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US 2003/0227447 A1Published application
Display device
AssigneeNGK Insulators, Ltd.
InventorsYukihisa Takeuchi, Tsutomu Nanataki, Iwao Ohwada, Yasuharu Kuno, Takayoshi Akao
Life of this patent
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Abstract
A display device has drive circuits each having a logic gate for inhibiting the inputting of a data signal from a signal line when unselected and permitting the inputting of a data signal from the signal line when selected, based on a drive signal (select voltage) applied from a select line, a capacitor for holding the output of the logic gate when selected and outputting the held output as a control voltage, and a drive voltage generating circuit for generating a drive voltage for displacing the actuator based on the control voltage from the capacitor.
Claims21
A display device comprising:
- a display unit having actuators arrayed at respective pixels and displaceable for turning on and off the corresponding pixels;
- a plurality of select lines for supplying instructions to select and unselect the pixels;
- a plurality of signals lines for supplying pixel signals to the pixels which have been selected;
- and
- a drive unit having drive circuits arrayed at respective pixels each for driving the corresponding actuator in response to an instruction from one of the select lines and a signal from one of the signal lines;
- each of said drive circuits having:
- a logic gate for inhibiting the inputting of a signal from said signal line when unselected and permitting the inputting of a signal from said signal line when selected, based on a select voltage applied from one of said select lines;
- a capacitor for holding the output of said logic gate when selected and outputting the held output as a control voltage;
- and
- a drive voltage generating circuit for generating a drive voltage for displacing said actuator based on said control voltage.
7 more elements
A display device comprising:
- a plurality of actuators arrayed at respective pixels and displaceable for turning on and off the corresponding pixels;
- a plurality of select lines for supplying select and unselect signals to the pixels;
- a plurality of signals lines for supplying pixel signals to the pixels which have been selected;
- and
- a drive unit having drive circuits arrayed at respective pixels each for driving the corresponding actuator in response to an instruction from one of the select lines and a signal from one of the signal lines;
- each of said drive circuits having:
- a transistor having a drain for being supplied with a signal from one of said signal lines and a gate for being supplied with a signal from one of said select lines, for applying a drive voltage to displace said actuator;
- a capacitor for keeping said drive voltage when unselected at a constant level, said gate of the transistor and said select line being AC-coupled by said capacitor;
- and
- a resistor connected between a junction between said gate of the transistor and said capacitor and the source of said transistor.
7 more elements
A display device comprising:
- a plurality of actuators arrayed at respective pixels and displaceable for turning on and off the corresponding pixels;
- a plurality of select lines for supplying reset, select, and unselect signals to the pixels;
- a plurality of signals lines for supplying pixel signals to the pixels which have been selected;
- and
- a drive unit having drive circuits arrayed at respective pixels each for driving the corresponding actuator in response to an instruction from one of the select lines and a signal from one of the signal lines;
- each of said actuators having a capacitive structure having a pair of electrodes, one of said electrodes being connected to one of the select lines;
- each of said drive circuits having a two-terminal nonlinear device connected between the other electrodes of one of said actuators and one of the signal lines.
4 more elements
A display device comprising:
- a display unit disposed on a first board and having actuators arrayed at respective pixels and displaceable for turning on and off the corresponding pixels;
- and
- a drive unit disposed on a second board and having drive circuits arrayed at respective pixels each for driving the corresponding actuator in response to an input signal;
- said first board and said second board being bonded to each other;
- said second board having at least one vent hole defined therein.
2 more elements
Dependencies are inferred from the claim text.