公开(公告)号：US20150116382A1

公开(公告)日：2015-04-30

申请号：US14524535

申请日：2014-10-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Tae Gon IM ,  Song Yi HAN ,  Young Sup KWON ,  Eun Chul SHIN

IPC: H05B33/08 ,  G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3607 ,  G09G3/3406 ,  G09G2300/0809 ,  G09G2310/027 ,  G09G2320/0626 ,  H05B33/086

Abstract: A light unit includes a DC/DC converter. A plurality of unit light emitting diode columns receive a voltage applied from the DC/DC converter. A plurality of transistors, respectively, are connected to the plurality of unit light emitting diode columns. A current deviation compensating unit compensates for deviations between currents respectively flowing through the plurality of unit light emitting diode columns by a pulse current width modulation average current control method. A connection switch sequentially connects the current deviation compensating unit with the plurality of transistors. A resistor is connected to output terminals of the plurality of transistors. A switch controller controls connection between the connection switch and the current deviation compensating unit based on a signal applied to the resistor.

Abstract translation: 灯单元包括DC / DC转换器。 多个单位发光二极管列接收从DC / DC转换器施加的电压。 多个晶体管分别连接到多个单位发光二极管列。 电流偏差补偿单元通过脉冲电流宽度调制平均电流控制方法来补偿分别流过多个单位发光二极管列的电流之间的偏差。 连接开关顺序地将电流偏差补偿单元与多个晶体管连接。 电阻器连接到多个晶体管的输出端子。 开关控制器基于施加到电阻器的信号来控制连接开关和电流偏差补偿单元之间的连接。

公开(公告)号：US20190080647A1

公开(公告)日：2019-03-14

申请号：US15945866

申请日：2018-04-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Chan Wook SHIM ,  Wan Bae PARK ,  Eun Chul SHIN ,  Il Ho LEE ,  Cheol Gon CHOI ,  Tae Yong KIM ,  Hyung Chul KIM

IPC: G09G3/3225

CPC classification number: G09G3/3225 ,  G09G2320/043 ,  G09G2320/046 ,  G09G2330/12

Abstract: An aging system includes panel groups each including display panels, an auxiliary board including the panel groups disposed thereon, and an aging device for supplying aging signals to the display panels through line boards to perform aging on the display panels, where the aging device supplies switch signals respectively to the display panels through the line boards, where each of the display panels includes a switch unit for supplying the aging signal to a pixel unit according to the switch signal.

公开(公告)号：US20160195769A1

公开(公告)日：2016-07-07

申请号：US14698686

申请日：2015-04-28

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Wan KIM ,  Young Sup KWON ,  Jae Kyu PARK ,  Eun Chul SHIN

IPC: G02F1/1335 ,  F21V8/00

CPC classification number: G02F1/133608 ,  G02F1/133603

Abstract: A backlight unit may include a wall and a plurality of light sources. The wall may have a side in a cross-sectional view of the backlight unit. The side may have a curved shape in the cross-sectional view of the backlight unit. The plurality light sources may include a first light source and a second light source. The second light source may be positioned farther away from a center portion of the wall than the first light source in the cross-sectional view of the backlight unit. A minimum distance between the second light source and the side may be greater than a minimum distance between the first light source and the side in the cross-sectional view of the backlight unit.

Abstract translation: 背光单元可以包括壁和多个光源。 壁可以在背光单元的横截面视图中具有一侧。 侧面可以在背光单元的横截面视图中具有弯曲的形状。 多个光源可以包括第一光源和第二光源。 在背光单元的横截面视图中，第二光源可以比第一光源更远离壁的中心部分。 在背光单元的截面图中，第二光源与侧面之间的最小距离可以大于第一光源与侧面之间的最小距离。

公开(公告)号：US20160140912A1

公开(公告)日：2016-05-19

申请号：US14850773

申请日：2015-09-10

Applicant: Samsung Display Co., Ltd.

Inventor： Taegon IM ,  Min-Soo CHOI ,  Min-Gyu KIM ,  Youngsup KWON ,  Eun Chul SHIN ,  Dae-Sik LEE

IPC: G09G3/34 ,  G09G3/00

CPC classification number: G09G3/3406 ,  G09G3/003 ,  G09G3/3426 ,  G09G2310/0237 ,  G09G2310/0264 ,  G09G2310/08 ,  G09G2320/062 ,  G09G2320/064 ,  G09G2320/08 ,  G09G2360/16

Abstract: A backlight unit includes a light source part including a light-emitting diode array, a DC/DC converter, a driving current controller, and a reference voltage variable part. The backlight unit is operated in a first mode or a second mode. The driving current controller controls a driving current flowing through the light-emitting diode array to have a first current level during the first mode and controls the driving current flowing through the light-emitting diode array to have a second current level during the second mode. The reference voltage variable part applies a first reference voltage to the driving current controller during the first mode and applies a second reference voltage to the driving current controller during the second mode.

Abstract translation: 背光单元包括包括发光二极管阵列，DC / DC转换器，驱动电流控制器和参考电压可变部分的光源部分。 背光单元在第一模式或第二模式下操作。 驱动电流控制器控制流过发光二极管阵列的驱动电流，以在第一模式期间具有第一电流电平，并且在第二模式期间控制流过发光二极管阵列的驱动电流具有第二电流电平。 参考电压可变部分在第一模式期间将第一参考电压施加到驱动电流控制器，并且在第二模式期间将第二参考电压施加到驱动电流控制器。

公开(公告)号：US20150221249A1

公开(公告)日：2015-08-06

申请号：US14469619

申请日：2014-08-27

Applicant: Samsung Display Co., Ltd.

Inventor： Kyunho KIM ,  Youngsup KWON ,  Min-Gyu KIM ,  Eun Chul SHIN ,  Hwanwoong LEE ,  Min-Soo CHOI

IPC: G09G3/20 ,  G09G3/34

CPC classification number: G09G3/2092 ,  G09G3/3413 ,  G09G3/3648 ,  G09G2330/025 ,  G09G2330/04

Abstract: A backlight unit including, a controller configured to generate a control signal, a power converter configured generate a light-source voltage in response to the control signal, and at least one light emitting diode string connected between a first node and a second node and supplied with the light-source voltage from the first node, wherein the controller includes a current controller configured to adjust a current flow through the light emitting diode string, and an overvoltage controller connected between the light emitting diode string and the current controller, including a passive element, wherein the overvoltage controller is configured to connect the passive element between the second node and the current controller when a voltage of the second node of the light emitting diode is higher than a reference voltage.

Abstract translation: 一种背光单元，包括：被配置为产生控制信号的控制器，被配置为响应于控制信号产生光源电压的功率转换器，以及连接在第一节点和第二节点之间的至少一个发光二极管串， 具有来自第一节点的光源电压，其中控制器包括配置成调节通过发光二极管串的电流的电流控制器，以及连接在发光二极管串和电流控制器之间的过电压控制器，包括被动 元件，其中所述过电压控制器被配置为当所述发光二极管的第二节点的电压高于参考电压时，在所述第二节点和所述电流控制器之间连接所述无源元件。