Abstract: An optical substrate and a display device are provided. The optical substrate includes a light guide plate and a plurality of light selection units, wherein, the light guide plate includes a light-incident surface and a light-exiting surface, and the light-exiting surface includes a plurality of light-exiting regions; each light selection unit is configured to select light incident from the light-incident surface and propagating in the light guide plate, such that monochromatic light of different colors are emitted from multiple light-exiting regions corresponding to the each light selection unit, and each of the multiple light-exiting regions emits monochromatic light of a single color.

Abstract: An intensity adapting optical aiming system that automatically adjusts the intensity of the reticle to adapt to the light condition of the external light. The aiming system may be mounted to a weapon and the external light may be a weapon mounted light. The aiming system may include an illuminateable reticle and a light connector for transmitting light from the external light to the reticle.

Abstract: The present application provides an organic light emitting diode display panel having a plurality of subpixels. The organic light emitting diode display panel includes an array substrate; and a counter substrate facing the array substrate. The counter substrate includes a plurality of organic light emitting diodes. The array substrate includes a first base substrate; a plurality of thin film transistors on the first base substrate for driving light emission of the plurality of organic light emitting diodes in the counter substrate; and a first electrode layer. The first electrode layer electrically connects the plurality of organic light emitting diodes to the plurality of thin film transistors, respectively.

Abstract: A laser nightlight is disclosed. A laser nightlight includes a base, an electrical prong adapted to be inserted into an electrical outlet wherein the electrical prong is secured to and projects from the base; and a power supply circuit coupled to the electrical prong and contained within the base. A laser mounted within the base and coupled to the power supply circuit is adapted to produce a laser beam through an output. A lens is secured to the base and is positioned to cover the output of the laser. The output of the laser is pointed at a spot on the lens, and a portion of the lens at the spot may be opaque, faceted or cloudy, or may comprise a diffuser. A portion of the lens where the output of the laser points may contain an image and a light pattern corresponding to the image may be produced when the laser beam illuminates the image. The lens may be formed from shatterproof glass, clear glass or quartz. The lens may be sealed to the base.

Abstract: An illumination system converting light beams into wide-angle light transmissions including i) a cylindrical member having a cone-shaped depression in a distal end; and ii) a semi-circular member having an inner radial surface adjacent to a sidewall of the cylindrical member; and angled upper and lower annular surfaces extending from the cylindrical member and meeting at an outer radial edge. A light beam entering the proximal end of the cylindrical member strikes a first edge of the cone-shaped depression and is reflected out as a first light transmission; or it strikes a second edge of the cone-shaped depression, is reflected against the upper and lower annular surfaces, and exits the cylindrical member as a second light transmission parallel to the first diffused light transmission. At least one light path passes through a diffuser on the cylindrical member.

Abstract: Embodiments of the present application are directed toward a focusing Schlieren technique that is capable of adding color-coded directional information to the visualization of density gradients. Other advantages of the technique can include that it does not require manual calibration, has a simple design and is sensitive enough to be used in compact experimental setups. Certain embodiments include the use of a color-coded source image that replaces the conventional source grid. The technique may benefit from a computer-controlled digital background, which is used for both illumination and display of color-coded source images.

Abstract: A multi-mirror laser sustained plasma broadband light source is disclosed. The light source may include a gas containment structure for containing a gas. The light source includes a pump source configured to generate pump illumination and a first reflector element configured to direct a portion of the pump illumination into the gas to sustain a plasma. The first reflector is configured to collect a portion of broadband light emitted from the plasma. The light source also includes one or more additional reflector elements positioned opposite of the first reflector. The one or more additional reflector elements are configured to reflect unabsorbed pump illumination and broadband light uncollected by the first reflector element back to the plasma.

Abstract: Methods for reducing road surface glare from an automotive headlight for an observer not viewing through a polarizing filter are described. The use of a reflective polarizer for reducing road surface glare from an automotive headlight for an observer not viewing through a polarizing filter are also described. A low-beam headlight including a light source, a housing, and a reflective polarizer is also described. The reflective polarizer has a pass axis and the pass axis forms an angle with a road surface between 45 degrees and 135 degrees.

Abstract: The invention proposes a light device casing formed by a wall made of an electrically insulating material, such as a polymer. The casing includes an inner surface forming a housing receiving a light module with a light-emitting diode and a light guide. The inner surface includes a zone reflecting light from the light module out of the casing, and a fixing zone for a control module of the light module. The light device includes a reflecting and electrically conductive coating, which covers both the reflecting zone and the fixing zone. The aluminum coating is cost-effective since it is applied in one step, and it ensures two functions, namely a reflection and a protection against the electromagnetic field.

Abstract: A configurable vehicle lighting module system includes a shared lens configured to provide a first light pattern for a first vehicle lighting function and a second light pattern for a second vehicle lighting function. The shared lens includes a mounting axis which provides a reference for mounting the shared lens on a vehicle. First internal optics are configured to direct light toward the shared lens to provide the first light pattern, and second internal optics are configured to direct light toward the shared lens to provide the second light pattern. A coupling system is configured to join the shared lens with either the first internal optics to form a first module configuration for providing the first vehicle lighting function, or with the second internal optics to form a second module configuration for providing the second vehicle lighting function.

Abstract: A display device includes a thin film transistor (TFT) substrate, an overcoat layer on an upper substrate, and a reflective layer on the overcoat layer. The TFT substrate covers a light guide plate and includes TFTs configured to drive pixels of the display device. The reflective layer on the overcoat layer reflects light output from the light guide plate towards a viewing surface of the display device. The reflected light overlaps a portion of a non-active area between the active areas of pixels of the display device in at least one dimension.

Abstract: A lamp structure contains a lamp head and a magnetic seat. The lamp head includes a lampshade, a light transmission cover, and a light emitting element. The magnetic seat includes a holding member, at least one magnet, a first electrode plate, and a second electrode plate. The lampshade includes a first light exit, a second light exit, and a reflective face, wherein a gap is defined between the light transmission cover and the reflective face. The first electrode plate and the second electrode plate are electrically connected with the light emitting element via a wire, and the first and second electrode plates are made of metal material consisting of iron. The magnet magnetically attracts and produces magnetic force on the first and second electrode plates which magnetically attract on a conductive component consisting of iron by using the magnetic force so as to form a power circuit.

Abstract: An apparatus for structured illumination of a specimen comprises an illumination device for generating illumination beams. The illumination beams are incident on a mask device. Openings provided in the mask device serve for generating a mask image. The mask image is imaged within the specimen with the aid of an objective. Detection beams generated by the specimen are captured by a detection device. For increasing the intensity of the observation beams entering the specimen, those beams which do not pass through the openings, are collected with the aid of a beam collector and guided back to the mask device.

Abstract: An apparatus and a method for operating a sealed beam lamp containing an ionizable medium are disclosed. The lamp includes a sealed chamber, a pair of ignition electrodes, a substantially flat chamber ingress window, and a laser light source disposed outside the chamber producing laser light. Laser light is focused to a first focal region coinciding with an ignition region disposed between the ignition electrodes. The ionizable medium at the ignition region is ignited with the laser. The laser light is focused to a second focal region coinciding with a plasma sustaining region not co-located with the plasma ignition region.

Abstract: A reflection imaging device includes a first component board, a second component board, and flat plates. The first component board includes first planar reflectors perpendicular to a plate surface and first light transmissive bases extending parallel to the first planar reflectors. The first planar reflectors and the first light transmissive bases are alternately arranged. The second component board includes an inner plate surface bonded to an inner plate surface of the first component board opposed thereto. The second component board includes second planar reflectors perpendicular to the plate surface and the first planar reflectors and second light transmissive bases extending parallel to the second planar reflectors. The second planar reflectors and the second light transmissive bases are alternately arranged. The flat plates are bonded to the outer plate surfaces of at least one of the first component board and the second component board opposed thereto.

Abstract: The invention relates to a luminescent converter (10, 12) for a phosphor-enhanced light source (100, 102, 104). The luminescent converter comprises a first luminescent material (20) configured for absorbing at least a part of excitation light (hv0) emitted by a light emitter (40, 42) of the phosphor-enhanced light source, and for converting at least a part of the absorbed excitation light into first emission light (hv1) comprising a longer wavelength compared to the excitation light. The luminescent converter further comprising a second luminescent material (30) comprising organic luminescent material (30) and configured for absorbing at least a part of the first emission light emitted by the first luminescent material, and for converting at least a part of the absorbed first emission light into second emission light (hv2) having a longer wavelength compared to the first emission light.

Abstract: A vacuum tube includes a filament and two pairs of a grid and an anode. The filament is tensioned linearly and emits thermoelectrons. Both of the anodes are formed on a same face on a planar substrate. The filament is arranged parallel to the planar substrate at a position facing both of the anodes. Each of the grids is arranged, such that the grid faces the anode of a same pair at a first predetermined distance from the anode and has a second predetermined distance from the filament, between the anode and the filament. The vacuum tube further includes an intermediate filament fixing part fixing the filament at a position corresponding to an intermediate point between the anodes of the two pairs.

Abstract: LED based lamps are disclosed. In an embodiment, an LED based lamp includes a concave optical diffuser, a concave neodymium-doped glass bulb, a reflector, a printed circuit board that includes a plurality of light-emitting diodes (LEDs) configured to emit light, and a heat sink body. The concave optical diffuser has a first interior volume, and the concave neodymium-doped glass bulb is positioned within the first interior volume. The neodymium-doped glass bulb defines a second interior volume, and both the reflector and the printed circuit board are positioned within the second interior volume. The reflector includes a sloped annular wall with an inner reflective surface and an outer reflective surface, and a bottom portion of the reflector is connected to the printed circuit board. The heat sink is thermally connected to the printed circuit board and to the reflector.

Abstract: An organic light emitting diode, including: a substrate; a first cavity electrode in a first micro-cavity region of the substrate; a first transparent electrode of a first thickness in the first micro-cavity region, the first transparent electrode overlaps beyond a first side of the first cavity electrode; a first emissive layer in electrical connection with the first transparent electrode; and a cathode layer on the first emissive layer.

Abstract: A lamp comprises an optically transmissive enclosure and a base. An LED assembly is located in the enclosure and is operable to emit light when energized through an electrical path from the base. The LED assembly comprises an LED and a lumophoric dome that surrounds the LED. A partially reflective pad is on the lumophoric dome for manipulating the pattern of light emitted from the lumophoric dome. A heat sink comprises a heat dissipating portion that is at least partially exposed to the ambient environment and a heat conducting portion that is thermally coupled to the LED. An optically transmissive lens emits light from the enclosure where the lens comprises an annular area defined by a textured surface and a transparent area interior of the annular area.

Abstract: The present disclosure provides an OLED structure. The OLED structure includes a cathode layer, an organic light emitting layer, and an anode layer. The organic light emitting layer is located between the cathode layer and the anode layer. A reflective layer is formed under the cathode layer and the anode layer, an insulation isolation layer is formed on the reflective layer. In the present disclosure, structural modification is performed on the anode of the OLED structure to directly avoid possibility of hill lock in the anode. Thus, improvement in the reliability, productivity and yield of the OLED is ensured.

Abstract: Lighting systems include a light-transmissive tube and a light source assembly disposed to inject light into a cavity defined by the tube. The cavity extends along a longitudinal axis. At least a portion of the tube includes an inner structured surface facing the cavity, and an outer structured surface facing away from the cavity. The inner structured surface is configured to direct a first portion of the injected light towards the outer structured surface, and a second portion of the injected light back into the cavity. The inner structured surface includes elongated first features and the outer structured surface includes elongated second features. At least one of the elongated first features and the elongated second features are oriented obliquely relative to the longitudinal axis such that they form respective helixes along the tube.

Abstract: An organic light emitting display apparatus including sub pixels, each of the sub pixels including: first and second electrodes, the second electrode extending over the first electrode; and an intermediate layer disposed between the first and second electrodes, the intermediate layer including an emission layer, wherein a first portion of the first electrode, the second electrode, and the intermediate layer extends within a weak resonance region, the weak resonance region being configured to induce a first resonance of light generated by the emission layer between the first and second electrodes, and a second portion of the first electrode, the second electrode, and the intermediate layer extends within a strong resonance region, the strong resonance region being configured to induce a second resonance of light generated by the emission layer between the first and second electrodes, the second resonance being stronger than the first resonance.

Abstract: A lens includes a first lens section and a second lens section, which are integrally formed. The first lens section is formed in a hemispherical shell shape including a first recess opened toward one side of an optical axis direction in which light from a light source is made incident. The second lens section is formed in a hemispherical shell shape including a second recess opened toward the other side of the optical axis direction.

Abstract: The present invention relates to an LED light bulb emitting light rays in a downward direction comprising a lamp cap, a base, a lamp body and a lamp cover, characterized in that, a reflector assembly is arranged in the center of a spherical cavity of the lamp cover; the reflector assembly is composed of a reflector support and a reflector fastened to the reflector support; the reflector support is composed of a small-diameter upper ring, a large-diameter lower ring, a plurality of poles connecting the upper ring and the lower ring, and a fastener at the bottom of the lower ring for fastening the reflector; the reflector is composed of a trumpet-shaped milky cover and a hook fastener arranged on an inner ring surface of an opening at the bottom of the cover for fastening the fastener of the reflector support.

Abstract: A display device having a plurality of light-emitting elements that construct picture elements aligned on a TFT substrate in a formation of a matrix. The display device includes the plurality of light-emitting elements each having a flat surface portion and including a light-emitting layer, an anode, and a cathode; a plurality of driver elements each coupled to the light-emitting element; a plurality of capacitor elements each of which is coupled to the light emitting element and receives an image signal; a plurality of switching elements each of which is coupled to the capacitor element and the light emitting element and control input of the image signal to the capacitor; and an insulation layer having a contact hole formed over the driver element. The anode is formed on the insulation layer and coupled to the driver element via the contact hole.

Abstract: A substrate includes: a plurality of pixels arranged two-dimensionally on a common wiring substrate, and each including a plurality of types of light emitting elements that differ from one another in emission color; a plurality of light-scattering sections each provided for a corresponding one of the pixels, and each provided above the corresponding one of the pixels; and a light-shielding section provided in a gap between adjacent ones of the pixels, or provided in an opposing region that opposes the gap when viewed in a normal direction of the wiring substrate.

Abstract: An LED light bulb includes a holder for electrically connecting with a power source, an LED mounted on the holder, an envelope mounted on the holder and covering the LED, and a light dispersing plate attached to an inner surface of the envelope. The light dispersing plate is made of a transparent material with a plurality of irregular air bubbles therein. Light generated by the LED and radiating to the envelope is refracted, reflected and scattered by the bulbs before the light emits out of the LED light bulb.

Abstract: Disclosed are a light source module and a lighting apparatus having the same. The light source module includes a body having a cavity, a plurality of lead frames in the cavity, a light emitting chip on at least one of the lead frames, a polymer layer disposed on the body to refract light emitted from the light emitting chip, a first electrode layer disposed on the polymer layer to emit incident light, and a second electrode layer interposed between the polymer layer and the body to transmit the light emitted from the light emitting chip.

Abstract: A broadband light illuminator of an optical inspector for optically detecting defects of an inspection object may include an electrode-less chamber including a plasma area from which broadband light is generated; a first energy provider, exterior to the chamber, configured to provide first energy for ionizing high pressure gases to form ionized gases in the chamber; a second energy provider, exterior to the chamber, configured to provide second energy for transforming the ionized gases into a plasma state to form the plasma area at a central portion of the chamber; an elliptical reflector having a first focus at which the chamber is positioned and a second focus such that the broadband light is reflected from the elliptical reflector toward the second focus; and a lens unit focusing the reflected broadband light onto the inspection object to form an inspection light for detecting the defects of the inspection object.

Abstract: Provided are a light source device and a semiconductor manufacturing apparatus including the same. The light source device includes a light-emitting lamp. The light source device includes a laser generator configured to generate and direct a laser beam to the light-emitting lamp. The light source device includes a recycling optical element configured to redirect the laser beam to the light-emitting lamp. The recycling optical element includes a first recycling optical modulator configured to change the phase of the laser beam.

Abstract: A display device having a plurality of light-emitting elements that construct picture elements aligned on a substrate in a formation of a matrix. The light-emitting element includes a light-emitting device having a flat surface portion and including a light-emitting layer and an anode. A driver element is connected with the light-emitting element, and an insulation layer having a contact hole formed over the driver element. The anode is formed on the insulation layer and is connected to the driver element via the contact hole. A tilted reflective surface is provided in a peripheral area surrounding the flat surface portion of the light-emitting device and has a tilt angle with respect to the flat surface portion of the light-emitting device. The tilted reflective surface is provided on a surface of a slope of a bank provided on the substrate and formed to cover the contact hole.

Abstract: Micro discharge devices, methods, and systems are described herein. One device includes a non-conductive material, a channel through at least a portion of the non-conductive material having a first open end and a second open end, a first electrode proximate to a first circumferential position of the channel between the first open end and the second open end, a second electrode proximate to a second circumferential position of the channel between the first open end and the second open end, a discharge region defined by a portion of the channel between the first electrode and the second electrode, an optical emission collector positioned to receive an optical emission from the discharge region; and a discharge shielding component between the discharge region and the optical emission collector.

Abstract: An optical film includes: a liquid crystal coating; and a base layer on the liquid crystal coating, wherein the liquid crystal coating has reversed wavelength dispersion and in-plane retardation for a reference wavelength ranging from 126 nm to 153 nm, and the base layer has in-plane retardation ranging from about 0 to about 50 nm and out-of-plane retardation ranging from about 0 nm to about 100 nm.

Abstract: A LED lamp and a light effect improving method thereof. A bulb shell (2) is covered on LED beads (3), and is mounted in a reflection cup (1). The bulb shell (2) is used for processing a primary optical process for the light emitted by the LED beads (3). The reflection cup (1) is used for processing a secondary optical process for the light which is subjected to the primary optical process performed by the bulb shell (2). By the functions such as refraction, scattering, diffusion and the like of the bulb shell (2), the primary emergent light emitted from the LED beads (3) is subject to the primary optical process such as mixing, scattering and so on, so as to realize the treatment effect that the light is emitted from the three-dimensional surface of the bulb shell (2). The reflection cup (1) performs the secondary optical process, so as to reflect the scattering light within a certain angle range.

Abstract: An electronic device may be provided with a display such as a liquid crystal display. The liquid crystal display may have a color filter layer, a thin-film-transistor layer, and a layer of liquid crystal material between the color filter layer and the thin-film-transistor layer. A lower polarizer may be formed under the thin-film-transistor layer. An upper polarizer may be formed on the color filter layer. A shielding antireflection layer may be formed on the upper polarizer. The shielding antireflection layer may serve both as a shielding layer that protects against display damage due to electrostatic charge and as an antireflection coating that helps to minimize reflections from the surface of the display. The shielding antireflection layer may include low and high index of refraction layers and a conductive layer such as a transparent conductive oxide layer that provides shielding.

Abstract: A light assembly with light-mixing function includes a case having an assembling room defined therein and an assembling opening at a top thereof, the assembling opening communicating with the assembling room, a light-mixing sheet sealing the assembling opening of the case, the light-mixing sheet having at least one array set defined thereon, the array set having a plurality of fillisters uniformly defined on the light-mixing sheet, a volume of mixed chemical compound is entered into each fillister, at least one light source electrically set on a bottom of the assembling room. Under this arrangement, when the light assembly with light-mixing function is turned on, a plurality of light beams from the light source is caged in the mixed chemical compounds of the fillisters; and the mixed chemical compound shifts a wavelength of each of the light beams which are caged in the mixed chemical compounds.

Abstract: A substrate includes: a plurality of pixels arranged two-dimensionally on a common wiring substrate, and each including a plurality of types of light emitting elements that differ from one another in emission color; a plurality of light-scattering sections each provided for a corresponding one of the pixels, and each provided above the corresponding one of the pixels; and a light-shielding section provided in a gap between adjacent ones of the pixels, or provided in an opposing region that opposes the gap when viewed in a normal direction of the wiring substrate.

Abstract: Reflector lamps and their methods of manufacture are provided. The reflector lamp includes a parabolic housing defining an interior surface; a light source positioned within the housing; a reflector layer (e.g., including aluminum) on the interior surface of the housing; and an optical interference multilayer coating on the reflective layer. The optical multilayer coating generally includes a plurality of alternating low index layers and high index layers, with the low index layers having a refractive index that is about 1.38 to about 1.55 at 550 nm and the high index layers having a higher refractive index than the low index layers.

Abstract: A light emitting module according to embodiments includes a substrate. In addition, the light emitting module according to the embodiments includes a light emitting element which is provided on the substrate. In addition, the light emitting module according to the embodiments includes a reflecting member which is provided on the substrate, formed of a material containing silicon resin, of which Martens hardness of the material is any value in a range of 0.05 (N/mm2) or more and 10.0 (N/mm2) or less, and which reflects light which is emitted from the light emitting element.

Abstract: Exemplary embodiments are directed to methods, system, and devices for high-bay lighting. A device may comprise a plurality of reflectors coupled to a support structure. The device may further include a plurality of light emitting diodes (LEDs), wherein each LED of the plurality of LEDs is coupled to and positioned within a dedicated reflector of the plurality of reflectors.

Abstract: An organic light-emitting display device includes a first substrate and a second substrate that face each other, a pixel between the first substrate and the second substrate and the pixel emitting primary light toward one of the first and second substrates, and a black film arranged on another of the first and second substrates. The other of the first and second substrates being opposite to the one of the first and second substrates toward which the primary light is emitted.

Abstract: A lighting device includes: an LED module; a holding member which holds the LED module on its mount part, the mount part protruding in a direction of light emission from the LED module; and a light distribution lens which faces toward the mount part, the light distribution lens (i) receiving light emitted from the LED module and (ii) causing the light to travel to a first side to which the LED module emits the light and to a second side opposite to the first side.

Abstract: An LED package includes a LED structure that outputs light in a pattern about an axis and an optical coupling device with a central axis. The coupling device is positioned relative to the LED structure and accepts light from the LED. The coupling device includes a first dielectric interface surface that is substantially cylindrical with respect to the central axis, and a reflecting surface. The first dielectric interface surface accepts a first portion of light from the LED structure and directs it toward the reflecting surface. The reflecting surface accepts the light from the first dielectric interface surface and directs it toward the first dielectric interface surface in a direction substantially perpendicular to the central axis.

Abstract: A glass article that is ion-exchangeable and has at least one roughened surface. The roughened surface has a distinctness-of-reflected image DOI of less than 90 when measured at an incidence angle of 20°. A pixelated display system that includes such a glass article is also provided.

Abstract: A light emitting diode unit comprising a light emitting diode chip, a reflecting unit, and a light condenser is provided in this invention. The light emitting diode chip is disposed on a substrate for providing a plurality of first light beams. The reflecting unit is installed on the substrate, surrounding the light emitting diode chip for reflecting the first light beams emitted from the light emitting diode chip, and sufficiently directing the first light beams upward. The light condenser is provided above the light emitting diode chip, having a light-incident pattern and a light-emitting flat plane, wherein the light-incident pattern faces to the light emitting diode chip for sufficiently receiving and guiding the first light beams upward via the light-emitting flat plane.

Abstract: A light assembly with light-mixing function includes a case having an assembling room defined therein and an assembling opening at a top thereof, the assembling opening communicating with the assembling room, a light-mixing sheet sealing the assembling opening of the case, the light-mixing sheet having at least one array set defined thereon, the array set having a plurality of fillisters uniformly defined on the light-mixing sheet, a volume of mixed chemical compound is entered into each fillister, at least one light source electrically set on a bottom of the assembling room. Under this arrangement, when the light assembly with light-mixing function is turned on, a plurality of light beams from the light source is caged in the mixed chemical compounds of the fillisters; and the mixed chemical compound shifts a wavelength of each of the light beams which are caged in the mixed chemical compounds.

Abstract: A display device having a plurality of light-emitting elements that construct picture elements aligned on a substrate in a formation of a matrix. The light-emitting element includes a light-emitting device having a flat surface portion and including a light-emitting layer, an anode and a cathode, a driver element connected with the light-emitting element, an insulation layer having a contact hole formed over the driver element, wherein the anode is formed on the insulation layer and connected to the driver element via the contact hole, and a tilted reflective surface is provided in a peripheral area surrounding the flat surface portion of the light-emitting device and has a tilt angle against the flat surface portion of the light-emitting device, wherein the tilted reflective surface is provided on a surface of a slope of a bank that is provided on the substrate.

Abstract: Light emitter components with improved light extraction and related methods are disclosed. In one embodiment, the light emitter component can include a submount, at least one light emitting chip disposed over the submount, and a lens disposed over a portion of the light emitting chip. The lens can include an optical element. The optical element can be configured to affect light output from the at least one light emitting chip.

Abstract: Display element with at least one color-generating cell of the first type which has an emissive light source, and with at least one color-generating cell of the second type which has a reflective and/or transmissive and/or transflective light source, whereby each cell of the second type can be driven so that it makes visible one of the chromatic colors red, green, blue, magenta, cyan and yellow and the achromatic colors white and black, to compensate at least partly for the absence of the color impression created by at least one color-generating cell of the first type on account of the ambient light of the display element.