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US 10,872,559 B2Granted
Display panel and method for electrically-isolating light emitting diode in display panel
AssigneeLG Display Co., Ltd.
InventorShin-Bok Lee
Life of this patent
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Abstract
The present disclosure relates to a display panel and a method for electrical-isolation of a light-emitting diode in the display panel. In one embodiment, a display panel includes an element region contained in each sub-pixel, wherein two or more light-emitting diodes are arranged in the element region; and two or more e-fuses respectively connected to the two or more light-emitting diodes, wherein at least one of the two or more e-fuses has blown; and two or more e-fuse transistors respectively connected to the two or more e-fuses.
Claims15
A display panel, comprising:
- sub-pixels including driving transistors for driving light-emitting diodes;
- scan signal lines and light-emission control signal lines connected to the sub-pixels respectively and extending in a first direction of the display panel;
- data lines connected to the sub-pixels respectively and extending in a second direction of the display panel, the second direction being transverse to the first direction;
- element regions, wherein each sub-pixel has each element region, wherein at least two light-emitting diodes are arranged in each element region;
- a plurality of e-fuses, wherein at least two e-fuses are arranged in each element region and are connected to the at least two light-emitting diodes respectively, wherein at least one of the at least two e-fuses has blown;
- and
- a plurality of e-fuse transistors, wherein at least two e-fuse transistors are connected to the at least two e-fuses respectively,
- wherein a gate node of each e-fuse transistor is connected to one of the scan signal line or the light-emission control signal line or optionally an e-fuse scan signal line extending in the first direction;
- and
- wherein all of source nodes of the two or more e-fuse transistors are connected to a signal line extending in the second direction.
7 more elements
A display panel, comprising:
- sub-pixels including driving transistors for driving light-emitting diodes;
- scan signal lines and light-emission control signal lines connected to the sub-pixels respectively and extending in a first direction of the display panel;
- data lines connected to the sub-pixels respectively and extending in a second direction of the display panel, the second direction being transverse to the first direction;
- element regions, wherein each sub-pixel has each element region, wherein N light-emitting diodes are arranged in each element region;
- a plurality of e-fuses, wherein N e-fuses are arranged in each element region and are connected to the N light-emitting diodes respectively, wherein N−1 of the e-fuses have blown;
- and
- a plurality of e-fuse transistors, wherein N e-fuse transistors are connected to the N e-fuses respectively,
- wherein a gate node of each e-fuse transistor is connected to one of the scan signal line or the light-emission control signal line or optionally an e-fuse scan signal line extending in the first direction;
- wherein all of source nodes of the two or more e-fuse transistors are connected to the a signal line extending in the second direction;
- and
- wherein N is a natural number greater than 1.
8 more elements
A method for electrically-isolating a light-emitting diode in a display panel, the method comprising:
- reading, by a timing controller, a readout information about a light-emitting diode to be electrically-isolated among a plurality of light-emitting diodes in each sub-pixel;
- applying, by the timing controller, a signal to either a first scan signal line, a first light-emission control signal line, or an e-fuse scan signal line based on the readout information to turn on an e-fuse transistor corresponding to the light-emission diode to be electrically-isolated;
- and
- applying, by the timing controller, a signal for blowing an e-fuse connected to the e-fuse transistor to a signal line connected to a source node of the e-fuse transistor, thereby to blow the e-fuse.
1 more element
Dependencies are inferred from the claim text.