# US 2013/0278643 A1 · Information processing apparatus and display control method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0278643 A1 - Document ID: US20130278643A1 - Status: Published application - Kind: A1 - Application number: 13/852,560 - Filed: 2013-03-28 - Published: 2013-10-24 - Earliest claimed: 2012-04-19 - Assignees: Fujitsu Limited - Applicants: Fujitsu Limited - Inventors: Katsumi OTSUKA; Naoyuki Sawasaki; Yoku Takahashi; Tomohiro Nakajima - Web page: https://patentgrep.com/patent/US20130278643A1 ## CPC - G09G 1/002: {Intensity circuits (G09G1/06 - G09G1/28 take precedence)} - G09G 5/02: characterised by the way in which colour is displayed {(details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607)} - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - G09G 2320/0666: for control of colour parameters, e.g. colour temperature - G09G 2360/144: the light being ambient light - G09G 2360/16: Calculation or use of calculated indices related to luminance levels in display data - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract An information processing apparatus is disclosed, including a detection part, a change part, and a determination part. The detection part detects a change of a first color temperature of an external environment. The change part changes a second color temperature of a display part at a predetermined speed to a targeted value corresponding to the first color temperature after the change in response to a detected change of the first color temperature. The determination part determines whether brightness of an image is changed, in response to a switch of the image on the display part. when it is determined that the brightness of the image on the display part is changed during the change of the second color temperature of the display part, the change part changes the second color temperature of the display part at a different speed from the predetermined speed. ## Claims ### Claim 1 An information processing apparatus comprising: a detection part configured to detect a change of a first color temperature of an external environment; a change part configured to change a second color temperature of a display part at a predetermined speed to a targeted value corresponding to the first color temperature after the change in response to a detected change of the first color temperature; and a determination part configured to determine whether brightness of an image is changed, in response to a switch of the image on the display part, wherein when it is determined that the brightness of the image on the display part is changed during the change of the second color temperature of the display part, the change part changes the second color temperature of the display part at a different speed from the predetermined speed. ### Claim 2 (depends on 1) The information processing apparatus as claimed in claim 1, wherein when it is determined that the image after the change is darker than the image before the change during the change of the second color temperature of the display part, the change part changes the second color temperature of the display part at slower speed than the predetermined speed. ### Claim 3 (depends on 1) The information processing apparatus as claimed in claim 1, wherein when the image after the change is brighter than the image before the change during the change of the second color temperature of the display part, the change part further changes the second color temperature of the display part at a faster speed than the predetermined speed. ### Claim 4 (depends on 1) The information processing apparatus as claimed in claim 1, wherein the determination part determines the presence or absence of the brightness change of the image before and after the change based on a distribution of pixel values of the image respectively. ### Claim 5 A display control method performed in a computer, the method comprising: detecting, by the computer, a change of a first color temperature of an external environment; changing, by the computer, a second color temperature of a display part at a predetermined speed to a targeted value corresponding to the first color temperature after the change in response to a detected change of the first color temperature; and determining, by the computer, whether brightness of an image is changed, in response to a switch of the image on the display part, wherein when it is determined that the brightness of the image on the display part is changed during the change of the second color temperature of the display part, the second color temperature of the display part is changed by the computer at a different speed from the predetermined speed. ### Claim 6 A non-transitory computer-readable recording medium recorded with a program which, when executed by a computer, causes the computer to perform a display control process comprising: detecting a change of a first color temperature of an external environment; changing a second color temperature of a display part at a predetermined speed to a targeted value corresponding to the first color temperature after the change in response to a detected change of the first color temperature; and determining whether brightness of an image is changed, in response to a switch of the image on the display part, wherein when it is determined that the brightness of the image on the display part is changed during the change of the second color temperature of the display part, the second color temperature of the display part is changed at a different speed from the predetermined speed.