Driving apparatus of electronic ink display device and method therefor
AssigneeLG Electronics Inc.
InventorSeong-Hak Moon
Life of this patent
Estimating the term…
Abstract
Disclosed are a driving apparatus of a passive matrix type electronic ink display device capable of driving the electronic ink display device precisely, improving a contrast of data displayed in the electronic ink display device, and simplifying a manufacturing process according to a simple construction of the electronic ink display device, and a method therefor. For this purpose, the method for driving the electronic ink display device comprises the steps of: applying a data voltage to at least one data line among a plurality of data lines; and applying a scan voltage only to one scan line selected among a plurality of scan lines while the data voltage is applied, and then floating the remaining scan lines other than the selected scan line.
Claims35
A driving method for an electronic ink display device, comprising:
- applying a data pulse to at least one data line among a plurality of data lines, and applying a ground voltage or a scan pulse only to one scan line selected among a plurality of scan lines while the data pulse is applied, wherein scan lines that are not selected assume a floating state while the ground voltage or scan pulse is applied only to the selected scan line;
- and
- simultaneously applying a frame reset pulse to the plurality of data lines and simultaneously applying the ground voltage to the plurality of scan lines while the frame reset pulse is applied, or applying the frame reset pulse to the plurality of scan lines and simultaneously applying the ground voltage to the plurality of data lines while the frame reset pulse is applied.
A driving method for an electronic ink display device, comprising:
- applying a data voltage to at least one data line among a plurality of data lines;
- and
- applying a scan voltage only to one scan line selected among a plurality of scan lines while the data voltage is applied, wherein scan lines that are not selected assume a floating state while the scan voltage is applied only to the selected scan line.
A driving method for an electronic ink display device, comprising:
- applying a data pulse to at least one data line among a plurality of data lines, and applying a ground voltage only to one scan line selected among a plurality of scan lines while the data pulse is applied wherein scan lines that are not selected assume a floating state while the ground voltage is applied only to the selected scan line;
- and
- simultaneously applying a frame reset pulse to the plurality of data lines, and simultaneously applying a ground voltage to the plurality of scan lines while the frame reset pulse is applied.
A driving method for an electronic ink display device, comprising:
- applying a data pulse to at least one data line among a plurality of data lines, and applying a scan pulse only to one scan line selected among a plurality of scan lines while the data pulse is applied;
- applying a ground voltage or the scan pulse only to the one selected scan line, thereafter, applying the ground voltage to the plurality of data lines simultaneously, and then applying a scan line reset pulse to the scan line to which the scan pulse has been applied while the ground voltage is applied;
- and
- applying a frame reset pulse to the plurality of scan lines, and then simultaneously applying the ground voltage to the plurality of data lines while the frame reset pulse is applied.
A driving apparatus of an electronic ink display device, comprising:
- an electronic ink display panel constructed by in chiding a plurality of data lines and a plurality of scan lines;
- a scan driving unit applying a ground voltage only to a scan line selected among the plurality of scan lines;
- and
- a data driving unit applying a data pulse of a predetermined positive voltage, a ground voltage, or a frame reset pulse of a predetermined negative voltage to the plurality of data lines, wherein the scan driving unit includes a plurality of switches each controlled by a switching control signal, the scan driving unit applying the ground voltage through one of said switches only to the selected scan line during a predetermined time and controlling the scan lines that are not selected to assume a floating state while the ground voltage is applied only to the selected scan line.
A driving apparatus of an electronic ink display device, comprising:
- an electronic ink display panel constructed by including a plurality of data lines and a plurality of scan lines;
- a data driving unit applying a data pulse of a predetermined positive voltage or a ground voltage to the plurality of data lines;
- and
- a scan driving unit applying a scan pulse of a predetermined negative voltage, a scan line reset pulse of a fast predetermined positive voltage, or a frame reset pulse of a second predetermined positive voltage only to a scan line selected among the plurality of scan lines,
- wherein the scan driving unit includes a plurality of switches controlled by a switching control signal, and applies the ground voltage only to the selected scan line during a predetermined time according to the switching control signal, and floats the remaining scan lines other than the selected scan line.
Dependencies are inferred from the claim text.