Display device including a dynamic capacitance compensation lookup table

Patent metadata

Field	Value
Publication number	US-2016189684-A1
Application number	US-201514732900-A
Country	US
Kind code	A1
Filing date	Jun 8, 2015
Priority date	Dec 29, 2014
Publication date	Jun 30, 2016
Grant date	—

Abstract

A display device includes an external image processing set and a display assembly configured to receive converted image data from the external image processing set and display an image corresponding to the converted image data. The display assembly includes a dynamic capacitance compensation lookup table storage unit which stores therein a dynamic capacitance compensation lookup table, and the external image processing set includes a memory which receives the dynamic capacitance compensation lookup table from the display assembly and stores therein the received dynamic capacitance compensation lookup table, and a graphic processing unit which outputs converted image data in which current frame data has undergone dynamic capacitance compensation based on the stored dynamic capacitance compensation lookup table, the current frame data and previous frame data.

First claim

What is claimed is:

1 . A display device, comprising:
an external image processing set; a display assembly configured to receive converted image data from the external image processing set and configured to display an image corresponding to the converted image data, wherein the display assembly comprises:
a dynamic capacitance compensation lookup table storage unit configured to store therein a dynamic capacitance compensation lookup table,
wherein the external image processing set comprises:
a memory configured to receive the dynamic capacitance compensation lookup table from the display assembly and configured to store therein the received dynamic capacitance compensation lookup table; and
a graphic processing unit configured to output converted image data, the converted image data comprising current frame data that has undergone dynamic capacitance compensation based on the stored dynamic capacitance compensation lookup table, the current frame data, and previous frame data.

2 . The display device of claim 1 , wherein:
the display assembly further comprises a first input/output port; the external image processing set further comprises a second input/output port electrically connected to the first input/output port; and the stored dynamic capacitance compensation lookup table is configured to be transmitted from the display assembly to the external image processing set through the first input/output port and the second input/output port.

3 . The display device of claim 2 , wherein the first input/output port and the second input/output port comprise:
a main link configured to transmit converted image data from the external image processing set to the display assembly, and an auxiliary channel configured to perform bidirectional transmission of auxiliary data between the external image processing set and the display assembly.

4 . The display device of claim 3 , wherein the first input/output port and the second input/output port each comprise at least one of an embedded display port, a display port, a digital visual interface (DVI) port, a high definition multimedia interface (HDMI) port, and an inter-integrated circuit (I2C) connector terminal.

5 . The display device of claim 1 , wherein the external image processing set is physically separated from the display assembly.

6 . The display device of claim 1 , wherein the dynamic capacitance compensation lookup table storage unit is a nonvolatile memory, and the memory is a volatile memory.

7 . The display device of claim 1 , wherein the display assembly further comprises:
a unique information value storage unit configured to store therein unique information data regarding characteristics of the display assembly; and a timing controller configured to:
receive the converted image data from the external image processing set
process the received converted image data, and
provide processed converted image data to a display panel.

8 . The display device of claim 7 , wherein the display assembly further comprises a first input/output port,
wherein the external image processing set further comprises a second input/output port electrically connected to the first input/output port, wherein the unique information value storage unit comprises the dynamic capacitance compensation lookup table storage unit, wherein the stored dynamic capacitance compensation lookup table is configured to be transmitted from the display assembly to the external image processing set through the first input/output port and the second input/output port via the timing controller.

9 . The display device of claim 8 , wherein the first input/output port and the second input/output port comprise:
a main link configured to transmit converted image data from the external image processing set to the display assembly, and an auxiliary channel configured to perform bidirectional transmission of auxiliary data between the external image processing set and the display assembly.

10 . The display device of claim 7 , wherein the display assembly further comprises a first input/output port and a third input/output port, wherein:
the external image processing set further comprises a second input/output port electrically connected to the first input/output port and a fourth input/output port electrically connected to the third input/output port, the unique information value storage unit comprises the dynamic capacitance compensation lookup table storage unit, the stored dynamic capacitance compensation lookup table is configured to be transmitted from the display assembly to the external image processing set through the third input/output port and the fourth input/output port.

11 . The display device of claim 10 , wherein the first input/output port and the second input/output port comprises:
a main link which is configured to transmit converted image data from the external image processing set to the display assembly, and an auxiliary channel configured to perform bidirectional transmission of auxiliary data between the external image processing set and the display assembly.

12 . The display device of claim 7 , wherein the display assembly further comprises a first input/output port and a third input/output port, wherein:
the external image processing set further comprises a second input/output port electrically connected to the first input/output port and a fourth input/output port electrically connected to the third input/output port, the unique information value storage unit is configured to transmit unique information data to the timing controller, and the stored dynamic capacitance compensation lookup table is configured to be transmitted from the display assembly to the external image processing set through the third input/output port and the fourth input/output port.

13 . The display device of claim 12 , wherein the first input/output port and the second input/output port comprise:
a main link configured to transmit converted image data from the external image processing set to the display assembly, and an auxiliary channel configured to perform bidirectional transmission of auxiliary data between the external image processing set and the display assembly.

14 . The display device of claim 13 , wherein the first input/output port and the second input/output port each comprise at least one of an embedded display port, a display port, a digital visual interface (DVI) port, a high definition multimedia interface (HDMI) port, and an inter-integrated circuit (I2C) connector terminal.

15 . The display device of claim 1 , wherein the memory comprises:
a memory controller, the memory controller configured to: store current frame data into a frame memory of the memory, and store the dynamic capacitance compensation lookup table in a dynamic capacitance compensation lookup table storage section of the memory.

16 . The display device of claim 15 , wherein the graphic processing unit comprises:
dynamic capacitance compensation processing logic comprising a dynamic capacitance compensation algorithm, the dynamic capacitance compensation processing logic configured to:
receive previous frame data and the stored dynamic capacitance compensation lookup table through the memory controller, and
output converted image data in which current frame data has undergone dynamic capacitance compensation based on the current frame data, previous frame data and the stored dynamic capacitance compensation lookup table.

Assignees

• Samsung Display Co Ltd

Inventors

• Ko Hyun-Seok
• Park Jin Kyu
• Lee Whee Won
• Han Sang Su

Classifications

• G09G3/2096 Primary

  Details of the interface to the display terminal specific for a flat panel (suitable for both CRT and flat panel G09G5/006; specific for a CRT G09G1/167) · CPC title

• G09G5/003

  Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto (specific for a CRT G09G1/165; for a flat panel G09G3/2092) · CPC title

• G09G5/18 Primary

  Timing circuits for raster scan displays (specially adapted for television H04N {; synchronisation between the display unit and other display units, videodisc player G09G5/12}) · CPC title

• G09G3/36 Primary

  using liquid crystals · CPC title

• G09G2300/04

  Structural and physical details of display devices · CPC title