BACKLIGHT DEVICE AND DISPLAY DEVICE

• Main Author: NAKAMURA KATSUTOSHI
• Format: Patent
• Language: English; Japanese
• Published: 03.08.2022
• Subjects: BLASTING; 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; FREQUENCY-CHANGING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-LINEAR OPTICS; NON-PORTABLE LIGHTING DEVICES; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SYSTEMS THEREOF; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

To provide a backlight device which can inhibit deterioration of uniformity of light emitted from a diffuser panel.SOLUTION: A backlight device radiates light to a display panel. The backlight device includes a diffuser panel 103, a translucent member 105, a light source 109, and a support member 120. The diffuser panel 103 diffuses light. The translucent member 105 is located adjacent to a light incident surface 103a of the diffuser panel 103. The translucent member 105 transmits light. The light source 109 is disposed at the opposite side of the diffuser panel 103 with respect to the translucent member 105. The light source 109 emits light to the diffuser panel 103. The support member 120 is disposed at the opposite side of the diffuser panel 103 with respect to the translucent member 105. The support member 120 supports the translucent member 105.SELECTED DRAWING: Figure 3 【課題】拡散板から出射する光の均一性が低下することを抑制できるバックライト装置を提供する。【解決手段】バックライト装置は、表示パネルに光を照射する。バックライト装置は、拡散板１０３と、透光部材１０５と、光源１０９と、支持部材１２０とを備える。拡散板１０３は、光を拡散する。透光部材１０５は、拡散板１０３の光入射面１０３ａに隣接する。透光部材１０５は、光を透過する。光源１０９は、透光部材１０５に対して拡散板１０３とは反対側に配置される。光源１０９は、拡散板１０３に向かって光を出射する。支持部材１２０は、透光部材１０５に対して拡散板１０３とは反対側に配置される。支持部材１２０は、透光部材１０５を支持する。【選択図】図３