摘要:
The display device of the present invention is provided with a means (8) for setting the writing pulse width of the attentional light-emitting sub-field wider than the normal writing pulse width at all the gray scale levels in the case where at least two continuous non-light-emitting sub-fields possibly exist before the attentional light-emitting sub-field at a certain gray scale level among all the gray scale levels specified on the basis of the number Z of sub-fields and the weighting of the sub-fields. According to the display device of the present invention, the discharge for writing can be stably executed without reducing the number of sub-fields in one field.
摘要:
A method of driving an AC plasma display panel for carrying out gray-scale display using a structure in which each field consists of a plurality of subfields, each of which includes an initialization period, a write period, and a sustain period. At least in one predetermined subfield out of the plurality of subfields, at least a part of a sustain operation in the sustain period and at least a part of an initialization operation in the initialization period in a subsequent subfield are carried out at the same time. The visibility of black is improved considerably and the contrast can be enhanced greatly.
摘要:
The plasma display panel having brightness display ranges comprising a gradation brightness display range which displays gradation brightness corresponding to the input signals under a preset input signal level and a constant brightness display range which displays a constant peak brightness greater than the maximum brightness corresponding to input signals greater than the preset input signal level. The plasma display panel can provide the gradation display up to the maximum brightness corresponding to the input signals up to the maximum input and provide the constant peak brightness corresponding to the peak level input by adding one additional weighting bit for the higher gradation. Consequently, a high quality brightness display with high mean value of the brightness and sufficiently high peak brightness can be achieved. Furthermore, the plasma display panel enhances the brightness weighting value and the value of .gamma. for the reverse .gamma. correction when the input signals go over the preset value and decrease the values to the original values when the input signals drop below the preset value. The plasma display panel can provide the gradation display up to the maximum brightness corresponding to the input signals up to the maximum input signal and provide the gradation display up to the peak brightness greater than the maximum brightness corresponding to the input signals over the maximum input signal. Consequently, high quality display with high brightness and high contrast without exceeding the maximum permissible power consumption can be achieved.
摘要:
A light inspection device for performing lighting inspection of a display panel contains a circuit board having a driving circuit for a lighting display panel; a conductive chassis that functions as the ground potential of the driving circuit; and a conductive support member fixed to the chassis for fixing the circuit board. The chassis and the support member are joined via soft metal.
摘要:
In a method of driving an AC-type plasma display panel in which a first insulation substrate and a second insulation substrate are disposed so as to be opposed to each other, pairs of scanning electrodes and sustaining electrodes covered with a dielectric layer and a protective layer are arranged on the first insulation substrate and at least data electrodes are arranged on the second insulation substrate so as to be orthogonal to the pairs of scanning and sustaining electrodes, immediately after termination of application of a sustaining pulse voltage to one of the scanning electrodes and the sustaining electrodes, the sustaining pulse voltage is applied to the other.
摘要:
A plurality of scanning electrodes and a plurality of sustaining electrodes parallel to each other are located on an inner face of a first glass substrate. Each of the scanning electrodes and each of the sustaining electrodes form a pair. A dielectric layer and a protection layer are formed on the first glass substrate in this order, covering the electrodes. A plurality of data electrodes perpendicular to the scanning electrodes and the sustaining electrodes are located on an inner face of a second glass substrate which is located opposed to the first glass substrate with a discharge space interposed therebetween. In an AC-type PDP having such a structure, at least one of the plurality of scanning electrodes and the plurality of sustaining electrodes are divided into a plurality of groups, and pulses having different phases are applied to the electrodes in different groups, thereby causing sustaining discharge. The scanning electrodes and the sustaining electrodes may be comb-like with teeth. The comb-like scanning electrodes and the comb-like sustaining electrodes are opposed to each other with a small gap interposed therebetween in the manner that the teeth thereof are in engagement with each other. In such a case, the data electrodes are located opposed to and in a longitudinal direction of the teeth of the scanning electrodes.
摘要:
A display device driving for a gray scale expression, wherein at least a sub-field having the highest luminance value among plural sub-fields is further divided into a plurality of sub-field parts.
摘要:
Disclosed here is a light inspection device for performing lighting inspection of a display panel. With the use of the device, a display panel can be tested under the display condition equivalent to that of a finished panel as a product, which improves accuracy of inspection. The light inspection device contains circuit board (27) having a driving circuit for lighting display panel (21); conductive chassis (25) that functions as the ground potential of the driving circuit; and conductive support member (26) fixed to chassis (25) for fixing circuit board (27). Chassis (25) and support member (26) are joined via soft metal (28).
摘要:
A plurality of scanning electrodes and a plurality of sustaining electrodes parallel to each other are located on an inner face of a first glass substrate. Each of the scanning electrodes and each of the sustaining electrodes form a pair. A dielectric layer and a protection layer are formed on the first glass substrate in this order, covering the electrodes. A plurality of data electrodes perpendicular to the scanning electrodes and the sustaining electrodes are located on an inner face of a second glass substrate which is located opposed to the first glass substrate with a discharge space interposed therebetween. In an AC-type PDP having such a structure, at least one of the plurality of scanning electrodes and the plurality of sustaining electrodes are divided into a plurality of groups, and pulses having different phases are applied to the electrodes in different groups, thereby causing sustaining discharge. The scanning electrodes and the sustaining electrodes may be comb-like with teeth. The comb-like scanning electrodes and the comb-like sustaining electrodes are opposed to each other with a small gap interposed therebetween in the manner that the teeth thereof are in engagement with each other. In such a case, the data electrodes are located opposed to and in a longitudinal direction of the teeth of the scanning electrodes.
摘要:
A plurality of scanning electrodes and a plurality of sustaining electrodes parallel to each other are located on an inner face of a first glass substrate. Each of the scanning electrodes and each of the sustaining electrodes form a pair. A dielectric layer and a protection layer are formed on the first glass substrate in this order, covering the electrodes. A plurality of data electrodes perpendicular to the scanning electrodes and the sustaining electrodes are located on an inner face of a second glass substrate which is located opposed to the first glass substrate with a discharge space interposed therebetween. In an AC-type PDP having such a structure, at least one of the plurality of scanning electrodes and the plurality of sustaining electrodes are divided into a plurality of groups, and pulses having different phases are applied to the electrodes in different groups, thereby causing sustaining discharge. The scanning electrodes and the sustaining electrodes may be comb-like with teeth. The comb-like scanning electrodes and the comb-like sustaining electrodes are opposed to each other with a small gap interposed therebetween in the manner that the teeth thereof are in engagement with each other. In such a case, the data electrodes are located opposed to and in a longitudinal direction of the teeth of the scanning electrodes.