公开(公告)号：US10964253B2

公开(公告)日：2021-03-30

申请号：US16546205

申请日：2019-08-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jaekeun Lim ,  Jeongkyoo Kim

IPC: G09G3/32

Abstract: Each of pixels of a display device includes: a light-emitting portion including first light-emitting devices that are connected in a forward direction between a first electrode and a second electrode and second light-emitting devices that are connected in a reverse direction between the first electrode and the second electrode; a pixel circuit configured to receive a data voltage in synchronization with a scan signal, generate a driving current based on the data voltage, and output the driving current to a first node; and a light-emitting circuit configured to be controlled by a control signal, provide the driving current to the first light-emitting devices during a first emission period, and provide the driving current to the second light-emitting devices during a second emission period.

公开(公告)号：US09413371B1

公开(公告)日：2016-08-09

申请号：US14791720

申请日：2015-07-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jeongkyoo Kim ,  Kyungyoul Min

IPC: H03M1/00 ,  H03M1/12 ,  H03M1/44

CPC classification number: H03M1/44 ,  H03M1/462 ,  H03M1/468

Abstract: An analog-to-digital converter includes a successive approximation converter, a voltage comparator, and a controller. The successive approximation converter receives an analog input voltage and a first reference voltage, determines the level of a voltage of a first node as a negative level of the analog input voltage, and using a successive approximation method determines an output logic value corresponding to one bit of the N-bit output digital code at every one successive approximation cycle while adjusting the level of the voltage of the first node based on a level of the first reference voltage. The voltage comparator compares the level of the voltage of the first node with a level of a second reference voltage to generate a comparison logic value. When the output logic value or the comparison logic value satisfies a condition, the controller terminates conversion and determines the N-bit output digital code.

Abstract translation: 模数转换器包括逐次逼近转换器，电压比较器和控制器。 逐次逼近转换器接收模拟输入电压和第一参考电压，将第一节点的电压电平确定为模拟输入电压的负电平，并且使用逐次逼近方法确定对应于一位的输出逻辑值 的每一个逐次逼近循环的N位输出数字代码，同时基于第一参考电压的电平来调整第一节点的电压电平。 电压比较器将第一节点的电压电平与第二参考电压的电平进行比较，以生成比较逻辑值。 当输出逻辑值或比较逻辑值满足条件时，控制器终止转换并确定N位输出数字代码。