Liquid crystal display apparatus and driving method therefor
AssigneeAdvanced Display Inc.
InventorsSUSUMU TOKONAMI, SUSUMU SHIBATA, HIRONORI AOKI, SHINGO NAGANO
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Abstract
The present invention is directed to a liquid crystal display apparatus including: a timing circuit for operating a shift register within a timing circuit during a vertical blanking period such that a common signal that has been alternated at a cycle of a Single Horizontal period is applied on counter electrodes during the vertical blanking period and such that a storage electrode signal is applied on storage electrodes having a frequency, phase and amplitude identical to those of the common signal.
Claims15
A liquid crystal display apparatus comprising:
- a timing circuit for operating a shift register within a timing circuit during a vertical blanking period such that a common signal that has been alternated at a cycle of a Single Horizontal period is applied on counter electrodes during the vertical blanking period and such that a storage electrode signal is applied on storage electrodes having a frequency, phase and amplitude identical to those of the common signal.
A liquid crystal display apparatus comprises a timing circuit for operating a shift register within the timing circuit during a vertical blanking period such that a source signal that has been alternated at a cycle of a Single Horizontal period is applied on source lines during the vertical blanking period.
A liquid crystal display apparatus comprising a timing circuit in which a polarity inverting signal is at least one inverted during a vertical blanking period such that a variable common signal, which voltage is at least once varied during the vertical blanking period, is generated and applied on counter electrodes, and such that a variable storage electrode signal, which is varied to assume a polarity identical with the variable common signal and by an identical amplitude synchronously with the variable common signal, is generated and applied on storage electrodes.
A liquid crystal display apparatus comprising a timing circuit in which a polarity inverting is at least one inverted during a vertical blanking period such that a signal a variable source signal, which voltage is at least once varied during the vertical blanking period, is generated, and such that the variable source signal is applied on the source lines.
A liquid crystal display apparatus comprising a timing circuit in which Gray level data are generated as data for a line following a last line, and wherein a Gray level source signal is applied on source lines during the vertical blanking period.
A liquid crystal display apparatus comprising:
- (a) a timing circuit in which a common signal and a storage electrode signal having a frequency, phase and amplitude identical to those of the common signal are generated to be of same polarity by fixing a polarity inverting signal either to H or L during each of the vertical blanking periods, and
- (b) wherein a common signal of same polarity is applied on counter electrodes during each of the vertical blanking periods and the storage electrode signal is applied on storage electrodes.
A liquid crystal display apparatus comprising:
- (a) a circuit in which a common signal and storage electrode signal of a frequency, phase and amplitude identical to those of the common signal are generated by amplifying a polarity inverting signal, wherein an intermediate electric potential common signal having a potential that is between a maximum peak value and minimum peak value for an amplitude during a data period is generated by setting an amplifying rate to zero, and wherein an intermediate electric potential storage electrode signal having an intermediate electric potential that is between a maximum peak value and a minimum peak value for the amplitude during the data period synchronously with the intermediate electric potential common signal is generated, and
- (b) wherein the intermediate potential common signal is applied on counter electrodes during the vertical blanking period and the intermediate potential storage electrode signal is applied on storage electrodes during the vertical blanking period.
Method for driving a liquid crystal display apparatus comprising steps of:
- alternating a common signal at a cycle of a Single Horizontal period and applied on counter electrodes, and
- applying a storage electrode signal having a frequency, phase and amplitude identical to those of the common signal on storage electrodes during the vertical blanking period for decreasing effective voltage differences between odd-numbered lines and even-numbered lines and for decreasing luminance differences per gate line.
Method for driving a liquid crystal display apparatus comprising steps of:
- applying a source signal that has been alternated at a cycle of a Single Horizontal period on source lines during a vertical blanking period for decreasing effective voltage differences between odd-numbered lines and even-numbered lines and for decreasing luminance differences per gate line.
Method for driving a liquid crystal display apparatus comprising steps of:
- generating a variable common signal, which voltage is at least once varied during a vertical blanking period,
- applying said variable common signals on counter electrodes,
- generating variable storage electrode signal, which is varied to assume a polarity identical with the variable common signal and an identical amplitude by synchronizing said variable storage electrode signal with the variable common signal, and
- applying said variable storage electrode signal on storage electrodes for decreasing effective voltage differences between odd-numbered lines and even-numbered lines and for decreasing luminance differences per gate line.
Method for driving a liquid crystal display apparatus comprising steps of:
- varying a voltage for a source signal at least once varied during a vertical blanking periods and
- applying said voltage on source lines for decreasing effective voltage differences between odd-numbered lines and even-numbered lines and for decreasing luminance differences per gate line.
Method for driving a liquid crystal display apparatus comprising steps of:
- applying a source signal having a Gray level electric potential on source lines during a vertical blanking period for decreasing effective voltage differences between odd-numbered lines and even-numbered lines and for decreasing luminance differences per gate line.
Method for driving a liquid crystal display apparatus comprising steps of:
- setting a common signal and storage electrode signal to be of same polarity, wherein the common signal is on counter electrodes and the storage electrode signal on storage electrodes during each of the vertical blanking period for decreasing effective voltage differences between odd-numbered lines and even-numbered lines and for decreasing luminance differences per gate line.
Method for driving a liquid crystal display apparatus comprising steps of:
- applying a common signal having an intermediate electric potential that is between a maximum peak value and minimum peak value for an amplitude during a data period on counter electrodes during a vertical blanking period, and
- applying a storage electrode signal having an intermediate electric potential that is between a maximum peak value and minimum peak value for the amplitude during the data period to storage electrodes during the vertical blanking period for decreasing effective voltage differences between odd-numbered lines and even-numbered lines and for decreasing luminance differences per gate line, by synchronizing said storage electrode signal with the common signal.
Dependencies are inferred from the claim text.