Color film substrate, driving method thereof, display panel and display device

Abstract

The invention relates to the technical field of display, in particular to a color film substrate, a driving method thereof, a display panel and a display device. The problem that an existing traditional black matrix cannot effectively improve light leakage of a shading region is solved. The color film substrate comprises a first controllable shading portion and a second controllable shading portion which are located on an orthographic projection on the substrate and on the two sides of a black matrix strip extending in the first direction and/or the second direction. On the premise that the width of the existing black matrix strip is not changed, the controllable shading portions of the shading region can be controlled to be in a shading shape, so that the purpose of light leakage caused when the shading region for shading signal lines is not uniform in orientation is achieved; meanwhile, the controllable shading portions of the non-shading region are kept to be transparent, so that the certain opening rate is ensured. Accordingly, the problem of light leakage of the shading region of the signal lines is effectively solved, and the display quality is improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a color filter substrate and a driving method thereof, a display panel and a display device. Background technique [0002] In the prior art, due to the different film types and film thicknesses on the thin-film transistor substrate, there is an inherent topography of ups and downs on the surface of the substrate film layer. This uneven topography will seriously affect the uniformity of the orientation process; refer to Fig. 1(a) is a top view of a pixel unit after the alignment process. The pixel unit A is surrounded by the data line 11, the data line 12, the gate line 13, and the gate line 14, wherein the orientation direction is the dotted line As shown by the arrow, when performing the rubbing orientation process, combined with the cross-sectional view obtained by cutting along the a-a cutting line in FIG. 1(a) shown in FIG. , and the substrate 16 moves in a directio...

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a color filter substrate and its driving method, a display panel and a display device to solve the problem in the prior art that the traditional black matrix cannot effectively improve the light leakage in the shielded area

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