US Patent No. 10,002,572

LIQUID CRYSTAL MONITOR DEVICE, DISPLAY SYSTEM, AND BACKLIGHT CONTROL METHOD


Patent No. 10,002,572
Issue Date June 19, 2018
Title Liquid Crystal Monitor Device, Display System, And Backlight Control Method
Inventorship Isamu Kenmochi, Tokyo (JP)
Assignee NEC DISPLAY SOLUTIONS, LTD., Tokyo (JP)

Claim of US Patent No. 10,002,572

1. A liquid crystal monitor device used for a display system including a plurality of liquid crystal monitor devices which modulate light of a backlight using a liquid crystal panel and display an image, the liquid crystal monitor devices comprising a parent device, the liquid crystal monitor device comprising:a liquid crystal monitor;
a backlight which outputs visible light to the liquid crystal monitor;
an adjustment switch configured to receive an input of a first backlight-setting value of an own device which is an adjustment value adjusted manually for luminance of the backlight;
a reception unit configured to receive a backlight-setting value of the parent device from the parent device, the backlight-setting value of the parent device comprising an adjustment value adjusted manually for luminance of a backlight of the parent device;
a control unit configured to adjust a luminance of the backlight of the own device; and
a storage configured to store a relationship between backlight-setting values of the own device and the parent device,
wherein the control unit is configured to:
adjust, when the adjustment switch receives the input of the first backlight-setting value of the own device, the luminance of the backlight on the basis of the first backlight-setting value of the own device and update the stored relationship to a first correction value on the basis of at least the first backlight-setting value of the own device;
calculate, when the reception unit further receives the backlight-setting value of the parent device, a second backlight-setting value of the own device corresponding to the received backlight-setting value of the parent device on the basis of the stored relationship and adjust the luminance of the backlight on the basis of the calculated second backlight-setting value of the own device; and
adjust, when the adjustment switch receives the input of a third backlight-setting value of the own device, the luminance of the backlight on the basis of the third backlight-setting value of the own device and update the stored relationship to a second correction value on the basis of at least the third backlight-setting value of the own device.