5results about How to "Reduced luminous efficiency" patented technology

The invention provides a display panel and a display device. The display panel comprises a driving substrate and a light-emitting carrier plate. The driving substrate comprises a silicon-based substrate and a driving circuit layer. The light-emitting carrier plate comprises a glass substrate, a light-emitting unit, a color-changing layer and a heating part. The color changing layer is arranged between the adjacent light emitting units, extends along a plane parallel to the glass substrate and is in contact with the edge of one side, close to the glass substrate, of each light emitting unit, and the orthographic projection of the color changing layer on the glass substrate covers the heating through hole in the glass substrate; and the heating part is filled in the heating through hole. When the temperature of the light-emitting unit is smaller than or equal to the threshold temperature, the color-changing layer has first transmissivity, and the heating part is used for heating under irradiation of light penetrating through the color-changing layer; when the temperature of the light-emitting unit is larger than the threshold temperature, the color-changing layer has second transmissivity smaller than the first transmissivity and is used for blocking light. The display panel can improve the influence of low temperature on the luminous efficiency of the luminous unit and reduce light leakage at the edge position of the luminous unit.

The invention provides a display panel and a display device. The display panel comprises a driving substrate, a light-emitting carrier plate and a thermoelectric conversion unit. The driving substrate includes a driving circuit layer and a plurality of driving electrodes. The light-emitting carrier plate comprises a glass substrate which is arranged on the driving substrate and is provided with a plurality of electrode through holes corresponding to the driving electrodes; the light-emitting units are arranged on the side, away from the driving substrate, of the glass substrate in an array mode and electrically connected with the corresponding driving electrodes through the electrode through holes. The thermoelectric conversion units are arranged between the adjacent light-emitting units, one side of each thermoelectric conversion unit is close to the light-emitting units, and the other side is close to the driving substrate; and the thermoelectric conversion unit is used for generating a potential difference under the action of a temperature difference between the driving substrate and the light-emitting unit, and is also used for generating a temperature difference between one side close to the light-emitting unit and one side close to the driving substrate under the action of driving current. The display panel can improve the influence of the temperature difference between the light-emitting carrier plate and the driving substrate on the characteristics of the driving device and the light-emitting efficiency of the light-emitting unit.

This application provides a liquid-cooled lamp, belonging to the field of lighting fixture technology, including a housing, a lighting assembly, a front liquid-cooling component, and a rear liquid-cooling component. The housing has an illumination cavity. The lighting assembly is disposed within the housing to generate light directed towards the illumination cavity. The front liquid-cooling component is disposed within the housing and located on the side of the lighting assembly facing the illumination cavity. The front liquid-cooling component is used to connect with the lighting assembly to reduce the temperature of the side of the lighting assembly facing the illumination cavity. The rear liquid-cooling component is disposed within the housing and located on the side of the lighting assembly away from the illumination cavity. The rear liquid-cooling component is used to connect with the lighting assembly to reduce the temperature of the side of the lighting assembly away from the illumination cavity. Compared to traditional single-sided heat dissipation or air cooling methods, the liquid-cooled lamp provided by this application has a larger heat dissipation area and higher heat exchange efficiency with its double-sided liquid-cooling design, which can quickly reduce the lamp assembly temperature and avoid light decay or shortened lifespan due to overheating.

The utility model relates to a photovoltaic - display integration quantum dot backlight module of display technical field, including photovoltaic element layer, optical coupling layer, quantum dot film layer and conductive and optical modulation layer who laminated and bonded in proper order, photovoltaic element layer is silicon -based solar cell panel, optical coupling layer includes high light transmittance polymer base, and the upper surface of high light transmittance polymer base is distributed micron -sized prism array or diffusing reflection particle, and the lower surface of high light transmittance polymer base is plated with anti -reflective film, quantum dot film layer includes main part and the perovskite quantum dot of embedding main part, and conductive and optical modulation layer includes conductive layer and optical modulation layer. The utility model reduces the dependency on power supply, realizes two -way light energy utilization, reduces power consumption, and the display picture color is more bright and colorful, real, improves optical uniformity while isolating external interference, ensures long -term stable light emission under the complex environment outdoors, relieves thermal stress, prevents material corrosion and cracking, and the module stability is high.

The utility model discloses a high light -efficient corn lamp, including lamp holder seat, lamp body, lamp shade and bottom cover, the lamp holder seat locates one end of lamp body, bottom cover locates the other end of lamp body, the lamp shade is located lamp body's outer surface, the lamp body includes heat dissipation main part and FCOB lamp strip, the heat dissipation main part is cylindrical, the front of heat dissipation main part is equipped with the mounting groove, the back of heat dissipation main part is equipped with a plurality of vertical fins, FCOB lamp strip can be detachably installed in mounting groove, bottom cover is circular, and bottom cover is installed in the bottom of heat dissipation main part, the back of heat dissipation main part and the bottom cover of circular form heat dissipation channel, and heat dissipation main part directly carries out heat dissipation to FCOB lamp strip, and the vertical fin of heat dissipation main part back increases the heat dissipation surface area, and heat dissipation channel is favorable to heat rapid discharge, can effectively give FCOB lamp strip heat dissipation, prevents the temperature of FCOB lamp strip from being too high and leads to luminous efficiency to drop.