摘要:
An image display device, a scan line drive circuit and a driver circuit for the display device capable of driving the display device having a multiplex pixel structure by simple control and utilizing a simplified gate driver. The image display device includes a plurality of pixel electrodes, a plurality of scan lines G for supplying scan signals to turn on and off these pixel electrodes, a pulse generator for generating a shift pulse, buffers B provided corresponding to the respective scan lines G, and a shift register unit in which first and second shift registers SR1 and SR2 are alternately cascade-connected. The shift pulse is propagated through the first and the second shift registers SR1 and SR2 by outputting the shift pulse from the pulse generator to the shift register unit. In this way, the shift pulse is controlled to be propagated between a buffer B to an adjacent buffer B in one horizontal scanning cycle.
摘要:
To supply selection signals to multiplexed pixels efficiently. For a period from time t0 to time t2, first, during a period from time t0 to time t1, a pixel electrode A11 is driven by selecting scan lines Gn+1 and Gn+2, and next, during a period from time t1 to time t2, a pixel electrode B11 is driven by selecting only the scan line Gn+1. Moreover, during the period from time t1 to time t2, scan lines Gn+3 and Gn+4 are also selected, and thus a pixel electrode A12 is driven. After time t2, at least one of the scan lines Gn+3 and Gn+4 is not selected before the pixel electrode A12 is driven by selecting both of the scan lines Gn+3 and Gn+4 during a period from time t4 to time t5. Accordingly, the pixel electrode A12 can be preliminarily charged during the period from time t1 to time t2 and can maintain a potential preliminarily applied thereto until the pixel electrode A12 is driven during the period from time t4 to time t5.
摘要:
An image display device where electrical potential is provided by time divisons from one display signal line to two or more pixels situated adjacent to one another in an LCD matrix. During one horizontal scanning period an electric potential from the display signal line is written to the first and second pixel electrode during a time period TA. During a time period TB an electric potential, which may be different from the electric potential provided in time period TA, is written to the second pixel electrode. Time period TA is adjusted to be longer than time period TB.
摘要:
To easily reduce the occurrence of uneven luminance or flicker in a screen without any manufacturing or cost problems. An output potential waveform outputted from a switching unit 16 of a gate driver IC 7 to a scanning line G is set to have a first waveform having a potential for turning on a switching elements set as its amplitude, and a second waveform connected to the first waveform and oscillated within a period shorter than the second waveform with amplitude smaller than that of the first waveform. Thus, a falling waveform of a scanning signal to be supplied to the switching elements through the scanning line G is inclined beforehand, nonuniformity of the inclination of the falling waveform of the scanning signal supplied to each of the switching elements is reduced, and the occurrence of uneven luminance or flicker in the screen is suppressed.
摘要:
Disclosed is an image display device to secure uniformity of a screen without luminance unevenness by reducing the number of signal lines and enhancing accuracy in voltages to be applied to respective pixels. In an interval after a scan line Gn+2 is set to selection potential until the scan line Gn+2 is set to non-selection potential, a first display signal having first electric potential to be given to a pixel electrode A is supplied to a signal line, whereby the pixel electrode A and a pixel electrode B are provided with the first electric potential. In addition, after the scan line Gn+2 is set to the non-selection potential, a second display signal having second electric potential to be given to the pixel electrode B is supplied to the signal line, whereby the pixel electrode B is provided with the second electric potential. In this event, a variation of compensative potential for offsetting a difference between an electric potential variation corresponding to parasitic capacitance between the pixel electrode A and scan lines Gn+1 and Gn+2, and an electric potential variation corresponding to parasitic capacitance between the pixel electrode B and the scan line Gn+1, is given to the scan lines Gn+1 and Gn+2 for compensation.
摘要:
To supply selection signals to multiplexed pixels efficiently. For a period from time t0 to time t2, first, during a period from time t0 to time t1, a pixel electrode A11 is driven by selecting scan lines Gn+1 and Gn+2, and next, during a period from time t1 to time t2, a pixel electrode B11 is driven by selecting only the scan line Gn+1. Moreover, during the period from time t1 to time t2, scan lines Gn+3 and Gn+4 are also selected, and thus a pixel electrode A12 is driven. After time t2, at least one of the scan lines Gn+3 and Gn+4 is not selected before the pixel electrode A12 is driven by selecting both of the scan lines Gn+3 and Gn+4 during a period from time t4 to time t5. Accordingly, the pixel electrode A12 can be preliminarily charged during the period from time t1 to time t2 and can maintain a potential preliminarily applied thereto until the pixel electrode A12 is driven during the period from time t4 to time t5.
摘要:
A process for supplying display signals from a storage device to a multiplicity of pixel electrodes in an image display apparatus. Display signals are serially stored into the storage device for a significant part of a line of the image display apparatus. After the display signals are stored for the part of the line into the storage device, the display signals are outputted while additional display signals for another part of the line are concurrently stored into the storage device. The outputting step is performed at a faster rate than the concurrent storing step. Consequently, the size of the storage device can be limited.
摘要:
A display device includes: a first substrate having a light extraction plane; a plurality of first electrodes; an organic electroluminescence layer; a second electrode; a second substrate; a sensing electrode allowing an object to be detected; and a driving electrode forming a capacitance with the sensing electrode and allowing the object to be detected. The first electrodes, the organic electroluminescence layer, the second electrode, and the second substrate are provided in this order on the first substrate. The sensing electrode and the driving electrode are provided, in this order from a first substrate side, between the first substrate and the second substrate.
摘要:
A display device includes: a first substrate having a light extraction plane; a plurality of first electrodes; an organic electroluminescence layer; a second electrode; a second substrate; a sensing electrode allowing an object to be detected; and a driving electrode forming a capacitance with the sensing electrode and allowing the object to be detected. The first electrodes, the organic electroluminescence layer, the second electrode, and the second substrate are provided in this order on the first substrate. The sensing electrode and the driving electrode are provided, in this order from a first substrate side, between the first substrate and the second substrate.
摘要:
An active matrix display device has an inspection circuit for inspecting the image quality. The inspection circuit includes a plurality of input terminals for inputting a test signal and a plurality of test transistors connected respectively to the input terminals. Input test signals which are to be sent to sub pixel sections from the individual input terminals are controlled by the associated test transistors to display a desired test screen. The test transistors are preferably amorphous silicon TFTs.