Provided are a display panel and a display device. The display panel includes a display area and a non-display area surrounding the display area, the display area includes a first rectangular area and a first special-shaped area disposed adjacent to the first rectangular area, and the non-display area includes a second rectangular area adjacent to the first rectangular area and a second special-shaped area adjacent to the first special-shaped area. The display area includes pixel units arranged in an array, and a plurality of shift registers are disposed in the second rectangular area and the second special-shaped area, where each of the plurality of shift registers is connected to a row of pixel units. The second special-shaped area includes a laser cutting affected area, where none of the plurality of shift registers is disposed in at least part of the laser cutting affected area.

Provided are a display panel and a display device. The display panel includes a display area and a non-display area surrounding the display area, the display area includes a first rectangular area and a first special-shaped area disposed adjacent to the first rectangular area, and the non-display area includes a second rectangular area adjacent to the first rectangular area and a second special-shaped area adjacent to the first special-shaped area. The display area includes pixel units arranged in an array, and a plurality of shift registers are disposed in the second rectangular area and the second special-shaped area, where each of the plurality of shift registers is connected to a row of pixel units. The second special-shaped area includes a laser cutting affected area, where none of the plurality of shift registers is disposed in at least part of the laser cutting affected area.

A display module, a display screen and a display system are disclosed. The display module comprises a frame and multiple display unit boards assembled and installed on the frame to form a display surface. The frame comprises a border and a support frame installed in the border. Each display unit board comprises a circuit board and multiple pixel points installed on a front side of the circuit board, wherein a back side of the circuit board is installed on the border and the support frame, and each pixel point includes at least one LED chip. According to the display module of the invention, multiple display unit boards are assembled on the frame to form a display surface.

A minimum voltage detector circuit is disclosed. The circuit includes a plurality of LED strings each having a plurality of series-coupled LEDs. The minimum voltage detector circuit is configured to detect a minimum voltage from among the plurality of LED strings, and also to perform open/short detection among the plurality of LED strings. The minimum voltage detector circuit includes a plurality of voltage comparators and correspondingly coupled replica circuits. Each of the voltage comparators includes an amplifier having a first input coupled to a cathode of a last LED of one of the plurality of LED strings, an output, and a second input coupled to the output. Each voltage comparator further includes a replica circuit coupled to the amplifier. The replica circuit is configured to maintain an output transistor of the amplifier in an active state when the amplifier is in an unbalanced state.

To suppress degradation of a transistor. A method for driving a liquid crystal display device has a first period and a second period. In the first period, a first transistor and a second transistor are alternately turned on and off repeatedly, and a third transistor and a fourth transistor are turned off. In the second period, the first transistor and the second transistor are turned off, and the third transistor and the fourth transistor are alternately turned on and off repeatedly. Accordingly, the time during which the transistor is on can be reduced, so that degradation of characteristics of the transistor can be suppressed.

To suppress degradation of a transistor. A method for driving a liquid crystal display device has a first period and a second period. In the first period, a first transistor and a second transistor are alternately turned on and off repeatedly, and a third transistor and a fourth transistor are turned off. In the second period, the first transistor and the second transistor are turned off, and the third transistor and the fourth transistor are alternately turned on and off repeatedly. Accordingly, the time during which the transistor is on can be reduced, so that degradation of characteristics of the transistor can be suppressed.

Apparatuses, methods, and systems are taught that convey information in a mirror to a user. A glass layer has a front side and a back side. The glass layer further includes a first region. The first region has a first optical property. A second region has a second optical property. The first optical property is different than the second optical property. A first boundary exists where the first region meets the second region and the first boundary is shaped to convey information when the second region is illuminated from the back side and the glass layer is viewed from the front side by the user. When the second region is not illuminated from the back side the first region and the second region provide substantially the same reflection when the glass layer is viewed from the front side by the user, and the first boundary does not convey information.

The present disclosure provides a display device, including first to fourth LEDs, a line structure, and first to fourth lines. The second LED is arranged in a first direction corresponding to the first LED. The fourth LED is arranged in a second direction corresponding to the third LED. The line structure includes first to third line segments. The first line is coupled to the first LED. The second line is coupled to the second LED. The third line is coupled to the third LED. The fourth line is coupled to the fourth LED. A portion of the first line and a portion of the second line are in parallel with the first line segment, a portion of the third line is in parallel with the second line segment, and a portion of the fourth line is in parallel with the third line segment.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for displaying an image on a flat panel display with an array of pixels. A method includes receiving image data including a grayscale value for each pixel; determining a grayscale delta for each pixel where the grayscale delta is a variation between the grayscale value for a given pixel addressable by a first scan line and the grayscale value for another pixel addressable by a scan line addressed prior to the first scan line; determining an aggregated grayscale delta for the first scan line; comparing a magnitude of the aggregated grayscale delta to a threshold value corresponding to a data signal that results in line crosstalk; modifying the image data when the magnitude of the aggregated grayscale delta equals or exceeds the threshold value, and displaying the image on the flat panel display using the modified image data.

Subject matter disclosed herein relates to arrangements and techniques that provide for using a wavelength specific illumination for illuminating a display, for example an electrowetting display. The electrowetting display comprises a first substrate and a second substrate. A plurality of pixel regions is provided between the first substrate and the second substrate. The electrowetting display further comprises a first fluid within the pixel regions and on the first substrate. The first fluid comprises one or more dyes and a second fluid is disposed on the first fluid. The second fluid is substantially immiscible with the first fluid. An illumination layer is included between the first substrate and the second substrate. The illumination layer comprises one or more LEDs and at least one of the LEDs produces light at a specific wavelength corresponding to a wavelength of absorption of one of the one or more dyes.