Shift register, gate driver circuit, x-ray detection panel, and x-ray detector
AssigneeLG Display Co., Ltd.
InventorsChanYong JUNG, MoonSoo KANG, ChangMin WOO
Life of this patent
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Abstract
An X-ray detection panel and a gate driver circuit driving gate lines disposed on the X-ray detection panel are discussed. A high-level scanning signal is output to the gate lines before X-rays are input to the X-ray detection panel, and a low-level scanning signal is input to the gate lines during an X-ray incidence period in which electrical charges are generated in pixels. Gate driving for accurate X-ray reading is enabled. The gate driver circuit is provided as a gate-in-panel (GIP) using transistors operating in response to an X-ray incidence signal. An X-ray detection panel that is able to accurately read X-rays can be provided.
Claims16
An X-ray detection panel comprising:
- a plurality of gate lines;
- a plurality of data lines intersecting the plurality of gate lines;
- a plurality of pixels comprising areas defined by the intersection of the plurality of gate lines and the plurality of data lines;
- a gate driver circuit outputting a scanning signal to the plurality of gate lines;
- a readout circuit detecting signals from the plurality of data lines;
- and
- a controller controlling the gate driver circuit and the readout circuit, and outputting an X-ray incidence signal to the gate driver circuit,
- wherein the gate driver circuit outputs a first-level scanning signal to the plurality of gate lines during at least a portion of a first period before the X-ray incidence signal is input, and outputs a second-level scanning signal to the plurality of gate lines during a second period in which the X-ray incidence signal is input.
A gate driver circuit comprising:
- a first shift register outputting a scanning signal to a first gate line;
- and
- a second shift register outputting a scanning signal to a second gate line,
- wherein the first shift register and the second shift register output a first-level scanning signal to the first gate line and the second gate line, respectively, during at least a portion of a first period before an X-ray incidence signal is input, and simultaneously output a second-level scanning signal to the first gate line and the second gate line during a second period in which the X-ray incidence signal is input.
A shift register comprising:
- a pull-up transistor controlling a first-level scanning signal to be output to an output terminal;
- a pull-down transistor controlling a second-level scanning signal to be output to the output terminal;
- a first transistor connected to the output terminal;
- and
- a second transistor connected to a gate node of the pull-up transistor,
- wherein the first transistor and the second transistor are turned on simultaneously during a period in which an X-ray incidence signal is input and are turned off except for the period in which the X-ray incidence signal is input.
An X-ray detector comprising:
- a panel provided with a plurality of gate lines, a plurality of data lines, and a plurality of pixels;
- a gate driver circuit outputting a scanning signal to the plurality of gate lines;
- a readout circuit detecting signals from the plurality of data lines;
- and
- a controller controlling the gate driver circuit and the readout circuit, and outputting an X-ray incidence signal to the gate driver circuit,
- wherein the gate driver circuit outputs a first-level scanning signal to the plurality of gate lines during at least a portion of a first period before the X-ray incidence signal is input, and outputs a second-level scanning signal to the plurality of gate lines during a second period in which the X-ray incidence signal is input.
Dependencies are inferred from the claim text.