A display module and system applications including a display module are described. The display module may include a display substrate including a front surface, a back surface, and a display area on the front surface. A plurality of interconnects extend through the display substrate from the front surface to the back surface. An array of light emitting diodes (LEDs) are in the display area and electrically connected with the plurality of interconnects, and one or more driver circuits are on the back surface of the display substrate. Exemplary system applications include wearable, rollable, and foldable displays.

A display module and system applications including a display module are described. The display module may include a display substrate including a front surface, a back surface, and a display area on the front surface. A plurality of interconnects extend through the display substrate from the front surface to the back surface. An array of light emitting diodes (LEDs) are in the display area and electrically connected with the plurality of interconnects, and one or more driver circuits are on the back surface of the display substrate. Exemplary system applications include wearable, rollable, and foldable displays.

A display device and a terminal device are disclosed. The display device includes a main body and a cover body rotatably connected to the main body, the main body includes a first display screen on a side, close to the cover body, of the main body, the cover body is provided with an accommodating cavity penetrating through the cover body in a direction perpendicular to the first display screen, the cover body includes a second display screen in the accommodating cavity, the second display screen is stacked on the first display screen in the direction perpendicular to the first display screen, and the second display screen is a transparent display screen.

A LCD and LED hybrid display screen has a LCD display screen, a LED display screen overlapping with the LCD display screen, and a drive device for driving the LCD display screen and the LED display screen. The LED display screen has at least one LED pattern and each LED pattern comprises a plurality of strokes is corresponding to at least one LED lamp. The drive device drives the LCD display screen to display at least one LCD display pattern and driving the LED lamp to emit light. A LED display pattern formed by a light emitted by the LED lamp and the LCD display pattern are in one-to-one correspondence. A LCD and LED clock with a LCD and LED hybrid display screen is further provided. Different ambient brightness can be adapted while the power consumption can be reduced through overlapping the LCD display screen with the LED display screen.

A LCD and LED hybrid display screen has a LCD display screen, a LED display screen overlapping with the LCD display screen, and a drive device for driving the LCD display screen and the LED display screen. The LED display screen has at least one LED pattern and each LED pattern comprises a plurality of strokes is corresponding to at least one LED lamp. The drive device drives the LCD display screen to display at least one LCD display pattern and driving the LED lamp to emit light. A LED display pattern formed by a light emitted by the LED lamp and the LCD display pattern are in one-to-one correspondence. A LCD and LED clock with a LCD and LED hybrid display screen is further provided. Different ambient brightness can be adapted while the power consumption can be reduced through overlapping the LCD display screen with the LED display screen.

A display module and system applications including a display module are described. The display module may include a display substrate including a front surface, a back surface, and a display area on the front surface. A plurality of interconnects extend through the display substrate from the front surface to the back surface. An array of light emitting diodes (LEDs) are in the display area and electrically connected with the plurality of interconnects, and one or more driver circuits are on the back surface of the display substrate. Exemplary system applications include wearable, rollable, and foldable displays.

A display module and system applications including a display module are described. The display module may include a display substrate including a front surface, a back surface, and a display area on the front surface. A plurality of interconnects extend through the display substrate from the front surface to the back surface. An array of light emitting diodes (LEDs) are in the display area and electrically connected with the plurality of interconnects, and one or more driver circuits are on the back surface of the display substrate. Exemplary system applications include wearable, rollable, and foldable displays.

A sleep training clock can be configured to assist in sleep training. The sleep training clock is shaped like a robot having a face, a torso, and two legs; two LEDs disposed in the face and three LEDs disposed in the torso; and a digital clock face disposed in the torso. Additionally, circuitry for performing sleep training is configured to determine whether the electronic device is in a wake state and turn on the two LEDs disposed in the face and turn off the three LEDs disposed in the torso in response, determine whether the electronic device is in a sleep state and turn off the two LEDs disposed in the face and turn on the three LEDs disposed in the torso in response.

A sleep training clock can be configured to assist in sleep training. The sleep training clock is shaped like a robot having a face, a torso, and two legs; two LEDs disposed in the face and three LEDs disposed in the torso; and a digital clock face disposed in the torso. Additionally, circuitry for performing sleep training is configured to determine whether the electronic device is in a wake state and turn on the two LEDs disposed in the face and turn off the three LEDs disposed in the torso in response, determine whether the electronic device is in a sleep state and turn off the two LEDs disposed in the face and turn on the three LEDs disposed in the torso in response.

A watch dial having an organic light-emitting diode display. The display includes an anode, a structured layer of coloured resin, which is preferably photosensitive, in contact with the anode. The display further includes an organic layer stack in contact with the anode and with the structured coloured resin layer. At least one of the organic layers is a light-emitting layer. The display also includes a cathode in contact with the organic layer stack. Also, a watch including the dial and a method for manufacturing the dial.