CN1755879A - Plasma display panel - Google Patents

Plasma display panel Download PDF

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Publication number
CN1755879A
CN1755879A CNA2005100817634A CN200510081763A CN1755879A CN 1755879 A CN1755879 A CN 1755879A CN A2005100817634 A CNA2005100817634 A CN A2005100817634A CN 200510081763 A CN200510081763 A CN 200510081763A CN 1755879 A CN1755879 A CN 1755879A
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China
Prior art keywords
discharge cell
electrode
area
viewing area
zone line
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Granted
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CNA2005100817634A
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Chinese (zh)
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CN100449676C (en
Inventor
权宰翊
姜景斗
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Samsung SDI Co Ltd
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Samsung SDI Co Ltd
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    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B1/00—Hats; Caps; Hoods
    • A42B1/24—Hats; Caps; Hoods with means for attaching articles thereto, e.g. memorandum tablets or mirrors
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B1/00—Hats; Caps; Hoods
    • A42B1/004—Decorative arrangements or effects
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B17/00—Press-button or snap fasteners
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G04G21/02—Detectors of external physical values, e.g. temperature
    • G04G21/025—Detectors of external physical values, e.g. temperature for measuring physiological data
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44D—INDEXING SCHEME RELATING TO BUTTONS, PINS, BUCKLES OR SLIDE FASTENERS, AND TO JEWELLERY, BRACELETS OR OTHER PERSONAL ADORNMENTS
    • A44D2203/00—Fastening by use of magnets

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Physiology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

The present invention discloses a plasma display panel capable of reducing or preventing panel breakage and aging failure during the aging process for discharge stabilization. The plasma display panel includes first and second substrates facing each other and having a display region at a center of the substrates, a non-display region formed around a periphery of the display region, and an intermediate region disposed between the display region and the non-display region. Address electrodes are formed on the first substrate and extend parallel to each other. Barrier ribs are arranged at the display region and the intermediate region. The barrier ribs define discharge cells between the substrates. Display electrodes are formed on the second substrate in a direction crossing the address electrodes. An area ratio of the display electrodes to corresponding discharge cells in the intermediate region is smaller than the area ratio thereof in the display region.

Description

Plasmia indicating panel
Technical field
The present invention relates to a kind of Plasmia indicating panel, relate to a kind of Plasmia indicating panel that prevents and degradation failure damaged particularly at the panel of the burin-in process that is used for discharge stability.
Background technology
Usually, Plasmia indicating panel (following abbreviation " PDP ") thus be the display unit that a kind of ultraviolet ray that produces by gas discharge in discharge cell comes the excited fluophor display image.Because PDP can constitute the display unit of high-resolution, wide screen, thus it as future frivolous display unit receive special concern.
PDP generally has triode surface discharge structure.This triode surface discharge PDP comprises that first substrate that has addressing electrode and first substrate are spaced apart and has two second substrates that are arranged on conplane electrode.The barrier rib is arranged between the two substrates to be separated out a plurality of discharge cells.
Viewing area and non-display area distinguish on two substrates, and discharge cell is used for display image in the viewing area, and non-display area has virtual region and the terminal area that is used for non-demonstration purpose.
The process of making Plasmia indicating panel at first is included in the step that forms addressing electrode, following insulating barrier, barrier rib and fluorescence coating on first substrate.The second, form on second substrate show electrode, on insulating barrier and MgO protective layer.The 3rd, first substrate and second substrate are assembled each other.The 4th, found time in the space between the two substrates, and discharge gas is injected this space.The 5th, make this discharge space aging to realize discharge stability.The 6th, this PDP and chassis base portion, drive circuit board and outer cover are assembled together.
In these were handled, burin-in process made the electricity of PDP and optical characteristics stable by the inner space that the makes discharge cell scheduled time slot that discharges.By burin-in process, in stable discharging gas, the MgO protective layer is activated, and the impurity in the fluorescence coating is removed.Particularly, when, discharging with a kind of stable manner when activating MgO protective layer surperficial by aging, fluorescence coating is launched bright enough light.Therefore, have higher discharge voltage and screen intensity through sufficiently aged PDP.
Actual burin-in process is to be undertaken by the waveform that alternately applies 20-50kHz, 200-350V to the scan electrode that belongs to show electrode and public electrode, and duty ratio typically is set to 40-70%.
Yet, in the burin-in process process, realizing the viewing area that shows and center between the non-display area of viewing area having produced temperature difference with discharge cell, PDP may be owing to this temperature difference and by damaged like this.
For example, when in the burin-in process process when show electrode applies the waveform with 60% duty ratio, 30kHz, 300V, the temperature of non-display area reaches about 30 ℃, and the temperature of viewing area reaches about 90 ℃.Therefore, the temperature difference between viewing area and the non-display area reaches 60 ℃, and this can directly cause the panel breakage.
Summary of the invention
One aspect of the present invention provides a kind of PDP, and it by reducing temperature difference between viewing area and the non-display area and/or rapid temperature gradient, minimizes or reduce panel breakage and degradation failure in the burin-in process process.
Of the present invention this can be realized by the PDP with following feature with other aspects on the one hand.
In one exemplary embodiment according to the present invention, PDP comprises first and second substrates opposing one another, it has in the viewing area at substrate center place, centers on the non-display area that this viewing area periphery forms, and is arranged in the zone line between viewing area and the non-display area.Addressing electrode is formed on first substrate and extends parallel to each other.The barrier rib is arranged in viewing area and zone line, and limits discharge cell between first substrate and second substrate.Fluorescence coating, it is formed in the discharge cell in the viewing area.Show electrode is formed on second substrate on the direction of intersecting with addressing electrode.Show electrode compares less than the area ratio of show electrode in the viewing area with corresponding discharge cell with the area of corresponding discharge cell in zone line.
According to an aspect of the present invention, in zone line corresponding to the area of the show electrode of each discharge cell less than in the viewing area corresponding to the area of the show electrode of each discharge cell.
This show electrode can comprise a pair of bus electrode that forms near each discharge cell outer periphery, and a pair ofly extends and projection electrode respect to one another to each discharge cell center from bus electrode.Can be corresponding to the area of the projection electrode of each discharge cell in the zone line less than area corresponding to the projection electrode of each discharge cell in the viewing area.
The width of in zone line, on the width of measuring on the longitudinal direction of bus electrode can be less than the longitudinal direction of projection electrode at bus electrode corresponding to each discharge cell in the viewing area, measuring corresponding to the projection electrode of each discharge cell.
According to a further aspect of the invention, near the area of show electrode in the zone line of non-display area and corresponding discharge cell than less than near the area ratio of show electrode in the zone line of viewing area with corresponding discharge cell.
Show electrode can comprise the bus electrode near each discharge cell periphery longitudinal extension on the direction of intersecting with addressing electrode, and from the projection electrode of bus electrode to each discharge cell center extension.Can be at area less than the area of the projection electrode in the close zone line of viewing area near the projection electrode in the zone line of non-display area.
The area of the projection electrode in zone line can be reduced to the second area near the projection electrode of non-display area gradually from first area near the projection electrode of viewing area.
The width that is parallel to the projection electrode of measuring on the direction of bus electrode at zone line can be reduced to second width near the projection electrode of non-display area gradually from first width near the projection electrode of viewing area.
Discharge cell in zone line can have essentially identical area each other.
The area of discharge cell can be greater than the area of discharge cell in the viewing area in zone line.Area near discharge cell in the zone line of non-display area can be greater than the area near discharge cell in the zone line of viewing area.
The area of discharge cell can increase to the second area near the discharge cell of non-display area gradually from first area near the discharge cell of viewing area in the zone line.
Zone line can be included on the show electrode direction the first dynatron zone of contiguous viewing area, and the second dynatron zone that is close to the viewing area on the direction of intersecting with show electrode.
The width of discharge cell can increase to second width near the discharge cell of non-display area gradually from first width near the discharge cell of viewing area in the first dynatron zone of measuring on the show electrode direction.The length of discharge cell can increase to second length near the discharge cell of non-display area gradually from first length near the discharge cell of viewing area in the second dynatron zone of measuring on the direction of intersecting with show electrode.
Show electrode corresponding to each discharge cell in zone line can have essentially identical each other area.
Addressing electrode can form in the viewing area, perhaps forms simultaneously in viewing area and zone line.
According to another aspect of the invention, the rear end of the projection electrode that links to each other with bus electrode reduces on width gradually towards bus electrode, and can form groove in the front edge center of paired projection electrode respect to one another.
So, in zone line corresponding to the rear end of each discharge cell and the projection electrode that links to each other with bus electrode on the width can less than in the viewing area corresponding to the rear end of the projection electrode of each discharge cell.In zone line corresponding to the width of the front edge of the paired projection electrode of each discharge cell can less than in the viewing area corresponding to the width of the front edge of the paired projection electrode of each discharge cell.
As mentioned above, in the PDP of the one exemplary embodiment according to the present invention, zone line is arranged between viewing area and the non-display area, thus significant temperature difference between viewing area and the non-display area in the compensation burin-in process process.Therefore, in the burin-in process process, reduce or prevented panel breakage and degradation failure, and fully wear out, thereby stablized electricity and the optical characteristics of PDP.
And addressing electrode can be formed in zone line and the viewing area, thus misplacing of preventing from may to occur in the zone line.
Description of drawings
The feature with other above the present invention will become clearer by the detailed description to particular exemplary embodiment with reference to the accompanying drawings, in the accompanying drawings:
Fig. 1 is the floor map that can be used in the PDP that realizes one exemplary embodiment of the present invention;
Fig. 2 is the partial, exploded perspective view of the PDP of first one exemplary embodiment according to the present invention, illustrates the discharge cell in the viewing area;
Fig. 3 is the partial plan layout of first one exemplary embodiment according to the present invention, illustrates the discharge cell in viewing area and the zone line;
Fig. 4 is the partial plan layout of the PDP of second one exemplary embodiment according to the present invention, illustrates the discharge cell in viewing area and the zone line;
Fig. 5 is the partial plan layout of the PDP of the 3rd one exemplary embodiment according to the present invention, illustrates the discharge cell in viewing area and the zone line;
Fig. 6 is the partial plan layout of the PDP of the 4th one exemplary embodiment according to the present invention, illustrates the discharge cell in viewing area and the zone line;
The partial, exploded perspective view of Fig. 7 PDP of the 5th one exemplary embodiment according to the present invention illustrates the discharge cell in the viewing area; And
The partial plan layout of Fig. 8 PDP of the 5th one exemplary embodiment according to the present invention illustrates the discharge cell in viewing area and the zone line.
Embodiment
Below in conjunction with the more detailed description the present invention of relevant drawings, wherein shown particular exemplary embodiment of the present invention.
Fig. 1 is the floor map that can be used in the PDP that realizes one exemplary embodiment of the present invention.Here will describe first to the 5th one exemplary embodiment with reference to figure 1, and it will be appreciated by those skilled in the art that any one can be realized in first to the 5th the one exemplary embodiment in the PDP of Fig. 1, but be not limited thereto.
As shown in fig. 1, first substrate 2 (below will be called " metacoxal plate ") and second substrate 4 (below will be called " prebasal plate ") be almost parallel each other, is provided with preset distance or gap betwixt, and assembles the profile that constitutes PDP each other.On metacoxal plate 2 and prebasal plate 4, mark off viewing area 6, zone line 8 and non-display area 10 (for example shown in the dotted line).
Carry out actual demonstration in viewing area 6, the space between metacoxal plate 2 and prebasal plate 4 is divided into a plurality of discharge cells with the barrier rib.Fluorescence coating forms in discharge cell, and discharge gas injects in the unit.
Around viewing area 6, it has and the similar discharge cell of the discharge cell of viewing area 6 zone line 8 in the periphery, but and is not used in the demonstration purpose.The discharge cell that is arranged in the zone line 8 is used to finish burin-in process, in the burin-in process process, and the temperature difference between compensation viewing area 6 and the non-display area 10.
Around zone line 8, it is not used in the demonstration purpose to non-display area 10 in the periphery.Non-display area 10 comprises the virtual region with dummy unit, and with the electrode of PDP inside and the interconnective terminal area of terminal of PDP outside.
Fig. 2 is the partial, exploded perspective view of the PDP of first one exemplary embodiment according to the present invention, illustrate the discharge cell in the viewing area, Fig. 3 is the partial plan layout of the PDP of first one exemplary embodiment according to the present invention, illustrates the discharge cell in viewing area and the zone line.
As shown in Fig. 2 and Fig. 3, addressing electrode 12 is formed on metacoxal plate 2 and prebasal plate 4 facing surfaces, and (just, on the y direction of principal axis in Fig. 2 and Fig. 3) extends on first direction.Dielectric layer 14 is formed on the front surface of metacoxal plate 2, and covers addressing electrode 12.The at interval predetermined each other distance of addressing electrode 12 is extended simultaneously abreast.
Barrier rib 16 is formed on the dielectric layer 14 to separate a plurality of discharge cells 18 and 20.For example, barrier rib 16 is formed with on the direction that is parallel to addressing electrode 12 (just, on the y direction of principal axis in Fig. 2 and 3) the first barrier flank 16a that extends, with intersects with the first barrier flank 16a and roughly with the direction of its quadrature on (just, on the x direction of principal axis in Fig. 2 and 3) extend second hinder flank 16b.The barrier rib is not limited to said structure, but can be transformed into various form, such as forming the ribbon structure that only has at the upwardly extending barrier flank in the side that is parallel to addressing electrode.Barrier rib with this ribbon structure, and other any suitable barrier rib structures, also within the scope of the invention.
Must provide red in the discharge cell 18 in viewing area 6, green and blue fluorescence coating 22, however can optionally provide in the discharge cell 20 in zone line 8.
Show electrode 28 and 34 is formed on the surface of prebasal plate 4, its relative with metacoxal plate 2 and on the direction of intersecting with addressing electrode 12 (just, on the x direction of principal axis in Fig. 2 and Fig. 3) extend. Show electrode 28 and 34 comprises the show electrode 28 corresponding to the discharge cell 18 in the viewing area 6, and corresponding to the show electrode 34 of the discharge cell 20 in the zone line 8. Show electrode 28 and 34 is formed with scan electrode 24 and 30 and keep electrode 26 and 32. Scan electrode 24 and 30 and keep electrode 26 and 32 and provide respectively on the direction of intersecting with addressing electrode 12 (just, on the x direction of principal axis in Fig. 2 and 3) bus electrode 24b, 26b, 30b and the 32b of longitudinal extension, and projection electrode (" extension electrode ") 24a, the 30a, 26a and the 32a that extend to the center of discharge cell 18 and 20 from bus electrode 24b, 26b, 30b and 32b respectively.
Projection electrode 24a, 30a, 26a and 32a have the effect that produces plasma discharge in discharge cell 18 and 20, and they are formed by the transparent material such as indium tin oxide (ITO), to obtain the aperture ratio of expectation.Bus electrode 24b, 26b, 30b and 32b are used for compensating the high resistance of projection electrode 24a, 30a, 26a and 32a and forming conducting of expectation, and they can be formed by opaque metal material.
Dielectric layer 36 and MgO protective layer 38 sequentially are formed on the front surface of prebasal plate 4, cover show electrode 28 and 34 simultaneously.MgO protective layer 38 prevents dielectric layer 36 by the ionic bombardment that discharges in the plasma discharge process, and improves discharging efficiency by high secondary electron discharge coefficient.
The area of show electrodes 28 and corresponding discharge cell 18 is than being set at less than the area ratio of zone line 8 interior show electrodes 34 with corresponding discharge cell 20 in the viewing area 6. Discharge cell 18 and 20 and the area of show electrode 28 and 34 measure from the leading flank of panel.
As shown in Figure 3, the area that is arranged in the show electrode 34 in each discharge cell 20 of zone line 8 is set at the area less than the show electrode 28 in each discharge cell 18 that is arranged in viewing area 6.Being arranged in projection electrode 30a in each discharge cell 20 of zone line 8 and the area of 32a should be set at less than projection electrode 24a in each discharge cell 18 that is arranged in viewing area 6 and the area of 26a.So, the gap between projection electrode 24a and the 26a, and the gap between projection electrode 30a and the 32a all are identical for all discharge cells 20 in all discharge cells 18 in the viewing area 6 and the zone line 8.
On the longitudinal direction of bus electrode 24b in each discharge cell 18 in viewing area 6 and 26b (just, on the x direction of principal axis in Fig. 3) the projection electrode 24a that measures and the width of 26a represent with p1, when projection electrode 30a that measures on bus electrode 30b in zone line 8 in each discharge cell 20 and the longitudinal direction of 32b and the width of 32a are represented with p2, projection electrode 24a, 30a, 26a and the 32a p1＞p2 that satisfies condition.
Use said structure, when to scan electrode 24 and 30 and apply 20-50kHz, 200-350V, the duty ratio of keeping that electrode 26 and 32 replaces be that the waveform of 40-70% is when carrying out burin-in process, projection electrode 24a, 30a, 26a and 32a in viewing area 6 and the zone line 8 have same scale, and do not cause the significant difference of discharge initiation voltage.Therefore, discharge begins with stable form, and the area of the flow of discharging current and projection electrode 24a, 30a, 26a and 32a is proportional, thereby the discharging current of zone line 8 is less than the discharging current of viewing area 6.
Thereby when the temperature of viewing area 6 in the burin-in process process is T1, the temperature of zone line 8 is the temperature of T2 and non-display area 10 when being T3, the T1＞T2 that satisfies condition＞T3.Therefore, when comparing with the traditional PD P that does not have zone line 8, reduced the temperature difference between viewing area 6 and the non-display area 10 and/or make viewing area 6 and zone line 8 between temperature transition milder.Therefore, use the PDP of one exemplary embodiment, can reduce the significant temperature difference between viewing area 6 and the non-display area 10 and/or make it milder, therefore, can reduce or prevent panel breakage and degradation failure according to the present invention.
Fig. 4 is the partial plan layout of the PDP of second one exemplary embodiment according to the present invention, illustrates the discharge cell in viewing area and the zone line.
As shown in Figure 4, in zone line show electrode 34 and 34 ' with the area of corresponding discharge cell 20 than being set at less than the area ratio of discharge cell 18 in the viewing area 6 with corresponding show electrode 28.And in zone line 8, the area of the show electrode 34 ' that contiguous non-display area 10 is arranged is set at the area of the show electrode of arranging less than contiguous viewing area 6 34.
For this purpose, be arranged in the area formation of the interior discharge cell 20 of zone line with homogeneous, projection electrode (" extension electrode ") 24a between viewing area 6 and the zone line 8 and that zone line is interior and the area of 26a, 30a and 32a, 30a ' and 32a ' there are differences.
In this embodiment, for the area that makes projection electrode 24a, 26a, 30a, 32a, 30a ' and 32a ' differs from one another, the width of projection electrode 24a, 26a, 30a, 32a, 30a ' and 32a ' can differ from one another.The width of projection electrode 24a, 26a, 30a, 32a, 30a ' and 32a ' is to measure at (just, on the x direction of principal axis in Fig. 4) on the direction that is parallel to bus electrode 24b, 26b, 30b, 32b, 30b ' and 32b ' extension.Except that the width that makes projection electrode 24a, 26a, 30a, 32a, 30a ' and 32a ' differs from one another or alternatively, can use various technology so that the area of projection electrode 24a, 26a, 30a, 32a, 30a ' and 32a ' differs from one another, this also within the scope of the invention.
In second one exemplary embodiment, corresponding to projection electrode 24a, 26a, 30a, 32a, 30a ' and the 32a ' of corresponding discharge cell 18 and the 20 t1＞t2＞t3 that satisfies condition, wherein t1 represents corresponding to the projection electrode 24a of the discharge cell 18 in the viewing area 6 and the width of 26a, t2 represents that corresponding to the projection electrode 30a of the discharge cell 20 in the zone line 8 of contiguous viewing area 6 and the width of 32a, t3 represents corresponding to the projection electrode 30a ' of the discharge cell 20 in the zone line 8 of contiguous non-display area 10 and the width of 32a '.
For ease of explanation, in drawing and description, only the discharge cell in the middle zone is carried out the part graphic extension, but can in zone line, form more discharge cell.So, can little by little reduce the another location from the position of the zone line of contiguous viewing area to the zone line of contiguous non-display area corresponding to the width of the projection electrode of discharge cell.
Therefore, the area of projection electrode little by little reduces from projection electrode 24a and the projection electrode 30a ' and the 32a ' of 26a in the zone line 8 of contiguous non-display area 10 in the viewing area 6.Because the flow of discharging current and the area of projection electrode 24a, 26a, 30a, 32a, 30a ' and 32a ' are proportional, so 6 positions to the zone line 8 that closes on non-display area 10 little by little reduce from the viewing area at the interior mobile electric current of projection electrode 24a, 26a, 30a, 32a, 30a ' and 32a '.
Thereby in the zone line 8 in the burin-in process process, temperature little by little reduces to the position of contiguous non-display area 10 from the position of contiguous viewing area 6.Therefore, between viewing area 6 and non-display area 10, there are not any significant temperature difference and/or rapid temperature gradient, and can effectively prevent degradation failure and panel breakage.
Fig. 5 is the partial plan layout of the PDP of the 3rd one exemplary embodiment according to the present invention, illustrates its viewing area and zone line.With the barrier rib 16 (16a among Fig. 2 to Fig. 4,16b) differently be, barrier rib 16 as shown in Figure 5 ' (16a ', 16b ') not isolated each other with equidistant from distance, but between viewing area and zone line, and in zone line, open with different intervals between the diverse location.
In this embodiment, show electrode 44 and 50 comprises the show electrode 44 corresponding to the discharge cell 52 in the viewing area 6, and corresponding to the show electrode 50 of the discharge cell 54 (just, discharge cell 54a, 54b, 54c, 54d, 54e, 54f, 54g, 54h) in the zone line 8. Show electrode 44 and 50 comprises scan electrode 40 and 46 and keep electrode 42 and 48 respectively.Scan electrode 40 and 46 and keep electrode 42 and 48 and comprise bus electrode 40b, 46b, 42b and the 48b that vertically is formed on the direction of intersecting respectively, and projection electrode (" extension electrode ") 40a, the 46a, 42a and the 48a that extend to the center of discharge cell 52 and 54 from bus electrode 40b, 46b, 42b and 48b respectively with addressing electrode 12.
Projection electrode 40a, 42a, 46a and 48a have the effect that produces plasma discharge in discharge cell 52 and 54, and they are formed by the transparent material such as indium tin oxide (ITO), to obtain the aperture ratio of expectation.Bus electrode 40b, 42b, 46b and 48b compensation projection electrode 40a, 42a, thus the high resistance of 46a and 48a forms the electric connection of expectation, and they are formed by the opaque metal material.
In this embodiment, have area identical corresponding to the show electrode 50 of each discharge cells 54 in the zone line 8, the discharge cells 54 in the zone line 8 have the area greater than discharge cells 52 in the viewing area 6.Even discharge cell 54 also has different areas in zone line 8, the part that feasible contiguous non-display area 10 is wherein arranged (just, discharge cell 54f, 54g, 54h) area with the part (just, discharge cell 54a, 54b, 54c, 54d, 54e) of arranging greater than contiguous viewing area 6 wherein.
For ease of explanation, discharge cell 52 and 54 has width and/or the length that differs from one another.Discharge cell 52 and 54 width are measured at (just, on the x of Fig. 5 direction of principal axis) on the longitudinal direction of show electrode 44 and 50.Discharge cell 52 and 54 length on the direction of intersecting with show electrode 44 and 50 (just, on the y of Fig. 5 direction of principal axis) are measured.
In this embodiment, zone line 8 is included on the direction that is parallel to show electrode (just, on the x of Fig. 5 direction of principal axis) be adjacent to first dynatron zone 8a of viewing area 6, and the regional 8b of second dynatron that on the direction of intersecting with show electrode, is adjacent to viewing area 6.
Viewing area 6 and first dynatron zone 8a are set at the w3＞w2 that satisfies condition＞w1, wherein w1 is the width of the discharge cell 52 in the viewing area 6, w2 is discharge cell 54c, the 54d of the contiguous viewing area 6 in the 8a of first dynatron zone, the width of 54e, and w3 is discharge cell 54f, the 54g of the contiguous non-display area 10 in the 8b of second dynatron zone, the width of 54h.
And, in this embodiment, discharge cell is set at and satisfies condition 13＞12＞11, wherein 11 is the length of the discharge cell 52 in the viewing area 6,12 is the length of the discharge cell 54a of the contiguous viewing area 6 in the 8b of second dynatron zone, and 13 is the length of the discharge cell 54b of the contiguous non-display area 10 in the 8b of second dynatron zone.
For ease of explanation, in drawing and description, only the discharge cell in the middle zone is carried out the part graphic extension, but can in zone line, form more discharge cell.Even so, the area of the discharge cell 54 in the zone line 8 can little by little increase to the discharge cell 54 that is positioned at contiguous non-display area 10 from the discharge cell 54 that is positioned at contiguous viewing area 6.
In this embodiment, in the zone line 8 area of discharge cells 54 from the position of contiguous display unit 6 to the position increase gradually of contiguous non-display area 10, thereby rapid variations in temperature between compensation viewing area 6 and the non-display area 10.Therefore, can prevent the significant temperature difference that may exist between viewing area 6 and the non-display area 10 and/or rapid temperature gradient.
Fig. 6 is the partial plan layout of the PDP of the 4th one exemplary embodiment according to the present invention, illustrates its viewing area and zone line.
Use this PDP, show electrode 28 and 34 in zone line 8 " with the area of corresponding discharge cell 18 and 20 than being set at less than 6 area ratio in the viewing area.Show electrode 34 " comprises scan electrode and keeps electrode 30 " and 32 ".Each scan electrode 30 " comprises bus electrode 30b " and projection electrode 30a ", each is kept electrode 32 and " comprises bus electrode 32b " and projection electrode 32a ".Zone line 8 is included in the regional 8b of second dynatron that (just, on the x of Fig. 6 direction of principal axis) on the direction that is parallel to show electrode is adjacent to first dynatron zone 8a of viewing area 6 and is adjacent to viewing area 6 on the direction of intersecting with show electrode.
As shown in Figure 6, addressing electrode 12 is formed in viewing area 6, first dynatron zone 8a and second dynatron zone 8b.Be formed on first and second dynatrons zones 8a and addressing electrode 12 in the 8b and make the flow of the electric current in first and second dynatrons zone 8a and 8b different, thereby improved the discharge initiation voltage of the discharge cell 20 in dynatron zone 8a and the 8b.In other words, in this embodiment, addressing electrode 12 is formed in the zone line 8 to prevent contingent misplacing in the zone line 8.
Fig. 7 is the partial, exploded perspective view of the PDP of the 5th one exemplary embodiment according to the present invention, and the discharge cell in the viewing area has been described; And Fig. 8 is the partial plan layout of this PDP, illustrates the discharge cell in viewing area and the zone line.
In this embodiment, discharge cell 60 and 62 and non-discharge area 64 be formed on together between metacoxal plate 2 and the prebasal plate 4, thereby constituted PDP.Discharge cell 60 and 62 is used for producing the emission of gas discharge and light in inside, and non-discharge area 64 is meant gas discharge or photoemissive zone or space do not take place.
As shown in Fig. 7 and Fig. 8, each discharge cell 60 and 62 is formed with the optimised shape of the dispersal pattern of having considered to keep the discharge of discharge process ionic medium.This discharge cell 60 and 62 optimize structure and make the part of keeping discharge that is used to produce of each discharge cell 60 and 62 minimize, and strengthened brightness.Especially, this structure is meant such structure, the width that wherein is arranged in each discharge cell 60 of (just, on the y of Fig. 7 and Fig. 8 direction of principal axis) on addressing electrode 12 longitudinal directions and 62 two ends is along with they narrow down away from each center of discharge cell 60 and 62.
In other words, as shown in Figure 7, the width W c at discharge cell 60 and 62 centers is greater than the width W e of discharge cell end, and the width W e of discharge cell 60 and 62 ends is along with it becomes narrow away from the center.Thereby discharge cell 60 and 62 two ends all are configured as trapezoidal, and the whole planar-formed of each discharge cell is octagon.
Barrier rib 66 is formed with the first barrier flank 66a that is parallel to addressing electrode 12 extensions and is crossed as second of predetermined angle with the first barrier flank 66a and hinders flank 66b.The second barrier flank 66b is arranged between the discharge cell on the addressing electrode direction, roughly becomes the capital X shape.
When drawing imaginary level and vertical axis H and V in the heart in each discharge cell 60 and 62, non-display area 64 is arranged in by in level and vertical axis H and the V region surrounded.Non-display area 64 absorbs from contiguous discharge cell 60 and 62 heats that produce, to improve the heat dissipation characteristics of this PDP.
In viewing area 6, show electrode 68 and 70 comprises bus electrode 68b and projection electrode 68a respectively, and bus electrode 70b and projection electrode 70a.In zone line 8, show electrode 72 and 74 comprises bus electrode 72b and projection electrode 72a respectively, and bus electrode 74b and projection electrode 74a.In this embodiment, the width stenosis of the rear end of the projection electrode that links to each other with bus electrode 68b, 70b, 72b and 74b (" extension electrode ") 68a, 70a, 72a and 74a is narrow, and its width is corresponding to the shape of discharge cell 60 and 62.And, paired projection electrode 68a and 70a, and 72a and 74a have groove 76 respect to one another in its front edge center.Therefore, the every couple of projection electrode 68a and 70a, and 72a and 74a have the short air gap G1 between each discharge cell 60 and 62 peripheries, and the long clearance G 2 of each discharge cell 60 and 62 centers.
Groove 76 is used for keeping discharge process, by starting and diffusion from plasma discharge corresponding to the short air gap G1 of discharge cell 60 and 62 peripheries, and produce and diffusion from plasma discharge corresponding to the long clearance G 2 at discharge cell 60 and 62 centers, come the stronger initial discharge of wide region in induced discharge unit 60 and 62.Thereby this PDP with groove 76 has improved discharging efficiency, and has reduced driving voltage.
When projection electrode 68a, 70a, 72a and 74a formed above-mentioned shape, the area that is arranged in projection electrode 72a in each discharge cells 62 of zone line 8 and 74a was set at less than being arranged in projection electrode 68a in 6 each discharge cells 60 of viewing area and the area of 70a.
When the projection electrode 68a that links to each other with 70b with bus electrode 68b in 6 each discharge cells 60 of viewing area and the width of 70a rear end are represented with p3, when the projection electrode 72a that links to each other with 74b with bus electrode 72b in zone line 8 each discharge cells 62 and the width of 74a rear end are represented with p4, projection electrode 68a, 70a, 72a and the 74a p3＞p4 that satisfies condition.
Can select or other, paired projection electrode 68a in the viewing area 6 in each discharge cell 60 and the interface width of 70a are (just, the width of front edge respect to one another) represents with p5, paired projection electrode 72a in each discharge cells 62 of zone line 8 and the interface width of 74a represent with p6, projection electrode 68a, 70a, 72a and the 74a p5＞p6 that satisfies condition.
Although described particular exemplary embodiment of the present invention above in detail, but should recognize clearly that a lot of distortion and the modification of the basic invention theory of instruction are obvious to those skilled in the art here, they still drop in the spirit and scope of the present invention that limited by claim and its equivalent.

Claims (23)

1, a kind of Plasmia indicating panel comprises:
First substrate respect to one another and second substrate, its have the viewing area at described substrate center place, the non-display area that forms around described viewing area periphery and be arranged in described viewing area and described non-display area between zone line;
Addressing electrode, it is formed on described first substrate and extends parallel to each other;
The barrier rib, it is arranged in described viewing area and described zone line, and described barrier rib limits discharge cell between described first substrate and second substrate;
Fluorescence coating, it is formed in the discharge cell in the described viewing area; And
Show electrode, it is formed on described second substrate on the direction of intersecting with described addressing electrode,
Wherein, the show electrode in described zone line compares less than the area ratio of the show electrode in described viewing area with corresponding discharge cell with the area of corresponding discharge cell.
2, according to the Plasmia indicating panel of claim 1, wherein in described zone line corresponding to the area of the show electrode of each discharge cell less than in described viewing area corresponding to the area of the show electrode of each discharge cell.
3, according to the Plasmia indicating panel of claim 2, wherein said show electrode comprises the bus electrode that forms near each described discharge cell outer periphery in pairs, and extend and projection electrode respect to one another to each described discharge cell center from described bus electrode in pairs, and corresponding to the area of the projection electrode of each discharge cell in the described zone line less than area corresponding to the projection electrode of each discharge cell in the described viewing area.
4, according to the Plasmia indicating panel of claim 3, the width of in described zone line, measuring at the width of measuring on the longitudinal direction of described bus electrode wherein less than the longitudinal direction of projection electrode in described viewing area at described bus electrode corresponding to each discharge cell corresponding to the projection electrode of each discharge cell.
5, according to the Plasmia indicating panel of claim 3, wherein said discharge cell and described projection electrode have the long limit of extending on the longitudinal direction of described addressing electrode, and the minor face that extends on the longitudinal direction of described bus electrode.
6, according to the Plasmia indicating panel of claim 3, wherein projection electrode reduces on width towards bus electrode gradually with the rear end that described bus electrode links to each other.
7, according to the Plasmia indicating panel of claim 6, wherein in described zone line corresponding to the rear end of each described discharge cell and the projection electrode that links to each other with described bus electrode on the width less than in described viewing area corresponding to the rear end of the projection electrode of each discharge cell.
8, according to the Plasmia indicating panel of claim 2, wherein form groove in the front edge center of paired projection electrode respect to one another, and in described zone line corresponding to the area of the projection electrode of each discharge cell less than in described viewing area corresponding to the area of the projection electrode of each discharge cell.
9, Plasmia indicating panel according to Claim 8, wherein in described zone line corresponding to the width of the front edge of the paired projection electrode of each discharge cell less than in described viewing area corresponding to the width of the front edge of the paired projection electrode of each discharge cell.
10, according to the Plasmia indicating panel of claim 1, wherein near the described show electrode in the zone line of described non-display area and corresponding discharge cell area than less than near the described show electrode in the zone line of described viewing area and corresponding discharge cell the area ratio.
11, according to the Plasmia indicating panel of claim 10, wherein said show electrode comprises the bus electrode near each described discharge cell periphery longitudinal extension on the direction of intersecting with addressing electrode, and from the projection electrode of described bus electrode to each described discharge cell center extension, the area of the projection electrode in the zone line of close described non-display area is less than the area near the projection electrode in the zone line of described viewing area.
12, according to the Plasmia indicating panel of claim 11, the area of the projection electrode in the wherein said zone line is from reducing gradually to the second area near the projection electrode of described non-display area near first area of the projection electrode of described viewing area.
13, according to the Plasmia indicating panel of claim 12, wherein the width that is parallel to the projection electrode of measuring on the direction of described bus electrode at described zone line is from reducing gradually to second width near the projection electrode of described non-display area near first width of the projection electrode of described viewing area.
14, according to the Plasmia indicating panel of claim 10, the discharge cell in the wherein said zone line has essentially identical area each other.
15, according to the Plasmia indicating panel of claim 1, the area of discharge cell is greater than the area of discharge cell in the described viewing area in the wherein said zone line.
16, according to the Plasmia indicating panel of claim 15, wherein the area of the discharge cell in the zone line of close described non-display area is greater than the area near the discharge cell in the zone line of described viewing area.
17, according to the Plasmia indicating panel of claim 16, the area of the discharge cell in the wherein said zone line is from increasing gradually to the second area near the discharge cell of described non-display area near first area of the discharge cell of described viewing area.
18, according to the Plasmia indicating panel of claim 15, wherein said zone line is included on the described show electrode direction the first dynatron zone of contiguous described viewing area, and the second dynatron zone that is close to described viewing area on the direction of intersecting with described show electrode.
19, according to the Plasmia indicating panel of claim 18, the width of the discharge cell in the first dynatron zone of wherein measuring on described show electrode direction is from increasing gradually to second width near the discharge cell of described non-display area near first width of the discharge cell of described viewing area.
20, according to the Plasmia indicating panel of claim 18, wherein the length of the discharge cell in the second dynatron zone of measuring on the direction of intersecting with described show electrode is from increasing gradually to second length near the discharge cell of described non-display area near first length of the discharge cell of described viewing area.
21, according to the Plasmia indicating panel of claim 15, wherein the show electrode corresponding to each discharge cell in the described zone line has essentially identical area each other.
22, according to the Plasmia indicating panel of claim 1, wherein said addressing electrode forms in described viewing area.
23, according to the Plasmia indicating panel of claim 1, wherein said addressing electrode forms in described viewing area and described zone line.
CNB2005100817634A 2004-04-21 2005-04-21 Plasma display panel Expired - Fee Related CN100449676C (en)

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US7936127B2 (en) 2006-05-30 2011-05-03 Lg Electronics Inc. Plasma display apparatus

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JP3625157B2 (en) * 1999-08-18 2005-03-02 パイオニア株式会社 Plasma display panel
CN1316536C (en) * 2001-11-15 2007-05-16 Lg电子株式会社 Plasma display panel
KR100471969B1 (en) * 2002-09-04 2005-03-10 삼성에스디아이 주식회사 Plasma display panel having dummy barrier rib

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7936127B2 (en) 2006-05-30 2011-05-03 Lg Electronics Inc. Plasma display apparatus
CN101083196B (en) * 2006-05-30 2012-09-26 Lg电子株式会社 Plasma display apparatus

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