JP3421377B2 - Plasma display panel and driving method thereof - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel and a driving method thereof, and more particularly, to display independent information on a plurality of screens in the same panel by using a limited viewing angle. And a driving method thereof.

[0002] For example, in a customer-facing window service, a customer and a business operator are in a position where they face each other with a display panel in between, and at the same time, information is obtained from the display panel, but different screens (of course, two screens are displayed). Is a related content), so that the work can be smoothly performed. Further, it can be applied to a video game and the like in which two persons sandwich a table and watch the same screen of a display device incorporated in the table.

[0003]

2. Description of the Related Art Conventionally, when two persons (herein, person A and person B) want to obtain different information in a customer service window, as shown in FIG.
Install a stand (see Fig. 8 (1)) or divide the screen into two and place a screen in the center of the display to block it (Fig. 8 (2)).
Method) was used. Further, even when a plasma display panel (PDP) is used for such an application, a similar method is adopted.

In a conventional plasma display panel, as shown in FIG. 9, in a discharge space of a discharge cell defined by a front glass substrate B1, a rear glass substrate B2, and a barrier D, a phosphor L is a surface of the front glass substrate B1. Is formed in. With this structure, 100 to 1 in the vertical direction of the display surface.
It has a wide viewing angle of 60 [°]. That is, the phosphor, which is the light emitting surface, can be seen from the wide field of view.

[0005]

As described above, when a plurality of persons want to obtain different information independently,
Several methods have been considered, but each has the following problems. That is, the method of arranging two displays has a problem in terms of space, and there is a problem in arrangement to make one display invisible to the other party. On the other hand, in the method of blocking one display by a partition, the partition must be heightened as the screen becomes larger.

The present invention solves the above problems.
An object of the present invention is to provide a plasma display panel capable of displaying independent information of a plurality of screens in the same panel by using a limited viewing angle, and a driving method thereof.

[0007]

In order to solve the above-mentioned problems, the plasma display panel of the first feature of the present invention, as shown in FIG. 1, uses the excited light emission of the phosphor L to display information. In the plasma display panel of n × m (n and m are arbitrary positive integers) to be performed, in each discharge cell, the discharge space of the phosphor L is sandwiched between two substrates B1 and B2, and the barrier D Separated by the phosphor L
Are formed only on a specific surface of the barrier D.

The plasma display panel of the first feature of the present invention is, as shown in FIG. 2, the discharge cell (Sij; j) of the i-th (i = 1 to n-1) row of the plasma display panel. = 1 to m) and the discharge cell (Si + 1j) of the i + 1th row or the jth (j = 1).
The discharge cells (Sij; i = 1 to n) of the columns (m-1) to (m-1) and the discharge cells (Sij + 1) of the j + 1th column have different barrier surfaces on which the phosphor (L) is formed.

The driving method for driving the plasma display panel according to the first aspect of the present invention is the driving method for driving the plasma display panel according to claim 1, wherein two independent display data are fetched. One of the display data is stored in the discharge cell (Sij; i = 1 to n-1, j = 1 to 1) of the i-th row of the plasma display panel.
m) or the discharge cell (Sij; i = 1 to 1) of the j-th column
n, j = 1 to m-1), the other display data is displayed in the discharge cell (Si + 1j) of the (i + 1) th row or the discharge cell (Sij + 1) of the (j + 1) th column of the plasma display panel, respectively. To do.

A second aspect of the present invention is a plasma display panel driving method according to the second aspect, wherein the two independent display data are 1 dot information. It has a plurality of signal levels corresponding to a color signal or a gradation signal, and switches the light-off state or the display and the display position according to the signal level.

A third aspect of the present invention is a method for driving a plasma display panel according to the second aspect, wherein the data constituting the two independent display data is 1 dot. The information is composed of 2-bit data representing at least four gradation signal levels of level 0, level 1, level 2, and level 3 corresponding to a color signal or a gradation signal, and each of the 2-bit data The bit value is the i-th value (i = 1 to
n-1) row discharge cells (Sij; j = 1 to m) or j-th (j = 1 to m-1) column discharge cells (Sij;
i = 1 to n) and the discharge cell (Si + 1) of the i + 1th row
j) or the discharge cell (Sij + 1) of the (j + 1) th column
, The display data of level 0 is turned off, and the display data of level 1 is assigned to the discharge cell (Sij) of the i-th row or the discharge cell of the j-th column (Sij) of the plasma display panel. Si
j) is turned on, and the display data composed of level 2 is turned on by turning on the discharge cell (Si + 1j) of the i + 1th row or the discharge cell (Sij + 1) of the j + 1th column of the plasma display panel. The display data includes the discharge cells (Sij) of the i-th row and the i + th + of the plasma display panel.
The discharge cell (Si + 1j) of the first row or the i + th
The discharge cell (Si + 1j) of the first row and the j + 1th cell
The discharge cell (Sij + 1) in the second column is turned on.

The plasma display panel of the second feature of the present invention is an n × m plasma (n and m are arbitrary positive integers) for displaying information by utilizing the excitation light emission of the phosphor (L). In a display panel, in each discharge cell, the discharge space of the phosphor (L) is sandwiched between two substrates (B1 and B2) and separated by a barrier (D), and the phosphor (L) is separated. Are formed only on a specific surface of the barrier (D), and are formed on the i-th surface of the plasma display panel.
The j-th row (j = 1 to m-) in the i-th row (i = 1 to n-1)
1) discharge cell (Sij) in column, j + th in i-th row
The discharge cell (Sij + 1) of the first column, the discharge cell (Si + 1j) of the jth column in the i + 1th row, and the i-th
+ 1th row and j + 1th column discharge cell (Si + 1
Each of (j + 1) has a different barrier surface on which the phosphor (L) is formed.

The driving method of the plasma display panel according to the fourth aspect of the present invention is the driving method of the plasma display panel according to claim 5, wherein four independent display data are taken in. , The first display data to the discharge cell (Sij; i = 1 to n-1, j = 1 to m-1) of the i-th row and the j-th column of the plasma display panel, 2 display data in the discharge cell (Sij + 1) in the j + 1th column in the i-th row, and the third display data in the discharge cell (Si + 1 in the j-th column in the i + 1th row).
j), the fourth display data is displayed in the discharge cell (Si + 1j + 1) in the (j + 1) th row and the (j + 1) th column, respectively.

The plasma display panel driving method according to the fifth aspect of the present invention is the plasma display panel driving method according to claim 6, wherein the four independent display data are 1 dot information. It has a plurality of signal levels corresponding to a color signal or a gradation signal, and switches the light-off state or the display and the display position according to the signal level.

[0015]

In the plasma display panel of the first feature of the present invention, as shown in FIG. 1, n × m (n and m are arbitrary positive integers) are used to display information by utilizing the excitation and emission of the phosphor L.
In each of the discharge cells, the discharge space of the phosphor L is sandwiched between two substrates B1 and B2 and separated by a barrier D.
The phosphor L is formed only on a specific surface of the barrier D.

Therefore, the visible light from the phosphor L is emitted only in the direction shown in FIG. 1, and the lighting can be confirmed only when viewed from that direction, and the barrier forming the phosphor L in each discharge cell is a barrier. By changing the surface of D, it becomes possible to display independent information of a plurality of screens in the same panel.

Further, in the plasma display panel of the first feature of the present invention, as shown in FIG. 2, an odd line and an even line of display lines along the horizontal direction of the panel,
Alternatively, the odd-numbered line and the even-numbered line of the display line along the vertical direction of the panel are configured by changing the side surface of the barrier D on which the phosphor L is arranged.

Thus, the light emitted from the phosphor L in the discharge cells of the odd lines can be recognized only from one direction, while the light emitted from the phosphor L in the discharge cells of the even lines can be recognized only from the opposite direction. This makes it possible to have two screens with different viewing angles in the same panel.

According to the plasma display panel driving method of the first aspect of the present invention, two independent display data are captured in the plasma display panel of the second aspect, for example, one display data is plasma display panel. The other display data is displayed on the even lines of the plasma display panel.

As a result, when two persons want to obtain different information independently, conventionally, the screen is divided and the display is blocked by the screen. According to the present invention, the screen is used. Therefore, it is possible to display two independent screens with different viewing angles in the same panel.

Further, in the plasma display panel driving method of the second and third features of the present invention, in the plasma display panel of the second feature, a plurality of steps corresponding to a color signal or a gradation signal as one dot information. Two independent display data having a signal level of 1 are fetched, and the light-off state or the display is switched and the display position is switched according to a plurality of signal levels.

For example, at least level 0, level 1,
When there are four signal levels of level 2 and level 3, the display data composed of level 0 is in the off state, the display data composed of level 1 is displayed in the odd lines, and the display data composed of level 2 is in the even lines. Display,
The display data of level 3 is displayed on both the odd and even lines.

Further, in the plasma display panel of the second feature of the present invention, as shown in FIG. 7, for example, the discharge cells Si in the odd rows and the odd columns of the plasma display panel are used.
The barrier surfaces on which the phosphors L are formed are different for j, the even-numbered discharge cells Sij + 1 in the odd rows, the odd-numbered discharge cells Si + 1j in the even rows, and the even-numbered discharge cells Si + 1j + 1 in the even rows. . This makes it possible to have four screens with different viewing angles in the same panel.

Further, in the driving method of the plasma display panel of the fourth and fifth features of the present invention, there is provided a method of driving the plasma display panel of the second feature, in which four independent displays are provided. Data is taken in, for example, the first display data is set to the discharge cells (Sij; i = 1 to n−1, j = 1) of odd rows and odd columns.
To m−1), the second display data is applied to the discharge cells (Sij + 1) in the odd rows in the odd rows, the third display data is applied to the discharge cells (Si + 1j) in the odd rows in the even rows, and the fourth display data is applied. Are displayed in discharge cells (Si + 1j + 1) in even rows and even columns, and four independent display data are used as one dot information in a plurality of signal levels corresponding to color signals or gradation signals. In the case of the above, the light-off state or the display and the display position are switched depending on the signal level.

Thus, when four persons want to obtain different information independently, it is possible to display four independent screens with different viewing angles in the same panel.

[0026]

Embodiments of the present invention will now be described with reference to the drawings. First Embodiment FIG. 1 shows a panel structure diagram of a plasma display panel according to a first embodiment of the present invention. FIG. 1 (1) is a panel sectional view of one basic discharge cell, and FIG. 1 (2) is a panel plan view.

In the figure, the plasma display panel of the present embodiment displays information by utilizing the excited light emission of the phosphor L. In each discharge cell, the discharge space has a front glass substrate B1 and a back surface. The structure is sandwiched between the glass substrates B2 and separated by the barrier D, and the phosphor L is formed only on a specific surface of the barrier D.

The difference from the conventional example (FIG. 9) is that the phosphor L is formed only on one of the side surfaces of the barrier D that divides the discharge cell. Visible light from the phosphor L is emitted only in the direction shown in FIG. 1, so that the lighting can be confirmed only when viewed from that direction.

Usually, in the case of a panel utilizing excitation and emission by the phosphor L, a mixed gas of He + Xe system is used.
At that time, ultraviolet rays are generated by the discharge, and visible light is hardly generated. Therefore, even if the discharge space is visible, the lighting state cannot be confirmed unless the surface of the phosphor L is visible, and therefore the display information is zero (non-lighting). Second Embodiment FIG. 2 shows a panel structure diagram of a plasma display panel according to a second embodiment of the present invention. 2 (1) is a sectional view of the panel, and FIG. 2 (2) is a plan view of the panel.

In the plasma display panel of the present embodiment, based on the basic discharge cell structure of the first embodiment, the phosphors L are arranged in the odd and even lines of the display lines along the horizontal direction of the panel. The side surface of the barrier D is changed.

In the discharge cell structure of FIG. 2A, the discharge cell O is an odd-numbered line discharge cell, and the light emitted from the phosphor L can be recognized only from the left side of the drawing. On the other hand, the discharge cell E
Is an even-line discharge cell, and the light emitted from the phosphor L is
It can be recognized only from the right side of the drawing.

As an example, FIG. 3 shows a cell layout of a plasma display panel having 400 lines. The number of lines seen from the A side and the B side is 200 lines, respectively. That is, it is possible to have two screens of 200 lines with different viewing angles in the same panel.

One method of creating information to be displayed on the plasma display panel shown in FIG. 3 with one personal computer and displaying the information will be described below.
Since the information viewed by the person on the A side is different from the information viewed by the person on the B side, it is necessary to create two screens. The personal computer uses a device of 400 lines display.

The screen of the personal computer is divided into upper and lower 200 lines, and the upper 200 lines are A
Create the display data that the person on the side should see,
Display data to be viewed by the person on the B side is created on the line.

The signals input from the personal computer to the display device are usually a vertical synchronizing signal Vsync, a horizontal synchronizing signal Hsync, a dot clock CLK, and display data Data, as shown in FIG.

After the change of the vertical synchronizing signal Vsync, the first line, the second line, and the like for each horizontal synchronizing signal Hsync.
The display data is sequentially transferred to the third line, ..., And the 400th line. Within one horizontal period, from the first dot on the left end of the display to the last dot on the right end (for example, 640 dots)
Up to the dot clock CLK.

Further, in the rewriting of the display data of the plasma display panel, in the conventional driving method (circuit), the display data of the first line is rewritten by the first horizontal synchronizing signal Hsync and the second horizontal synchronizing signal Hsync. , Rewriting the display data of the second line, rewriting the display data of the third line with the third horizontal synchronizing signal Hsync, ..., 40 with the 400th horizontal synchronizing signal Hsync.
The display data of the 0th line was rewritten, and rewriting was sequentially performed.

In this embodiment, as shown in FIG. 5, the display data of the first line is rewritten by the first horizontal synchronizing signal Hsync and the display data of the third line is rewritten by the second horizontal synchronizing signal Hsync. , Rewriting the display data of the fifth line with the third horizontal synchronizing signal Hsync,
..., the display data of the 399th line is rewritten by the 200th horizontal synchronization signal Hsync, the display data of the 2nd line is rewritten by the 201st horizontal synchronization signal Hsync, the 4th line of the 202nd horizontal synchronization signal Hsync Rewriting the display data of, the display data of the 6th line with the 203rd horizontal synchronizing signal Hsync,
The display data of the 400th line is rewritten by the 400th horizontal synchronizing signal Hsync, and sequentially rewritten.

That is, the data from the first line to the 200th line on the personal computer is transferred by the first to the 200th horizontal synchronizing signal Hsync,
Every other line from the 1st line, only odd lines are displayed.
The data from the 201st line to the 400th line on the personal computer are the 201st to the 40th lines.
It is transferred by the 0th horizontal synchronizing signal Hsync, and only even lines are displayed every other line from the second line.

Therefore, the display information on the upper half of the screen of the personal computer emits light only in the upper direction (A side direction) on the display, and the display information on the lower half of the screen is downward (B side direction) on the display. ) Only emits light. Third Embodiment Also in the present embodiment, as in the second embodiment, the display information is created on the plasma display panel shown in FIG.
A method of displaying it will be described.

In the present embodiment, in the information of the entire screen of the personal computer, for each specific area such as a character or a dot, designation is made as to be shown on the A side, the B side, or both sides. Is possible.

Many ordinary personal computers are capable of color display. Using the color information, the information displayed in red is displayed only on the A side, and the information displayed in green is displayed only on the B side on the screen of the personal computer, and is displayed in yellow, which is a mixture of red and green. The information displayed should be information that should be viewed on both sides.

In this case, the signals transferred from the personal computer and the display state on the plasma display panel are as shown in FIG. The display data in the panel can be rewritten by, for example, the first horizontal synchronizing signal H.
The first line and the second line are rewritten by sync. Fourth Embodiment While the third embodiment is an example of displaying on a monochrome plasma display panel using a color display personal computer, this embodiment uses a color display personal computer. It is an example of displaying on a color plasma display panel.

In the case of this embodiment, since the color data (RGB) is used for both the screen viewed on the A side and the screen viewed on the B side, the color information cannot be used as in the third embodiment. Therefore, certain gradation data is used for each color. For example, 4-gradation data is composed of a 2-bit signal line for each color, and each bit has the following brightness weight.

Brightness 1 and 2 for red signal lines R0 and R1, brightness 1 and 2 for green signal lines G0 and G1, and brightness 1 for blue signal lines B0 and B1, respectively. And 2.

Therefore, for example, in the case of red, when the combination of signals is (R0, R1) = (0,0), the brightness is 0, (R0, R).
1) = (1,0) with a brightness of 1, (R0, R1) = (0,
It is possible to express four levels of brightness, that is, the brightness 2 in 1) and the brightness 4 in (R0, R1) = (1, 1).

Therefore, the signal of this gradation is lit only on the A side, lit only on the B side, lit on both sides, and turned off on both sides.
Corresponds to the state of the seed. That is, assuming that the signal R0 is the lighting signal on the A side and the signal R1 is the lighting signal on the B side, the combination of signals (R0, R1) = (0, 0) is “light off on both sides”,
(R0, R1) = (1,0) "lights up on A side only", (R
0, R1) = (0,1) "lights only B side", and (R
When 0, R1) = (1, 1), it is “lighted on both sides”. Fifth Embodiment FIG. 7 is a panel structure diagram (panel plan view) of a plasma display panel according to a fifth embodiment of the present invention.

The plasma display panel of this embodiment is based on the basic discharge cell structure of the first embodiment and has odd and even display lines along the horizontal direction of the panel and display lines along the vertical direction. The side surface of the barrier D on which the phosphor L is arranged is changed between the odd line and the even line.

In the discharge cell structure of this embodiment, the light emitted from the discharge cells Sij in odd rows and odd columns can be recognized only from the left side of the drawing, and the discharge cells Sij + in odd rows and even columns can be recognized.
The light emitted from 1 can be recognized only from the right side of the drawing, the light emitted from the discharge cells Si + 1j in the even numbered rows and the odd columns can be recognized only from the upper side of the drawing, and the light emitted from the discharge cells Si + 1j + 1 in the even numbered row and the even columns can be recognized. Can be recognized only from the bottom. This makes it possible to have four screens with different viewing angles in the same panel.

Also in this embodiment, the second, third,
Also, the same plasma display panel driving method as that of the fourth embodiment is possible, and four independent display data are loaded to the plasma display panel of FIG.
For example, the first display data is applied to discharge cells Sij in odd rows and odd columns, the second display data is applied to discharge cells Sij + 1 in odd rows, and the third display data is applied to discharge cells Sid in even rows and odd columns. The fourth display data is displayed on Si + 1j and on the discharge cells Si + 1j + 1 on even columns in even rows.

Further, when four independent display data have a signal level of a plurality of stages corresponding to a color signal or a gradation signal as one dot information, the light-off state or the display is switched depending on the signal level, It is also possible to switch the display position.

As described above, by using a limited viewing angle, it is possible to display independent information of p screens in the same panel, and as a driving method thereof, p = 2,4 Although the case has been described, various modifications can be developed by modifying the discharge space that is a rectangular parallelepiped into various shapes in the above description. For example, when the discharge space has a triangular prism shape, it can be deformed when p = 3 and 6.

Since the resolution decreases as the value p increases, there is a limit to the increase of the value p.

[0054]

According to the plasma display panel of the first feature of the present invention, in each discharge cell, the discharge space of the phosphor is sandwiched between two substrates and separated by a barrier. Since the body is formed only on a specific surface of the barrier, visible light from the phosphor is emitted only in one direction, and it is possible to confirm the lighting only when viewed from that direction. By changing the surface of the barrier to be formed, it is possible to provide a plasma display panel capable of displaying independent information on a plurality of screens in the same panel.

Further, according to the plasma display panel of the first feature of the present invention, an odd number and an even number of display lines along the horizontal direction of the panel, or an odd number of display lines along the vertical direction of the panel. Since the side surface of the barrier D in which the phosphor L is arranged is changed between the line and the even line, the light emitted from the phosphor in the discharge cells of the odd line and the even line is emitted from one direction and the opposite direction, respectively. Therefore, it is possible to provide a plasma display panel capable of having two screens with different viewing angles in the same panel.

According to the plasma display panel driving method of the first, second and third features of the present invention,
In the plasma display panel of the second characteristic, two independent display data are taken in, and one display data is displayed on an odd line and the other display data is displayed on an even line, so that the viewing angles are different. A method of driving a plasma display panel capable of displaying two independent screens in the same panel can be provided.

Furthermore, according to the plasma display panel of the second feature of the present invention, for example, the discharge cells Sij in the odd columns in the odd rows, the discharge cells Sij + 1 in the even columns in the odd rows, and the odd cells in the even rows are odd. Discharge cells Si + 1j in columns and discharge cells Si + 1 in even columns in even rows
Since the barrier surface on which the phosphor L is formed is different for each of j + 1, it is possible to provide a plasma display panel capable of having four screens with different viewing angles in the same panel.

According to the plasma display panel driving method of the fourth and fifth aspects of the present invention, the plasma display panel driving method of driving the plasma display panel of the second characteristic is independent. One display data is fetched, for example, the first display data is odd-numbered rows and odd-column discharge cells, the second display data is odd-numbered rows and even-column discharge cells, and the third display data is odd-numbered rows. The fourth display data is displayed in even-numbered rows and even-numbered columns in the discharge cells in each column. Therefore, when four persons want to obtain different information independently, four independent screens with different viewing angles are displayed. It is possible to provide a driving method of a plasma display panel capable of displaying the same in the same panel.

[Brief description of drawings]

FIG. 1 is a panel structure diagram of a plasma display panel according to a first embodiment of the present invention, FIG. 1 (1) is a panel sectional view of one basic discharge cell, and FIG. 1 (2) is a panel plan view. .

FIG. 2 is a panel structure view of a plasma display panel according to a second embodiment of the present invention, FIG. 2 (1) is a panel sectional view, and FIG. 2 (2) is a panel plan view.

FIG. 3 is a cell layout diagram of a 400-line plasma display panel according to a second embodiment.

FIG. 4 is a waveform diagram of various signals input from a personal computer to a display device.

FIG. 5 is a diagram for explaining rewriting of display data of a line by a horizontal synchronizing signal in the second embodiment.

FIG. 6 is a waveform diagram of various signals in a third embodiment and an explanatory diagram of a display state on a plasma display panel.

FIG. 7 is a panel structure diagram (panel plan view) of a plasma display panel according to a fifth embodiment of the present invention.

8A and 8B are explanatory views when two people see different screens. FIG. 8A shows a case where two displays are used, and FIG. 8B shows a case where the screen is divided into two and shielded by a screen. is there.

FIG. 9 is a cell structure diagram of a conventional plasma display panel.

[Explanation of symbols]

L ... Phosphor B1 ... Front glass substrate B2 ... Rear glass substrate D ... Barrier Sij (i = 1 to n, j = 1 to m) ... Discharge cell O, E ... Discharge cell Vsync ... Vertical sync signal Hsync ... Horizontal sync signal CLK ... Dot clock Data ... Display data R0, R1 ... Red signal line G0, G1 ... Green signal line B0, B1 ... Blue signal line

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01J 17/04 H01J 11/02

Claims (7)

(57) [Claims] 1. An n × m (n and m are arbitrary positive integers) plasma display panel for displaying information by utilizing excitation and emission of a phosphor (L), wherein each discharge cell comprises: The discharge space of the phosphor (L) is sandwiched between two substrates (B1 and B2), and the barrier (D)
Separated by, the phosphor (L) is formed only to a particular surface of the barrier (D), the i-th of the plasma display panel (i =. 1 to
n−1) row discharge cells (Sij; j = 1 to m) and the i-th
With the discharge cell (Si + 1j) in the + 1st row, or
Discharge cells (Sij; in the j-th column (j = 1 to m-1))
i = 1 to n) and the discharge cell (Sij +) of the j + 1st column
The barrier surface on which the phosphor (L) is formed is different from that of 1).
A plasma display panel characterized by comprising. 2. A contract for importing two independent display data.
Driving the plasma display panel according to claim 1
In the driving method, the one display data is stored in the discharge cell (Sij; i = 1 to n−) of the i-th row of the plasma display panel.
1, j = 1 to m) or the discharge cell (Si
j; i = 1 to n, j = 1 to m-1), the other display data is stored in the discharge cell (Si + 1j) of the (i + 1) th row or the discharge cell of the (j + 1) th column (p + 1) of the plasma display panel. Sij + 1), and a method for driving a plasma display panel, characterized in that each is displayed. 3. The two independent display data have a signal level of a plurality of stages corresponding to a color signal or a gradation signal as information of one dot, and a light-off state or a display switching and a display are performed according to the signal level. The method of driving a plasma display panel according to claim 2 , wherein the position is switched. 4. make up the two display data the independent
The data, which is represented by 1-dot information, is a 2-bit data representing at least four gradation levels of level 0, level 1, level 2, and level 3 corresponding to a color signal or gradation signal.
Consists DOO data, the i-th value of each bit of the data of the 2-bit (i =
1 to n-1) of the discharge cells (Sij; j = 1 to m).
Other th the j (j = 1~m-1) row of the discharge cell Le of (Si
j; i = 1 to n) and the discharge cell (Si
+ 1j) or the discharge cell (Sij +) of the (j + 1) th column.
1) and the display data consisting of level 0 assigned to
The display data consisting of
Discharge cell (Sij) of the i-th row of the channel or before
The discharge cell (Sij) in the jth column is turned on and the level is changed.
The display data consisting of
The discharge cell (Si + 1) of the (i + 1) th row of the panel
j) or the discharge cell (Sij +) of the (j + 1) th column
Turn on 1) and the display data consisting of level 3 is
The release of the i-th row of the plasma display panel
Cell (Sij) and discharge cell of the (i + 1) th row
(Si + 1j) or the discharge cell of the (i + 1) th row
(Si + 1j) and the discharge cell of the (j + 1) th column
Claim 2, characterized in that turning on the (Sij + 1)
7. A method for driving a plasma display panel according to [4]. 5. Information is obtained by utilizing excitation light emission of a phosphor (L).
N × m (n and m are arbitrary positive integers) plasms that display
In a display panel, the discharge space of the phosphor (L) in each discharge cell
Is sandwiched between two substrates (B1 and B2) and the barrier (D)
And the phosphor (L) is separated only on a specific surface of the barrier (D).
And the i-th (i = 1 to 1) of the plasma display panel is formed .
In the (n-1) th row, the discharge cell (Sij) in the j-th (j = 1 to m-1) th column, in the i-th row, the discharge cell (Sij + 1) in the (j + 1) th column, and the i + 1-th row The discharge cell (Si + 1j) in the j-th column in the row and the discharge cell (Si + 1j + 1) in the j + 1-th column in the i + 1-th row have different barrier surfaces on which the phosphor (L) is formed. It features and to pulp plasma display panel that. 6. A contract for fetching four independent display data.
Driving the plasma display panel according to claim 5
A method of driving a plasma display panel, wherein the first display data is stored in a discharge cell (Sij;) of the i-th row and the j-th column of the plasma display panel.
i = 1 to n-1, j = 1 to m-1), the second display data is stored in the discharge cell (Sij + 1) in the j + 1th column in the i-th row and the third display data. In the discharge cell (Si + 1j) of the jth column in the i + 1th row, and the fourth display data in the discharge cell (Si + 1j + 1) of the j + 1th column in the i + 1th row. And a method for driving a plasma display panel. 7. The four independent display data have a signal level of a plurality of stages corresponding to a color signal or a gradation signal as information of one dot, and turn off or display according to the signal level, and display. The method for driving the plasma display panel according to claim 6 , wherein the position is switched.