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Luminance control unit and display device including the same

A technology of brightness control and brightness modulation, used in static indicators, cathode ray tube indicators, instruments, etc., and can solve problems such as weak bright spots

Pending Publication Date: 2020-09-29
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the CAPS function, the low potential driving power voltage can be adjusted, therefore, weak bright spots may appear

Method used

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  • Luminance control unit and display device including the same
  • Luminance control unit and display device including the same
  • Luminance control unit and display device including the same

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Embodiment Construction

[0037] Hereinafter, aspects of some example embodiments will be described in more detail with reference to the accompanying drawings. However, the invention may be embodied in various different forms and should not be construed as limited to only the embodiments set forth herein. Rather, these embodiments are provided as examples so that this disclosure will be thorough and complete, and will fully convey the aspects and features of the invention to those skilled in the art. Therefore, processes, elements and techniques not necessary for a person of ordinary skill in the art to fully understand the aspects and features of the present invention may not be described or shown in the drawings. Unless otherwise stated, like reference numerals denote like elements throughout the drawings and written description, and thus description thereof may not be repeated. In the drawings, the relative sizes of elements, layers and regions may be exaggerated for clarity.

[0038] It will be u...

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Abstract

The invention provides a luminance control unit and a display device including the same. The luminance control unit includes: a driving power voltage setting unit configured to determine a driving power voltage to be provided to a display panel, the driving power voltage corresponding to a target brightness, based on a plurality of driving power voltages respectively corresponding to a plurality of reference brightnesses of the display panel; and a gamma voltage setting unit configured to determine a target luminance corresponding to the target brightness, based on a plurality of target luminances respectively corresponding to the plurality of reference brightnesses, and to set gamma voltages for implementing the target luminance, wherein the driving power voltage and the gamma voltages are differently set with respect to the same reference brightness according to an ambient illumination intensity of the display panel.

Description

[0001] This application claims priority and benefit from Korean Patent Application No. 10-2019-0032014 filed with the Korean Intellectual Property Office on March 20, 2019, the entire disclosure of which is hereby incorporated by reference. technical field [0002] Aspects of some example embodiments of the present disclosure generally relate to a brightness control unit and a display device including the brightness control unit. Background technique [0003] The display device can display images based on input image data. The display device can modulate the brightness of the input image data according to the average pixel level (APL) of the input image data, so that the power consumption of the display device can be reduced. This may be referred to as an automatic current limiting (ACL) function. [0004] The display device can also adjust the low potential driving power voltage according to the APL of the input image data, thereby reducing the power consumption of the dis...

Claims

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Application Information

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IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0626G09G3/3225G09G3/3233G09G2360/144G09G2320/0276G09G2320/0673G09G2360/16G09G2330/02G09G2330/028G09G5/10G09G3/3258G09G2330/021G09G2320/043
Inventor 表时伯金成国
Owner SAMSUNG DISPLAY CO LTD
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