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US 2017/0249883 A1Published application
Display device
AssigneeMitsubishi Electric Corporation
InventorManabu TANAHARA
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Abstract
In a display period, a display device applies a voltage of a level for turning a state of an inspection switching element to an OFF state to a gate electrode of the inspection switching element. Moreover, in a vertical blanking period while a state of a switching element is the OFF state, the display device performs voltage application processing for applying a voltage, which indicates an ON level, or a voltage, which indicates a level between the ON level and an OFF level, to the gate electrode of the switching element.
Claims3
A display device that displays a video, comprising:
- a first switching element for use in displaying said video;
- and
- a second switching element for inspecting a state of said first switching element,
- wherein said display device displays said video by driving said first switching element,
- a switching element that is each of said first switching element and said second switching element has a first electrode, a second electrode and a third electrode,
- a state of said switching element includes:
- an ON state where said first electrode and said second electrode of the switching element are electrically connected to each other;
- and an OFF state where the first electrode and second electrode of the switching element are not electrically connected to each other,
- said third electrode is an electrode to be selectively applied with a first voltage that is a voltage for turning the state of said switching element to said ON state and a second voltage that is a voltage for turning the state of the switching element to said OFF state,
- said second electrode of said second switching element is connected to said first switching element,
- in a display period that is a period while said display device is displaying said video, the display device applies an OFF second voltage, which is said second voltage for turning a state of said second switching element that is the switching element to said OFF state, to said third electrode of the second switching element, and
- in a period while a state of said first switching element is said OFF state, said display device performs voltage application processing for applying said first voltage or a third voltage, which indicates a value between a value of said OFF second voltage and a value of the first voltage, to said third electrode of said second switching element.
9 more elements
Dependencies are inferred from the claim text.