Apparatus for testing display device and method for testing the same
AssigneeLG Display Co., Ltd.
InventorsPil-Sung Kang, Hyun-Taek Nam
Life of this patent
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Abstract
An apparatus for testing a display device includes a display device to display test patterns, a graphic process unit to supply analog mode signals and digital mode signals to the display device, and a control unit to allow test patterns of an analog testing mode and test patterns of a digital testing mode to be sequentially displayed on the display device upon receiving a control signal from the graphic process unit, and to output a control signal to the display device to sequentially change display characteristics of an image according to an on-screen-display mode testing menus.
Claims32
An apparatus for testing a display device, comprising:
- a display device to display test patterns;
- a graphic process unit to supply analog mode signals and digital mode signals to the display device;
- and
- a control unit to allow test patterns of an analog testing mode and test patterns of a digital testing mode on the display device upon receiving a first control signal from the graphic process unit, and to output a second control signal to the display device to sequentially change display characteristics of an image according to an on-screen-display mode testing menu,
- wherein the test patterns of the digital testing mode is displayed after the display of the test pattern of the analog testing mode is terminated.
A method for testing a display device, comprising:
- transmitting analog mode signals and digital mode signals to a display device;
- sequentially displaying test patterns of an analog mode testing and a test patterns of digital mode testing on the display device and sequentially changing display characteristics of an image according to on-screen-display mode testing menus;
- and
- checking image quality of the test patterns of the analog mode testing and the test patterns of the digital mode testing that are sequentially displayed on the display device, and checking the display characteristics of the image according to the on-screen-display mode testing menus which are sequentially changed at the display device,
- wherein the test patterns of the digital testing mode is displayed after the display of the test pattern of the analog testing mode is terminated.
A testing apparatus, comprising:
- a display device displaying test patterns;
- a graphic process unit supplying analog mode signals and digital mode signals to the display device;
- and
- a control unit receiving a first control signal from the graphic process unit to sequentially display test patterns of an analog testing mode and test patterns of a digital testing mode on the display device, the control unit outputting a second control signal to the display device to sequentially change display characteristics of an image according to mode testing menu, wherein the test patterns of the digital testing mode is displayed after the display of the test pattern of the analog testing mode is terminated.
A method for testing a display device, comprising:
- transmitting analog mode signals and digital mode signals to a display device;
- sequentially displaying test patterns of an analog mode testing and test patterns of digital mode testing on the display device and sequentially changing display characteristics of an image according to on-screen-display mode testing menus;
- inspecting image quality of the sequentially displayed test patterns of the analog mode testing and the test patterns of the digital mode;
- and
- inspecting the display characteristics of the image according to the on-screen-display mode testing menus displayed on the display device,
- wherein the test patterns of the digital testing mode is displayed after the display of the test pattern of the analog testing mode is terminated.
Dependencies are inferred from the claim text.