Display panel and driving method

Abstract

The present application discloses a display panel and a driving method, wherein the display panel includes a plurality of data lines, a plurality of scan lines, and a plurality of pixels, each pixel including a first sub-pixel and a second sub-pixel connected to different scan lines, and an optical path changing layer capable of reflecting light to the left and right sides of the display panel is provided in the light-emitting surface direction of the display panel, the first gate driving module outputs a first gate driving signal to the scan line corresponding to the first sub-pixel, and the second gate driving module outputs a second gate driving signal to the scan line corresponding to the second sub-pixel, and controls the scanning cycle to realize a two-way screen display with different refresh rates. The present application sets an optical path changing layer on the light-emitting surface of the display panel, which can reflect light to both sides of the display panel, thereby realizing a two-way display of the display panel, and different sub-pixels receive gate driving signals respectively, and have different scanning cycles, so that different refresh rates can be realized when realizing a two-way display.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a driving method. Background Art

[0002] With the development of display technology, display panels can be used in business halls of window industries such as communications, government windows, finance, and transportation, public places with large traffic such as airports, railway stations, subway stations, canteens, digital cameras, camcorders, mobile phones and other electronic products, etc.

[0003] Currently, display panels are used as in-vehicle screens. In order to allow the main driver and the co-driver to watch different display panels, such as the main driver watching navigation and the co-driver watching videos, this is usually achieved through split screen, that is, the display panel is divided into two, the left half displays one screen, and the right half displays another screen. This causes the displayed screen to become smaller, only half of the display panel, causing the user to not see the picture clearly, the screen utilization rate is low, and the refresh rates required for the navigation screen and the entertainment screen are different. If high refresh rates are used for both, high power consumption will result. Summary of the invention

[0004] The purpose of the present application is to provide a display panel and a driving method, which can display images on both sides of the same display panel without changing the size of the displayed image, thereby improving the utilization rate of the display panel and reducing power consumption.

[0005] The present application discloses a display panel, which includes multiple data lines, multiple scan lines, and multiple pixels, each pixel includes a first sub-pixel and a second sub-pixel, the first sub-pixel and the second sub-pixel are respectively connected to different scan lines, and an optical path changing layer is provided in the light emitting surface direction of the display panel, and the optical path changing layer can reflect light to the left and right sides of the display panel; wherein, the display panel also includes a first gate driving module and a second gate driving module, the first gate driving module outputs a first gate driving signal to the scan line corresponding to the first sub-pixel to display the left side picture at a first refresh rate, and the second gate driving module outputs a second gate driving signal to the scan line corresponding to the second sub-pixel to display the right side picture at a second refresh rate.

[0006] Optionally, the optical path changing layer includes a black matrix layer, a double-sided reflection layer, a first electrochromic layer and a second electrochromic layer arranged in the same layer, the double-sided reflection layer is arranged between the first electrochromic layer and the second electrochromic layer, the first electrochromic layer and the black matrix layer are spaced apart to form a first reflection area, and the second electrochromic layer and the black matrix layer are spaced apart to form a second reflection area; when the first electrochromic layer and the second electrochromic layer are in a transparent state, the light on the light emitting surface is reflected by the double-sided reflection layer and then passes through the first reflection area and the second reflection area to form pictures on the left and right sides of the display panel respectively.

[0007] Optionally, a first electroreflective layer is provided on a side of the black matrix layer close to the first electrochromic layer, and a second electroreflective layer is provided on a side of the black matrix layer close to the second electrochromic layer, and the first electroreflective layer and the second electroreflective layer are formed of a magnesium-aluminum alloy material; when the display panel displays unidirectionally, one of the first electrochromic layer and the second electrochromic layer is controlled to be transparent and the other to be opaque, and in the corresponding transparent display direction, the corresponding first electroreflective layer or the second electroreflective layer is controlled to reflect.

[0008] Optionally, the display panel includes a thin film transistor layer, in which a thin film transistor is arranged corresponding to each sub-pixel, the first sub-pixel and the second sub-pixel have the same color, the first sub-pixel and the second sub-pixel in each pixel are respectively connected to different data lines through corresponding thin film transistors, the data line connected to the first sub-pixel is provided with a first data signal by a first data driving chip, and the data line connected to the second sub-pixel is provided with a second data signal by a second data driving chip, and when the first sub-pixel and the second sub-pixel receive the first gate driving signal and the second gate driving signal simultaneously or in time-sharing, they also receive the first data signal and the second data signal simultaneously or in time-sharing, so as to realize bidirectional simultaneous display of the same or different pictures on the display panel, or bidirectional time-sharing display of the same or different pictures.

[0009] Optionally, the display panel includes a first substrate and a second substrate, wherein the first substrate is provided with a coating layer, a cathode layer, an organic light-emitting layer and an anode layer in sequence in the direction toward the second substrate, and the second substrate is provided with the light path changing layer and the color resist layer in sequence in the direction toward the first substrate; wherein the coating layer, cathode layer, organic light-emitting layer and anode layer are all concave-convex.

[0010] Optionally, the display panel includes a first substrate and a second substrate, the first substrate and the second substrate are arranged in a box, the display panel also includes a refractive layer, a third electrochromic layer and a fourth electrochromic layer, the refractive layer is arranged on a surface of the optical path changing layer away from the light emitting surface, the third electrochromic layer and the fourth electrochromic layer are arranged on the same layer and between the refractive layer and the optical path changing layer, the third electrochromic layer is located directly above the first reflection area, and the fourth electrochromic layer is located directly above the second reflection area; wherein the refractive layer includes a first medium filling area and a second medium filling area, and in the direction from the second substrate to the first substrate, the width of the first medium filling area changes from large to small, the width of the second medium filling area changes from small to large, and the refractive index of the second medium filling area is smaller than the refractive index of the first medium filling area.

[0011] The present application also discloses a driving method for driving any of the above-mentioned display panels, the driving method comprising the steps of:

[0012] Detect the display mode of the next frame of the display panel;

[0013] If it is a bidirectional display mode with the same refresh rate, a first gate drive signal and a second gate drive signal with the same timing are generated to the scan line of the corresponding sub-pixel; if it is a bidirectional display mode with different refresh rates, a first gate drive signal and a second gate drive signal with different timing are generated to the scan line of the corresponding sub-pixel.

[0014] Optionally, the optical path changing layer includes a black matrix layer, a double-sided reflection layer, a first electrochromic layer and a second electrochromic layer arranged in the same layer, the double-sided reflection layer is arranged between the first electrochromic layer and the second electrochromic layer, and the first electrochromic layer and the second electrochromic layer are arranged at intervals from the black matrix layer. If it is a bidirectional same refresh rate display mode, the first gate drive signal and the second gate drive signal with the same timing are generated to the scanning line of the corresponding sub-pixel; if it is a bidirectional different refresh rate display mode, the step of generating the first gate drive signal and the second gate drive signal with different timing to the scanning line of the corresponding sub-pixel includes:

[0015] If it is a bidirectional display, the first electrochromic layer and the second electrochromic layer are controlled to be transparent. If it is a unidirectional display, one of the first electrochromic layer and the second electrochromic layer is controlled to be transparent and the other is controlled to be opaque.

[0016] Optionally, a first electro-reflective layer is provided on a side of the black matrix layer close to the first electro-chromic layer, and a second electro-reflective layer is provided on a side of the black matrix layer close to the second electro-chromic layer. If bidirectional display is used, the step of controlling the first electro-chromic layer and the second electro-chromic layer to be transparent, and if unidirectional display is used, the step of controlling one of the first electro-chromic layer and the second electro-chromic layer to be transparent and the other to be opaque comprises:

[0017] If it is a one-way display, the first electrochromic layer is controlled to be transparent, the second electrochromic layer is controlled to be opaque, the first electroreflective layer is controlled to reflect, and the second electroreflective layer is controlled to be opaque and not reflective; or the second electrochromic layer is controlled to be transparent, the first electrochromic layer is controlled to be opaque, the second electroreflective layer is controlled to reflect, and the first electroreflective layer is controlled to be opaque and not reflective.

[0018] Optionally, the first sub-pixel and the second sub-pixel are respectively connected to different scan lines and data lines, and if it is a bidirectional display mode with the same refresh rate, the step of generating a first gate drive signal and a second gate drive signal with the same timing to the scan lines of the corresponding sub-pixels; if it is a bidirectional display mode with different refresh rates, the step of generating a first gate drive signal and a second gate drive signal with different timing to the scan lines of the corresponding sub-pixels includes:

[0019] When the display panel uses the same refresh rate to display the same picture in both directions, if the display is time-sharing, a first gate driving signal and a second gate driving signal with the same timing are generated and inputted to the scanning lines corresponding to the first sub-pixel and the second sub-pixel in time-sharing, and a first data signal and a second data signal with the same data are generated and inputted to the data lines corresponding to the first sub-pixel and the second sub-pixel respectively;

[0020] When the display panel displays different pictures in two directions using different refresh rates, if the display is displayed in time-sharing mode, a first gate drive signal and a second gate drive signal with different timings are generated and input to the scan lines corresponding to the first sub-pixel and the second sub-pixel in time-sharing mode, and a first data signal and a second data signal with different data are generated and input to the data lines corresponding to the first sub-pixel and the second sub-pixel respectively.

[0021] Compared with the existing solution of dividing a display panel into two display areas to display two pictures, the present application does not divide the display area of ​​the display panel into two display areas, but sets an optical path changing layer on the light emitting surface of the display panel to reflect the original direct display light to both sides of the display panel, and the sub-pixels on the corresponding two sides are connected to different scanning lines, which can receive different gate drive signals to achieve displays with different refresh rates, which not only improves the screen utilization rate, but also helps to reduce the refresh rate of the corresponding directions in the left and right directions according to the displayed picture, thereby reducing power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0023] Figure 1 is a schematic diagram of a display panel according to the first embodiment of the present application;

[0024] Figure 2 is a cross-sectional schematic diagram of a display panel according to the first embodiment of the present application;

[0025] Figure 3 is a schematic diagram of a display panel according to a second embodiment of the present application;

[0026] Figure 4 is a cross-sectional schematic diagram of a display panel according to a third embodiment of the present application;

[0027] Figure 5 is a schematic cross-sectional view of a display panel according to a fourth embodiment of the present application;

[0028] Figure 6 is a cross-sectional schematic diagram of a display panel according to a fifth embodiment of the present application;

[0029] Figure 7 is a schematic diagram of a display panel according to a sixth embodiment of the present application;

[0030] Figure 8 is a schematic flow chart of a driving method according to the seventh embodiment of the present application;

[0031] Fig. 9 This is a schematic flow chart of a driving method of the eighth embodiment of the present application.

[0032] Among them, 100, display panel; 110, data line; 120, scan line; 130, pixel; 131, first sub-pixel; 132, second sub-pixel; 140, light emitting surface; 150, light path changing layer; 151, black matrix layer; 152, double-sided reflection layer; 153, first electrochromic layer; 154, second electrochromic layer; 155, first reflection area; 156, second reflection area; 157, first electroreflective layer; 158, second electroreflective layer; 160, first gate driving module; 1 70. Second gate driving module; 180. Thin film transistor layer; 181. Thin film transistor; 190. First substrate; 191. Coating layer; 192. Cathode layer; 193. Organic light-emitting layer; 194. Anode layer; 200. Second substrate; 201. Color resistance layer; 210. Refractive layer; 211. First dielectric filling area; 212. Second dielectric filling area; 220. Third electrochromic layer; 230. Fourth electrochromic layer; 240. First data driving chip; 250. Second data driving chip. DETAILED DESCRIPTION

[0033] It should be understood that the terms used herein, the specific structures and functional details disclosed are only for describing specific embodiments and are representative, but the present application can be implemented in many alternative forms and should not be construed as being limited to only the embodiments described herein.

[0034] The present application is described in detail below with reference to the accompanying drawings and optional embodiments.

[0035] Embodiment 1:

[0036] like Figure 1As shown, as the first embodiment of the present application, a display panel 100 is disclosed, the display panel 100 includes a plurality of data lines 110, a plurality of scan lines 120, and a plurality of pixels 130, each pixel 130 includes a first sub-pixel 131 and a second sub-pixel 132, the first sub-pixel 131 and the second sub-pixel 132 are respectively connected to different scan lines 120, and an optical path changing layer 150 is provided in the direction of the light emitting surface 140 of the display panel 100, and along the extending direction of the scan line 120, the optical path changing layer 150 can reflect light to the left and right sides of the display panel 100; In the embodiment, the display panel 100 also includes a first gate driving module 160 and a second gate driving module 170. The first gate driving module 160 and the second gate driving module 170 are usually respectively arranged on both sides of the display panel 100. The first gate driving module 160 outputs a first gate driving signal to the scanning line 120 corresponding to the first sub-pixel 131 to display the left picture at a first refresh rate, and the second gate driving module 170 outputs a second gate driving signal to the scanning line 120 corresponding to the second sub-pixel 132 to display the right picture at a second refresh rate, thereby realizing two-way picture display with different refresh rates.

[0037] In this embodiment, an optical path changing layer 150 is provided on the light emitting surface 140 of the display panel 100, and light is emitted from the left and right sides, and the original direct display light is reflected to the two sides of the display panel 100, so as to ensure the light required for the pictures on the left and right sides. The display needs of people on the left and right sides can be met without dividing the screen. The pictures on both sides can only be seen by people on the corresponding sides without interfering with each other. Moreover, the display panel 100 is further provided with a first gate driving module 160 and a second gate driving module 170 corresponding to different sub-pixels. The first gate driving module 160 outputs a first gate driving signal to the scanning line 120 corresponding to the first sub-pixel 131, and the second gate driving module 170 outputs a second gate driving signal to the scanning line 120 corresponding to the second sub-pixel 132. The scanning period corresponding to the first gate driving signal and the scanning period corresponding to the second gate driving signal can be the same or different, that is, the display of the pictures on both sides with different refresh rates can be met, and high refresh is not required at the same time. The side with low display requirement can be selected for low refresh, thereby reducing power consumption.

[0038] Embodiment 2:

[0039] like Figure 3As shown, as the second embodiment of the present application, it is a further improvement and refinement of the above-mentioned first embodiment, the optical path changing layer 150 includes a black matrix layer 151, a double-sided reflection layer 152, a first electrochromic layer 153 and a second electrochromic layer 154 arranged in the same layer, the double-sided reflection layer 152 is arranged between the first electrochromic layer 153 and the second electrochromic layer 154, the first electrochromic layer 153 and the black matrix layer 151 are arranged at intervals to form a first reflection area 155, and the second electrochromic layer 154 and the black matrix layer 151 are arranged at intervals to form a second reflection area 156; when the first electrochromic layer 153 and the second electrochromic layer 154 are in a transparent state, the light on the light emitting surface 140 is reflected by the double-sided reflection layer 152 and passes through the first reflection area 155 and the second reflection area 156 to form pictures on the left and right sides of the display panel 100 respectively.

[0040] The present embodiment mainly refines and improves the optical path changing layer 150. The optical path changing layer 150 is arranged on the light emitting surface 140. The specific position can be selected according to the process requirements or display requirements. Generally, the optical path changing layer 150 is arranged on the color resist layer 201. The specific optical path changing layer 150 includes a light-shielding black matrix layer 151. The black matrix layer 151 includes a plurality of black matrices, and each black matrix is ​​arranged corresponding to the edge of each pixel 130; the optical path changing layer 150 includes a reflective layer for reflecting light. Because both the left and right sides will reflect, a double-sided reflective layer 152 is selected. It also includes an electric layer that can realize transparent and opaque The electrochromic layer, when light is incident obliquely onto the reflective layer, it will be reflected to the left and right sides; the first electrochromic layer 153 and the second electrochromic layer 154 can improve the diversity of display modes. By controlling the electrochromic layer, bidirectional display can be achieved, and unidirectional display on one side of the left or right can also be achieved. If it is a bidirectional display, the first electrochromic layer 153 and the second electrochromic layer 154 are controlled to be transparent; if it is a unidirectional display, the first electrochromic layer 153 is controlled to be transparent and the second electrochromic layer 154 is opaque; or the second electrochromic layer 154 is controlled to be transparent and the first electrochromic layer 153 is opaque.

[0041] Embodiment 3:

[0042] like Figure 4As shown, as the third embodiment of the present application, it is a further improvement and refinement of the above-mentioned second embodiment, a first electroreflective layer 157 is provided on the side of the black matrix layer 151 close to the first electrochromic layer 153, and a second electroreflective layer 158 is provided on the side of the black matrix layer 151 close to the second electrochromic layer 154, and the first electroreflective layer 157 and the second electroreflective layer 158 are formed of magnesium-aluminum alloy material; when the display panel 100 is unidirectionally displayed, one of the first electrochromic layer 153 and the second electrochromic layer 154 is controlled to be transparent and the other is opaque, and in the corresponding transparent display direction, the corresponding first electroreflective layer 157 or the second electroreflective layer 158 is controlled to reflect.

[0043] This embodiment can further improve the brightness of single-sided display. Electrochromic reflective layers are provided on both sides of the black matrix layer 151. When one-way display is required, taking the left-side display as an example, the first electrochromic layer 153 remains transparent, and the light on the left side reaches the first reflective area 155 and is reflected to the left side by the double-sided reflective layer 152 to realize picture display, while the corresponding first electrochromic reflective layer 157 becomes a reflective state, reflecting the light on the right side to the left side to enhance the brightness of the picture display on the left side.

[0044] Embodiment 4:

[0045] like Figure 5 As shown, as the fourth embodiment of the present application, it is a further improvement and refinement of the above-mentioned third embodiment. The display panel 100 includes a first substrate 190 and a second substrate 200. The first substrate 190 is provided with a coating layer 191, a cathode layer 192, an organic light-emitting layer 193 and an anode layer 194 in sequence in the direction of the second substrate 200. The second substrate 200 is provided with the optical path changing layer 150 and the color resist layer 201 in sequence in the direction of the first substrate 190; the color resist layer 201 includes color resists of different colors and a black matrix structure, wherein the coating layer 191, the cathode layer 192, the organic light-emitting layer 193 and the anode layer 194 are all concave-convex.

[0046] In this embodiment, the display panel 100 is an organic light-emitting display panel 100, and a concave-convex coating layer 191, a cathode layer 192, an organic light-emitting layer 193 and an anode layer 194 are provided on the first substrate 190. In order to change the angle of light after entering the color resist layer 201, the organic light-emitting layer 193 is set to be concave-convex, so that the light can be obliquely incident on the color resist layer 201, and then obliquely incident on the optical path changing layer 150. The double-sided reflection layer 152 of the optical path changing layer 150 can reflect more light, avoiding too much vertically incident light, causing the light to leak from the middle position, thereby affecting the display effects on the left and right sides.

[0047] Embodiment 5:

[0048] like Figure 6 As shown, as the fifth embodiment of the present application, it is a further limitation and refinement of any of the above embodiments. Taking the fourth embodiment as an example, it is a further improvement on the fourth embodiment. The display panel 100 further includes a refractive layer 210, a third electrochromic layer 220 and a fourth electrochromic layer 230. The refractive layer 210 is arranged on a side of the optical path changing layer 150 away from the light emitting surface 140. The third electrochromic layer 220 and the fourth electrochromic layer 230 are arranged in the same layer and are arranged between the refractive layer 210 and the optical path changing layer 150. The third electrochromic layer 220 is located directly above the first reflective area 155, and the fourth electrochromic layer 230 is located directly above the second reflective area 156; wherein the refractive layer 210 includes a first medium-filled area 211 and a second medium-filled area 212, and in the direction from the second substrate 200 toward the first substrate 190, the width of the first medium-filled area 211 changes from large to small, and the width of the second medium-filled area 212 changes from small to large, and the refractive index of the second medium-filled area 212 is smaller than the refractive index of the first medium-filled area 211.

[0049] Considering that after the light passes through the optical path changing layer 150, part of the light will still pass through directly. In order to utilize the part of the light that passes through directly, the light that passes through directly is changed to be emitted to both sides, and a refraction layer 210 is arranged behind the optical path changing layer 150; the refraction layer 210 is arranged on the side of the optical path changing layer 150 away from the light emitting surface 140, and the refraction layer 210 includes a first medium filling area 211 and a second medium filling area 212. In the direction from the second substrate 200 to the first substrate 190, the width of the first medium filling area 211 changes from large to small, and the width of the second medium filling area 212 changes from small to large; the first medium filling area 211 is filled with a first dielectric material, and the second dielectric filling area 212 is filled with a first dielectric material. The medium filling area 212 is filled with a second medium material, and the refractive index of the second medium material is less than the refractive index of the first medium material; the light coming out of the light emitting surface 140 is emitted to the optical path changing layer 150 at different angles, and only the light emitted to the double-sided reflection layer 152 can be reflected to the left and right sides of the display panel 100. In order to change the emission direction or angle of the light directly emitted from the optical path changing layer 150, a refractive layer 210 with different medium materials is provided, and the straight light first reaches the second medium filling area 212 filled with the second medium material, and then is emitted from the first medium filling area 211 to the two sides of the display panel 100, thereby improving the brightness of the left and right sides of the display panel 100 and improving the display effect.

[0050] In addition, considering that the present application can realize not only bidirectional display but also unidirectional display, in order to prevent part of the light from being directly emitted from the first reflection area 155 or the second reflection area 156 to the display surface, an electrochromic layer is provided before the refractive layer 210. If unidirectional display is required, the electrochromic layer on the corresponding side that does not need to be displayed is made opaque to block the light from entering the refractive layer 210, so as to prevent the light on the other side from being refracted by the refractive layer 210 and displayed on the other side during unidirectional display.

[0051] It should be noted that the improvement scheme of this embodiment is not limited to the improvement on the first embodiment, but can also be applied to other embodiments of the present application, as long as the refractive layer 210, the third electrochromic layer 220 and the fourth electrochromic layer 230 are arranged on the side of the optical path changing layer 150 away from the light emitting surface 140.

[0052] Embodiment 6:

[0053] like Figure 7 As shown, as the sixth embodiment of the present application, it is a further refinement and improvement of any of the above embodiments. The display panel 100 includes a thin film transistor layer 180, and the thin film transistor layer 180 is provided with a thin film transistor 181 corresponding to each sub-pixel. The first sub-pixel 131 and the second sub-pixel 132 have the same color. The first sub-pixel 131 and the second sub-pixel 132 in each pixel 130 are respectively connected to different data lines 110 through corresponding thin film transistors 181. The data line 110 connected to the first sub-pixel 131 is provided with a first data signal by a first data driving chip 240, and the data line 110 connected to the second sub-pixel 132 is provided with a second data signal by a second data driving chip 250. When the first sub-pixel 131 and the second sub-pixel 132 receive the first gate driving signal and the second gate driving signal simultaneously or in time-sharing, they also receive the first data signal and the second data signal simultaneously or in time-sharing, so as to realize the display panel 100 to display the same or different pictures in both directions at the same time, or to display the same or different pictures in both directions in time-sharing.

[0054] In order to improve the display richness of the display panel 100, a color resist layer 201 is provided on one side of the second substrate 200 close to the first substrate 190, and the color resist layer 201 includes red color resist, green color resist and blue color resist and a black matrix between the color resists, and each optical path changing layer 150 corresponds to two red color resists or two green color resists or two blue color resists; the two color resists corresponding to each optical path changing layer 150 correspond to two sub-pixels displayed on both sides of the display panel 100 respectively; it can be understood that the original pixel 130 is divided into two sub-pixels, the resolution is not reduced, and the control is more precise; and each sub-pixel is connected to different data lines 110 and scan lines 120 through corresponding thin film transistors 181, and the scan lines 120 and data lines 110 can be connected to different gate driving modules and data driving chips, so that different pictures on both sides can be displayed simultaneously or in time-sharing mode, and the same picture on both sides can be displayed simultaneously or in time-sharing mode, so as to improve the richness of the display and the user experience.

[0055] Embodiment 7:

[0056] like Figure 8 As shown, as the seventh embodiment of the present application, a driving method is disclosed, the driving method is used to drive the display panel as described in any of the above embodiments, and the driving method comprises the steps of:

[0057] S1: Detect the display mode of the next frame of the display panel;

[0058] S2: If it is a bidirectional display mode with the same refresh rate, a first gate drive signal and a second gate drive signal with the same timing are generated to the scan lines of the corresponding sub-pixels; if it is a bidirectional display mode with different refresh rates, a first gate drive signal and a second gate drive signal with different timing are generated to the scan lines of the corresponding sub-pixels.

[0059] refer to Figure 4 , Figure 7 and Figure 8 As shown, in the present embodiment, the display panel 100 is provided with an optical path changing layer 150 to change the direction of light, and the timing or period of the first gate driving signal and the second gate driving signal may be the same or different; and in the specific driving display, the display mode of the next frame will be detected first. It has been explained in the above embodiment that the display panel 100 of the present application can realize displays with different refresh rates. In the specific display, if it is detected that the display mode of the display panel 100 is a bidirectional display mode with the same refresh rate, a first gate driving signal and a second gate driving signal with the same timing are generated to the scanning line 120 of the corresponding sub-pixel 130; if it is a bidirectional display mode with different refresh rates, a first gate driving signal and a second gate driving signal with different timing are generated to the scanning line 120 of the corresponding sub-pixel.

[0060] Furthermore, the optical path changing layer 150 includes a black matrix layer 151, a double-sided reflection layer 152, a first electrochromic layer 153 and a second electrochromic layer 154 which are arranged in the same layer, the double-sided reflection layer 152 is arranged between the first electrochromic layer 153 and the second electrochromic layer 154, the first electrochromic layer 153 and the second electrochromic layer 154 are arranged at intervals from the black matrix layer 151, and in the step S2, if it is a bidirectional display, the first electrochromic layer 153 and the second electrochromic layer 154 are controlled to be transparent, and if it is a unidirectional display, one of the first electrochromic layer 153 and the second electrochromic layer 154 is controlled to be transparent and the other is opaque, and the reflection of light is controlled by controlling the corresponding electrochromic layer, thereby realizing display on one side or both sides.

[0061] In addition, a first electro-reflective layer 157 is provided on one side of the black matrix layer 151 close to the first electro-chromic layer 153, and a second electro-reflective layer 158 is provided on one side of the black matrix layer 151 close to the second electro-chromic layer 154. When the display is bidirectional, the first electro-chromic layer 153 and the second electro-chromic layer 154 are controlled to be transparent. When the display is unidirectional, one of the first electro-chromic layer 153 and the second electro-chromic layer 154 is controlled to be transparent and the other is opaque. In the steps shown in the figure, it is necessary to control the corresponding electroreflective layer to work. Specifically, if it is a one-way display, the first electrochromic layer 153 is controlled to be transparent, the second electrochromic layer 154 is opaque, the first electroreflective layer 157 is reflective, and the second electroreflective layer 158 is opaque and does not reflect; or the second electrochromic layer 154 is controlled to be transparent, the first electrochromic layer 153 is opaque, the second electroreflective layer 158 is reflective, and the first electroreflective layer 157 is opaque and does not reflect.

[0062] Embodiment 8:

[0063] like Fig. 9 As shown, as the eighth embodiment of the present application, it is a further improvement of the seventh embodiment mentioned above, referring to Figure 4 , Figure 7 and Fig. 9 As shown, the first sub-pixel 131 and the second sub-pixel 132 are respectively connected to different scan lines 120 and data lines 110, and the step S2 includes:

[0064] S21: when the display panel displays the same picture in both directions with the same refresh rate, if the display is time-sharing, a first gate driving signal and a second gate driving signal with the same timing are generated and inputted to the scan lines corresponding to the first sub-pixel and the second sub-pixel in time-sharing, and a first data signal and a second data signal with the same data are generated and inputted to the data lines corresponding to the first sub-pixel and the second sub-pixel respectively;

[0065] S22: When the display panel uses different refresh rates to display different pictures in both directions, if it is displayed in time-sharing mode, a first gate drive signal and a second gate drive signal with different timings are generated and input to the scan lines corresponding to the first sub-pixel and the second sub-pixel in time-sharing mode, and a first data signal and a second data signal with different data are generated and input to the data lines corresponding to the first sub-pixel and the second sub-pixel respectively.

[0066] In this embodiment, a variety of display modes are provided, and the corresponding sub-pixels can be given signals by a separate gate drive module and a data drive chip, and the corresponding electrochromic layer and electroreflective layer are controlled to be transparent or opaque, reflective or non-reflective according to the specific display mode, so as to realize switching display of multiple modes and improve display richness.

[0067] It should be noted that the inventive concept of the present application can form a large number of embodiments, but the length of the application document is limited and it is impossible to list them one by one. Therefore, under the premise of no conflict, the embodiments or technical features described above can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effects will be enhanced.

[0068] The above content is a further detailed description of the present application in combination with specific optional implementation methods, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, which should be deemed to fall within the scope of protection of the present application.

Claims

1. A display panel comprising a plurality of data lines, a plurality of scan lines, and a plurality of pixels, characterized in that: Each pixel includes a first sub-pixel and a second sub-pixel, the first sub-pixel and the second sub-pixel are respectively connected to different scanning lines, and an optical path changing layer is provided in the light emitting surface direction of the display panel, and the optical path changing layer can reflect light to the left and right sides of the display panel; The display panel further includes a first gate driving module and a second gate driving module, wherein the first gate driving module outputs a first gate driving signal to a scanning line corresponding to the first sub-pixel to display a left image at a first refresh rate, and the second gate driving module outputs a second gate driving signal to a scanning line corresponding to the second sub-pixel to display a right image at a second refresh rate; In each row of pixels, the first sub-pixels and the second sub-pixels in all pixels are arranged alternately, and the left picture and the right picture are displayed on the entire surface of the display panel; The optical path changing layer comprises a black matrix layer, a double-sided reflection layer, a first electrochromic layer and a second electrochromic layer which are arranged in the same layer, the double-sided reflection layer is arranged between the first electrochromic layer and the second electrochromic layer, the first electrochromic layer and the black matrix layer are arranged at intervals to form a first reflection area, and the second electrochromic layer and the black matrix layer are arranged at intervals to form a second reflection area; when the first electrochromic layer and the second electrochromic layer are in a transparent state, the light on the light emitting surface is reflected by the double-sided reflection layer and passes through the first reflection area and the second reflection area to form images on the left and right sides of the display panel respectively; The display panel comprises a first substrate and a second substrate, the first substrate and the second substrate are arranged in a box, the display panel further comprises a refractive layer, a third electrochromic layer and a fourth electrochromic layer, the refractive layer is arranged on a side of the optical path changing layer away from the light exiting surface, the third electrochromic layer and the fourth electrochromic layer are arranged in the same layer and arranged between the refractive layer and the optical path changing layer, the third electrochromic layer is located directly above the first reflective area, and the fourth electrochromic layer is located directly above the second reflective area; Wherein, the refraction layer includes a first medium-filled area and a second medium-filled area. In the direction from the second substrate to the first substrate, the width of the first medium-filled area changes from large to small, and the width of the second medium-filled area changes from small to large. The refractive index of the second medium-filled area is smaller than the refractive index of the first medium-filled area.

2. The display panel according to claim 1, characterized in that: A first electroreflective layer is provided on a side of the black matrix layer close to the first electrochromic layer, and a second electroreflective layer is provided on a side of the black matrix layer close to the second electrochromic layer, wherein the first electroreflective layer and the second electroreflective layer are formed of a magnesium-aluminum alloy material; When the display panel is in unidirectional display mode, one of the first electrochromic layer and the second electrochromic layer is controlled to be transparent and the other is controlled to be opaque, and in the corresponding transparent display direction, the corresponding first electroreflective layer or the second electroreflective layer is controlled to reflect.

3. The display panel according to claim 1, characterized in that: The display panel includes a thin film transistor layer, in which a thin film transistor is arranged corresponding to each sub-pixel, the first sub-pixel and the second sub-pixel have the same color, the first sub-pixel and the second sub-pixel in each pixel are respectively connected to different data lines through corresponding thin film transistors, the data line connected to the first sub-pixel is provided with a first data signal by a first data driving chip, and the data line connected to the second sub-pixel is provided with a second data signal by a second data driving chip, when the first sub-pixel and the second sub-pixel receive the first gate driving signal and the second gate driving signal simultaneously or in time-sharing, they also receive the first data signal and the second data signal simultaneously or in time-sharing, so as to realize bidirectional simultaneous display of the same or different pictures by the display panel, or bidirectional time-sharing display of the same or different pictures.

4. The display panel according to claim 1, characterized in that: The display panel comprises a first substrate and a second substrate, wherein the first substrate is provided with a coating layer, a cathode layer, an organic light-emitting layer and an anode layer in sequence in a direction toward the second substrate, and the second substrate is provided with the light path changing layer and the color resistance layer in sequence in a direction toward the first substrate; Wherein, the coating layer, cathode layer, organic light-emitting layer and anode layer are all concave-convex.

5. A driving method, characterized in that: Used to drive the display panel according to any one of claims 1 to 4, the driving method comprising the steps of: Detect the display mode of the next frame of the display panel; If it is a bidirectional display mode with the same refresh rate, a first gate drive signal and a second gate drive signal with the same timing are generated to the scan line of the corresponding sub-pixel; if it is a bidirectional display mode with different refresh rates, a first gate drive signal and a second gate drive signal with different timing are generated to the scan line of the corresponding sub-pixel.

6. The driving method according to claim 5, characterized in that: The optical path changing layer includes a black matrix layer, a double-sided reflection layer, a first electrochromic layer and a second electrochromic layer arranged in the same layer, the double-sided reflection layer is arranged between the first electrochromic layer and the second electrochromic layer, the first electrochromic layer and the second electrochromic layer are arranged at intervals from the black matrix layer, and if it is a bidirectional same refresh rate display mode, a first gate driving signal and a second gate driving signal with the same timing are generated to the scanning lines of the corresponding sub-pixels; If it is a bidirectional display mode with different refresh rates, the steps of generating a first gate driving signal and a second gate driving signal with different timings to the corresponding scan lines of the sub-pixels include: If it is a bidirectional display, the first electrochromic layer and the second electrochromic layer are controlled to be transparent. If it is a unidirectional display, one of the first electrochromic layer and the second electrochromic layer is controlled to be transparent and the other is controlled to be opaque.

7. The driving method according to claim 6, characterized in that: A first electro-reflective layer is provided on one side of the black matrix layer close to the first electro-chromic layer, and a second electro-reflective layer is provided on one side of the black matrix layer close to the second electro-chromic layer. If bidirectional display is used, the first electro-chromic layer and the second electro-chromic layer are controlled to be transparent, and if unidirectional display is used, one of the first electro-chromic layer and the second electro-chromic layer is controlled to be transparent and the other is controlled to be opaque, comprising: If it is a one-way display, the first electrochromic layer is controlled to be transparent, the second electrochromic layer is controlled to be opaque, the first electroreflective layer is controlled to reflect, and the second electroreflective layer is controlled to be opaque and not reflective; or the second electrochromic layer is controlled to be transparent, the first electrochromic layer is controlled to be opaque, the second electroreflective layer is controlled to reflect, and the first electroreflective layer is controlled to be opaque and not reflective.

8. The driving method according to claim 5, characterized in that: The first sub-pixel and the second sub-pixel are connected to different scan lines and data lines respectively, and if the display mode is bidirectional with the same refresh rate, a first gate driving signal and a second gate driving signal with the same timing are generated to the scan lines of the corresponding sub-pixels; If it is a bidirectional display mode with different refresh rates, the steps of generating a first gate driving signal and a second gate driving signal with different timings to the corresponding scan lines of the sub-pixels include: When the display panel uses the same refresh rate to display the same picture in both directions, if the display is time-sharing, a first gate driving signal and a second gate driving signal with the same timing are generated and inputted to the scanning lines corresponding to the first sub-pixel and the second sub-pixel in time-sharing, and a first data signal and a second data signal with the same data are generated and inputted to the data lines corresponding to the first sub-pixel and the second sub-pixel respectively; When the display panel displays different pictures in two directions using different refresh rates, if the display is displayed in time-sharing mode, a first gate drive signal and a second gate drive signal with different timings are generated and input to the scan lines corresponding to the first sub-pixel and the second sub-pixel in time-sharing mode, and a first data signal and a second data signal with different data are generated and input to the data lines corresponding to the first sub-pixel and the second sub-pixel respectively.

Images