CIRCUIT DEVICE AND DISPLAY DEVICE

• Main Authors: ADACHI KENTARO, ANAND KUMAR ANANDABAIRAVASAMY
• Format: Patent
• Language: English; Japanese
• Published: 14.08.2023
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; DISPLAYING; EDUCATION; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; LABELS OR NAME-PLATES; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; SIGNS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

To provide a circuit device, etc., with which it is possible to provide a natural display image, even when abnormality occurs to a light source.SOLUTION: A circuit device 100 is used for a display device 40. The display device 40 includes a display panel 340 and a backlight 330 having a plurality of light sources. Each of a plurality of light sources is provided corresponding to each of a plurality of areas of the display panel 340. The circuit device 100 includes a light quantity abnormality detection circuit 145, a dimmer circuit 135, and a color correction circuit 115. The light quantity abnormality detection circuit 145 detects light quantity abnormality in each light source. The dimmer circuit 135 adjusts the light quantities of light sources other than an abnormal light source in which light quantity abnormality has been detected, so as to compensate for light quantity in the area corresponding to the abnormal light source. The color correction circuit 115 performs color correction corresponding to the adjusted light quantity on the image data of the area that corresponds to the adjustment-subjected light source the light quantity of which has been adjusted.SELECTED DRAWING: Figure 3 【課題】光源に異常が生じた場合であっても自然な表示画像を提供できる回路装置等を提供すること。【解決手段】回路装置１００は表示装置４０に用いられる。表示装置４０は、表示パネル３４０と、複数の光源を有するバックライト３３０とを含む。表示パネル３４０の複数のエリアの各エリアに対応して、複数の光源の各光源が設けられる。回路装置１００は、光量異常検出回路１４５と調光回路１３５と色補正回路１１５とを含む。光量異常検出回路１４５は、各光源における光量異常を検出する。調光回路１３５は、光量異常が検出された光源である異常光源以外の光源の光量を調整することで、異常光源に対応したエリアの光量を補償する光量補償処理を行う。色補正回路１１５は、光量が調整された光源である調整対象光源に対応したエリアの画像データに対して、調整された光量に応じた色補正を行う。【選択図】図３