Mixed high dynamic range (HDR) and standard dynamic range (SDR) mode enablement in liquid crystal diode (LCD) displays

A method to enable rendering of a multi-window image on a liquid crystal display (LCD), the method comprising:

• detecting, by a content mode detector, based on received image data corresponding to the multi-window image, a dynamic range of content of each window within the multi-window image;
• and
• responding, by a mixed-mode processor, to the content mode detector's detecting a first window within the multi-window image having high dynamic range (HDR) content and a second window within the multi-window image having standard dynamic range (SDR) content, wherein the responding includes:
• setting a backlight of the LCD based on a predetermined HDR maximum brightness requirement of the LCD,
• determining an SDR scaling ratio based on the HDR and SDR content, and
• generating an adjusted SDR gamma based on the SDR scaling ratio,
• wherein in rendering the multi-window image on the LCD, a color and brightness of the HDR content and SDR content are dictated by the adjusted SDR gamma and a predetermined electro-optical transfer function (EOTF) corresponding to the HDR content.

An information handling system, comprising:

• a processor;
• a memory coupled with the processor;
• a liquid crystal display (LCD) coupled with the processor;
• and
• a system coupled with LCD to perform operations to enable rendering of a multi-window image on the LCD, wherein the operations include:
• detecting, based on received image data corresponding to the multi-window image, a dynamic range of content of each window within the multi-window image;
• and
• responding to detecting a first window within the image having high dynamic range (HDR) content and a second window within the image having standard dynamic range (SDR) content, wherein the responding includes:
• setting a backlight of the LCD based on a predetermined HDR maximum brightness requirement of the LCD,
• determining an SDR scaling ratio based on the HDR and SDR content, and
• generating an adjusted SDR gamma based on the SDR scaling ratio,
• wherein in rendering the multi-window image on the LCD, a color and brightness of the HDR content and SDR content are dictated by the adjusted SDR gamma and a predetermined electro-optical transfer function (EOTF) corresponding to the HDR content.