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US 2025/0046272 A1Published application
Device and method for measuring overshoot without distortion in display
AssigneeLG Electronics Inc.
InventorsDokyun KIM, Seunghyun YOO
Life of this patent
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Abstract
The present disclosure provides a method and a device for accurately determining a driving level of overdrive by accurately determining a reference luminance for measuring an overshoot degree of a display device. The present disclosure provides a device and a method for accurately determining the driving level of the overdrive by accurately determining the reference luminance using only a rise slope before overshoot occurs and an overshoot slope purely contributed by the overshoot when measuring the overshoot degree.
Claims20
A method of transmitting a V2X message in a wireless communication system supporting vehicle-to-everything (V2X) communication, the method performed by a first UE comprising:
- A method for operating a display device, the method comprising:
- outputting a test motion picture by a display panel of the display device;
- receiving, from a camera device configured to capture the output test motion picture, information of a graph of a luminance sensed by the camera device for the number of camera pixels of the camera device in relation to the test motion picture, wherein an x axis of the graph indicates the number of camera pixels and a y axis of the graph indicates a value of the luminance, and the graph is constituted by a first portion composed only of a rise slope before overshoot occurs, and a second portion in which the rise slope and an overshoot slope are combined;
- determining a first slope value for the rise slope in the first portion of the graph;
- determining a second slope value for the combination of the rise slope and the overshoot slope in the second portion in the second portion of the graph;
- determining a third slope value for the overshoot slope by subtracting the first slope value from the second slope value;
- determining an LH value of a first basic luminance based on the third slope value;
- determining an overshoot value related to the overshoot based on the LH value;
- determining an overdrive value related to the overshoot based on the overshoot value;
- and
- performing overdrive based on the overdrive value by a display driver of the display device.
8 more elements
A display device comprising:
- a display panel;
- a display driver;
- a transceiver;
- a memory;
- and
- at least one processor,
- wherein the at least one processor is configured to
- output a test motion picture by the display panel,
- receive, from a camera device configured to capture the output test motion picture, information of a graph of a luminance sensed by the camera device for the number of camera pixels of the camera device in relation to the test motion picture, wherein an x axis of the graph indicates the number of camera pixels and a y axis of the graph indicates a value of the luminance, and the graph is constituted by a first portion composed only of a rise slope before overshoot occurs, and a second portion in which the rise slope and an overshoot slope are combined,
- determine a first slope value for the rise slope in the first portion of the graph,
- determine a second slope value for the combination of the rise slope and the overshoot slope in the second portion in the second portion of the graph,
- determine a third slope value for the overshoot slope by subtracting the first slope value from the second slope value,
- determine an LH value of a first basic luminance based on the third slope value,
- determine an overshoot value related to the overshoot based on the LH value,
- determine an overdrive value related to the overshoot based on the overshoot value, and
- perform overdrive based on the overdrive value by a display driver of the display device.
13 more elements
A control device for controlling a display device, comprising:
- at least one processor;
- and
- at least one memory operably accessing the at least one processor,
- wherein the at least one memory stores instructions for performing operations based on being executed by the at least one processor, and
- the operations include
- outputting a test motion picture by a display panel of the display device;
- receiving, from a camera device configured to capture the output test motion picture, information of a graph of a luminance sensed by the camera device for the number of camera pixels of the camera device in relation to the test motion picture, wherein an x axis of the graph indicates the number of camera pixels and a y axis of the graph indicates a value of the luminance, and the graph is constituted by a first portion composed only of a rise slope before overshoot occurs, and a second portion in which the rise slope and an overshoot slope are combined;
- determining a first slope value for the rise slope in the first portion of the graph;
- determining a second slope value for the combination of the rise slope and the overshoot slope in the second portion in the second portion of the graph;
- determining a third slope value for the overshoot slope by subtracting the first slope value from the second slope value;
- determining an LH value of a first basic luminance based on the third slope value;
- determining an overshoot value related to the overshoot based on the LH value;
- determining an overdrive value related to the overshoot based on the overshoot value;
- and
- performing overdrive based on the overdrive value by a display driver of the display device.
12 more elements
(canceled)
Dependencies are inferred from the claim text.