Samsung Electronics Co., Ltd.

Donghwy Kim

Jongkon Bae

Dongkyoon Han

Yunpyo Hong

Hyunjun Park

Hongkook Lee

Yohan Lee

Jaesung Lee

Minwoo Lee

Jihyun Ahn

Jong-Kon Bae

Byungduk Yang

Hanyuool Kim

Kyounghwan Kwon

Seongmin Cheon

Donghyun Yeom

Jungchul An

Kwangtai Kim

Minho Kim

Jiyong Kim

Taejin Park

Hyungsup Byeon

Hoondo Heo

Seoyoung Lee

Juseok Lee

Seonghoon Kim

Harksang Kim

Hyojong Kim

Taewoong Lee

Seungkyu Choi

Seungryeol Kim

Hojin Kim

Dongheon Shin

Euntaek Jang

Taemoon Roh

Heekeun Park

An electronic device is provided. The electronic device includes a processor. The electronic device includes a display including a display driver circuit and a display panel. The electronic device includes a first path connecting the display driver circuit to the processor. The electronic device includes a second path connecting the display driver circuit to the processor and separate from the first path. The processor is configured to transmit, based on a first cycle, via the second path to the display driver circuit, a pulse signal to synchronize, with a first time period in the processor used to display an image transmitted via the first path to the display driver circuit on the display panel, the first time period in the display driver circuit used to display the image on the display panel. The processor is configured to change, based on a second cycle different from the first cycle, a waveform of the pulse signal transmitted from the first cycle from a first waveform to a second waveform to synchronize, with a second time period in the processor used for the display of the image, the second time period in the display driver circuit used for the display of the image.

Electronic device controlling pulse signal from processor to display

An operation method and an electronic device supporting the same are provided. The operation method includes receiving, by a display driver integrated circuit (IC), display data from a processor and supplying, by the display driver IC, a second gamma signal set to display a luminance of a second magnitude greater than a first magnitude to a second display area having a second pixel arrangement density lower than a first pixel arrangement density, while supplying a first gamma signal set to display a luminance of the first magnitude to a first display area disposed at the first pixel arrangement density in a display panel.

Operation method for gamma voltage according to display area and electronic device supporting same

An electronic device is provided. The electronic device includes a processor. The electronic device includes a display including a display panel and a display driver circuit that includes memory. The display driver circuit is configured to identify an event for a display on the display panel. The display driver circuit is configured to, in response to the event of a first type that executes the display through the memory, change, at a timing before a reference time from a start timing of a scan for the display, a state of a signal provided from the display driver circuit to the processor from a first state indicating to enable an image transmission to the display driver circuit to a second state indicating to disable the image transmission. The display driver circuit is configured to, in response to the event of a second type that executes the display by bypassing the memory, change, at the start timing, the state of the signal provided from the display driver circuit to the processor from the first state to the second state.

Electronic device and method controlling signal provided to processor

A display driving integrated circuit performs an adaptive frame operation. An operation method of the display driving integrated circuit includes outputting current frame data to an external display panel, starting to receive next frame data from an external device after a first time point, the first time point being a time point when a first time period elapses, the first time period immediately following a second time point at which the current frame data are completely output, and generating a vertical synchronization signal at a third time point synchronized with a cycle of an emission control signal, in response to starting to receive the next frame data.

Display driving integrated circuit configured to perform adaptive frame operation and operation method thereof

An electronic device configured to configure brightness of a display by using an illuminance sensor is provided. The electronic device includes acquiring a second front-surface sensing value smaller than a first front-surface sensing value through a first illuminance sensor while the brightness is a first brightness, comparing the second front-surface sensing value with a first rear-surface sensing value detected through a second illuminance sensor, determining, when the second front-surface sensing value is greater than the first rear-surface sensing value, whether a touch input is detected through a designated region of the display, maintaining the brightness at the first brightness when the touch input is detected, and when the touch input is not detected, adjusting the brightness of the display to a value lower than that of the first brightness, based on a first LUT stored in a memory, or maintaining the brightness of the display at the first brightness.

Electronic device for configuring brightness of display by using illuminance sensor

An electronic device that quickly updates a screen when receiving an input from a peripheral device is provided. The electronic device includes a display driver integrated circuit (DDIC) configured to output a tearing effect (TE) signal having a designated frequency, and a processor configured to control the peripheral device, a display, and the DDIC and to transmit image data to the DDIC in response to the TE signal, wherein the DDIC is configured to output the TE signal at a first frequency, receive an interrupt signal from the peripheral device while the TE signal is output at the first frequency, output the TE signal at a second frequency in response to the interrupt signal, the second frequency being greater than the first frequency, receive image data updated by the processor based on the TE signal output at the second frequency, and drive the display to display the received image data.

Electronic device configured to quickly update screen upon receiving input from peripheral device

An electronic device is disclosed that includes a display, a display driver IC that drives the display, and at least one processor operationally connected with the display and the display driver IC. The display driver IC moves a display location of one or more pixel data corresponding to an image associated with at least one application from a specified point by a specified distance on an active area of the display. The at least one processor is configured to scale up a first portion of the image by a specified range based on the specified distance, scale down a second portion of the image by the specified range based on the specified distance, and display the image on the active area based on the scaled-up first portion or the scaled-down second portion. In addition, various embodiments recognized through the specification are possible.

Electronic device for controlling display position or area of image on basis of change of content of image

Disclosed is an electronic device including a display panel displaying an image, a source driver supplying a source voltage to the display panel, and a display driver integrated circuit (DDI) including a timing controller controlling the source driver. The timing controller may be configured to identify information associated with a luminance of the image and to set a source bias current for controlling a slew rate of the source voltage based on the luminance of the image. Besides, various embodiments as understood from the specification are also possible.

Electronic device for controlling voltage slew rate of source driver on basis of luminance

An electronic device according to various embodiments may comprise: a display panel having an active area of a first designated size; and a processor. The processor may be configured to: run a designated application comprising a first application display layer set to display fixed content, and a second application display layer set to display changing content; and, while the designated application is running, and on the basis of at least the fixed content, display the first application display layer in a second designated size smaller than the first designated size, and at least temporarily move, within the active area, the first application display layer displayed in the second designated size.

Method for displaying content of application via display, and electronic device

According to various embodiments of the disclosure, a display may include a display panel including a first region in which first group subpixels are disposed and a second region in which second group subpixels are disposed, a converter group including converters respectively connected to subpixels included in the first group subpixels and the second group subpixels to transfer image data for output of specified content to the subpixels, a first group gamma circuit selectively connected to the converters to output a first grayscale voltage whose intensity is determined based on a plurality of binary bits, a second group gamma circuit selectively connected to the subpixels to output a second grayscale voltage whose intensity is determined based on a single binary bit, and a controller that controls selective connections between the first group gamma circuit and the converters and selective connections between the second group gamma circuit and the subpixels. According to an embodiment, the controller may receive the image data from an external processor and transfer the image data to the converter group, connect the first group gamma circuit with at least some converters such that the first group gamma circuit applies the first grayscale voltage to the at least some converters of the converter group, connect the second group gamma circuit with the second group subpixels such that the second group gamma circuit applies the second grayscale voltage to the second group subpixels, and output the specified content to at least a portion of the first region. In addition, various embodiments understood from the specification are possible.

Display for controlling operation of gamma block on basis of indication of content, and electronic device comprising said display

An electronic device is provided. The electronic device includes a display panel, a metal layer disposed on a surface of the display panel, a display driver integrated circuit (DDI) disposed on a surface of the metal layer, a bending part connecting the display panel to the DDI, and a cover member connected to the metal layer while covering the DDI. The cover member includes at least one conductive layer. The metal layer and the cover member form a space in which the DDI is disposed, and the bending part is connected to the DDI via a connection part in the space.

Electronic device including structure for protecting display driver from static electricity

An electronic device is provided. The electronic device includes a display panel on which a plurality of pixels are arranged, first group lines providing a source voltage to each of the plurality of pixels, a display driver integrated circuit that includes a plurality of source amplifiers electrically connected with the first group lines and providing the source voltage to each of the plurality of pixels, at least one sensing line crossing the first group lines, and first group switches disposed on the at least one sensing line, and a sensing circuit electrically connected with one end of the at least one sensing line to check a crack in at least a partial region of the electronic device. The display driver integrated circuit receives a specified signal for the electronic device to enter a sense mode, applies a first voltage to the other end of the at least one sensing line that is distinguished from the one end of the at least one sensing line, in response to the received specified signal, turns on the first group switches such that the at least one sensing line is short-circuited from the other end of the at least one sensing line to the sensing circuit, obtains a second voltage sensed by the sensing circuit electrically connected with the one end of the at least one sensing line, and checks information regarding the crack in the at least partial region of the electronic device based on a difference between the first voltage and the second voltage. In addition to the above, various embodiments identified through the specification are possible.

Method for checking crack in display and electronic device for performing same

There is disclosed an electronic device including a display panel including one or more pixels, one or more gate drivers receiving electric power from a first power supply, and a display driver integrated circuit configured to drive the display panel. Any one of the one or more gate drivers is connected to a first pixel of the one or more pixels, the display driver integrated circuit includes one or more source drivers including a first source driver and at least one protection circuit connected to the first source driver, the first source driver includes one or more amplifier circuits receiving electric power from a second power supply different from the first power supply and connected to the first pixel, the at least one protection circuit is connected to a power input terminal of the one or more amplifier circuits, and at least a portion of the at least one protection circuit is branched between the second power supply and the power input terminal to be connected to a ground of the display driver integrated circuit. In addition to the above, various embodiments identified through the specification are possible.

Display driving circuit comprising protection circuit

An electronic device is provided. The electronic device includes a display panel, a display driver integrated circuit (DDI) that drives the display panel, a first connector that is connected to the DDI and that includes a first display pin and a second display pin, the first display pin and the second display pin being connected together, a substrate, a second connector that is connected to the substrate and coupled to the first connector and that includes a first board pin and a second board pin, one of the first board pin and the second board pin being connected to a resistor, and at least one processor mounted on the substrate and configured to determine at least one of a coupled state of the first connector and the second connector or a state of the DDI, based on a signal received from the first board pin or the second board pin.

Growing community of inventors

Suwon-si, South Korea

Donghwy Kim