Multi display device and method of controlling the same
AssigneeSamsung Electronics Co., Ltd.
InventorsIm-Soo Kang, Jae-Goo Lee
Life of this patent
Estimating the term…
Abstract
A multi display device includes a row drive circuit, a column drive circuit and a column line selection circuit. The row drive circuit drives first row lines of a first display panel and second row lines of at least one second display panel. The column drive circuit drives first column lines of the first display panel and second column lines of the second display panel. The column line selection circuit controls a connection between the column drive circuit and one of the first column lines and the second column lines based on a column line selection signal.
Claims15
A multi display device comprising:
- a display control circuit, receiving a display selection signal, and according to the display selection signal generating a column line selection signal for selecting one of a first display panel and at least one second display panel to activate;
- a row drive circuit configured to drive first row lines of the first display panel and second row lines of the at least one second display panel;
- a column drive circuit having column lines that branch into first column lines that provide data to the first display panel and that branch into second column lines that provide data to the second display panel;
- and
- a column line selection circuit configured to control, based upon the column line selection signal, a branching connection between the column drive circuit and one of the second column lines that circumvent the first display panel such that data is provided to the second display panel,
- wherein the column line selection circuit is external to the first display panel and to the second display panel.
A method of controlling a multi display device, comprising:
- providing a column drive circuit to commonly drive first column lines of a first display panel and the second column lines of at least one second display panel;
- providing a column line selection circuit external to the first display panel and to the second display panel for electrically disconnecting the second column lines from the column drive circuit when only the first display panel is activated;
- receiving a display selection signal for selecting a display panel to be activated;
- generating a column line selection signal based on the display selection signal;
- and
- driving one of the first column lines of the first display panel and the second column lines of the at least one second display panel based on the column line selection signal,
- wherein the column drive circuit comprises column lines that branch into the first column lines that provide data to the first display panel and that branch into the second column lines that provide data to the second display panel, and
- wherein based upon the column line selection signal, a branching connection is made between the column drive circuit and one of the second column lines that circumvent the first display panel such that data is provided to the second display panel.
Dependencies are inferred from the claim text.