Display device

Abstract

The present application provides a display device. The display device includes a liquid crystal display panel, a backlight assembly, and an OLED display panel; wherein the backlight assembly is disposed on the back of the liquid crystal display panel; and the OLED display panel is disposed around the liquid crystal display panel. The display device can effectively solve the problem of light leakage at the border between the liquid crystal display panel and the backlight assembly by arranging the OLED display panel around the liquid crystal display panel, thereby improving the imaging contrast.

Description

Technical Field

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

[0002] Nowadays, display panels have become one of the indispensable products in people's lives. With the rapid development of display technology, various display products have emerged, especially liquid crystal display panels (LCD) and organic light emitting diode (OLED) display panels, which have become the current mainstream display products.

[0003] Among them, LCD panels are favored by many users due to their advantages of low power consumption, no radiation, eye protection, etc. OLED panels are increasingly valued due to their advantages of full solid state, active light emission, high brightness, high contrast, ultra-thin, no viewing angle limitation, and wide operating temperature range.

[0004] However, LCD panels require a large backlight layer, and the backlight easily leaks out from the gap between the screen and the frame, causing light leakage problems; OLED panels have problems such as screen burn-in and flicker. Summary of the invention

[0005] The present application provides a display device, which aims to solve the problems of light leakage from the frame of a liquid crystal display panel and screen burn-in and stroboscopic problems of an OLED display panel in the prior art.

[0006] In order to solve the above technical problems, the first technical solution provided by the present application is to provide a display device. The display device includes:

[0007] Liquid crystal display panel;

[0008] A backlight assembly, disposed on the back of the liquid crystal display panel;

[0009] Wherein, the display device further comprises an OLED display panel, which is arranged around the liquid crystal display panel.

[0010] The liquid crystal display panel includes a first array substrate, the OLED display panel includes a second array substrate, and the first array substrate and the second array substrate share the same substrate.

[0011] The first array substrate includes a first driving circuit layer, the second array substrate includes a second driving circuit layer, and the first driving circuit layer and the second driving circuit layer share scanning lines and data lines.

[0012] Wherein, the ratio of the width of the OLED display panel to the maximum width of the display device is less than one eighth.

[0013] Wherein, the liquid crystal display panel comprises an array substrate, a liquid crystal layer and an opposing substrate, and the opposing substrate comprises a cover plate, a common electrode layer and a color filter layer;

[0014] The OLED display panel is arranged around the array substrate and the liquid crystal layer, and the counter substrate covers the array substrate, the liquid crystal layer, and the OLED display panel.

[0015] Wherein, the OLED display panel includes a cathode electrode layer; the cathode electrode layer is electrically connected to the common electrode layer.

[0016] The OLED display panel is in direct contact with the liquid crystal display panel, and the liquid crystal display panel has no frame glue.

[0017] The surface of the opposing substrate away from the liquid crystal layer is further provided with a first polarizing layer and a transparent coating surrounding the first polarizing layer. The first polarizing layer is provided corresponding to the liquid crystal layer and the array substrate, and the transparent coating is provided corresponding to the OLED display panel.

[0018] Among them, the liquid crystal display panel includes a first array substrate, the first array substrate includes a first substrate and a first driving circuit layer; the OLED display panel includes a second array substrate, the second array substrate includes a second substrate and a second driving circuit layer; the second array substrate and the first driving circuit layer are arranged on the first substrate, and the second array substrate is arranged around the first driving circuit layer.

[0019] The scan lines of the second driving circuit layer correspond one-to-one to and are electrically connected to the scan lines of the first driving circuit layer, and the data lines of the second driving circuit layer correspond one-to-one to and are electrically connected to the data lines of the first driving circuit layer.

[0020] Beneficial effects of the present application: Different from the prior art, the present application provides a display device, which includes a liquid crystal display panel, a backlight assembly and an OLED display panel; wherein the backlight assembly is arranged on the back of the liquid crystal display panel to provide a light source to the liquid crystal display panel. The embodiment of the present application arranges the OLED display panel around the liquid crystal display panel so that the OLED display panel replaces the outer ring light source of the traditional liquid crystal panel, and the backlight assembly does not need to be arranged around the liquid crystal panel, thereby solving the problem of light leakage generated by the backlight assembly at the border between the liquid crystal display panel and the backlight assembly, and improving the imaging contrast; at the same time, by only arranging the OLED display panel around the liquid crystal display panel, compared with the pure OLED panel, the display panel burn-in rate (pixel aging rate) and the stroboscopic problem are effectively reduced, and the power consumption of the display device can be effectively reduced, and the brightness is higher, thereby improving the standby time of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 any creative work.

[0022] Figure 1 is a schematic diagram of the planar structure of a display device provided in the first embodiment of the present application;

[0023] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0024] Figure 3 is a schematic cross-sectional structural diagram of a display device provided in a second embodiment of the present application;

[0025] Figure 4 yes Figure 3 A schematic diagram of a driving structure of a display device provided in an embodiment;

[0026] Figure 5 yes Figure 4 A schematic diagram of the equivalent driving circuit structure in the embodiment;

[0027] Figure 6 is a schematic structural diagram of scan lines and data lines of a display device provided in a third embodiment of the present application;

[0028] Figure 7 It is a schematic cross-sectional structure diagram of a display device provided in the fourth embodiment of the present application.

[0029] Reference numerals:

[0030] 1000-display device; 100-liquid crystal display panel; 101-first array substrate; 200-OLED display panel; 201-second array substrate; 300-backlight assembly; 10-substrate; 11-first display area; 12-second display area; 13-second polarizing layer; 14-first substrate; 15-second substrate; 20-first drive circuit layer; 21-first pixel circuit layer; 211-first sub-pixel drive circuit; 22-pixel electrode layer; 221-pixel electrode; 30-second drive circuit layer; 31-second pixel circuit layer; 311-second sub-pixel drive circuit; 32-anode electrode layer; 321-anode; 41-liquid crystal layer; 42-functional layer; 43-cathode electrode layer; 44-encapsulation layer; 50-opposite substrate; 51-cover plate; 52-color filter layer; 53-common electrode layer; 54-alignment layer; 55-first polarizing layer; 56-transparent coating layer;

[0031] Scan-scanning line; Scan1-first scanning line; Scan2-second scanning line; Data-data line; Data2-second data line; X-first direction; Y-second direction. DETAILED DESCRIPTION

[0032] The scheme of the embodiment of the present application is described in detail below in conjunction with the drawings of the specification.

[0033] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] The terms "first", "second", "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the embodiments of this application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0036] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0038] See also Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the planar structure of a display device provided in the first embodiment of the present application, Figure 2 yes Figure 1 In this embodiment, a display device 1000 is provided. The display device 1000 includes a liquid crystal display panel 100 , a backlight assembly 300 and an OLED display panel 200 .

[0039] The backlight assembly 300 is arranged on the back of the liquid crystal display panel 100 to provide a light source to the liquid crystal display panel 100. The backlight assembly 300 may specifically include components such as a lamp board, a light guide plate, and an optical film. The lamp board includes a plurality of light-emitting elements, which are arranged on the light-incoming side of the light guide plate so that the emitted light of the light-emitting elements is introduced into the light guide plate, thereby converting the point light source into a surface light source; the light-emitting element may specifically include one or more of a light-emitting diode (LED), a submillimeter light-emitting diode (Mini-LED), or a micro-light-emitting diode (Micro-LED). The optical film is arranged on the light-emitting side of the light guide plate to further process the surface light source to improve the light-emitting quality of the backlight assembly 300 and meet the requirements of the liquid crystal display panel 100 for the light source; the optical film may specifically include a light-enhancing film, a prism film, a diffuser, a wavelength conversion film, etc., which may be specifically arranged according to actual needs. Specifically, the backlight assembly 300 may be a side-entry backlight or a direct-down backlight, which may be specifically arranged according to actual needs.

[0040] The OLED display panel 200 is disposed around the liquid crystal display panel 100. Figure 1 As shown, it can be understood that the display area of ​​the display device 1000 has a first display area 11 and a second display area 12, the first display area 11 is located in the middle area of ​​the entire display area, the second display area 12 is located around the first display area 11 and surrounds the first display area 11, and the first display area 11 and the second display area 12 are seamlessly spliced; wherein, the first display area 11 displays the picture by the liquid crystal display panel 100, and the second display area 12 displays the picture by the OLED display panel 200.

[0041] Through the above-mentioned setting, the OLED display panel 200 replaces the peripheral light source of the traditional liquid crystal display panel 100, and displays the picture together with the liquid crystal display panel 100 in the middle area, that is, the frame area of ​​the liquid crystal display panel 100 is set as the OLED display panel 200. Since the liquid crystal display panel does not need to be set in the frame area of ​​the display panel, the backlight assembly 300 does not need to be set in the frame area of ​​the corresponding display area, thereby solving the problem of light leakage generated by the backlight assembly 300 at the frame between the liquid crystal display panel 100 and the backlight assembly 300, improving the imaging contrast, and reducing the frame width of the display device 1000. Moreover, compared with the pure OLED panel, the embodiment of the present application only sets the OLED display panel 200 around the liquid crystal display panel 100, so that the area of ​​the OLED display panel 200 is smaller, the number of self-luminous units of the OLED is smaller, and the phenomenon of OLED screen burn-in can be effectively reduced, the screen burn-in rate can be reduced, and the problem of stroboscopic can be reduced. It can also effectively reduce the power consumption of the display device 1000, and the brightness is higher, which increases the standby time of the display device 1000. It should be noted that the burn-in problem of the OLED display panel 200 involved in the embodiment of the present application refers to the problem of aging of the self-luminous units (pixels) of the OLED display panel 200 as the luminous time increases, and the flicker problem refers to the flicker that can be clearly felt by the human eye under low brightness, which will cause damage to the human eye.

[0042] In this embodiment, the OLED display panel 200 can be connected to the liquid crystal display panel 100 through an adhesive layer. The liquid crystal display panel 100 does not need to be provided with frame glue, which can effectively reduce the joint seam between the liquid crystal display panel 100 and the OLED display panel 200 to achieve a visually seamless joint effect, thereby effectively restoring the display image.

[0043] See also Figure 3 , Figure 3 1 is a schematic cross-sectional view of a display device provided in the second embodiment of the present application. In this embodiment, the liquid crystal display panel 100 includes a first array substrate 101, a liquid crystal layer 41 and an opposing substrate 50, and the OLED display panel 200 includes a second array substrate 201, a functional layer 42, a cathode electrode layer 43 and an encapsulation layer 44.

[0044] The first array substrate 101 includes a first drive circuit layer 20, the first drive circuit layer 20 includes a first pixel circuit layer 21 and a pixel electrode layer 22, wherein the first pixel circuit layer 21 includes a plurality of first sub-pixel drive circuits 211 (see Figure 4 and Figure 5), used to drive the liquid crystal molecules in the liquid crystal layer 41, control the deflection angle of the liquid crystal molecules, thereby regulating the light transmittance of the sub-pixel unit to achieve pixel-level picture display. Specifically, the pixel electrode layer 22 includes a plurality of pixel electrodes 221 that correspond to and are electrically connected to the first sub-pixel driving circuit 211, so that a pixel-level electric field is formed between the pixel electrode 221 and the common electrode, so as to drive the liquid crystal molecules located in the electric field area to deflect a certain angle, thereby regulating the light transmittance of the area to achieve picture display; wherein, the common electrode is arranged in the common electrode layer 53 on the opposing substrate 50 to cooperate with the pixel electrode 221 to form a vertical electric field to drive the liquid crystal molecules in the liquid crystal layer 41 to deflect to a preset angle. Alternatively, the common electrode can also be arranged in the first driving circuit layer 20 to cooperate with the pixel electrode 221 to form a horizontal electric field. It can be understood that the liquid crystal display panel 100 can be a VA type alignment, an FFS type alignment or an IPS type alignment, which can be specifically set according to actual needs.

[0045] In the second array substrate 201, the second driving circuit layer 30 includes a second pixel circuit layer 31 and an anode electrode layer 32; wherein the second pixel circuit layer 31 includes a plurality of second sub-pixel driving circuits 311, which are used to drive the light-emitting unit electrically connected to the second sub-pixel driving circuit 311 to emit light, and control the light-emitting intensity of the light-emitting unit to realize pixel-level picture display. Specifically, the light-emitting unit includes an anode electrode layer 32, a functional layer 42 and a cathode electrode layer 43; wherein the anode electrode layer 32 includes a plurality of anodes 321 corresponding to the functional layer 42 one by one, and the functional layer 42 may include a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting layer (EML), an electron transport layer (ETL) and an electron injection layer (EIL) stacked in sequence. In a specific embodiment, the functional layer 42 may also be provided with a hole blocking layer (HBL) between the hole transport layer and the light-emitting layer, and an electron blocking layer (EBL) between the light-emitting layer and the electron transport layer as required. Specifically, the second driving circuit layer 30 is the same as or similar to the driving circuit layer in the OLED panel in the prior art. For details, please refer to the prior art and no further introduction is given here.

[0046] Specifically, the first array substrate 101 and the second array substrate 201 share the same substrate 10; that is, the first drive circuit layer 20 and the second drive circuit layer 30 are prepared on the same substrate 10. In this embodiment, the substrate 10 can be divided into a first display area 11 and a second display area 12 according to the display area of ​​the liquid crystal display panel 100 and the display area of ​​the OLED display panel 200. The first display area 11 is the middle area of ​​the substrate 10, corresponding to the display area of ​​the liquid crystal display panel 100, and the second display area 12 is located around the first display area 11 and spliced ​​with the first display area 11, corresponding to the display area of ​​the OLED display panel 200. Among them, the first drive circuit layer 20 is arranged in the first display area 11 to form the first array substrate 101; the second drive circuit layer 30 is arranged in the second display area 12 to form the second array substrate 201.

[0047] In a specific manufacturing process, the first driving circuit layer 20 and the second driving circuit layer 30 can be prepared together on the substrate 10 to form an integrated first array substrate 101 and a second array substrate 201; it can be understood that the first substrate and the second substrate are array substrates of an integrated structure. Alternatively, the first driving circuit layer 20 can be prepared on the first display area 11 of the substrate 10, and then the second driving circuit layer 30 can be prepared on the second display area 12, or the second driving circuit layer 30 can be prepared first, and then the first driving circuit layer 20 can be prepared. The specific preparation can be carried out according to actual needs to meet the specification requirements of the production process and the requirements for display effects.

[0048] Furthermore, the counter substrate 50 includes a cover plate 51 , a common electrode layer 53 and a color filter layer 52 . The OLED display panel 200 is arranged around the array substrate and the liquid crystal layer 41 , and the counter substrate 50 covers the first array substrate 101 , the liquid crystal layer 41 and the OLED display panel 200 .

[0049] Specifically, the OLED display panel 200 further includes an encapsulation layer 44, which is located at the outermost layer of the OLED display panel 200 and is used to encapsulate the OLED display panel 200 to isolate the functional layer 42 from the external environment to prevent the intrusion of external water, oxygen, etc., which may cause the functional layer 42 to fail. At the same time, the encapsulation layer 44 may also isolate the liquid crystal layer 41 from the functional layer 42 to prevent the liquid crystal from intruding into the functional layer 42 of the OLED display panel 200. The second array substrate 201 of the OLED display panel 200 is arranged around the first array substrate 101 of the liquid crystal display panel 100, and the functional layer 42, the cathode electrode layer 43 and the encapsulation layer 44 of the OLED display panel 200 are arranged around the liquid crystal layer 41.

[0050] Furthermore, the counter substrate 50 is covered on the side of the liquid crystal layer 41 away from the substrate 10 to form a liquid crystal accommodating cavity together with the first array substrate 101 and the OLED display panel 200 to encapsulate the liquid crystal in the accommodating cavity.

[0051] Specifically, the counter substrate 50 includes a cover plate 51, a common electrode layer 53 and a color filter layer 52. The color filter layer 52 is disposed on a side of the cover plate 51 close to the liquid crystal layer 41, and is used to convert light into color light of corresponding colors to achieve full-color picture display; the common electrode layer 53 is disposed on a side of the color filter layer 52 close to the liquid crystal layer 41, and is used to form a corresponding electric field with the pixel electrode 221 in the first array substrate 101, so as to deflect the liquid crystal molecules. In other embodiments, the common electrode layer 53 may also be disposed in the first array substrate 101 to form a horizontal electric field with the pixel electrode 221.

[0052] Specifically, the common electrode layer 53 in the substrate 50 is electrically connected to the cathode electrode layer 43 in the OLED display panel 200, so as to supply power to the cathode electrode layer 43 and the common electrode layer 53, which is conducive to the simplified design of the power supply wiring. Specifically, the cathode electrode layer 43 can be electrically connected to the common electrode layer 53 through a conductive structure, such as being electrically connected through a conductive via and a conductive wiring, or being electrically connected through a conductive structure such as a conductive gold ball, which can be specifically set according to actual conditions.

[0053] Specifically, the counter substrate 50 is also covered on the OLED display panel 200 to keep the surfaces of the liquid crystal display panel 100 and the OLED display panel 200 flat, to avoid problems such as picture deformation at the junction of the display areas of the OLED display panel 200 and the liquid crystal display panel 100 when the OLED display panel 200 and the liquid crystal display panel 100 display the picture together; it can also isolate the OLED display panel 200 from the external environment to prevent external water, oxygen and dust from entering. At the same time, the OLED display panel 200 can also share the color filter layer 52 of the counter substrate 50 to improve the color saturation of the picture and enhance the picture display effect.

[0054] Furthermore, the counter substrate 50 further includes an alignment layer 54, which is disposed on a side of the common electrode layer 53 close to the liquid crystal layer 41, and is used to pre-align the liquid crystal. The liquid crystal display panel 100 further includes a first polarizing layer 55 and a second polarizing layer 13, wherein the first polarizing layer 55 is disposed on a surface of the counter substrate 50 away from the liquid crystal layer 41, and the second polarizing layer 13 is disposed on a surface of the substrate 10 away from the liquid crystal layer 41 or in the backlight assembly 300, so as to control the polarization direction of the light and control whether the light is transmitted, thereby displaying a bright state or a dark state. The first polarizing layer 55 and the second polarizing layer 13 are both disposed corresponding to the liquid crystal layer 41 and the first array substrate 101, that is, the first polarizing layer 55 and the second polarizing layer 13 overlap with the liquid crystal layer 41 in a direction perpendicular to the liquid crystal layer 41, so as to avoid the first polarizing layer 55 and the second polarizing layer 13 extending to the display area of ​​the OLED display panel 200 and affecting its display. At the same time, a transparent coating layer 56 is further provided on the surface of the substrate 50 away from the liquid crystal layer 41. The transparent coating layer 56 is provided around the first polarizing layer 55 and has the same thickness as the first polarizing layer 55, so that the first polarizing layer 55 and the upper surface of the transparent coating layer are in the same horizontal plane, so that the display surface of the OLED display panel 200 and the display surface of the liquid crystal display panel 100 are kept in the same horizontal plane, so as to ensure the continuity of the picture when the picture is displayed together, avoid deformation or breakage of the picture, improve the imaging restoration capability, and improve the display effect.

[0055] In this embodiment, the ratio of the width of the OLED display panel 200 to the maximum width of the display device 1000 is less than one eighth, which can not only ensure that the light leakage degree of the liquid crystal display panel 100 is within the allowable range of specifications, but also reduce the area ratio of the OLED display panel 200 to the entire display device 1000, so as to reduce the burn-in phenomenon and flicker problem of the OLED display panel 200, thereby improving the service life of the product.

[0056] In the present embodiment, the first driving circuit layer 20 and the second driving circuit layer 30 are prepared on the same substrate 10, that is, the first array substrate 101 and the second array substrate 201 are an integrated structure; further, the OLED display panel 200 and the liquid crystal display panel 100 share a counter substrate 50, so that the OLED display panel 200 can be arranged around the liquid crystal display panel 100, and the liquid crystal display surface 100 does not need to be provided with a frame glue, and the liquid crystal layer 41 can be directly encapsulated, so that the liquid crystal display panel 100 and the OLED display panel 200 become an integrated structure, and there is no joint seam between the liquid crystal display panel 100 and the OLED display panel 200, which can effectively restore the picture.

[0057] See also Figure 4 and Figure 5 , Figure 4 yes Figure 3 The driving structure principle diagram of the display device provided in the embodiment, Figure 5 yes Figure 4 Schematic diagram of the equivalent driving circuit structure in the embodiment. In the present embodiment, the first driving circuit layer 20 and the second driving circuit layer 30 share the scan line Scan and the data line Data. Specifically, the first substrate and the second substrate are prepared and formed in the same process, that is, the first driving circuit layer 20 and the second driving circuit layer 30 are prepared together on the substrate 10, which can not only simplify the process of the array substrate, but also can prepare the scan line Scan and the data line Data in the first driving circuit layer 20 and the second driving circuit layer 30 together, so that the first driving circuit layer 20 and the second driving circuit layer 30 share the scan line Scan and the data line Data.

[0058] Specifically, in the first display area 11, the first driving circuit layer 20 includes a plurality of first sub-pixel driving circuits 211; in the second display area 12, the second driving circuit includes a plurality of second sub-pixel driving circuits 311. In the entire display area, the first sub-pixel driving circuits 211 and the second sub-pixel driving circuits 311 are arranged in a matrix, the scan lines Scan extend along the row direction of the matrix, the sub-pixel driving circuits in the same row are electrically connected to the same scan line Scan, the data lines Data extend along the column direction of the matrix, and the sub-pixel driving circuits in the same column are electrically connected to the same data line Data, so that when the liquid crystal display panel 100 and the OLED display panel 200 need to display the screen together, the synchronization signal can be used to simultaneously input the data signal to the liquid crystal sub-pixel driving circuit (the first sub-pixel driving circuit 211) and the OLED sub-pixel driving circuit (the second sub-pixel driving circuit 311), thereby synchronously driving the liquid crystal display panel 100 and the OLED display panel 200 to display the screen together. It should be noted that the sub-pixel driving circuits described here include the first sub-pixel driving circuit 211 and the second sub-pixel driving circuit 311.

[0059] like Figure 5 As shown, a plurality of first sub-pixel driving circuits 211 are disposed in the first display area 11, and a plurality of second sub-pixel driving circuits 311 are disposed in the second display area 12. Since the response rate of OLED is faster than that of conventional liquid crystal, and can even reach one thousand times of the response rate of liquid crystal, its response time can reach 0.001ms. Therefore, in this embodiment, the OLED display panel 200 and the liquid crystal display panel 100 can be synchronously driven according to the width ratio of the OLED display panel 200.

[0060] Specifically, in the present embodiment, the matrix formed by the sub-pixel driving circuit is defined as an m×n matrix, the first direction X is defined as the arrangement direction from the first row to the last row of the matrix, that is, the first direction X is the column direction of the matrix, and the second direction Y is defined as the arrangement direction from the first column to the last column of the matrix, that is, the second direction Y is the row direction of the matrix. For example, according to the width ratio 2i / m of the display area of ​​the OLED display panel 200 and the display device 1000 in the first direction X, it can be obtained that the 1st row to the i-th row of the sub-pixel driving circuit matrix is ​​the second sub-pixel driving circuit 311, the (i+1)th row to the (mi)th row is the first sub-pixel driving circuit 211, and the (m-i+1)th row to the mth row is the second sub-pixel driving circuit 311, and the data line Data transmits the effective display data signal of the OLED for the 1st row to the i-th row, transmits the effective display data signal of the liquid crystal driving circuit for the (i+1)th row to the (mi)th row, and transmits the effective display data signal of the OLED for the (m-i+1)th row to the mth row, wherein m and i are both positive integers.

[0061] Similarly, according to the width ratio 2j / n of the display area of ​​the OLED display panel 200 and the display device 1000 in the second direction Y, it can be obtained that the 1st column to the jth row of the sub-pixel driving circuit matrix is ​​the second sub-pixel driving circuit 311, the (j+1)th column to the (nj)th column is the first sub-pixel driving circuit 211, the (n-j+1)th column to the nth column is the second sub-pixel driving circuit 311, and the data line Data transmits the effective display data signal of the OLED for the 1st column to the jth column, transmits the effective display data signal of the liquid crystal driving circuit for the (j+1)th column to the (nj)th column, and transmits the effective display data signal of the OLED for the (n-j+1)th column to the nth column, wherein j and n are both positive integers.

[0062] As described above, the first sub-pixel driving circuit 211 and the second sub-pixel driving circuit 311 share the scan line Scan and the data line Data. According to the width ratio of the OLED display panel 200 in the first direction X, the data line Data transmits a corresponding data signal to each row of the sub-pixel driving circuit. According to the width ratio of the OLED display panel 200 in the second direction Y, the data line Data transmits a corresponding data signal to each column of sub-pixel data, thereby realizing that the OLED display panel 200 and the liquid crystal display panel 100 jointly complete the picture display.

[0063] See also Figure 6 , Figure 63 is a schematic diagram of the structure of the scan lines and data lines of the display device provided in the third embodiment of the present application. In this embodiment, the scan lines Scan of the second drive circuit layer 30 correspond one-to-one to the scan lines Scan of the first drive circuit layer 20 and are electrically connected, and the data lines Data of the second drive circuit layer 30 correspond one-to-one to the data lines Data of the first drive circuit layer 20 and are electrically connected.

[0064] For example, the first array substrate 101 and the second array substrate 201 can be prepared by two separate processes. The first array substrate 101 is first prepared to form the first drive circuit layer 20, and the first drive circuit layer 20 includes the first sub-pixel drive circuit 211, the first scan line Scan1 and the first data line Data1; and then the second array substrate 201 is prepared to form the second drive circuit layer 30, and the second drive circuit layer 30 includes the second sub-pixel drive circuit 311, the second scan line Scan2 and the second data line Data2; wherein the first scan line Scan1 and the second scan line Scan2 correspond to each other and are electrically connected to form a complete scan line Scan, and the first data line Data1 and the second data line Data2 correspond to each other and are electrically connected to form a complete data line Data. Specifically, the first scan line Scan1 and the second scan line Scan2 can be electrically connected through a conductive connection structure such as a wiring extension structure and / or a conductive via, and the first data line Data1 and the second data line Data2 can also be electrically connected through a conductive connection structure such as a wiring extension structure and / or a conductive via.

[0065] Alternatively, the first array substrate 101 and the second array substrate 201 can be prepared in the same process, and a first driving circuit layer 20 is formed in the first display area 11, and a second driving circuit layer 30 is formed in the second display area 12, and a first sub-pixel driving circuit 211, a first scan line Scan1 and a first data line Data1 are formed in the first driving layer, and a second sub-pixel driving circuit 311, a second scan line Scan2 and a second data line Data2 are formed in the second driving circuit layer 30; wherein, the first scan line Scan1 corresponds to the second scan line Scan2 one-to-one and are electrically connected, and the first data line Data1 corresponds to the second data line Data2 one-to-one and are electrically connected, and specifically, the electrical connection can be achieved through a conductive connection structure such as a routing extension structure and / or a conductive via.

[0066] By making the first scan line Scan1 correspond to and electrically connect the second scan line Scan2 one by one, and making the first data line Data1 correspond to and electrically connect the second data line Data2 one by one, the first sub-pixel driving circuit 211 and the second sub-pixel driving circuit 311 can be driven synchronously, so that the OLED display panel 200 and the liquid crystal display panel 100 can display the picture together; at the same time, by controlling the scan signal and the data signal, it is also possible to realize that only the liquid crystal display panel 100 displays the image, or only the OLED display panel 200 displays the image; and in this embodiment, after the scan line Scan is turned on, the data line Data transmits the corresponding valid data signal to the first sub-pixel driving circuit 211 and the second sub-pixel driving circuit 311 according to the width ratio of the OLED display panel 200 to the entire display area in the first direction X and the width ratio in the second direction Y, so that both the OLED display panel 200 and the liquid crystal display panel 100 can receive data information matching themselves, thereby improving the imaging restoration capability and the display effect.

[0067] See also Figure 7 , Figure 7 1 is a schematic diagram of a cross-sectional structure of a display device provided in the fourth embodiment of the present application. In this embodiment, the liquid crystal display panel 100 includes a first array substrate 101, the first array substrate 101 includes a first substrate 14 and a first drive circuit layer 20; the OLED display panel 200 includes a second array substrate 201, the second array substrate 201 includes a second substrate 15 and a second drive circuit layer 30; the second array substrate 201 and the first drive circuit layer 20 are arranged on the first substrate 14, and the second array substrate 201 is arranged around the first drive circuit layer 20.

[0068] Specifically, the first array substrate 101 and the second substrate can be prepared separately first, and then the second array substrate 201 is set on the first substrate 14; that is, the first substrate 14 is divided into a first display area 11 and a second display area 12, wherein the first display area 11 corresponds to the area of ​​the liquid crystal display panel 100, and the second display area 12 corresponds to the area of ​​the OLED display panel 200, and a first driving circuit layer 20 is prepared in the first display area 11 of the first substrate 14 to form the first array substrate 101; a second driving circuit layer is prepared on the second substrate 15 to form the second array substrate 201, and then the second array substrate 201 is set on the second display area 12 of the first substrate 14, and the first array substrate 101 is arranged around the first driving circuit layer 20.

[0069] Alternatively, the first substrate 14 may be first divided into a first display area 11 and a second display area 12 according to the regional design of the liquid crystal display panel 100 and the OLED display panel 200, and the first substrate 14 may be first fixedly disposed in the second display area 12, and then the first drive circuit layer 20 and the second drive circuit layer 30 may be prepared on the first substrate 14 and the second substrate 15 respectively. The first drive circuit layer 20 and the second drive circuit layer may be prepared together in the same process, so that the first drive circuit layer 20 and the second drive circuit layer 30 can share the scan line Scan and the data line Data, or it may be beneficial to realize that the first scan line Scan1 in the first drive circuit layer 20 corresponds to the second scan line Scan2 in the second drive circuit layer 30 and is electrically connected, so that the first data line Data1 in the first drive circuit layer 20 corresponds to the second data line Data2 in the second drive circuit layer 30 and is electrically connected.

[0070] It should be noted that in the embodiment of the present application, the OLED display panel 200 and the liquid crystal display panel 100 are seamlessly spliced, and the liquid crystal display panel 100 has no frame glue; the specific settings of the seamless splicing and the frameless glue are the same or similar to the setting structures and methods involved in the above embodiments, and can achieve the same technical effects. Please refer to the above specific introduction for details.

[0071] The present application enables the display device 1000 to include a liquid crystal display panel 100 and an OLED display panel 200, and the OLED display panel 200 is arranged around the liquid crystal display panel 100, so that the OLED display panel 200 replaces the outer ring light source of the traditional liquid crystal panel, thereby solving the problem of light leakage at the border between the liquid crystal display panel 100 and the backlight assembly 300 and improving the imaging contrast; at the same time, by only arranging the OLED display panel 200 around the liquid crystal display panel 100, compared with a pure OLED panel, the display panel burn-in rate (pixel aging rate) and flickering problems are effectively reduced, and the power consumption of the display device 1000 can be effectively reduced, and the brightness is higher, thereby increasing the standby time of the display device 1000.

[0072] The above are only implementation methods of the present application, and are not intended to limit the patent protection scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display device, comprising: Liquid crystal display panel; A backlight assembly, disposed on the back of the liquid crystal display panel; Characterized in that the display device further comprises an OLED display panel, which is arranged around the liquid crystal display panel; The liquid crystal display panel comprises a first array substrate, a liquid crystal layer and an opposing substrate, wherein the first array substrate comprises a first driving circuit layer; the OLED display panel comprises a second array substrate, a functional layer, a cathode electrode layer and an encapsulation layer, wherein the second array substrate comprises a second driving circuit layer; The first array substrate and the second array substrate share the same substrate; or the first array substrate includes a first substrate, the second array substrate includes a second substrate, the second array substrate and the first driving circuit layer are arranged on the first substrate, and the second array substrate is arranged around the first driving circuit layer; The encapsulation layer is located at the outermost layer of the OLED display panel, and is used to encapsulate the second array substrate, the functional layer and the cathode electrode layer, and the encapsulation layer separates the liquid crystal layer from the functional layer; the counter substrate is covered on the side of the liquid crystal layer away from the first substrate, and covers the first array substrate, the liquid crystal layer and the OLED display panel, so as to form a liquid crystal accommodating cavity together with the first array substrate and the OLED display panel, and encapsulate the liquid crystal in the liquid crystal accommodating cavity; the OLED display panel is in direct contact with the liquid crystal display panel, and the liquid crystal display panel has no frame glue; The first driving circuit layer includes a plurality of first sub-pixel driving circuits, the second driving circuit layer includes a plurality of second sub-pixel driving circuits, the first sub-pixel driving circuits and the second sub-pixel driving circuits are arranged in a matrix; a first direction is defined as a column direction of the matrix, and a second direction is defined as a row direction of the matrix; The scan lines of the second drive circuit layer correspond to and are electrically connected to the scan lines of the first drive circuit layer in one-to-one correspondence, and the data lines of the second drive circuit layer correspond to and are electrically connected to the data lines of the first drive circuit layer in one-to-one correspondence; or, the first drive circuit layer and the second drive circuit layer share scan lines and data lines; Wherein, according to the width ratio of the OLED display panel and the display area of ​​the display device in the first direction, the row position of the second sub-pixel driving circuit in the matrix and the row position of the first sub-pixel driving circuit in the matrix are obtained, and the data line transmits effective display data signals to the second sub-pixel driving circuit and the first sub-pixel driving circuit respectively according to the row positions of the two; According to the width ratio of the OLED display panel and the display area of ​​the display device in the second direction, the column position of the second sub-pixel driving circuit in the matrix and the column position of the first sub-pixel driving circuit in the matrix are obtained, and the data line transmits effective display data signals to the second sub-pixel driving circuit and the first sub-pixel driving circuit respectively according to the column positions of the two.

2. The display device according to claim 1, characterized in that The ratio of the width of the OLED display panel to the maximum width of the display device is less than one eighth.

3. The display device according to claim 1, characterized in that The liquid crystal display panel further comprises an opposing substrate, wherein the opposing substrate comprises a cover plate, a common electrode layer and a color filter layer; The second array substrate is arranged around the first array substrate, the functional layer, the cathode electrode layer and the encapsulation layer are arranged around the liquid crystal layer, and the counter substrate covers the first array substrate, the liquid crystal layer, and the OLED display panel.

4. The display device according to claim 3, characterized in that The cathode electrode layer is electrically connected to the common electrode layer.

5. The display device according to claim 3, characterized in that: A first polarizing layer and a transparent coating surrounding the first polarizing layer are also provided on the surface of the counter substrate away from the liquid crystal layer. The first polarizing layer is provided corresponding to the liquid crystal layer and the first array substrate, and the transparent coating is provided corresponding to the OLED display panel.

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