Display panels and display devices
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2026-08-14
Smart Images
Figure 2026527422000001_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the display field, and particularly to a display panel and a display device.
Background Art
[0002] A transparent display device refers to a display device that can provide a transparent display state in which a user can observe the scenery behind it, and is often seen in in-vehicle applications, show windows, vending machines, etc. The transparent display device has a display area and a transparent area. Among them, the display area provides a display screen that can be observed by the user, and the transparent area presents a transparent state so that the user can observe the scenery behind. Inside the display area, a pixel structure for emitting a light beam toward the display surface of the transparent display device and further providing a display screen is installed. However, in conventional transparent display devices, there are differences in the transmittance between the display area and the non-display area.
Summary of the Invention
Problems to be Solved by the Invention
[0003] The present disclosure provides a display panel and a display device, and improves the technical problem that there are differences in the transmittance between the display area and the non-display area in an existing display panel.
[0004] In order to solve the above technical problems, the technical solutions provided by the present disclosure are as follows.
Means for Solving the Problems
[0005] The present disclosure provides a display panel, and the display panel includes
[0006] a display part and a driving part. The display part includes a plurality of display units arranged along a first direction and a second direction. Each display unit includes a first circuit part and a first light-transmitting part provided on one side of the first circuit part. The first circuit part includes at least one first light-emitting element and a pixel circuit electrically connected to any one of the first light-emitting elements.
[0007] The drive unit is provided on at least one side of the display unit, and the drive unit includes a plurality of drive units arranged along the first direction and the second direction, each drive unit includes a second circuit section and a second light-transmitting section provided on one side of the second circuit section, and the second circuit section includes a gate drive circuit that outputs a control signal to the pixel circuit,
[0008] The ratio of the area of the first light-transmitting portion to the area of the corresponding display unit is equal to the ratio of the area of the second light-transmitting portion to the area of the corresponding drive unit.
[0009] This disclosure provides a display device, the display device comprising a panel area and a non-panel area provided on at least one side of the panel area,
[0010] Second base and,
[0011] A sealing cover plate provided relative to the second base,
[0012] The display panel is provided between the second base and the sealing cover plate and within the panel area. [Brief explanation of the drawing]
[0013] [Figure 1] This is a structural diagram of the first type of display panel in this disclosure.
[0014] [Figure 2] This is a structural diagram of two adjacent display units in Figure 1.
[0015] [Figure 3] This is a cross-sectional view of type 1 of section AA in Figure 2.
[0016] [Figure 4] This is a type 2 cross-sectional view of section AA in Figure 2.
[0017] [Figure 5] It is a first type of sectional view of cross-section BB in FIG. 2.
[0018] [Figure 6] It is a second type of sectional view of cross-section BB in FIG. 2.
[0019] [Figure 7] It is a structural diagram of two adjacent drive units in FIG. 1.
[0020] [Figure 8] It is a second type of structural diagram of the display panel of the present disclosure.
[0021] [Figure 9A] It is a schematic structural diagram of the display panel at different positions in the display device of the present disclosure. [Figure 9B] It is a schematic structural diagram of the display panel at different positions in the display device of the present disclosure. [Figure 9C] It is a schematic structural diagram of the display panel at different positions in the display device of the present disclosure. [Figure 9D] It is a schematic structural diagram of the display panel at different positions in the display device of the present disclosure. [Figure 9E] It is a schematic structural diagram of the display panel at different positions in the display device of the present disclosure.
[0022] [Figure 10] It is a first type of sectional view of cross-section CC in FIG. 9E.
[0023] [Figure 11] It is a second type of sectional view of cross-section CC in FIG. 9E.
[0024] [Figure 12] It is a third type of sectional view of cross-section CC in FIG. 9E.
[0025] [Figure 13] It is another schematic diagram of the display device of the present disclosure.
[0026] [Figure 14] This is a cross-sectional view of type 1 of section DD in Figure 9D.
[0027] [Figure 15] This is the second type of cross-sectional view of section DD in Figure 9D.
[0028] [Figure 16] This is a third type cross-sectional view of section DD in Figure 9D. [Modes for carrying out the invention]
[0029] The technical methods described herein will be clearly and completely explained below in conjunction with the drawings of the embodiments of this disclosure. Clearly, the embodiments described are only a selection of embodiments of this disclosure, not all embodiments. All other embodiments that can be obtained without creative work by a person skilled in the art based on the embodiments of this disclosure are within the scope of this disclosure. It should also be understood that the specific embodiments described herein are for illustrative and interpretive purposes only and do not limit this disclosure.
[0030] In the description of this disclosure, the directions or positional relationships indicated by terms such as "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "top," "bottom," "inside," and "outside" are based on the directions or positional relationships shown in the drawings and are intended to facilitate the explanation and simplify the description, and do not indicate that the device or element being indicated or implied has a specific orientation or must be configured and operated in a specific orientation, and should therefore not be construed as a limitation on this disclosure.
[0031] Furthermore, the terms “First” and “Second” are for descriptive purposes only and do not indicate or imply relative importance, nor do they indicate the number of technical features implicitly represented. Thus, features designated as “First” or “Second” may explicitly or implicitly include one or more features. In this disclosure, unless otherwise clearly and specifically limited, “multiple” means two or more, and “at least one” means one, two, or more.
[0032] In conventional transparent display devices, a drive circuit is typically installed in all non-display areas, resulting in a difference in transmittance between the display and non-display areas. This causes noticeable dark areas in the non-display areas, leading to poor display quality in the transparent display device. This disclosure provides a display panel and a display device based on the above technical problems.
[0033] Referring to Figures 1 to 16, this disclosure provides a display panel 100 which includes a display unit 10 and a drive unit 20 provided on at least one side of the display unit 10. For example, in the structure of Figure 1, the display panel 100 includes two drive units 20, and the display unit 10 is provided between the two drive units 20.
[0034] In this embodiment, the display unit 10 may include a plurality of display units 110 arranged along a first direction and a second direction, each display unit 110 including a first circuit section 111 and a first light-transmitting section 112 provided on one side of the first circuit section 111, and the first circuit section 111 includes a first light-emitting element D1 and a pixel circuit electrically connected to the first light-emitting element D1.
[0035] In this embodiment, the drive unit 20 may include a plurality of drive units 210 arranged along a first direction and a second direction, each drive unit 210 including a second circuit section 211 and a second light-transmitting section 212 provided on one side of the second circuit section 211, the second circuit section 211 including a gate drive circuit that outputs a control signal to the pixel circuit.
[0036] In this embodiment, the ratio of the area of the first light-transmitting section 112 to the area of the corresponding display unit 110 is equal to the ratio of the area of the second light-transmitting section 212 to the area of the corresponding drive unit 210.
[0037] This disclosure provides a first light-transmitting section 112 within the display section 10 and a second light-transmitting section 212 within the drive section 20. By ensuring that the area ratio of the first light-transmitting section 112 within the display unit 110 is the same as the area ratio of the second light-transmitting section 212 within the drive section 210, the light transmittance in the display section 10 and the light transmittance in the drive section 20 become the same, thereby improving the technical problem in existing display panels 100 where there is a difference in transmittance between the display area and the non-display area.
[0038] The first light-emitting element D1 may be an organic light-emitting diode, a MicroLED, or a MiniLED. In the following embodiment, an example in which the first light-emitting element D1 is a MicroLED will be described.
[0039] Furthermore, one or more first light-emitting elements D1 may be provided in one display unit 110 of this disclosure. For example, in the structure of Figure 1, each first circuit section 111 may include three first light-emitting elements D1, and the three first light-emitting elements D1 are arranged along a first direction X. The light-emitting colors of the three first light-emitting elements D1 are each one different from each other, selected from red, green, and blue.
[0040] Furthermore, the angle between the first direction and the second direction may be greater than 0 degrees and 90 degrees or less. In this embodiment, the first direction may be the X direction, the second direction may be the Y direction, and the angle between the first direction X and the second direction Y may be 90 degrees.
[0041] Furthermore, "equal" in this disclosure can mean absolutely equal, and at the same time, process errors exist in the production process, making it impossible to guarantee absolute equality. Therefore, the existence of errors or fluctuations in the manufacturing and assembly process can be tolerated, and "equal" in this disclosure can mean approximately equal.
[0042] Now, I will explain the technical proposal of this disclosure by linking it to specific examples.
[0043] Referring to Figure 1, a plurality of display units 110 are formed in an array in a first direction X and a second direction Y, each display unit 110 includes one first circuit section 111 and one first light-transmitting section 112, and within one display unit 110, the first circuit section 111 and the first light-transmitting section 112 are arranged along the second direction Y. In the first direction X, the first circuit sections 111 of two display units 110 are installed adjacent to each other, and the multiple first circuit sections 111 constitute one first line row in the first direction X, and the multiple first light-transmitting sections 112 constitute one first light-transmitting row in the first direction X, and the multiple first line rows and the multiple first light-transmitting rows are arranged with gaps in the second direction Y.
[0044] Referring to Figure 1, a plurality of drive units 210 are formed in an array in a first direction X and a second direction Y, each drive unit 210 includes one second circuit section 211 and one second light-transmitting section 212, and within one drive unit 210, the second circuit section 211 and the second light-transmitting section 212 are arranged along the second direction Y. In the first direction X, the second circuit sections 211 of two drive units 210 are installed adjacent to each other, and the second light-transmitting sections 212 of two drive units 210 are installed adjacent to each other, the plurality of second circuit sections 211 constitute one second line row in the first direction X, the plurality of second light-transmitting sections 212 constitute one second light-transmitting row in the first direction X, and the plurality of second line rows and the plurality of second light-transmitting rows are arranged with gaps in the second direction Y.
[0045] Referring to Figure 1, one first line row and one second line row are located in the same row, and one first translucent row and one second translucent row are located in the same row. That is, in the multiple display units 110 and multiple drive units 210 in the first direction X, multiple first circuit sections 111 and multiple second circuit sections 211 are arranged sequentially along the first direction X, and multiple first translucent sections 112 and multiple second translucent sections 212 are arranged sequentially along the first direction X.
[0046] In this embodiment, the area of one display unit 110 is equal to the area of one drive unit 210, the area of the first light-transmitting section 112 is equal to the area of the second light-transmitting section 212, and the area of one first circuit section 111 is equal to the area of one second circuit section 211. That is, the length and width of the first light-transmitting section 112 in this disclosure may be equal to the length and width of the second light-transmitting section 212, and the length and width of one first circuit section 111 may be equal to the length and width of one second circuit section 211.
[0047] In this embodiment, the dimensions of the first circuit section 111 and the first light-transmitting section 112 in the display unit 110 are equal to those of the corresponding second circuit section 211 and the second light-transmitting section 212 in the drive unit 210. As a result, the ratio of the area of the light-transmitting regions in the display section 10 and the drive unit 20 within the corresponding units becomes equal, so the transmittance of the display section 10 and the drive unit 20 becomes equal or close, improving the technical problems of display defects in transparent display devices.
[0048] Note that the equal area of the display unit 110 and the area of the drive unit 210 is one embodiment of this disclosure, and the areas of the display unit 110 and the drive unit 210 do not necessarily have to be equal. It is sufficient that the ratio of the area of the first light-transmitting portion 112 within the display unit 110 and the ratio of the area of the second light-transmitting portion 212 within the drive unit 210 are equal or close to each other.
[0049] Referring to Figure 2, each display unit 110 is provided with three first light-emitting elements D1 and three pixel circuits connected to the corresponding first light-emitting elements D1, and the three pixel circuits constitute the first circuit section 111. In this embodiment, the structure of the three pixel circuits may be the same; for example, the pixel circuits are x1 T x2 The circuit structure is C, where X1 may be an integer from 2 to 10, and X2 may be an integer from 1 to 4, but this disclosure does not specifically limit it.
[0050] Referring to Figure 3, the first circuit section 111 may include a first base 113 and an array layer 114 located on the first base 113. The material of the first base 113 may be glass, quartz, or polyimide.
[0051] Referring to Figure 3, the array layer 114 may include multiple thin-film transistors. The thin-film transistors may be classified into etching-blocking type, back-channel etching type, or structures such as bottom-gate thin-film transistors and top-gate thin-film transistors based on the position of the gate and active layer 114C. For example, a bottom-gate thin-film transistor may include a buffer layer 114H located on a first base 113, a gate layer 114A provided on the buffer layer 114H, a gate insulating layer 114B located on the gate layer 114A, an active layer 114C located on the gate insulating layer 114B, an inter-insulating layer 114G located on the active layer 114C, a source-drain electrode layer 114D provided on the inter-insulating layer 114G, a flat layer 114E located on the source-drain electrode layer 114D, a pixel electrode layer 114F located on the flat layer 114E, and a first light-emitting element D1 located on the pixel electrode layer 114F, the first light-emitting element D1 and the pixel electrode layer 114F being electrically connected, and in the structure of Figure 3, the array layer 114 of this disclosure is provided with three conductive layers and four insulating layers.
[0052] Alternatively, referring to Figure 4, a bottom-gate thin-film transistor may include a buffer layer 114H located on a first base 113, a gate layer 114A provided on the buffer layer 114H, a gate insulating layer 114B located on the gate layer 114A, an active layer 114C located on the gate insulating layer 114B, an inter-insulating layer 114G located on the active layer 114C, a source-drain pole layer 114D provided on the inter-insulating layer 114G, and a first light-emitting element D1 located on the source-drain pole layer 114D, the source-drain pole layer 114D may include binding terminals, the first light-emitting element D1 and the binding terminals in the source-drain pole layer 114D are electrically connected, and in the structure of Figure 4, the array layer 114 of this disclosure is provided with two conductive layers and three insulating layers.
[0053] In this embodiment, since the metal lines in the display unit 10 are concentrated in the first circuit unit 111, the array layer 114 of this disclosure may be provided with four or more conductive layers in order to avoid short circuits in the lines of the same layer. For example, in the structures shown in Figures 5 and 6, the array layer 114 of this disclosure may be provided with four conductive layers and five insulating layers.
[0054] The multiple conductive layers of this disclosure may include a metal film layer, but at the same time, this metal film layer does not overlap with the first light-transmitting portion 112, that is, no metal film layer is provided within the first light-transmitting portion 112. Similarly, no metal film layer is provided within the second light-transmitting portion 212, and only insulating film layers are present in the first light-transmitting portion 112 and the second light-transmitting portion 212.
[0055] In this embodiment, the first light-transmitting portion 112 includes at least one insulating layer, and the number of insulating layers in the first light-transmitting portion 112 is less than or equal to the number of insulating layers in the first circuit portion 111.
[0056] For example, in the structure shown in Figure 5, both the first light-transmitting portion 112 and the first circuit portion 111 include a first insulating layer 116A, a second insulating layer 116B, a third insulating layer 116C, a fourth insulating layer 116D, and a fifth insulating layer 116E provided on the first base 113, the number of insulating layers in the first light-transmitting portion 112 and the first circuit portion 111 are equal, and the first insulating layer 116A, the second insulating layer 116B, the third insulating layer 116C, the fourth insulating layer 116D, and the fifth insulating layer 116E are all made of transparent insulating material, and the five insulating layers in the first light-transmitting portion 112 and the corresponding insulating layers in the first circuit portion 111 may be formed using the same process.
[0057] For example, in the structure shown in Figure 6, the first circuit section 111 includes a first insulating layer 116A, a second insulating layer 116B, a third insulating layer 116C, a fourth insulating layer 116D, and a fifth insulating layer 116E provided on the first base 113, and the first light-transmitting section 112 includes a first insulating layer 116A provided on the first base 113, the number of insulating layers in the first light-transmitting section 112 is less than the number of insulating layers in the first circuit section 111, and the first insulating layer 116A, the second insulating layer 116B, the third insulating layer 116C, the fourth insulating layer 116D, and the fifth insulating layer 116E are all made of transparent insulating material, and the first insulating layer 116A in the first light-transmitting section 112 and the first insulating layer 116A in the first circuit section 111 may be formed using the same process.
[0058] Although the first insulating layer 116A, the second insulating layer 116B, the third insulating layer 116C, the fourth insulating layer 116D, and the fifth insulating layer 116E are all transparent insulating materials, their transmittance does not reach 100%. Therefore, in order to increase the transmittance of the first light-transmitting section 112, in the structure shown in Figure 6, the second insulating layer 116B, the third insulating layer 116C, the fourth insulating layer 116D, and the fifth insulating layer 116E within the first light-transmitting section 112 in Figure 5 are removed on the base shown in Figure 5. At the same time, since the first insulating layer 116A is in contact with the first base 113, removing the first insulating layer 116A may damage the first base 113. Therefore, the structure in Figure 6 may retain the first insulating layer 116A, or the thickness of the first insulating layer 116A in the first translucent portion 112 in Figure 6 may be less than the thickness of the first insulating layer 116A in the first circuit portion 111, i.e., only a portion of the first insulating layer 116A may be etched.
[0059] In this embodiment, at least one signal transmission line extending along a second direction Y may be provided between two adjacent display units 110. For example, in the structure shown in Figure 2, two first transmission lines 118 may be provided between two adjacent display units 110, and these first transmission lines 118 may be compensation signal lines, data lines, or other transmission lines.
[0060] Referring to Figures 5 and 6, the display panel 100 further includes protective glue 117, which is provided on the array layer 114, and the protective glue 117 covers the first light-emitting element D1 in the first circuit section 111 and the insulating layer in the first light-transmitting section 112. At the same time, in the structure of Figure 6, since the second insulating layer 116B to the fifth insulating layer 116E in the first light-transmitting section 112 has been removed, the protective glue 117 fills the space on the first insulating layer 116A in the first light-transmitting section 112, making the flatness of the film layers in the first circuit section 111 and the first light-transmitting section 112 the same.
[0061] Note that while the insulating layers in the first circuit section 111 and the first light-transmitting section 112 are all formed using the same process and have a uniform thickness, the thickness of the insulating layer in the same layer at different locations in Figures 5 and 6 differs. This is merely a schematic diagram.
[0062] Referring to Figure 7, each drive unit 210 is provided with three second light-emitting elements D2 and a gate drive circuit provided between the three second light-emitting elements D2 and the first base 113, and the gate drive circuit corresponding to the second light-emitting elements D2 is installed in an insulating manner.
[0063] In this embodiment, since the display unit 10 is provided with a plurality of first light-emitting elements D1, in order to ensure uniformity of the display panel 100, the present disclosure provides a plurality of second light-emitting elements D2 in the drive unit 20 as well. At the same time, the number density of the second light-emitting elements D2 and the number density of the first light-emitting elements D1 are the same, and the distribution density of the second light-emitting elements D2 in the drive unit 20 and the distribution density of the first light-emitting elements D1 in the display unit 10 are the same, thereby ensuring uniformity of the light-emitting elements in the display panel 100.
[0064] In this embodiment, the second circuit section 211 includes a gate drive circuit, and its internal wiring is relatively dense. Since there is no extra space to provide a pixel circuit that controls the emission of light from the second light-emitting element D2, the gate drive circuit and the second light-emitting element D2 are installed in isolation from each other.
[0065] In this embodiment, the structure of the second light-emitting element D2 may be the same as that of the first light-emitting element D1, and the light-emitting colors of the three second light-emitting elements D2 in one drive unit 210 are each one of red, green, and blue, which are different from each other. At the same time, since the second light-emitting elements D2 do not emit light, the light-emitting colors of all the second light-emitting elements D2 in this disclosure may be the same.
[0066] In this embodiment, because the number of transistors in the gate drive circuit is relatively large and the wiring is relatively complex, the present disclosure originally uses the space for wiring some of the gate drive circuits to install the second light-transmitting section 212. Therefore, the structure of the gate drive circuit can be rearranged by reducing the dimension of the gate drive circuit in the second direction Y while increasing the dimension in the first direction X. However, in the structure of Figure 7, the dimension of one second circuit section 211 in the first direction X does not satisfy the requirement for the dimension of the gate drive circuit in the first direction X. Therefore, the present disclosure can arrange the gate drive circuit using two or more second circuit sections 211. For example, in the structure of Figure 8, each class of gate drive circuit can occupy three second circuit sections 211 arranged along the first direction X, and different control signals are output from different gate drive circuits. Therefore, Figure 8 shows that two gate drive circuits each occupy three second circuit sections 211. Alternatively, six second circuit sections 211 arranged along the first direction X in Figure 8 can be occupied by the same single gate drive circuit.
[0067] In this embodiment, the gate drive circuit is x3 T x4 The circuit structure may be C, X3 may be an integer from 2 to 20, and X4 may be an integer from 1 to 4; this disclosure is not specifically limited.
[0068] In this embodiment, the film layer structure in the drive unit 20 may be the same as the film layer structure in the display unit 10. Specifically, the structures shown in Figures 3 to 6 can be referenced, and each of the same film layers can be formed using the same immersion process. This disclosure does not specifically limit the possibilities.
[0069] In the structure shown in Figure 7, at least one signal transmission line extending along a second direction Y can be provided between two adjacent drive units 210. For example, in the structure shown in Figure 2, two second transmission lines 218 can be provided between two adjacent drive units 210, and these second transmission lines 218 may be constant-voltage high-potential lines, constant-voltage low-potential lines, clock signal lines, or other transmission lines.
[0070] In conventional drive units 20, the width of the vertical transmission lines is usually relatively wide in order to reduce the impedance of the vertical wiring. However, since the layout of the drive unit 20 in this disclosure is the same as the layout of the display unit 10, there is not enough width to provide vertical wiring between two adjacent drive units 210. The conductive layer in this disclosure has multiple conductive layers, and each vertical wiring can be installed by stacking two or more conductive layers. In other words, by installing multiple conductive layers in parallel, the impedance of the vertical wiring is reduced.
[0071] Furthermore, since the second circuit section 211 in the drive unit 20 is a non-display area, it is not necessary to provide the second light-emitting element D2 in the drive unit 20 of this disclosure. Alternatively, the second light-emitting element D2 can be made to emit light by providing a pixel circuit in the display unit 10 that is electrically connected to the second light-emitting element D2.
[0072] Referring to Figures 5 and 6, in order to reduce the reflectivity of the conductive metal film layer, the first circuit section 111 of the present disclosure may further include a first light-shielding layer 119, which is provided between the first light-emitting element D1 and the array layer 114, and the orthogonal projection of the first light-shielding layer 119 onto the array layer 114 is located within the array layer 114. The first light-shielding layer 119 of the present disclosure completely shields the first circuit section 111, and the area of the first light-shielding layer 119 may be equal to the area of the first circuit section 111, thereby avoiding metallic reflection in the first circuit section 111. For similar reasons, a third light-shielding layer (not shown) may be provided in the second circuit section 211, which completely shields the second circuit section 211, and the area of the third light-shielding layer may be equal to the area of the second circuit section 211, thereby avoiding metallic reflection in the second circuit section 211.
[0073] In the display panel 100 of this disclosure, the ratio of the sum of the areas of the multiple first circuit sections 111 to the area of the display panel 100 is in the range of 0.1 to 0.5. That is, in the display panel 100 of this disclosure, the ratio of the sum of the areas used for light-emitting displays to the area of the display panel 100 is 10% to 50%, and the ratio of the sum of the areas of non-light-emitting displays to the area of the display panel 100 may be 50% to 90%.
[0074] Furthermore, since metal film layers are provided within the first circuit section 111 and the second circuit section 211, the light transmittance of the first circuit section 111 in this disclosure is smaller than that of the first light-transmitting section 112, and the light transmittance of the second circuit section 211 is smaller than that of the second light-transmitting section 212. At the same time, the installation of the first light-shielding layer 119 and the third light-shielding layer further reduces the light transmittance of the first circuit section 111 and the light transmittance of the second circuit section 211.
[0075] Referring to Figure 8, the display panel 100 further includes an electrostatic discharge section 30 provided between the display section 10 and the drive section 20, the electrostatic discharge section 30 includes a plurality of electrostatic discharge units 310, each electrostatic discharge unit 310 includes a third circuit section 311 and a third light-transmitting section 312, the third circuit section 311 includes an electrostatic protection element 311A for discharging static electricity. The ratio of the area of the third light-transmitting section 312 to the area of the corresponding electrostatic discharge unit 310 is equal to the ratio of the area of the second light-transmitting section 212 to the area of the corresponding drive unit 210.
[0076] In this embodiment, because the wiring of metal wires in the drive unit 20 and the display unit 10 is relatively dense, technical problems such as electrostatic discharge can easily occur in both the drive unit 20 and the display unit 10. By installing the electrostatic discharge unit 310 of this disclosure, electrostatic discharge in the drive unit 20 and / or the display unit 10 can be discharged, and technical problems such as damage to elements due to electrostatic discharge in the drive unit 20 and / or the display unit 10 can be avoided.
[0077] Figure 8 shows three electrostatic discharge sections 30, with each electrostatic discharge section 30 occupying one third circuit section. Simultaneously, the electrostatic discharge sections 30 in Figure 8 may also be wiring around the chip, grounding wires, or other wiring layouts.
[0078] Referring to Figures 9A to 9E, the display device 400 includes a panel area 400A and a non-panel area 400B located on at least one side of the panel area 400A. The panel area 400A is provided with the display panel 100 shown in Figure 1, while the non-panel area 400B is not provided with the display panel 100 shown in Figure 1, and is only a transparent structure.
[0079] In the structures shown in Figures 9A to 9E, the position of the panel area 400A may be located on the upper, lower, left, right, or central side of the display device 400; this disclosure does not impose any specific limitations.
[0080] Referring to the structures in Figures 10 and 11, the display device 400 includes a second base 410, a sealing cover plate 420 provided relative to the second base 410, and a display panel 100 provided between the second base 410 and the sealing cover plate 420.
[0081] In the structures shown in Figures 10 and 11, the display device 400 further includes a first adhesive 430 and a second adhesive 440 provided between the second base 410 and the sealing cover plate 420. For example, in Figure 10, the first adhesive 430 is provided between the display panel 100 and the second base 410, and the second adhesive 440 is provided between the second base 410 and the sealing cover plate 420, and covers one side of the display panel 100 away from the second base 410. In Figure 11, the first adhesive 430 is provided between the display panel 100 and the second base 410, and the first adhesive 430 is provided between the display panel 100 and the sealing cover plate 420, and the second adhesive 440 is located within the non-panel area 400B, and the second adhesive 440 is provided between the second base 410 and the sealing cover plate 420.
[0082] In the display device 400 of this disclosure, the first adhesive 430 may be transparent or opaque, the second adhesive 440 may be transparent, and the refractive indices of the first adhesive 430 and the second adhesive 440 may be equal or close. For example, the difference in refractive index of the adhesives may be 0.1 or less.
[0083] In this embodiment, since the second adhesive 440 is mainly installed in the non-panel area 400B and the first adhesive 430 is mainly installed in the panel area 400A, when bonding the display panel 100 between the second base 410 and the sealing cover plate 420, the first adhesive 430 may be a liquid adhesive, and the second adhesive 440 may be a liquid or solid adhesive. At the same time, since the second adhesive 440 is in the panel area 400A, which has a relatively large light-receiving area, and the first adhesive 430 is in the panel area 400A, which blocks some of the light rays in this area from being blocked by the display panel 100, the curing rate of the first adhesive 430 may be lower than that of the second adhesive 440.
[0084] In the structures shown in Figures 10 and 11, the display device 400 further includes a frame glue 480 provided between the second base 410 and the sealing cover plate 420, the frame glue 480 being installed along the outer circumference of the display device 400 to seal the display device 400.
[0085] Furthermore, in order to ensure that the transparency effect of the panel area 400A and the non-panel area 400B of the display device 400 is the same or similar, the light transmittance and reflectance of the panel area 400A and the non-panel area 400B must be the same or similar. Therefore, the number of light rays derived from a unit area of light-emitting surface in the panel area 400A is equal to the number of light rays derived from a unit area of light-emitting surface in the non-panel area 400B. In other words, the light rays reflected and transmitted from a unit area of light-emitting surface in the non-panel area 400B are reflected and transmitted from a unit area of light-emitting surface in the panel area 400A.
[0086] For example, regarding the adjustment of reflectance, refer to Figure 12, and using the structure in Figure 11 as an example, the display device 400 may further include a reflective adjustment layer 450 provided in the non-panel area 400B, the reflective adjustment layer 450 provided between the second base 410 and the sealing cover plate 420, and the reflectance of the reflective adjustment layer 450 is positively correlated with the reflectance of the display panel 100.
[0087] In the structure shown in Figure 11, in the non-panel region 400B, the interface between the second adhesive 440 and the sealing cover plate 420 has a first reflectance S1, the surface of the second base 410 away from the second adhesive 440 has a second reflectance S2, and the first reflectance S1 and the second reflectance S2 have a first-power product. Simultaneously, in the panel region 400A, the interface between the display panel 100 and the first adhesive 430 has a third reflectance S3, the surface of the second base 410 away from the second adhesive 440 has a fourth reflectance S4, and the third reflectance S3 and the fourth reflectance S4 have a second-power product. Finally, the reflective adjustment layer 450 has a fifth reflectance S5, and the quotient of the second-power product and the first-power product is the fifth reflectance S5, i.e., the fifth reflectance S5 is (S3*S4) / (S1*S2).
[0088] Note that both the second reflectance S2 and the fourth reflectance S4 are the reflectances of the surface of the second base 410 that is separated from the second adhesive 440, but since the reflectance is the result of reflection at multiple interfaces, the second reflectance S2 and the fourth reflectance S4 are not necessarily equal.
[0089] Note that the reflectance of each cross-section in Figure 12 includes the first reflection reduction layer 471 and the second reflection reduction layer 472, and since the reflectance S0 of the first reflection reduction layer 471 is the same in different areas, the above formula removes the reflectance S0.
[0090] With respect to transmittance, the light transmittance of the panel area 400A in this disclosure is equal to the light transmittance of the non-panel area 400B. For example, referring to Figure 13, the display device 400 further includes a second light-shielding layer 460 provided in the non-panel area 400B, the area of the second light-shielding layer 460 is smaller than the area of the non-panel area 400B, and the ratio of the area of the second light-shielding layer 460 to the area of the non-panel area 400B is equal to the ratio of the area of the first light-shielding layer 119 to the area of the corresponding display unit 110.
[0091] In the display panel 100, a first light-shielding layer 119 is provided on all first circuit sections 111, and a third light-shielding layer is provided on all second circuit sections 211. Therefore, the transmittance of the display panel 100 is the ratio of the area of the display panel 100 to the sum of the areas of the multiple first light-transmitting sections 112 and the multiple second light-transmitting sections 212. However, since the entire non-panel area 400B is a light-transmitting area, the transmittance of the non-panel area 400B and the transmittance of the panel area 400A are not equal, resulting in a certain difference in the display effect of different areas of the display device 400.
[0092] In this embodiment, the second light-shielding layer 460 may include a plurality of light-shielding strips 461, the plurality of light-shielding strips 461 extending along the first direction X and spaced apart along the second direction Y. For example, as shown in the structure of Figure 13, or the plurality of light-shielding strips 461 extending along the second direction Y and spaced apart along the first direction X. The installation of the second light-shielding layer 460 of this disclosure reduces the transmittance of the non-panel area 400B, thereby making the transmittance of the non-panel area 400B and the panel area 400A the same, improving the technical problem of differences in the display effect of different areas of the display device 400.
[0093] Referring to Figures 14 and 15, in the structure of Figure 14, the reflective adjustment layer 450 is provided on one side of the sealing cover plate 420 facing the second base 410, and the second light-shielding layer 460 is provided on one side of the second base 410 facing the sealing cover plate 420. In the structure of Figure 15, the second light-shielding layer 460 is provided on one side of the sealing cover plate 420 facing the second base 410, and the reflective adjustment layer 450 is provided on one side of the second base 410 facing the sealing cover plate 420. By a similar principle, both the reflective adjustment layer 450 and the second light-shielding layer 460 may be provided on one side of the sealing cover plate 420 facing the second base 410, or both the reflective adjustment layer 450 and the second light-shielding layer 460 may be provided on one side of the second base 410 facing the sealing cover plate 420. This disclosure does not impose specific limitations.
[0094] Referring to Figure 16, the display device 400 of the present disclosure further includes a first anti-reflection layer 471 and a second anti-reflection layer 472, wherein the first anti-reflection layer 471 is provided on one side of the sealing cover plate 420 away from the second base 410, and the second anti-reflection layer 472 is provided on the other side of the second base 410 away from the sealing cover plate 420. The first anti-reflection layer 471 and the second anti-reflection layer 472 of the present disclosure may be AR (Anti-Reflection) anti-reflection films, and are mainly used to reduce the reflectance of the surface of the display device 400 and increase the transmittance of the display device 400.
[0095] The display device 400 of this disclosure may be any product or component having a display function, such as a mobile phone, tablet, television, display, laptop computer, digital photo frame, navigation system, or automotive glass.
[0096] In the above embodiments, the descriptions of each embodiment differ in their emphasis, and for aspects not described in detail in one embodiment, you can refer to the relevant descriptions in other embodiments.
[0097] The examples of the present disclosure have been described in detail above. This specification has used specific examples to illustrate the principles and methods of implementation of the present disclosure. The above description of the examples is intended solely to aid in understanding the present disclosure's concepts and their core ideas. They may still be used to modify the concepts described in the aforementioned examples, or to replace some of their technical features with equivalent ones; however, those skilled in the art should understand that such modifications or replacements do not cause the essence of the corresponding concepts to deviate from the scope of the concepts in the examples of the present disclosure. [Explanation of Symbols]
[0098] 10: Display section 20: Drive unit 30: Electrostatic discharge section 100: Display Panel 110: Display Unit 111: 1st circuit section 112: 1st transparent part 113: 1st Base 114: Array layer 114A: Gate layer 114B: Gate insulating layer 114C: Active layer 114D: Source-drain polar layer 114E: Flat layer 114F: Pixel electrode layer 114G: Inter-insulating layer 114H: Buffer layer 116A: First insulating layer 116B: Second insulating layer 116C: Third insulating layer 116D: Fourth insulating layer 116E: Fifth insulating layer 117 :Protective glue 118: First transmission line 119: 1st light shielding layer 210: Drive unit 211: 2nd circuit section 212: 2nd transparent part 218: Second transmission line 310: Electrostatic discharge unit 311: 3rd circuit section 311A: Electrostatic protection element 312: Third transparent part 400:Display device 400A: Panel area 400B: Non-panel area 410: Second base 420: Sealing cover plate 430: 1st adhesive material 440:Second adhesive material 450:Reflection adjustment layer 460: 2nd light shielding layer 461: Light-shielding strip 471: First reflection reduction layer 472: Second reflection reduction layer 480: Glue
Claims
1. It is a display panel, It includes a display unit and a drive unit, The display unit includes a plurality of display units arranged along a first direction and a second direction, each of which includes a first circuit section and a first light-transmitting section provided on one side of the first circuit section, and the first circuit section includes at least one first light-emitting element and a pixel circuit electrically connected to any one of the first light-emitting elements. The drive unit is provided on at least one side of the display unit, and the drive unit includes a plurality of drive units arranged along the first direction and the second direction, each drive unit includes a second circuit section and a second light-transmitting section provided on one side of the second circuit section, and the second circuit section includes a gate drive circuit that outputs a control signal to the pixel circuit, The ratio of the area of the first light-transmitting portion to the area of the corresponding display unit is equal to the ratio of the area of the second light-transmitting portion to the area of the corresponding drive unit. A display panel characterized by the following features.
2. In the plurality of display units and the plurality of drive units in the first direction, the plurality of first circuit sections and the plurality of second circuit sections are arranged in order along the first direction, and the plurality of first light-transmitting sections and the plurality of second light-transmitting sections are arranged in order along the first direction. The area of one of the display units is equal to the area of one of the drive units, and the area of the first light-transmitting section is equal to the area of the second light-transmitting section. The display panel according to feature 1.
3. The second circuit further includes a second light-emitting element, wherein the number density of the second light-emitting element is the same as the number density of the first light-emitting element. The second light-emitting element and the corresponding gate drive circuit are installed in an insulating manner. The display panel according to feature 2.
4. Each of the first circuit units includes three of the first light-emitting elements, and the three of the first light-emitting elements are arranged along the first direction. The light-emitting colors of the three first light-emitting elements are each one of the following three distinct colors: red, green, and blue. The display panel according to feature 2.
5. Between two adjacent display units and / or two adjacent drive units, at least one signal transmission line extending along the second direction is provided. The display panel according to feature 2.
6. The first circuit section is, First base and, An array layer is provided on one side of the first base, and includes multiple insulating layers and multiple conductive layers, The array layer includes the first light-emitting element provided on one side away from the first base, The first light-transmitting portion includes at least one insulating layer, and the number of insulating layers in the first light-transmitting portion is less than or equal to the number of insulating layers in the first circuit portion. A display panel according to any one of claims 1 to 5.
7. The multiple conductive layers include a metal film layer, and the metal film layer does not overlap with the first light-transmitting portion. The display panel according to feature 6.
8. The first circuit portion further includes a first light-shielding layer, the first light-shielding layer is provided between the first light-emitting element and the array layer, and the orthogonal projection of the first light-shielding layer onto the array layer is located within the array layer. The display panel according to feature 6.
9. The display panel further includes an electrostatic discharge section provided between the display section and the drive section, the electrostatic discharge section includes a plurality of electrostatic discharge units, each electrostatic discharge unit includes a third circuit section and a third light-transmitting section, and the third circuit section includes an electrostatic protection element for discharging static electricity. The ratio of the area of the third light-transmitting portion to the area of the corresponding electrostatic discharge unit is equal to the ratio of the area of the second light-transmitting portion to the area of the corresponding drive unit. A display panel according to any one of claims 1 to 5.
10. A display device, It includes a panel area and a non-panel area provided on at least one side of the panel area, The aforementioned display device Second base and, A sealing cover plate provided relative to the second base, A display panel according to any one of claims 1 to 9, provided between the second base and the sealing cover plate and within the panel area, A display device characterized by the following features.
11. The display device further includes a first adhesive and a second adhesive provided between the second base and the sealing cover plate, The first adhesive is provided between the display panel and the second base, and the second adhesive is provided between the second base and the sealing cover plate, and covers one side of the display panel away from the second base, or The first adhesive is provided between the display panel and the second base, and the first adhesive is provided between the display panel and the sealing cover plate, the second adhesive is located within the non-panel area, and the second adhesive is provided between the second base and the sealing cover plate. The display device according to feature 10.
12. The curing rate of the first adhesive is less than the curing rate of the second adhesive. The display device according to feature 11.
13. The display device includes a panel area and a non-panel area provided on at least one side of the panel area, and the display panel is located within the panel area. The number of light rays derived from a unit area of light-emitting surface within the panel region is equal to the number of light rays derived from a unit area of light-emitting surface within the non-panel region. The display device according to feature 11.
14. The display device further includes a reflection adjustment layer provided in the non-panel area, the reflection adjustment layer provided between the second base and the sealing cover plate, The reflectance of the reflective adjustment layer has a positive correlation with the reflectance of the display panel. The display device according to feature 13.
15. In the non-panel region, the interface between the second adhesive and the sealing cover plate has a first reflectance, the surface of the second base away from the second adhesive has a second reflectance, and the first reflectance and the second reflectance have a first product. In the panel region, the interface between the display panel and the first adhesive has a third reflectance, the surface of the second base away from the second adhesive has a fourth reflectance, and the third reflectance and the fourth reflectance have a second product. The reflection adjustment layer has a fifth reflectance, and the quotient of the second product and the first product is the fifth reflectance. The display device according to feature 14.
16. The light transmittance within the panel region is equal to the light transmittance within the non-panel region. The display device according to feature 14.
17. The display device further includes a second light-shielding layer provided within the non-panel area, wherein the area of the second light-shielding layer is smaller than the area of the non-panel area. The display device according to feature 16.
18. The ratio of the area of the second light-shielding layer to the area of the non-panel region is equal to the ratio of the area of the first light-shielding layer to the area of the corresponding display unit. The display device according to feature 17.
19. The reflection adjustment layer is provided on one side of the sealing cover plate facing the second base, and the second light-shielding layer is provided on one side of the second base facing the sealing cover plate, or the second light-shielding layer is provided on one side of the sealing cover plate facing the second base, and the reflection adjustment layer is provided on one side of the second base facing the sealing cover plate. The display device according to feature 18.
20. The display device further includes a first reflection reduction layer and a second reflection reduction layer, wherein the first reflection reduction layer is provided on one side of the sealing cover plate away from the second base, and the second reflection reduction layer is provided on one side of the second base away from the sealing cover plate. The display device according to any one of claims 11 to 19.