Samsung Display Co., Ltd.

Jang-Mi Lee

Kihyun Pyun

Jun-Ho Hwang

Seung-Woon Shin

Hyoseok Yun

Nam-Gon Choi

Jongmin Shim

Yong-Hwan Kim

Taegon Kim

Hyun-Sik Yoon

Kang-min Kim

Wonjin Seo

Eunjin Choi

Jun Ho Hwang

Dong-sung Im

Jang-Hoon Kwak

Junghwan Yi

Seok-Kun Yoon

Namheon Kim

Myoungseop Song

Joohwan Park

Jae-kook Kim

Geonhwi Park

Jin-Mo Kwon

Hyeonuk Won

Jong-Hyun Sim

Geun-kyu Song

Yong-jin Shin

Doo-Sub Choi

An electronic device includes: a display panel including an active area including a first region and a second region, a plurality of first circuit films, a plurality of second circuit films, a first circuit board, a second circuit board, a first circuit cable, a second circuit cable, and a main circuit board. The main circuit board includes: a power generation unit, which provides power to the display panel, a first power measurement unit electrically connected to the first circuit cable and the power generation unit, and, which measures a first current provided to the first region, a second power measurement unit electrically connected to the second circuit cable and the power generation unit, and, which measures a second current provided to the second region, and an overcurrent protection unit, which cuts off the power based on the reference current and each of the first and second currents.

Electronic device and electronic device testing method

A display device includes a display panel displaying an image based on output image data, a voltage curve controller generating a converted peak luminance, a converted full white luminance, a converted peak grayscale, and a converted full white grayscale from a reference peak luminance and a reference full white luminance based on a gain mode and a gain value, and generating converted voltage curves including a first converted voltage curve from a first reference voltage curve based on the converted peak grayscale and the converted full white grayscale, and a driving voltage controller generating a driving voltage from the converted voltage curves based on a load and a maximum grayscale value of input image data. A voltage of the first converted voltage curve with respect to a peak grayscale is equal to a voltage of the first reference voltage curve with respect to the converted peak grayscale.

Display device, method of driving display device, and electronic apparatus including display device

A circuit board assembly includes a main board and a connection board attached to the main board. The connection board includes a base board including a connecting pad area and a mounting area, wherein the connection board is attached to the main board in the connecting pad area, and wherein the mounting area is spaced apart from the connecting pad area in a first direction and includes a driving chip mounted thereon. The connection board further includes first connection pads disposed on the connecting pad area of the base board, and second connection pads disposed on the connecting pad area of the base board. The main board includes first main pads connected to the first connection pads in a one-to-one connection and a second main pad connected to the second connection pads in a many-to-one connection.

Circuit board assembly and display device including the same

A display apparatus includes a display panel having a plurality of pixels, a gate driver configured to provide a gate signal to the display panel, a data driver configured to provide a data signal to the display panel, and a driving controller configured to control the gate driver and the data driver and to receive input image data to generate output image data corresponding to the data signal. The driving controller is configured to determine a scale factor based on a total load value of previous input image data and to compare the current input image data with the previous input image data to determine whether to apply the scale factor to the current input image data.

Display device and method of driving the same using scale factor based on load value

A controller to drive a display includes a voltage code generator and a voltage code compensator. The voltage code generator is configured to generate a first voltage code to drive pixels in the display based on input image data. The voltage code compensator is to generate a second voltage code to drive the pixels by compensating zero-grayscale codes of the first voltage code based on the zero-grayscale codes of the first voltage code, one-grayscale codes of the first voltage code, and the input image data.

Driving controller, display apparatus having the same and method of driving display panel using the same

A flexible circuit film including a first flexible film, a second flexible film facing the first flexible film, and a plurality of wirings arranged between the first flexible film and the second flexible film. The wirings have different widths and bend in different directions, and a guide film including a material more rigid than the first and second flexible films is arranged on ends of the first flexible film. The guide film includes a tear-preventing portion overlapping with a bending portion of a shortest one of the wirings while covering portions of an inner edge near inner corners of a U-shaped flexible circuit film.

Flexible circuit film and display apparatus having the same

A flexible circuit film including a first flexible film, a second flexible film facing the first flexible film, and a plurality of wirings arranged between the first flexible film and the second flexible film. Each of the wirings has a first portion extending in a second direction from a first terminal portion to a first connection part, a second portion extending in a first direction different from the second direction from the first connection part to a second connection part, and a third portion extending in a direction opposite to the second direction from the second connection part to a second terminal portion.

Flexible circuit film including flexible films facing each other with wirings arranged there between

A display device includes: a data driver for driving a plurality of data lines; a voltage generator for generating at least one driving voltage to be provided to the data driver; and a driving controller for providing a second image signal and a reference gamma selection signal to the data driver in response to a first image signal and a control signal received from the outside, wherein the driving controller outputs a voltage control signal for changing a voltage level of the at least one driving voltage, and the reference gamma selection signal, based on metadata included in the first image signal, and the data driver receives the reference gamma selection signal and the at least one driving voltage to provide, to the plurality of data lines, data voltage signals corresponding to the second image signal.

Display device capable of gray scale expansion

A display apparatus includes a display panel, a gate driver, a data driver and a timing controller. The display panel displays an image. The gate driver outputs a gate signal to the display panel. The data driver includes a plurality of data driving chips which outputs data voltages to the display panel based on data signals. The timing controller adjusts a waveform of the data signals based on a temperature of the data driving chips.

Display apparatus and method of driving display panel using the same

Flexible circuit film having wires of different widths and display apparatus having the same

A flexible circuit film includes a first flexible film, a second flexible film facing the first flexible film, a plurality of wirings arranged between the first flexible film and the second flexible film and extending in a first direction, then bending to extend in a second direction crossing the first direction, and then bending a second time to extend in an opposing direction to the first direction, and a guide film including a material more rigid than the first and second flexible films and arranged on an ends of the first flexible film. The guide film includes a tear-preventing portion overlapping with a bending portion of a shortest one of the wirings while covering portions of an inner edge near inner corners of a U-shaped flexible circuit film.

A control board in a display device includes terminals and a control circuit. The control circuit is configured to output a control signal an image signal through the terminals and to generate a drive voltage in response to a feedback signal, which is fed back to a second terminal of the terminals when a source voltage is applied to a first terminal of the terminals.

Control board and display device using the same

A display device includes gate lines, data lines, pixels, a gate driver, a data driver, and a timing controller. The gate lines extend in a first direction. The data lines extend in a second direction crossing the first direction. Each of the pixels is connected to a corresponding gate line of the gate lines and a corresponding data line of the data lines. The gate driver is configured to drive the gate lines. The data driver is configured to drive each data line of the data lines in response to a corresponding data signal. The timing controller is configured to, in response to an image signal and a control signal, apply the corresponding data signals to the data driver and control the gate driver. Each corresponding data signal reflects a kickback compensation value corresponding to a distance between the gate driver and the corresponding data line in the first direction.

Display device and method of driving the same utilizing kickback compensation values

A display device includes a display panel, a timing controller, a data driver, a gate driver and a backlight unit. The gate driver sequentially outputs gate signals to gate lines. The backlight unit performs an on-operation during a high section of a backlight control signal and an off-operation during a low section of the backlight control signal. The gate signals includes first gate signals that are output during the high section of the backlight control signal and have a first pulse width and second gate signals that are output during the low section of the backlight control signal and have a second pulse width greater than the first pulse width.

Display apparatus and a method of driving the same

A backlight assembly includes a light guide plate, a light source module spaced apart by a gap from the guide plate, a receiving container and a gap adjusting element. The gap adjusting element is inter-coupled between the receiving container and the light source module and is actuatable to adjust the gap distance between the light source module and the light guide plate. Accordingly, a display quality may be prevented from being decreased, and the productivity may be enhanced.

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Busan, South Korea

Jang-Mi Lee