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US 11,600,237 B2Granted
LCD display for pixel level local dimming and dynamic privacy
AssigneeDell Products L.P.
InventorsAsim Siddiqui, Jong Seo Lee
Life of this patent
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Abstract
A liquid crystal display (LCD) device includes an LCD panel with a number (N) of pixel elements for displaying an image. A dimming panel includes N dimming elements. The dimming panel has a first mode to apply a uniform dimming to the N dimming elements to provide a privacy function for the LCD device. The dimming panel further has a second mode to a apply a per-element dimming to provide a local dimming function for the LCD device.
Claims20
A method of operating a liquid crystal display (LCD) device, the method comprising:
- providing, on an LCD panel of the LCD device, a number (N) of pixel elements for displaying an image;
- providing, on a dimming panel having of the LCD device, N dimming elements;
- providing the dimming panel with a first mode to apply a uniform dimming to the N dimming elements to collimate the image to provide a privacy function for the LCD device;
- and
- providing the dimming panel with a second mode to a apply a per-element dimming to provide a local dimming function for the LCD device;
- determining, by a processor of an information handling system that includes the LCD device, that a first type of application is running on the information handling system;
- setting, by the processor, the dimming panel to operate in the first mode in response to determining that the first type of application is running;
- determining, by the processor, that a second type of application is running on the information handling system;
- and
- setting, by the processor, the dimming panel to operate in the second mode in response to determining that the second type of application is running.
7 more elements
An information handling system, comprising:
- a processor;
- and
- a liquid crystal display (LCD) device, including:
- an LCD panel having a number (N) of pixel elements for displaying an image;
- and
- a dimming panel having N dimming elements;
- wherein the processor provides data associated with the image to the LCD device;
- wherein the dimming panel has a first mode to apply a uniform dimming to the N dimming elements to collimate the image to provide a privacy function for the LCD device, and has a second mode to a apply a per-element dimming to provide a local dimming function for the LCD device;
- and
- wherein the processor is further configured to:
- determine that a first type of application is running on the information handling system;
- set the dimming panel to operate in the first mode in response to determining that the first type of application is running;
- determine that a second type of application is running on the information handling system;
- and
- set the dimming panel to operate in the second mode in response to determining that the second type of application is running.
12 more elements
An information handling system, comprising:
- a processor configured to instantiate a liquid crystal display (LCD) application programming interface (API);
- and
- a LCD device, including an LCD panel having a number (N) of pixel elements for displaying an image, and a dimming panel having N dimming elements;
- wherein the processor provides data associated with the image to the LCD device;
- wherein the dimming panel has a first mode to apply a uniform dimming to the N dimming elements to collimate the image to provide a privacy function for the LCD device, and has a second mode to a apply a per-element dimming to provide a local dimming function for the LCD device;
- and
- wherein the processor is further configured to:
- determine that a first type of application is running on the information handling system;
- direct the LCD API to set the dimming panel to operate in the first mode in response to determining that the first type of application is running;
- determine that a second type of application is running on the information handling system;
- and
- direct the LCD API to set the dimming panel to operate in the second mode in response to determining that the second type of application is running.
9 more elements
Dependencies are inferred from the claim text.