ℃, time is 18 minutes, by the mask plate that has electrode pattern and black strip pattern the rete on the glass plate is exposed in exposure machine then, develop, again drying, sintering forms conflux the Y electrode 11 and the X electrode 12 that confluxes respectively, 85 ℃ of control bake out temperatures, 18 minutes time, 540 ℃ of sintering temperatures, 25 minutes time; Form the Y electrode 11 that confluxes, coating media layer on the glass plate of conflux X electrode 12 and secret note 13, through sintering, the organic material in the burning-off dielectric layer is just finished the making of prebasal plate.

Embodiment 2

The black-colored photosensitive silver paste is imprinted on the continuous rete of formation on the glass plate, oven dry, bake out temperature is 95 ℃, time is 22 minutes, again white photosensitive silver slurry is imprinted on the continuous rete of formation on the glass plate, oven dry, bake out temperature is 95 ℃, time is 22 minutes, by the mask plate that has electrode pattern and black strip pattern the rete on the glass plate is exposed in exposure machine then, develop, again drying, sintering forms conflux the Y electrode 11 and the X electrode 12 that confluxes respectively, 95 ℃ of control bake out temperatures, 22 minutes time, 560 ℃ of sintering temperatures, 35 minutes time; Form the Y electrode 11 that confluxes, coating media layer on the glass plate of conflux X electrode 12 and secret note 13, through sintering, the organic material in the burning-off dielectric layer is just finished the making of prebasal plate.

Y electrode 11, X electrode 12 and the secret note 13 of confluxing are being made with opening on the motherboard simultaneously consistency because the present invention will be confluxed, therefore reduce operation, improved make efficiency, avoided the process complexity of transparency electrode preparation, save interelectrode once accurate contraposition, saved the technology cost greatly.

Claims (6)

1. electrode of substrate in front of plasma display screen, comprise the electrode pair of forming by conflux the Y electrode (11) and the X electrode (12) that confluxes more than at least two pairs, it is characterized in that, the described Y of confluxing electrode (11) is identical with X electrode (12) structure of confluxing, by at least two bar shaped electrodes (14) be arranged in parallel and with it vertically disposed short-circuiting electrode (15) forms strip electrode (14) and short-circuiting electrode (15) formation window-like discharge cell.

2. according to the described electrode of substrate in front of claim 1, it is characterized in that the gap of the described Y of the confluxing electrode (11) and the X electrode (12) that confluxes is 60um～80um.

3. according to the described electrode of substrate in front of claim 1, it is characterized in that the width of described every conflux Y electrode (11) and every the X electrode (12) that confluxes is 250um～350um.

4. according to the described electrode of substrate in front of claim 1, it is characterized in that the width of described strip electrode (14) is 40um～80um.

5. according to the described electrode of substrate in front of claim 1, it is characterized in that the width of described short-circuiting electrode (15) is 40um～80um.

6. according to the manufacture method of the described electrode of substrate in front of claim 1, it is characterized in that, this electrode comprises the electrode pair of being made up of conflux the Y electrode and the X electrode that confluxes more than at least two pairs, the described Y of confluxing electrode is identical with the X electrode structure that confluxes, by at least two bar shaped electrodes be arranged in parallel and with it vertically disposed short-circuiting electrode form, strip electrode and short-circuiting electrode constitute the window-like discharge cell, and this method may further comprise the steps:

At first the black-colored photosensitive silver paste is imprinted on the continuous rete of formation on the glass plate, oven dry, the control bake out temperature is 85 ℃～95 ℃, the time is 18 minutes～22 minutes;

Again white photosensitive silver slurry is imprinted on the continuous rete of formation on the glass plate, oven dry, bake out temperature is 85 ℃～95 ℃, the time is 18 minutes～22 minutes;

Then in exposure machine, to conflux the respectively electrode pattern of Y electrode and the mask plate of black strip pattern, the electrode pattern of the X electrode that confluxes and the mask plate of black strip pattern exposes, develops the rete on the glass plate, drying, sintering form conflux the Y electrode and the X electrode that confluxes respectively again, 85 ℃～95 ℃ of control bake out temperatures, 18 minutes～22 minutes time, 540 ℃～560 ℃ of sintering temperatures, 25 minutes～35 minutes time;

Form the Y electrode that confluxes, coating media layer on the glass plate of conflux X electrode and secret note, through sintering, the organic material in the burning-off dielectric layer is promptly finished the making of prebasal plate.