A display apparatus having a noncontact input function is provided. The display apparatus has a first function of detecting, with a light-receiving device, light irradiated from a light source outside a display portion and blocked by a pointing object to recognize the position pointed by the pointing object, and a second function of detecting, with the light-receiving device, light irradiated from a light source inside or outside the display portion and reflected by the pointing object to recognize the position pointed by the pointing object. The display apparatus can operate by switching the first function and the second function in accordance with the intensity of the light irradiated from the light source outside the display portion.

A LED display module includes multiple pixel rows. A first pixel row includes a plurality of first pixel units. Each of the plurality of first pixel units includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. Sub-pixels of the plurality of first pixel units form at least one first sub-pixel row. A first row of the at least one first sub-pixel row includes at least two types of the first sub-pixel, the second sub-pixel, and the third sub-pixel. A last pixel row includes multiple second pixel units. Each of the plurality of second pixel units includes a first sub-pixel, a second sub-pixel,and a third sub-pixel. Sub-pixels of the plurality of second pixel units form at least one second sub-pixel row. A last row of the at least one second sub-pixel row includes at least two types of the first sub-pixel, the second sub-pixel, and the third sub-pixel

Provided are an LED display pixel structure, an LED display module, and an LED display screen. The LED display pixel structure includes an LED pixel unit (1) and a layered extraction structure arranged above the LED pixel unit (1). The layered extraction structure is configured to receive light from the LED pixel unit (1) and emit the light. The LED display pixel structure includes a first retardation film layer (31), a linear polarizer (32), and a second retardation film layer (33), which are sequentially stacked. The light emitted by the LED pixel unit (1) sequentially passes through the first retardation film layer (31), the linear polarizer (32), and the second retardation film layer (33). The first retardation film layer (31) and the second retardation film layer (33) are quarter-wave plates.

An LED display screen lock includes a handle, a lock seat and a lock core. The lock seat includes a base, a through hole and a pin slidably disposed on the base. The lock core is rotatably disposed on the handle and received in the through hole. A locking hole is formed on the lock core and the pin is inserted in the locking hole. An unlocking portion is disposed on a circumference of the handle. The unlocking portion is abutted against the pin, in order to drive the pin to exit the locking hole.

According to the present inventive concept, a display device includes a display panel in which a plurality of display modules are horizontally aligned in an M*N matrix, wherein each of the plurality of display modules includes: a mounting surface on which a plurality of inorganic light-emitting elements are mounted; a substrate including a back surface disposed opposite to the mounting surface; and a module heat-dissipation member in contact with the back surface of the substrate to dissipate heat generated in the substrate, wherein the display panel includes a panel heat-dissipation member which connects the respective module heat-dissipation members so as to dissipate heat between the respective module heat-dissipation members of the plurality of display modules.

According to the present inventive concept, a display device includes a display panel in which a plurality of display modules are horizontally aligned in an M*N matrix, wherein each of the plurality of display modules includes: a mounting surface on which a plurality of inorganic light-emitting elements are mounted; a substrate including a back surface disposed opposite to the mounting surface; and a module heat-dissipation member in contact with the back surface of the substrate to dissipate heat generated in the substrate, wherein the display panel includes a panel heat-dissipation member which connects the respective module heat-dissipation members so as to dissipate heat between the respective module heat-dissipation members of the plurality of display modules.

A display device according to an embodiment of the present invention includes a display panel; a plurality of mounting units disposed on a rear surface of the display panel; and a back cover disposed on the rear surface of the display panel and the plurality of mounting units; wherein each of the plurality of mounting units includes a panel magnet fixed to the rear surface of the display panel; and a plurality of step control units disposed on both sides of the panel magnet and configured to be movable in a direction perpendicular to one surface of the back cover. Accordingly, a step height between the display devices in a Z-axis direction can be adjusted by moving the plurality of step control units in the direction perpendicular to one surface of the back cover.

The present disclosure relates to a rotary-type display apparatus using, for example, a light emitting diode (LED) which is a semiconductor light-emitting device, wherein the apparatus can be applied to technical fields related to display apparatuses. According to the present invention, a rotatory-type display apparatus using a light-emitting device comprises: a fixing part including a motor; a rotating part located on the fixing part and rotated by the motor; and a light source module which includes at least two rod-shaped panels coupled to the rotating part and arranged radially, and light-emitting device arrays respectively disposed on the panels in the longitudinal direction, wherein the height of the at least two panels from the rotating part may be different.

A display device includes a pixel circuit layer including a plurality of transistors, a first electrode and a second electrode disposed on a same layer on the pixel circuit layer, a light emitting element disposed between the first electrode and the second electrode, and an antenna pattern disposed on the light emitting element.

A display device includes a pixel circuit layer including a plurality of transistors, a first electrode and a second electrode disposed on a same layer on the pixel circuit layer, a light emitting element disposed between the first electrode and the second electrode, and an antenna pattern disposed on the light emitting element.