Color filter array substrate and liquid crystal display panel
a color filter array and substrate technology, applied in the field of display technology, can solve the problems of affecting display performance, bcs/bm-less planarization layer is not employed in hva technology, and the display product cost will increas
Active Publication Date: 2017-02-23
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Benefits of technology
[0024]Compared with the prior art, the present invention changes a stacking structure of color resists to enhance liquidity of the PI and LCD on the basis of without increase of a planarization layer for not increasing costs. That is, channels are formed at locations which color resists overlap in a color filter layer, at this time, and light shielding does not function because there is only one layer of the color resists existing at the channels. In this case, there is a risk of light leakage, so the present invention provides a common electrode line on a first metal layer corresponding to the channels in a Y-axis direction and a metal line on a second metal layer corresponding to the channels in an X-axis direction to prevent the light leakage. The embodiments of the present invention can not only effectively shield the light leakage, but also increase liquidity of the PI and LCD.
Problems solved by technology
However, costs will increase for display products applying BCS / BM-less technology in HVA (high transmittance vertical alignment) mode if the planarization layer is used.
Consequently, the planarization layer is not employed in HVA technology.
The problem, in which projections around sides are generated due to overlapping of color resists when the HVA-mode display products apply BCS / BM-less technology, is raised, so that a phenomenon is generated about irregular Polyimide (PI) and liquid crystal flow during the processes of PI coating and liquid crystal filling due to the retaining projections around sides and thereby display performance is affected.
Method used
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[0029]The terms as used in this specification, “an embodiment” means that the description in connection with the embodiment serves as an example, instance, or illustration of the disclosure. Furthermore, the articles “a” and “an” as used in this specification and the appended claims should generally be construed to mean “one or multiple”, unless specified or clear from context to be directed to be a singular form.
[0030]According to an embodiment of the present invention, a stacking structure of color resists would be changed to increase liquidity of the PI and LCD on the basis of without an increase of a planarization layer for not increasing costs. That is, channels are formed at locations where color resists overlay in a color filter layer, at this time, and a function of shielding light does not work because there is only one layer of the color resists existing at the channels. In this case, there is a risk of light leakage, so the present invention provides a common electrode li...
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Abstract
A color filter array substrate is disclosed. The color filter array substrate includes a glass substrate, a first metal layer, an insulating layer, an active layer, an ohmic contact layer, a second metal layer, a first passivation layer, a color filter layer, a second passivation layer, and a pixel electrode layer. In the color filter layer, channels are formed at locations where color resists overlap, a common electrode line is disposed on the first metal layer corresponding to the channels and a metal line is disposed on the second metal layer corresponding to the channels. The present invention can effectively shield light leakage, and can also increase liquidity of the PI and LCD.
Description
BACKGROUND OF THE INVENTION[0001]Field of the Invention[0002]The present invention relates to a field of display technology, and more particularly to a color filter array substrate and a liquid crystal display (LCD) panel.[0003]Description of Prior Art[0004]Black column space (BCS) or BM (Black Matrix)-less technology applied to LCD panels can reduce a process using BM, and thus cost can be saved. In the BCS technique, black materials are used in periphery to have an effect of being directly substituted for the BM to function for light shielding. Besides, another effect is to support a thickness of a cell of an LCD panel when the black materials are used in an AA (active area). The light shielding for a scanning line and a data line in the AA relies on mutuality of color resist stacking and metals to carry it out. The stacking of color resists generally employs a red color resist and a blue color resist to be overlapped since the spectrums of these two colors are not overlapped. In ...
Claims
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IPC IPC(8): G02B5/20H01L27/12G02F1/1368
CPCG02B5/201G02F2001/136222H01L27/1248G02F1/1368G02F1/134318G02F1/136218G02F1/136222H01L27/124
InventorYE, YANXI
OwnerTCL CHINA STAR OPTOELECTRONICS TECH CO LTD