The disclosure discloses a reflective electrochromic display panel, and the reflective electrochromic display panel includes: an upper substrate, a common electrode layer, an electrochromic layer, a pixel electrode layer and a lower substrate sequentially arranged from top to bottom. The electrochromic layer includes a red electrochromic layer, a green electrochromic layer and a blue electrochromic layer. The electrochromic layers reflecting corresponding lights upon receiving a voltage, and the reflection light of the electrochromic layers is zero when no voltage is received. The display panel of the disclosure is equipped with an electrochromic layer, and the different voltage characteristics of the electrochromic layer are used to improve the utilization of light and visual angle limitation of the display panel, thereby improving the performance of the liquid crystal display.

A display panel and a display device are provided, wherein the display panel includes a first substrate, at least one reflective structure, signal traces, and a control circuit. The at least one reflective structure is disposed on the first substrate. The at least one reflective structure includes a reflective layer and an electrochromic layer disposed on the reflective layer. The signal traces are disposed on the first substrate. An orthogonal projection of the at least one reflective structure on the first substrate overlaps at least part of an orthogonal projection of the signal traces on the first substrate. The control circuit is disposed on the first substrate. The control circuit is connected to the electrochromic layer. The present disclosure improves utilization of the backlight and improves display performance.

A distributed device control system is provided. The system includes a plurality of windows, each window of the plurality of windows having at least one electrochromic window, a voltage or current driver for the at least one electrochromic window, and a first control system local to the window. The system includes a plurality of window controllers, each window controller configured to couple to one or more of the plurality of windows and having a second control system, for the one or more of the plurality of windows, local to the window controller. The system includes a command and communication device configured to couple to each of the plurality of window controllers, configured to couple to a network, and having a third control system, for the plurality of windows, wherein control of the plurality of windows is distributed across the plurality of windows, the plurality of window controllers, the command and communication device, and a portion of the network.

An OLED display panel providing color compensation without overdriving light emitting units includes the light emitting units and a substrate. Each light emitting unit includes a light emitting element and an electrochromic element. The light emitting element is on a side of the electrochromic element away from the substrate. The electrochromic element includes first anode and cathode, and an electrochromic layer between them. The light emitting element includes second anode and cathode, and light emitting material between them. A portion of the second anode is shared with the first cathode. The present disclosure also provides a method for making such OLED display panel. The OLED display panel uses the electrochromic elements for color compensation, reducing the energy consumption of the display panel and prolonging service life.

A mask includes a base substrate, control switches provided on the base substrate, and electrochromic film components provided on the base substrate. The control switches and the electrochromic film components are connected in one-to-one correspondence. The control switches are configured to, according to at least one light shielding region and a light transmitting region of the mask, control light transmittances of the electrochromic film components in one-to-one correspondence.

A display device includes a display panel including a plurality of pixels each having a plurality of sub-pixels; and a light path adjustment film on the display panel, wherein the light path adjustment film includes a first base film, and a pattern layer on a surface of the first base film, wherein the pattern layer includes a plurality of first patterns having a first refractive index, and a plurality of second patterns between the first patterns and having a second refractive index less than the first refractive index, and wherein the first pattern includes a top surface spaced apart from the display panel and parallel with the display panel, a bottom surface between the top surface and the display panel, and a slanted surface connecting the top surface and the bottom surface.

A display device includes: a backlight unit configured to emit light; a first substrate positioned in a path of a light emitted from the backlight unit and including a first pixel and a second pixel displaying different colors from each other; a second substrate facing the first substrate; a light amount control layer positioned between the first substrate and the second substrate; a gate line disposed on the first substrate and extending in a first direction; a storage line disposed on the substrate and spaced apart from the gate line; and a data line disposed on the first substrate and extending in a second direction intersecting the first direction. The first pixel includes a first thin film transistor, a first pixel electrode, and a first light conversion unit. The second pixel electrode includes a second thin film transistor, and a second light conversion unit.

Discussed is a lighting apparatus having an organic light-emitting element configured as a transparent window and provided with an optical filter to prevent transmission of light when light having an intensity higher than a preset intensity is incident on the lighting apparatus so as to allow the lighting apparatus to be driven in a transparent mode, an opaque mode, and a lighting mode. The organic light-emitting element includes first and second electrodes and an organic emission layer disposed between the first electrode and the second electrode to emit light when a signal is applied thereto. The organic light-emitting element performs single-side emission or dual-side emission. The optical filter is formed of a photochromic material or an electrochromic material to make the lighting apparatus be opaque so as to adjust the transmissivity of light when the light having the intensity higher than the preset intensity is incident on the lighting apparatus.

A distributed device control system is provided. The system includes a plurality of windows, each window of the plurality of windows having at least one electrochromic window, a voltage or current driver for the at least one electrochromic window, and a first control system local to the window. The system includes a plurality of window controllers, each window controller configured to couple to one or more of the plurality of windows and having a second control system, for the one or more of the plurality of windows, local to the window controller. The system includes a command and communication device configured to couple to each of the plurality of window controllers, configured to couple to a network, and having a third control system, for the plurality of windows, wherein control of the plurality of windows is distributed across the plurality of windows, the plurality of window controllers, the command and communication device, and a portion of the network.

A liquid crystal display device according to the present invention includes an array substrate and a CF substrate. The CF substrate includes a lattice-shaped light shielding pattern between pixel electrodes and a columnar spacer at an intersection of the light shielding patterns. The array substrate and the CF substrate are disposed so as to face each other with a liquid crystal layer interposed therebetween. The intersection includes a portion in which signal lines intersect each other and a portion in which the signal lines do not intersect each other, whereby a step is provided on a surface of the array substrate. The columnar spacer includes a main spacer in the portion in which the signal lines intersect each other and a sub-spacer in the portion in which the signal lines do not intersect each other.