Lg Display Co., Ltd.

Lg Electronics Inc.

Pusan National University

Kwonhyung Lee

Chanwoo Lee

Jaekyung Choi

SungJoon Min

Jonghyun Park

Chulmin Park

Jinho Kim

SeYeoul Kwon

Sangcheon Youn

TaeWoo Kim

Seontae Yoon

Juntae Kim

Hakrae Lee

Kyongdo Lee

Yeonjun Oh

Donggi Eom

Sukchan Kim

Sunyoung Park

Sangwoo Lee

Sungjoon Min

Hanbae Jeon

Chisun Ahn

Kyungdo Lee

An air conditioner is provided that includes a plurality of indoor units configured to be distributed and installed in a plurality of floors in a building; a controller configured to monitor and control the plurality of indoor units; and a wireless communication unit configured to transmit and receive data by the controller, the plurality of indoor units, and one outdoor unit using a wireless communication method. The wireless communication unit comprises a transmitter and a receiver using a Sub-GHz band frequency. The transmitter includes an optical orthogonal code generator configured to first cipher source data using an optical orthogonal code, and a narrow-band chaotic signal generator configured to secondarily cipher using a chaotic signal. The source data is sequentially encrypted through the optical orthogonal code generator and the narrowband chaotic signal generator and then transmitted.

Air conditioner

Disclosed is an air conditioner including a plurality of units having an outdoor unit and an indoor unit. The plurality of units includes a controller configured to control an input/output and control to operate according to setting and a communication unit configured to transmit and receive data in a wireless communication method between the plurality of units. The communication unit includes a plurality of antenna connection units respectively connected to the plurality of antennas, and a transmission/reception unit configured to apply a signal of a certain frequency band to the plurality of antennas through the plurality of antenna connection units, and to process a signal received from the plurality of antennas. The communication unit includes a plurality of antennas, and is configured to transmit and receive data through multiple input and output, so that the plurality of units can directly communicate wirelessly, specify a frequency of a signal used in consideration of obstacles in a building and installation distances, and perform multiple input and output by using the plurality of antennas, thereby achieving stable communication by securing communication coverage, and improving efficiency and stability according to the management and operation of the air conditioner.

A display device and a method of manufacturing the same are provided. A display device includes: a plastic substrate including: a display portion including organic light emitting diodes, and a pad portion including chip-on-films, a lower protective member attached to an entire lower surface of the plastic substrate, and an upper protective member attached to an upper surface of the plastic substrate, the upper protective member covering at least the display portion and both edges of the pad portion.

Display device and method of manufacturing the same

Disclosed is an air conditioner system comprising at least one outdoor unit and a plurality of indoor units. The plurality of units may be grouped into one or more groups. A wireless communication module may be provided at each of the plurality of units and configured to perform wireless communication using a Sub-GHz frequency band. The wireless communication module may include an encoder configured to encode a predetermined signal, a modulator configured to modulate the encoded signal according to Orthogonal Frequency Division Multiplexing (OFDM) using multiple subcarriers, at least one antenna having an antenna pattern formed on a Printed Circuit Board (PCB), and configured to output a signal based on the modulated signal, a demodulator configured to demodulate a signal received at the at least one antenna, according to the OFDM, and a decoder configured to decode the demodulated signal. Accordingly, a high-quality wireless communication environment may be implemented.

Air conditioner system

Disclosed is an air conditioner and a control method thereof, the air conditioner where a plurality of units is connected wirelessly to receive and transmit data with each other, and the control method in which an address is set in a wireless communication method using an initially set basic channel, a group is set in response to a response signal, and communication is performed with an indoor unit belonging into the same group through a new channel. Accordingly, the plurality of units in the air conditioner is able to receive and transmit data with each other wirelessly, and a group is set with respect to multiple units so that the multiple units are able to communicate with each other directly. Additionally, because a group is able to be easily set with respected to units connected via a pipe by setting a channel, it is possible to reduce a time for setting wireless communication and make the communication setting accurate. The present disclosure allows units to communicate using a different channel according to which group each unit belongs to, thereby preventing intervention between groups and malfunction of units.

Air conditioner and control method thereof

A method for controlling an air conditioner system may include receiving, by one of an outdoor unit and a plurality of indoor units in a group, a command; transmitting, by the outdoor unit, a channel scan command to the plurality of indoor units; performing a channel scan by each of the outdoor unit and the plurality of indoor units; transmitting, by the plurality of indoor units, channel scan results to the outdoor unit; determining, by the outdoor unit, a channel to be used among a plurality of pre-set channels of a particular group based on a result of the channel scan performed by the outdoor unit and the channel scan results received from the plurality of indoor units; and outputting, by the outdoor unit, information on the channel to the plurality of indoor units. According to this method, an optimal wireless communication channel may be set.

Method for controlling air conditioner system

A method for controlling an air conditioner system may include a preset reception rate degradation error occurs in one or more indoor unit, transmitting a channel switch request signal to an outdoor unit belonging to a particular group; performing a channel scan by each of the outdoor unit and the plurality of indoor units; transmitting, by the plurality of indoor units, channel scan results to the outdoor unit; determining, by the outdoor unit, a channel to be used by the particular group based on a result of a channel scan performed by the outdoor unit and the channel scan results received from the plurality of indoor units; and outputting, by the outdoor unit, information on the channel to the plurality of indoor units. Accordingly, the communication channel may be changed to an optimal communication channel according to a change a communication environment.

A flexible display device and a method of manufacturing the same are provided. The flexible display device comprises a first flexible substrate including a display area including an organic light emitting layer, and a peripheral circuit area, and a second flexible substrate coming in contact with the first flexible substrate and including a pattern for facilitating bending thereof, wherein the second flexible substrate has a certain shape according to the pattern, and the first flexible substrate has a shape corresponding to the certain shape. Various embodiments of the present invention provide a flexible display device capable of realizing a narrow bezel-type or bezel-free display device and simultaneously realizing improved types of design, facilitating bending of a bezel area so as to realize a narrow bezel-type or bezel-free display device, and minimizing damage to an area to be bent.

Flexible display device having flexible display substrate curved around support substrate

An air conditioner is provided that may include a plurality of units including an outdoor unit and an indoor unit, the plurality of units being distributed at a plurality of layers or levels or stories in a building; and a controller configured to monitor and control the plurality of units. The controller and the plurality of units may include a communication unit configured to transmit/receive data in a wireless communication unit, respectively, and the communication unit may transmit/receive the data using a sub-giga band frequency. The plurality of units may transmit/receive data in a wireless communication scheme so that an indoor unit and an indoor unit, and an indoor unit and an outdoor unit may directly communicate with each other in a wireless scheme, and the indoor unit may directly communicate with the controller.

Disclosed is a flexible organic light emitting display panel in which an upper substrate is larger in size than a lower substrate including a pad area. The flexible organic light emitting display panel includes, for example, a lower substrate, including a flexible lower base film and an organic light emitting diode (OLED) included in the flexible lower base film, and an upper substrate including a flexible upper base film and a multi-buffer which is coated on the flexible upper base film for preventing penetration of water.

Flexible organic light emitting display panel

A communication device for pipes of an air conditioner disclosed herein transmits and receives communication signals using induced electromagnetic force, generated by a signal line wound around a core assembly, thereby facilitating for coupling between the core assembly and the signal line. Also, one type of core assembly can be commonly applied to various standards of pipes. Rainwater or foreign materials cannot permeate between the signal line and the core assembly by winding the signal line on the core assembly, despite of external installation, thus preventing breakdown or degraded communication performance of the communication device. Also, with forming a signal line mounting hole through the core assembly, the signal line is fixedly inserted through the signal line mounting hole, thereby preventing in advance a movement of the core assembly even though a refrigerant pipe vibrates.

Signal transmission device for air conditioner

A flexible display device includes a flexible substrate includes first and second portions that overlap each other, and a bending portion connecting the first portion with the second portion. A first display having a first organic light emitting diode is on the first portion, the first display configured to display an image in a first direction, and a second display having a second organic light emitting diode is on the second portion, the second display configured to display an image in a second direction. A gate driver is on the bending portion, and is configured to drive gate lines in each of the first and second displays.

Flexible display device and method for fabricating the same

A flexible display device comprises a substrate having a flat portion and a curved portion, wherein a pixel array is provided in the flat portion and a pad portion connected to the pixel array is provided in the curved portion; and an encapsulation layer provided on the substrate to cover the pixel array, wherein the encapsulation layer comprises a terminal portion; an Integrated Circuit (IC) portion having at least one driving IC; and a lead portion having leads which connect the terminal portion and the driving IC portion, and wherein the curved portion of the substrate is bent so that the pad portion and the terminal portion are in contact with each other.

Growing community of inventors

Seoul, South Korea

Kwonhyung Lee