Samsung Display Co., Ltd.

Moonsung Choi

Seungho Nam

Won-ki Hong

Il Ho Lee

Kangwon Lee

Seongmo Hwang

Jihong Park

Incheol Kim

Yong Woon Lim

Donghoon Lee

Jihoon Seo

Eon Pil Shin

Myoungchul Kim

Hyunju Woo

Seokwoo Jeong

A method of determining crystallinity may include acquiring a Raman spectrum of each of samples that are crystallized, determining a first sample that exhibits a first Raman spectrum having a first Raman intensity that is largest among the Raman spectra, as an optimal sample, and determining a second sample that exhibits a second Raman spectrum having a second Raman intensity that is within a range from the first Raman intensity based on the first Raman intensity, as a first normal sample.

Method of determining crystallinity and method of manufacturing a display device using the same

A touch display device is provided which includes a display panel for displaying an image, and a touch screen panel disposed on the display panel and configured to sense at least one touch. The touch screen panel includes a touch substrate at which the touch can be generated; sensing electrodes provided on the touch substrate and spaced apart from one another, each of the sensing electrodes being formed of a piezoresistive material having a resistance value that varies according to an applied force; and a touch processor electrically connected to the sensing electrodes. The touch processor extracts a touch coordinate based on time constants of sensing signals applied to the sensing electrodes, and calculates a touch force of the touch based on resistance values of the sensing electrodes.

Touch display apparatus sensing touch force

A display apparatus includes a display panel that displays an image during a display period and detects a touch event during a non-display period. The display panel includes a plurality of common electrodes and a plurality of data lines capacitively coupled to the common electrodes during the non-display period. Coordinate information of a position at which the touch event occurs is calculated on the basis of a capacitance variation of the common electrodes and the data lines.

Display apparatus

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Incheon, South Korea

Moonsung Choi