JP2000133151A - Plasma display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a clearance between plural panels arranged in one direction by obliquely arranging a front surface panel and a back surface panel for selecting two-dimensional picture element with a combination thereof with each other in relation to the arrangement direction in a display area, and taking all the electrodes out of two edges of the panels opposite to each other. SOLUTION: In a front substrate 1, XY electrodes 103, 104 cover a triangle area of an upper half part in right and a lower half part in left of a display area 112, and are extended to XY electrode terminals 113, 114 of an upper part in right and a lower part in left of the front substrate 1. In a back substrate 2, address electrodes 105, 106 respectively cover a triangle area of an upper half part in left and a lower half part in right of the display area 112, and are extended to address electrode terminals 115, 116 of an upper part in right and a lower part in left of the front substrate 1. Each electrode terminal 113, 114, 115, 116 are connected to a circuit board through a flexible sheet. All the electrodes are connected to two edges of an upper and a lower edges of the panel so as to restrict a clearance between plural panels arranged in the right and left direction to a width of a seal part 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-sized display used for public meetings or meetings, education, games, etc. of a large number of members.

[0002]

2. Description of the Related Art FIG. 8 is a diagram showing a conventional large-sized plasma display. In the figure, 1 is a front substrate on the display surface side, and 2 is a rear substrate on the back surface side. The front substrate 1 and the rear substrate 2 are overlapped, and the periphery of the overlapped portion is sealed with frit glass, exhausted from an exhaust hole, and sealed with discharge gas. An X electrode 4 and a Y electrode 3 running in the lateral direction are formed on the front substrate 1 and are respectively drawn out of the left and right display units, where they are connected to an external circuit via a flexible sheet. An address electrode 5 for selecting a pixel is formed on the rear panel. Address electrode 5
Are drawn out to the upper side and the lower side, and are connected to an external circuit via a flexible sheet there.

[0003] The driving method of the AC type plasma display is described in the document "Latest Technology of Plasma Display" (Shigeo Mikoshiba ED Research). In an AC type plasma display, writing is performed on all pixels prior to display by utilizing memory properties, and after writing, all written pixels are discharged to perform display. Writing is an operation of discharging between the X electrode and the address electrode to accumulate wall charges on the X electrode. The writing operation is performed in a so-called line sequence for each line along the X electrode. AC plasma displays are currently 40 diagonal
-50 inch panels are being manufactured.

[0004]

Although these panels are large as displays, larger panels may be required when used as displays in public places. For example, there may be a case where a horizontally long display is placed along a long passage to display a notice or guidance to a person walking along the passage. For such a request, for example, 4
This can be achieved by connecting a large number of 0-inch plasma displays. However, the 40-inch plasma display has a non-display part of several cm or more outside the display area, and the width of the joint non-display part is about 10 cm even if the displays are arranged without gaps.

[0005] Since the non-display portion hinders the display of a continuous image, it is desirable that the non-display portion be as small as possible. The non-display portion is (1) a lead terminal for an electrode, and (2) a frit glass space for sealing the front panel and the rear panel. On the other hand, it is practically impossible to manufacture an elongated display of 1 to 5 m in a single body so as not to form a non-display portion at all, because it requires high manufacturing technology and requires large-scale manufacturing equipment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem. When a display having a length of several meters is constructed by arranging flat displays of a 40-inch size, a non-display portion is minimized. It is an object of the present invention to provide a plasma display panel in which the number is reduced.

[0007]

A plasma display panel according to a first configuration of the present invention performs two-dimensional pixel selection by a combination of an electrode formed on a front panel and an electrode formed on a back panel. In a plasma display in which information is displayed by arranging this display, at least one of the electrodes is formed so as to form an angle different from 180 or 90 degrees with respect to the arrangement direction in the display area, and all the electrodes are formed. The terminals are taken out from only two opposite sides of the panel.

Further, in the plasma display panel according to the second configuration of the present invention, the address electrodes on the rear panel are perpendicular to the arrangement direction, and the electrodes formed on the front panel and the rear panel are arranged in two directions perpendicular to the arrangement direction. It is pulled out to both and joined to the external drive circuit.

In a plasma display panel according to a third configuration of the present invention, in a plasma display in which electrodes formed on a front panel and a rear panel are drawn from two adjacent sides, two adjacent sides having no electrode lead are joined. It is arranged to be.

A plasma display panel according to a fourth structure of the present invention has ribs having a width at least twice as large as that of the sealing portion between the R, G, and B phosphor patterns on the back panel. .

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a diagram schematically showing a plasma display panel according to Embodiment 1 of the present invention. In the figure, 1 indicates a front substrate, and 2 indicates a rear substrate. 103 (solid line) is an X, Y electrode formed on the front substrate drawn out at the top of the panel (here, one pair of X and Y is shown as one for simplicity), 104 (solid line) is a front substrate drawn out at the bottom of the panel X and Y electrodes (one pair of X and Y are shown), 105 (dotted line) is an address electrode drawn to the top of the panel formed on the back panel, and 106 (dotted line) is formed on the back panel. Address electrodes drawn out from the lower part of the panel. Reference numeral 7 denotes a portion where frit glass for sealing the front panel and the rear panel is formed, and 8 denotes an exhaust hole. The display area of the plasma display panel is a hatched area indicated by reference numeral 112.

Reference numerals 109, 110, and 111 denote R, G, and B pixels to be displayed, respectively. In the figure, other components such as a barrier rib and a phosphor are not shown. The X and Y electrodes 103 on the front substrate cover the upper right half triangular area of the display area 112 and extend to the terminal 113 on the upper left of the front substrate. The X and Y electrodes 104 on the front substrate cover the lower left half triangular area of the display area 112 and similarly extend to the lower right terminal section 114. The X and Y electrodes on the front substrate are connected to the circuit board via the flexible sheets at the terminal portions 113 and 114.

The address electrodes 105 on the rear substrate cover the upper left half of the display area 112 and are drawn out to the upper right terminal 115. The address electrodes 106 on the rear substrate are in the display area 11
2 covers the lower right half and is drawn out to the lower left terminal 116. The electrode terminals 115 and 116 on the rear substrate are connected to the circuit substrate via a flexible sheet.

The front substrate 1 has a shape obtained by cutting the upper right corner and the lower left corner of a rectangle, and the rear substrate 2 also has a rectangular upper left corner.
The lower right corner is cut off. These are terminals 113 and 114 on the front substrate and terminals 115 and 11 on the rear substrate.
6 to expose the flexible sheet so that the flexible sheet can be connected thereto.

By collecting the electrode terminals on the upper and lower sides as described above, the display area can be formed as far as the inner side of the sealing frit on the side surfaces of the left and right substrates.

Although not shown in the drawing, the barrier ribs on the rear substrate are formed in stripes in the same direction as the address electrodes so as to sandwich each address electrode of the display section. Also, between the barrier ribs, red (R), green (G), and blue (B) ultraviolet-excited phosphor patterns are repeatedly formed in this order from the end, similarly to the conventional example. One pixel corresponds to 109, 1 corresponding to red (R), green (G), and blue (B), respectively.
It is composed of three rectangles of 10, 111 (parallelogram depending on the angle of the electrode).

Each pixel of each color is provided with an address electrode 10.
5 and 106 and the X and Y electrodes 103 and 104 are independently and uniquely selected. This can be performed in exactly the same manner as in a conventional plasma display panel in which X, Y electrodes and address electrodes are orthogonal. That is, the XY electrodes are composed of a pair of upper and lower electrodes 201, 202, 203, 204,.
In this order, writing may be performed in a so-called line-sequential manner.

By arranging an arbitrary number of panels according to the present embodiment horizontally as shown in FIG. 3, the screen can be enlarged and a horizontally long display can be realized.

Embodiment 2 FIG. 4 is a front view of a plasma display panel according to Embodiment 2 of the present invention.
In the first embodiment, the address electrodes on the rear substrate are formed obliquely with respect to the substrate. However, in the present embodiment, the address electrodes are parallel to the vertical direction of the substrate. The front substrate is the same as in the first embodiment.
The address electrodes 105 in the right half of the display area 112 indicated by oblique lines on the back panel are drawn out to the upper electrode terminals 115,
The left half address electrode 106 is led out to the lower electrode terminal 116. The barrier rib is the address electrode 1 in the display area.
05 and 106 are formed in a stripe shape in the vertical direction in the figure. The phosphor patterns of the phosphors R, G, B are arranged between the barrier ribs R, G, B, R, G, B,.
Are formed repeatedly.

The pixels of the plasma display according to the present embodiment are constituted by three parallelograms 109, 110 and 111 corresponding to red (R), green (G) and blue (B), respectively. Pixel selection can be performed in exactly the same way as in the first embodiment by line-sequential writing to each pixel.

In the plasma display according to the present embodiment, barrier ribs are formed on the back panel, and the phosphor pattern is formed in stripes in the vertical direction of the panel. Usually, in the screen printing process, the above-described pattern is formed such that the printing direction matches the stripe direction. For this reason,
In particular, in the case of manufacturing by a screen printing process, the plasma display panel of the present embodiment can be manufactured by an apparatus that prints in the vertical or horizontal direction of the panel in the same manner as in manufacturing a conventional plasma display panel. It is.

Embodiment 3 FIG. FIG. 5 is a front view of the plasma display according to the third embodiment of the present invention, and FIG. 6 is an arrangement diagram of the plasma display according to the third embodiment of the present invention. The display area 112 is a triangle different from the first embodiment.

The XY electrodes 103 on the front panel are
Are formed in a stripe shape in the longitudinal direction of the electrode terminal 113.
Has been drawn to. Address electrode 105 on rear panel
Are formed in a stripe shape in the longitudinal direction of the back substrate 2 and are drawn out to the electrode terminals 115. The display area of the panel is 1
In the non-display area, the discharge gap is widened so as not to emit light.
The structure of the panel is the same as that of the conventional plasma display. Regarding driving, writing to each pixel can be performed by the XY electrode 103 and the address electrode 105 as in the conventional case.

In the plasma display according to the present embodiment, the stripe-shaped barrier ribs and the phosphor pattern on the back panel coincide with the vertical and horizontal directions of the substrate, as in the third embodiment. Therefore, even in the case of manufacturing by a screen printing process as in the third embodiment, it is possible to manufacture using a device that prints in the vertical or horizontal direction of the panel in the same manner as in manufacturing a conventional plasma display panel.

In the present embodiment, the display area 112 is formed as a triangle so that the entire display area when arranged is a parallelogram. However, if it is desirable that the display area be the entire rectangular area where the X, Y electrodes 103 and the address electrodes 105 intersect depending on the display target, the display area does not need to be limited to a triangle.

Embodiment 4 FIG. 7 is a front view and a sectional view of a part of a boundary between plasma displays in a display area of the plasma display according to the fourth embodiment of the present invention. In the figure, reference numeral 706 denotes a part of an adjacent plasma display panel. The plasma display panel according to the present embodiment is the same as that described in the second embodiment,
On the front panel side, X, Y electrode pairs 104 are formed obliquely with respect to the substrate. Here, for simplicity, only the transparent electrodes are shown for the X and Y electrode pairs. On the rear panel side, address electrodes 106 (only the cross section is shown in the figure) are formed in stripes in the longitudinal direction of the substrate, and barrier ribs are formed of R, G,
7 formed between B cells 703, 704, and 705
02 and 7 formed between the RGB cell and the RGB cell.
01. R, G, B cells 703, 704,
R, G, and B phosphor patterns are formed in 705, respectively. The surface of the barrier rib is black.

Here, the pitch of the RGB set is 3 mm, of which the width d of the wide rib 701 is 2 mm, 703, 70
The area where 4,705 cells are formed has a width of 1 mm. Here, the width of the space of 703, 704, 705 is 20
0 μm, and the width g of the rib 702 is 200 μm. The width f of the sealing portion is a sum of the width g of the rib and the width of the frit glass 117, and is approximately 0.4 mm. In the figure, it is indicated by f.

The light-emitting portion is the cell portion 703, 704, 705 and the portion of the wide rib 701 does not emit light. Where d
= 2 and f = 0.4, so that d> 2 × f is satisfied, and the gap s between the panels is s = d−2f.
If only the light emitting units 703, 704, and 705 are viewed, the two plasma displays on the left and right sides of the boundary are completely continuous at the same pitch, so that a plasma display having an arrangement that looks completely seamless can be obtained. Although the area ratio of the light emitting portion is significantly reduced as compared with the conventional plasma display, the surface of the barrier rib is blackened, and the light emitting cell 703 is formed.
By increasing the emission intensity of 〜705, a contrast equivalent to that of the related art can be obtained.

In the present embodiment, the transparent electrodes of the X and Y electrodes are also provided above the wide ribs 701, but the transparent electrodes on the 701 may not be provided. Rather, it is more desirable to have no reactive power because it can reduce reactive power.

Although the present embodiment is based on the second embodiment, a similar structure can be created in the fourth embodiment to realize no joint.

[0031]

The plasma display panel according to the first configuration of the present invention performs two-dimensional pixel selection by a combination of electrodes formed on the front panel and electrodes formed on the rear panel, and arranges this display. In a plasma display that displays information by causing the display area to have at least one electrode formed at an angle different from 180 or 90 degrees with respect to the arrangement direction in the display area, and all electrode terminals are connected to the panel. Since the electrodes are taken out only from two opposing sides, both electrodes on the rear panel and the front panel can be drawn in two directions perpendicular to the arrangement direction. This has the effect of reducing the width.

In the plasma display panel according to the second configuration of the present invention, the address electrodes on the rear panel are perpendicular to the arrangement direction, and the electrodes formed on the front panel and the rear panel are arranged in two directions orthogonal to the arrangement direction. Since it is drawn out to both and joined to the external drive circuit, when manufacturing the ribs and the phosphor by the screen printing method, there is an effect that it is possible to manufacture the ribs and the phosphor without making a major change to the conventional manufacturing apparatus. is there.

In the plasma display panel according to the third configuration of the present invention, in a plasma display in which electrodes formed on a front panel and a rear panel are drawn out from two adjacent sides, two adjacent sides having no electrode lead are joined. Since they are arranged so as to be arranged, both the front panel and the rear panel have the same structure as the conventional plasma display panel. Therefore, it can be driven in exactly the same manner as a conventional plasma display panel, and when ribs and phosphors are manufactured by a screen printing method, it is possible to manufacture the ribs and phosphors without making significant changes to the conventional manufacturing apparatus. is there.

Further, in the plasma display panel according to the fourth configuration of the present invention, the ribs having a width twice or more as large as the sealing portion are formed between the R, G, and B phosphor patterns on the back panel. Are arranged, the non-display portion of the connection portion between the panels can be made equal to the gap between the pixels, and there is an effect that the display screen can be made completely jointless.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing a plasma display according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a method of line sequential writing of a plasma display according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a state in which the plasma displays according to the first embodiment of the present invention are arranged.

FIG. 4 is a front view of a plasma display according to a second embodiment of the present invention.

FIG. 5 is a front view of a plasma display according to a third embodiment of the present invention.

FIG. 6 is a diagram showing a state in which plasma displays according to a third embodiment of the present invention are arranged.

FIG. 7 is a front view and a cross-sectional view of a part of a boundary portion between plasma displays in a display area of the plasma display according to a fourth embodiment of the present invention.

FIG. 8 is a diagram showing a plasma display which is a conventional large display.

[Explanation of symbols]

Reference Signs List 1 front substrate, 2 rear substrate, 3 Y electrode, 4 X electrode, 5 address electrode, 7 sealing part, 8 exhaust hole, 10
3 XY electrodes leading to upper terminals, 104 XY electrodes leading to lower terminals, 105 address electrodes leading to upper terminals, XY electrodes leading to lower terminals, 109 R cells, 110 G cells, 1
11 B cell, 112 display area, 113 upper XY electrode terminal, 114 lower XY electrode terminal, 115 upper address electrode terminal, 116 lower address electrode terminal,
201, 202, 203, 204 XY electrodes for writing at once, 701 ribs between display cells, 702
Rib between RGB, 703R stripe cell, 704G
Stripe cell, 705 B stripe cell, 706
Adjacent plasma display panels, pitch between p display cells, f sealing width, s gap between panels, d RGB
Rib width between g, rib width between display cells.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masao Kano 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsui Electric Co., Ltd. (72) Inventor Osamu Kawano 2-3-2 Marunouchi, Chiyoda-ku, Tokyo 3 Rishi Electric Co., Ltd. (72) Inventor Tomiho Oya 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Sanishi Electric Co., Ltd. (72) Inventor Sayaka Kobayashi 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term (reference) within Denki Co., Ltd.

Claims (4)

[Claims] 1. A plasma display that performs two-dimensional pixel selection by a combination of an electrode formed on a front panel and an electrode formed on a rear panel and arranges the display to display information. Electrodes in the display area with respect to the arrangement direction.
Forming an angle different from 80 or 90 degrees,
A plasma display panel wherein terminals of all electrodes are taken out from only two opposite sides of the panel. 2. The method according to claim 1, wherein the address electrodes on the rear panel are arranged in a direction perpendicular to the arrangement direction, and the electrodes formed on the front panel and the rear panel are drawn out in both directions orthogonal to the arrangement direction and joined to an external drive circuit. The plasma display panel according to claim 1, wherein 3. The plasma display according to claim 1, wherein the electrodes formed on the front panel and the rear panel are drawn from two adjacent sides, and the two adjacent sides without electrode lead are joined and arranged. Plasma display panel. 4. The plasma display panel according to claim 2, wherein a rib having a width twice or more as large as the sealing portion is formed between the R, G, and B phosphor patterns on the rear panel. .