JPH0850462A - Plane type display device - Google Patents

Abstract

PURPOSE:To provide a plane type display device capable of sufficiently enhancing the luminance of a screen. CONSTITUTION:A screen is divided to an upper block 30 including (M/2) pieces of scanning electrodes 13a and a lower block 31 including (M/2) pieces of scanning electrodes 13b. Signal electrodes consist of N pieces of signal electrodes 14a disposed at the upper block 30 and N pieces of signal electrodes 14b disposed at the lower block 31. Signal electrode driving circuits consist of circuits for the upper block and the lower block. The scanning electrodes 13a of the upper block 30 are successively selected by the scanning electrode driving circuits and the scanning signals are impressed thereto. Simultaneously, the scanning electrodes 13b of the lower block 31 are successively selected as well and the scanning signals are impressed thereto. In addition, the gradation signals having the pulse widths corresponding to the video signals of the scanning electrode positions selected by the upper block are impressed to the signal electrodes 14 for the upper block and simultaneously, the gradation signals having the pulse widths corresponding to the video signals of the scanning electrode positions selected by the lower block 31 are impressed to the signal electrodes 14b for the lower block.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a light emitting body in which electrons emitted from a plurality of linear hot cathodes are applied to a front glass through electron passing holes arranged in a matrix in a control electrode portion. The present invention relates to a flat-panel display device that illuminates a (phosphor) to display an image.

[0002]

2. Description of the Related Art FIG. 29 is a perspective view showing an internal structure of a conventional flat-panel display device having a structure similar to that disclosed in JP-A-3-226949 or JP-A-3-245445. 29 is a sectional view when FIG. 29 is viewed in the II line direction, FIG. 31 is an enlarged sectional view of the control electrode portion (7a part in FIG. 30), and FIG. 32 is the II-II line direction of FIG. 30 or FIG. FIG. 33 is a front view of the control electrode section 7, FIG. 34 is a plan view showing an example of the arrangement of the phosphors 4, FIG.
5 is a plan view showing another example of the arrangement of the phosphors 4. FIG.

As shown in FIGS. 29 and 30, this flat panel display device includes a flat plate-shaped hermetic container 3 having a front glass 1 on the image display surface side and a rear plate 2 facing the front glass 1.
It is provided on the inner surface of the front glass 1 and has M rows and N columns (M and N
Are predetermined natural numbers. ) And phosphors 4 arranged in a matrix. The phosphor 4 is coated in a dot shape on the inner surface of the front glass 1, and 1 is formed on the inner surface of the front glass 1.
An aluminum film (not shown) to which a voltage of about 0 to 30 kV is applied is formed. The phosphor 4 emits a red phosphor R that emits red when irradiated with electrons, a green phosphor G that emits green when irradiated with electrons, and a blue phosphor when irradiated with electrons. And a blue phosphor B, which are regularly arranged, for example, as shown in FIG. 34 or FIG.

The flat panel display device is provided on the inner surface of the back plate 2 so as to face the phosphors 4, and emits electrons toward the entire area where the phosphors 4 are provided. A source 5 and a grid electrode 6 having an opening 6a,
It has a control electrode section 7 that allows or blocks the electrons emitted from the electron emission source 5 and passing through the openings 6a of the grid electrode 6 toward the front glass 1.

The electron emission source 5 is a linear hot cathode 8 which emits electrons when a predetermined voltage is applied by a hot cathode drive circuit (not shown) to cause a current to flow, and a front surface of the linear hot cathode 8. It has a perforated cover electrode 9 having an elliptical cross section that covers the glass side, and a back electrode 10 that covers the back side of the linear hot cathode 8. A large number of small holes for passing electrons are formed in the perforated cover electrode 9, and the electrons emitted from the linear hot cathode 8 are emitted toward the phosphor 4 by applying an appropriate potential. . The back electrode 10 fixes the perforated cover electrode 9 and is applied with substantially the same potential as that of the perforated cover electrode 9.

The grid electrode 6 is made of stainless steel,
As shown in FIG. 29, large openings 6a arranged in a matrix (for example, 1 arranged at a pitch of 2 mm).
It has a square opening with a side of 1.8 mm).

As shown in FIG. 33, the control electrode portion 7 has a substrate 12 having at least the surface of which is insulating and has electron passage holes 11 arranged in M rows and N columns corresponding to the arrangement of the phosphors 4. , M scan electrodes 13 provided in a strip shape on each of the rows of the electron passage holes 11 on the surface of the substrate 12 on the back plate side (in the case where the scan electrodes are shown to be distinguished from each other, the reference numeral 13 is used). Followed by the line number in parentheses,
Described as "13 (1)" ... "13 (M)". ) And N signal electrodes 14 provided in strips for each row of the electron passage holes 11 on the front glass side of the substrate 12 (in the case where the signal electrodes are shown separately, 1
The column number in parentheses is added after 4 to indicate "14 (1)" ...
It describes as "14 (N)." ) And. Scanning electrode 1
3 and the signal electrode 14 are, for example, metal electrodes made of a nickel film, and are formed not only on the flat surface portion of the substrate 12 but also on the inner surface of the electron passage hole 11 as shown in FIGS. 31 and 32. . However, in the center of the electron passage hole 11, there is an insulating portion 15 to which the nickel film is not attached,
The scanning electrode 13 and the signal electrode 14 are electrically insulated. Further, the adjacent scanning electrodes 13 are separated from each other by a separation band 16 having no nickel film attached thereto, and the signal electrodes 14 orthogonal to the scanning electrodes 13 are also separated from each other by a separation band 17 having no nickel film attached thereto. Has been done. Further, the scanning electrode 13 and the signal electrode 14 are the airtight container 3
Is electrically connected to an external drive circuit through a sealing portion (not shown) on the side surface of the.

The scanning electrode 13 and the signal electrode 14 are provided so as to enter the electron passage hole 11 in order to efficiently apply the force of the electric field to the electrons that have entered the electron passage hole 11. According to this structure, it is possible to block the passage of electrons only by applying a small negative potential of about 0 V to several tens of V between the scanning electrode 13 and the signal electrode 14.

FIG. 36 is a block diagram showing the structure of the flat display device. As shown in the figure, this device includes a signal processing circuit 20 for performing gamma correction and the like of an input video signal, and a pulse width modulation for outputting a signal having a pulse width according to the size of the input video signal. The circuit 21 and the signal electrode 14 of the screen (the airtight container 3 and its internal structure) are converted into a gradation signal of a predetermined voltage by the output of the pulse width modulation circuit 21.
And a scan electrode drive circuit 23 that sequentially inputs a scan signal of a predetermined voltage to the scan electrodes 13 of the screen based on the input clock signal.

Next, the operation of the flat display device will be described.

The thermoelectrons emitted from the linear hot cathode 8 are approximately based on the average potential of the linear hot cathode 8 (for simplifying the explanation, this average potential is assumed to be 0 V. The same applies hereinafter). It is uniformly radiated toward the phosphor 4 by the perforated cover electrode 9 and the back electrode 10 to which 5 to 40 V is applied,
It is sent toward the control electrode section 7 by the grid electrode 6 to which 0 to 150 V is applied. If only one selected scanning electrode 13 is set to a positive potential (on state) of about 20 to 100 V and the other scanning electrodes 13 are set to 0 V or a negative potential (off state), the linear hot cathode 8 emits the light. The thermoelectrons are attracted to the scanning electrode 13 in the ON state, and proceed into the electron passage hole 11 in the row in which the scanning electrode 13 is provided. The electrons that have advanced into the electron passage holes 11 are signal electrodes 1
4, the electrons corresponding to the signal electrode 14 in the OFF state passing through only the electron passage hole 11 corresponding to the ON state to which a potential of 40 to 100 V is applied and having 0 V or a negative potential. The passage hole 11 does not pass. That is, the electrons emitted from the electron emission source 7 pass only through the electron passage hole 11 located at the intersection of the ON-state scanning electrode 13 and the ON-state signal electrode 14. The electrons passing through the electron passage hole 11 are irradiated to the phosphor 4 located at a position facing the electron passage hole 11 to cause the phosphor 4 to emit light, and an image is displayed. For example, an operation of sequentially turning on the scanning electrodes 13 one by one and turning on the signal electrodes 14 by a grayscale signal synchronized with the scanning electrodes 13 is performed, for example, 6 times per second.
The image is displayed by repeating 0 times.

FIG. 37 is a waveform diagram when interlaced scanning is performed, and FIG. 38 is an explanatory diagram showing the luminance of each pixel. In the case of interlaced scanning, display of odd fields including scan electrodes 13 (2m-1) in odd rows and display of even fields including scan electrodes 13 (2m) in even rows are alternately performed (m is a natural number). It is.) As shown in FIG. 37, when displaying an odd field, first, the scan electrodes 13 in the odd rows
Scan signals are input in the order of (1), 13 (3), ...
A gray scale signal (for example, a gray scale signal having an application time (pulse width) corresponding to the luminance shown in FIG. 38) is synchronized with the input of each scanning signal and is supplied to the signal electrodes 14 (1) ,.
14 (N). Similarly, when displaying an even field, scan signals are input to the scan electrodes 13 in the even rows in the order of the scan electrodes 13 (2), 13 (4), ... And the respective scan signals are input. , And a grayscale signal is input to the signal electrodes 14 (1), ..., 14 (N).
When the time for turning on the scanning electrode 13 is ty, in order to obtain the brightness of P [%], the time tx for turning on the signal electrode 14 is set to P · ty / 100. Good.

[0013]

However, in the above-described conventional flat-panel display device, as shown in FIG. 37, the scanning signals are sequentially applied to the scanning electrodes 13 one by one, so that at a certain time. Only one line of the scanning electrode 13 emits light, and most of the electrons emitted from the electron emission source 5 are not used for emission of the phosphor 4, so that the brightness of the display screen can be sufficiently increased. There was a problem that I could not.

Further, as shown in FIG. 34, when the phosphors 4 are arranged in the order of red, green, and blue (from the left, R, G, and B) in all rows, the vertical lines are arranged. Since the white stripe is displayed with a width of 3 pixels, there is a problem that the horizontal resolution is low.

Further, as shown in FIG. 35, red and green light emitters are alternately arranged in the odd field (from left to right in the order of R, G, R, G), and green and blue in the even field. Arrange alternately (from left, G, B,
In the case of G and B), since the white stripe in the vertical direction can be displayed with a width of 2 pixels, the horizontal resolution is high, but in this case, the emission color is different between the even field and the odd field. In addition, there is a problem that color flicker appears in interlace driving, and there is a problem that a horizontal white stripe cannot be displayed with a width of one pixel.

Further, in the above-mentioned conventional flat-panel display device, at the time of display, the same predetermined voltage is applied to all the linear hot cathodes 8 at the same time so that electrons are emitted from all the linear hot cathodes 8. Therefore, the utilization rate of electrons (the number of electrons used for light emission of the phosphor / the number of electrons emitted from the linear hot cathode) is low, and the power consumption for emitting electrons from the linear hot cathode 8 is large. There was a problem.

Therefore, an object of the present invention is to provide a flat panel display device capable of sufficiently increasing the brightness of the display screen.

Another object of the present invention is to provide a flat-panel display device which has a high horizontal resolution, does not cause color flicker, and can display a horizontal white stripe with a width of one pixel.

Still another object of the present invention is to provide a flat panel display device capable of reducing power consumption by increasing the utilization rate of electrons emitted from the linear hot cathode.

[0020]

A flat panel display device according to a first aspect of the present invention is a flat airtight container having a front glass and a rear plate facing the front glass, and M rows and N columns on the inner surface of the front glass. (M and N are predetermined natural numbers respectively) arranged in a matrix and provided with a light-emitting body that emits light when irradiated with electrons, and an inner surface of the back plate facing the light-emitting body, An electron emission source that emits electrons toward the light emitter, and N rows in M rows corresponding to the arrangement of the light emitter.
A substrate having electron passing holes arranged in columns, at least the surface of which is insulative, and M provided in a strip shape on each surface of the substrate for each row of the electron passing holes.
Scanning signals to the scanning electrodes, the N signal electrodes on the other surface of the substrate for each row of the electron passage holes, and the M scanning electrodes in order. A scan electrode having a scan electrode drive circuit for applying and a signal electrode drive circuit for applying a gradation signal to the N signal electrodes, and a scan electrode to which the electron emitted from the electron emission source is applied with the scan signal. A device that displays an image by irradiating the light-emitting body with electrons by passing only the amount corresponding to the application time of the gradation signal applied to the signal electrode for each of the electron passage holes of the row provided with Then, on the image display surface, an upper block including scan electrodes from the first row to the (M / 2) th row and a lower block including scan electrodes from the {(M / 2) +1)} row to the Mth row And the N signal electrodes are provided in the upper block. And N lower block signal electrodes provided in the lower block, and the signal electrode drive circuit applies a gradation signal to the upper block signal electrodes. And a lower block signal electrode drive circuit for applying a gradation signal to the lower block signal electrode. The scan electrode drive circuit sequentially selects the scan electrodes of the upper block to generate a scan signal. Simultaneously with the application, the scanning electrodes of the lower block are sequentially selected to apply the scanning signal, and the gradation signal corresponding to the scanning electrode position selected in the upper block is applied to the upper block signal electrode and at the same time the lower block is applied. A grayscale signal corresponding to the position of the scanning electrode selected by is applied to the signal electrodes for the lower block so that images are simultaneously displayed in the upper block and the lower block. It is set to.

According to a second aspect of the present invention, in the flat panel display device, a flat airtight container having a front glass and a rear plate facing the front glass, and N rows (M and N) on the inner surface of the front glass are arranged in M rows.
Are predetermined natural numbers. ) Are arranged in a matrix and emit light by being irradiated with electrons, and an electron emission which is provided on the inner surface of the back plate so as to face the light emitter and emits electrons toward the light emitter. A source, a substrate having electron passing holes arranged in N rows and M columns corresponding to the arrangement of the light emitters, at least the surface of which is insulative; M scan electrodes provided in strips for each row, and N signal electrodes provided in strips for each column of the electron passage holes on the other surface of the substrate. , A scan electrode drive circuit for applying a scan signal so that the M scan electrodes are divided into an odd field and an even field for interlaced scanning, and a signal electrode drive for applying a gradation signal to the N signal electrodes A circuit and the electronic The electrons emitted from the source pass through each of the electron passage holes of the row provided with the scanning electrode to which the scanning signal is applied, in an amount corresponding to the application time of the gradation signal applied to the signal electrode. An image is displayed by irradiating the light-emitting body with electrons, and when an odd field is displayed, it is in the odd field (2 m-
1) The same scanning signal is simultaneously applied to the scanning electrodes (m is a natural number) of the 1st row and the scanning electrodes of the (2m) th row adjacent thereto, and the N signal electrodes are applied by the signal electrode driving circuit. The operation of applying the gradation signal corresponding to the scanning electrode position of the (2m-1) th row is repeatedly executed while increasing m by 1, and when the even field is displayed, it is in the even field (2m ) The same scanning signal is simultaneously applied to the scanning electrode on the (2m + 1) th row and the scanning electrode on the (2m + 1) th row adjacent to the scanning electrode on the (2m) th row by the signal electrode driving circuit. It is characterized in that the operation of applying the gradation signal corresponding to the scanning electrode position is repeatedly executed while increasing m by 1.

According to a third aspect of the present invention, in the flat panel display device, a flat airtight container having a front glass and a back plate facing the front glass is provided, and the inner surface of the front glass has M rows and N columns (M and N).
Are predetermined natural numbers. ) Are arranged in a matrix and emit light by being irradiated with electrons, and an electron emission which is provided on the inner surface of the back plate so as to face the light emitter and emits electrons toward the light emitter. A source, a substrate having electron passing holes arranged in N rows and M columns corresponding to the arrangement of the light emitters, at least the surface of which is insulative; M scan electrodes provided in strips for each row, and N signal electrodes provided in strips for each column of the electron passage holes on the other surface of the substrate. A scan electrode drive circuit for applying a scan signal so that the M scan electrodes are divided into an odd field and an even field for interlaced scanning, and a signal electrode drive circuit for applying a gradation signal to the N signal electrodes And has the electron emission The electrons emitted from the source are made to pass through each of the electron passage holes of the row provided with the scanning electrode to which the scanning signal is applied, in an amount corresponding to the application time of the gradation signal applied to the signal electrode. , An image is displayed by irradiating the luminous body with electrons, and when an odd field is displayed, it is in an odd field (2m-1).
The same scanning signal is simultaneously applied to the scanning electrodes in the row (m is a natural number) and a plurality of scanning electrodes adjacent thereto,
The operation of applying the gradation signal corresponding to the scanning electrode position of the (2m-1) th row to each of the N signal electrodes by the signal electrode driving circuit is repeatedly executed while increasing m by 1 and an even number. When displaying a field, the same scan signal is simultaneously applied to the scan electrodes of the (2m) th row in the even field and a plurality of scan electrodes adjacent thereto, and the N signal electrodes are applied by the signal electrode drive circuit. It is characterized in that the operation of applying the gradation signal corresponding to the scanning electrode position of the (2m) th row is repeatedly executed while increasing m by 1.

According to a fourth aspect of the present invention, in the flat panel display device according to the second or third aspect, the edge portion of the edge portion where the value of the gradation signal applied to the signal electrode by the signal electrode drive circuit changes abruptly. It is characterized by having a high-frequency emphasis filter that emphasizes luminance.

According to a fifth aspect of the present invention, in the flat panel display device according to the first aspect, the scan electrode driving circuit divides the scan electrodes of the upper block into odd fields and even fields to perform interlaced scanning. When the interlace scanning is performed on the scan electrodes of the lower block by dividing them into odd fields and even fields, and when displaying the odd fields in each of the upper block and the lower block, the scan electrodes (2m-1) th row of the odd fields ( m is a natural number) and the scanning electrodes on the (2m) th row adjacent thereto are simultaneously applied, and the signal electrode driving circuit applies (2m-1) to each of the N signal electrodes. The operation of applying the gradation signal corresponding to the position of the scanning electrode on the row is repeatedly executed while increasing m by 1, and the upper block When displaying the even field in the respective lower block is in the even field (2m) th row of scan electrodes and adjacent thereto (2m + 1)
The same scanning signal is applied to the scanning electrodes of the row at the same time, and the gradation signal corresponding to the scanning electrode position of the (2m) th row is applied to each of the N signal electrodes by the signal electrode driving circuit. , M is incremented by 1, and is repeatedly executed.

According to a sixth aspect of the present invention, in the flat panel display device according to the first aspect, the scan electrode driving circuit divides the scan electrodes of the upper block into odd fields and even fields, and performs interlaced scanning. When the interlace scanning is performed on the scan electrodes of the lower block by dividing them into odd fields and even fields, and when displaying the odd fields in each of the upper block and the lower block, the scan electrodes (2m-1) th row of the odd fields ( m is a natural number) and a plurality of scan electrodes adjacent thereto are simultaneously applied, and the signal electrode drive circuit applies (2 m) to each of the N signal electrodes.
-1) The operation of applying the gradation signal corresponding to the position of the scanning electrode on the row is repeatedly executed while increasing m by 1,
When displaying an even field in each of the upper block and the lower block, it is in the even field (2
The same scanning signal is simultaneously applied to the m) th scanning electrode and a plurality of scanning electrodes adjacent thereto, and the (2m) th scanning electrode is applied to each of the N signal electrodes by the signal electrode driving circuit. The operation of applying the gradation signal corresponding to the position,
The feature is that it is repeatedly executed while increasing m by one.

A flat-panel display device according to a seventh aspect is the device according to the fifth or sixth aspect, in which an edge portion in which the value of the grayscale signal applied to the signal electrode by the signal electrode drive circuit changes abruptly. It is characterized by having a high-frequency emphasis filter that emphasizes luminance.

According to an eighth aspect of the present invention, in the flat panel display device according to any one of the first to seventh aspects, the luminous body is
It consists of a red light emitter, a green light emitter, and a blue light emitter that emit red, green, and blue light when irradiated with electrons, and the light emitters in all rows are red, green, and blue in the longitudinal direction of the scanning electrodes. Are arranged so as to be repeatedly arranged in this order, and the arrangement of the light emitters in a certain row and the arrangement of the light emitters in the adjacent row are displaced in the longitudinal direction of the scanning electrode by a distance corresponding to one and a half widths of the light emitters. , Is characterized by arranging the light emitters in each row.

A flat-panel display device according to a ninth aspect is the device according to any one of the first to seventh aspects, in which the luminous body is
It consists of a red light emitter, a green light emitter, and a blue light emitter that emit red, green, and blue light when irradiated with electrons, and in all rows, the light emitters are green, red, and green in the longitudinal direction of the scanning electrodes. , Arranged so that they are repeatedly arranged in the order of blue, and the arrangement of the light emitters in a certain row and the arrangement of the light emitters in the row next thereto correspond to one or two widths of the light emitters in the longitudinal direction of the scanning electrode. It is characterized by arranging the light emitters in each row so as to be displaced by just that amount.

A flat-panel display device according to a tenth aspect is the device according to any one of the first to seventh aspects, wherein the light-emitting body is irradiated with electrons to emit red, green, and
And a red light-emitting body, a green light-emitting body, and a blue light-emitting body that emit blue light, and in all rows, the light-emitting body is arranged so that green, green, red, and blue are repeatedly arranged in this order in the longitudinal direction of the scanning electrodes. The light emitters in each row are arranged so that the arrangement of the light emitters in the row and the arrangement of the light emitters in the adjacent row are displaced in the longitudinal direction of the scanning electrode by a distance corresponding to two widths of the light emitters. Is characterized by.

According to another aspect of the flat display device of the present invention, a flat airtight container having a front glass and a rear plate facing the front glass, and an inner surface of the front glass arranged in a plurality of rows and in a plurality of columns are arranged. And a red light emitting body, a green light emitting body, and a blue light emitting body which respectively emit red, green, and blue light by being irradiated, and the inner surface of the back plate is provided so as to face the light emitting body. An electron emission source for radiating electrons toward, and a substrate having at least a surface having an electron passage hole arranged in a plurality of rows and a plurality of columns corresponding to the arrangement of the light emitters, and one surface of the substrate A plurality of scanning electrodes provided in a strip shape for each row of the electron passage holes, and a strip shape for each column of the electron passage holes on the other surface of the substrate. Multiple signal electrodes provided A scan electrode drive circuit for sequentially applying a scan signal to the scan electrodes, and a signal electrode drive circuit for applying a gradation signal to the signal electrodes, and the scan signal outputs electrons emitted from the electron emission source. By passing an amount corresponding to the application time of the gradation signal applied to the signal electrode for each of the electron passage holes of the row provided with the applied scanning electrode, and irradiating the light emitter with electrons. A device for displaying an image, wherein in all rows, the light emitters are arranged so as to be repeatedly arranged in the order of red, green, and blue in the longitudinal direction of the scanning electrodes, and the light emitters in one row and the row next to it are arranged. It is characterized in that the light emitters in each row are arranged so that the arrangement of the light emitters is displaced in the longitudinal direction of the scanning electrode by a distance corresponding to one and a half of the width of the light emitters.

According to a twelfth aspect of the invention, the flat-panel display device according to the eighth or eleventh aspect is arranged in the longitudinal direction of the scanning electrodes and adjacent to each other based on the video signals simultaneously sampled at a certain time. 3 red light emitters lined up,
It is characterized in that a gradation signal for causing the green light emitter and the blue light emitter to emit light is generated.

According to a thirteenth aspect of the present invention, in the flat type display apparatus according to the eighth or eleventh aspect, an equilateral triangle is formed in two scanning electrodes which are in contact with each other based on video signals simultaneously sampled at a certain time. It is characterized in that a grayscale signal for generating three red light emitting bodies, a green light emitting body, and a blue light emitting body which are arranged adjacent to each other is generated.

According to a fourteenth aspect of the present invention, in the flat display apparatus according to the thirteenth aspect, the scan electrode driving circuit divides the scan electrodes into odd fields and even fields to perform interlaced scanning and scan odd fields. It is characterized in that the combination of the red light emitting body, the green light emitting body, and the blue light emitting body arranged in contact with each other so as to form the equilateral triangle is changed depending on whether the even field is scanned.

According to a fifteenth aspect of the present invention, in the flat panel display device, a flat airtight container having a front glass and a rear plate facing the front glass, and an inner surface of the front glass arranged in a plurality of rows and a plurality of columns are arranged. And a red light emitting body, a green light emitting body, and a blue light emitting body which respectively emit red, green, and blue light by being irradiated, and the inner surface of the back plate is provided so as to face the light emitting body. An electron emission source for radiating electrons toward, and a substrate having at least a surface having an electron passage hole arranged in a plurality of rows and a plurality of columns corresponding to the arrangement of the light emitters, and one surface of the substrate A plurality of scanning electrodes provided in a strip shape for each row of the electron passage holes, and a strip shape for each column of the electron passage holes on the other surface of the substrate. Multiple signal electrodes provided A scan electrode drive circuit for sequentially applying a scan signal to the scan electrodes, and a signal electrode drive circuit for applying a gradation signal to the signal electrodes, and the scan signal outputs electrons emitted from the electron emission source. By passing an amount corresponding to the application time of the gradation signal applied to the signal electrode for each of the electron passage holes of the row provided with the applied scanning electrode, and irradiating the light emitter with electrons. A device for displaying an image, wherein in all rows, the light emitters are arranged in the longitudinal direction of the scanning electrodes so as to be repeatedly arranged in the order of green, red, green, and blue. It is characterized in that the light emitters in each row are arranged so that the arrangement of the light emitters in each row is displaced in the longitudinal direction of the scanning electrode by a distance corresponding to one or two widths of the light emitters.

According to a sixteenth aspect of the present invention, in the flat panel display device, a flat airtight container having a front glass and a rear plate facing the front glass, and a plurality of rows arranged in a plurality of columns are arranged on the inner surface of the front glass. And a red light emitting body, a green light emitting body, and a blue light emitting body which respectively emit red, green, and blue light by being irradiated, and the inner surface of the back plate is provided so as to face the light emitting body. An electron emission source for radiating electrons toward, and a substrate having at least a surface having an electron passage hole arranged in a plurality of rows and a plurality of columns corresponding to the arrangement of the light emitters, and one surface of the substrate A plurality of scanning electrodes provided in a strip shape for each row of the electron passage holes, and a strip shape for each column of the electron passage holes on the other surface of the substrate. Multiple signal electrodes provided A scan electrode drive circuit for sequentially applying a scan signal to the scan electrodes, and a signal electrode drive circuit for applying a gradation signal to the signal electrodes, and the scan signal outputs electrons emitted from the electron emission source. By passing an amount corresponding to the application time of the gradation signal applied to the signal electrode for each of the electron passage holes of the row provided with the applied scanning electrode, and irradiating the light emitter with electrons. A device for displaying an image, wherein in all rows, the light emitters are arrayed in the longitudinal direction of the scanning electrodes so as to be repeatedly arranged in the order of green, green, red, and blue. So that the arrangement of the light emitters in a row is displaced in the longitudinal direction of the scanning electrodes by a distance corresponding to two widths of the light emitters,
It is characterized by arranging the light emitters in each row.

A flat-panel display device according to a seventeenth aspect is the device according to any one of the first through sixteenth aspects, wherein a plurality of linear heat sources that emit electrons when a predetermined voltage is applied to the electron emission source is used. The hot cathode drive circuit is provided with a cathode, and the hot cathode drive circuit for applying a voltage to the linear hot cathode is provided, and the linear hot cathode is arranged so as to extend in the same direction as the longitudinal direction of the scanning electrode. 1 near the scan electrode to which a signal is applied
Alternatively, it is characterized in that the predetermined voltage is applied only to a plurality of linear hot cathodes.

According to a eighteenth aspect of the present invention, in the flat panel display device, a flat airtight container having a front glass and a back plate facing the front glass, and a plurality of rows arranged in a plurality of columns are arranged on the inner surface of the front glass. A light-emitting body that emits light by being irradiated, a plurality of linear hot cathodes that are provided on the inner surface side of the back plate and emit electrons when a predetermined voltage is applied, and a voltage to the linear hot cathode. A hot-cathode drive circuit for applying, and a substrate having at least the surface of which has an electron passage hole arranged in a plurality of rows and a plurality of columns corresponding to the arrangement of the light emitting body, and a substrate having an insulating property.
A plurality of scanning electrodes provided in a strip shape for each row of the electron passage holes on one surface of the substrate,
A plurality of signal electrodes provided in a strip shape for each row of the electron passage holes on the other surface of the substrate,
A scan electrode drive circuit that sequentially applies a scan signal to the plurality of scan electrodes, and a signal electrode drive circuit that applies a gradation signal to the plurality of signal electrodes are provided, and a predetermined voltage is applied by the hot cathode drive circuit. The electrons emitted from the linear hot cathode when applied are converted into the gradation signals applied to the signal electrodes for each of the electron passage holes in the row provided with the scanning electrodes to which the scanning signals are applied. A device that displays an image by irradiating the light-emitting body with electrons by passing an amount corresponding to the application time, and arranging a linear hot cathode so as to extend in the same direction as the longitudinal direction of the scanning electrode, The cathode driving circuit is characterized by applying a predetermined voltage to one or a plurality of linear hot cathodes close to the scanning electrodes to which the scanning signal is applied.

A flat-panel display device according to a nineteenth aspect is the device according to the seventeenth or eighteenth aspect, wherein the scan electrode drive circuit applies a scan signal to a plurality of scan electrodes simultaneously, and the hot cathode drive circuit scans. It is characterized in that a predetermined voltage is applied to a plurality of linear hot cathodes close to the plurality of scanning electrodes to which a signal is applied.

A flat-panel display device according to a twentieth aspect is the device according to any one of the seventeenth to nineteenth aspects, wherein the scan electrode drive circuit applies a scan signal to the scan electrodes and the hot cathode drive circuit is linear. When a predetermined voltage is applied to the hot cathode, a voltage lower than the predetermined voltage is applied to one or more linear hot cathodes near the scan electrode selected next by the scan electrode drive circuit and applied with the scan signal. The feature is that a certain standby voltage is applied.

[0040]

In the apparatus of claim 1, the image display surface is divided into an upper block and a lower block, and the scanning electrode driving circuit sequentially selects the scanning electrodes of the upper block to apply a scanning signal and at the same time, the scanning electrodes of the lower block. To sequentially apply the scan signal, and apply the gradation signal corresponding to the scan electrode position selected in the upper block to the signal electrode for the upper block and simultaneously correspond to the scan electrode position selected in the lower block. By applying a gradation signal to the lower block signal electrodes to simultaneously display images in the upper block and the lower block, the utilization rate of electrons is increased and the brightness is improved.

Further, in the apparatus of claim 2, when the scan electrode is divided into an odd field and an even field and interlaced scanning is performed, when the odd field is displayed, the (2m-1) th row in the odd field is displayed. When the same scanning signal is applied to the scanning electrode and the scanning electrode on the (2m) th row adjacent to the scanning electrode at the same time to display two scanning lines at the same time and the even field is displayed, it is in the even field (2m). The same scan signal is applied to the scan electrode on the row and the scan electrode on the (2m + 1) th row adjacent to the scan electrode at the same time to display two scan lines at the same time, thereby increasing the utilization rate of electrons and increasing the brightness. Is improving.

Further, in the apparatus of claim 3, when the scan electrode is divided into an odd field and an even field for interlaced scanning, when the odd field is displayed, the (2m-1) th row in the odd field is displayed. When the same scan signal is applied to the scan electrodes and a plurality of scan electrodes adjacent thereto at the same time to display a plurality of scan lines at the same time to display an even field, the (2m) th row in the even field is displayed. By applying the same scanning signal to the scanning electrode and a plurality of scanning electrodes adjacent thereto at the same time to display a plurality of scanning lines at the same time, the utilization rate of electrons is increased and the brightness is improved.

According to the fourth aspect of the present invention, a plurality of scanning lines are formed by emphasizing the brightness of the edge portion where the value of the gradation signal applied to the signal electrode is drastically changed by the signal electrode driving circuit. The reduction in vertical resolution that occurs when driven simultaneously is reduced.

Further, in the apparatus according to the fifth aspect, by simultaneously displaying images in the upper block and the lower block, the utilization rate of electrons is increased, and two scanning lines are simultaneously displayed in each block. , The brightness is further improved.

Further, in the apparatus according to the sixth aspect, by simultaneously displaying the images in the upper block and the lower block, the utilization rate of electrons is increased, and simultaneously, a plurality of scanning lines are simultaneously displayed in each block. , The brightness is further improved.

Further, in the apparatus of claim 7, a plurality of scanning lines are formed by emphasizing the brightness of the edge portion where the value of the gradation signal applied to the signal electrode is drastically changed by the signal electrode driving circuit. The reduction in vertical resolution that occurs when driven simultaneously is reduced.

Further, in the device of the eighth aspect, in all rows, the light emitters are red, green, and
It is arranged so that it is repeatedly arranged in the order of blue, and the arrangement of the light emitters in a certain row and the arrangement of the light emitters in the row next thereto are displaced by a distance corresponding to one and a half of the width of the light emitters in the longitudinal direction of the scanning electrode. In addition, by arranging the light emitters in each row, two white stripes in the vertical direction can be expressed with a width of 3 pixels in the horizontal direction, and the resolution in the horizontal direction becomes high. Further, since the red, green, and blue light emitters are arranged in one horizontal line, white stripes can be displayed in one horizontal line, and the combination of the colors emitted in the even and odd fields is the same. Color flicker does not occur in interlaced driving.

Further, in the device of claim 9, in all rows, the illuminants are green, red, and red in the longitudinal direction of the scanning electrodes.
The array of the light emitters in a row and the array of the light emitters in the row adjacent thereto are equivalent to one or two widths of the light emitters in the longitudinal direction of the scanning electrode. By arranging the light emitters in each row so as to be offset by a distance, the red, green, and blue light emitters are included in one horizontal line, so a white stripe can be displayed in one horizontal line. Since the combination of the colors emitted in the even field and the odd field is the same, color flicker does not occur in interlaced driving.

Further, in the apparatus of the tenth aspect, the light emitters are arranged in all the rows so as to be repeatedly arranged in the order of green, green, red, and blue in the longitudinal direction of the scanning electrodes, and the light emitters of a certain row are arranged. By arranging the light emitters in each row so that the arrangement of the light emitters in the adjacent row is displaced in the longitudinal direction of the scanning electrode by a distance corresponding to two widths of the light emitters, one horizontal line is formed. Since it contains red, green, and blue illuminants, white stripes can be displayed in one horizontal line, and the color flicker in interlaced driving is the same because the combination of colors emitted in even and odd fields is the same. Does not occur.

Further, in the apparatus of the eleventh aspect, in all rows, the light emitters are arranged repeatedly in the order of red, green, and blue in the longitudinal direction of the scanning electrode, and the light emitters in a row and the adjacent rows thereof are arranged. By arranging the light emitters in each row so that the arrangement of the light emitters in each row is shifted in the longitudinal direction of the scanning electrode by a distance corresponding to one and a half of the width of the light emitter, three pixels in the horizontal direction are arranged. It becomes possible to express two white stripes in the vertical direction by the width, and the resolution in the horizontal direction becomes high. Further, since the red, green, and blue light emitters are arranged in one horizontal line, white stripes can be displayed in one horizontal line, and the combination of the colors emitted in the even and odd fields is the same. Color flicker does not occur in interlaced driving.

According to the twelfth aspect of the invention, the three red light emitters, the green light emitters, and the blue light emitters arranged in the longitudinal direction of the scanning electrodes and adjacent to each other are treated as one group, A grayscale signal for causing the group of light emitters to emit light is generated based on video signals simultaneously sampled at a certain time.

Further, in the apparatus of claim 13, the red light emitting body, the green light emitting body and the blue light emitting body which are arranged in contact with each other so as to form an equilateral triangle in two scanning electrodes which are in contact with each other are treated as one group, A grayscale signal for causing the group of light emitters to emit light is generated based on video signals simultaneously sampled at a certain time.

Further, in the apparatus of claim 14, the red light emitting body, the green light emitting body and the blue light emitting body which are arranged adjacent to each other so as to form an equilateral triangle in two scanning electrodes which contact each other are treated as one group, A grayscale signal for causing the groups of light emitters to emit light is generated based on video signals simultaneously sampled at a certain time point, and in interlace driving, the light emission is performed depending on whether to scan an odd field or an even field. The combination of light emitters that make up a body group is changed.

Further, in the apparatus according to the fifteenth aspect, the light emitters are arranged in all the rows so as to be repeatedly arranged in the longitudinal direction of the scanning electrodes in the order of green, red, green and blue, and the light emitters of a certain row are arranged. By arranging the light emitters in each row so that the arrangement of the light emitters in the adjacent row is displaced in the longitudinal direction of the scanning electrode by a distance corresponding to one or two widths of the light emitters, the horizontal direction is 1 Since the lines include red, green, and blue light emitters, white stripes can be displayed in one horizontal line, and since the colors emitted in the even and odd fields are the same, color is achieved in interlaced driving. No flicker.

Further, in the apparatus according to the sixteenth aspect, in all rows, the light emitters are arranged in the longitudinal direction of the scanning electrode in the order of green, green, red, and blue repeatedly, and the light emitters in one row are arranged. By arranging the light emitters in each row so that the arrangement of the light emitters in the adjacent row is displaced in the longitudinal direction of the scanning electrode by a distance corresponding to two widths of the light emitters, one horizontal line is formed. Since it contains red, green, and blue light emitters, white stripes can be displayed with one horizontal line, and color flicker occurs in interlaced driving because the colors emitted in even and odd fields are the same. Absent.

Further, in the apparatus of the seventeenth aspect, a plurality of linear hot cathodes are provided as electron emission sources, and a hot cathode drive circuit for applying a voltage to the linear hot cathodes is provided.
A linear hot cathode is arranged so as to extend in the same direction as the longitudinal direction of the scanning electrode, and a predetermined voltage is applied only to one or more linear hot cathodes close to the scanning electrode to which the scanning signal is applied by the hot cathode drive circuit. By doing so, the utilization rate of electrons is increased.

In the apparatus of the eighteenth aspect, the electron emission source has a plurality of linear hot cathodes, and a hot cathode drive circuit for applying a voltage to the linear hot cathodes is provided. Arrange the linear hot cathode to extend in the same direction,
The hot cathode drive circuit applies a predetermined voltage only to one or a plurality of linear hot cathodes close to the scan electrodes to which the scan signal is applied, thereby increasing the electron utilization rate.

In the apparatus of the nineteenth aspect, the scan electrode drive circuit applies the scan signal to the plurality of scan electrodes at the same time, and the hot cathode drive circuit applies the scan signals to the plurality of scan electrodes close to the plurality of scan electrodes. The application rate of electrons is increased by applying a predetermined voltage to the linear hot cathode of the book.

In the apparatus of claim 20, when the scan electrode drive circuit applies a scan signal to the scan electrode and the hot cathode drive circuit applies a predetermined voltage to the linear hot cathode,
Next, since the standby voltage lower than the predetermined voltage is applied to the one or more linear hot cathodes near the scan electrode selected by the scan electrode drive circuit and to which the scan signal is applied, the linear heat cathode is applied. Electrons are immediately emitted after a predetermined voltage is applied to the cathode.

[0060]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Embodiment 1 FIGS. 1 to 4 relate to a flat panel display device according to Embodiment 1 of the present invention. FIG. 1 is a front view of a control electrode portion, and FIG.
Is a block diagram showing the configuration of the apparatus, FIG. 3 is an explanatory diagram showing a scanning signal, and FIG. 4 is a flowchart showing the operation of the apparatus.

The flat-panel display device of Example 1 is different from the above-described conventional device only in the structure of the control electrode portion 7 and the signals (driving method) applied to the scanning electrodes and the signal electrodes, and other structures are conventional. It is the same as the device. That is, the device of Example 1 has the same structure as the structure of the conventional device shown in FIGS. 29 to 32. In order to avoid duplication of description, the description of the same parts as those of the conventional device is omitted, and the differences from the conventional device will be described below. In addition, in the following description, FIG. 29 to FIG. 32 are also referred to.

In the apparatus of Example 1, the control electrode section 7 is divided into an upper block 30 and a lower block 31, as shown in FIG. In the upper block 30, the scanning electrodes 13a from the first row to the (M / 2) th row (when the scanning electrodes are shown to be distinguished from each other, a row number in parentheses is added after the reference numeral 13a to indicate “13a ( 1) ”...“ 13a (M /
2) ”. ) Is provided, lower block 3
1, the scanning electrodes 13b from the {(M / 2) +1} th line to the (M) th line (in the case where the scanning electrodes are shown to be distinguished from each other, a line number in parentheses is given after the reference numeral 13b, "1
3b {(M / 2) +1} "..." 13b (M) ". ) Is provided. Also, in the upper block 30,
N upper block signal electrodes 14a (when the signal electrodes are shown to be distinguished from each other, a column number in parentheses is added after the reference numeral 14a to describe as “14a (1)” ... “14a (N)”. .) Are provided in the lower block 31, and the N lower block signal electrodes 14b (when the signal electrodes are shown to be distinguished from each other, a column number in parentheses is added after the reference numeral 14b to indicate “14b (1)”). "..." 14b (N) "is provided.

In the apparatus of the first embodiment, as shown in FIG. 2, the upper block 30 and the lower block 31 are provided with separate circuits. That is, this apparatus includes an upper block signal processing circuit 32 that performs gamma correction of an input video signal for the upper block, and an upper block that outputs a signal having a pulse width corresponding to the size of the input video signal. Pulse width modulation circuit 33 and an upper block signal electrode drive circuit 3 for applying the output of the pulse width modulation circuit 33 to the signal electrode 14a of the upper block 30 as a gradation signal of a predetermined voltage.
4 and. Similarly, this apparatus includes a lower block signal processing circuit 35 that performs gamma correction and the like of the input lower block video signal, and a lower block signal that outputs a signal having a pulse width corresponding to the size of the input video signal. It has a block pulse width modulation circuit 36 and a lower block signal electrode drive circuit 37 for applying the output of the pulse width modulation circuit 36 to the signal electrode 14b of the lower block 31 as a gradation signal of a predetermined voltage. Further, this device sends a scan signal of a predetermined voltage based on the input clock signal to the scan electrodes 13a, 13a of the screen.
and a scan electrode driving circuit 38 for inputting to b.

As shown in FIG. 3, the scan electrode drive circuit 38 sequentially selects the scan electrodes 13a of the upper block 30 to apply a scan signal and simultaneously selects the scan electrodes 13b of the lower block 31 to scan in sequence. A signal is applied and a grayscale signal corresponding to the scanning electrode position selected in the upper block 30 is applied to the upper block signal electrode 14a, and at the same time, a grayscale signal corresponding to the scanning electrode position selected in the lower block 31 is applied. Is applied to the lower block signal electrode 14b to display an image simultaneously in the upper block 30 and the lower block 31.

Next, the operation of the apparatus of the first embodiment will be described in more detail with reference to FIG. As shown in FIG. 4, first, m = 1 (step 101), and the upper block 30 is set.
Scan electrode 13a (m) on the m-th row and m on the lower block 31
The scan electrodes 13b {(M / 2) + m} of the row are simultaneously turned on (step 102), and the gradation signal based on the image information of the scan electrode 13a (m) position is input to the signal electrode 14a of the upper block 30. , The signal electrode 14b of the lower block 31
A gradation signal based on the image information at the position of the scanning electrode 13b {(M / 2) + m)} is input to (step 103). At this time, the phosphor facing the m-th row scanning electrode 13a (m) of the upper block 30 emits light, and at the same time, the phosphor facing the m-th row scanning electrode 13b {(M / 2) + m} of the lower block 31. Emits light.

Next, 1 is added to m (step 104),
It is judged whether or not the image display of one frame is completed (step 105), and if it is not completed, the process returns to step 102 and the operations of steps 102 to 105 are repeated. When it is determined in step 105 that the display of one frame is completed, the process returns to step 101 and the image display operation of steps 101 to 105 is repeated based on the image information of the next frame. According to the apparatus of the first embodiment, only two scanning lines are emitted at the same time, but the blinking of the scanning lines is so fast that it cannot be discerned by human eyes, for example, 60 screens are repeated per second. By setting the period, it can be recognized as an image.

As described above, according to the apparatus of the first embodiment,
One of the scanning electrodes 13a of the upper block 30 and the lower block 3
By simultaneously selecting one scan electrode 13b, that is, two scan electrodes at the same time, two scan lines are made to emit light at the same time. Therefore, the utilization rate of the electrons emitted from the electron emission source 5 is changed to the above-mentioned conventional one. The device can be doubled, and thus the brightness of the display screen can be doubled.

In the above description, the case of line-sequential scanning in which the scanning electrodes are scanned in the arrangement order in each of the upper block 30 and the lower block 31 has been described. The same effect can be obtained by performing race scanning.

Embodiment 2 FIGS. 5 and 6 relate to a flat panel display device according to Embodiment 2 of the present invention. FIG. 5 is a waveform diagram showing scanning signals and gradation signals, and FIG. 6 shows the operation of the device. It is a flowchart shown.

The flat panel display device according to the second embodiment has the scanning electrode 1
3 and the signal (driving method) applied to the signal electrode 14 are different from the above-described conventional device, and other configurations are the same as those of the above-described conventional device. That is, the device of the second embodiment has the same structure as that of the conventional device shown in FIGS. 29 to 33 and 36. In order to avoid duplication of description, the description of the same parts as those of the conventional device is omitted, and the differences from the conventional device will be described below. In addition, in the following description, FIG. 29 to FIG. 33 and FIG. 36 will also be referred to.

In the device of the second embodiment, the scan electrode drive circuit 23 applies a scan signal so that the M scan electrodes 13 are divided into an odd field and an even field for interlaced scanning.

As shown on the left side of FIG. 5, when an odd field is displayed, it is in the odd field (2 m
-1) The same scanning signal is simultaneously applied to the scanning electrode 13 (2m-1) of the 1st row and the scanning electrode 13 (2m) of the (2m) th row which is adjacent to the scanning electrode 13 (2m-1). A gradation signal having a pulse width corresponding to the video signal at the scanning electrode position of the (2m-1) th row is applied to each of the signal electrodes 14. Next, the scanning electrode 13 (2m + 1) on the (2m + 1) th row in the odd field and the adjacent (2m +)
2) The same scanning signal is applied to the scanning electrodes 13 (2m + 2) of the row at the same time, and the signal electrode driving circuit 22 corresponds to the video signal of the scanning electrode position of the (2m + 1) th row to each of the N signal electrodes 14. A gradation signal having a pulse width to be applied is applied.

As shown on the right side of FIG. 5, when displaying an even field, it is in the even field (2
scan electrode 13 (2m) in the (m) th row and adjacent (2)
The same scanning signal is simultaneously applied to the scanning electrode 13 (2m + 1) of the (m + 1) th row, and the signal electrode driving circuit 22 corresponds to the video signal of the scanning electrode position of the (2m) th row to each of the N signal electrodes 14. A gradation signal having a pulse width to be applied is applied. Next, the scan electrode 13 (2m + 2) on the (2m + 2) th row in the even field and the adjacent (2m +)
3) Simultaneously applying the same scanning signal to the scanning electrode 13 (2m ++ 3) of the row, and the signal electrode drive circuit 22 corresponds to the video signal of the scanning electrode position of the (2m + 2) th row to each of the N signal electrodes 14. A gradation signal having a pulse width to be applied is applied.

Next, the operation of the apparatus according to the second embodiment will be described in more detail with reference to FIG. As shown in FIG. 6, when displaying an odd-numbered field, first, m = 1 is set (step 201), and the scanning electrode 13 of the (2m−1) th row is set.
(2m-1) and the scanning electrode 13 (2m) on the (2m) th row adjacent thereto are simultaneously turned on (step 20).
2), the scan electrode 1 in the odd field on the signal electrode 14
A gradation signal having a pulse width based on 3 (2m-1) video information is input (step 203). At this time, the scanning electrode 13
At the same time as the phosphor facing (2m-1) emits light, the phosphor facing the scanning electrode 13 (2m) emits light.

Next, 1 is added to m (step 204),
It is determined whether or not the image display of one frame in the odd field is completed (step 205). If not completed, the process returns to step 202 and the operations of steps 202 to 205 are repeated. When it is determined in step 205 that the image display of one frame of the odd field is completed, the process proceeds to step 206 and the display of the even field is started.

When displaying an even field, first, m = 1 is set (step 206), and the scan electrode 13 (2m) on the (2m) th row and the scan electrode 13 (2m + 1) on the (2m + 1) th row adjacent thereto are set. ) Are simultaneously turned on (step 207), and a gradation signal having a pulse width based on the image information of the scanning electrode 13 (2m) in the even field is input to the signal electrode 14 (step 208). At this time, the phosphor facing the scanning electrode 13 (2 m) emits light, and at the same time,
The fluorescent substance facing the scanning electrode 13 (2m + 1) emits light.

Next, 1 is added to m (step 209),
It is determined whether or not the image display of one frame of the even field is completed (step 210). If not completed, the process returns to step 207 and the operations of steps 207 to 210 are repeated. When it is determined in step 210 that the image display of one frame of the even field is completed, the process returns to step 201 and the image display operations of steps 201 to 210 are repeated based on the image information of the next frame. According to the device of the second embodiment, only two scanning lines are emitted at the same time, but the blinking of the scanning lines is so fast that it cannot be discerned by human eyes, for example, 60 screens are repeated per second. By setting the period, it can be recognized as an image.

As described above, according to the apparatus of the second embodiment,
As shown in FIG. 5, not only the selected scan electrode 13 but also the scan electrodes adjacent thereto are simultaneously applied with the scan signal to cause two scan lines to emit light at the same time. The utilization rate of the electrons emitted from the device 5 can be approximately doubled as compared with the above-mentioned conventional device, and thus the brightness of the display screen can be approximately doubled.

Embodiment 3 FIGS. 7 and 8 relate to a flat panel display device according to Embodiment 3 of the present invention. FIG. 7 is a waveform diagram showing a scanning signal and a gradation signal, and FIG. 8 shows the operation of the device. It is a flowchart shown.

The flat-panel display device according to the third embodiment includes the scanning electrode 1
3 and the signal (driving method) applied to the signal electrode 14 are different from the above-described conventional device, and other configurations are the same as those of the above-described conventional device. That is, the device of Example 3 has the same structure as the structure of the conventional device shown in FIGS. 29 to 33, and 36. In order to avoid duplication of description, the description of the same parts as those of the conventional device is omitted, and the differences from the conventional device will be described below. In addition, in the following description, FIG. 29 to FIG. 33 and FIG. 36 will also be referred to.

In the device of the third embodiment, the scan electrode drive circuit 23 applies a scan signal so that the M scan electrodes 13 are divided into an odd field and an even field for interlaced scanning.

As shown on the left side of FIG. 7, when the odd field is displayed, it is in the odd field (2 m
-1) scan electrode 13 (2m-1) on the row and scan electrodes 13 (2m) and (2m + 1) on the adjacent (2m) row
The same scanning signal is applied to the scanning electrodes 13 (2m + 1) of the row at the same time, and the signal electrode driving circuit 22 corresponds to the video signal of the scanning electrode position of the (2m-1) th row to each of the N signal electrodes 14. A gradation signal having a pulse width to be applied is applied. Next, the scanning electrode 13 (2m + 1) of the (2m + 1) th row in the odd field and the adjacent (2m + 2)
The same scanning signal is simultaneously applied to the scanning electrodes 13 (2m + 2) of the row and the scanning electrodes 13 (2m + 3) of the row (2m + 3), and the signal electrode drive circuit 22 applies N signal electrodes 14
A gradation signal having a pulse width corresponding to the video signal at the scanning electrode position of the (2m + 1) th row is applied to each of the above.

As shown on the right side of FIG. 7, when an even field is displayed, it is in the even field (2
scan electrode 13 (2m) in the (m) th row and adjacent (2)
Scan electrodes 13 (2m + 1) and (2m +) in the (m + 1) th row
2) The same scanning signal is applied to the scanning electrodes (2m + 2) of the row at the same time, and the signal electrode drive circuit 22 corresponds to the video signal of the scanning electrode position of the (2m) row to each of the N signal electrodes 14. A gradation signal with a pulse width is applied. next,
Scan electrode 13 on the (2m + 2) th row in the even field
(2m + 2) and the scanning electrode 13 of the (2m + 3) th row which adjoins this (2m + 3) and the scanning electrode 1 of the (2m + 4) th row
3 (2m + 4) at the same time, and the signal electrode drive circuit 22 applies to each of the N signal electrodes 14 a gradation signal having a pulse width corresponding to the video signal at the scanning electrode position of the (2m + 2) th row. Is applied.

Next, the operation of the apparatus of the third embodiment will be described in more detail with reference to FIG. As shown in FIG. 8, when displaying an odd field, first, m = 1 is set (step 301), and the scanning electrode 13 of the (2m-1) th row is set.
(2m-1) and the adjacent scanning electrode 13 (2m) and scanning electrode 13 (2m + 1) are simultaneously turned on (step 302), and the signal electrode 14 has the scanning electrode 13 (2m-1) in an odd field. A gradation signal having a pulse width based on the video information of is input (step 303). At this time, the phosphor facing the scan electrode 13 (2m-1) emits light, and at the same time, the scan electrode 13 (2m) and the scan electrode 13 (2
The phosphor facing (m + 1) emits light.

Next, 1 is added to m (step 304),
It is determined whether or not the image display of one frame in the odd field is completed (step 305). If not completed, the process returns to step 302 and the operations of steps 302 to 305 are repeated. When it is determined in step 305 that the image display of one frame of the odd field is completed, the process proceeds to step 306, and the display of the even field is started.

When displaying an even-numbered field, first, m = 1 (step 306), and the scan electrode 13 (2m) on the (2m) th row and the scan electrode 13 (2 adjacent to it).
m + 1) and the scanning electrode 13 (2m + 2) are simultaneously turned on (step 307), and a grayscale signal having a pulse width based on the image information of the scanning electrode 13 (2m) in the even field is input to the signal electrode 14 ( Step 308).
At this time, the phosphor facing the scan electrode 13 (2m) emits light, and at the same time, the scan electrode 13 (2m + 1) and the scan electrode 1
The phosphor facing 3 (2m + 2) emits light.

Next, 1 is added to m (step 309),
It is judged whether or not the image display of one frame of the even field is completed (step 310), and if not completed, the process returns to step 307 to repeat the operations of steps 307 to 310. When it is determined in step 310 that the image display of one frame of the even field is completed, the process returns to step 301 and the image display operation of steps 301 to 310 is repeated based on the image information of the next frame. According to the apparatus of the third embodiment, only three scanning lines emit light at the same time, but the blinking of the scanning lines is so fast that human eyes cannot distinguish it, for example, 60 screens are repeated per second. By setting the period, it can be recognized as an image.

As described above, according to the apparatus of the third embodiment,
As shown in FIG. 7, not only the selected scan electrode 13 but also the two scan electrodes adjacent to the selected scan electrode 13 are simultaneously applied with the scan signal to simultaneously emit light from the three scan lines. The utilization factor of the electrons emitted from the emission source 5 can be approximately tripled as compared with the above-mentioned conventional device, and thus the brightness of the display screen can be approximately tripled.

In the above description, the case where three scanning electrodes are simultaneously turned on has been described, but the present invention is not limited to this and may be four or more.

Embodiment 4 FIG. 9 is a flowchart showing the operation of the flat panel display device according to Embodiment 4 of the present invention.

The flat panel display device of Example 4 has the scanning electrode 1
Only the signals (driving method) applied to 3a, 13b and the signal electrodes 14a, 14b are different from the device of the first embodiment,
The other structure is the same as that of the device of the first embodiment. In order to avoid duplication of description, description of the same parts as those in the first embodiment is omitted, and the differences from the first embodiment will be described below. In addition, in the following description, FIG. 1, FIG.
32 to 36 are also referred to.

In the flat panel display device of Example 4, in each of the upper block 30 and the lower block 31,
The same interlaced scanning as in the second embodiment is performed. That is, the scan electrode drive circuit 38 applies a scan signal so that the (M / 2) scan electrodes 13a of the upper block 30 are divided into an odd field and an even field to perform interlaced scanning, and at the same time (M) of the upper block 30. / 2) A scanning signal is applied so that the two scanning electrodes 13b are divided into an odd field and an even field for interlaced scanning.

When displaying an odd field, the scan electrode 13a (2m-1) on the (2m-1) th row in the odd field of the upper block 30 and the adjacent scan electrode 13a (2m) are displayed.
The same scanning signal is applied to the scanning electrodes 13a (2m) of the row at the same time, and the upper block signal electrode driving circuit 34 outputs N signals.
A grayscale signal having a pulse width corresponding to the video signal at the scanning electrode position of the (2m-1) th row is applied to each of the signal electrodes 14a of the book, and at the odd field of the lower block 30 (2m-1). Scan electrode 13b of the row {(M / 2)
+ (2m-1)} and the scanning electrode 13b ((M / 2) + (2m)} on the (2m) th row adjacent thereto are simultaneously applied with the same scanning signal, and the lower block signal electrode driving circuit 37 is applied. Thus, a gradation signal having a pulse width corresponding to the video signal at the scanning electrode position of the (2m-1) th row is applied to each of the N signal electrodes 14b.

Next, the scan electrode 13a (2m + 1) on the (2m + 1) th row in the odd field of the upper block 30 and the scan electrode 13a (2 on the (2m + 2) th row adjacent to the scan electrode 13a (2).
m + 2) and the same scanning signal is simultaneously applied to each of the N signal electrodes 14a by the upper block signal electrode driving circuit 34, and a pulse width corresponding to the video signal at the scanning electrode position of the (2m + 1) th row is applied to the floor. Applying a toning signal,
The scanning electrode 13b of the (2m + 1) th row {(M / 2) + (2m + 1)} in the odd field of the lower block 30 and the scanning electrode 13b of the (2m + 2) th row adjacent to this ((M
/ 2) + (2m + 2)} at the same time, and the lower block signal electrode drive circuit 37 corresponds to the video signal at the scanning electrode position of the (2m + 1) th row to each of the N signal electrodes 14b. A gradation signal having a pulse width to be applied is applied.

When displaying an even field, the scan electrode 13a (2m) on the (2m) th row in the even field of the upper block 30 and the scan electrode 13a (2m + 1) on the (2m + 1) th row adjacent thereto are simultaneously displayed. The same scanning signal is applied, and the upper block signal electrode drive circuit 34 applies N
A gradation signal having a pulse width corresponding to the video signal at the scanning electrode position of the (2m) th row is applied to each of the signal electrodes 14a, and the scanning of the (2m) th row in the even field of the lower block 30 is performed. Electrode 13b {(M / 2) + (2
m)} and the scanning electrode 1 in the (2m + 1) th row adjacent to this
3b {(M / 2) + (2m + 1)} are simultaneously applied with the same scanning signal, and the lower block signal electrode drive circuit 37 applies the scanning electrode position of the (2m) th row to each of the N signal electrodes 14b. A gradation signal having a pulse width corresponding to the video signal is applied.

Next, the scan electrode 13a (2m + 2) on the (2m + 2) th row in the even field of the upper block 30 and the scan electrode 13a (2) on the (2m + 3) th row which is adjacent thereto.
m + 3) and the same scanning signal is simultaneously applied to the signal electrodes driving circuit 34 for the upper block, and each of the N signal electrodes 14a has a pulse width corresponding to the video signal at the scanning electrode position of the (2m + 2) th row. Applying a toning signal,
The scan electrode 13b of the (2m + 2) th row in the even field of the lower block 30 {(M / 2) + (2m + 2)} and the scan electrode 13b of the (2m + 3) th row adjacent thereto ((M
/ 2) + (2m + 3)} at the same time, and the lower block signal electrode drive circuit 37 applies the video signal at the scanning electrode position of the (2m + 2) th row to each of the N signal electrodes 14b. A gradation signal having a pulse width to be applied is applied.

Next, the operation of the apparatus according to the fourth embodiment will be described in more detail with reference to FIG. As shown in FIG. 9, when displaying an odd field, first, m = 1 is set (step 401), and the scanning electrode 13a (2m-1) of the (2m-1) th row of the upper block 30 and Adjacent (2
The scanning electrodes 13a (2m) of the (m) th row are simultaneously turned on, and the scanning electrodes 13b of the (2m-1) th row of the lower block 31 {(M / 2) + (2m-1)} and The scanning electrodes 13b {(M / 2) + (2
m)} are simultaneously turned on (step 402), and a gradation signal having a pulse width based on the video information of the scan electrode 13a (2m-1) in the odd field is input to the signal electrode 14a of the upper block 30. , The scan electrode 13b in the odd field on the signal electrode 14b of the lower block 31
A gradation signal having a pulse width based on video information of {(M / 2) + (2m-1)} is input (step 403). At this time, in the upper block 30, the scanning electrodes 13a (2 m
-1) and the phosphor facing the scanning electrode 13 (2m) emits light, and in the lower block 31, the phosphor facing the scanning electrode 13b {(M / 2) + (2m-1)}. And the phosphor facing the scanning electrode 13b {(M / 2) + (2m)} emits light.

Next, 1 is added to m (step 404),
It is determined whether or not the image display of one frame of each odd field of the upper block 30 and the lower block 31 is completed (step 405). If not completed, the process returns to step 402 and the operations of steps 402 to 405 are performed. repeat. When it is determined in step 405 that the image display of one frame of the odd field is completed, the process proceeds to step 406, and the display of the even field is started.

When displaying an even field, first, m = 1 is set (step 406), and the scanning electrode 13a (2m) of the (2m) th row of the upper block 30 and the scanning of the (2m + 1) th row adjacent thereto are performed. The electrodes 13a (2m + 1) and the lower block 31 (2
Scan electrode 13b on the (m) th row {(M / 2) + (2m)} and scan electrode 13b on the (2m + 1) th row adjacent to it
{(M / 2) + (2m + 1)} are simultaneously turned on (step 407), and the signal electrode 14a of the upper block 30 is turned on.
A grayscale signal having a pulse width based on the image information of the scan electrode 13a (2m) in the even field is input to the scan electrode 13b {(M / 2) + in the even field and the signal electrode 14b of the lower block 31 is input to A gradation signal having a pulse width based on the video information of (2m)} is input (step 408). At this time, in the upper block 30, the fluorescent substance facing the scanning electrode 13a (2m) and the scanning electrode 13
The fluorescent substance facing (2m + 1) emits light, and the lower block 3
In 1 the scan electrode 13b {(M / 2) + (2m)}
And the scanning electrode 13b {(M / 2) + (2
The phosphor facing (m + 1)} emits light.

Next, 1 is added to m (step 409),
It is determined whether or not the image display of one frame of each even field of the upper block 30 and the lower block 31 is completed (step 410), and if not completed, the process returns to step 407 and the operations of steps 407 to 410 are performed. repeat. When it is determined in step 410 that the image display of one frame of the even field is completed, the process returns to step 401 and the image display operation of steps 401 to 410 is repeated based on the image information of the next frame.
According to the apparatus of the fourth embodiment, in each of the upper block 30 and the lower block 31, only two scanning lines emit light at the same time, but the blinking of the scanning lines is so fast that it cannot be discerned by human eyes. , For example, 60 per second
An image can be recognized by setting a cycle of repeating the screen.

As described above, according to the apparatus of the fourth embodiment,
Since two scanning lines are simultaneously emitted in each of the upper block 30 and the lower block 31 by simultaneously applying the scanning signal to not only the selected scanning electrodes 13a and 13b but also the scanning electrodes adjacent thereto, The utilization rate of the electrons emitted from the electron emission source 5 can be increased to about four times that of the above-described conventional device, and thus the brightness of the display screen can be increased to about four times.

In the above description, the case where the device driving method of the second embodiment is incorporated into the device of the first embodiment has been described, but the present invention is not limited to this, and the device of the first embodiment can be applied. The driving method of the apparatus of the third embodiment may be incorporated, and in this case, the brightness can be further improved.

Embodiment 5 FIGS. 10 to 14 relate to a flat panel display device according to Embodiment 5 of the present invention. FIG. 10 is a block diagram showing the structure of the device, and FIGS. 11 and 12 are high-frequency emphasis filters. FIG. 13 is an explanatory view of a display screen when a high frequency emphasis filter is not provided, and FIG. 14 is an explanatory view of a display screen when a high frequency emphasis filter is provided. 11 to 14, the X axis indicates the scanning line position, and Y
The axis shows the brightness.

As shown in FIG. 10, the flat panel display device according to the fifth embodiment includes a signal processing circuit 20 and a pulse width modulation circuit 2.
1 is different from the device of the second embodiment only in that a high-frequency emphasis filter 39 is provided between the first and second devices. In order to avoid duplication of description, the description of the same parts as those in the second embodiment is omitted, and the differences from the second embodiment will be described below.

The high-frequency emphasis filter 39 has an edge portion (X-axis scale 9 in FIG. 11) where the value of the gradation signal applied to the signal electrode 14 by the signal electrode drive circuit 22 changes abruptly.
9 to 100) (the brightness near the X-axis scale 99 to 101 in FIG. 12 is emphasized).
It has a function to reduce the deterioration of the vertical resolution that occurs when a plurality of scanning lines are driven simultaneously.

For example, when the driving method for simultaneously turning on two adjacent scanning electrodes as in the apparatus of the second embodiment is adopted, the resolution in the vertical direction is lowered (see the X-axis scale in FIG. 13). 100 to 101), high-frequency emphasis filter 3
9 is provided, it is possible to reduce resolution deterioration (in the vicinity of the X-axis scale 100 to 102 in FIG. 14).

In the above description, the case where the apparatus of the second embodiment is provided with the high-frequency emphasis filter has been described.
A high-frequency emphasis filter may be provided in the devices of the third and fourth embodiments as well.

Example 6 FIGS. 15 to 17 relate to a flat panel display according to Example 6 of the present invention. FIG. 15 is a front view showing a part of the phosphors 4 arranged on the inner surface of the front glass 1. FIGS. 16A and 16B show a plurality of rows of scan electrodes 13 (in the case where the scan electrodes are distinguished from each other, a row number in parentheses is added after the reference numeral 13,
It is described as "13 (1)", "13 (2)", .... ) And a plurality of columns of signal electrodes 14 (when the signal electrodes are shown to be distinguished from each other, a column number in parentheses is added after the reference numeral 14 to describe as “14 (1)”, “14 (2)”, ... FIG. 17 is an explanatory view showing a combination of phosphors.

The flat-panel display device of Example 6 is different from the conventional device shown in FIGS. 29 to 38 only in the arrangement of the phosphors 4 and the structure of the control electrode section 7, and the other structures are the same as those of the conventional device. Same as the device. In order to avoid duplication of description, the description of the same parts as those of the conventional device is omitted, and the differences from the conventional device will be described below. In addition, in the following description, FIG. 29 to FIG. 32 and FIG. 36 will also be referred to.

As shown in FIG. 15 or FIG. 16, in Example 6, the phosphors 4 were arranged in all rows in the order of red, green and blue in the longitudinal direction of the scanning electrodes 13 (horizontal direction in FIG. 15). They are arranged so as to be repeatedly arranged (in the order of R, G, B). Then, the arrangement of the phosphors 4 in a certain row and the arrangement of the phosphors 4 in the adjacent row are shifted in the longitudinal direction of the scanning electrode 13 by a distance corresponding to one and a half of the width of the phosphors 4. The phosphors 4 in rows are arranged. The reason for arranging in this manner is that the apparent resolution is influenced by the arrangement of the green pixels, and thus the arrangement pitch of the green pixels is narrowed in the horizontal direction (for example, narrower than that in FIG. 34).

In the apparatus of Example 6, the red phosphor, the green phosphor and the blue phosphor which are lined up on the same scanning electrode as surrounded by a solid line or a broken line in FIG. Based on the sampled video signal, the same group of red phosphor, green phosphor,
And a grayscale signal for causing the blue phosphor to emit light.

According to the apparatus of Example 6, the row direction (see FIG.
In the horizontal direction), two green phosphors are included in the width of 3 pixels, and the apparent horizontal resolution is about 1.5 as compared with the conventional device having the phosphor array shown in FIG. Can be

In the above description, the case of non-interlaced driving in which scanning signals are applied in the order of arrangement of the scanning electrodes 13 has been described, but the present invention is not limited to this, and even fields and odd fields are driven alternately. Interlaced drive can also be used, and in this case, the same effect can be obtained. Further, in the sixth embodiment, since the combination of the emission colors of the phosphors is the same in the even field and the odd field, color flicker does not appear, and a white stripe in the horizontal direction can be displayed with a width of one pixel. it can.

Further, the configuration of the sixth embodiment can be incorporated in the apparatus of the first to fifth embodiments.

Embodiment 7 FIGS. 18 to 21 relate to a flat-panel display device according to Embodiment 7 of the present invention. FIG. 18 is an explanatory view showing a combination of phosphors, and FIG. %), FIG. 20 is a waveform diagram showing a scanning signal and a gradation signal applied to obtain the gradation of FIG. 19, and FIG. 21 is a scanning signal applied to obtain the gradation of FIG. FIG. 6 is another waveform diagram showing a gradation signal.

The flat-panel display device of Example 7 is the same as the device of Example 6 except for the display method. In order to avoid duplication of description, description of the same parts as those of the apparatus of the sixth embodiment will be omitted, and the differences from the sixth embodiment will be described below. In the following description, FIGS. 15, 16, 29 to 32,
Also refer to FIG.

In the apparatus of Example 7, the red phosphor, the green phosphor and the blue phosphor which are arranged so as to form an equilateral triangle surrounded by a solid line in FIG. Based on the sampled video signal, the same group of red phosphor, green phosphor,
And a grayscale signal for causing the blue phosphor to emit light.

According to the apparatus of Example 7, the row direction (see FIG.
In the horizontal direction), two green phosphors are included in the width of 3 pixels, and the apparent horizontal resolution is about 1.5 as compared with the conventional device having the phosphor array shown in FIG. Can be

In the above description, the case of non-interlaced driving in which scanning signals are applied in the arrangement order of the scanning electrodes 13 has been described, but the present invention is not limited to this and, for example, even fields and odd fields are alternated. It can also be driven by interlaced driving. In this case, when scanning odd fields, the red phosphors arranged so as to form an equilateral triangle surrounded by a solid line in FIG. 18,
The green phosphor and the blue phosphor are set as one group, and based on the video signals simultaneously sampled at a certain time,
Grayscale signals for causing the red phosphor, the green phosphor, and the blue phosphor of the same group to emit light are generated, and when scanning an even field, they are arranged so as to form an equilateral triangle surrounded by a broken line in FIG. The red phosphor, the green phosphor, and the blue phosphor are set as one group, and the red phosphor, the green phosphor, and the blue phosphor of the same group are made to emit light based on the video signals simultaneously sampled at a certain time point. Generate a gradation signal.

Further, the structure of the seventh embodiment can be incorporated into the apparatus of the first to fifth embodiments.

Example 8 FIG. 22 is a front view showing the arrangement of the phosphors 4 of the flat panel display according to Example 8 of the present invention.

The flat-panel display device of Example 8 is the same as the device of Example 6 except for the arrangement of the phosphors 4. To avoid duplication of description, description of the same configuration as that of the apparatus according to the sixth embodiment is omitted, and the differences from the sixth embodiment will be described below. In addition, in the following description, FIG. 29 to FIG. 33 and FIG. 36 will also be referred to.

In the device of the eighth embodiment, the phosphors 4 are provided in all rows in the longitudinal direction of the scanning electrodes 13 in the green, red,
The scanning electrodes 13 are arranged in the order of green and blue (R, G, B, G), and the arrangement of the phosphors 4 in a certain row and the arrangement of the phosphors 4 in the adjacent row are the lengths of the scanning electrodes 13. The phosphors 4 in each row are arranged so as to be displaced in the direction by a distance corresponding to one width of the phosphors 4.

According to the apparatus of the eighth embodiment, the arrangement pitch of the green pixels is narrower in the horizontal direction than that of the conventional apparatus shown in FIG. 34, and the horizontal resolution similar to that of the apparatus shown in FIG. 35 is obtained. Obtainable. Further, since one line in the row direction (horizontal direction) contains phosphors of red, green, and blue, a white stripe can be displayed with one horizontal line.

In the above description, the case of non-interlaced driving in which scanning signals are applied in the order of arrangement of the scanning electrodes 13 has been described, but the present invention is not limited to this, and for example, even fields and odd fields are alternated. It is also possible to display an image by interlace driving to be driven. In this case, since the combination of the phosphors is the same in the even field and the odd field, color flicker does not appear.

Further, the structure of the eighth embodiment can be incorporated in the apparatus of the first to fifth embodiments.

Embodiment 9 FIG. 23 is a front view showing the arrangement of the phosphors 4 of the flat panel display according to Embodiment 9 of the present invention.

The flat-panel display device of Example 9 is the same as the device of Example 8 except for the arrangement of the phosphors 4. In order to avoid duplication of description, description of the same parts as those of the apparatus of the eighth embodiment will be omitted, and differences from the eighth embodiment will be described below.
In addition, in the following description, FIG. 29 to FIG. 33 and FIG. 36 will also be referred to.

In the device of Example 9, the phosphors 4 are provided in all the rows in the longitudinal direction of the scanning electrodes 13 in green, red, and
The scanning electrodes 13 are arranged such that they are repeatedly arranged in the order of green and blue (in the order of G, R, G, B), and the arrangement of the phosphors 4 in a certain row and the arrangement of the phosphors 4 in the row next thereto. The phosphors 4 in each row are arranged so as to be displaced in the longitudinal direction by a distance corresponding to two widths of the phosphors 4.

According to the device of Example 9, the arrangement pitch of the green pixels is narrower in the horizontal direction than that of the conventional device shown in FIG. 34, and a horizontal resolution similar to that of the device shown in FIG. 35 is obtained. Obtainable. Further, since one line in the row direction (horizontal direction) contains phosphors of red, green, and blue, a white stripe can be displayed with one horizontal line.

In the above description, the case of non-interlaced driving in which scanning signals are applied in the order of arrangement of the scanning electrodes 13 has been described, but the present invention is not limited to this and, for example, even fields and odd fields are alternated. An image can also be displayed by interlaced driving in which driving is performed. In this case, color flicker does not appear because the combination of the colors of the phosphors is the same in the even field and the odd field.

Further, the structure of the ninth embodiment can be incorporated into the apparatus of the first to fifth embodiments.

Embodiment 10 FIG. 24 is a front view showing an arrangement of phosphors 4 of a flat panel display according to Embodiment 10 of the present invention.

The flat-panel display device of Example 10 has the phosphor 4
The apparatus is the same as the apparatus of Example 8 except for the arrangement. In order to avoid duplication of description, description of the same parts as those of the apparatus of the eighth embodiment will be omitted, and differences from the eighth embodiment will be described below.
In addition, in the following description, FIG. 29 to FIG. 33 and FIG. 36 will also be referred to.

In the device of the tenth embodiment, the phosphors 4 are repeatedly arranged in all rows in the longitudinal direction of the scanning electrodes 13 in the order of green, green, red, blue (G, G, R, B). And so that the arrangement of the phosphors 4 in a certain row and the arrangement of the phosphors 4 in the row next thereto are shifted in the longitudinal direction of the scanning electrode 13 by a distance corresponding to two widths of the phosphors 4, respectively. The phosphors 4 in the row are arranged.

According to the device of the tenth embodiment, the arrangement pitch of the green pixels is narrower in the horizontal direction than the conventional device shown in FIG. 34, and a horizontal resolution similar to that of the device shown in FIG. 35 is obtained. Obtainable. Further, since one line in the row direction (horizontal direction) contains phosphors of red, green, and blue, a white stripe can be displayed with one horizontal line.

In the above description, the case of non-interlaced driving in which scanning signals are applied in the order of arrangement of the scanning electrodes 13 has been described, but the present invention is not limited to this, and for example, even fields and odd fields are alternated. An image can also be displayed by interlaced driving in which driving is performed. In this case, color flicker does not appear because the combination of the colors of the phosphors is the same in the even field and the odd field.

The structure of the tenth embodiment is the same as that of the first embodiment.
It is also possible to incorporate it in the devices Nos. 5 to 5.

Embodiment 11 FIGS. 25 to 28 relate to a flat panel display device according to Embodiment 11, and FIG. 25 is a perspective view showing the internal structure of the device.
FIG. 26 is a cross-sectional view of FIG. 25 taken along the line III-III,
FIG. 27 is a sectional view when FIG. 25 or FIG. 26 is viewed in the direction of the line IV-IV, and FIG. 28 is a block diagram showing the configuration of this device.

25 to 28, the same components as those of the conventional apparatus shown in FIGS. 29 to 38 are designated by the same reference numerals.

The apparatus of the eleventh embodiment has an electron emission source 45 (when distinguishing individual electron emission sources, reference numerals are denoted as 45a, 45b, 45c as shown in FIG. 27).
Of the linear hot cathode 48 and the perforated cover electrode 49 covering the linear hot cathode 48 extending in the same direction as the longitudinal direction of the scanning electrode 13, and a voltage is applied to the linear hot cathode 48 to flow a drive current. Only the control method of the hot cathode drive circuit 50 is different from the above-mentioned conventional device.

In the apparatus of the eleventh embodiment, the hot cathode drive circuit 50 applies a predetermined voltage to one or a plurality of linear hot cathodes 48 near one scan electrode 13 to which a scan signal is applied. For example, in FIG. 27, when the scan electrodes 13 are sequentially selected from the left, the scan electrodes _{1 in} the range A 1
3 is selected, a predetermined voltage is applied only to the linear hot cathode 48 of the electron emission source 45a to emit electrons, and while the scan electrode 13 in the range A2 is selected, the electron emission source 45b is selected. The predetermined voltage is applied only to the linear hot cathode 48 of FIG. ₃ to emit electrons, and the predetermined voltage is applied only to the linear hot cathode 48 of the electron emission source 45c while the scanning electrode 13 in the range A ₃ is selected. To emit electrons.

When displaying, in the conventional case where the same predetermined voltage is applied to all the linear hot cathodes 8 at the same time so that electrons are emitted from all the linear hot cathodes 8, the utilization factor of the electrons (phosphor The number of electrons used for light emission of No. 4 / the number of electrons emitted from the linear hot cathode 48 was low, and power wasted wastefully. However, according to the eleventh embodiment, the scanning electrode to which the scanning signal is applied is used. Since electrons are emitted only from one or a plurality of linear hot cathodes 48 close to 13, the utilization rate of electrons becomes high,
Waste of power consumption can be eliminated.

The structure of the eleventh embodiment can be incorporated in the devices of the first to tenth embodiments.

Example 12 In Example 11, the case where the scanning electrodes 13 were selected one by one was explained, but in the apparatus of Example 11, a plurality of scanning electrodes 13 are selected at the same time. In this case, a predetermined voltage is applied to one or a plurality of linear hot cathodes 8 near each scanning electrode 13 to which the scanning signal is applied.

Also in this case, as in the eleventh embodiment, the utilization rate of electrons is increased, and the waste of power consumption can be eliminated.

The structure of the twelfth embodiment can be incorporated in the devices of the first to tenth embodiments.

Example 13 In the apparatus of Example 13, the scanning electrode driving circuit 23 applies a scanning signal to the scanning electrode 13 and the hot cathode driving circuit 50 applies one or more scanning signals to the scanning electrode 13 to which the scanning signal is applied. When a predetermined voltage is applied to the one linear hot cathode 48, one or a plurality of linear hot cathodes near the scan electrode 13 selected by the scan electrode driving circuit 23 and to which the scan signal is applied next. It differs from the eleventh or twelfth embodiment only in that a standby voltage, which is a voltage lower than the predetermined voltage, is applied to 48. Here, the standby voltage is, for example, 1/2 of the predetermined voltage.

In the thirteenth embodiment, since the standby voltage is applied to the linear hot cathode 48 to which the predetermined voltage is applied next, the predetermined voltage is applied and the electrons can be directly emitted.

[0151]

As described above, according to the first aspect of the present invention, the image display surface is divided into the upper block and the lower block, the scanning electrodes of the upper block are sequentially selected by the scanning electrode driving circuit, and the scanning signal is outputted. And the scanning signals in the lower block are sequentially selected at the same time that the scanning signal is applied, and a gradation signal having a pulse width corresponding to the video signal at the scanning electrode position selected in the upper block is applied to the upper block signal. Simultaneously applying to the electrodes, a gradation signal having a pulse width corresponding to the video signal at the scanning electrode position selected in the lower block is applied to the signal electrodes for the lower block to simultaneously display images in the upper block and the lower block. As a result, the utilization rate of electrons is increased, so that the brightness can be improved.

According to the second aspect of the present invention, when the scanning electrodes are divided into the odd field and the even field for interlaced scanning, when the odd field is displayed, the (2m-1) th row in the odd field is displayed. When the same scanning signal is simultaneously applied to the scanning electrode of (2m) and the scanning electrode of the adjacent (2m) row to display two scanning lines at the same time and the even field is displayed, it is in the even field (2m). ) By simultaneously applying the same scan signal to the scan electrode on the second row and the scan electrode on the (2m + 1) th row adjacent thereto, and displaying two scan lines at the same time, the utilization rate of electrons is increased. The brightness can be improved by using a display screen having the same structure as the conventional device.

According to the third aspect of the present invention, when the scanning electrode is divided into an odd field and an even field for interlaced scanning, when the odd field is displayed, the (2m-1) th row in the odd field is displayed. When the same scanning signal is simultaneously applied to the scanning electrodes of and the adjacent scanning electrodes to display a plurality of scanning lines at the same time to display an even field, the (2m) th row in the even field is displayed. By simultaneously applying the same scanning signal to the scan electrodes and the plurality of scan electrodes adjacent thereto, and simultaneously displaying a plurality of scan lines, the utilization rate of electrons is increased. Can be used to further improve the luminance.

Further, according to the invention of claim 4, by emphasizing the brightness of the edge portion where the value of the gradation signal applied to the signal electrode by the signal electrode drive circuit changes rapidly,
It is possible to reduce a decrease in vertical resolution that occurs when a plurality of scanning lines are simultaneously driven.

According to the fifth aspect of the present invention, by simultaneously displaying images in the upper block and the lower block, the utilization rate of electrons is increased and two scanning lines are simultaneously displayed in each block. Thereby, the brightness can be further improved.

According to the sixth aspect of the present invention, by simultaneously displaying the images in the upper block and the lower block, it is possible to increase the utilization rate of electrons and simultaneously display a plurality of scanning lines in each block. Thereby, the brightness can be further improved.

Further, according to the invention of claim 7, by emphasizing the brightness of the edge portion where the value of the gradation signal applied to the signal electrode by the signal electrode drive circuit changes rapidly,
It is possible to reduce a decrease in vertical resolution that occurs when a plurality of scanning lines are driven simultaneously.

Further, according to the invention of claim 8, the light emitting elements are arranged so as to be repeatedly arranged in the order of red, green and blue in the longitudinal direction of the scanning electrode, and the light emitting elements of a certain row and the row next to the light emitting element are arranged. The resolution in the horizontal direction can be increased by arranging the light emitting elements so as to be displaced in the longitudinal direction of the scanning electrodes by a distance corresponding to one and a half of the width of the light emitting elements. Also,
According to the present invention, a white stripe can be displayed with one horizontal line, and color flicker can be prevented in interlaced driving.

According to the ninth aspect of the invention, the light emitting bodies are arranged in such a manner that they are repeatedly arranged in the order of green, red, green and blue in the longitudinal direction of the scanning electrode, and the light emitting bodies in a certain row and the adjacent light emitting body are arranged next to the light emitting bodies. By arranging the light emitters in each row so that the arrangement of the light emitters in each row is displaced in the longitudinal direction of the scanning electrode by a distance corresponding to one or two widths of the light emitters, the horizontal resolution is improved. Can be higher. In addition, a white stripe can be displayed with one horizontal line, and color flicker can be prevented in interlaced driving.

According to the tenth aspect of the present invention, the light emitting bodies are arranged such that the green, green, red, and blue are repeatedly arranged in the longitudinal direction of the scanning electrode, and the light emitting bodies in a certain row and the adjacent light emitting array are arranged. Increasing the horizontal resolution by arranging the light emitters in each row so that the arrangement of the light emitters in the row is displaced in the longitudinal direction of the scanning electrode by a distance corresponding to two widths of the light emitters. You can Further, since one horizontal line includes red, green, and blue light emitters, a white stripe can be displayed in one horizontal line, and color flicker can be prevented in interlaced driving.

According to the eleventh aspect of the present invention, the light emitters are arranged in the longitudinal direction of the scanning electrode in the order of red, green, and blue, and the light emitters in one row and the row next to the light emitter are arranged. By arranging the light emitters in each row so that the arrangement of the light emitters is shifted in the longitudinal direction of the scanning electrode by a distance corresponding to one and a half of the width of the light emitter, the horizontal resolution can be increased. In addition, a white stripe can be displayed with one horizontal line, and color flicker can be prevented in interlaced driving.

According to the twelfth aspect of the invention, the red light emitting body, the green light emitting body, and the red light emitting body, which are lined up adjacent to each other in the longitudinal direction of the scanning electrodes, based on the video signals simultaneously sampled at a certain time point, and Since the grayscale signal of the blue light emitter is generated, a white stripe can be displayed with one horizontal line, and color flicker can be prevented in interlaced driving.

According to the thirteenth aspect of the invention, based on the video signals simultaneously sampled at a certain time point, the two light emitting electrodes which are in contact with each other are arranged in contact with each other so as to form an equilateral triangle. Since the grayscale signals of the body and the blue light emitting body are generated, the resolution in the horizontal direction can be increased.

According to the fourteenth aspect of the present invention, the scan electrode driving circuit divides the scan electrode into an odd field and an even field to perform interlaced scanning, and depending on whether the odd field or the even field is scanned, the positive electrode is scanned. Color flicker can be prevented by changing the combination of the red light emitter, the green light emitter, and the blue light emitter that are arranged in contact with each other to form a triangle.

According to the fifteenth aspect of the invention, the light emitters are arranged in the longitudinal direction of the scanning electrode so as to be repeatedly arranged in the order of green, red, green and blue, and the light emitters in a certain row and the adjacent light emitters are arranged. By arranging the light emitters in each row so that the arrangement of the light emitters in each row is displaced in the longitudinal direction of the scanning electrode by a distance corresponding to one or two widths of the light emitters, the horizontal resolution is improved. Can be higher. Moreover, since the red, green, and blue light emitters are included in one horizontal line,
White stripes can be displayed with one horizontal line, and color flicker can be prevented in interlaced driving.

According to the sixteenth aspect of the present invention, in all the rows, the light emitters are green, green, and green in the longitudinal direction of the scanning electrodes.
The arrangement is such that the red and blue lines are repeatedly arranged, and the arrangement of the light emitters in one row and the arrangement of the light emitters in the row next thereto are displaced by a distance corresponding to two widths of the light emitters in the longitudinal direction of the scanning electrode. As described above, by arranging the light emitters in each row, the resolution in the horizontal direction can be increased. Also,
Since red, green, and blue light emitters are included in one horizontal line, white stripes can be displayed with one horizontal line,
Further, color flicker can be prevented in interlaced driving.

According to the seventeenth aspect of the invention, the electron emission source has a plurality of linear hot cathodes, and a hot cathode drive circuit for applying a voltage to the linear hot cathodes is provided. A linear hot cathode is arranged so as to extend in the same direction as the longitudinal direction, and the hot cathode drive circuit applies a predetermined voltage only to one or more linear hot cathodes close to the scanning electrode to which the scanning signal is applied. Can increase the utilization rate of electrons.

According to the eighteenth aspect of the invention, the linear hot cathode is arranged so as to extend in the same direction as the longitudinal direction of the scan electrode, and the hot cathode drive circuit is close to the scan electrode to which the scan signal is applied. By applying the predetermined voltage only to one or a plurality of linear hot cathodes, the utilization rate of electrons can be increased, so that the power consumption can be reduced.

According to the nineteenth aspect of the invention, the scan electrode driving circuit applies the scanning signal to the plurality of scanning electrodes at the same time, and the hot cathode driving circuit is close to the plurality of scanning electrodes to which the scanning signal is applied. By applying a predetermined voltage to multiple linear hot cathodes, the utilization rate of electrons can be increased,
Power consumption can be reduced.

According to the twentieth aspect of the invention, when the scan electrode drive circuit applies the scan signal to the scan electrodes and the hot cathode drive circuit applies the predetermined voltage to the linear hot cathode, Since the standby voltage lower than the predetermined voltage is applied to the one or more linear hot cathodes near the scan electrode selected by the scan electrode drive circuit and to which the scan signal is applied, the linear hot cathode is preset to the preset voltage. The electrons can be emitted immediately after the voltage is applied.

[Brief description of drawings]

FIG. 1 is a front view of a control electrode portion of a flat panel display device according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing the configuration of the apparatus shown in FIG.

FIG. 3 is an explanatory diagram showing scanning signals in FIG.

4 is a flowchart showing the operation of the apparatus of FIG.

FIG. 5 is a waveform diagram showing a scanning signal and a gradation signal of the flat panel display device according to the second embodiment of the invention.

6 is a flowchart showing the operation of the apparatus of FIG.

FIG. 7 is a waveform diagram showing a scanning signal and a gradation signal of the flat panel display according to the third embodiment of the present invention.

FIG. 8 is a flowchart showing the operation of the apparatus of FIG.

FIG. 9 is a flowchart showing an operation of the flat panel display device according to Embodiment 4 of the present invention.

FIG. 10 is a block diagram showing a configuration of a flat-panel display device according to Embodiment 5 of the present invention.

11 is an explanatory diagram for explaining a function of a high-frequency emphasis filter of the device in FIG.

12 is an explanatory diagram for explaining the function of a high-frequency emphasis filter of the device in FIG.

FIG. 13 is an explanatory diagram of a display screen in the case of a device that does not include a high frequency emphasis filter.

14 is an explanatory diagram of a display screen in the case of the device of FIG. 10 provided with a high-frequency emphasis filter.

FIG. 15 is a front view showing a part of a phosphor of the flat panel display device according to the sixth embodiment.

FIG. 16 is a plan view showing scan electrodes and signal electrodes of the device of Example 6;

FIG. 17 is an explanatory diagram showing a combination of phosphors of Example 6.

FIG. 18 is an explanatory diagram showing a scanning method of the flat panel display device according to the seventh embodiment.

FIG. 19 is an explanatory diagram showing the display brightness of the device of Example 7.

20 is a waveform diagram showing scanning signals and gradation signals applied to obtain the gradation of FIG.

FIG. 21 is another waveform diagram showing a scanning signal and a gradation signal applied to obtain the gradation of FIG.

FIG. 22 is a front view showing a part of the phosphor of the flat-panel display according to the eighth embodiment.

FIG. 23 is a front view showing a part of the phosphor of the flat-panel display according to the ninth embodiment.

FIG. 24 is a front view showing a part of the phosphor of the flat-panel display of Example 10.

FIG. 25 is a perspective view showing the internal structure of the flat panel display device according to the eleventh embodiment.

FIG. 26 is a cross-sectional view when FIG. 25 is viewed in the direction of the line III-III.

FIG. 27 is a cross-sectional view when FIG. 25 or FIG. 26 is viewed in the IV-IV line direction.

FIG. 28 is a block diagram showing the structure of the device of Example 11.

FIG. 29 is a perspective view showing an internal structure of a conventional flat-panel display device.

FIG. 30 is a cross-sectional view when FIG. 29 is viewed in the direction of the line II.

FIG. 31 is an enlarged cross-sectional view of the control electrode unit of FIG. 31.

32 is a cross-sectional view when FIG. 30 or FIG. 31 is viewed in the II-II line direction.

FIG. 33 is a plan view of a control electrode portion of a conventional flat panel display device.

FIG. 34 is a front view showing an example of a phosphor of a conventional flat-panel display device.

FIG. 35 is a front view showing another example of the phosphor of the conventional flat-panel display device.

FIG. 36 is a block diagram showing a configuration of a conventional flat-panel display device.

FIG. 37 is a waveform diagram showing interlaced scanning in the conventional flat-panel display device.

FIG. 38 is an explanatory diagram showing the luminance of each pixel when the scanning shown in FIG. 37 is performed.

[Explanation of symbols]

1 front glass, 2 back plate, 3 airtight container, 4
Illuminant, 5,45 electron emission source, 7 control electrode section,
8,48 linear hot cathode, 11 electron passage hole, 12
Substrate, 13, 13a, 13b Scan electrode, 14,
14a, 14b signal electrodes, 15 insulating parts, 16
Separation band, 17 Separation band, 22, 34, 37 signal electrode drive circuit, 23, 38 scan electrode drive circuit, 3
0 upper block, 31 lower block, 39 high-frequency emphasis filter, 50 hot cathode drive circuit.

[Procedure amendment]

[Submission date] October 14, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0074

[Correction method] Change

[Correction content]

As shown on the right side of FIG. 5, when displaying an even field, it is in the even field (2
scan electrode 13 (2m) in the (m) th row and adjacent (2)
The same scanning signal is simultaneously applied to the scanning electrode 13 (2m + 1) of the (m + 1) th row, and the signal electrode driving circuit 22 corresponds to the video signal of the scanning electrode position of the (2m) th row to each of the N signal electrodes 14. A gradation signal having a pulse width to be applied is applied. Next, the scan electrode 13 (2m + 2) on the (2m + 2) th row in the even field and the adjacent (2m +)
3) Simultaneously applying the same scanning signal to the scanning electrode 13 (2m +3 ) of the row, and by the signal electrode drive circuit 22, to each of the N signal electrodes 14 to the video signal of the scanning electrode position of the (2m + 2) th row. A gradation signal having a corresponding pulse width is applied.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0093

[Correction method] Change

[Correction content]

In the flat panel display device of Example 4, in each of the upper block 30 and the lower block 31,
The same interlaced scanning as in the second embodiment is performed. That is, the scan electrode driving circuit 38 applies a scan signal so that the (M / 2) scan electrodes 13a of the upper block 30 are divided into an odd field and an even field to perform interlaced scanning, and the scan signal of the lower block 31 (M) is applied. / 2) A scanning signal is applied so that the two scanning electrodes 13b are divided into an odd field and an even field for interlaced scanning.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0094

[Correction method] Change

[Correction content]

When displaying an odd field, the scan electrode 13a (2m-1) on the (2m-1) th row in the odd field of the upper block 30 and the adjacent scan electrode 13a (2m) are displayed.
The same scanning signal is applied to the scanning electrodes 13a (2m) of the row at the same time, and the upper block signal electrode driving circuit 34 outputs N signals.
A gray scale signal having a pulse width corresponding to the video signal at the scanning electrode position of the (2m-1) th row is applied to each of the signal electrodes 14a of the book, and the lower block 31 has an odd field (2m-1). Scan electrode 13b of the row {(M / 2)
+ (2m-1)} and the scanning electrode 13b ((M / 2) + (2m)} on the (2m) th row adjacent thereto are simultaneously applied with the same scanning signal, and the lower block signal electrode driving circuit 37 is applied. Thus, a gradation signal having a pulse width corresponding to the video signal at the scanning electrode position of the (2m-1) th row is applied to each of the N signal electrodes 14b.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0095

[Correction method] Change

[Correction content]

Next, the scan electrode 13a (2m + 1) on the (2m + 1) th row in the odd field of the upper block 30 and the scan electrode 13a (2 on the (2m + 2) th row adjacent to the scan electrode 13a (2).
m + 2) and the same scanning signal is simultaneously applied to each of the N signal electrodes 14a by the upper block signal electrode driving circuit 34, and a pulse width corresponding to the video signal at the scanning electrode position of the (2m + 1) th row is applied to the floor. Applying a toning signal,
Scan electrode 13b of the (2m + 1) th row {(M / 2) + (2m + 1)} in the odd field of lower block 31 and scan electrode 13b of the (2m + 2) th row adjacent to it ((M
/ 2) + (2m + 2)} at the same time, and the lower block signal electrode drive circuit 37 corresponds to the video signal at the scanning electrode position of the (2m + 1) th row to each of the N signal electrodes 14b. A gradation signal having a pulse width to be applied is applied.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0096

[Correction method] Change

[Correction content]

When displaying an even field, the scan electrode 13a (2m) on the (2m) th row in the even field of the upper block 30 and the scan electrode 13a (2m + 1) on the (2m + 1) th row adjacent thereto are simultaneously displayed. The same scanning signal is applied, and the upper block signal electrode drive circuit 34 applies N
A gradation signal having a pulse width corresponding to the video signal at the scanning electrode position of the (2m) th row is applied to each of the signal electrodes 14a of the book, and scanning of the (2m) th row in the even field of the lower block 31 is performed. Electrode 13b {(M / 2) + (2
m)} and the scanning electrode 1 in the (2m + 1) th row adjacent to this
3b {(M / 2) + (2m + 1)} are simultaneously applied with the same scanning signal, and the lower block signal electrode drive circuit 37 applies the scanning electrode position of the (2m) th row to each of the N signal electrodes 14b. A gradation signal having a pulse width corresponding to the video signal is applied.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0097

[Correction method] Change

[Correction content]

Next, the scan electrode 13a (2m + 2) on the (2m + 2) th row in the even field of the upper block 30 and the scan electrode 13a (2) on the (2m + 3) th row which is adjacent thereto.
m + 3) and the same scanning signal is simultaneously applied to the signal electrodes driving circuit 34 for the upper block, and each of the N signal electrodes 14a has a pulse width corresponding to the video signal at the scanning electrode position of the (2m + 2) th row. Applying a toning signal,
The (2m + 2) th row scan electrode 13b {(M / 2) + (2m + 2)} in the even field of the lower block 31 and the (2m + 3) th row scan electrode 13b {(M
/ 2) + (2m + 3)} at the same time, and the lower block signal electrode drive circuit 37 applies the video signal at the scanning electrode position of the (2m + 2) th row to each of the N signal electrodes 14b. A gradation signal having a pulse width to be applied is applied.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Name of item to be corrected] 0113

[Correction method] Change

[Correction content]

According to the apparatus of Example 6, the row direction (see FIG.
In the horizontal direction), two green phosphors are included in the width of 3 pixels, and the apparent horizontal resolution is about 1.5 as compared with the conventional device having the phosphor array shown in FIG. It can be doubled .

[Procedure Amendment 8]

[Document name to be amended] Statement

[Name of item to be corrected] 0119

[Correction method] Change

[Correction content]

According to the apparatus of Example 7, the row direction (see FIG.
In the horizontal direction), two green phosphors are included in the width of 3 pixels, and the apparent horizontal resolution is about 1.5 as compared with the conventional device having the phosphor array shown in FIG. It can be doubled .

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Naoto Watanabe No. 1 Baba Institute, Nagaokakyo City, Kyoto Prefecture Mitsubishi Electric Corporation Video System Development Lab. No. 1 Sanryo Electric Co., Ltd. Material Devices Research Laboratory (72) Inventor Takeshi Yamada No. 1 Baba Institute, Nagaokakyo-shi, Kyoto Mitsubishi Electric Corporation Video System Development Laboratory

Claims (20)

[Claims] 1. A flat airtight container having a front glass and a back plate facing the front glass, and a matrix of M rows and N columns (M and N are predetermined natural numbers) on the inner surface of the front glass. Arranged in a
An emitter that emits light when irradiated with electrons, an electron emission source that is provided on the inner surface of the back plate so as to face the emitter, and emits electrons toward the emitter, and an array of the emitters. A substrate having at least a surface having electron passing holes arranged in N columns in M rows corresponding to, and a strip shape on each surface of the substrate on each surface of the electron passing holes. M scan electrodes are provided, N signal electrodes are provided in a strip shape on each of the rows of the electron passage holes on the other surface of the substrate, and the M scan electrodes are provided. A scan electrode drive circuit for sequentially applying a scan signal and a signal electrode drive circuit for applying a gradation signal to the N signal electrodes, and the scan signal is applied to the electrons emitted from the electron emission source. Electrons in a row equipped with scanning electrodes In each of the through holes, a flat display device that allows an image to be displayed by irradiating the light-emitting body with electrons by passing an amount corresponding to the application time of the gradation signal applied to the signal electrode, The N blocks are divided into an upper block including scan electrodes from the first row to the (M / 2) th row and a lower block including scan electrodes from the ((M / 2) +1)} th row to the Mth row. Signal electrodes of N upper blocks provided in the upper block and N lower block signal electrodes provided in the lower block, and the signal electrode drive circuit is provided with the upper block signals. An upper block signal electrode drive circuit for applying a grayscale signal to the electrodes and a lower block signal electrode drive circuit for applying a grayscale signal to the lower block signal electrodes are provided. Scanning The electrodes are sequentially selected to apply the scanning signal, and at the same time, the scanning electrodes in the lower block are also sequentially selected to apply the scanning signal, and the grayscale signal corresponding to the scanning electrode position selected in the upper block is applied to the upper block. The image signal is simultaneously displayed in the upper block and the lower block by applying a grayscale signal corresponding to the scanning electrode position selected in the lower block to the signal electrode for the lower block at the same time as being applied to the signal electrode for the lower block. Flat display device. 2. A flat airtight container having a front glass and a back plate facing the front glass, and a matrix of M rows and N columns (M and N are predetermined natural numbers) on the inner surface of the front glass. Arranged in a
An emitter that emits light when irradiated with electrons, an electron emission source that is provided on the inner surface of the back plate so as to face the emitter, and emits electrons toward the emitter, and an array of the emitters. A substrate having at least a surface having electron passing holes arranged in N columns in M rows corresponding to, and a strip shape on each surface of the substrate on each surface of the electron passing holes. The scanning electrodes are provided in a number of M, the signal electrodes are provided in a strip shape on each of the rows of the electron passage holes on the other surface of the substrate, and the M scanning electrodes are provided. A scan electrode drive circuit for applying a scan signal so as to perform interlaced scanning separately for an odd field and an even field; and a signal electrode drive circuit for applying a gradation signal to the N signal electrodes, The electricity emitted from the electron emission source The child is passed through each of the electron passage holes of the row provided with the scanning electrode to which the scanning signal is applied, by an amount corresponding to the application time of the gradation signal applied to the signal electrode, and the light is emitted to the light emitter. In a flat-panel display device that displays an image by irradiating electrons, when displaying an odd field, the scan electrode (m is a natural number) in the (2m-1) th row in the odd field is adjacent to the scan electrode. The same scanning signal is applied simultaneously to the scanning electrodes of the (2m) th row, and the signal electrode drive circuit applies to each of the N signal electrodes the grayscale signal corresponding to the scanning electrode position of the (2m-1) th row. The operation of applying
When the even field is displayed, the scan electrode of the (2m) th row in the even field and the adjacent scan electrode (2m +
1) Apply the same scanning signal to the scanning electrodes of the row at the same time,
The operation of applying the gradation signal corresponding to the scanning electrode position of the (2m) th row to each of the N signal electrodes by the signal electrode drive circuit is repeatedly performed while increasing m by 1 Flat display device. 3. A flat airtight container having a front glass and a back plate facing the front glass, and a matrix of M rows and N columns (M and N are predetermined natural numbers) on the inner surface of the front glass. Arranged in a
An emitter that emits light when irradiated with electrons, an electron emission source that is provided on the inner surface of the back plate so as to face the emitter, and emits electrons toward the emitter, and an array of the emitters. A substrate having at least a surface having electron passing holes arranged in N columns in M rows corresponding to, and a strip shape on each surface of the substrate on each surface of the electron passing holes. The scanning electrodes are provided in a number of M, the signal electrodes are provided in a strip shape on each of the rows of the electron passage holes on the other surface of the substrate, and the M scanning electrodes are provided. A scan electrode drive circuit for applying a scan signal so as to perform interlaced scanning separately for an odd field and an even field; and a signal electrode drive circuit for applying a gradation signal to the N signal electrodes. Electrons emitted from the emission source Through each of the electron passage holes of the row provided with the scan electrode to which the scan signal is applied, by an amount corresponding to the application time of the gradation signal applied to the signal electrode, and the electron is emitted to the light emitter. In a flat-panel display device that displays an image by irradiating with, when displaying an odd field, a scanning electrode (m is a natural number) on the (2m-1) th row in the odd field and a plurality of adjacent scanning electrodes. An operation in which the same scanning signal is simultaneously applied to the scanning electrodes of the book and the gradation signal corresponding to the scanning electrode position of the (2m-1) th row is applied to each of the N signal electrodes by the signal electrode driving circuit. Is repeatedly performed while incrementing m by 1, and when displaying an even field, the scan electrode of the (2m) th row in the even field and a plurality of scan electrodes adjacent to the scan electrode are the same. To apply the same scan signal, to each of the N number of signal electrodes by the signal electrode driving circuit (2
A flat-panel display device characterized in that the operation of applying a gradation signal corresponding to the scanning electrode position of the (m) th row is repeatedly executed while increasing m by 1. 4. A high-frequency emphasis filter for emphasizing the brightness of an edge portion where the value of the gradation signal applied to the signal electrode by the signal electrode drive circuit changes abruptly. Or the flat-panel display device according to any one of 3). 5. The scan electrode driving circuit divides the scan electrodes of the upper block into odd fields and even fields for interlaced scanning, and scan electrodes of the lower block into interlaced fields of odd fields and even fields. When scanning and displaying the odd field in each of the upper block and the lower block, it is in the odd field (2 m
-1) Simultaneously applying the same scanning signal to the scanning electrode (m is a natural number) on the 1st row and the scanning electrode on the (2m) th row adjacent to the scanning electrode, and the N number of signals are applied by the signal electrode drive circuit The operation of applying the gradation signal corresponding to the scanning electrode position of the (2m-1) th row to each of the electrodes is repeatedly executed while increasing m by 1 to display an even field in each of the upper block and the lower block. When you do, the even field (2
The same scan signal is simultaneously applied to the scan electrode of the (m) th row and the scan electrode of the (2m + 1) th row adjacent thereto, and the (2m) th row is applied to each of the N signal electrodes by the signal electrode drive circuit. 2. The flat-panel display device according to claim 1, wherein the operation of applying the gradation signal corresponding to the scanning electrode position is repeatedly executed while increasing m by 1. 6. The scan electrode driving circuit divides the scan electrodes of the upper block into odd fields and even fields for interlace scanning, and scan electrodes of the lower block into interlaced fields of odd fields and even fields. When scanning and displaying the odd field in each of the upper block and the lower block, it is in the odd field (2 m
-1) Simultaneously applying the same scanning signal to the scanning electrode (m is a natural number) of the row and a plurality of scanning electrodes adjacent thereto, and the signal electrode driving circuit causes each of the N signal electrodes to be applied. When the operation of applying the gradation signal corresponding to the scanning electrode position of the (2m−1) th row is repeatedly executed while increasing m by 1, and even-numbered fields are displayed in each of the upper block and the lower block, In even fields (2
The same scanning signal is simultaneously applied to the m) th scanning electrode and a plurality of scanning electrodes adjacent thereto, and the (2m) th scanning electrode is applied to each of the N signal electrodes by the signal electrode driving circuit. The operation of applying the gradation signal corresponding to the position,
2. The flat panel display device according to claim 1, wherein m is incremented by 1 and is repeatedly executed. 7. A high-frequency emphasis filter for emphasizing the luminance of an edge portion where the value of the gradation signal applied to the signal electrode by the signal electrode drive circuit changes abruptly. Or the flat display device according to any one of 6 above. 8. The luminescent material comprises a red luminescent material, a green luminescent material, and a blue luminescent material that emit red, green, and blue light when irradiated with electrons, respectively, and the luminescent material is provided in all rows. The scanning electrodes are arranged so as to be repeatedly arranged in the order of red, green, and blue in the longitudinal direction, and the arrangement of the luminous bodies in a row and the arrangement of the luminous bodies in the row next thereto are arranged in the longitudinal direction of the scanning electrodes. 8. The flat-panel display device according to claim 1, wherein the light emitters in each row are arranged so as to be displaced by a distance corresponding to one and a half of the width. 9. The luminescent material comprises a red luminescent material, a green luminescent material, and a blue luminescent material that emit red, green, and blue light when irradiated with electrons, respectively. The scanning electrodes are arranged so that they are repeatedly arranged in the order of green, red, green, and blue in the longitudinal direction, and the arrangement of the luminous bodies in one row and the arrangement of the luminous bodies in the row next thereto are arranged in the longitudinal direction of the scanning electrodes. 8. The flat-panel display device according to claim 1, wherein the luminous bodies in each row are arranged so as to be displaced by a distance corresponding to one or two of the widths. 10. The light-emitting body comprises a red light-emitting body, a green light-emitting body, and a blue light-emitting body, which emit red, green, and blue light when irradiated with electrons, respectively, and the light-emitting body is provided in all rows. Green, green, red, and blue are repeatedly arranged in this order in the longitudinal direction of the scan electrode, and the array of the light emitters in one row and the array of the light emitters in the adjacent row emit light in the longitudinal direction of the scan electrode. 8. The flat panel display device according to claim 1, wherein the light emitters in each row are arranged so as to be displaced by a distance corresponding to two body widths. 11. A flat airtight container having a front glass and a back plate opposite to the front glass, and an inner surface of the front glass arranged in a plurality of rows and a plurality of columns. , And a red light emitting body, a green light emitting body, and a blue light emitting body that emit blue light, and an electron emission source that is provided on the inner surface of the back plate so as to face the light emitting body and emits electrons toward the light emitting body. A substrate having at least a surface having electron passage holes arranged in a plurality of rows and a plurality of columns corresponding to the arrangement of the light emitters, and each of the electron passage holes on one surface of the substrate. A plurality of scanning electrodes provided in a strip shape for each row, and a plurality of signal electrodes provided in a strip shape for each column of the electron passage holes on the other surface of the substrate, Scan signals are sequentially applied to the scan electrodes. A scanning electrode drive circuit for applying a grayscale signal to the signal electrode, and a scanning electrode to which the scanning signal is applied to the electrons emitted from the electron emission source. For each of the electron passage holes of the provided rows, a flat display that displays an image by passing an amount corresponding to the application time of the gradation signal applied to the signal electrode and irradiating the light emitter with electrons. In the device, in all rows, the light emitters are arranged so as to be repeatedly arranged in the longitudinal direction of the scanning electrode in the order of red, green, and blue, and an array of light emitters in one row and an array of light emitters in the adjacent row are arranged. 2. The flat-panel display device in which the light-emitting elements in each row are arranged so that the light-emitting elements are displaced in the longitudinal direction of the scanning electrode by a distance corresponding to one and a half of the width of the light-emitting elements. 12. A red light emitting body, a green light emitting body, and a blue light emitting body, which are arranged in the longitudinal direction of the scanning electrodes and are adjacent to each other, emit light based on video signals simultaneously sampled at a certain time point. The flat-panel display device according to claim 8 or 11, wherein the grayscale signal for generating is generated. 13. A red light emitting body, a green light emitting body, and a blue light emitting body arranged in contact with each other so as to form an equilateral triangle in two scan electrodes contacting each other based on image signals simultaneously sampled at a certain time point. 12. The flat-panel display device according to claim 8, wherein the grayscale signal for emitting light is generated. 14. The scan electrode driving circuit divides the scan electrode into an odd field and an even field to perform interlaced scanning, and to scan the odd field or the even field to form the equilateral triangles. 14. The flat-panel display device according to claim 13, wherein the combination of the red light-emitting body, the green light-emitting body, and the blue light-emitting body arranged in contact with each other is changed. 15. A flat airtight container having a front glass and a back plate facing the front glass, and an inner surface of the front glass arranged in a plurality of rows and a plurality of columns, which are respectively irradiated with electrons to emit red and green respectively. , And a red light emitting body, a green light emitting body, and a blue light emitting body that emit blue light, and an electron emission source that is provided on the inner surface of the back plate so as to face the light emitting body and emits electrons toward the light emitting body. A substrate having at least a surface having electron passage holes arranged in a plurality of rows and a plurality of columns corresponding to the arrangement of the light emitters, and each of the electron passage holes on one surface of the substrate. A plurality of scanning electrodes provided in a strip shape for each row, and a plurality of signal electrodes provided in a strip shape for each column of the electron passage holes on the other surface of the substrate, Scan signals are sequentially applied to the scan electrodes. A scanning electrode drive circuit for applying a grayscale signal to the signal electrode, and a scanning electrode to which the scanning signal is applied to the electrons emitted from the electron emission source. For each of the electron passage holes of the provided rows, a flat display that displays an image by passing an amount corresponding to the application time of the gradation signal applied to the signal electrode and irradiating the light emitter with electrons. In the device, in all rows, the light emitters are arranged in the longitudinal direction of the scanning electrode so as to be repeatedly arranged in the order of green, red, green, and blue. 2. A flat-panel display device in which the light emitters in each row are arranged so that the arrangement is shifted in the longitudinal direction of the scanning electrodes by a distance corresponding to one or two widths of the light emitters. 16. A flat airtight container having a front glass and a rear plate facing the front glass, and an inner surface of the front glass arranged in a plurality of rows and a plurality of columns, which are respectively irradiated with electrons to produce red and green respectively. , And a red light emitting body, a green light emitting body, and a blue light emitting body that emit blue light, and an electron emission source that is provided on the inner surface of the back plate so as to face the light emitting body and emits electrons toward the light emitting body. A substrate having at least a surface having electron passage holes arranged in a plurality of rows and a plurality of columns corresponding to the arrangement of the light emitters, and each of the electron passage holes on one surface of the substrate. A plurality of scanning electrodes provided in a strip shape for each row, and a plurality of signal electrodes provided in a strip shape for each column of the electron passage holes on the other surface of the substrate, Scan signals are sequentially applied to the scan electrodes. A scanning electrode drive circuit for applying a grayscale signal to the signal electrode, and a scanning electrode to which the scanning signal is applied to the electrons emitted from the electron emission source. For each of the electron passage holes of the provided rows, a flat display that displays an image by passing an amount corresponding to the application time of the gradation signal applied to the signal electrode and irradiating the light emitter with electrons. In the device, the light emitters are arranged so that they are repeatedly arranged in the longitudinal direction of the scanning electrode in the order of green, green, red, and blue in all rows, and the light emitters in one row and the light emitters in the adjacent row are arranged. 2. A flat-panel display device in which the light-emitting elements in each row are arranged so that and are displaced in the longitudinal direction of the scanning electrode by a distance corresponding to two widths of the light-emitting elements. 17. The electron emission source includes a plurality of linear hot cathodes, which are provided on the inner surface side of the back plate and emit electrons when a predetermined voltage is applied. A hot cathode drive circuit for applying a voltage to the cathode is provided, the linear hot cathode is arranged so as to extend in the same direction as the longitudinal direction of the scan electrode, and the scan electrode to which a scan signal is applied by the hot cathode drive circuit. 17. The flat panel display device according to claim 1, wherein the predetermined voltage is applied only to one or a plurality of the linear hot cathodes that are close to each other. 18. A flat airtight container having a front glass and a back plate facing the front glass, and a light-emitting body arranged on the inner surface of the front glass in a plurality of rows and a plurality of columns to emit light when irradiated with electrons. A plurality of linear hot cathodes that are provided on the inner surface side of the back plate and emit electrons when a predetermined voltage is applied; a hot cathode drive circuit that applies a voltage to the linear hot cathodes; A substrate having at least a surface having an electron passage hole arranged in a plurality of rows and arranged in a plurality of columns corresponding to the arrangement of the light emitters, and each row of the electron passage holes on one surface of the substrate A plurality of scanning electrodes provided in a strip shape, a plurality of signal electrodes provided in a strip shape for each row of the electron passage holes on the other surface of the substrate, and the plurality of Scan signals are sequentially applied to the scan electrodes of An electrode drive circuit, and a signal electrode drive circuit for applying a gradation signal to the plurality of signal electrodes, wherein the linear hot cathode emits when a predetermined voltage is applied by the hot cathode drive circuit. The electron passing through each of the electron passage holes of the row provided with the scanning electrode to which the scanning signal is applied, by an amount corresponding to the application time of the gradation signal applied to the signal electrode, In a flat-panel display device that displays an image by irradiating electrons to the linear hot cathode, the linear hot cathode is arranged so as to extend in the same direction as the longitudinal direction of the scan electrode, and a scan signal is applied by the hot cathode drive circuit. The flat panel display device characterized in that the predetermined voltage is applied to one or a plurality of the linear hot cathodes close to the formed scanning electrodes. 19. The scan electrode driving circuit applies a scanning signal to a plurality of scanning electrodes at the same time, and the hot cathode driving circuit applies a plurality of the linear heat sources close to the plurality of scanning electrodes to which the scanning signal is applied. 19. The flat panel display device according to claim 17, wherein the predetermined voltage is applied to the cathode. 20. When the scan electrode drive circuit applies a scan signal to the scan electrode and the hot cathode drive circuit applies the predetermined voltage to the linear hot cathode, the scan electrode drive circuit is operated next. 20. A standby voltage, which is a voltage lower than the predetermined voltage, is applied to the one or more linear hot cathodes near the scan electrode selected by the circuit and to which the scan signal is applied. The flat-panel display device according to any one of 1.