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US 2026/0087997 A1Published application
Low-power active matrix display with row and/or data driver energy recycling techniques
OwnerSheida GOHARDEHI, Manoj SACHDEVinventors
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Abstract
The disclosure is directed at energy and/or power recycling techniques for use with portable displays in order to extend battery life for portable displays.
Claims8
A system for recycling energy in an active matrix display comprising:
- an array of pixels, the array of pixels arranged in an N x M configuration where N represents a number of pixel rows and M represents a number of pixel columns;
- a set of data lines, each data line associated with an individual pixel column;
- a set of row lines, each row line associated with an individual pixel row;
- a set of row capacitors, each row capacitor associated with one of the set of row lines;
- a set of switches, each switch associated with one of the set of row lines;
- and
- a signal generator for generating and transmitting a switch enable signal to at least one of the set of switches to isolate its associated row line for a period of time whereby, during the period of time, charge stored in the row capacitor associated with the same row line is passed from the associated row line to a row capacitor of the another of the set of row lines.
4 more elements
A system for recycling energy in an active matrix display comprising:
- an array of pixels, the array of pixels arranged in an N x M configuration where N represents a number of pixel rows and M represents a number of pixel columns;
- a set of data lines, each data line associated with an individual pixel column;
- a set of row lines, each row line associated with an individual pixel row;
- a set of data line capacitors, each data line capacitor associated with one of the set of data lines;
- a set of data line switches, each data line switch associated with one of the set of data lines;
- a set of DRAM cells, each of the set of DRAM cells associated with one of the set of data lines;
- a capacitor bank connected to each of the set of data lines;
- and
- a signal generator for generating and transmitting a switch enable signal to at least one of the set of data line switches to isolate its associated data line for a period of time whereby, during the period of time, charge is shared between the data line capacitor of the associated data line and the capacitor bank.
6 more elements
A method of row line energy recycling for an N×M active matrix display comprising:
- storing new data on a data line;
- generating a row switch enable signal for a row switch to isolate a row line associated with the row switch;
- sharing charge stored in a row line capacitor associated with the row line associated with the row switch with another row line within the N×M active matrix;
- repeating the generating and sharing for each row line that intersects with the data line until the generating and sharing has been performed on each row within the N×M active matrix.
1 more element
Dependencies are inferred from the claim text.