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61. 发明专利

JPH0316389A DRIVING METHOD FOR PICTURE DISPLAY ELEMENT 失效
公开(公告)号：JPH0316389A
公开(公告)日：1991-01-24
申请号：JP7040190
申请日：1990-03-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HASHIGUCHI JUNPEI , NONOMURA KINZO , MURAI RYUICHI , HAMADA KIYOSHI , KITAO SATOSHI , TAKAHASHI MASAYUKI
IPC分类号： H01J31/12 , G09G1/04 , G09G1/20 , H04N3/28 , H04N5/68
摘要： PURPOSE:To improve picture quality uniformity by controlling variably at least one of an application start time of a drive signal applied to an electron beam quantity control means and an application end time with respect to a drive signal of the electron beam deflection means. CONSTITUTION:A control data corresponding to each electron beam is read sequentially from a memory 60 by a trigger signal (d) having M sets of pulses synchronized with horizontal synchronizing signals H, D during 1H period just before the 1H period desired for picture display, each counter starts counting a system reference clock with a signal (z) synchronized with horizontal drive pulses R, G, B, generates a carry pulse when the preset data is finished for counting, the pulse is fed to video signal memories 26-1-26-M to read R, G, B video digital data. Then the readout video data is fed to a pulse width modulation circuit 62, where the data is converted into an analog with a pulse width corresponding to the data value and the result is fed to an electron beam modulation electrode as R, G, B serial signal (w) to vary the application time of the modulation signal with the control data. Thus, the picture quality is improved.

62. 发明专利

JPH02162891A PICTURE DISPLAY DEVICE 失效
公开(公告)号：JPH02162891A
公开(公告)日：1990-06-22
申请号：JP31744388
申请日：1988-12-15
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HASHIGUCHI JUNPEI , HAMADA KIYOSHI , NONOMURA KINZO , TAKAHASHI MASAYUKI , KITAO SATOSHI
IPC分类号： H01J31/12 , G09G1/20 , H04N3/16 , H04N5/68 , H04N9/16
摘要： PURPOSE:To align light emitting positions in the vertical direction of all light emitting spots at every scanning line by reading held data from a memory with an index signal as a reference, and controlling the turned-on/off condition of beams at read timing. CONSTITUTION:An index signal detecting circuit 23, a beam position signal detecting circuit 24, and a phase difference measuring circuit 26 are provided. With the index signal as the reference, timing data emitted by the light of a raster written into a memory 28 beforehand are read by the same index signal when a picture is practically displayed, and they are used for the impressing timing of a beam converting signal. Thus, the light emitting position of the raster is solely determined by the impressing timing of the beam converting signal, and without the landing dislocation of the beams, the respective rasters can be aligned to the straight line.

63. 发明专利

JPH02100245A ELECTRON TUBE 失效
公开(公告)号：JPH02100245A
公开(公告)日：1990-04-12
申请号：JP25400988
申请日：1988-10-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAHASHI MASAYUKI , HASHIGUCHI JUNPEI , HAMADA KIYOSHI , KITAO SATOSHI , NONOMURA KINZO
IPC分类号： H01J31/12 , H01J31/15
摘要： PURPOSE:To attenuate the vibration and shock given to the stretching means of a linear cathode rapidly and obtain an uniform image having no brightness unevenness by making a flexible insulator or metal into contact with the stretching means. CONSTITUTION:As the material of flat springs 1a, b... as the stretching means of a linear cathode for electron tube, SUS 631 is used. Dampers 2a, b consisting of quartz glass fibers are provided so as to thread through the flat springs 1a, b.... Thus, when any vibration and shock are given to the springs, the dampers 2a, b absorb their dynamic energy to attenuate the vibration, and prevent the vibration from transmitting to the linear cathode electrode 3. Hence, the vibration and shock are attenuated, and an image having no brightness unevenness can be obtained on a picture plane.

64. 发明专利

JPH01302393A COLOR IMAGE DISPLAY 失效
公开(公告)号：JPH01302393A
公开(公告)日：1989-12-06
申请号：JP13326888
申请日：1988-05-31
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HASHIGUCHI JUNPEI , HAMADA KIYOSHI , NONOMURA KINZO , TAKAHASHI MASAYUKI , KITAO SATOSHI
IPC分类号： H01J31/20 , G09G1/20 , G09G1/28 , H01J31/12 , H04N7/18
摘要： PURPOSE:To reduce the capacity of a memory as a storing means by providing a means to store the impressing timing of a luminance modulating signal in corresponding to a scanning line to be arbitrarily restricted and simultaneously, applying stored data as for the scanning lines except for it as they are or after worked. CONSTITUTION:In order to obtain the data of the timing by which an electronic beam impacts each fluorescent material stripe, a phase difference between an index signal and a beam position signal is measured, a setting is executed so as to execute the measurement for every other n-line by a scanning line selecting circuit 66, and the data measured for every other n-line are stored even into a memory 61. In such a way, the means to stored the data is provided only to the scanning line to be especially restricted of an image display area, and as for the scanning lines not to be contained in it, the data stored to the other scanning lines are used as they are, or the arithmetic result of the stored data to the other scanning lines is used. Thus, the number of data to be stored as for all scanning lines can be reduced to a half or below, and the capacity of the memory can be reduced.

65. 发明专利

JPH01292980A DRIVING METHOD FOR IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH01292980A
公开(公告)日：1989-11-27
申请号：JP12200188
申请日：1988-05-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HAMADA KIYOSHI , NONOMURA KINZO , TAKAHASHI MASAYUKI , HASHIGUCHI JUNPEI , KITAO SATOSHI
IPC分类号： H04N5/68 , H04N9/12 , H04N9/30
摘要： PURPOSE:To obtain a stable index signal by cancelling a modulation of an electron beam caused by a modulating signal applied to one of line electrodes or row electrodes by a modulating signal applied to the other electrode, in an arbitrary address on a screen for obtaining an index light emission. CONSTITUTION:A [one line, one row] position is set as an index light emission area. In this state, in order to always obtain a beam of a prescribed value, namely, non-modulation in an image display period, a beam modulating signal 101a applied to the first grid (G1) electrode 13a of the [one row] position is inversed as to its polarity by an inbersion amplifying circuit 102, and a modulation cancelling signal 103 which has been amplified to a prescribed level to a vertical scanning signal and applied to a vertical scanning electrode 12a of the [one line] position. In such a way, the instability of an index signal caused by a modulation of an index light emission by a beam modulating signal 101 can be obviated, and a stable index signal can be obtained.

66. 发明专利

JPH01140543A PLATE-TYPE IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH01140543A
公开(公告)日：1989-06-01
申请号：JP29660587
申请日：1987-11-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KITAO SATOSHI , NONOMURA KINZO , TAKAHASHI MASAYUKI , HASHIGUCHI JUNPEI , HAMADA KIYOSHI
IPC分类号： H01J29/46 , H01J29/04 , H01J31/12
摘要： PURPOSE:To make it possible to deflect electron beams vertically in a wide angle by arranging a part of an electron beam control device group at the opposite side of a luminous device to a linear electron source to use as an electron beam deflecting device, and using electrodes with slit-form opening holes parallel to the linear electrode source at a part of the control device group. CONSTITUTION:The electron emission of a linear cathode 2 is scanned controlling from the upper side to the lower side in order by vertical scan deflecting electrodes 1a, 1b... which are separated to the number half of the scanning lines, and drawn out by a grid group 3. When a potential to make the beam current ON is given to the electrode 1b, a potential to make the current OFF is given to the electrodes 1a and 1c. When the electrodes 1a and 1c are at the equal potential, the electron beam 6a reaches an anode 5 vertically, and when there is any potential difference, the distribution around the cathode is made asymmetric in the vertical direction to the center of the cathode 1b. And when this potential difference is large, the beam passes on a track 6d. Since the openings of the grid group 3 have been slit, the electron beam can reach the anode 5, the deterioration of beam transmissibility can be prevented, and the number of deflecting electrodes can be reduced less than half the scanning lines.

67. 发明专利

JPS63308852A FLAT TYPE IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPS63308852A
公开(公告)日：1988-12-16
申请号：JP14320587
申请日：1987-06-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NONOMURA KINZO , TAKAHASHI MASAYUKI , KITAO SATOSHI , HAMADA KIYOSHI , HASHIGUCHI JUNPEI
IPC分类号： H01J29/46 , H01J31/12
摘要： PURPOSE:To reduce electrode materials so as to decrease a cost of this display device by forming a group of electron beam drawing/controlling electrodes to be divided every linear electron beams in a flat type image display device. CONSTITUTION:Vertical scanning electrodes 12 are disposed at prescribed intervals in the vertical direction V on an insulation supporting plate 11 which forms a back image electrode in a flat type TV receiver. Linear cathodes 10 serving as linear electron sources are disposed at prescribed pitches. A group of electron beam drawing/controlling electrodes 13 to 18 are disposed on the vertical scanning electrodes 12 in this TV receiver. A group of horizontal deflecting electrodes 19 to 21 are formed on pole braces 29, and the group of electron beam drawing/controlling electrodes 13 to 18 are composed to be divided every linear cathodes 10, so that electrode materials are reduced to decrease a cost of this display device.

68. 发明专利

JPS63294188A METHOD FOR DRIVING PLATE TYPE CATHODE-RAY TUBE 失效
公开(公告)号：JPS63294188A
公开(公告)日：1988-11-30
申请号：JP12838187
申请日：1987-05-27
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HAMADA KIYOSHI , TOMII KAORU , HASHIGUCHI JUNPEI , NONOMURA KINZO
IPC分类号： H04N5/68
摘要： PURPOSE:To uniformize the characteristic of a video modulated signal voltage to a beam current of electron beams of numerous electron sources constituting a plate type cathode-ray tube, by successively impressing specific two kinds of correction factors on video signals corresponding to electron beam radiating electron sources, with one kind of factors being impressed by addition and the other kind of factors by multiplication. CONSTITUTION:At intersecting points of each cathode 10 and each vertical scanning electrode 12, electron sources 50a, 50b, 50c, ... are respectively formed and they are successively set to beam radiating states for every fixed period by vertical scanning electrode driving signals 51 which are successively impressed on the vertical scanning electrodes 12. Then, synchronously with the switching of electron beam radiation from the electron sources, electron beams are successively impressed on modulation means by impressing two kinds of correction factors D52a, D52b,... and D56a, D56b,... corresponding to the electron beam radiating electron sources on video signals 54 corresponding to the electron beam radiating electron sources, with one kind of factors being impressed by addition and the other kind of factors by multiplication. Therefore, the electron beam radiated from each electron source can be corrected so that two points on a video signal voltage to beam current characteristic curve can coincide with each other and unevenness in picture caused by the variation of the characteristic can be eliminated.

69. 发明专利

JPS6393289A COLOR PICTURE DISPLAY DEVICE 失效
公开(公告)号：JPS6393289A
公开(公告)日：1988-04-23
申请号：JP23952086
申请日：1986-10-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HASHIGUCHI JUNPEI , HAMADA KIYOSHI , NONOMURA KINZO , TOMII KAORU
IPC分类号： H04N9/24
摘要： PURPOSE:To contrive to improve accuracy in terms of assembling a flat type cathode ray tube by reading an index signal stored in a 1st storage means at a timing that it was stored in a 2nd storage means during each horizontal scan period and using said signal as an index signal for each horizontal scan line. CONSTITUTION:The index signal having a shaped waveform is led and stored in an index memory 53 only during one horizontal scan period where a switch 65 is turned on with the aid of a pulse from a gate pulse generator circuit 57. As for the display start timing in the horizontal direction of a picture display area, all hourly values or some of them are stored in a memory 62. In order to previously store the impression timing of a color modulation signal, contents stored in the index memory 53 are read out every horizontal scan period according to the hourly values stored in the memory 62. Thus a phase difference can be measured is the state of the phases of both signals are surely correspond one vs one, whereby the precise impression timing of the color modulation signal can be obtained.

70. 发明专利

JPS62270993A DRIVER FOR FLAT CRT 失效
公开(公告)号：JPS62270993A
公开(公告)日：1987-11-25
申请号：JP11356386
申请日：1986-05-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HAMADA KIYOSHI , TOMII KAORU , HASHIGUCHI JUNPEI , NONOMURA KINZO
IPC分类号： H04N5/68 , G09G1/20 , G09G1/28 , H04N9/16

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