Samsung Display Co., Ltd.

Sang-Mi Kim

Kyoung-Won Lee

Ji-Myoung Seo

Su-Hyeong Park

Ho-Yong Jung

Hee-Soon Jeong

Joon-Chul Goh

Cheol-Woo Park

Dae-Young Lee

Bonghyun You

Seung-jun Lee

Dong-Won Park

Byung-Sun Kim

Gug Rae Jo

Ki-beom Lee

Dae-Gwang Jang

Jae-Wan Park

Jae Hyuk Chang

Seung-Min Lee

Hyun-Dae Lee

Hyun-Sik Hwang

Seok-Ha Hong

Yong-Doo Park

A display apparatus includes a mode determiner configured to compare image signals of a previous frame and a current frame and to determine an image mode of the current frame, a sync signal generator configured to generate a panel sync signal with a low frequency corresponding to the image mode using an original sync signal with a normal frequency, the low frequency being a non-divisor frequency of the normal frequency and lower than the normal frequency, a data driver configured to drive a data line of a display panel using a data sync signal based on the panel sync signal with the low frequency, and a gate driver configured to drive a gate line of the display panel using a gate sync signal based on the panel sync signal with the low frequency.

Display apparatus and method of driving the same

A display apparatus includes an image analyzer that analyzes image data and outputs an interrupt signal at a period during which the image data of a low frequency change to the image data of a high frequency, a frequency detector that detects the high frequency, a frame rate controller that outputs a vertical synch signal of the high frequency in response to the interrupt signal, a polarity compensation controller that determines a last frame of the low frequency based on an interrupt period at which the interrupt signal is generated, generates a reversed polarity signal with respect to a polarity signal of the last frame and outputs the reversed polarity signal during a polarity compensation period close to the interrupt period, and a data driver circuit that outputs a data signal based on the reversed polarity signal to a data line during the polarity compensation period.

Display apparatus and method of driving the display apparatus

A method of driving a display panel includes generating a first driving period having a first driving frequency, generating a second driving period having a second driving frequency, and inserting a compensating frame between the first driving period and the second driving period. A display apparatus includes a display panel configured to display an image, and a display panel driver configured to generate a first driving period having a first driving frequency, to generate a second driving period having a second driving frequency, and to insert a compensating frame between the first driving period and the second driving period.

Method of driving display panel and display apparatus for performing the same

A data driver including a power control part configured to control power according to mode signal determined based on an input image, a digital to analog converting part configured to convert a digital data signal into an analog data voltage, a buffering part configured to buffer the data voltage, a first switching part configured to apply the data voltage to a data line in a normal mode, when turned on, and a second switching part configured to apply a blank voltage to the data line in a blank period of a low frequency mode, when turned on.

Data driver, display apparatus having the same and method of driving display panel using the same

A method of driving a display panel and display device including the same are disclosed. In one aspect, the method comprises providing input image data, generating a gamma reference voltage, generating a data voltage based on the gamma reference voltage and input image data, providing the data voltage to the display panel, and determining whether the input image data represents a still image or a video image. The method further comprises substantially periodically and alternately generating first and second common voltages when the input image data represents the still image, and providing the first and second common voltages to the display panel.

Method of driving display panel and display device including the display panel

A vacuum roll-to-roll device includes: a first chamber; a second chamber neighboring the first chamber; a shutter disposed between the first chamber and the second chamber; a sealing member attached to the shutter; and a roll-type substrate which moves from the first chamber to the second chamber through the sealing member. A thickness of a lateral side of the roll-type substrate decreases in a direction toward an edge thereof.

Method for transferring substrate using vacuum roll-to-roll device

A display panel driving apparatus includes a first switching element and a second switching element. The first switching element applies first pixel data to a first pixel connected with a first data line of a display panel during a first sub frame period. The first switching element is connected with a data channel of a data driving part. The second switching element applies second pixel data having a level higher than a level of the first pixel data to a second pixel connected with a second data line of the display panel during a second sub frame period. The second switching element is connected with the data channel. Thus, display quality of a display apparatus may be enhanced.

Method of driving a display panel using switching elements between data channels and data lines and display panel driving apparatus for performing the method

Growing community of inventors

Yongin-si, South Korea

Sang-Mi Kim