Lg Innotek Co., Ltd.

Goldstar Electron Co., Ltd.

Tae Hoon Han

Dong Mug Seong

Joo Hyun Hwang

Hae Sik Kim

Jae Seok Park

Byung Youl Moon

Hyo Won Son

Sang Yu Lee

Sang Beum Lee

Jong Min Yun

Su Hyeon Cho

Nam Ho Kim

Geon Ho Roh

Jeong Ryong Lim

A metal plate to be used in the manufacture of a deposition mask comprises: a base metal plate; and a surface layer disposed on the base metal plate, wherein the surface layer includes elements different from those of the base metal plate, or has a composition ratio different from that of the base metal plate, and an etching rate of the base metal plate is greater than the etching rate of the surface layer. An embodiment includes a manufacturing method for a deposition mask having an etching factor greater than or equal to 2.5. The deposition mask of the embodiment includes a deposition pattern region and a non-deposition region, the deposition pattern region includes a plurality of through-holes, the deposition pattern region is divided into an effective region, a peripheral region, and a non-effective region, and through-holes can be formed in the effective region and the peripheral region.

Metal plate for deposition mask, and deposition mask and manufacturing method therefor

Provided is a display room mirror, including a room mirror disposed in an inner part of a vehicle to detect a rear situation of the vehicle; and an organic light emitting diode (OLED) panel formed in a part or an entire part of a front surface of the room mirror, thereby improving a contrast and a reaction velocity and reducing a thickness and a weight of the room mirror.

Display room mirror

A pulse generator comprises a transistor, a feed-back circuit and a second logic gate. The feed-back circuit includes a first logic gate coupled to at least one inverter, which is connected to a transmission gate. The first logic gate has a first terminal to receive a first input signal and a second terminal to receive an output of the transmission gate. The second logic gate receives an output of the feed-back circuit and a second input signal to generate an output signal. The feed-back circuit feeds back the first input signal through the first logic gate, at least one inverter and transmission gate to the second terminal of the logic gate for a prescribed period of time to change a pulse length of the first input signal. The second logic gate outputs the first input signal with a changed pulse length as the output signal when there is a transition of the second input signal from a first state to a second state, and the second logic gate outputs an inverted signal of the second input signal as the output signal during a predetermined state of the second input signal.

Pulse generator capable of variably controlling a pulse length

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Seoul, South Korea

Tae Hoon Han