A display apparatus includes: a display panel; a backlight unit including a plurality of backlight blocks; and a processor configured to drive the backlight unit to output light, wherein the processor may be further configured to: adjust a first image having a first resolution to a second image having a second resolution that is smaller than the first resolution, divide an image area corresponding to a first backlight block among the plurality of backlight blocks in the second image having the second resolution into a plurality of image areas, acquire current information corresponding to the first backlight block and a second backlight block adjacent to the first backlight block, based on the plurality of image areas, and drive the backlight unit based on the acquired current information.

The present disclosure provides a light emitting device and a display apparatus, The light emitting device includes a substrate, and a first electrode, a light emitting layer and a second electrode which are sequentially disposed on the substrate, an electrochromic substrate is disposed on the second electrode; the light emitting device further includes a chromaticity instrument, a processor, and a driver; the chromaticity instrument is configured to acquire chromaticity of light emitted by the light emitting device; the processor is configured to calculate compensated chromaticity for the light emitted by the light emitting device according to the chromaticity of the light emitted by the light emitting device acquired by the chromaticity instrument, and calculate an electrical signal according to the compensated chromaticity for the light emitted by the light emitting device.

Based on information about a vehicle, the information can be projected and displayed onto a road surface or the like. An image projection apparatus, which projects an image, includes an acquisition unit that acquires the information about the vehicle, and an image projection unit that projects the image based on the information acquired by the acquisition unit.

Provided is a display apparatus including a liquid crystal panel, a substrate, a light source module disposed on the substrate, and a control assembly configured to control the light source module and the liquid crystal panel. The light source module includes a light emitting diode disposed on the substrate, a feed pad provided on the substrate, and at least one antistatic pad provided on the substrate.

The purpose of the present invention is to realize a lighting device of thin, low power consumption and high emitting efficiency. A concrete structure of the inventions is as follows. A lighting device including a first light guide and a second light guide stacked on the first light guide, a reflecting sheet disposed under the first light guide, and a prism sheet disposed on the first light guide, in which a concentric first prism array is formed on the prism sheet, a plurality of first LEDs are disposed along a circumferential direction of a side wall of a first hole of the first light guide, a plurality of second LEDs are disposed along a circumferential direction of a side wall of a second hole of the second light guide, and the plurality of the first LEDs and the plurality of the second LEDs are displaced in azimuth direction.

A directional illuminator includes a light source, a pupil-replicating lightguide, and a tiltable reflector coupling the light source to the pupil-replicating lightguide. The exit beam angle of the light outputted by the pupil-replicating lightguide follows the in-coupling angle, and accordingly depends on the tilting angle of the tiltable reflector. The directional illuminator with steered light beam may be used to illuminate a display panel. Steering the illuminating light by the tiltable reflector enables one to steer the exit pupil of the display device to match the user's eye location(s).

A display device includes a liquid crystal display including a first liquid crystal display panel that displays a character or an image; a decorative member; and a controller that controls the display of the liquid crystal display. The decorative member is disposed on a display surface side of the liquid crystal display, and includes a display region in which the display of the liquid crystal display is transparently displayed, and a non-display region adjacent to the display region. The controller controls a luminance through the decorative member of a black display of the liquid crystal display to a luminance invisible to a user, and controls the luminance through the decorative member of a low-gradation region, except for the black display, of the liquid crystal display to a luminance visible to the user.

The purpose of the present invention is to realize a lighting device of thin, low power consumption and high emitting efficiency. A concrete structure of the inventions is as follows. A lighting device including a first light guide and a second light guide stacked on the first light guide, a reflecting sheet disposed under the first light guide, and a prism sheet disposed on the first light guide, in which a concentric first prism array is formed on the prism sheet, a plurality of first LEDs are disposed along a circumferential direction of a side wall of a first hole of the first light guide, a plurality of second LEDs are disposed along a circumferential direction of a side wall of a second hole of the second light guide, and the plurality of the first LEDs and the plurality of the second LEDs are displaced in azimuth direction.

A light emitting element driving device includes a light emitting element to emit light in response to a supply of a first current, a first switching element to turn ON/OFF the first current supplied to the light emitting element, a second switching element to turn ON/OFF a second current not supplied to the light emitting element, a constant current circuit to adjust a total current amount of the first current and the second current to be constant, and a control circuit. The control circuit turns ON the first switching element in a state of flowing the second current to the second switching element by turning ON the second switching element, and after turning ON the first switching element, flows the first current to the light emitting element and the first switching element by turning OFF the second switching element.

A light emitting element driving device includes a light emitting element to emit light in response to a supply of a first current, a first switching element to turn ON/OFF the first current supplied to the light emitting element, a second switching element to turn ON/OFF a second current not supplied to the light emitting element, a constant current circuit to adjust a total current amount of the first current and the second current to be constant, and a control circuit. The control circuit turns ON the first switching element in a state of flowing the second current to the second switching element by turning ON the second switching element, and after turning ON the first switching element, flows the first current to the light emitting element and the first switching element by turning OFF the second switching element.