Abstract: Provided is a display apparatus which allows a user to easily confirm the contents of an image during displaying, when a cover covering a display region is present, even without removing the cover. The display apparatus having a pixel region including a plurality of pixels is configured to, by a display control unit, determine whether the cover covering a part of the pixel region is present, and if it is determined that the cover is present, display the image in the pixels of the remaining part which is not covered by the cover.

Abstract: A casing integrally includes a first accommodation part in which an optical part is accommodated and a second accommodation part in which an optical support is accommodated. Since the optical part which is a part of an optical plate member formed in a bent plate shape is supported by the optical support which is another part of the optical plate member, it is unnecessary to prepare a thick and robust member for supporting the optical part. That is, the first accommodation part side of a light source device can be made thinner. Moreover, the second accommodation part side of a display apparatus functions as a stand for stationary installation of the first accommodation part side of the light source device. It is therefore possible to reduce the size of the light source device and also the display apparatus, since it is not necessary to attach a separate stand to the first accommodation part side of the light source device.

Abstract: A casing integrally includes a first accommodation part in which an optical part is accommodated and a second accommodation part in which an optical support is accommodated. Since the optical part which is a part of an optical plate member formed in a bent plate shape is supported by the optical support which is another part of the optical plate member, it is unnecessary to prepare a thick and robust member for supporting the optical part. That is, the first accommodation part side of a light source device can be made thinner. Moreover, the second accommodation part side of a display apparatus functions as a stand for stationary installation of the first accommodation part side of the light source device. It is therefore possible to reduce the size of the light source device and also the display apparatus, since it is not necessary to attach a separate stand to the first accommodation part side of the light source device.

Abstract: Provided is a display apparatus which allows a user to easily confirm contents of an image during displaying, when a cover covering a display region is present, even without removing the cover. The display apparatus having a pixel region including a plurality of pixels controls to, by a display control unit, determine whether the cover covering a central part of the pixel region, or a cover covering a region of a prescribed ratio or more is present, stop the display of the image if it is determined that the cover covering the central part, or the cover covering the region of the prescribed ratio or more is present, and display the entirety of the image within a range which is not covered other than the above-described condition.

Abstract: Provided is a display apparatus which allows a user to easily confirm the contents of an image during displaying, when a cover covering a display region is present, even without removing the cover. The display apparatus having a pixel region including a plurality of pixels is configured to, by a display control unit, determine whether the cover covering a part of the pixel region is present, and if it is determined that the cover is present, display the image in the pixels of the remaining part which is not covered by the cover.

Abstract: Provided is a display device that includes: a display panel (7) that has a display surface that displays an image; a fan (500); an ion-generating device (520) that can generate ions; and a guiding mechanism (620) that can selectively guiding air from the fan (500) to the display surface and to the rear side of the display surface. The air that is guided to the display surface is guided together with ions that are generated by the ion-generating device (520).

Abstract: A light-collecting type liquid crystal display device capable of displaying an image properly is provided. The liquid crystal display device 100 includes a liquid crystal panel 10; an irradiation section 31, a control device 61, and a plate-like member 20 attached to a part (10a) of the liquid crystal panel 10. A light guiding section 40 for collecting natural light 51 and propagating the light is located on a first surface 21 of the plate-like member 20; and the light guiding section 40 is connected to the irradiation section 31. A plurality of optical sensors 46 are provided on the first surface 21 of the plate-like member 20. The irradiation section 31 includes a plurality of LED elements 30. The control device 61 is connected to an LED driving section 63. The control device 61 is connected to the optical sensors 46.

Abstract: A display device (liquid crystal display device 100) includes a display panel (10) (liquid crystal panel 10), light receiving sensors (first light receiving sensors 122), and an image changing section (250). A display region (10a) of the liquid crystal panel (10) has a plurality of pixels (30) located therein. The first light receiving sensors (122) receive external light directed to the liquid crystal panel (10), at a plurality of positions in the display region (10a). In the image changing section (250), a reference value is predefined for light receiving information (a1 through d1) obtained by the first light receiving sensors (122). When light receiving information (a1 through d1) exceeding the reference value is obtained by the first light receiving sensors (122), the image changing section (250) changes an image to be displayed on the display region (10a), based on the light receiving information (a1 through d1).

Abstract: A light guide element includes a light-emitting section including a light-emitting surface, a light guide section, and a diffusing device provided in at least part of a region extending from a boundary surface between the light-emitting section and the light guide section, to point halfway between the boundary surface and an end of the light guide section closer to the light source. The light guide element might be used to form a backlight for a liquid crystal display device.

Abstract: Provided is a display device that includes: a display panel (7) that has a display surface that displays an image; a fan (500); an ion-generating device (520) that can generate ions; and a guiding mechanism (620) that can selectively guiding air from the fan (500) to the display surface and to the rear side of the display surface. The air that is guided to the display surface is guided together with ions that are generated by the ion-generating device (520).

Abstract: A backlight (illumination device; 2) of the present invention includes: multiple light sources (5); multiple light guide plates (7, 17, . . . ) for causing surface emission of light from the light sources (5); and a diffusing plate (8) for diffusing light from the light guide plates (7, 17, . . . ), the diffusing plate (8) being provided so as to be separate from and face the light guide plates (7, 17, . . . ). Each of the light guide plates (7, 17, . . . ) includes: a light-emitting section (7b) having a light-emitting surface (7a); and a light guide section (7c) for guiding, to the light-emitting section (7b), light from the light sources (5), a light-emitting section (17b) of the first light guide plate (17) being provided above a light guide section (7c) of the second light guide plate (7) adjacent to the first light guide plate (17).

Abstract: A light-collecting type liquid crystal display device capable of displaying an image properly is provided. The liquid crystal display device 100 includes a liquid crystal panel 10; an irradiation section 31, a control device 61, and a plate-like member 20 attached to a part (10a) of the liquid crystal panel 10. A light guiding section 40 for collecting natural light 51 and propagating the light is located on a first surface 21 of the plate-like member 20; and the light guiding section 40 is connected to the irradiation section 31. A plurality of optical sensors 46 are provided on the first surface 21 of the plate-like member 20. The irradiation section 31 includes a plurality of LED elements 30. The control device 61 is connected to an LED driving section 63. The control device 61 is connected to the optical sensors 46.

Abstract: An illumination device includes a plurality of light source units (20) each having a light guide plate and at least one light source. The light guide plate is provided with an illumination region (4) through which an incident beam of light from the at least one light source is emitted outward and a light guide region (3) through which the incident beam of light from the at least one light source is guided toward the illumination region (4), with the illumination region (4) and the light guide region (3) laid side-by-side. Light source units (20) adjacent to each other along a direction of an optical axis of the at least one light source are disposed so that the illumination region (4) of one of the light source units (20) covers at least a part of the light guide region (3) of the other light source unit (20).

Abstract: Each of light guides (2) has: a reflection surface (2e); and a light emitting surface (2c) that is opposite to the reflection surface (2e) and is not covered by a neighboring light guide (2). The light emitting surface (2c) is made up of a first emitting surface (7) and a second emitting surface (8). The first emitting surface (7) is substantially parallel with the reflection surface (2e). The second emitting surface (8) is substantially parallel with an irradiated surface. The each of the light guides (2) is provided with microprisms (9) serving as diffusing means at least in a first emitting surface region (12) in which there is the first emitting surface (7).

Abstract: A solar panel is provided which can be satisfactorily used as an information medium for advertising, announcement, etc. without a decrease in the efficiency of power generation. The solar panel includes a liquid crystal display panel 100 including a memory liquid crystal layer 36 between electrodes, and a solar cell 200. When the solar cell 200 performs power generation, the memory liquid crystal layer 36 is changed to an optically transparent state. On the other hand, when the solar cell 200 does not perform power generation, pixels in a light scattering state are formed in a predetermined portion of the memory liquid crystal layer 36, thereby performing light display, and pixels in an optically transparent state are formed in the other portion of the memory liquid crystal layer 36, thereby performing dark display, whereby an image including a combination of the light display and the dark display is formed on the liquid crystal display panel 100.

Abstract: A display device includes a display panel which is capable of simultaneously displaying a plurality of images in a display region in which a plurality of pixels are arranged, a plurality of photosensors each configured to receive external light irradiating the display region of the display panel, and a high-priority image display controller in which a reference value is preset for light reception information obtained by the photosensors and which is configured to set, when one or more of values for the light reception information exceeding the reference value is obtained by the photosensors, a high-priority image display area in the display region based on the light reception information and to display a high-priority image in the high-priority image display area.

Abstract: A display device includes a display panel in which a plurality of pixels are arranged in a display region; a plurality of photosensors each configured to receive external light irradiating the display region of the display panel; and a graphic display controller in which a reference value is preset for light reception information obtained by the photosensors and which is configured to display, when one or more of values for the light reception information exceeding the reference value is obtained by the photosensors, a graphic image indicating predetermined information in the display region based on the light reception information.

Abstract: A display device (liquid crystal display device 100) includes a display panel 10 (liquid crystal panel 10), light receiving sensors (first light receiving sensors 122), a cooling section 90, and a cooling control section 280. A display region 10a of the liquid crystal panel 10 has a plurality of pixels 30 located therein. The first light receiving sensors 122 receive external light directed to the liquid crystal panel 10, at a plurality of positions in the display region 10a. The cooling unit 90 performs cooling independently for each of a plurality of areas A through D obtained as a result of dividing the display region 10a. The cooling control section 280 controls the cooling unit 90 based on light receiving information a1 through d1 obtained by the first light receiving sensors 122, such that the cooling is performed independently for each of the plurality of areas A through D.

Abstract: A display device (liquid crystal display device 100) includes a display panel (10) (liquid crystal panel 10), light receiving sensors (first light receiving sensors 122), and an image changing section (250). A display region (10a) of the liquid crystal panel (10) has a plurality of pixels (30) located therein. The first light receiving sensors (122) receive external light directed to the liquid crystal panel (10), at a plurality of positions in the display region (10a). In the image changing section (250), a reference value is predefined for light receiving information (a1 through d1) obtained by the first light receiving sensors (122). When light receiving information (a1 through d1) exceeding the reference value is obtained by the first light receiving sensors (122), the image changing section (250) changes an image to be displayed on the display region (10a), based on the light receiving information (a1 through d1).

Abstract: Light-emitting unit (11) includes: lightguides (7a) and (7b) having light-emitting surfaces (12a•b) for emitting light in surface-emitting manner; and light sources (5a•b), being provided on back sides with respect to light-emitting surfaces (12a•b), lightguides (7a•b) including: light-emitting sections (10a•b) each having one surface which is corresponding one of light-emitting surfaces (12a•b); lightguide sections (9a•b) each having one end which is connected to corresponding one of light-emitting sections (10a•b) and each having other end which serves as incident surface of light emitted from corresponding one of light sources (5a•b); and reflecting surfaces (18a•b) being formed in light-emitting sections (10a•b) so as to be located to interpose between lightguide sections (9a•b), and to divide light-emitting surface into light-emitting surfaces (12a•b), lightguide sections (9a•b) being provided on back sides with respect to light-emitting surfaces (12a•b) so as to guide light to light-emitting surfaces (1