CN1254842C - Plasma display panel with shared data electrode - Google Patents

Abstract

A plasma display panel comprises a plurality of first display units and a second display unit, wherein the first display units are composed of a plurality of maintaining electrodes, a plurality of scanning electrodes and a plurality of data electrodes. The sustain electrodes and the scan electrodes form at least a first electrode combination and a second electrode combination adjacent to each other, and each electrode combination is composed of a sustain electrode and a scan electrode respectively. The data electrodes are disposed in a direction substantially intersecting the scan electrodes and the sustain electrodes. The first display unit corresponds to the first single primary color and is controlled by the combination of the first data electrode and the first electrode. The second display unit corresponds to the second single primary color and is controlled by the combination of the first data electrode and the second electrode. The first display unit and the second display unit are adjacent and arranged in a staggered mode.

Description

Plasma display panel with common data electrodes

technical field

The present invention relates to a plasma display panel, and more particularly to a plasma display panel with a common data electrode.

Background technique

The plasma display panel (Plasma Display Panel, PDP) has multiple characteristics such as large size, wide viewing angle, high resolution, and full-color display capability, so that its display effect is far superior to that of the current cathode ray tube (Cathode ray tube). Ray Tube, CRT) display, so in recent years it has gradually attracted the attention of the public.

Please refer to FIG. 1 , which is a perspective view of a conventional plasma display panel. The plasma display panel is composed of a front substrate 102 and a rear substrate 108 . A plurality of sustaining electrodes (sustaining electrode) X and a plurality of scanning electrodes (scanning electrode) Y are alternately arranged in parallel on the front glass substrate 102, and before forming the sustaining electrodes X and scanning electrodes Y, they can be formed and defined A plurality of transparent electrodes (not shown in the figure), the transparent electrodes have different graphic definitions according to different designs, which will not be further described in this specification. The aforementioned sustain electrodes X and scan electrodes Y are covered by a dielectric layer 104 . The dielectric layer 104 is covered by a protection layer 106 made of MgO to protect the sustain electrodes X, the scan electrodes Y and the dielectric layer 104 . In addition, a plurality of addressing electrodes A are disposed in parallel on the rear substrate 108 and covered by the dielectric layer 116 . Wherein, the disposition direction of the address electrodes A intersects with the disposition directions of the sustain electrodes X and the scan electrodes Y. The ribs 112 are disposed on the rear substrate 108 parallel to the direction of the address electrodes A, and the phosphor layer 110 is coated between two adjacent ribs 112 .

The cavity between the front substrate 102 and the rear substrate 108 is a discharge space, which is filled with discharge gas mixed with neon and xenon. A sustain electrode X and a scan electrode Y on the front substrate 102 and a corresponding address electrode A on the rear substrate 108 define a display unit (discharge unit). In this way, the plurality of sustain electrodes X, scan electrodes Y and address electrodes A define a plurality of display units arranged in a matrix on the plasma display panel. By exciting the gas in the discharge space, the excited gas will emit ultraviolet light. The phosphor layer 110 emits visible light after absorbing ultraviolet light of a specific wavelength.

Please refer to FIG. 2 , which is a schematic diagram of the relationship between a plurality of display units and electrodes corresponding to the horizontal arrangement of the plasma display panel in FIG. 1 . By forming fluorescent layers of different colors between adjacent partition walls, display units of different colors can be obtained. As shown in Figure 2, the data electrode A1 is used to control the red display units R1 and R2, the data electrode A2 is used to control the green display units G1 and G2, and the data electrode A3 is used to control the blue display units B1 and B2. . The driving method of these display units is to, firstly, erase the display data of all the display units in an erase period. Afterwards, within an address period, the scanning electrodes Y1 and Y2 are sequentially scanned, and the display unit to be lit is selected by the address electrodes A1-A3. After that, in a sustain discharge period, by providing an AC voltage between the adjacent sustain electrode X1 and scan electrode Y1, and between the sustain electrode X2 and scan electrode Y2, the selected display unit will be will be continuously lit.

In addition to the horizontal arrangement shown in FIG. 2 , the display units can also be arranged in a triangular arrangement. Please refer to FIG. 3 , which is a schematic diagram of the relationship between a plurality of display units and electrodes in a traditional triangular arrangement. A plurality of display units in a triangular arrangement is achieved by using partition walls 302 in a honeycomb structure. Now take the green display unit G2 and the red display unit R2 which are adjacent to each other and arranged alternately as an example. The green display unit G2 is controlled by the data electrode A2 and the scan electrode Y1 , and the red display unit R3 is controlled by the data electrode A1 and the scan electrode Y1 . Therefore, when the scan electrode Y1 is scanned, the green display unit G2 and the red display unit R3 can be respectively selected through the scan electrodes A1 and A2 .

In the traditional method, since adjacent and staggered display units must be controlled by different data electrodes, a large number of data electrodes must be used to achieve the purpose of controlling the display units. Due to the extremely large number of data electrodes, the cost of the conventional plasma display panel increases. In addition, since the distance between each data electrode is relatively narrow, the complexity of the process is also increased accordingly.

Contents of the invention

In view of this, the object of the present invention is to provide a plasma display panel, which uses a common data electrode to control two adjacent and staggered display units. In this way, the number of data electrodes can be reduced to achieve the purpose of reducing costs.

According to the object of the present invention, a plasma display panel is provided, including a plurality of sustain electrodes, a plurality of scan electrodes, a plurality of data electrodes, a first display unit and a second display unit. The sustain electrodes and the scan electrodes at least form a first electrode combination and a second electrode combination adjacent to each other, and each electrode combination is composed of a sustain electrode and a scan electrode respectively. The arrangement direction of the data electrodes is substantially intersecting the scan electrodes and the sustain electrodes. The first display unit corresponds to the first single primary color and is controlled by the combination of the first data electrode and the first electrode. The second display unit corresponds to the second single primary color and is also controlled by the combination of the first data electrode and the second electrode. Wherein, the first display unit and the second display unit are adjacent and arranged in a staggered manner.

Description of drawings

FIG. 1 is a perspective view of a conventional plasma display panel.

FIG. 2 is a schematic diagram showing the relationship between a plurality of display units and electrodes corresponding to the horizontal arrangement of the plasma display panel in FIG. 1 .

FIG. 3 is a schematic diagram showing the relationship between a plurality of display units and electrodes in a traditional triangular arrangement.

FIG. 4 is a schematic diagram of a relationship between a plurality of display units arranged in a triangle and electrodes according to the first embodiment of the present invention.

FIG. 5 is a schematic diagram of a relationship between a plurality of display units arranged in a triangle and electrodes according to a second embodiment of the present invention.

FIG. 6 is a schematic diagram of a relationship between a plurality of display units arranged in a triangle and electrodes according to a third embodiment of the present invention.

FIG. 7 is a schematic diagram of a relationship between a plurality of display units arranged in a triangle and electrodes according to a fourth embodiment of the present invention.

FIG. 8 is a schematic diagram of a relationship between a plurality of display units and electrodes according to a fifth embodiment of the present invention.

FIG. 9 is a schematic diagram of a relationship between a plurality of display units arranged in a triangle and electrodes according to a sixth embodiment of the present invention.

FIG. 10 is a schematic diagram of a relationship between a plurality of display units arranged in a triangle and electrodes according to a seventh embodiment of the present invention.

Label description

X: Sustain electrode

Y: scanning electrode

A: Data electrode

R: Red display unit

G: Green display unit

B: blue display unit

102: Front substrate

104, 116: dielectric layer

106: protective layer

108: rear substrate

110: fluorescent layer

112, 302, 402, 802: partition wall

502, 504, 506, 602, 604, 606, 608, 610: straight line segment

704: Crest

706: Valley Department

1002G, 1002R: Rectangular bump

1004G, 1004R: Annular bump

1006G, 1006R: semicircular bump

Detailed ways

In order to make the above-mentioned purposes, features, and advantages of the present invention more obvious and understandable, a preferred embodiment is specifically cited below, together with the accompanying drawings, described in detail as follows:

The spirit of the present invention is to use one data electrode to control two adjacent and staggered display units, so as to reduce the number of data electrodes and reduce the cost.

first embodiment

Please refer to FIG. 4 , which is a schematic diagram of a relationship between a plurality of display units arranged in a triangle and each electrode according to a first embodiment of the present invention. The plasma display panel of the present invention includes a plurality of sustain electrodes X, a plurality of scan electrodes Y, a plurality of data electrodes A, and a plurality of display units. The sustain electrodes X1-X2, the scan electrodes Y1, the data electrodes A1-A2, the red display units R1-R3, the green display units G1-G3, and the blue display units B1 and B3 are taken as examples for illustration. The sustain electrode X1 and the scan electrode Y1 form a first electrode combination (X1+Y1), and the sustain electrode X2 and the scan electrode Y1 form a second electrode combination (X2+Y1). The arrangement direction of data electrodes A1 to A2 is substantially perpendicular to scan electrodes X1 to X2 and sustain electrode Y1 . Each display unit is separated by a partition wall, which may be a honeycomb-shaped partition wall 402 . The display units are arranged in a honeycomb shape.

For example, the green display unit G2 is controlled by the data electrode A1 and the first electrode combination (X1+Y1), and the red display unit R2 is controlled by the data electrode A2 and the first electrode combination (X1+Y1). The red display unit R3 is controlled by the data electrode A1 and the second electrode combination (X2+Y1), and the blue display unit B3 is controlled by the data electrode A2 and the second electrode combination (X2+Y1).

Wherein, the display units in each column are arranged in a staggered manner with the display units in an adjacent column. That is to say, the display units in two adjacent columns corresponding to the same data electrode are not arranged on the same straight line, but have relative displacement along the horizontal direction. For example, the green display unit G2 and the red display unit R3 corresponding to the data electrode A1 are arranged adjacently and alternately, and there is a relative displacement between them along the horizontal direction. In FIG. 4 , it is illustrated by taking the green display unit G2 disposed at a position corresponding to the middle of the red display unit R3 and the blue display unit B3 as an example.

The present invention achieves the purpose of reducing the number of data electrodes by arranging the data electrodes at the positions that can pass through the adjacent and staggered display units, so as to use one data electrode to simultaneously control the adjacent and staggered display units. In the first embodiment of FIG. 4, the data electrodes are linear and perpendicular to the scan and sustain electrodes.

However, since two adjacent and staggered display units are controlled by the same data electrode and the same scan electrode, they must be driven twice to light up respectively. Taking the green display unit G2 and the red display unit R3 as examples, the driving method of the plasma display panel of the present invention is described in detail as follows. Firstly, in a clearing section, the display data of all display units are cleared. Afterwards, in the first addressing segment, the scan electrode Y is scanned sequentially, and the display unit to be lit is selected by the address electrode A. For example, when the scan electrode Y1 is enabled, the green display unit G2 and the red display unit R3 are simultaneously selected by the address electrode A1. Afterwards, in the first sustain discharge section, one of the selected two display units is continuously turned on. For example, by providing an AC voltage to the first electrode combination (X1+Y1), only the selected green display unit G2 is continuously lit. Next, in the second addressing segment, scan the scan electrode Y in the same sequence, and use the address electrode A to select the display unit to be turned on. For example, when the scan electrode Y1 is enabled, the green display unit G2 and the red display unit R3 are selected again through the address electrode A1. Afterwards, in the second sustain discharge section, one of the two selected display units is continuously turned on. For example, by providing an AC voltage to the second electrode combination (X2+Y1), the selected red display unit R3 is continuously illuminated. In this way, the purpose of lighting up two adjacent and staggered display units can be respectively accomplished.

Due to the human eye's ability to distinguish colors, it can be determined by the cumulative time of color luminescence. Therefore, although in the first embodiment, the green display unit G2 and the red display unit R3 are continuously lit at different time points, due to the effect of visual accumulation, this driving method can still achieve the same effect as the conventional display for picture display. The same display effect as a plasma display panel.

The data electrodes of the present invention are not limited to the straight shape shown in FIG. 4 , and can also be curved. There are many ways to bend the data electrodes, which will be disclosed in FIG. 5 to FIG. 7 respectively.

second embodiment

Please refer to FIG. 5 , which is a schematic diagram of a relationship between a plurality of display units arranged in a triangle and electrodes according to a second embodiment of the present invention. In the second embodiment, the data electrodes are composed of straight line segments arranged along two different directions, for example, the straight line segments 502 and 506 along the first direction, and the straight line segment 504 along the second direction. Wherein, the straight line segments 502, 504 and 506 are sequentially connected. The intersection of the straight line segment 502 and the straight line segment 504 is located in the green display unit G2, and the intersection of the straight line segment 504 and the straight line segment 506 is located in the red display unit R3.

third embodiment

Please refer to FIG. 6 , which is a schematic diagram of a relationship between a plurality of display units arranged in a triangle and electrodes according to a third embodiment of the present invention. In the third embodiment, the data electrodes are composed of straight line segments arranged along three different directions, for example, straight line segments 602 and 610 along the first direction, straight line segments 604 and 608 along the second direction, and a straight line segment 606 along the third direction. Wherein, the straight line segments 602, 604, 606, 608 and 610 are sequentially connected. The intersection of the straight line segment 602 and the straight line segment 604 is located in the green display unit G2, and the intersection of the straight line segment 604 and the straight line segment 606 is also located in the green display unit G2. The intersection of the straight line segment 606 and the straight line segment 608 is located in the red display unit R3, and the intersection of the straight line segment 608 and the straight line segment 610 is also located in the red display unit R3.

Fourth embodiment

Please refer to FIG. 7 , which is a schematic diagram of a relationship between a plurality of display units arranged in a triangle and electrodes according to a fourth embodiment of the present invention. In the fourth embodiment, the data electrodes are corrugated. The peak portion 704 and the valley portion 706 are, for example, located inside the green display unit G2 and the red display unit R3 respectively.

Wherein, the driving methods used in the second embodiment to the fourth embodiment are the same as those in the first embodiment, and will not be repeated here.

fifth embodiment

Please refer to FIG. 8 , which is a schematic diagram of a relationship between a plurality of display units and electrodes according to a fifth embodiment of the present invention. The partition walls used in the plasma display panel of the present invention are not limited to the honeycomb-shaped partition walls shown in FIG. Or partition walls of other shapes, the purpose of the present invention is achieved in the manner that the display units of two adjacent columns are arranged in a staggered manner. As shown in FIG. 8 , the partition wall of the present invention can also be a staggered lattice partition wall 802 . In this embodiment, the shape of each display unit is approximately rectangular, and the display units in two adjacent columns are arranged in a staggered manner.

Sixth embodiment

Please refer to FIG. 9 , which is a schematic diagram of a relationship between a plurality of display units arranged in a triangle and electrodes according to a sixth embodiment of the present invention. In the first embodiment of FIG. 4 , the scan electrode Y1 is shared by the green display unit G2 and the red display unit R3 . According to the spirit of the present invention, display units in different columns can also be controlled by using different scan electrodes. As shown in FIG. 9, the green display unit G2 and the red display unit R3 can be controlled by the scan electrodes Y1 and Y2 respectively, wherein the sustain electrode Y1 and the scan electrode Y1 are combined into a first electrode combination (X1+Y1), and the sustain electrode Y1 and the scan electrode Y1 are combined into a first electrode combination (X1+Y1), and the sustain The electrode X2 and the scan electrode Y2 are combined into a second electrode combination (X2+Y2). The driving method of this embodiment is to scan the electrodes Y1 and Y2 sequentially. And by means of the data electrode A2, when the scan electrodes Y1 and Y2 are respectively enabled, the green display unit G2 and the red display unit R3 are selected. Then, an AC voltage is respectively provided to the first electrode combination ( X1 + Y1 ) and the second electrode combination ( X2 + Y2 ), so as to continuously light up the selected green display unit G2 and red display unit R3 .

Seventh embodiment

Please refer to FIGS. 10A-10C , which are schematic diagrams illustrating the relationship between a plurality of display units arranged in a triangle and electrodes according to a seventh embodiment of the present invention. In the seventh embodiment, the data electrodes of the present invention can be not only the linear data electrodes shown in FIG. display unit. Taking the data electrode A1 as an example, it has a plurality of rectangular bumps, such as rectangular bumps 1002G and 1002R. The rectangular bumps 1002G and 1002R extend to the centers of the green display unit G2 and the red display unit R3 respectively. In this way, the driving ability of the data electrodes to the display unit can be enhanced.

In addition, the bump can also be in other shapes, such as ring or semicircle, as shown in FIG. 10B and FIG. 10C . In FIG. 10B , the annular bumps 1004G and 1004R extend to the center of the green display unit G2 and the red display unit R3 respectively. In FIG. 10C , the semicircular bumps 1006G and 1006R extend to the center of the green display unit G2 and the red display unit R3 respectively.

In the plasma display panel disclosed in the above embodiments of the present invention, two adjacent and staggered display units are controlled by using a common data electrode. In this way, the number of data electrodes can be reduced to achieve the purpose of reducing costs.

In summary, although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person in the industry may make various modifications and changes without departing from the spirit and scope of the present invention. Modification, therefore, the scope of protection of the present invention shall prevail as defined by the appended claims.

Claims (21)

1. A plasma display panel, comprising: A plurality of sustain electrodes and a plurality of scan electrodes, the sustain electrodes and the scan electrodes form at least a first electrode combination and a second electrode combination adjacent to each other, and each electrode combination consists of a sustain electrode and a scan electrode composed of; The data electrodes are arranged in a direction to intersect the scan electrodes and the sustain electrodes; The first display unit corresponds to the first single primary color and is controlled by the combination of the data electrode and the first electrode by driving twice; and The second display unit corresponds to the second single primary color, and is controlled by the combination of the data electrode and the second electrode by driving twice; Wherein, the first display unit and the second display unit are adjacent and arranged in a staggered manner. 2. The plasma display panel as claimed in claim 1, wherein the first electrode combination is composed of a first sustain electrode and a first scan electrode, and the second electrode combination is composed of a second sustain electrode and the first scan electrode. composed of scanning electrodes. 3. The plasma display panel as claimed in claim 1, wherein the first electrode combination is composed of a first sustain electrode and a first scan electrode, and the second electrode combination is composed of a second sustain electrode and a second scan electrode composed of electrodes. 4. The plasma display panel as claimed in claim 1, wherein the data electrodes are linear. 5. The plasma display panel as claimed in claim 1, wherein the data electrode is curved. 6. The plasma display panel as claimed in claim 5, wherein the data electrode has at least a first straight line segment, a second straight line segment and a third straight line segment connected in sequence, the first straight line segment and the second straight line segment The intersection of the segments is located in the first display unit, and the intersection of the second straight line segment and the third straight line segment is located in the second display unit. 7. The plasma display panel as claimed in claim 5, wherein the data electrodes are corrugated. 8. The plasma display panel as claimed in claim 5, wherein the data electrode has at least a first straight segment, a second straight segment, a third straight segment, a fourth straight segment and a fifth straight segment connected in sequence, The intersection of the first straight line segment and the second straight line segment is located in the first display unit, the intersection of the second straight line segment and the third straight line segment is located in the first display unit, the third straight line The intersection of the segment and the fourth straight line segment is located in the second display unit, and the intersection of the fourth straight line segment and the fifth straight line segment is located in the second display unit. 9. The plasma display panel as claimed in claim 1, wherein the first display unit and the second display unit are separated by a partition wall. 10. The plasma display panel as claimed in claim 9, wherein the partition wall is a honeycomb partition wall. 11. The plasma display panel as claimed in claim 9, wherein the partition wall is a staggered lattice partition wall. 12. The plasma display panel as claimed in claim 1, wherein the data electrode has a first bump and a second bump, and the first bump and the second bump are respectively disposed corresponding to the first bump. A display unit and the second display unit. 13. The plasma display panel as claimed in claim 12, wherein the first bump and the second bump are rectangular, circular, or semicircular. 14. A plasma display panel, having a plurality of display units, the display units are arranged in a triangle, and the display units have a first display unit and a second display unit, and the first display unit corresponds to the first display unit For a single primary color, the second display unit is corresponding to the second single primary color, and the first display unit and the second display unit are adjacent and staggered, and the plasma display panel includes: a first sustain electrode and a second sustain electrode; A scan electrode is disposed among the first sustain electrode and the second sustain electrode, and is parallel to the first sustain electrode and the second sustain electrode, respectively; and a data electrode arranged in a direction that intersects the scan electrode and the sustain electrodes; Wherein, the first display unit is controlled by the first sustain electrode, the scan electrode and the data electrode by driving twice, and the second display unit is controlled by the scan electrode, the scan electrode and the data electrode by driving twice. The second sustain electrode is controlled by the data electrode. 15. The plasma display panel as claimed in claim 14, wherein the data electrodes are linear. 16. The plasma display panel as claimed in claim 14, wherein the data electrodes are curved. 17. The plasma display panel as claimed in claim 16, wherein the data electrode has at least a first straight line segment, a second straight line segment and a third straight line segment connected in sequence, the first straight line segment and the second straight line segment The intersection of the segments is located in the first display unit, and the intersection of the second straight line segment and the third straight line segment is located in the second display unit. 18. The plasma display panel as claimed in claim 16, wherein the data electrodes are corrugated. 19. The plasma display panel as claimed in claim 16, wherein the data electrode has at least a first straight segment, a second straight segment, a third straight segment, a fourth straight segment and a fifth straight segment connected in sequence, The intersection of the first straight line segment and the second straight line segment is located in the first display unit, the intersection of the second straight line segment and the third straight line segment is located in the first display unit, the third straight line The intersection of the segment and the fourth straight line segment is located in the second display unit, and the intersection of the fourth straight line segment and the fifth straight line segment is located in the second display unit. 20. The plasma display panel as claimed in claim 14, wherein the data electrode has a first bump and a second bump, and the first bump and the second bump are respectively disposed corresponding to the first bump. A display unit and the second display unit. 21. The plasma display panel as claimed in claim 20, wherein the first bump and the second bump are rectangular, circular, or semicircular.

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