Jsr Corporation

Mattrix Technologies, Inc.

Hiromitsu Katsui

Bo Liu

Maxime Lemaitre

A device configuration designed to mitigate display defects resulting from voltage drops in current supply lines offers a display with better display quality. The display includes: a plurality of VOLETs arranged in arrays along a first direction and a second direction; a data line supplying a voltage for controlling gate electrodes of the plurality of VOLETs; TFTs each connected between a gate electrode of each of the VOLET and the data line and controlling voltage supply to the gate electrodes of the VOLETs; a gate line connected to gate electrodes of the TFTs and transmitting a signal that controls the TFTs; a plurality of current supply lines extending along the first direction and supplying a current to each of a group of VOLETs aligned along the first direction; and an auxiliary line extending along the second direction and connecting at least two of the plurality of current supply lines.

Display

Various examples are provided related to driving a light emitting display in which variations in image quality and brightness can be suppressed despite long-term use, without adding a complicated circuit configuration. In one example, a method includes applying a voltage based on image data to be displayed to a gate electrode of a vertical organic light emitting transistor and applying a voltage, having a polarity opposite to that of the voltage applied to the gate electrode of the vertical organic light emitting transistor, to the gate electrode of the vertical organic light emitting transistor based on a value of a voltage being applied to a source electrode of the vertical organic light emitting transistor.

Method of driving a light emitting display and display

Various examples are provided related to compensating brightness of a display using a vertical organic light emitting transistor that suppresses variations in brightness over a long period of time and a display. In one example, a method includes applying a voltage for brightness inspection to a gate electrode of the vertical organic light emitting transistor to be corrected, measuring a current flowing through a current supply line through which the current is supplied to a source electrode of the vertical organic light emitting transistor by the application of the voltage for brightness inspection to the gate electrode of the vertical organic light emitting transistor to be corrected, and determining a corrected value of the voltage to be applied to the gate electrode of the vertical organic light emitting transistor based on a value of the current and characteristic information of the vertical organic light emitting transistor stored in the memory.

Method of compensating brightness of display and display

A liquid crystal display device includes: a substrate; a plurality of vertical organic light-emitting transistors; a data line that supplies a voltage to a gate electrode of the vertical organic light-emitting transistor; a thin-film transistor that is connected between the gate electrode of each of the vertical organic light-emitting transistors and the data line and controls supply of the voltage to the gate electrode of the vertical organic light-emitting transistor; a gate line that is connected to the gate electrode of the thin-film transistor and transmits a signal for switching the thin-film transistor; and a plurality of current supply lines that are wired in a first direction outside a formation region of the vertical organic light-emitting transistor, the current supply lines being in contact with a source electrode of the vertical organic light-emitting transistor to supply a current to the vertical organic light-emitting transistor.

Growing community of inventors

Yokkaichi, Japan

Hiromitsu Katsui