21 results about "Blue filter" patented technology

A display device may include a substrate, a light emitting structure on the substrate, a thin film encapsulation layer on the light emitting structure, a color filter layer on the thin film encapsulation layer and including a red color filter selectively transmitting a red light and a blue color filter selectively transmitting a blue light, and an overcoat layer, exhibiting two or more absorption wavelength bands and configured to provide wavelength-selective filtering including a green wavelength band, on the color filter layer and including at least one selected from a dye and a pigment, wherein an upper surface of the red color filter may be lower than an upper surface of the blue color filter.

An electrophoretic display device includes a pixel structure and a color filter array. In the pixel structure, an area of a blue pixel electrode is less than an area of a red pixel electrode, and the area of the blue pixel electrode is less than an area of a green pixel electrode. In the color filter array, areas of red, green, and blue filter units are all substantially the same and the red, green, and blue filter units are overlapped with the red, green, and blue pixel electrodes respectively. A ratio of the area of the red filter unit to the area of the red pixel electrode is RFF; a ratio of the area of the green filter unit to the area of the green pixel electrode is GFF; a ratio of the area of the blue filter unit to the area of the blue pixel electrode is BFF, and BFF>RFF≥GFF.

The present disclosure provides a display panel and a display device. The material composition of a red filter unit (201) of the display panel comprises a 1,5-substituted alkylamino anthraquinone red dye having a mass percentage content of 0.5-20%. The material composition of a blue filter unit (202) comprises a blue dye, the blue dye comprising at least one of a 1,4-substituted alkylamino blue dye or a hydroxy anthraquinone blue dye which has a mass percentage content of 0.5-20%. The material composition of a green filter unit (203) comprises a 1,4-substituted alkylamino anthraquinone green dye having a mass percentage content of 0.5-20%.

A display substrate, including: a flexible base substrate, a display structure layer, and a color filter layer. The flexible base substrate comprises: a first display region. The first display region comprises: at least one sub-display region and at least one light-transmissive region. The display structure layer comprises a plurality of first light-emitting units disposed on a flexible base substrate of the sub-display region. The color filter layer is arranged on a light exit side of the display structure layer and the at least one light-transmissive region. A color filter layer of the at least one light-transmissive region comprises a plurality of blue filter units, or a color filter layer of the at least one light-transmissive region includes: first red filter units, first green filter units, and first blue filter units which are periodically arranged.

The invention provides ophthalmic devices provided with improved blue filtering, mimicking the transmittance of the human ageing eye closer than hitherto possible. The invention furthermore provides methods to obtain such ophthalmic devices, as well as application thereof for prevention or treatment of a degenerative eye disease.

The present invention provides a display device in which a decrease in brightness is suppressed, and which can display an image with high color reproducibility even after long-term use. A display device (1A) is provided with: a light emitting diode (23); a color filter (33) including a red filter unit (33R), a green filter unit (33G), and a blue filter unit (33B); a wavelength conversion layer including a first wavelength conversion part (36R) and a second wavelength conversion part (36G), each of the wavelength conversion parts containing Eu2 +-activated phosphors; a functional layer that includes an ultraviolet shielding layer (51) that faces the light emitting diode (23) with the color filter (33) and the wavelength conversion layer interposed therebetween, and that has an ultraviolet shielding rate of 85% or more in accordance with JIS L1925: 2019; and a colored layer (52) that is interposed between the functional layer and the color filter (33) and contains a first coloring material having a maximum absorption wavelength in the range of 560-620 nm and a half-value width of the absorption spectrum in the range of 15-55 nm.

This application discloses a display panel, a display device, and a method for manufacturing the display panel. A substrate, an anode, a pixel defining layer, a light-emitting layer, and a cathode are arranged in sequence. The cathode covers the light-emitting layer and the pixel defining layer. The filter layer is disposed on a side of the cathode facing away from the substrate. The second light-emitting region corresponds to the blue color filter. The second light-emitting region includes a blue light-emitting layer made of a blue light emitting material.

An image sensor may include a substrate including a plurality of photoelectric conversion parts, and a first optical filter and a second optical filter on a top surface of the substrate and spaced apart from each other in a first direction. The first optical filter comprises a stack structure and an optical absorption layer covering the stack structure, the stack structure extending in the first direction, the stack structure comprises a metal pattern and a dielectric pattern on the metal pattern, and the second optical filter comprises at least one of a red color filter, a green color filter, and a blue color filter.

A display substrate, including: a flexible base substrate, a display structure layer, and a color filter layer. The flexible base substrate includes: a first display region. The first display region includes: at least one sub-display region and at least one light-transmissive region. The display structure layer includes a plurality of first light-emitting units disposed on a flexible base substrate of the sub-display region. The color filter layer is arranged on a light exit side of the display structure layer and the at least one light-transmissive region. A color filter layer of the at least one light-transmissive region includes a plurality of blue filter units, or a color filter layer of the at least one light-transmissive region includes: first red filter units, first green filter units, and first blue filter units which are periodically arranged.

The utility model provides a full-automatic whiteness instrument and a spectrum regulation and control mechanism thereof, and belongs to the technical field of paper quality detection. The device comprises a front switching plate and a rear switching plate which are arranged between a light source generator and an integrating sphere, an ultraviolet cut-off filtering module is arranged on the front switching plate, a light hole is further formed in the ultraviolet cut-off filtering module, a blue light filter and a green light filter are arranged on the rear switching plate, the front switching plate and the rear switching plate are connected with a switching mechanism, and the switching mechanism is connected with a light source generator. And the front switching plate and the rear switching plate are respectively driven by the switching mechanism to move so as to change the spectrum entering the integrating sphere light source. The switching mechanism adopts an independent driving strategy, the driving precision is high, and a front switching plate and a rear switching plate can be quickly driven to move to a target position so as to flexibly and quickly switch different measurement modes; the parallel stacking layout of the front switching board and the rear switching board is allowed, the space can be effectively saved, the overall structure is more compact, and the optical path integration problem of compact equipment is solved.

An electrophoretic display device includes a pixel structure and a color filter array. The area of the blue pixel electrode of the pixel structure is smaller than that of the red pixel electrode, and the area of the blue pixel electrode is smaller than that of the green pixel electrode. A red filter unit, a green filter unit and a blue filter unit in the color filter array have the same area and are respectively overlapped on the red pixel electrode, the green pixel electrode and the green pixel electrode. The ratio of the area of the red filter unit to the area of the red pixel electrode is RFF; the ratio of the area of the green filtering unit to the area of the green pixel electrode is GFF; the ratio of the area of the blue filtering unit to the area of the blue pixel electrode is BFF, and BFFgt; rFF > = GFF.

Disclosed is a light emitting display device including a substrate having first to fourth subpixels, first to fourth anodes provided respectively on the first to fourth subpixels, an emission unit provided on the first to fourth anodes, the emission unit including two or more blue stacks and a phosphorescent stack including at least a yellowish green emission layer and a green emission layer, a cathode provided on the emission unit, a red filter and a color conversion layer provided between the substrate and the first anode, a green filter provided between the substrate and the second anode, and a blue filter provided between the substrate and the third anode, wherein the first anode has a first thickness, and at least one of the second to fourth anodes has a second thickness greater than the thickness of the first anode.

A light-emitting display device according to one embodiment of the present specification may include a substrate including a red light-emitting part, a green light-emitting part, a blue light-emitting part, and a white light-emitting part spaced apart from each other; a red color filter provided in the red light-emitting part, a green color filter provided in the green light-emitting part, and a blue color filter provided in the blue light-emitting part; a first scattering pattern provided between the substrate and the green color filter; a second scattering pattern provided on the substrate of the white light-emitting part; an organic insulating layer covering the red color filter, the green color filter, the blue color filter, and the second scattering pattern; a light-emitting element provided on the organic insulating layer including a plurality of first electrodes spaced apart from each of the red light-emitting part, the green light-emitting part, the blue light-emitting part, and the white light-emitting part; and a bank exposing the red light-emitting part, the green light-emitting part, the blue light-emitting part, and the white light-emitting part of the plurality of first electrodes.

The utility model relates to the field of optical measurement, in particular to a distance measuring device of a measuring type narrow depth-of-field camera. The device comprises at least three monochromatic cameras, and each camera is configured to obtain a target object image in a preset depth-of-field range; comprising a red optical filter, a green optical filter and a blue optical filter and is installed in front of a lens of the monochromatic camera; and the driving motor is used for driving different optical filters in the rotary optical filtering assembly to be switched. The monochromatic photoreceptor and the rotary optical filter are combined, a smaller depth-of-field range can be obtained, a full-color image can be obtained finally, data are rapidly processed through image extraction and fusion, and the method is suitable for automatic driving and remote monitoring. The low-cost monochromatic camera is adopted to replace a color camera, the monochromatic photoreceptor and the rotationally-controlled optical filter are combined, the problem of precision waste can be solved, precision distribution can be flexibly adjusted, an efficient distance measurement scheme is provided, and the method is suitable for the field needing rapid distance information feedback.

The invention discloses an image sensor, a reading method thereof and electronic equipment, and relates to the technical field of image sensors. The image sensor comprises a pixel array, wherein the pixel array comprises a plurality of basic pixel units which are arranged in m rows and n columns; the pixel array is divided into an effective pixel area and an edge weak photosensitive pixel area; wherein the edge weak photosensitive pixel area at least comprises a first row of basic pixel units and a first column of basic pixel units; the basic pixel units in the effective pixel area are used for sensing light and converting the light into effective color pixel signals; the first row of basic pixel units and the first column of basic pixel units are provided with weak light-transmitting optical filters; the weak light transmission optical filter is a blue optical filter or a red optical filter; the control module is electrically connected with the pixel array; the signal bandwidth can be reduced, and the requirements for the establishment time and the driving capability of the driving circuit can be reduced.

An OLED display panel, a preparation method thereof and a display device are provided. The OLED display panel includes a light-emitting layer and a light filter layer. The light filter layer includes a color filter film. The color filter film includes at least two of a red filter film, a green filter film and a blue filter film. At least two color filter films of different colors are alternately arranged in the light filter layer.

A display apparatus includes a substrate including an emission area; a plurality of pixels disposed on the substrate in the emission area; a transistor in each of the plurality of pixels and an anode connected to the transistor; and an organic layer and a cathode on the anode, wherein the organic layer includes a first emission part, a charge generation layer on the first emission part, and a second emission part on the charge generation layer, wherein the first emission part emits light when a reverse driving is performed to the organic layer, and the second emission part emits light when a forward driving is performed to the organic layer.

This invention discloses a three-dimensional chlorophyll fluorescence imaging system for plants based on structured light vision, comprising: Step S1: constructing a three-dimensional chlorophyll fluorescence imaging system; Step S2: switching between measurement light source, photochemical light source, saturated pulse light source, and far-red light source in red filter mode to acquire chlorophyll fluorescence images of plants under different conditions; Step S3: turning on ordinary white light source, acquiring single-channel images of the plant sequentially in red, green, and blue filter modes, and fusing them to obtain a three-channel color image of the plant; Step S4: turning off all light sources, acquiring a dual-frequency twelve-step phase-shifting fringe image modulated by the plant in neutral filter mode, and reconstructing a three-dimensional point cloud model of the plant; Step S5: using the chlorophyll fluorescence image and the three-channel color image to render the three-dimensional point cloud model of the plant pixel by pixel to achieve three-dimensional chlorophyll fluorescence imaging of the plant.

The utility model discloses a novel quantum rod panel structure relates to quantum rod panel technical field, including hybrid backlight, the quantum rod luminous layer is bonded on hybrid backlight, and the TFT array layer is bonded on quantum rod luminous layer. The application provides a kind of novel quantum rod panel structure, by using two kinds of light sources of ultraviolet LED and blue LED in hybrid backlight, and using green light QR that can be excited by ultraviolet LED light source and red light QR that can be excited by blue LED light source in quantum rod luminous layer, so by adding a more pure blue LED, cooperate green light QR and red light QR these two QR materials, this kind of combination can provide high purity, high -efficient red light and green light peak and harmless blue light emission, so we can realize high color performance eye protection display through the special combination of QR LED without any blue filter and the software improvement of LCD display, reduce blue light hazard, and applicability is stronger.

A display device may include a substrate, a light emitting structure on the substrate, a thin film encapsulation layer on the light emitting structure, a color filter layer on the thin film encapsulation layer and including a red color filter selectively transmitting a red light, a green color filter selectively transmitting a green light, and a blue color filter selectively transmitting a blue light, and an overcoat layer on the color filter layer and including at least one selected from a dye and a pigment, wherein an upper surface of the red color filter may be lower than an upper surface of the green color filter and an upper surface of the blue color filter, and wherein a height of the upper surface of the green color filter and a height of the upper surface of the blue color filter may be equal to each other.

Provided is an image sensor including a light sensing element, a planarization layer disposed on the light sensing element, a color filter array layer disposed on the planarization layer, the color filter array layer including color filters, and a microlens disposed on the color filter array layer, wherein the color filters include a green filter, a blue filter and a red filter, and wherein a refractive index of the green filter is greater than 1.7 for a green light wavelength range of 500 nm to 570 nm.