US 10,475,384 B2Granted

Display device comprising a lighting part

AssigneeLG Display Co., Ltd.

InventorByungkoo Kang

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Abstract

A display device includes a display panel having a data display area in which pixels are arranged and a lighting part outside the data display area; a display panel driver driving an organic light-emitting diodes in the pixels; and a lighting driver driving an organic light-emitting diodes in the lighting part; and a power supply part generating the high-potential power supply voltage and the low-potential power supply voltage, wherein the lighting part includes: one or more second high-potential power supply lines connected between the power supply part and the organic light-emitting diodes in the lighting part; and a switch connected to the second high-potential power supply lines, and wherein the lighting driver turns on the switch to supply the high-potential power supply voltage to the organic light-emitting diodes in the lighting part when there is an user input or a system power is turned off.

Claims11

Dependent claims

A display device, comprising:

a display panel having a data display area in which pixels are arranged and a lighting part outside the data display area, the pixels comprising organic light-emitting diodes and receiving a high-potential power supply voltage and a low-potential power supply voltage, and the lighting part comprising one or more organic light-emitting diodes;
a display panel driver configured to drive the organic light-emitting diodes in the pixels;
a lighting driver configured to drive the organic light-emitting diodes in the lighting part;
and
a power supply part configured to generate the high-potential power supply voltage and the low-potential power supply voltage,
wherein the display panel comprises:
a plurality of first high-potential power supply lines connected between the power supply part and the pixels;
one or more second high-potential power supply lines connected between the power supply part and the organic light-emitting diodes in the lighting part;
and
a switch electrically connected to the power supply part and the second high-potential power supply line for switching a current path between the power supply part and the organic light-emitting diodes in the lighting part,
wherein the lighting driver is further configured to turn on the switch when there is a user input or when the system power is turned off to supply the high-potential power supply voltage to the organic light-emitting diodes in the lighting part, and
wherein each of the pixels and the lighting part selectively emits light.

9 more elements

A display device, comprising:

a display panel having a data display area in which pixels are arranged and a lighting part outside the data display area, the pixels comprising organic light-emitting diodes and receiving a high-potential power supply voltage and a low-potential power supply voltage, and the lighting part comprising one or more organic light-emitting diodes;
a display panel driver configured to drive the organic light-emitting diodes in the pixels;
a lighting driver configured to drive the organic light-emitting diodes in the lighting part;
and
a power supply part configured to generate the high-potential power supply voltage and the low-potential power supply voltage,
wherein the display panel comprises:
a plurality of first high-potential power supply lines connected between the power supply part and the pixels;
one or more second high-potential power supply lines connected between the power supply part and the organic light-emitting diodes in the lighting part;
and
a switch electrically connected to the power supply part and the second high-potential power supply line for switching a current path between the power supply part and the organic light-emitting diodes in the lighting part,
wherein the lighting driver is further configured to turn on the switch when there is a user input or when the system power is turned off to supply the high-potential power supply voltage to the organic light-emitting diodes in the lighting part,
wherein the power supply part comprises an output terminal configured to output the high-potential power supply voltage,
wherein one end of the first high-potential power supply lines is connected to the output terminal and the other end of the first high-potential power supply lines is connected to the switch, and
wherein one end of the second high-potential power supply lines is connected to the switch and the other end of the second high-potential power supply lines is connected to the anode in the lighting part.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/658,738Filed 25 Jul 2017
Priority: KR 10-2016-009749529 Jul 2016
Published: US 2018/0033375 A11 Feb 2018
Granted: 12 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

G09G 3/3258
Using an active matrix: with pixel circuitry controlling the voltage across the light-emitting element
G09G 3/14
Using electroluminescent elements: semiconductor devices, e.g. diodes
G09G 3/3233
Using an active matrix: with pixel circuitry controlling the current through the light-emitting element
G09G 2300/0408
Matrix technologies: integration of the drivers onto the display substrate