Liquid crystal display panel and display terminal
AssigneePurplevine IP
InventorsQi Zhang, Yoonsung Um, Bangyin Peng
Life of this patent
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Abstract
The present application discloses a liquid crystal display panel and a display terminal, a light transmittance of a primary area color filter block of the liquid crystal display panel is less than a light transmittance of a secondary area color filter block; when a gray level value of an image data is less than a preset value, the primary area pixel electrode is driven to display, and when the gray level value of the image data is greater than the preset value, the primary area pixel electrode and the secondary area pixel electrode are driven to display, so that the overall gray level color gamut is increased without losing the light transmittance, and the color deviation at the large viewing angle is improved.
Claims20
A liquid crystal display panel comprising:
- a data driving unit;
- a first substrate comprising a first base substrate and a pixel electrode layer disposed on the first base substrate, wherein the pixel electrode layer comprises a plurality of subpixel electrodes arranged in an array, each of the plurality of subpixel electrodes comprises a primary area pixel electrode and a secondary area pixel electrode;
- a second substrate disposed opposite to the first substrate, wherein the second substrate comprises a second base substrate and a color filter layer disposed on one side of the second base substrate facing the first substrate, the color filter layer comprises a plurality of color filter blocks arranged in an array, the color filter block comprises a primary area color filter block corresponding to the primary area pixel electrode and a secondary area color filter block corresponding to the secondary area pixel electrode, and the primary area color filter block has a light transmittance less than a light transmittance of the secondary area color filter block;
- and
- a liquid crystal layer disposed between the first substrate and the second substrate,
- wherein the primary area pixel electrode is in a light transmitting state and the secondary area pixel electrode is not in the light transmitting state when a gray level value of an image data is less than a preset value;
- the primary area pixel electrode and the secondary area pixel electrode are in the light transmitting state when the gray level value of the image data is greater than the preset value;
- wherein only the primary area pixel electrode is operated in a low gray level region lower than the preset value to improve a color gamut representation of the low gray level region;
- when the gray level exceeds the preset value, the secondary area pixel electrode starts to operate, and a color gamut representation starts to decrease, and as the gray level continuously increases to the 255, a ratio of a color gamut area to an NTSC color gamut area gradually decreases and stably remains at approximately 72% of the NTSC color gamut;
- wherein a thickness of the secondary area color filter block is less than a thickness of the primary area color filter block, and wherein an area ratio of the secondary area color filter block to the secondary area pixel electrode is the same as that of the primary area color filter block to the primary area pixel electrode.
A display terminal comprising a terminal main body, a liquid crystal display panel and a timing control unit, wherein the terminal main body is connected to the timing control unit for providing displayed content, and the timing control unit is connected to the liquid crystal display panel for converting the displayed content into the image data and supplying the image data to the liquid crystal display panel;
- the liquid crystal display panel comprises:
- a data driving unit;
- a first substrate comprising a first base substrate and a pixel electrode layer disposed on the first base substrate, wherein the pixel electrode layer comprises a plurality of subpixel electrodes arranged in an array, each of the plurality of subpixel electrodes comprises a primary area pixel electrode and a secondary area pixel electrode;
- a second substrate disposed opposite to the first substrate, wherein the second substrate comprises a second base substrate and a color filter layer disposed on one side of the second base substrate facing the first substrate, the color filter layer comprises a plurality of color filter blocks arranged in an array, the color filter block comprises a primary area color filter block corresponding to the primary area pixel electrode and a secondary area color filter block corresponding to the secondary area pixel electrode, and the primary area color filter block has a light transmittance less than a light transmittance of the secondary area color filter block;
- and
- a liquid crystal layer disposed between the first substrate and the second substrate,
- wherein the primary area pixel electrode is in a light transmitting state and the secondary area pixel electrode is not in the light transmitting state when a gray level value of the image data is less than a preset value;
- the primary area pixel electrode and the secondary area pixel electrode are in the light transmitting state when the gray level value of the image data is greater than the preset value;
- wherein only the primary area pixel electrode is operated in a low gray level region lower than the preset value to improve a color gamut representation of the low gray level region;
- when the gray level exceeds the preset value, the secondary area pixel electrode starts to operate, and a color gamut representation starts to decrease, and as the gray level continuously increases to the 255, a ratio of a color gamut area to an NTSC color gamut area gradually decreases and stably remains at approximately 72% of the NTSC color gamut;
- wherein a thickness of the secondary area color filter block is less than a thickness of the primary area color filter block, and wherein an area ratio of the secondary area color filter block to the secondary area pixel electrode is the same as that of the primary area color filter block to the primary area pixel electrode.
Dependencies are inferred from the claim text.