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US 10,095,459 B2Granted
Display driving circuit and display device including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsYang-Hyo Kim, Do-Kyung Kim
Life of this patent
Estimating the term…
Abstract
A display driving circuit includes a command sync controller, a command pre-buffer and a command register. The command sync controller generates a first sync signal based on an external signal. The command pre-buffer stores a first command. The command register stores the first command provided from the command pre-buffer. The first sync signal is provided both to the command pre-buffer and to an external device of the display driving circuit. The command pre-buffer provides, in response to the first sync signal, the first command stored in the command pre-buffer to the command register.
Claims32
A display driving circuit comprising:
- a command sync controller configured to generate a first sync signal based on an external signal;
- a command pre-buffer configured to store a first command;
- and
- a command register configured to store the first command provided from the command pre-buffer and to execute the first command,
- wherein the first sync signal is provided both to the command pre-buffer and to an external device of the display driving circuit, and wherein the command pre-buffer is configured to provide, in response to the first sync signal, the first command stored in the command pre-buffer to the command register, and
- wherein the external signal is a completion signal that is provided from a host, and the completion signal indicates that a second command that is related to the first command has been provided to another display driving circuit.
3 more elements
A display driving circuit comprising:
- a command sync controller configured to generate a first sync signal based on an external signal;
- a command pre-buffer configured to store a first command;
- and
- a command register configured to store the first command provided from the command pre-buffer and to execute the first command,
- wherein the first sync signal is provided both to the command pre-buffer and to an external device of the display driving circuit, and wherein the command pre-buffer is configured to provide, in response to the first sync signal, the first command stored in the command pre-buffer to the command register;
- and
- wherein the external signal is a second sync signal which is provided from another display driving circuit that controls a second region of a display panel.
4 more elements
A display driving circuit comprising:
- a command sync controller configured to generate a first sync signal based on an external signal;
- a command pre-buffer configured to store a first command;
- and
- a command register configured to store the first command provided from the command pre-buffer and to execute the first command,
- wherein the first sync signal is provided both to the command pre-buffer and to an external device of the display driving circuit, and wherein the command pre-buffer is configured to provide, in response to receiving the first sync signal, the first command stored in the command pre-buffer to the command register,
- wherein the command pre-buffer is further configured to provide the first command to the command register in response to an internal sync signal after receiving the first sync signal.
3 more elements
A display driving circuit comprising:
- a first interface circuit configured to communicate with a host;
- a second interface circuit configured to communicate with another display driving circuit;
- a first command pre-buffer configured to store a first command provided through the first interface circuit, the first command controlling a first region of a display panel;
- a command register coupled to the first command pre-buffer;
- and
- a command sync controller configured to receive a second sync signal through the second interface circuit and generate a first sync signal based on the second sync signal,
- wherein the first command pre-buffer is configured to provide, in response to the first sync signal, the first command to the command register, and the command register is configured to perform the first command and transmit control signals.
4 more elements
A display device comprising:
- an application processor configured to generate a command for a displaying operation of the display device, wherein the command includes a first command and a second command;
- a first display driving circuit coupled to the application processor and including a first command pre-buffer configured to store the first command;
- a first command register coupled to the first command pre-buffer;
- and
- a second display driving circuit coupled to the application processor and configured to store the second command,
- wherein the application processor is further configured to provide, after providing the first command and the second command to the first and second display driving circuits, a completion signal to the first display driving circuit, wherein the first display driving circuit is further configured to generate a first sync signal in response to the completion signal and provide the first sync signal to the second display driving circuit, and wherein the first and second display driving circuits are further configured to perform the first and second commands in response to the first sync signal,
- wherein in response to the first sync signal, the first command register is configured to perform the first command and transmit control signals.
4 more elements
A display device, comprising:
- a plurality of display driving circuits;
- and
- an application processor coupled to the display driving circuits and configured to:
- provide a plurality of commands for a displaying operation to the plurality of display driving circuits;
- and
- provide a completion signal to a first display driving circuit of the plurality of display driving circuits if the application processor has completed providing of the plurality of commands to the plurality of display driving circuits,
- wherein at least the first display driving circuit generates control signals in response to performance of at least one of the plurality of commands, and the first display driving circuit includes a command pre-buffer, a command register coupled to the command pre-buffer and a command sync controller configured to receive the completion signal and generate a first sync signal,
- wherein in response to the first sync signal, the command register of the first display driving circuit is configured to perform a first command of the plurality of commands and transmit the control signals.
5 more elements
Dependencies are inferred from the claim text.