Samsung Electronics Co., Ltd.

Snur & Db Foundation

Woohyuk Jang

Hyunwook Lim

Jinyong Park

Hongki Kwon

Hojun Chung

Unki Park

TaeWoo Kim

Hyeonsu Park

Yonghoon Yu

Minsik Kim

Byeongcheol Jang

Bumsoo Kim

Yoon-Kyung Choi

Jaeyoul Lee

Jaemoon Cha

Yeonjoo Lee

Junchul Park

Se Whan Na

Taekon Yu

Jaehun Kim

Byunghwee Park

Wongab Jung

Jonghee Na

Gwangho Nam

Jaehyun Park

Chilsung Choi

Taewoo Kim

Jiheon Ok

Seonyun Kim

Kiyoung Lim

Jonghyuk Lee

Taekdong Chung

Seongju Lee

Deunghyeon Jeong

Heyyoung Park

Jooyoung An

Kukjeong Kim

To compensate for degeneration of an electroluminescent display device, a method of compensating for the degeneration may include, grouping a plurality of pixels in a display panel into a plurality of pixel blocks arranged in present block rows and present block columns based on initial block boundaries, accumulating block stress values based on input image data, each accumulated block stress value representing a degeneration degree of the pixels included in each pixel block of the plurality of pixel blocks, performing a boundary updating operation on the plurality of pixel blocks, the performing the boundary updating operation including moving present block boundaries of the plurality of pixel blocks to updated block boundaries based on a distribution of the accumulated block stress values, and correcting the input image data based on the accumulated block stress values and the updated block boundaries.

Method of compensating for degeneration of electroluminescent display device and display system performing the same

A display driver circuit receives externally-encoded image data and processes the data using a memory (graphic RAM), an internal encoder, and an external decoder configured to operate on the externally-encoded image data. The processed data is provided to a display device by a source driver of the display driver circuit. Data is processed through the graphic RAM and an internal decoder or the external decoder depending on whether a slice of the data is a currently received update slice, a recently received standby slice, or a still slice.

Display driving circuit and operating method for performing encoding and decoding

According to various embodiments, an electronic device may include: at least one processor, wherein the at least one processor is configured to: receive at least one message causing a random access (RA) procedure for a second cell based on a second radio access technology (RAT) different from a first RAT while being connected to a first cell based on the first RAT, identify, based on the reception of the at least one message, a first accumulative specific absorption rate (SAR) having occurred based on transmission of at least one RF signal based on the first RAT and/or the second RAT for a first time interval, transmit an RA preamble message to the second cell based on determining, based on the first accumulative SAR, that performing the RA procedure for the second cell based on the second RAT is possible, and refrain from transmitting the RA preamble message based on determining, based on the first accumulative SAR, that performing the RA procedure for the second cell based on the second RAT is impossible.

Electronic device performing random access procedure and method for operating thereof

A touch sensor controller for driving a touch sensor that is stacked on a display panel and includes driving electrodes and receiving electrodes crossing the driving electrodes, the touch sensor controller including: a driving circuit configured to sequentially provide driving signals to the driving electrodes; a read-out circuit configured to, in response to the driving signals, generate touch data based on first sensing signals received from the receiving electrodes and generate display noise data based on a second sensing signal received from a first driving electrode to which a driving signal of the driving signals is not applied from among the driving electrodes; and a touch processor configured to determine whether a touch input has occurred on the touch sensor based on the touch data and the display noise data.

Touch sensor controller, operating method of touch sensor controller, and touch screen driving circuit

An electronic device includes a display panel that includes a first region including first pixel groups and a second region including second pixel groups, and a compensation circuit. The compensation circuit may receive first image data. The compensation circuit may compensate to generate second image data in response to a determination that the first image data corresponds to at least one of one or more particular first pixel groups that are adjacent to a boundary between the first region and the second region or one or more particular second pixel groups that are adjacent to the boundary. The compensation circuit outputs the second image data to the display panel.

Electronic devices and operating methods of electronic devices

Provided are a low-power display driving circuit performing internal encoding and decoding and an operating method thereof. The display driving circuit includes a memory configured to store an input bit stream encoded by an encoder and a controller configured to determine a data path through which output frame data in a second frame period passes according to whether internal encoding is successful in a first frame period, wherein, when the internal encoding is successful, the controller performs internal encoding in the second frame period, stores a generated internal bit stream in the memory, allows the internal bit stream to pass through a low-power path to generate the output frame data, and when the internal encoding fails, the controller generates the output frame data by allowing the input bit stream to pass through a normal path in the second frame period, changes an encoding setting of an internal encoder, and repeats the internal encoding.

Low-power display driving circuit performing internal encoding and decoding and operating method thereof

An electronic device according to various embodiments includes: at least one communication processor configured to support a plurality of network communications, a shared antenna configured to transmit at least one communication signal corresponding to the plurality of network communications, an antenna tuning circuit configured to adjust resonance characteristics of the shared antenna, and a memory configured to store a plurality of antenna configurations applied to the antenna tuning circuit, wherein the at least one communication processor is configured to: identify a plurality of target power values corresponding to the plurality of network communication, respectively, identify a first antenna configuration of the antenna tuning circuit to minimize the power consumption among the plurality of antenna configurations stored in the memory based on the at least one communication signal being transmitted through the shared antenna, based on the plurality of target power values, and apply the first antenna configuration to the antenna tuning circuit.

Electronic device for adjusting antenna configuration and method for operating same

A display driving circuit for driving a display panel, including a first memory configured to store main image data received from outside of the display driving circuit; a second memory configured to store first additional image data in a normal mode, and to store second additional image data in an Always On Display (AOD) mode having lower power consumption than the normal mode; a normal mode controller configured to operate in the normal mode according to the first additional image data stored in the second memory; and an AOD mode controller configured to operate in the AOD mode according to the main image data stored in the first memory and the second additional image data stored in the second memory.

Display driving circuit

A display driver circuit includes a receiver that receives a still image or a moving image, a frame buffer that stores the still image received by the receiver in a still image mode, an image processor that performs an image enhancement operation on the moving image transferred from the receiver or the still image transferred from the frame buffer, and a motion processor that performs a motion compensation operation using a current frame output from the image processor and a previous frame stored in the frame buffer in a moving image mode. The previous frame is data which, in the moving image mode, are processed by the image processor before the current frame and are then stored in the frame buffer. The previous frame is output from the frame buffer to the motion processor in synchronization with the current frame.

Display driver, circuit sharing frame buffer, mobile device, and operating method thereof

A method of luminance compensation includes; generating luminance compensation data based on test image data, each of the test image data corresponding to one gray level, and each of the luminance compensation data including compensation values corresponding to the one gray level, generating intra-plane data based on the luminance compensation data, one of the intra-plane data being generated based on one of the luminance compensation data, generating inter-plane stream data based on the intra-plane data, one of the inter-plane stream data being generated based on data blocks included in the intra-plane data and disposed at a same location within the intra-plane data, and sequentially storing the inter-plane stream data in a memory.

Method of luminance compensation, luminance compensation system and display system

A display driving circuit for driving a display panel includes a control logic that adjusts brightness of a first partial area by adjusting pixel data values included in partial image data to be displayed on the first partial area of the display panel based on received brightness control information, and a data driver that generates image signals by digital-analog conversion of pixel data values provided from the control logic, the data driver providing the image signals to the display panel.

Display driving circuit and display device including the same

Display driving circuit, display device including the same, and method of operating the display driving circuit

Growing community of inventors

Hwaseong-si, South Korea

Woohyuk Jang