Abstract: A compound having the formula (LA)mIr(LB)3-m, where LA is and LB is is disclosed. In the formula (LA)mIr(LB)3-m, LA and LB are different; each of X1 to X5 is C—RF or nitrogen; X is selected from O, S, and Se; each R1, R2, RB, RD, and RF is hydrogen or a substituent; R3 is alkyl, cycloalkyl, or a combination thereof; and m is 1 or 2. OLEDs, consumer products, and formulations including the compound are also disclosed.

Abstract: A compound having the formula (LA)mIr(LB)3-m, where LA is and LB is selected from is disclosed. In the formula (LA)mIr(LB)3-m, LA and LB are different; each of X1 to X5 is C—RF or nitrogen; X is selected from O, S, and Se; each R1, R2, RB, RD, RE, and RF is hydrogen or a substituent; R3 is alkyl, cycloalkyl, or a combination thereof; and m is 1 or 2. OLEDs, consumer products, and formulations including the compound are also disclosed.

Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have a steep sidewall, a sidewall with an undercut, or a sidewall surface with a plurality of curves to disrupt continuity of the OLED layers. A control gate that is coupled to a bias voltage and covered by gate dielectric may be used to form an organic thin-film transistor that shuts the leakage current channel between adjacent anodes on the display.

Abstract: A display may have an array of organic light-emitting diode (OLED) pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and cross-talk, the thickness of at least one of the OLED layers may be reduced. To maintain the optical cavity of the pixels, transparent optical spacer structures may be inserted. Alternatively, the thickness of the anodes can be increased. To accommodate a common prime layer within the OLED layers, the optical spacers or anodes may be separately patterned to have different thicknesses. Grating structures and photonic crystal structures may be embedded as part of the optical spacers to help control emission at selected viewing angles.

Abstract: Display structures for controlling viewing angle color shift are described. In various embodiments, polarization sensitive diffusers, independent controlled cathode thicknesses, filtermasks, touch detection layers, and color filters are described.

Abstract: Display structures for controlling viewing angle color shift are described. In various embodiments, polarization sensitive diffusers, independent controlled cathode thicknesses, filtermasks, and color filters are described.

Abstract: The present invention relates to novel organic compounds containing oligocarbazoles. The compounds are useful for organic light-emitting diodes. The compounds are also useful for charge-transport and charge-blocking layers, and as hosts in the light-emissive layer for organic light emitting devices (OLEDs).

Abstract: A display may have an array of pixels formed from organic light-emitting diodes and thin-film transistor circuitry. Each pixel may include organic layers interposed between an anode and a cathode. The organic layers may emit out-coupled light that escapes the display and waveguided light that is waveguided within the organic layers. A reflector may be placed at the edge of the organic layers to reflect the waveguided light out of the display. The reflector may be located within a pixel definition layer and may be formed from metal or may be formed from one or more interfaces between high-refractive-index material and low-refractive-index material. The reflector may be formed from an extended portion of the pixel anode. The reflector may be formed from light-reflecting particles that are suspended in the pixel definition layer.

Abstract: Display structures for controlling viewing angle color shift are described. In various embodiments, polarization sensitive diffusers, independent controlled cathode thicknesses, filtermasks, touch detection layers, and color filters are described.

Abstract: Display structures for controlling viewing angle color shift are described. In various embodiments, polarization sensitive diffusers, independent controlled cathode thicknesses, filtermasks, and color filters are described.

Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have a steep sidewall, a sidewall with an undercut, or a sidewall surface with a plurality of curves to disrupt continuity of the OLED layers. A control gate that is coupled to a bias voltage and covered by gate dielectric may be used to form an organic thin-film transistor that shuts the leakage current channel between adjacent anodes on the display.

Abstract: An organic light-emitting diode may have transparent electrodes. An organic emissive layer may be interposed between the electrodes. The emissive layer may emit light in response to current injected from the electrodes. The organic light-emitting diode electrodes may cover an electrode area. The electrode area may be square or may have other shapes. To enhance brightness uniformity, portions of the electrodes in a peripheral region (H1, H2) of the electrode area may have higher sheet resistances than a central portion of the electrode area. The electrode area may be square and may have four corners. The higher sheet resistances may be associated with regions of the electrode area adjacent to the corners. Elevated sheet resistances may be produced by forming the electrodes with different thicknesses in different areas or by providing supplemental conductive structures (104) in selected areas of the electrode area.

Abstract: A display may have an array of organic light-emitting diode (OLED) pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and cross-talk, the thickness of at least one of the OLED layers may be reduced. To maintain the optical cavity of the pixels, transparent optical spacer structures may be inserted. Alternatively, the thickness of the anodes can be increased. To accommodate a common prime layer within the OLED layers, the optical spacers or anodes may be separately patterned to have different thicknesses. Grating structures and photonic crystal structures may be embedded as part of the optical spacers to help control emission at selected viewing angles.

Abstract: The present invention relates to novel iridium complexes that can be used in organic light emitting devices (OLEDs). The present invention relates to the iridium complexes, devices comprising the iridium complexes, and formulations comprising the iridium complexes.

Abstract: The present disclosure relates to novel iridium complexes that can be used in organic light emitting devices (OLEDs). The present disclosure also relates to devices and formulations that incorporate the iridium complexes.

Abstract: A display may have an array of pixels formed from organic light-emitting diodes and thin-film transistor circuitry. Each pixel may include organic layers interposed between an anode and a cathode. The organic layers may emit out-coupled light that escapes the display and waveguided light that is waveguided within the organic layers. A reflector may be placed at the edge of the organic layers to reflect the waveguided light out of the display. The reflector may be located within a pixel definition layer and may be formed from metal or may be formed from one or more interfaces between high-refractive-index material and low-refractive-index material, The reflector may be formed from an extended portion of the pixel anode. The reflector may be formed from light-reflecting particles that are suspended in the pixel definition layer.

Abstract: An organic light-emitting diode may have transparent electrodes. An organic emissive layer may be interposed between the electrodes. The emissive layer may emit light in response to current injected from the electrodes. The organic light-emitting diode electrodes may cover an electrode area. The electrode area may be square or may have other shapes. To enhance brightness uniformity, portions of the electrodes in a peripheral region (H1, H2) of the electrode area may have higher sheet resistances than a central portion of the electrode area. The electrode area may be square and may have four corners. The higher sheet resistances may be associated with regions of the electrode area adjacent to the corners. Elevated sheet resistances may be produced by forming the electrodes with different thicknesses in different areas or by providing supplemental conductive structures (104) in selected areas of the electrode area.

Abstract: Novel oligocarbazole compounds containing a triphenylene and an oligocarbazole are provided. The compounds are useful in devices including organic light emitting devices (OLEDs).

Abstract: The present invention relates to novel organic compounds containing a triphenylene and a carbazole. The compounds are useful for organic light-emitting diodes. The compounds are also useful for charge-transport and charge-blocking layers, and as hosts in the light-emissive layer for organic light emitting devices (OLEDs).

Abstract: A display may have an array of pixels formed from organic light-emitting diodes of different colors. Each organic light-emitting diode may have an anode, a cathode, and an emissive layer between the anode and cathode. To prevent undesired color shifts with off-axis viewing angles, evaporated color filters may be formed on the cathode in alignment with the light-emitting diodes. The color filters may include red color filters that overlap the red diodes but not the green and blue diodes, may include red, blue, and green filters that overlap respective red, green, and blue diodes, or may include an orange filter that overlaps red and green diodes and a blue filter that overlaps blue diodes. The color filters may serve as a capping layer for the diodes or a capping layer that is separate from the color filters can be incorporated into the display.