116results about How to "Suppress brightness" patented technology

In an LED unit, all of eight LEDs are connected in series. The voltage of a power supply, that is, a battery of a vehicle, 12 V, is insufficient for the eight LEDs. To cope with this, a boosting circuit is provided within the control unit to boost the voltage to about 16 V which is then applied to the eight LEDs. The front end of the LED unit is connected to a constant-current circuit, and a voltage detection circuit is provided near and connected to this constant-current circuit for detecting the voltage applied to the constant-current circuit. The voltage detected by the voltage detection circuit is compared with a reference voltage drawn from the power supply, is amplified in an amplifier, and is input as a boosting control signal into the boosting circuit. The boosting control signal is output so as to regulate the boosted voltage in such a manner that the voltage detected in the voltage detection circuit is a lowest possible voltage.

A method for driving a light-emitting device in which a plurality of pixel circuits are arranged in correspondence with the intersection of a plurality of scanning lines and a plurality data lines, the pixel circuit having a light-emitting element and a driving transistor that controls the current amount of a driving current flowing the light-emitting device, comprises repeating the process within unit period including a first period and a second period following the first period, wherein the second period process includes selecting one scanning line of the plurality of scanning lines, and supplying and holding a data voltage corresponding to the luminance of the light-emitting element to a gate of the driving transistor via the data lines with respect to the plurality pixel circuits connected the selected scanning lines, and wherein the first period process includes selecting two or more scanning lines of the plurality of scanning lines, and correcting the unbalance of the driving current output from the driving transistor in the plurality of pixel circuits connected to the selected scanning lines.

A hard-coated antiglare film, comprising a transparent plastic film substrate and a hard-coating antiglare layer containing fine particles on at least one surface of the transparent plastic film substrate, wherein an arithmetic average surface roughness Ra (μm) that is defined in JIS B 0601 (1994 version) is in the range of 0.05 to 0.15 μm in an uneven shape of a surface of the hard-coating antiglare layer, and the hard-coated antiglare film includes at least 80 convexities that exceed a roughness mean line of a surface roughness profile in a 4-mm long portion at an arbitrary location of the surface of the hard-coating antiglare layer.

An organic light emitting display panel includes a base substrate; a light emitting device comprising a first electrode, a light emitting layer on the first electrode, and a second electrode on the light emitting layer; a base layer providing a base surface on which the first electrode is located; a supporting layer protruding from the base surface; a sub-electrode spaced from the first electrode, electrically connected to the second electrode, and located on the supporting layer; and a pixel definition layer on the base substrate so as to expose the first electrode and the sub-electrode.

Disclosed is a display device with a seamless display which allows display such that the viewer does not experience a feeling of discomfort or such feelings of discomfort are reduced. The display device is provided with: a display panel (2) wherein a plurality of display elements are arranged in matrix fashion and wherein a border region where the aforementioned display elements are not arranged is provided at the edge thereof; lightguide elements (4) provided on the aforementioned display panel (2) for guiding some of the light that is emitted from the aforementioned display elements onto the aforementioned border region by optical path conversion; an optical sensor (100) which is provided on the aforementioned display panel (2) and detects ambient illuminance; an image signal correction unit that outputs a corrected image signal by correcting an image signal that is supplied to the display elements of the region where the aforesaid lightguide elements (4) are provided in accordance with the detected ambient illuminance, so as to reduce the brightness of the display light of said image by means of the aforesaid lightguide elements (4), or so as to reduce the coloration thereof; and a drive unit that drives the aforesaid display elements in accordance with the aforesaid corrected image signal.

In order to dim the brightness of the mixed-color light from an LED light (11) with LED arrays (12r, 12g, 12b) which emit different colors, in particular in the passenger cabin of an airliner, the current-flow time intervals (tr, tg, tb) which can be adjusted such that they are different over the various arrays (12) are shortened in steps during initially constant working period lengths (ta).

A hard-coated antiglare film that has superior antiglare properties, allow high definition to be provided even in the case of a low haze value, can prevent white blur in an oblique direction from occurring and, and can improve the depth of black in black display, as well as a polarizing plate, and the like. The hard-coated antiglare film includes a transparent plastic film substrate and a hard-coating antiglare layer containing fine particles, which is on at least one surface of the transparent plastic film substrate. The hard-coated antiglare film has a total haze value Ht in the range of 10% to 35%. The total haze value Ht and an internal haze value Hin satisfy a relationship of 0.5≦Hin / Ht≦0.9. The surface of the hard-coating antiglare layer has an uneven shape and an arithmetic average surface roughness Ra in the range of 0.1 to 0.3 μm. The hard-coated antiglare film includes: convexities that exceed a roughness mean line of a surface roughness profile; no convexities in which line segments of portions of the mean line that cross the convexities each have a length of 80 μm or longer, and convexities that exceed a standard line that is in parallel with the mean line and is located at a height of 0.1 μm; and at least 50 convexities in which line segments of portions of the standard line that cross the convexities each have a length of 20 μm or shorter in 4-mm long portion at an arbitrary location of the surface of the hard-coating antiglare layer.