WO2001020590A1 - Afficheur et son procede d'excitation - Google Patents
Afficheur et son procede d'excitation Download PDFInfo
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- WO2001020590A1 WO2001020590A1 PCT/JP2000/005989 JP0005989W WO0120590A1 WO 2001020590 A1 WO2001020590 A1 WO 2001020590A1 JP 0005989 W JP0005989 W JP 0005989W WO 0120590 A1 WO0120590 A1 WO 0120590A1
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- Prior art keywords
- electrode
- electrodes
- electron source
- image display
- substrate
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/123—Flat display tubes
- H01J31/125—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection
- H01J31/127—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection using large area or array sources, i.e. essentially a source for each pixel group
Definitions
- Image display device and driving method of image display device are Image display device and driving method of image display device
- the present invention relates to an image display device and a driving method of the image display device, and in particular, is applied to an image display device having a structure of an electrode, an insulator, and an electrode and using a thin film type electron source that emits electrons in a vacuum. And effective technology. Background art
- a thin-film electron source is an electron-emitting device that uses a hot electron generated by applying a high electric field to an insulator.
- an MIM (Metal-Insulator-Metal) type electron source having a three-layer thin film structure consisting of an upper electrode, an insulating layer and a lower electrode will be described.
- FIG. 13 is a diagram for explaining the operation principle of a MIM type electron source, which is a typical example of a thin film type electron source.
- the current caused by the electrons flowing from the lower electrode 13 to the upper electrode 11 is called the diode current (Id), and the current caused by the electrons emitted in the vacuum 10 is called the emission current (Ie).
- I e / I d) is 1 Z 1 0 3 ⁇ : a L 1 0 5 about.
- the MIM type thin film electron source is described in, for example, Japanese Patent Application Laid-Open No. Hei 9-320456.
- a thin film type electron source is formed in a matrix at an arbitrary position. Since an electron beam can be generated from the electron beam, it can be used as an electron source of an image display device. That is, a thin-film electron source element is arranged for each pixel, the emitted electrons from the element are accelerated in a vacuum, and then the phosphor is irradiated, and the irradiated part of the phosphor emits light to produce a desired image.
- a planar image display device for displaying can be configured.
- Thin-film electron sources have excellent features as electron-emitting devices for image display devices, such as being capable of realizing a high-definition display device because of the excellent straightness of the emitted electron beam, and being easy to handle because they are not easily affected by surface contamination. are doing.
- the thin-film electron source includes a MIM (Metal Insulator—Semiconductor) type lower electrode in addition to the above-mentioned MIM type electron source.
- MIM Metal Insulator—Semiconductor
- An image display device using a thin-film electron source matrix does not use a shadow mask unlike a cathode ray tube (CRT) and does not have a beam deflection circuit. Slightly smaller or comparable to Ding.
- the power consumption of the thin-film electron source matrix by the conventional driving method in the image display device using the thin-film electron source matrix is estimated.
- FIG. 14 is a diagram showing a schematic configuration of a conventional thin-film electron source matrix.
- a thin-film electron source element 301 is formed at each intersection of the row electrode (lower electrode) 310 and the column electrode (upper electrode) 310.
- FIG. 14 shows the case of 3 rows ⁇ 3 columns, in actuality, the number of pixels constituting a display device or the number of sub-pixels in the case of a color display device are thin-film type.
- the electron source element 301 is arranged.
- one pixel is formed by combining the red, blue, and green sub-pixels (sub-pixe l). Those that correspond to sub-pixels are also referred to as “pixels”. In this specification, a pixel or a sub-pixel is also referred to as a “dot”.
- FIG. 15 is a timing chart for explaining a driving method of a conventional image display device.
- a negative polarity pulse (scanning pulse) of amplitude (Vr.w) is applied to one of the row electrodes 310 (selected row electrode) from the row electrode drive circuit 41, and at the same time, the column electrode
- a positive polarity pulse (data pulse) of amplitude (V CC) 1 ) is applied from the drive circuit 42 to some of the column electrodes 3 11 (selected column electrodes).
- the row electrode 310 to be selected that is, the row electrode 310 to which the scan pulse is applied is sequentially selected, and the data pulse applied to the column electrode 311 is also changed corresponding to the row.
- the thin-film electron source element 301 can be operated stably.
- the conventional driving is performed when the capacitance per one thin-film type electron source element 301 is Ce, the number of column electrodes 311 is M, and the number of row electrodes 310 is N.
- the reactive power consumption of the drive circuit by the method.
- Reactive power consumption is the power consumed to charge and discharge the capacitance of the element to be driven, and does not contribute to light emission.
- Vr is the voltage amplitude of the inversion pulse applied to the row electrode 310.
- Pulses are applied N times to the column electrodes during the period of rewriting the screen once (one field period). ⁇ , Extra ⁇ is multiplied. In addition, when a pulse voltage is applied to m of the three column electrodes 311, M is replaced by m in the above equation (4).
- the power consumption of the thin-film type electron source device itself is about 1.6 [W], so the total power consumption is about 44 [W]. This is power consumption that is practically acceptable.
- a feature of an image display device using a thin-film electron source is that a thin image display device can be realized.
- Such a thin display device is used as a portable image display device. In this case, it is desirable that the power consumption be further reduced. Disclosure of the invention
- the present invention has been made to solve the problems of the related art, and an object of the present invention is to provide a technology capable of reducing power consumption in a thin film electron source matrix in an image display device.
- Another object of the present invention is to provide a technique capable of reducing power consumption in a thin film electron source matrix in a method of driving an image display device.
- a row electrode 310 in a non-selected state or a row electrode 310 and a column electrode 311 in a non-selected state are connected to a high impedance. It is characterized by setting to the state.
- the row electrode 310 or the column electrode 311 To set the row electrode 310 or the column electrode 311 to the high impedance state, for example, in the row electrode drive circuit 41 or the column electrode drive circuit 42, the row electrode 310 or the column electrode There is a method such as making the output signal line connected to 311 a floating state.
- FIG. 2 is a diagram showing an equivalent circuit when 11 is fixed to a ground potential.
- the non-selected row electrode 310 and non-selected The circuit network via the selected column electrode 3 1 1 must also be considered.
- the capacitance d (m) between one selected row electrode 310 and m selected column electrodes 311 is represented by the following equation (5).
- Ci (m) ⁇ m H: C e
- Figure 3 is a graph showing how d (m) changes with m.
- the vertical axis represents the output capacitance of all the column electrodes 311 in units of the capacitance C e per pixel.
- the symbol ⁇ indicates the case of the conventional driving method
- the reference symbol indicates the case of the driving method of the present invention.
- Ci (m) becomes maximum at ⁇ ⁇ ⁇ 2, but it is still 1 Z4, which is the maximum value in the case of the conventional driving method.
- the reactive power ( ⁇ ⁇ ) associated with the application of the data pulse can be reduced to 1/4 by the driving method of the present invention.
- the column electrode 3 1 1 in the non-selected state was also set to the high impedance state. Consider the case.
- FIG. 4 shows one row electrode (selected scan line in Fig. 4) 310 selected, and the remaining (N- 1) row electrodes (non-selected scan line in Fig. 4) 310 raised.
- select m column electrodes selected data lines in Fig. 4) 3 1 1 and select (Mm) unselected column electrodes (non-selected data lines in Fig. 4)
- FIG. 3 is a diagram showing an equivalent circuit when 3 1 1 is in a high impedance state.
- Figure 5 is a graph showing how C 2 (m) changes with m.
- the vertical axis represents the output capacitance of all the column electrodes 311 in units of the capacitance C e per pixel.
- ⁇ indicates C 2 (m)
- the reference symbol indicates that only the non-selected scanning electrode is high for comparison. This is the case (d (m)) in the impedance state.
- C 2 (m) is further reduced to 110 or less than d (m).
- the reactive power ( Pc) associated with the application of the data pulse can be reduced to 1/100 or less of the conventional case.
- a certain electrode is prevented from being in a high impedance state.
- the present inventors have found that the occurrence of crosstalk due to the introduction of the high impedance state is caused by the fact that the electrode in the high impedance state has an indefinite voltage value and the number of lit dots around the electrode (that is, the display image) ) And changes in the voltage of adjacent electrodes.
- a thin-film electron source does not emit electrons unless a sufficient current is supplied from an external circuit, that is, it has an aspect as a current driving element. This is the focus.
- the mechanism of electron emission from a thin-film electron source uses a tunnel current generated by an electric field in a tunnel insulating layer as a hot electron, and is voltage-driven in this regard.
- the emission current (I e) is at the range of about 1 0 3 tunneling current, to obtain a desired emission current, it must be supplied the 1 0 3 times the current from external circuitry. For this reason, it has an aspect as a current drive element.
- a plurality of electron sources that have a structure in which a lower electrode, an insulating layer, and an upper electrode are stacked in this order, and that emit electrons from the surface of the upper electrode when a positive voltage is applied to the upper electrode.
- An element and the plurality of electrons A plurality of first electrodes for applying a driving voltage to a lower electrode of the electron source element in a row (or column) direction in the source element; and a column (or row) direction in the plurality of electron source elements.
- FIG. 1 is a diagram for explaining a method for driving an image display device of the present invention
- FIG. 2 is a diagram showing an equivalent circuit for calculating interelectrode capacitance in the method for driving an image display device of the present invention
- 3 is a graph showing a change in inter-electrode capacitance obtained by the equivalent circuit of FIG. 2
- FIG. 4 is a diagram showing an equivalent circuit for calculating the inter-electrode capacitance in the driving method of the image display device of the present invention.
- FIG. 5 is a graph showing a change in interelectrode capacitance obtained by the equivalent circuit of FIG. 4
- FIG. 6 is a part of a thin-film electron source matrix of the electron source plate according to the first embodiment of the present invention.
- FIG. 1 is a diagram for explaining a method for driving an image display device of the present invention
- FIG. 2 is a diagram showing an equivalent circuit for calculating interelectrode capacitance in the method for driving an image display device of the present invention
- FIG. 7 is a plan view showing the positional relationship between the electron source plate and the fluorescent display panel according to the first embodiment of the present invention.
- FIG. 8 is an image display according to the first embodiment of the present invention.
- FIG. 9 is a cross-sectional view of a main part showing the configuration of the apparatus.
- FIG. 10 is a connection diagram showing a state in which a driving circuit is connected to the display panel according to the first embodiment of the present invention.
- FIG. 11 is an output diagram from each driving circuit shown in FIG.
- FIG. 12 is a timing chart showing an example of the waveform of the driving voltage to be output.
- FIG. 12 is a timing chart showing the waveform of the driving voltage output from the row electrode driving circuit and the column electrode driving circuit in the image display device according to Embodiment 2 of the present invention.
- FIG. 13 is a timing chart showing an example of the shape
- FIG. 13 is a diagram for explaining the operation principle of the thin-film electron source
- FIG. 14 is a diagram showing a schematic configuration of a conventional thin-film electron source matrix
- FIG. 6 is a diagram for explaining a driving method of the image display device.
- the image display device is a display panel in which a brightness modulation element of each dot is formed by a combination of a thin film type electron source matrix, which is an electron emission electron source, and a phosphor (the display element of the present invention). ), And a drive circuit is connected to the row electrodes and the column electrodes of the display panel.
- the display panel includes an electron source plate on which a thin-film electron source matrix is formed and a fluorescent display plate on which a phosphor pattern is formed.
- FIG. 6 is a plan view showing a configuration of a part of the thin-film electron source matrices of the electron source plate of the present embodiment
- FIG. 7 is a positional relationship between the electron source plate and the fluorescent display plate of the present embodiment.
- FIG. 8 is a cross-sectional view of a main part showing the configuration of the image display device according to the present embodiment.
- FIG. 8A is a cross-sectional view taken along the line A-B shown in FIGS.
- the same figure (b) shows the CD section line shown in Figs. 6 and 7. It is sectional drawing which follows.
- FIGS. 6 and 7 illustration of the substrate 14 is omitted.
- the scale in the height direction is arbitrary. That is, the lower electrode 13 and the upper electrode bus line 32 have a thickness of several tens of meters or less, and the distance between the substrate 14 and the substrate 110 is about 1 to 3 mm. Also, in the following description, an electron source matrix of 3 rows ⁇ 3 columns will be described, but the actual number of rows and columns on the display panel is as follows: , And thousands of rows.
- a region 35 surrounded by a dotted line indicates an electron emitting portion (the electron source element of the present invention).
- the electron emitting portion 35 is a place defined by the tunnel insulating layer 12, from which electrons are emitted into a vacuum.
- the electron-emitting portion 35 is not shown in the plan view because it is covered with the upper electrode 11, it is shown by a dotted line.
- FIG. 9 is a diagram for explaining the method for manufacturing an electron source plate according to the present embodiment.
- FIG. 9 only one thin-film electron source 301 formed at the intersection of one of the row electrodes 310 and one of the column electrodes 311 shown in FIGS. 6 and 7 is drawn and drawn. However, in practice, a plurality of thin-film electron sources 301 are arranged in a matrix as shown in FIGS.
- FIG. 9 is a plan view
- the left column is a cross-sectional view taken along line AB in the right diagram.
- a conductive film for the lower electrode 13 is formed on an insulating substrate 14 such as glass to a thickness of, for example, 300 nm.
- an aluminum (A 1; hereinafter, referred to as A i) alloy can be used as a material for the lower electrode 13, for example.
- N d A 1-neodymium (N d; hereinafter, referred to as N d) alloy was used.
- the Al alloy film is formed by, for example, a sputtering method or a resistance heating evaporation method.
- the A1 alloy film is processed into a stripe shape by photolithographic resist formation and subsequent etching, thereby forming a lower electrode 13 as shown in FIG. 9 (a). .
- the lower electrode 13 also functions as the row electrode 310.
- the resist used here may be any suitable for etching, and the etching may be wet etching or dry etching.
- a resist is applied and exposed to ultraviolet light to be patterned to form a resist pattern 501 as shown in FIG. 9 (b).
- a quinone diazide positive type resist is used as the resist.
- the formation voltage was set to about 100 V in this anodic oxidation, and the thickness of the protective insulating layer 15 was set to about 140 nm.
- the formation voltage was set to 6 V, and the thickness of the tunnel insulating layer was set to 8 nm.
- a conductive film for the upper electrode bus line 32 is formed, the resist is patterned and etched, and as shown in FIG. An electrode bus line 32 is formed.
- the upper electrode bus line 32 is made of an A1 alloy and has a thickness of about 300 nm.
- the upper electrode bus line 32 may be made of gold (Au) or the like.
- the upper electrode pass line 32 is etched so that the pattern edge is tapered, so that the upper electrode 11 to be formed thereafter is not disconnected due to a step at the edge of the pattern. .
- the upper electrode bus line 32 also functions as the column electrode 311.
- iridium (Ir) having a thickness of l nm, platinum (Pt) having a thickness of 2 nm, and gold (Au) having a thickness of 3 nm are formed in this order by sputtering.
- the laminated film of Ir—Pt—Au is patterned to form an upper electrode 11 as shown in FIG. 9 (f).
- a region 35 surrounded by a dotted line indicates an electron-emitting portion.
- the electron emitting portion 35 is a place defined by the tunnel insulating layer 12, from which electrons are emitted into a vacuum.
- electrons are emitted from the region (electron emission portion 35) defined by the tunnel insulating layer 12, that is, the region defined by the resist pattern 501. .
- the fluorescent display panel of this embodiment includes a black matrix 120 formed on a substrate 110 made of soda glass or the like, and a red (R) green (G) formed in a groove of the black matrix 120. ) ⁇ It is composed of blue (B) phosphors (114A to 114C) and a metal back film 122 formed on them.
- a black matrix 120 is formed on the substrate 110 (see FIG. 8 (b)).
- a red phosphor 114 A, a green phosphor 114 B, and a blue phosphor 114 C are formed.
- the patterning of these phosphors was performed using photolithography in the same manner as used for the phosphor screen of an ordinary cathode ray tube.
- Examples of the phosphor include Y 2 ⁇ 2 S: Eu (P22_R) for red, ZnS: Cu, A1 (P22-G) for green, and ZnS: A for blue. g (P22-B) was used.
- A1 is deposited on the entire substrate 110 to a thickness of 50 to 300 nm to form a metal back film 122.
- the substrate 110 is 400. Heat to about C to thermally decompose organic substances such as filming film and PVA. Thus, the fluorescent display panel is completed.
- the electron source plate manufactured in this way and the fluorescent display plate are sealed using frit glass with a spacer 6 ⁇ interposed therebetween.
- Figure 7 shows the positional relationship between the phosphors (114A to 114C) formed on the fluorescent display panel and the thin-film electron source matrix on the electron source plate.
- the substrate 1 is shown to show the positional relationship between the phosphors (114A to 114C) and the black matrix 120 and the components on the substrate.
- the components on 10 are shown with diagonal lines only.
- the relationship between the electron emitting portion 35, ie, the portion where the tunnel insulating layer 12 is formed, and the width of the phosphor 114 is important.
- the width of the electron-emitting portion 35 is set to the phosphor (114 A to It is designed to be narrower than 1 1 4 C).
- the distance between the substrate 110 and the substrate 14 was about 1 to 3 mm.
- the spacer 60 is inserted to prevent the display panel from being damaged by an external force of the atmospheric pressure when the inside of the display panel is evacuated.
- the spacer 60 has a rectangular parallelepiped shape, for example, as shown in FIG.
- columns 60 are provided every three rows, but the number of columns (arrangement density) may be reduced as long as the mechanical strength can withstand.
- the spacer 60 is made of glass or ceramics, and has a plate or columnar column.
- the spacer 60 does not appear to be in contact with the substrate 14, but is actually in contact with the column electrode 3 11 on the substrate 14.
- a gap is formed by the thickness of the column electrode 311.
- Sealed the display panel was evacuated to 1 X 1 0- 7 T 0 rr about vacuum sealing. Immediately before or immediately after encapsulation, a getter film is formed or a getter material is activated at a predetermined position (not shown) in the display panel in order to maintain a high degree of vacuum in the display panel. .
- a getter film can be formed by high-frequency induction heating.
- the acceleration voltage applied to the metal back 122 can be as high as 3 to 6 KV, Therefore, as described above, a phosphor for a cathode ray tube (CRT) can be used as the phosphor (114A to 114C).
- CRT cathode ray tube
- FIG. 10 is a connection diagram showing a state where a drive circuit is connected to the display panel of the present embodiment.
- the row electrode 310 (lower electrode 13) is connected to the row electrode drive circuit 41, and the column electrode 3 11 (upper electrode bus line 32) is connected to the column electrode drive circuit 42.
- each drive circuit (41, 42) and the electron source plate may be, for example, a tape carrier package crimped with an anisotropic conductive film, or each drive circuit (41, 4).
- the semiconductor chip constituting 2) is formed by chip-on-glass or the like directly mounted on the substrate 14 of the electron source plate.
- An acceleration voltage of about 3 to 6 KV is constantly applied to the metal pack film 122 from the acceleration voltage source 43.
- FIG. 11 is a timing chart showing an example of the waveform of the drive voltage output from each drive circuit shown in FIG.
- the dotted line indicates a high impedance output.
- the output impedance should be about 1 to 10 ⁇ . In this embodiment, it is set to 5 ⁇ .
- the ⁇ th row electrode 310 is R n
- the mth column electrode 311 is Cm
- the dot at the intersection of the nth row electrode 310 and the mth column electrode 311 Is represented by (n, m).
- the phosphor (114A to 114C) does not emit light.
- the driving voltage of (VRI) from the row electrode driving circuit 41 to the row electrode 3 10 of R 1 is applied to the column electrode 3 11 of (Cl, C 2), and the column electrode driving circuit 4 2 (V C1 ) is applied.
- the emitted electrons are accelerated by the voltage applied to the metal back film 122, and then collide with the phosphor (114A to 114C), thereby causing the phosphor (114A to 1 1 4 C) to emit light.
- the row electrodes 310 of the other (R 2, R 3) are in a high impedance-dance state, so that no electrons are emitted regardless of the voltage value of the column electrodes 311, and the corresponding phosphor ( Neither 114 A to 114 C) emit light.
- V R2 5 V
- the life characteristics of the thin-film electron source can be improved by applying a voltage (inversion pulse) of the opposite polarity to that during electron emission.
- the vertical retrace period of the video signal is used as the period for applying the inversion pulse (t4 to t5, t8 to t9 in FIG. 11), the consistency with the video signal is good.
- the row electrodes 310 in the non-selected state are set to the high impedance state, so that the power consumption can be reduced as described above.
- the display panel used in the image display device according to the second embodiment of the present invention, and the method of connecting the display panel to the drive circuit are the same as those in the first embodiment.
- FIG. 12 is a timing chart showing an example of the waveform of the drive voltage output from the row electrode drive circuit 41 and the column electrode drive circuit 42 in the image display device according to the second embodiment of the present invention.
- an acceleration voltage of about 3 to 6 KV is constantly applied to the metal back film 122 from the acceleration voltage source 43.
- the output impedance may be about 1 to 10 1 ⁇ , and in the present embodiment, it is set to 5 ⁇ .
- the n-th row electrode 3 10 is R n
- the m-th column electrode 3 11 is 111
- the n-th row electrode 3 10 and the m-th column electrode 3
- the dot at the intersection with 1 be represented by (n, m).
- no voltage is applied to any of the electrodes, so that no electrons are emitted, and therefore, the phosphor (114A to 114C) does not emit light.
- the driving voltage of (Vm) from the row electrode driving circuit 41 to the row electrode 310 of R1 is applied to the column electrode 311 of (Cl, C2), and the column electrode driving circuit 4 A drive voltage of 2 to (V cl ) is applied.
- V C1 — Vm a voltage (V C1 — Vm) is applied between the upper electrode 11 and the lower electrode 13 of the dots (1, 1) and (1, 2), the voltage of (V C1 — V R1 ) If the voltage is set to be equal to or higher than the electron emission start voltage, electrons are emitted into vacuum from these two-dot thin-film electron sources.
- the emitted electrons are accelerated by the voltage applied to the metal back film 112, and then collide with the phosphor (114A ⁇ 114C), thereby causing the phosphor (114A ⁇ 1 1 4 C) to emit light.
- a drive voltage of ( VR1 ) is applied from the row electrode drive circuit 41 to the row electrode 310 of R2 , and the column electrode drive circuit 42 is applied to the column electrode 31 of C1.
- a voltage of (V C1 ) is applied from the (2, 1) lights up.
- all the row electrodes 3 10 are connected to the row electrode drive circuit 41 from (VR 2 ).
- a driving voltage of 0 V is applied from the column electrode driving circuit 42 to all the column electrodes at the same time.
- the life characteristics of the thin-film electron source can be improved by applying a voltage (inversion pulse) of the opposite polarity to that during electron emission.
- the vertical retrace period of the video signal is used as the period for applying the inversion pulse (t4 to t5, t8 to t9 in FIG. 12), the consistency with the video signal is good.
- the row electrode 311 in the non-selected state are set to the high impedance state.
- the power consumption can be further reduced as compared with 1.
- the image display device and the method of driving the same according to the present invention are particularly useful in an image display device using a thin-film electron source that emits electrons in a vacuum, by reducing the reactive power involved in driving the thin-film electron source array and reducing power consumption.
- This technology realizes a technology that can reduce emissions, and has great industrial applicability.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/031,377 US7116291B1 (en) | 1999-09-09 | 2000-09-04 | Image display and method of driving image display |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP11/256246 | 1999-09-09 | ||
JP25624699A JP3831156B2 (ja) | 1999-09-09 | 1999-09-09 | 画像表示装置および画像表示装置の駆動方法 |
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WO2001020590A1 true WO2001020590A1 (fr) | 2001-03-22 |
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PCT/JP2000/005989 WO2001020590A1 (fr) | 1999-09-09 | 2000-09-04 | Afficheur et son procede d'excitation |
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US (1) | US7116291B1 (ja) |
JP (1) | JP3831156B2 (ja) |
KR (1) | KR100750026B1 (ja) |
CN (1) | CN1178190C (ja) |
TW (1) | TW476053B (ja) |
WO (1) | WO2001020590A1 (ja) |
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KR100493678B1 (ko) * | 2001-11-29 | 2005-06-03 | 엘지전자 주식회사 | 평판 디스플레이 소자 구동방법과 장치 |
KR100493669B1 (ko) * | 2001-11-29 | 2005-06-03 | 엘지전자 주식회사 | 평판 디스플레이 소자 구동방법과 장치 |
JP2003308798A (ja) | 2002-04-17 | 2003-10-31 | Toshiba Corp | 画像表示装置および画像表示装置の製造方法 |
KR100469391B1 (ko) * | 2002-05-10 | 2005-02-02 | 엘지전자 주식회사 | 메탈-인슐레이터-메탈 전계방출 디스플레이의 구동회로 및방법 |
KR100874452B1 (ko) * | 2002-11-26 | 2008-12-18 | 삼성에스디아이 주식회사 | 전계 방출 표시 장치 및 그 구동 방법 |
JP4074207B2 (ja) * | 2003-03-10 | 2008-04-09 | 株式会社 日立ディスプレイズ | 液晶表示装置 |
JP2004287118A (ja) | 2003-03-24 | 2004-10-14 | Hitachi Ltd | 表示装置 |
WO2005054932A2 (en) * | 2003-11-14 | 2005-06-16 | Uni-Pixel Displays, Inc. | Simple matrix addressing in a display |
US7317433B2 (en) * | 2004-07-16 | 2008-01-08 | E.I. Du Pont De Nemours And Company | Circuit for driving an electronic component and method of operating an electronic device having the circuit |
US8847861B2 (en) | 2005-05-20 | 2014-09-30 | Semiconductor Energy Laboratory Co., Ltd. | Active matrix display device, method for driving the same, and electronic device |
FR2907959B1 (fr) * | 2006-10-30 | 2009-02-13 | Commissariat Energie Atomique | Procede de commande d'un dispositif de visualisation matriciel a source d'electrons a consommation capacitive reduite |
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JPH02184890A (ja) * | 1989-01-12 | 1990-07-19 | Matsushita Electric Ind Co Ltd | マトリックス表示装置 |
JPH08305317A (ja) * | 1995-04-28 | 1996-11-22 | Futaba Corp | 画像表示装置の駆動方法および駆動回路 |
US5600343A (en) * | 1992-11-13 | 1997-02-04 | Commissariat A L'energie Atomique | Multiplexed matrix display screen and its control process |
JP2000206925A (ja) * | 1999-01-13 | 2000-07-28 | Sony Corp | 平面型表示装置 |
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JPS628340A (ja) | 1985-07-04 | 1987-01-16 | Matsushita Electric Ind Co Ltd | 光学的記録再生装置 |
JP3044435B2 (ja) * | 1993-04-05 | 2000-05-22 | キヤノン株式会社 | 電子源及び画像形成装置 |
JPH08328505A (ja) | 1995-05-26 | 1996-12-13 | Futaba Corp | 画像表示装置の駆動装置 |
JP3863325B2 (ja) * | 1999-09-10 | 2006-12-27 | 株式会社日立製作所 | 画像表示装置 |
JP3915400B2 (ja) * | 2000-11-28 | 2007-05-16 | 株式会社日立製作所 | 画像表示装置及び画像表示装置の駆動方法 |
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1999
- 1999-09-09 JP JP25624699A patent/JP3831156B2/ja not_active Expired - Fee Related
-
2000
- 2000-09-04 US US10/031,377 patent/US7116291B1/en not_active Expired - Fee Related
- 2000-09-04 CN CNB008104379A patent/CN1178190C/zh not_active Expired - Fee Related
- 2000-09-04 WO PCT/JP2000/005989 patent/WO2001020590A1/ja active Application Filing
- 2000-09-04 KR KR1020027000763A patent/KR100750026B1/ko not_active IP Right Cessation
- 2000-09-07 TW TW089118361A patent/TW476053B/zh not_active IP Right Cessation
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JPH02184890A (ja) * | 1989-01-12 | 1990-07-19 | Matsushita Electric Ind Co Ltd | マトリックス表示装置 |
US5600343A (en) * | 1992-11-13 | 1997-02-04 | Commissariat A L'energie Atomique | Multiplexed matrix display screen and its control process |
JPH08305317A (ja) * | 1995-04-28 | 1996-11-22 | Futaba Corp | 画像表示装置の駆動方法および駆動回路 |
JP2000206925A (ja) * | 1999-01-13 | 2000-07-28 | Sony Corp | 平面型表示装置 |
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NL1017465C2 (nl) * | 2000-11-28 | 2004-10-26 | Hitachi Ltd | Beeldschermtoestel dat gebruik maakt van luminantie-modulatie elementen. |
Also Published As
Publication number | Publication date |
---|---|
KR20020032531A (ko) | 2002-05-03 |
US7116291B1 (en) | 2006-10-03 |
CN1361908A (zh) | 2002-07-31 |
JP3831156B2 (ja) | 2006-10-11 |
KR100750026B1 (ko) | 2007-08-16 |
JP2001083907A (ja) | 2001-03-30 |
TW476053B (en) | 2002-02-11 |
CN1178190C (zh) | 2004-12-01 |
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