Display device
AssigneeLG Electronics Inc.
InventorsHoyoung Kim, Kyeongdong Kim, Byunghee Kim
Life of this patent
Estimating the term…
Abstract
A display device includes: a housing; a roller rotatably disposed on the housing; a flexible display that is rolled around the roller or unrolled from the roller; a first arm connected to the flexible display; an arm supporter provided in the housing; an arm shaft rotatably supported to the arm supporter; a second arm coupled to the arm shaft and rotated together with the arm shaft to rotate the first arm; a rotation mechanism connected to the second arm to rotate the second arm about the arm shaft; and an angle sensor module connected to at least one of the arm shaft and the second arm.
Claims19
A display device comprising a flexible display, the device comprising:
- a housing;
- a roller disposed in the housing;
- a flexible display module configured to be rolled around the roller;
- a lift assembly comprising:
- a driving source;
- at least one arm coupled to the flexible display module, the at least one arm configured such that when the driving source is driven, the flexible display module is unwound from the roller or wound around the roller;
- a sensing module configured to detect an angle of the at least one arm based on a rotation of the at least one arm;
- a biasing member configured to apply a biasing force to the flexible display module in a first direction for extending the flexible display away from the housing;
- and
- a first magnetic member configured to magnetically engage the biasing member with the flexible display module.
A lift assembly for a flexible display module, the lift assembly comprising:
- a motor;
- at least one arm coupled to an upper portion of the flexible display module, the at least one arm configured such that when the motor is driven, the flexible display module is unwound from the roller or wound around the roller;
- a main gear configured to rotate in response to pivoting of the at least one arm;
- a driven gear engaged with the main gear;
- a first sensor configured to detect an angle of the at least one arm based on a rotation of the driven gear;
- a biasing member configured to apply a biasing force to the flexible display module in a first direction for extending the flexible display module;
- and
- a first magnetic member configured to magnetically engage the biasing member with the flexible display module.
A display device comprising a flexible display, the device comprising:
- a housing;
- a roller disposed in the housing;
- a flexible display module configured to be rolled around the roller;
- a lift assembly comprising:
- a driving source;
- at least one arm coupled to the flexible display module and configured to cause the flexible display module to be unwound from the roller or wound around the roller in response to operation of the driving source;
- at least one arm supporter configured to support the at least one arm;
- a sensing module configured to detect an angle of the at least one arm based on a rotation of the at least one arm;
- and
- a biasing member configured to apply a biasing force to the flexible display module or the at least one arm in a first direction away from the housing,
- wherein the biasing member comprises:
- a moving stopper;
- and
- a spring seated on the at least one arm supporter and configured to apply force to the moving stopper in the first direction,
- wherein the moving stopper is configured to contact the flexible display module or the at least one arm.
Dependencies are inferred from the claim text.