CN116540433A

CN116540433A - Color film substrate, display panel and driving method of display panel

Info

Publication number: CN116540433A
Application number: CN202310605270.4A
Authority: CN
Inventors: 顾小祥; 许雅琴; 黄丽玉
Original assignee: InfoVision Optoelectronics Kunshan Co Ltd
Current assignee: InfoVision Optoelectronics Kunshan Co Ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-08-04

Abstract

The invention provides a color film substrate, a display panel and a driving method of the display panel, wherein the color film substrate comprises a first color resistance layer and a second color resistance layer, the first color resistance layer is an electrochromic color resistance layer, the first color resistance layer comprises a plurality of first color resistances which are in one-to-one correspondence with sub-pixel areas, and the first color resistance at least comprises a first sub-color resistance, a second sub-color resistance and a third sub-color resistance and is configured to be capable of being switched between a transparent state and a color state respectively and independently; the second color resistance layer comprises a plurality of second color resistances which are arranged in one-to-one correspondence with the plurality of first color resistances, and the spectrum of the target color of the first color resistance in the color state is different from the spectrum of the color corresponding to the second color resistance. In the color film substrate, the display panel and the driving method of the display panel, the display panel can be switched between a wide viewing angle and a narrow viewing angle; meanwhile, the dark state brightness is extremely low, the contrast ratio is high, the image quality is good, and the layering sense is obvious, so that the common wide-narrow visual angle switching can be realized, and the high-contrast wide-narrow visual angle switching can also be realized.

Description

Color film substrate, display panel and driving method of display panel

Technical Field

The present invention relates to the field of display technologies, and in particular, to a color film substrate, a display panel, and a driving method of the display panel.

Background

The liquid crystal display device (liquid crystal display, LCD) has advantages of good image quality, small size, light weight, low driving voltage, low power consumption, no radiation, and relatively low manufacturing cost, and is dominant in the field of flat panel display.

The current liquid crystal display device is gradually developed towards a wide viewing angle, which is not only a mobile terminal application of a mobile phone, a desktop display or a notebook computer, but also a display device is required to have a function of switching between a wide viewing angle and a narrow viewing angle in many occasions besides the requirement of the wide viewing angle. At present, the shutter shielding film is attached to the display screen to realize wide and narrow viewing angle switching, when peep prevention is needed, the shutter shielding film is utilized to shield the screen, so that the viewing angle can be reduced, but the shutter shielding film is additionally prepared in the mode, great inconvenience is caused to a user, one shutter shielding film can only realize one viewing angle, once the shutter shielding film is attached, the viewing angle is fixed in a narrow viewing angle mode, free switching cannot be performed between the wide viewing angle mode and the narrow viewing angle mode, and the shutter shielding film can cause luminance reduction to influence the display effect. In addition, the pixel region in the dark state inevitably transmits light during display, so that the dark state brightness becomes high, and the contrast ratio is low.

Disclosure of Invention

Accordingly, the present invention is directed to a color film substrate, a display panel and a driving method thereof, so as to switch the wide and narrow viewing angles of the display panel.

The invention provides a color film substrate, which is provided with a shading structure and a plurality of sub-pixel areas, wherein the shading structure is used for mutually spacing the plurality of sub-pixel areas, the color film substrate comprises a first color resistance layer and a second color resistance layer, the first color resistance layer is an electrochromic color resistance layer, the first color resistance layer comprises a plurality of first color resistances, the first color resistances are in one-to-one correspondence with the sub-pixel areas, and the first color resistances at least comprise a first sub-color resistance, a second sub-color resistance and a third sub-color resistance which are sequentially arranged; the second color resistance layer comprises a plurality of second color resistances, the first color resistances and the second color resistances are arranged in one-to-one correspondence, and the frequency spectrum of the target color of the first sub color resistances, the second sub color resistances and the third sub color resistances in the color state is different from the frequency spectrum of the corresponding color of the second color resistances.

In one embodiment, the first color resist layer further includes a plurality of first transparent electrodes and at least one second transparent electrode, the first color resist is disposed between the first transparent electrodes and the second transparent electrodes, and the plurality of first color resists are disposed in one-to-one correspondence with the plurality of first transparent electrodes, and the first color resist is switched between the transparent state and the color state according to a voltage difference between the first transparent electrodes and the second transparent electrodes; the first transparent electrode at least comprises a first sub-electrode, a second sub-electrode and a third sub-electrode which are mutually insulated, and the first sub-color resistance, the second sub-color resistance and the third sub-color resistance are arranged in one-to-one correspondence with the first sub-electrode, the second sub-electrode and the third sub-electrode.

In one embodiment, the color filter comprises a plurality of second transparent electrodes, wherein the second transparent electrodes are arranged in one-to-one correspondence with the first color resistors; the first sub-electrodes of the first transparent electrodes corresponding to all the sub-pixel areas are electrically connected with each other, the second sub-electrodes of the first transparent electrodes corresponding to all the sub-pixel areas are electrically connected with each other, and the third sub-electrodes of the first transparent electrodes corresponding to all the sub-pixel areas are electrically connected with each other, or each sub-electrode is respectively and independently connected or disconnected.

In one embodiment, the color filter comprises a second transparent electrode, and the second transparent electrode covers the whole color filter substrate; each sub-electrode is respectively and independently connected or disconnected.

In one embodiment, the color filter comprises a second transparent electrode, and the second transparent electrode covers the whole color filter substrate; the first sub-electrodes of the first transparent electrodes corresponding to all the sub-pixel areas are electrically connected with each other, the second sub-electrodes of the first transparent electrodes corresponding to all the sub-pixel areas are electrically connected with each other, and the third sub-electrodes of the first transparent electrodes corresponding to all the sub-pixel areas are electrically connected with each other.

In one embodiment, the area of the second sub-color resist is larger than the areas of the first sub-color resist and the third sub-color resist.

In one embodiment, the sub-pixel region includes a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region, the first color resistor includes a red electrochromic resistor, a green electrochromic resistor, and a blue electrochromic resistor, and the second color resistor includes a red resistor corresponding to the red sub-pixel region, a green resistor corresponding to the green sub-pixel region, and a blue resistor corresponding to the blue sub-pixel region; the green electrochromic resistor is arranged corresponding to the red sub-pixel region, the blue electrochromic resistor is arranged corresponding to the green sub-pixel region, and the red electrochromic resistor is arranged corresponding to the blue sub-pixel region.

In one embodiment, the color film substrate further includes a first substrate; the first color resistance layer and the second color resistance layer are respectively positioned at two sides of the first substrate, or the first color resistance layer and the second color resistance layer are arranged at the same side of the first substrate.

The invention also provides a display panel which comprises a color film substrate, an array substrate opposite to the color film substrate and a liquid crystal layer arranged between the color film substrate and the array substrate, wherein the color film substrate is the color film substrate.

The invention also provides a driving method of the display panel, the display panel comprises a color film substrate, an array substrate and a liquid crystal layer arranged between the color film substrate and the array substrate, the color film substrate is the color film substrate, and the driving method of the display panel comprises the following steps:

applying a display data voltage signal to the array substrate;

the first color resistor is in a transparent state without applying pressure difference between the first transparent electrode and the second transparent electrode, so that common wide-viewing angle display is realized;

and applying a pressure difference between the first sub-electrode and the second transparent electrode and/or between the third sub-electrode and the second transparent electrode to enable the first sub-color resistor and/or the third sub-color resistor to be in a color state, and not applying a pressure difference between the second sub-electrode and the second transparent electrode to enable the second sub-color resistor to be in a transparent state, so that common narrow-viewing angle display is realized.

In one embodiment, the method further comprises:

the first color resistor corresponding to the bright state area is in a transparent state, and the first color resistor corresponding to the dark state area is in a color state, so that high-contrast wide-view-angle display is realized;

And applying a pressure difference between the first sub-electrode and the second transparent electrode corresponding to the bright state region and/or between the third sub-electrode and the second transparent electrode, and not applying a pressure difference between the second sub-electrode and the second transparent electrode corresponding to the bright state region, so that the first sub-color resistor and/or the third sub-color resistor corresponding to the bright state region are in a color state, the second sub-color resistor corresponding to the bright state region is in a transparent state, and applying a pressure difference between the second sub-electrode and the second transparent electrode corresponding to the dark state region, so that the second sub-color resistor corresponding to the dark state region is in a color state, and high-contrast narrow-view angle display is realized.

In one embodiment, the method further comprises:

applying a pressure difference between a part of the first transparent electrode and the second transparent electrode, and not applying a pressure difference between the rest of the first transparent electrode and the second transparent electrode, so that a part of the first color resistor is in a color state, and the rest of the first color resistor is in a transparent state, thereby realizing a local dimming mode; or alternatively, the process may be performed,

applying a pressure difference between the first transparent electrode and the second transparent electrode corresponding to the first color resistor in the color state, and not applying a pressure difference between the first transparent electrode and the second transparent electrode corresponding to the other first color resistors, so that the first color resistor in the color state is in the color state, the other first color resistors are in the transparent state, and simultaneously, the sub-pixel area of the first color is transparent, the other sub-pixel areas are opaque, and a pure color display mode of the first color is realized; or alternatively, the process may be performed,

Applying a pressure difference between the first transparent electrode and the second transparent electrode corresponding to the sub-pixel areas except the first color, and not applying a pressure difference between the first transparent electrode and the second transparent electrode corresponding to the second color resistance corresponding to the first color, and simultaneously making the sub-pixel areas corresponding to the first color resistance in a color state opaque, and making the rest of the sub-pixel areas transparent, so as to realize a pure color display mode of the first color; or alternatively, the process may be performed,

and applying a pressure difference between the first transparent electrode and the second transparent electrode corresponding to the area where the second color resistance cannot be displayed normally, so that the corresponding first color resistance is switched to a color state, and the corresponding second color resistance is opaque.

In the color film substrate, the display panel and the driving method of the display panel provided by the embodiment of the invention, as each color resistor of the electrochromic color resistor layer comprises a plurality of sub-color resistors, the display panel can be switched between a wide viewing angle and a narrow viewing angle by switching different sub-color resistors in the same sub-pixel region into a transparent state and a color state, and compared with the display panel provided with the dimming box, the thickness of the display panel is greatly reduced, and the lightening and thinning of the display panel are facilitated; meanwhile, the sub-pixel area in the dark state cannot penetrate through the first color resistor and the second color resistor at the same time even if a small amount of light leakage exists in the dark state area due to different frequency spectrums of the first color resistor and the second color resistor, so that the dark state brightness is extremely low, the contrast ratio is higher, the image quality is better, the layering sense is obvious, and therefore, the display panel adopting the color film substrate of the embodiment can realize common wide-narrow visual angle switching and high contrast ratio wide-narrow visual angle switching.

Brief description of the drawings

Fig. 1 is a schematic structural diagram of a color film substrate according to a first embodiment of the present invention.

Fig. 2 is a schematic plan view of the color film substrate shown in fig. 1.

Fig. 3 is a schematic structural diagram of the color film substrate shown in fig. 1 in a normal wide viewing angle mode.

Fig. 4 is a schematic structural diagram of the color film substrate shown in fig. 1 in a normal bidirectional narrow viewing angle mode.

Fig. 5 is a schematic structural diagram of the color film substrate shown in fig. 1 in a normal unidirectional narrow viewing angle mode.

Fig. 6 is a schematic structural diagram of the color film substrate shown in fig. 1 in a high-contrast wide-viewing angle mode.

Fig. 7 is a schematic structural diagram of the color film substrate shown in fig. 1 in a high-contrast bi-directional narrow viewing angle mode.

Fig. 8 is a schematic structural diagram of the color film substrate shown in fig. 1 in a high-contrast unidirectional narrow viewing angle mode.

Fig. 9 is a schematic structural diagram of the color film substrate shown in fig. 1 in a local dimming mode.

Fig. 10 is a schematic structural diagram of the color film substrate shown in fig. 1 in a solid color display mode.

Fig. 11 is a schematic structural diagram of the color film substrate shown in fig. 1 in a solid color display mode.

Fig. 12 is an enlarged cross-sectional view of the first color resist layer of the color film substrate shown in fig. 1.

Fig. 13 is a schematic diagram of the first color resist layer shown in fig. 12.

Fig. 14 is a schematic structural diagram of a color filter substrate according to a second embodiment of the present invention.

Fig. 15 is a schematic structural diagram of a color filter substrate according to a third embodiment of the present invention.

Fig. 16 is a schematic plan view of the color film substrate shown in fig. 15.

Fig. 17 is a schematic structural diagram of a color filter substrate according to a fourth embodiment of the present invention.

Fig. 18 is a schematic structural diagram of a color filter substrate according to a fifth embodiment of the present invention.

Fig. 19 is a schematic structural view of a display panel according to a sixth embodiment of the present invention.

Fig. 20 (a) to 20 (b) are schematic views of a part of structures during a manufacturing method of a display panel.

Preferred embodiments of the invention

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.

The invention provides a color film substrate, a display panel and a driving method of the display panel, wherein the switching of wide and narrow visual angle modes is realized through the arrangement and the application of signals of a first color resistance layer and a second color resistance layer of the color film substrate, and meanwhile, the problems of vertical lines and horizontal lines in the traditional architecture are solved, and the display image quality of the display panel is improved.

First embodiment

Referring to fig. 1, in the color filter substrate provided in the first embodiment of the present invention, a light shielding structure 11 and a plurality of sub-pixel regions P are disposed on the color filter substrate, and the light shielding structure 11 separates the sub-pixel regions P from each other. The color film substrate includes a first color resist layer 13, a first substrate 15 and a second color resist layer 17, the first color resist layer 13 is an electrochromic color resist layer, the first color resist layer 13 includes a plurality of first color resists 132, the first color resists 132 are in one-to-one correspondence with the sub-pixel regions P, the first color resists 132 can be switched between a transparent state and a color state, the first color resists 132 include a first sub-color resist 1322, a second sub-color resist 1324 and a third sub-color resist 1326, and the first sub-color resist 1322, the second sub-color resist 1324 and the third sub-color resist 1326 are configured to be switched between the transparent state and the color state respectively and independently. The second color resist layer 17 includes a plurality of second color resists 172. The first color resistors 132 and the second color resistors 172 are disposed in one-to-one correspondence, and the spectrum of the target color of the first color resistor 132 in the color state is different from the spectrum of the color of the corresponding second color resistor 172. The difference in spectrum herein means that the spectrum ranges do not overlap, for example, the blue spectrum is 420nm to 470nm, the green spectrum is 500nm to 570nm, the red spectrum is 630nm to 780nm, and the spectrum ranges of blue, green, and red do not overlap each other. In addition, the spectrum of the target color of the first color resistor 132 in the color state should be in the visible light range.

In the color film substrate of the present embodiment, since each first color resistor 132 of the first color resistor layer 13 (electrochromic color resistor layer) includes a plurality of sub-color resistors, the switching of the display panel between the wide viewing angle and the narrow viewing angle can be achieved by switching the sub-color resistors at different positions in the same sub-pixel region into the transparent state and the color state, and compared with the display panel provided with the dimming box, the thickness of the display panel is greatly reduced, which is more beneficial to the thinning of the display panel (the thickness of the electrochromic color stack layer can be controlled to be several micrometers in general, and the thickness of the dimming box is more than 200 micrometers in general); meanwhile, the sub-pixel area in the dark state cannot penetrate through the first color resistor and the second color resistor at the same time even if a small amount of light leakage exists in the dark state area due to different frequency spectrums of the first color resistor and the second color resistor, so that the dark state brightness is extremely low, the contrast ratio is higher, the image quality is better, the layering sense is obvious, and therefore, the display panel adopting the color film substrate of the embodiment can realize common wide-narrow visual angle switching and high contrast ratio wide-narrow visual angle switching.

In this embodiment, the light shielding structure 11 may be a black matrix. The black matrix is disposed between the adjacent sub-pixel regions P to prevent light from being mixed.

In this embodiment, the second sub-color blocker 1324 is located between the first sub-color blocker 1322 and the third sub-color blocker 1326. That is, the first sub-color resist 1322 and the third sub-color resist 1326 are adjacent to the light shielding structure 11, respectively, and the orthographic projections of the first sub-color resist 1322 and the third sub-color resist 1326 to the sub-pixel region P fall into the sub-pixel region P. Specifically, the area of the second sub-color resist 1324 is larger than the areas of the first sub-color resist 1322 and the third sub-color resist 1326. More specifically, the area ratio of the first sub-color resist 1322, the second sub-color resist 1324, and the third group of color resists 1326 is preferably 1:2:1, but is not limited thereto.

In this embodiment, the first color resist layer 13 further includes a plurality of first transparent electrodes 133 and at least one second transparent electrode 134, and the plurality of first color resists 132 are disposed in one-to-one correspondence with the plurality of first transparent electrodes 133, the first color resists 132 are switched between a transparent state and a color state according to a voltage difference between the first transparent electrodes 133 and the second transparent electrodes 134, the first transparent electrodes 133 include a first sub-electrode 1332, a second sub-electrode 1334 and a third sub-electrode 1336 that are disposed in mutually insulated relation, and the first sub-color resists 1322, the second sub-color resists 1324 and the third sub-color resists 1326 are disposed in one-to-one correspondence with the first sub-electrode 1332, the second sub-electrode 1334 and the third sub-electrode 1336, respectively. Specifically, the first color resist 132 is located between the first transparent electrode 133 and the second transparent electrode 134.

Referring to fig. 2, in the present embodiment, the first sub-electrodes 1332 of the first transparent electrodes corresponding to all the sub-pixel regions P are electrically connected to each other, the second sub-electrodes 1334 of the first transparent electrodes corresponding to all the sub-pixel regions P are electrically connected to each other, and the third sub-electrodes 1336 of the first transparent electrodes corresponding to all the sub-pixel regions P are electrically connected to each other. Thus, the number of lines connecting the first transparent electrode with the circuit of the display panel can be reduced, thereby simplifying the circuit and reducing the size of the frame of the display panel.

Specifically, the first sub-color resistors 1322, the second sub-color resistors 1324, and the third sub-color resistors 1326 are arranged along the first direction, and in the second direction perpendicular to the first direction, the plurality of first sub-color resistors 1322 are arranged in a row, the plurality of second sub-color resistors 1324 are arranged in a row, and the plurality of third sub-color resistors 1326 are arranged in a row. Specifically, the first direction may be an X direction (i.e. an extending direction of the scan line), which is generally a width direction of the display panel, and the second direction may be a Y direction (i.e. an extending direction of the data line), which is generally a height direction of the display panel. More specifically, the first sub-color resistors 1322 in the same row are electrically connected to each other, the second sub-color resistors 1324 in the same row are electrically connected to each other, and the third sub-color resistors 1326 in the same row are electrically connected to each other. More specifically, a first one of the first sub-electrodes 1332 corresponding to one row of the first sub-color resistors 1322 is connected to the first connecting wire 1362, and the first sub-electrodes 1332 corresponding to the remaining first sub-color resistors 1322 are connected to the first sub-electrodes 1332 adjacent thereto; a first one of the second sub-electrodes 1334 corresponding to the second sub-color resistors 1324 in one row is connected to the second connecting wire 1364, and the second sub-electrodes 1334 corresponding to the remaining second sub-color resistors 1324 are connected to the second sub-electrodes 1334 adjacent thereto; a first one of the third sub-electrodes 1336 corresponding to the third sub-color resistors 1326 in one column is connected to the third connecting wire 1366, and the third sub-electrodes 1336 corresponding to the remaining third sub-color resistors 1326 are connected to the third sub-electrodes 1336 adjacent thereto; all the first connection wires 1362 are connected to each other, all the second connection wires 1364 are connected to each other, all the third connection wires 1366 are connected to each other, and the first connection wires 1362, the second connection wires 1364, and the third connection wires 1366 are connected to a control chip of the display panel, respectively.

In this embodiment, the number of the second transparent electrodes 134 is plural, and one second transparent electrode 134 corresponds to at least one first color resistor 132. Specifically, the second transparent electrode 134 may be generally grounded.

Specifically, the second transparent electrode 134 is independently turned on or off by the switching element 138. Specifically, the switching element 138 may be a thin film transistor (TFT, thin Film Transistor). The switching element 138 has a control terminal connected to the scanning line, a source connected to the data line, and a drain connected to the second transparent electrode 134. By controlling the opening and closing of the switching element 138, the second transparent electrode 134 connected thereto can be connected or disconnected. It is understood that the switching element 138 may be omitted, and the voltage may be applied to each of the second transparent electrodes 134 individually.

In this embodiment, the color film substrate further includes a first substrate 15 and a second color resist layer 17, and the first color resist layer 13 and the second color resist layer 17 are respectively located at two sides of the first substrate 15. The second color resist layer 17 includes a plurality of second color resists 172. The first color resistors 132 and the second color resistors 172 are disposed in one-to-one correspondence, and the spectrum of the target color of the first color resistor 132 in the color state is different from the spectrum of the color of the corresponding second color resistor 172. The difference in spectrum herein means that the spectrum ranges do not overlap, for example, the blue spectrum is 420nm to 470nm, the green spectrum is 500nm to 570nm, the red spectrum is 630nm to 780nm, and the spectrum ranges of blue, green, and red do not overlap each other. In addition, the spectrum of the target color of the first color resistor 132 in the color state should be in the visible light range.

Specifically, the sub-pixel region P includes a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region, and the first color resistor 132 includes a red electrochromic resistor, a green electrochromic resistor, and a blue electrochromic resistor, the green electrochromic resistor is disposed corresponding to the red sub-pixel region, the blue electrochromic resistor is disposed corresponding to the green sub-pixel region, and the red electrochromic resistor is disposed corresponding to the blue sub-pixel region. It will be appreciated that the blue electrochromic barrier may also be disposed in correspondence with the red subpixel area, the red electrochromic barrier may also be disposed in correspondence with the green subpixel area, and the green electrochromic barrier may also be disposed in correspondence with the blue subpixel area. Of course, in other embodiments, electrochromic resistors of other colors may be disposed corresponding to each sub-pixel region, for example, yellow, purple, etc., so long as the spectrum of the color of the sub-pixel region is different from the spectrum of the color of the corresponding electrochromic resistor in the color state.

Specifically, the second color resistor 172 includes a red color resistor, a green color resistor, and a blue color resistor, which are respectively disposed corresponding to the red sub-pixel region, the green sub-pixel region, and the blue sub-pixel region.

When the display panel with the color film substrate of the present embodiment is displayed in the normal wide viewing angle mode, please refer to fig. 1 and 3, the first transparent electrode 133 is not powered, the second transparent electrode 134 is grounded (or each switch element 138 is turned off, and the second transparent electrode 134 is not powered), so that there is no pressure difference between the first transparent electrode 133 and the second transparent electrode 134 (here, the pressure difference is not an absolute 0 pressure difference, but may be smaller, as long as the pressure difference is insufficient to switch the first color resistor 132 into the color state), and at this time, the whole first color resistor 132 is in the transparent state, and the left and right large viewing angles are not peeped. When the display panel with the color film substrate of the present embodiment is displayed in the normal bidirectional narrow viewing angle mode, referring to fig. 1 and 4, the first sub-electrode 1332 and the third sub-electrode 1336 of the first transparent electrode 133 are powered (for example, the driving voltage 2V is applied), the second sub-electrode 1334 is not powered, the second transparent electrode 134 is grounded (or each switching element 138 is turned off, the second transparent electrode 134 is not powered), so that a pressure difference exists between the first sub-electrode 1332, the third sub-electrode 1336 and the second transparent electrode 134, and no pressure difference exists between the second sub-electrode 1334 and the second transparent electrode 134, at this time, the first sub-color resistance 1322 and the third sub-color resistance 1326 are switched to the color state, the second sub-color resistance 1324 is in the transparent state, and the left-right large viewing angle peep-proof is realized; specifically, for the red sub-pixel region, the second color resistor 172 allows red light to pass through, the first sub-color resistor 1322 and the third sub-color resistor 1326 of the red sub-pixel region only allow green light to pass through, and therefore, the areas corresponding to the first sub-color resistor 1322 and the third sub-color resistor 1326 are shown as dark, no visible light passes through, the second sub-color resistor 1324 is transparent, that is, the area corresponding to the second sub-color resistor 1324 allows red light to pass through, that is, only the area corresponding to the second sub-color resistor 1324 in the middle of the red sub-pixel region is light-permeable, and correspondingly, the area corresponding to the second sub-color resistor 1324 in the middle of the green sub-pixel region and the blue sub-pixel region is light-permeable, so that the left and right large viewing angle peep prevention can be realized. When the display panel with the color film substrate of the present embodiment is displayed in the normal unidirectional narrow viewing angle mode, please refer to fig. 1 and 5, the first sub-electrode 1332 of the first transparent electrode 133 is powered (e.g. the driving voltage is applied by 2V), the second sub-electrode 1334 and the third sub-electrode 1336 are not powered, the second transparent electrode 134 is grounded (or each switching element 138 is turned off, the second transparent electrode 134 is not powered), so that there is a pressure difference between the first sub-electrode 1332 and the second transparent electrode 134, and no pressure difference exists between the second sub-electrode 1334, the third sub-electrode 1336 and the second transparent electrode 134, at this time, the first sub-color resistance 1322 is switched to the color state, and the second sub-color resistance 1324 and the third sub-color resistance 1326 are in the transparent state, so as to realize the left large viewing angle peep-proof; similarly, when the third sub-electrode 1336 of the first transparent electrode 133 is powered, and the first sub-electrode 1332 and the second sub-electrode 1334 are not powered, the right large viewing angle peep prevention can be achieved.

When the display panel with the color film substrate of the present embodiment is in the high-contrast wide-viewing angle mode, referring to fig. 1 and 6, the first transparent electrode 133 is not powered (e.g., 0V) and the second transparent electrode 134 corresponding to the bright state region is not powered (e.g., there is no pressure difference between the first transparent electrode 133 and the second transparent electrode 134 corresponding to the bright state region), the corresponding first color resistor 132 is in a transparent state, and the wide viewing angles on the left and right sides are not peeped; meanwhile, the second transparent electrode 134 corresponding to the dark state region is powered (for example, a driving voltage of 2V is applied), a voltage difference exists between the first transparent electrode 133 and the second transparent electrode 134 corresponding to the dark state region, and the corresponding first color resistor 132 is in a color state. When the display panel with the color film substrate of the present embodiment is in the high-contrast bi-directional narrow viewing angle mode, referring to fig. 1 and 7, the first sub-electrode 1332 and the third sub-electrode 1336 of the first transparent electrode 133 are not powered (e.g., the voltage is 0V), the second sub-electrode 1334 is powered (e.g., the driving voltage is 2V) and the second transparent electrode 134 corresponding to the bright state region is powered (e.g., the driving voltage is 2V) and the second transparent electrode 134 corresponding to the dark state region is not powered, at this time, there is a pressure difference between the first sub-electrode 1332, the third sub-electrode 1336 and the second transparent electrode 134 corresponding to the bright state region, there is no pressure difference between the second sub-electrode 1334 corresponding to the bright state region and the second transparent electrode 134, there is no pressure difference between the first sub-electrode 1332 corresponding to the dark state region, the third sub-electrode 1336 corresponding to the dark state region and the second transparent electrode 134, there is a pressure difference between the second sub-electrode 1334 corresponding to the dark state region and the second transparent electrode 134, the first sub-color resistor 1322 and the third sub-color resistor 1326 corresponding to the bright state region are switched to the color state, the second sub-color resistor 1324 is the transparent state, the left and right large viewing angle peeping prevention is realized, the first sub-color resistor 1322 and the third sub-color resistor 1326 corresponding to the dark state region are transparent states, and the second sub-color resistor 1324 corresponding to the dark state region is switched to the color state. When the display panel with the color film substrate of the present embodiment is in the high-contrast unidirectional narrow viewing angle mode for display, referring to fig. 1 and 8, the first sub-electrode 1332 corresponding to the first transparent electrode 133 is not powered (e.g., the driving voltage 2V is applied), the second sub-electrode 1334 corresponding to the bright state region is powered (e.g., the driving voltage 2V is applied), the second transparent electrode 134 corresponding to the dark state region is not powered (e.g., 0V), at this time, a pressure difference exists between the first sub-electrode 1332 corresponding to the bright state region and the second transparent electrode 134, no pressure difference exists between the second sub-electrode 1334 corresponding to the bright state region, the third sub-electrode 1336 corresponding to the bright state region and the second transparent electrode 134, the first sub-color resistor 1322 corresponding to the bright state region is switched to the color state, the second sub-color resistor 1324 corresponding to the third sub-color resistor 1326 corresponding to the bright state is in the transparent state, and the left large viewing angle anti-peeping is realized, and no pressure difference exists between the first sub-electrode 1332 corresponding to the dark state region and the second transparent electrode 134, and no pressure difference exists between the second sub-electrode 1334 corresponding to the second sub-electrode 134 and no pressure difference exists between the second sub-electrode 134. The bright state region corresponds to the first sub-color block 1322 being in a transparent state, and the dark state region corresponds to the second sub-color block 1324 and the third sub-color block 1326 being in a color state. Similarly, the left large visual angle peep prevention can be realized in a similar manner. In the high-contrast wide-view-angle and narrow-view-angle display, the light in the dark state area cannot penetrate (or little light leakage is caused at two sides of the sub-pixel area), and the dark state brightness is lower, so that the contrast is higher, the image quality is better, the layering sense is obvious, and the image quality of a product is higher.

When the display panel with the color film substrate of the present embodiment is in the Local Dimming mode, please refer to fig. 1 and 9, the first transparent electrode 133 is not powered, the switching elements 138 are turned off, the plurality of second transparent electrodes 134 are turned off, and a portion of the second transparent electrodes are powered, so that the first color resistor 132 of a portion of the area is switched to the color state, and the light in the portion of the area is not transmitted due to the different frequency spectrums of the first color resistor 132 and the second color resistor 172, and is changed to the dark state, and the dark state is extremely low, thereby realizing the Local Dimming (Local Dimming) mode, and having the high contrast display effect. When the display panel with the color film substrate of the present embodiment is in the solid-color display mode, please refer to fig. 1 and 10, the first transparent electrode 133 corresponding to the first color resistor 132 of the solid-color to be displayed is powered up, the first transparent electrodes 133 corresponding to the first color resistors 132 of the other colors are not powered up, the second transparent electrode 134 is grounded, and the second color resistor 172 of the solid-color to be displayed is transparent, and the second color resistor 172 of the other colors is opaque, thereby realizing solid-color display. Wherein, making the second color resistance 172 transparent or opaque can be achieved by controlling the state of the liquid crystal in different areas of the display panel. At this time, in addition to the solid color displayed in the area corresponding to the second color resistor 172, the solid color is displayed in the area corresponding to the first color resistor 132, so that the solid color display area is increased, and the color is more saturated and gorgeous. When the display panel with the color film substrate of the present embodiment is in the solid color display mode, referring to fig. 1 and 11, the first transparent electrode 133 corresponding to the first color resistor 132 corresponding to the solid color to be displayed can be powered on, the second color resistor 172 corresponding to the solid color to be displayed is enabled to transmit light, the first transparent electrode 133 corresponding to the first color resistor 132 and the second color resistor 172 are both areas with other colors, and the second color resistor 172 corresponding to the powered first transparent electrode 133 is enabled to not transmit light, so that solid color display can be realized. When the display panel is used for a long time and faults such as a thin film transistor short line and the like on the array substrate cannot normally display color, the first color resistor 132 can be used for normally displaying, repair is avoided, and therefore the service life of the display panel can be prolonged. Specifically, a voltage difference may be applied between the first transparent electrode 133 and the second transparent electrode 134 corresponding to the area incapable of being displayed normally, so that the corresponding first color resistor 132 is switched to the color state, and the corresponding second color resistor 172 is made opaque (i.e. adjusted to the dark state), and at this time, the first color resistor 132 may be used to replace the second color resistor 172 for displaying.

In this embodiment, the first color resist layer 13 may be a zinc-type electrochromic device (Zn-SVO, zinc-sodium-vanadium oxide). Referring to fig. 12 and 13, the zinc-type electrochromic device includes a first vanadium oxide (SVO) 61, a Second Vanadium Oxide (SVO) 62, and a zinc (Zn) 63 disposed between the first vanadium oxide 61 and the second vanadium oxide 62, and a gel electrolyte 64 is further disposed between the first vanadium oxide 61 and the second vanadium oxide 62. The first vanadium oxide 61 may cover the surface of the first transparent electrode 133, and the second vanadium oxide 62 may cover the surface of the second transparent electrode 134. The zinc type electrochromic device can realize reversible switching between various colors (red, green, blue), realize reversible color switching through zn2+ embedding (self-coloring/discharging) and extracting (fading/charging), and has high transparency (more than 90%), while maintaining high optical transparency, self-color development behavior and energy recovery function. The self-color development can be realized through the built-in battery power supply without external energy input, so that the electric energy consumed in the color fading process can be recovered. By applying an electrical signal to the first transparent electrode 133 and the second transparent electrode 134, a voltage difference is formed therebetween, so that the zinc-type electrochromic device is switched to a color state. The pressure difference between the first transparent electrode 133 and the second transparent electrode 134 may be controlled such that the zinc-type electrochromic device assumes a preset color.

In this embodiment, the color filter substrate further includes a planarization layer 19, where the planarization layer 19 is disposed on a side of the second color resist layer 17 away from the first substrate 15.

In other embodiments, each of the first color resists 132 may further be provided with a plurality of sub-color resists, for example, but not limited to, a first sub-color resist, a second sub-color resist, a third sub-color resist, a fourth sub-color resist, and a fifth sub-color resist. The first sub-color resistor and the fifth sub-color resistor are respectively adjacent to the shading structure, and orthographic projections of the first sub-color resistor and the fifth sub-color resistor to the sub-pixel region fall into the sub-pixel region. By applying voltages to the first sub-color resistor, the second sub-color resistor, the fourth sub-color resistor and the fifth sub-color resistor, different peep-proof angles can be adjusted in a common narrow view angle mode or under a high-contrast narrow view angle.

Second embodiment

Referring to fig. 14, the difference between the present embodiment and the first embodiment is that in the present embodiment, only one second transparent electrode 134, i.e. one second transparent electrode 134 covers the whole color film substrate. In this embodiment, since the first sub-electrodes 1332 of the first transparent electrodes corresponding to all the sub-pixel regions P are electrically connected to each other, the second sub-electrodes 1334 of the first transparent electrodes corresponding to all the sub-pixel regions P are electrically connected to each other, the third sub-electrodes 1336 of the first transparent electrodes corresponding to all the sub-pixel regions P are electrically connected to each other, and the second transparent electrodes 134 are integral, the local dimming function cannot be realized, the high-contrast wide-narrow viewing angle display cannot be realized, and the normal wide-narrow viewing angle display can be realized. Other structures of the color film substrate in this embodiment are substantially the same as those of the color film substrate in the first embodiment, and will not be described herein.

Third embodiment

Referring to fig. 15 and 16, the difference between the present embodiment and the second embodiment is that in the present embodiment, each first sub-electrode 1332, each second sub-electrode 1334, and each third sub-electrode 1336 independently control the switching state. In the present embodiment, since all the sub-electrodes are individually controlled to be individually turned on or off, respectively, the local dimming function and the high-contrast wide-narrow viewing angle display can be realized even if the second transparent electrode 134 is an integral body.

Specifically, each first sub-electrode 1332, each second sub-electrode 1334, and each third sub-electrode 1336 are respectively connected to a control chip of the display panel, and the control chip outputs voltage signals to the first sub-electrode 1332, the second sub-electrode 1334, and the third sub-electrode 1336, respectively.

The other structures of the color film substrate in this embodiment are substantially the same as those of the color film substrate in the second embodiment, and will not be described herein.

In this embodiment, a plurality of second transparent electrodes 134 may be disposed, and the plurality of second transparent electrodes 134 are disposed in one-to-one correspondence with the plurality of first color resistors 132, and the plurality of second transparent electrodes 134 may be connected or disconnected by the switching element 138, or the switching element 138 may be omitted, and a voltage may be applied to each of the second transparent electrodes 134 individually. And are not limited herein.

Fourth embodiment

Referring to fig. 17, the difference between the present embodiment and the second embodiment is that in the present embodiment, the first color resist layer 13 and the second color resist layer 17 are sequentially stacked on the same side of the first substrate 15. Specifically, in the present embodiment, the second color resist layer 17 is disposed on a side of the first substrate 15, the first color resist layer 13 is disposed on a side of the second color resist layer 17 away from the first substrate 15, the first transparent electrode 133 is disposed on a side of the first color resist layer 13 adjacent to the second color resist layer 17, and the second transparent electrode 134 is disposed on a side of the first color resist layer 13 away from the second color resist layer 17. The planarization layer 19 of the present embodiment is disposed on a side of the first color resist layer 13 away from the second color resist layer 17. The other structures of the color film substrate in this embodiment are substantially the same as those of the color film substrate in the second embodiment, and will not be described herein. It is understood that the connection manner of the first sub-electrode 1332, the second sub-electrode 1334 and the third sub-electrode 1336 and the control chip in the present embodiment may be the same as that of the third embodiment. It is to be understood that the second transparent electrode 134 of the present embodiment may also have the same structure as the second transparent electrode 134 of the first embodiment, and will not be described herein.

Fifth embodiment

Referring to fig. 18, the difference between the present embodiment and the first embodiment is that in the present embodiment, the first color resistor 132 includes only the first sub-color resistor 1322 and the second sub-color resistor 1324, the first transparent electrode 133 includes only the first sub-electrode 1332 and the second sub-electrode 1334, and the first sub-color resistor 1322 and the second sub-color resistor 1324 are respectively disposed corresponding to the first sub-electrode 1332 and the second sub-electrode 1334. Specifically, the first sub-color resist 1322 is located on one side of the second sub-color resist 1324, for example, the first sub-color resist 1322 is located on the left side of the second sub-color resist 1324 in the present embodiment. That is, both sides of the first sub-color resist 1322 and the second sub-color resist 1324 are adjacent to the light shielding structure 11, and the orthographic projection of the first sub-color resist 1322 onto the sub-pixel region P falls into the sub-pixel region P. When a pressure difference is applied to the first sub-color resist 1322, the first sub-color resist 1322 presents a color state, and when a pressure difference is not applied to the second sub-color resist (1324), the second sub-color resist 1324 presents a transparent state, so that left unidirectional narrow viewing angle display is realized.

Specifically, the second sub-color resist 1324 has an area larger than that of the first sub-color resist 1322. More specifically, the area ratio of the first sub-color resist 1322, the second sub-color resist 1324, and the third group of color resists 1326 is preferably 1:3, but is not limited thereto.

The color film substrate is suitable for a display panel with only a unidirectional narrow viewing angle requirement, is not suitable for a display panel with a bidirectional narrow viewing angle requirement, and can realize local dimming, common wide viewing angle display, common unidirectional narrow viewing angle display, high-contrast unidirectional wide viewing angle display and high-contrast unidirectional narrow viewing angle display. Other structures of the color film substrate in this embodiment are substantially the same as those of the color film substrate in the first embodiment, and will not be described herein.

It can be appreciated that, in the color film substrates of the second embodiment to the fourth embodiment, the first color resistor 132 in the present embodiment may also include only the first sub-color resistor 1322 and the second sub-color resistor 1324, which are not described herein.

Sixth embodiment

The present invention further provides a display panel, referring to fig. 19, the display panel of the sixth embodiment includes a color film substrate 10, an array substrate 30 opposite to the color film substrate 10, and a liquid crystal layer 50 disposed between the color film substrate 10 and the array substrate 30. The color film substrate 10 may be any one of the color film substrates described in the first to fifth embodiments.

In this embodiment, the array substrate 30 includes a second substrate 32, a common electrode 34, a pixel electrode 36, and a thin film transistor array (not shown), and the common electrode 34 and the pixel electrode 36 are arranged at an insulating interval. Specifically, the common electrode 34 is stacked on the second substrate 32, and the pixel electrode 36 is stacked above the common electrode 34. More specifically, the array substrate 30 further includes a first insulating layer 37, and the first insulating layer 37 is disposed between the common electrode 34 and the pixel electrode 36. Specifically, each of the sub-pixel regions P is provided with one pixel electrode 36, respectively. It will be appreciated that the positions of the common electrode 34 and the pixel electrode 36 may also be interchanged, i.e. the pixel electrode 36 is provided on the second substrate 32, the first insulating layer 37 is provided on the pixel electrode 36, and the common electrode 34 is provided on the first insulating layer 37. It will be appreciated that the common electrode 34 and the pixel electrode 36 may also be provided in the same layer. It is understood that the common electrode 34 may also be disposed on the color film substrate 10.

In this embodiment, the display panel further includes a first polarizing plate 71, a second polarizing plate 73, and a backlight module 75. The first polarizing plate 71 is disposed on a side of the color film substrate 10 away from the liquid crystal layer 50, and the second polarizing plate 73 is disposed on a side of the array substrate 30 away from the liquid crystal layer 50. The backlight module 75 is disposed on a side of the second polarizer 73 away from the array substrate 30. The backlight module 75 is used for providing backlight source for the display panel. Of course, if the display panel adopts a self-luminous display, the backlight module can be omitted. The backlight module 75 may be a side-in type backlight module or a direct type backlight module.

Seventh embodiment

The invention also provides a driving method of the display panel, and the display panel comprises a color film substrate 10, an array substrate 30 opposite to the color film substrate 10 and a liquid crystal layer 50 arranged between the color film substrate 10 and the array substrate 30. The color film substrate 10 may be any one of the color film substrates of the first embodiment or the third embodiment. The display panel having the color film substrate includes a wide viewing angle mode and a narrow viewing angle mode, and the driving method of the display panel of the seventh embodiment includes:

applying a display data voltage signal to the array substrate 30;

no pressure difference is applied between the first transparent electrode 133 and the second transparent electrode 134 of the color film substrate 10, so that the first color resistor 132 is in a transparent state, and ordinary wide-viewing angle display is realized. Specifically, at this time, there may be no pressure difference between the first transparent electrode 133 and the second transparent electrode 134 by not powering the first transparent electrode 133 and grounding the second transparent electrode 134.

A pressure difference is applied between the first sub-electrode 1332 and the second transparent electrode 134 and/or between the third sub-electrode 1336 and the second transparent electrode 134 of the color film substrate 10, so that the first sub-color resistor 1322 and/or the third sub-color resistor 1326 are in a color state, and no pressure difference is applied between the second sub-electrode 1334 and the second transparent electrode 134, so that the second sub-color resistor 1324 is in a transparent state, and ordinary narrow viewing angle display is realized. Specifically, when a pressure difference is applied between the first sub-electrode 1332 and the second transparent electrode 134, and between the third sub-electrode 1336 and the second transparent electrode 134, both the first sub-color resistor 1322 and the third sub-color resistor 1326 are in a color state, so that a common bidirectional narrow viewing angle display is realized; when a voltage difference is applied between the first sub-electrode 1332 and the second transparent electrode 134 or between the third sub-electrode 1326 and the second transparent electrode 134, only the first sub-color resistor 1322 or the third sub-color resistor 1326 is in a color state, and the other one of the first sub-color resistor 1322 and the third sub-color resistor 1326 and the second sub-color resistor 1324 are in a transparent state, so that a common unidirectional narrow viewing angle display is realized. Specifically, a voltage difference may be generated between the first transparent electrode 133 and the second transparent electrode 134 by powering the first transparent electrode 133 and grounding the second transparent electrode 134.

The driving method of the display panel of the present embodiment further includes:

the first color resistor 132 corresponding to the bright state region presents a transparent state without applying a pressure difference between the first transparent electrode 133 and the second transparent electrode 134 of the color film substrate 10 corresponding to the bright state region, and the first color resistor 132 corresponding to the dark state region presents a color state by applying a pressure difference between the first transparent electrode 133 and the second transparent electrode 134 of the color film substrate 10 corresponding to the dark state region, so that high-contrast wide-viewing angle display is realized. Specifically, by not powering the first transparent electrode 133, not powering the second transparent electrode 134 corresponding to the bright state region, and powering the second transparent electrode 134 corresponding to the dark state region, there is no pressure difference between the first transparent electrode 133 and the second transparent electrode 134 corresponding to the bright state region, and there is a pressure difference between the first transparent electrode 133 and the second transparent electrode 134 corresponding to the dark state region.

A pressure difference is applied between the first sub-electrode 1332 and the second transparent electrode 134 of the color film substrate 10 corresponding to the bright state region and/or between the third sub-electrode 1336 and the second transparent electrode 134, and no pressure difference is applied between the second sub-electrode 1334 and the second transparent electrode 134 of the color film substrate 10 corresponding to the bright state region, so that the first sub-color resistor 1322 and/or the third sub-color resistor 1326 corresponding to the bright state region represent color states, and the second sub-color resistor 1324 corresponding to the bright state region represents transparent states; and a voltage difference is applied between the second sub-electrode 1334 corresponding to the dark state region and the second transparent electrode 134, so that the second sub-color resistor 1324 corresponding to the dark state region presents a color state, and high-contrast narrow-viewing angle display is realized. The narrow view display may include a bidirectional narrow view display and a unidirectional narrow view display, among others.

Specifically, during the high-contrast bidirectional narrow viewing angle mode display, the first sub-electrode 1332 and the third sub-electrode 1336 of the first transparent electrode 133 are not powered, the second sub-electrode 1334 is powered (for example, the driving voltage 2V is applied), the second transparent electrode 134 corresponding to the bright state region is not powered, at this time, the first sub-electrode 1332, the third sub-electrode 1336 and the second transparent electrode 134 corresponding to the bright state region are all powered by a pressure difference, no pressure difference exists between the second sub-electrode 1334 and the second transparent electrode 134 corresponding to the bright state region, no pressure difference exists between the first sub-electrode 1332, the third sub-electrode 1336 and the second transparent electrode 134 corresponding to the dark state region, the first sub-color resistor 1322 and the third sub-color resistor 1326 corresponding to the bright state region are switched to the color state, the second sub-color resistor 1324 is in the transparent state, and the first sub-color resistor 1326 corresponding to the dark state region is switched to the second sub-color resistor 1326 corresponding to the dark state, and the second sub-color resistor 1324 is switched to the dark state.

In the high contrast unidirectional narrow viewing angle mode display, the first sub-electrode 1332 of the first transparent electrode 133 is not energized (for example, a driving voltage of 2V is applied), the second sub-electrode 1334 and the third sub-electrode 1336 are energized (for example, a driving voltage of 2V is applied), the second transparent electrode 134 corresponding to the bright state region is energized (for example, a driving voltage of 0V is not energized) the second transparent electrode 134 corresponding to the dark state region, at this time, there is a pressure difference between the first sub-electrode 1332 and the second transparent electrode 134 corresponding to the bright state region, there is no pressure difference between the second sub-electrode 1334, the third sub-electrode 1336 and the second transparent electrode 134 corresponding to the bright state region, the first sub-color resistance 1322 and the third sub-color resistance 1326 corresponding to the bright state region are in a transparent state, there is no pressure difference between the first sub-electrode 1332 and the second transparent electrode 134 corresponding to the dark state region, and there is a pressure difference between the second sub-electrode 1334, the third sub-electrode 1336 and the second transparent electrode 134 corresponding to the dark state region. The bright state region corresponds to the first sub-color resistance 1322 and is transparent, and the second sub-color resistance 1324 and the third sub-color resistance 1326 corresponding to the dark state region are color states, so that the left large-view-angle peep prevention is realized.

and a pressure difference is applied between the first transparent electrode 133 and the second transparent electrode 134 of a part of the color film substrate 10, and no pressure difference is applied between the first transparent electrode 133 and the second transparent electrode 134 of the rest of the color film substrate 10, so that a part of the first color resistor 132 is in a color state, and the rest of the first color resistor 132 is in a transparent state, and a local dimming mode is realized. Specifically, this can be achieved by: each of the switching elements 138 is turned off without energizing the first transparent electrode 133, and the plurality of second transparent electrodes 134 are turned off to energize a portion of the second transparent electrodes; alternatively, this is achieved by: a portion of the first transparent electrode 133 is powered and the second transparent electrode 134 is grounded.

and applying a pressure difference between the first transparent electrode 133 and the second transparent electrode 134 corresponding to the first color resistor 132 with the color state being the first color, and not applying a pressure difference between the first transparent electrode 133 and the second transparent electrode 134 corresponding to the other first color resistors 132, so that the first color resistor 132 with the color state being the first color presents the color state, the other first color resistors 132 present the transparent state, and simultaneously, the first color sub-pixel area is transparent, the other sub-pixel areas are opaque, and the pure color display mode of the first color is realized. For example, in fig. 7, the first color is red, the first color resistor 132 with the color state of red is in the color state, the remaining first color resistors 132 are in the transparent state, the second color resistor 172 with red transmits light (i.e. the red sub-pixel area is in the bright state), the second color resistors 172 with the remaining colors do not transmit light (i.e. the sub-pixel areas with the remaining colors are in the dark state), thus red is displayed in the sub-pixel areas corresponding to the red sub-pixel area and the red first color resistor 132, and the remaining sub-display areas are in the dark state. Specifically, applying a pressure difference between the first transparent electrode 133 and the second transparent electrode 134 corresponding to the first color resistor 132 having the first color state may be achieved by: the first transparent electrode 133 corresponding to the first color resistor 132 having the first color state is powered, or the second transparent electrode 134 corresponding to the first color resistor 132 having the first color state is powered.

and applying a pressure difference between the first transparent electrode 133 and the second transparent electrode 134 corresponding to the sub-pixel areas except the first color, and not applying a pressure difference between the first transparent electrode 133 and the second transparent electrode 134 corresponding to the second color resistor 172 corresponding to the first color, so that the sub-pixel area corresponding to the first color resistor 132 with the color state of the first color is opaque, and the rest sub-pixel areas are transparent, thereby realizing a pure color display mode of the first color. For example, in fig. 8, the first color is red, the first color resistor 132 with red color is in color, the first color resistor 132 with blue color is in color, the first color resistor 132 with green color is in transparent state, the second color resistor 172 and the second color resistor 172 are transparent (i.e. red sub-pixel area and green sub-pixel area are in bright state), the second color resistor 172 with blue color is opaque (i.e. blue sub-pixel area is in dark state), thus red is displayed in the sub-pixel area corresponding to the red sub-pixel area and the first color resistor 132, and green light transmitted from the second color resistor 172 cannot pass through the first color resistor 132 with blue color, so the green sub-pixel area is in dark state. Specifically, applying a voltage difference between the first transparent electrode 133 and the second transparent electrode 134 corresponding to the sub-pixel region other than the first color may be achieved by: the first transparent electrode 133 corresponding to the sub-pixel region having the color state other than the first color is powered, or the second transparent electrode 134 corresponding to the sub-pixel region having the color state other than the first color is powered.

a voltage difference is applied between the first transparent electrode 133 and the second transparent electrode 134 corresponding to the area incapable of displaying normally, so that the corresponding first color resistor 132 is switched to a color state, and the corresponding second color resistor 172 is made opaque (i.e. adjusted to a dark state), and then the first color resistor 132 can be used for displaying instead of the second color resistor 172. Therefore, when the display panel is used for a long time and faults such as a thin film transistor short line on the array substrate cannot normally display color, the color can still be normally displayed through the first color resistor 132, repair is avoided, and accordingly the service life of the display panel is prolonged.

Eighth embodiment

The invention also provides a manufacturing method of the display panel, and fig. 20 (a) to 20 (b) are schematic views of part of structures in the manufacturing method of the display panel. The display panel comprises the color film substrate in the embodiment. The manufacturing method of the display panel of the eighth embodiment includes the following steps:

s11, referring to fig. 20 (a), a first substrate 15 is provided, and a second color resist layer 17 is disposed on one side of the first substrate 15. Specifically, the second color resist layer 17 includes a plurality of second color resists 172, and a light shielding structure 11 is disposed between adjacent second color resists 172, where the light shielding structure 11 separates a plurality of sub-pixel regions P of the color film substrate from each other.

S13, a first color resist layer 13 is formed on the other side of the first substrate 15. Specifically, step S13 includes:

s133, referring to fig. 20 (b), a second transparent electrode 134 is formed on the other side of the first substrate 15. Specifically, the second transparent electrode 134 is plural, and the plural second transparent electrodes 134 may be connected or disconnected by the switching element 138. In other embodiments, the second transparent electrode 134 may be a full-face electrode.

In S135, referring to fig. 1, a plurality of first color resistors 132 are formed on a side of the second transparent electrode 134 away from the first substrate 15, and a first transparent electrode 133 is formed on a side of the first color resistor 132 away from the first substrate 15. The first color resist 132 includes a first sub-color resist 1322, a second sub-color resist 1324, and a third sub-color resist 1326, the first sub-color resist 1322, the second sub-color resist 1324, and the third sub-color resist 1326 being configured to be capable of switching between a transparent state and a color state, respectively, independently. The first color resistors 132 are uniformly and correspondingly arranged with the first transparent electrodes 133 and the second transparent electrodes 134, the first transparent electrodes 133 comprise a first sub-electrode 1332, a second sub-electrode 1334 and a third sub-electrode 1336 which are mutually insulated, and the first sub-color resistors 1322, the second sub-color resistors 1324 and the third sub-color resistors 1326 are correspondingly arranged with the first sub-electrode 1332, the second sub-electrode 1334 and the third sub-electrode 1336 one by one. Thus, the color film substrate 10 is manufactured, and the color film substrate 10 can be the color film substrate in the first embodiment, the second embodiment, the third embodiment or the fifth embodiment.

S17, referring to fig. 19, an array substrate 30 is formed, the color film substrate 10 and the array substrate 30 are opposite, and a liquid crystal is injected between the color film substrate 10 and the array substrate 30 to form a box, then a first polarizing plate 71 and a second polarizing plate 73 are respectively disposed on a side of the color film substrate 10 away from the liquid crystal and a side of the array substrate 30 away from the liquid crystal, and a backlight module 75 is disposed on a side of the second polarizing plate 73 away from the array substrate 10. Thus, the display panel is manufactured.

It will be appreciated that in another embodiment, step S13 may be: the first color resist layer 13 is formed on a side of the second color resist layer 17 remote from the first substrate 15. The color film substrate 10 thus formed is the color film substrate in the fourth embodiment.

The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

1. The color film substrate is provided with a shading structure (11) and a plurality of sub-pixel areas (P), the shading structure (11) is used for mutually spacing the plurality of sub-pixel areas (P), and the color film substrate is characterized by comprising a first color resistance layer (13) and a second color resistance layer (17), the first color resistance layer (13) is an electrochromic color resistance layer, the first color resistance layer (13) comprises a plurality of first color resistances (132), the first color resistances (132) are in one-to-one correspondence with the sub-pixel areas (P), and the first color resistances (132) at least comprise a first sub-color resistance (1322), a second sub-color resistance (1324) and a third sub-color resistance (1326) which are sequentially arranged; the second color resistance layer (17) comprises a plurality of second color resistances (172), the first color resistances (132) and the second color resistances (172) are arranged in a one-to-one correspondence manner, and the frequency spectrums of target colors of the first sub color resistances (1322), the second sub color resistances (1324) and the third sub color resistances (1326) in the color states are different from the frequency spectrums of the colors of the corresponding second color resistances (172).

2. The color film substrate according to claim 1, wherein the first color resist layer (13) further comprises a plurality of first transparent electrodes (133) and at least one second transparent electrode (134), the first color resist (132) is disposed between the first transparent electrodes (133) and the second transparent electrodes (134), and the plurality of first color resists (132) are disposed in one-to-one correspondence with the plurality of first transparent electrodes (133), the first color resist (132) being switched between the transparent state and the color state according to a voltage difference between the first transparent electrodes (133) and the second transparent electrodes (134); the first transparent electrode (133) at least comprises a first sub-electrode (1332), a second sub-electrode (1334) and a third sub-electrode (1336) which are arranged in an insulating manner, and the first sub-color resistor (1322), the second sub-color resistor (1324) and the third sub-color resistor (1326) are arranged in one-to-one correspondence with the first sub-electrode (1332), the second sub-electrode (1334) and the third sub-electrode (1336).

3. The color film substrate according to claim 2, comprising a plurality of second transparent electrodes (134), wherein the second transparent electrodes (134) are arranged in one-to-one correspondence with the first color resistors (132); the first sub-electrodes (1332) of the first transparent electrodes corresponding to all the sub-pixel regions (P) are electrically connected with each other, the second sub-electrodes (1334) of the first transparent electrodes corresponding to all the sub-pixel regions (P) are electrically connected with each other, and the third sub-electrodes (1336) of the first transparent electrodes corresponding to all the sub-pixel regions (P) are electrically connected with each other, or each sub-electrode is respectively independently connected or disconnected.

4. The color film substrate according to claim 2, comprising one of the second transparent electrodes (134), one of the second transparent electrodes (134) covering the entire color film substrate; each sub-electrode is respectively and independently connected or disconnected.

5. The color film substrate according to claim 2, comprising one of the second transparent electrodes (134), one of the second transparent electrodes (134) covering the entire color film substrate; the first sub-electrodes (1332) of the first transparent electrodes corresponding to all the sub-pixel regions (P) are electrically connected with each other, the second sub-electrodes (1334) of the first transparent electrodes corresponding to all the sub-pixel regions (P) are electrically connected with each other, and the third sub-electrodes (1336) of the first transparent electrodes corresponding to all the sub-pixel regions (P) are electrically connected with each other.

6. The color film substrate of claim 1, wherein the sub-pixel region (P) comprises a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region, the first color resistor (132) comprises a red electrochromic resistor, a green electrochromic resistor, and a blue electrochromic resistor, and the second color resistor (172) comprises a red color resistor corresponding to the red sub-pixel region, a green color resistor corresponding to the green sub-pixel region, and a blue color resistor corresponding to the blue sub-pixel region; the green electrochromic resistor is arranged corresponding to the red sub-pixel region, the blue electrochromic resistor is arranged corresponding to the green sub-pixel region, and the red electrochromic resistor is arranged corresponding to the blue sub-pixel region.

7. A display panel, characterized by comprising a color film substrate (10), an array substrate (30) opposite to the color film substrate (10), and a liquid crystal layer (50) arranged between the color film substrate (10) and the array substrate (30), wherein the color film substrate (10) is the color film substrate according to any one of claims 1 to 6.

8. A driving method of a display panel, wherein the display panel includes a color film substrate (10), an array substrate (30) opposite to the color film substrate (10), and a liquid crystal layer (50) disposed between the color film substrate (10) and the array substrate (30), the color film substrate (10) is the color film substrate as claimed in any one of claims 3 to 4, the driving method of the display panel includes:

applying a display data voltage signal to the array substrate (30);

the first color resistor (132) is in a transparent state without applying pressure difference between the first transparent electrode (133) and the second transparent electrode (134), so that common wide-viewing angle display is realized;

and applying a pressure difference between the first sub-electrode (1332) and the second transparent electrode (134) and/or between the third sub-electrode (1336) and the second transparent electrode (134) to enable the first sub-color resistor (1322) and/or the third sub-color resistor (1326) to be in a color state, and not applying a pressure difference between the second sub-electrode (1334) and the second transparent electrode (134) to enable the second sub-color resistor (1324) to be in a transparent state, so that common narrow-view display is realized.

9. The method for driving a color filter substrate according to claim 8, further comprising:

applying no pressure difference between the first transparent electrode (133) and the second transparent electrode (134) corresponding to the bright state region, so that the first color resistor (132) corresponding to the bright state region presents a transparent state, and applying a pressure difference between the first transparent electrode (133) and the second transparent electrode (134) corresponding to the dark state region, so that the first color resistor (132) corresponding to the dark state region presents a color state, thereby realizing high-contrast wide-view angle display;

and applying a pressure difference between the first sub-electrode (1332) corresponding to the bright state region and the second transparent electrode (134), and/or between the third sub-electrode (1336) and the second transparent electrode (134), and not applying a pressure difference between the second sub-electrode (1334) corresponding to the bright state region and the second transparent electrode (134), so that the first sub-color resistor (1322) and/or the third sub-color resistor (1326) corresponding to the bright state region are in a color state, the second sub-color resistor (1324) corresponding to the bright state region is in a transparent state, and applying a pressure difference between the second sub-electrode (1334) corresponding to the dark state region and the second transparent electrode (134), and the second sub-color resistor (1324) corresponding to the dark state region is in a color state, thereby realizing high-contrast narrow viewing angle display.

10. The method for driving a display panel according to claim 8, further comprising:

applying a pressure difference between a part of the first transparent electrode (133) and the second transparent electrode (134), and not applying a pressure difference between the rest of the first transparent electrode (133) and the second transparent electrode (134), so that a part of the first color resistor (132) is in a color state, and the rest of the first color resistor (132) is in a transparent state, thereby realizing a local dimming mode; or alternatively, the process may be performed,

applying a pressure difference between the first transparent electrode (133) and the second transparent electrode (134) corresponding to the first color resistor (132) with the color state of a first color, and not applying a pressure difference between the first transparent electrode (133) and the second transparent electrode (134) corresponding to the rest of the first color resistor (132), so that the first color resistor (132) with the color state of the first color is in the color state, the rest of the first color resistor (132) is in the transparent state, and simultaneously, the sub-pixel area (P) with the first color is transparent, and the rest of the sub-pixel area (P) is opaque, thereby realizing a pure color display mode with the first color; or alternatively, the process may be performed,

applying a pressure difference between the first transparent electrode (133) and the second transparent electrode (134) corresponding to the sub-pixel region except the first color, and not applying a pressure difference between the first transparent electrode (133) and the second transparent electrode (134) corresponding to the second color resistor (172) corresponding to the first color, so that the sub-pixel region corresponding to the first color resistor (132) with the color state of the first color is opaque, and the rest of the sub-pixel regions are transparent, thereby realizing a pure color display mode of the first color; or alternatively, the process may be performed,

And applying a pressure difference between the first transparent electrode (133) and the second transparent electrode (134) corresponding to the area where the second color resistor (172) cannot normally display, so that the corresponding first color resistor (132) is switched to a color state, and the corresponding second color resistor (172) is opaque.