Apparatus, system and method for controlling temperature of backlight unit of display system

A system for controlling temperature of a backlight unit of a display system, wherein the system comprises:

• an apparatus for enabling temperature control, wherein the apparatus is arranged in the backlight unit and comprises:
• a hollow heat transfer element arranged between one or more optical elements of the backlight unit and a printed circuit board of the backlight unit when the apparatus is in use, wherein a first heat transfer fluid circulates within a hollow space of the hollow heat transfer element when the apparatus is in use, to thermally couple the hollow heat transfer element with at least one of:
• light-emitting elements arranged on the printed circuit board, the printed circuit board;
• and
• a heat exchanger thermally coupled to the hollow heat transfer element when the apparatus is in use, wherein the heat exchanger controls the temperature of the backlight unit to lie within a predefined operating temperature range, by exchange of thermal energy between the heat exchanger and the hollow heat transfer element via the first heat transfer fluid;
• wherein the first heat transfer fluid manipulates the light emitted by the light-emitting elements by performing at least one of:
• reflection, refraction, diffraction, re-distribution, of said light;
• a first temperature sensor operable to measure a first temperature of the backlight unit;
• and
• a processor configured to:
• receive the first temperature from the first temperature sensor;
• detect when the first temperature lies outside a predefined operating temperature range of the display system;
• and
• control the heat exchanger of the apparatus to bring the first temperature within the predefined operating temperature range, by exchange of thermal energy between the heat exchanger and the hollow heat transfer element of the apparatus via the first heat transfer fluid circulating within the hollow space of the hollow heat transfer element when the system is in use, upon said detection.

A method for controlling temperature of a backlight unit of a display system, wherein the method comprises:

• receiving a first temperature of a backlight unit from a first temperature sensor;
• detecting when the first temperature lies outside a predefined operating temperature range of the display system;
• and
• controlling a heat exchanger of an apparatus to bring the first temperature within the predefined operating temperature range, by exchange of thermal energy between the heat exchanger and a hollow heat transfer element of the apparatus via a first heat transfer fluid circulating within a hollow space of the hollow heat transfer element when the system is in use, upon said detection, wherein the hollow heat transfer element is arranged between one or more optical elements of the backlight unit and a printed circuit board of the backlight unit when the apparatus is in use, the first heat transfer fluid circulating within a hollow space of the hollow heat transfer element when the apparatus is in use thermally coupling the hollow heat transfer element with at least one of:
• light-emitting elements arranged on the printed circuit board, the printed circuit board;
• and the heat exchanger is thermally coupled to the hollow heat transfer element when the apparatus is in use, wherein the first heat transfer fluid manipulates the light emitted by the light-emitting elements by performing at least one of:
• reflection, refraction, diffraction, re-distribution, of said light.