14 results about "Green led" patented technology

A display apparatus includes: a liquid crystal panel, a backlight unit configured to provide light to the liquid crystal panel, a quantum dot (QD) sheet arranged the liquid crystal panel and the backlight unit, and a processor configured to control the liquid crystal panel and the backlight unit. The backlight unit may include a substrate and a plurality of dimming blocks arranged in a plurality of rows and columns and each including a red light-emitting diode (LED), a green LED, and a blue LED. The processor may be configured to, based on an ON signal of an LED having a color identical to a color of QD particles of the QD sheet, control the backlight unit to turn the blue LED on together with the LED that receives the ON signal.

The application relates to the technical field of light emitting diodes, and discloses a high-hydrolysis-resistant LED epitaxial wafer and a preparation method thereof. The high-hydrolysis-resistant LED epitaxial wafer comprises a substrate, and a buffer layer, a U-shaped GaN layer, an N-type semiconductor layer, a superlattice layer, a multi-quantum well layer, an electron blocking layer and a P-type semiconductor layer are sequentially arranged on the substrate; wherein the N-type semiconductor layer is a periodic structure formed by cyclically and alternately growing a GaN layer and a Si-doped AlGaN layer; and the superlattice layer comprises periodically and alternately stacked Si-doped GaN layers and InGaN layers. By implementing the application, the hydrolysis resistance and the light emitting efficiency of a blue-green LED epitaxial wafer can be effectively improved, and the process is simple, and no additional chip process is needed.

This invention relates to the field of light guide plate manufacturing technology, and in particular to a method for manufacturing an anti-blue light composite light guide plate, comprising the following steps: Step 1, UV ink and blue light conversion structural material are respectively disposed on the light guide plate; Step 2, the light guide plate is fed into a UV curing oven for curing to form an anti-blue light composite light guide plate; In Step 1, the blue light conversion structure and UV ink are located on the same side or opposite side of the light guide plate. In this invention, step-by-step printing, inkjet printing or spin coating is used to combine the blue light conversion structure based on low-dimensional colloidal materials or organic mixed materials with printed light guide dots, converting harmful blue light of 400-440nm into longer wavelength visible light, reducing the harm of blue light to the human eye, and realizing healthy and green LED lighting.

A display apparatus may include: groups of light-emitting diodes (LEDs), each of the groups of LEDs including a red LED, a green LED, and a blue LED; and a processor configured to control the groups of LEDs. In a color vision deficiency mode, the processor may be configured to: obtain a color difference value between image blocks corresponding to the groups of LEDs; determine at least one from among a current weight of the red LED of a LED group, a current weight of the green LED of the LED group, and a current weight of the blue LED of the LED group, based on the color difference value between the groups of LEDs; and control a current supplied to the at least one from among the red LED, the green LED, and the blue LED, based on the image data and the current weight that is determined.

This display module comprises: a substrate on which a plurality of thin film transistors are formed; and a plurality of pixels disposed on the plurality of thin film transistors. Each of the plurality of pixels includes a red LED, a green LED, and a blue LED. Among the plurality of pixels, at least one pixel in which the red LED or the green LED does not emit light includes a light conversion layer provided on the blue LED.

Disclosed in the present invention is an AlGaInP yellow-green LED epitaxial wafer with high brightness, low leakage and high reliability. The epitaxial wafer comprises an N-type GaAs buffer layer, an N-type GaInP etch-stop layer, an N-type GaAs ohmic contact layer, an N-type AlGaInP current spreading layer, an N-type electron retardation layer, an N-type AlInP confinement layer, a multiple quantum well layer, a P-type AlInP confinement layer, a P-type GaP current spreading layer and a P-type GaP ohmic contact layer, which are sequentially grown on a GaAs substrate. An electron retardation layer, a graded quantum barrier thickness design, and a magnesium diffusion barrier layer are introduced, so as to effectively suppress electron leakage and magnesium diffusion, thereby reducing non-radiative recombination, and thus significantly improving the luminous efficiency and high-temperature operating stability of LEDs.

Battery pack for use with a portable device, including colored LEDs for presenting a high granularity battery charge state, are disclosed. One embodiment includes a red and a green LED, wherein solid and blinking patterns are presented by the LEDs to correspond to a relative battery charge state. Other battery state indications, such as failure states, may also be presented on the colored LEDs.

The application provides a portable charging pile detection device, and relates to the technical field of charging piles.The device comprises a high-voltage sampling module, which is used for collecting sampling signals corresponding to a first phase line, a second phase line, a third phase line, a zero line and a ground line of a charging pile incoming copper plate; a detection module, which is used for performing phase detection, zero fire line polarity detection and ground detection on the respective corresponding sampling signals respectively to obtain a plurality of detection signals; a logic judgment module, which is used for outputting a high-level logic signal when the plurality of detection signals are all high-level, outputting a low-level logic signal when there is a low-level in the plurality of detection signals, and outputting an inverted logic signal opposite to the level of the logic signal; and an LED module, which comprises a green LED used for lighting or extinguishing based on the level of the logic signal and a red LED used for lighting or extinguishing based on the level of the inverted logic signal. The device is used for simplifying the charging pile detection process.

Provided is a display module and method of repairing same. The display module includes: a substrate including a plurality of thin film transistors; and a plurality of pixels on the plurality of thin film transistors, wherein each of the plurality of pixels includes a red light-emitting diode (LED), a green LED, and a blue LED, wherein the red LED or the green LED of at least one pixel, among the plurality of pixels, fails to illuminate, and wherein the at least one pixel includes a light conversion layer on an upper side of the blue LED of the at least one pixel.

The utility model relates to a moth-attracting and insect-killing device technical field discloses a novel green photovoltaic double -sided type variable light moth-attracting and insect-killing device, including support, the support top fixedly connected with second black plastic plate, the second black plastic plate inner wall both sides are all provided with acrylic plate, and the black purple yellow blue white green LED lamp strip is provided between two acrylic plates, and the first black plastic plate inner wall is provided with two second fixed plates, two second fixed plates one side all are fixedly connected with the plug rod, the first black plastic plate inner wall rear side fixedly connected with two U type boards, in the utility model, the black purple yellow blue white green LED lamp strip sets up multiple colors, can control different color lamp pearl luminescence and carries out timing, then pulls the pull ring, makes the spacing rod far away from the plug rod, and the jack on the double -sided transparent moth -catching board is covered on the plug rod.

A display apparatus according to the present disclosure comprises an image display unit, a backlight unit, and at least one processor. The backlight unit comprises: a substrate; and a plurality of dimming blocks arranged in a plurality of rows and a plurality of columns on the substrate, wherein each of the dimming blocks includes a red LED, a green LED, and a blue LED. In a color vision deficiency mode, the at least one processor may: acquire, on the basis of image data, color difference values between a plurality of image blocks of an image corresponding to the plurality of dimming blocks; determine, on the basis of the color difference values between the plurality of image blocks, at least one of a current weight for a red LED of one dimming block among the plurality of dimming blocks, a current weight for a green LED of the dimming block, and a current weight for a blue LED of the dimming block; and control, on the basis of the image data and the determined current weight, current supplied to at least one of the red LED of the dimming block, the green LED of the dimming block, and the blue LED of the dimming block.

In order to maintain the white balance ratio of the mixed white light, a pixel unit is provided, which is composed of four sub-pixels of red, green, blue, and another green colors, and these sub-pixels are composed of a red LED element, a first green LED element, a blue LED element and a second green LED element. A control element is used to control the four sub-pixels of red, first green, blue and second green correspondingly by outputting control signals through the control channels. Base on the adjustment of the current, the brightness ratio of the above three colors is still maintained at the ratio of 3:6:1 of the white balance, and the ratio of the white balance of the white light after being mixed is also maintained.

A breast cancer detection device using visible light, thermal infrared sensors, and image processing is a medical and oncology tool designed to address the limitations of X-ray technology, which is unsuitable for certain individuals, such as pregnant women, and to overcome the cost and inaccessibility issues associated with traditional equipment. When the device's head is placed around the breast area and activated, an electrical current flows from the rechargeable batteries to the programmed circuit board. Subsequently, the device's red and green LEDs light up, and the light intensity is adjusted using a volume knob. Opposite the LEDs, a camera is positioned to identify skin and breast irregularities and unevenness. Additionally, a thermal infrared sensor detects areas with higher temperatures compared to surrounding regions, which can indicate the presence of a tumor.

This invention discloses a high-brightness, low-leakage, and highly reliable AlGaInP yellow-green LED epitaxial wafer. The epitaxial wafer comprises, in sequence, an N-type gallium arsenide (GaAs) buffer layer, an N-type gallium indium phosphide (GaInP) etch stop layer, an N-type GaAs ohmic contact layer, an N-type aluminum gallium indium phosphide (AlGaInP) current spreading layer, an N-type electron blocking layer, an N-type aluminum indium phosphide (AlInP) confinement layer, a multiple quantum well (MQW) layer, a P-type AlInP confinement layer, a P-type gallium phosphide (GaP) current spreading layer, and a P-type GaP ohmic contact layer grown sequentially on a GaAs substrate. By introducing an electron blocking layer, a graded quantum barrier thickness design, and a magnesium diffusion barrier layer, the invention effectively suppresses electron leakage and magnesium diffusion, reduces non-radiative recombination, and significantly improves the luminous efficiency and high-temperature operational stability of the LED.