Organic light-emitting diode (OLED) display capable of controlling light transmittance

摘要

An organic light-emitting diode (OLED) display capable of controlling light transmittance is disclosed. In one aspect, the OLED display includes a plurality of pixels, each including a first region configured to emit light and a second region configured to transmit light therethrough and a plurality of first electrodes respectively formed in the first regions of the pixels. The OLED display also includes a plurality of organic layers respectively formed over the first electrodes, a second electrode formed over all of the organic layers, and a plurality of third electrodes each formed in the second regions of the pixels. The OLED display further includes a plurality of solvents respectively placed over the third electrodes, wherein each of the solvents is configured to selectively block light and a fourth electrode formed over the solvents for all of the pixels.

主权项

1. An organic light-emitting diode (OLED) display, comprising:
at least one pixel including a first region that emits light and a second region configured to selectively transmit external light received from one side of the OLED display so as to be emitted from an opposing side of the OLED display; at least one thin film transistor (TFT) formed in the first region of the pixel; an insulating layer formed over the TFT; at least one first electrode formed in the first region of the pixel over the insulating layer; at least one organic layer formed over the first electrode; a second electrode formed over the organic layer; at least one third electrode corresponding to the pixel, wherein the third electrode is formed in the second region of the pixel; at least one solvent placed over the third electrode, wherein the solvent selectively blocks the external light from being transmitted through the OLED display based at least in part on an electric field; and a fourth electrode formed over the solvent, wherein a transmission opening is formed in the insulating layer in the second region of the pixel, wherein the solvent is placed in the transmission opening, wherein the at least one TFT comprises i) an active layer and ii) a gate electrode insulated from the active layer, and wherein the at least one third electrode is disposed on a same layer as the active layer.