Samsung Display Co., Ltd.

Changyun Moon

Hyunjoon Kim

Jinwook Lee

Wonju Shin

A display apparatus includes: a base substrate having a front surface, a rear surface opposite to the front surface, a module hole extending through the front surface and the rear surface, an active area, a peripheral area adjacent to the active area, and a margin area adjacent to the module hole; a circuit layer on the base substrate, the circuit layer including a driving element including a thin film transistor; a display element layer including: a deposition preventing pattern; and a light emitting element including: a first electrode connected to the thin film transistor; an emission pattern on the first electrode; and a second electrode disposed on the emission pattern. An encapsulation layer is on the display element layer, and encapsulating the light emitting element. The second electrode and the deposition preventing pattern are at a same layer and do not overlap with each other.

Display apparatus, method of manufacturing the same, and electronic device

A method of determining whether a display manufacturing facility is abnormal includes a first step of obtaining facility information data of facilities used to manufacture a display panel, a second step of preparing a display module by attaching a printed circuit board and a driving chip to the display panel, a third step of obtaining preliminary inspection data through an on-off test on the display module, a fourth step of associating the facility information data with the preliminary inspection data, establishing a database by repeatedly performing the first step to the fourth step, obtaining real-time inspection data through an on-off test on a display module to be inspected, determining whether the display module to be inspected is normal, and determining a facility causing abnormality of the display module, from the real-time inspection data by using the database, in case that the display module to be inspected is abnormal is determined.

Method of determining abnormality of display manufacturing facility

A display device comprises a display panel including a pixel providing a light and an input sensing panel sensing an external input. The input sensing panel includes a first sensing insulating layer disposed on the display panel, first conductive patterns disposed on the first sensing insulating layer, a second sensing insulating layer covering the first conductive patterns, second conductive patterns disposed on the second sensing insulating layer, a piezoelectric pattern covering the second conductive patterns, a light blocking pattern covering the piezoelectric pattern and defining a transmission opening transmitting the light, and a third sensing insulating layer covering the light blocking pattern.

Input sensing panel and display device having the same

An apparatus to determine a driving voltage includes: a color coordinate value comparator to measure a color coordinate value of an organic light-emitting display apparatus, to calculate a difference value between the measured color coordinate value and a fiducial color coordinate value, and to compare the calculated difference value with a first critical value; a voltage level changer to increase an absolute value of a driving voltage applied to each pixel of the organic light-emitting display apparatus when the difference value is greater than or equal to the first critical value; and a voltage level determiner to determine a level of the driving voltage at a point of time when the difference value is calculated as a final level of a driving voltage, when the difference value is less than the first critical value.

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Seoul, South Korea

Changyun Moon