Display device

Abstract

A display device is provided. The display device includes a display panel and a circuit portion. The circuit portion includes a first circuit portion and a second circuit portion. The first circuit portion is connected to the display panel. The second circuit portion is connected to the display panel and at least partially overlaps the first circuit portion. A connection portion of the circuit portion, which connects the first circuit portion and the second circuit portion, is provided between the display panel and the first circuit portion in a direction perpendicular to a surface of the display panel. The above arrangement of the display device according to the disclosure protects the connection portion from environmental exposure, which improves waterproof performance and also eliminates the need for an additional waterproof layer.

Description

Technical Field

[0001] Embodiments of this disclosure relate to a display device. Background Technology

[0002] Flat panel display devices include, for example, liquid crystal display (LCD) devices, plasma display panel (PDP) devices, organic light-emitting diode (OLED) devices, light-emitting diode (LED) devices, quantum dot LED (QLED) devices, field-effect display (FED) devices, electrophoretic display (EPD) devices, etc.

[0003] In addition to displaying images, such a display device may include touch sensing / detection functions that allow interaction with the user via touch input.

[0004] When a user touches the display panel with an object such as a finger or stylus, the touch sensing / detection function can detect changes in pressure, charge, and light applied to the display panel. The touch sensing / detection function can determine whether an object has touched the display panel and the location of the touch, and the display device can receive image signals based on this touch information. Utility Model Content

[0005] The purpose of this invention is to provide a display device that can improve waterproof performance without the need for an additional waterproof layer.

[0006] According to an embodiment of this disclosure, a display device includes: a display panel; and a circuit section, including a first circuit section and a second circuit section. The first circuit section is connected to the display panel. The second circuit section is connected to the display panel and at least partially overlaps with the first circuit section. A connecting portion of the circuit section connecting the first circuit section and the second circuit section is disposed between the display panel and the first circuit section and is covered by the first circuit section.

[0007] In one embodiment, the display panel includes a front surface on which an image is displayed and a rear surface opposite to the front surface. A first circuit section and a second circuit section are curved toward the rear surface of the display panel. A connection portion of the circuit sections may be disposed between the rear surface of the display panel and the first circuit section.

[0008] In one embodiment, the display panel includes a plurality of pixels for displaying an image, and a first circuit section transmits image signals to the plurality of pixels.

[0009] In one embodiment, the second circuitry detects touch signals from the display panel.

[0010] In one embodiment, the second circuit section includes a first portion connected to the display panel and a second portion connected to the first circuit section, and the second portion of the second circuit section includes a sub-touch circuit section.

[0011] In an embodiment, the first circuit portion includes a first surface and a second surface disposed opposite to each other, a first portion of the second circuit portion is disposed on the first surface of the first circuit portion, and a second portion of the second circuit portion is disposed on the second surface of the first circuit portion.

[0012] In one embodiment, the connecting portion is disposed between the rear surface of the display panel and the second surface of the first circuit portion.

[0013] In one embodiment, the first circuit section includes a hole, and the connecting portion passes through the hole of the first circuit section and connects the first portion of the second circuit section to the second portion of the second circuit section.

[0014] In one embodiment, the first circuit section includes a recessed portion, and a connecting portion is inserted into the recessed portion of the first circuit section and connects the first portion of the second circuit section to the second portion of the second circuit section.

[0015] In one embodiment, the second circuit section includes a first portion connected to the display panel, a second portion extending from the first portion, and a third portion, with the connection portion disposed in the third portion.

[0016] In one embodiment, the second and third portions can extend obliquely from the first portion in different directions and are spaced apart from each other.

[0017] In one embodiment, the first part, the second part, and the third part are arranged along one direction, and the second part is disposed between the first part and the third part.

[0018] In one embodiment, the second portion has a curved shape.

[0019] The display device according to an embodiment of the present disclosure has a structural arrangement including a first circuit portion and a second circuit portion connected to a display panel, which can improve waterproof performance without the need for additional construction or protective layer. Attached Figure Description

[0020] The above and other features of this disclosure will become more apparent from a detailed description of embodiments thereof with reference to the accompanying drawings.

[0021] Figure 1 This is a plan view of a display device according to an embodiment of the present disclosure.

[0022] Figures 2 to 4 This is a cross-sectional view showing a portion of a display device according to an embodiment of the present disclosure.

[0023] Figure 5 This is a plan view showing a portion of the back of the display panel of a display device according to an embodiment of the present disclosure.

[0024] Figure 6 This illustrates an embodiment according to the present disclosure. Figure 5 A plan view of the rear part of the area.

[0025] Figure 7 This is a plan view showing a portion of a display device according to an embodiment of the present disclosure.

[0026] Figure 8 This is a plan view showing a portion of a display device according to an embodiment of the present disclosure.

[0027] Figure 9 This is a plan view showing a portion of a display device according to an embodiment of the present disclosure.

[0028] Figure 10 This is a plan view showing a portion of a display device according to an embodiment of the present disclosure. Detailed Implementation

[0029] Embodiments of the present disclosure will be described more fully below with reference to the accompanying drawings. Throughout the drawings, the same reference numerals may refer to the same elements.

[0030] It will be understood that the terms “first,” “second,” “third,” etc., are used herein to distinguish one element from another, and the elements are not limited by these terms. Thus, a “first” element in one embodiment may be described as a “second” element in another embodiment.

[0031] It should be understood that, unless the context clearly indicates otherwise, the description of features or aspects within each embodiment should generally be considered applicable to other similar features or aspects in other embodiments.

[0032] As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “one,” and “the” are also intended to include the plural forms.

[0033] For ease of description, spatial relative terms such as “below,” “under,” “below,” “below,” “above,” “above,” etc., may be used herein to describe the relationship between one element or feature and another element(s) as shown in the accompanying drawings. It will be understood that, in addition to the orientations depicted in the drawings, the spatial relative terms are intended to cover different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as “below,” “below,” or “below” other elements or features will subsequently be oriented “above” said other elements or features. Thus, the example terms “below” and “below” can cover both above and below orientations.

[0034] It will be understood that when a component such as a membrane, region, layer, etc., is referred to as being "on" another component, "connected to" another component, "bonded to" another component, or "adjacent to" another component, it can be directly on, directly connected to, directly bonded to, or directly adjacent to the other component, or there may be intermediary components. It will also be understood that when a component is referred to as being "between" two components, it can be the only component between the two components, or there may be one or more intermediary components. It will also be understood that when a component is referred to as "covering" another component, it can be the only component covering the other component, or one or more intermediary components may also cover the other component. Other terms used to describe relationships between components should be interpreted in a similar manner.

[0035] Embodiments of this disclosure provide a display device having a structural arrangement including a first circuit section and a second circuit section connected to a display panel. This structural arrangement improves waterproof performance without requiring additional construction or protective layers. According to an embodiment, an image circuit section (also referred to as the first circuit section) for transmitting image signals and a touch circuit section (also referred to as the second circuit section) for sending and receiving touch signals can be configured to be partially stacked. The area where the image circuit section and the touch circuit section connect to each other can be referred to as a connecting portion, and can be disposed, for example, between the display panel and the first circuit section in a direction perpendicular to the surface of the display panel. By bending the image circuit section and the touch circuit section toward the rear of the display panel, the connecting portion between the rear surface of the display panel and the image circuit section can be effectively shielded.

[0036] The above arrangement protects the connection from environmental exposure, improving waterproofing and eliminating the need for an additional waterproof layer. Additionally, embodiments may include holes or recesses through which the touch circuitry passes within the image circuitry, further securing the connection and improving the overall durability of the display device. Integration of the touch circuitry with the image circuitry allows for precise processing of touch signals while protecting them from external elements such as water and static electricity, improving the device's durability and reliability.

[0037] Reference Figures 1 to 5 The following describes a display device according to an embodiment.

[0038] Figure 1 This is a plan view of a display device according to an embodiment of the present disclosure.

[0039] Figures 2 to 4 This is a cross-sectional view showing a portion of a display device according to an embodiment of the present disclosure.

[0040] Figure 2The state before assembling the display device according to the embodiment is shown. Figure 3 The operation of assembling a display device according to an embodiment is shown, and Figure 4 The state after assembling the display device according to the embodiment is shown.

[0041] Reference Figure 1 The display device according to the embodiment may include a display panel PN, the display panel PN including a display area DA in which a plurality of pixels PX are arranged on a first direction DR1 and a second direction DR2 and an image is displayed therein, and a non-display area NDA surrounding the display area DA in which no image is displayed.

[0042] The driving region DRA of the circuit section PS, which is connected to and bent to the rear of the display panel PN, is located on the periphery of a portion of the non-display area NDA of the display panel PN. The circuit section PS refers to a component on which circuitry (e.g., electrical circuitry) is disposed. This circuitry (e.g., electrical circuitry) may include electrical circuit components (such as transistors, resistors, capacitors, etc.). The electrical circuitry, including the electrical circuit components, may be disposed on, for example, a printed circuit board (PCB), a flexible printed circuit board (FPCB), etc. According to an embodiment, the circuit section PS may include an image circuit section MF (also called a first circuit section) and a touch circuit section TF (also called a second circuit section).

[0043] The connecting portion can refer to (multiple) parts that physically and electrically connect the image circuit section MF and the touch circuit section TF to each other. The connecting portion can be formed, for example, when the touch circuit section TF is pressed and engaged with the image circuit section MF, as described in further detail below. The connecting portion can be disposed between the rear surface of the display panel PN and the image circuit section MF, and can be covered and protected by the image circuit section MF. Furthermore, as described in further detail below, the connecting portion can pass through a hole formed in the image circuit section MF, or can be inserted into a recess in the image circuit section MF.

[0044] The non-display area NDA and the driving area DRA, located at the periphery of the display area DA, can form the peripheral area PA.

[0045] The display area DA may include multiple display signal lines that transmit drive signals that drive multiple pixels PX.

[0046] Display signal lines may include gate lines for transmitting gate signals and data lines for transmitting data signals.

[0047] The display area DA may include a touch-enabled area, and the touch-enabled area may include a touch sensing layer.

[0048] The touch sensing layer may include touch electrodes and touch signal lines that send and / or receive signals to the touch electrodes.

[0049] The effective touch area can be the entire display area DA or may include a portion of the peripheral area PA.

[0050] Additionally, a portion of the display area DA can be a touch-enabled area.

[0051] Touch sensing layers can use various methods to detect touch. For example, the touch detection sensor in a touch sensing layer can employ resistive, capacitive, electromagnetic (EM), or optical sensing.

[0052] The driving region DRA can be positioned along the second direction DR2 below the non-display region NDA of the display panel PN. However, the embodiments disclosed herein are not limited thereto.

[0053] As described above, the circuit section PS may include a connection section connected to the display panel PN and a curved section that bends from the connection section to the back of the display panel PN.

[0054] Together Figure 1 Refer to together Figures 2 to 4 The circuit section PS disposed in the driving area DRA may include an image circuit section MF that supplies image signals to multiple pixels PX disposed in the display panel PN to display an image, and a touch circuit section TF that transmits touch detection signals to the display panel PN.

[0055] The image circuit section MF can transmit drive signals to multiple display signal lines connected to multiple pixels PX, and the touch circuit section TF can transmit detection input signals to the touch sensing layer.

[0056] The touch circuitry unit (TF) can process the output signals from the touch sensing layer to generate touch information (such as whether a touch has occurred and the location of the touch).

[0057] Reference Figure 2 The display panel PN may include a front surface PNA that displays images using multiple pixels PX and a rear surface PNB that is opposite to the front surface PNA.

[0058] The front surface PNA and the rear surface PNB of the display panel PN can be arranged opposite each other along a third direction DR3 that is perpendicular to the first direction DR1 and the second direction DR2.

[0059] The circuit section PS can be connected to the rear surface PNB of the display panel PN.

[0060] The image circuit section MF of the circuit section PS may include a first surface MFA and a second surface MFB disposed opposite to each other.

[0061] The touch circuit section TF of the circuit section PS may include a first portion TFA connected to the display panel PN and disposed on the first surface MFA of the image circuit section MF, and a second portion TFB connected to the first portion TFA and disposed above the second surface MFB. The second portion TFB is connected to the image circuit section MF. The second portion TFB of the touch circuit section TF may include a sub-touch circuit section for transmitting a signal that detects a touch signal from the display panel PN.

[0062] The image circuit section MF of the circuit section PS may include a hole HL, and the connection between the first part TFA and the second part TFB of the touch circuit section TF may pass through the hole HL of the image circuit section MF.

[0063] The second part TFB of the touch circuit section TF and the second surface MFB of the image circuit section MF are pressed and engaged with each other, so that the sub-touch circuit section provided in the second part TFB of the touch circuit section TF can be connected to the image circuit section MF.

[0064] Reference Figure 3 In the assembly operation of the display device according to the embodiment, the image circuit section MF and the touch circuit section TF of the circuit section PS can be bent in the bending direction BDR.

[0065] Reference Figure 4 The image circuit section MF and the touch circuit section TF of the circuit section PS can be bent in the bending direction BDR and attached to the rear surface PNB of the display panel PN.

[0066] The sub-touch circuit section located in the second part TFB of the touch circuit section TF can be connected to the image circuit section MF via a pressing process.

[0067] For example, the touch circuit section TF can be pressed and bonded to the image circuit section MF by pressing the touch circuit section TF under high temperature and high pressure using an anisotropic conductive film.

[0068] The part of the touch circuit section TF that is pressed and engaged with the second part TFB of the image circuit section MF (i.e., the connecting part) can be provided between the rear surface PNB of the display panel PN and the image circuit section MF.

[0069] Therefore, the part that is pressed and joined (i.e., the connecting part) between the image circuit section MF and the second part TFB of the touch circuit section TF can be covered and protected by the image circuit section MF.

[0070] Therefore, waterproofing can be maintained without adding an additional waterproof layer.

[0071] In addition, it can protect the pressed and engaged part (i.e., the connection part) of the touch circuit section TF from the influence of external static electricity.

[0072] Together Figures 1 to 4 Refer to together Figure 5 and Figure 6 The circuit section PS, which is located on the rear surface PNB of the display panel PN, will be described in more detail below.

[0073] Figure 5 This is a plan view showing a portion of the rear area of ​​the display panel of a display device according to an embodiment of the present disclosure, and Figure 6 This illustrates an embodiment according to the present disclosure. Figure 5 A plan view of the rear part of the area.

[0074] Reference Figure 5 The curved circuit section PS and the image circuit section MF can be set on the rear surface PNB of the display panel PN.

[0075] The first part TFA of the touch circuit section TF can be disposed on the first surface MFA of the image circuit section MF.

[0076] Reference shows Figure 5 The rear part of region R1 Figure 6 The image circuit section MF has a hole HL, and the touch circuit section TF can pass through the hole HL.

[0077] The second part of the touch circuit section TF, TFB, can be pressed and attached to the second surface MFB of the image circuit section MF.

[0078] The sub-touch circuit section of the touch circuit section TF can be set in the second part TFB.

[0079] Therefore, the sub-touch circuit section of the touch circuit section TF can be disposed between the rear surface PNB of the display panel PN and the image circuit section MF.

[0080] Therefore, the part that is pressed and joined (i.e., the connecting part) between the image circuit section MF and the second part TFB of the touch circuit section TF can be covered and protected by the image circuit section MF.

[0081] Therefore, waterproofing can be maintained without adding an additional waterproof layer.

[0082] In addition, it can protect the pressed and engaged connection part of the touch circuit section TF from the influence of external static electricity.

[0083] Figure 7 This is a plan view showing a portion of a display device according to an embodiment of the present disclosure.

[0084] Reference Figure 7 The described embodiment of the display device is similar to that in reference. Figures 1 to 6 An embodiment of the display device is described. For ease of explanation, further descriptions of the previously described components and technical details will be omitted.

[0085] Reference Figure 7 In the display device according to embodiments of the present disclosure, similar to that according to reference... Figures 1 to 6 In the described embodiment of the display device, the image circuit section MF and the touch circuit section TF of the circuit section PS are bent and attached to the rear surface PNB side of the display panel PN.

[0086] However, compared with the reference Figures 1 to 6 The embodiments of the described display devices differ, depending on the reference. Figure 7 The image circuit section MF of the display device described in the embodiment has a recessed portion HHL instead of a hole HL, and the touch circuit section TF passes through the recessed portion HHL while being inserted into it, such that the second part TFB of the touch circuit section TF can be disposed behind the image circuit section MF.

[0087] The first part TFA of the touch circuit section TF can be disposed on the first surface MFA of the image circuit section MF, and the second part TFB of the touch circuit section TF can be disposed on the second surface MFB of the image circuit section MF, and it can be attached by pressing it onto the second surface MFB opposite to the first surface MFA.

[0088] The sub-touch circuit section of the touch circuit section TF can be set in the second part TFB.

[0089] Therefore, the sub-touch circuit section of the touch circuit section TF can be disposed between the rear surface PNB of the display panel PN and the image circuit section MF.

[0090] Therefore, the pressed and joined connection between the image circuit section MF and the second part TFB of the touch circuit section TF can be covered and protected by the image circuit section MF.

[0091] Therefore, waterproofing can be maintained without adding an additional waterproof layer.

[0092] In addition, it can protect the pressed and engaged connection part of the touch circuit section TF from the influence of external static electricity.

[0093] The following will refer to Figure 8 The form of the touch circuit section according to an embodiment of the present disclosure is described. For ease of explanation, further descriptions of the previously described components and technical aspects will be omitted.

[0094] Figure 8This is a plan view showing a portion of a display device according to an embodiment of the present disclosure.

[0095] Reference Figure 8 According to an embodiment, the touch circuit section TF1 includes a first portion TF1A connected to the display panel PN, and a second portion TF1B and a third portion TF1C extending obliquely from the first portion TF1A in different directions.

[0096] For example, the touch circuit section TF1 can have a planar shape similar to the letter Y in the alphabet.

[0097] The contact part that is pressed and engaged in the touch circuit section TF1 can be provided in the third part TF1C of the touch circuit section TF1.

[0098] As described above, the image circuit section MF may have a hole HL or a recessed section HHL, and the third part TF1C of the touch circuit section TF1 may pass through the hole HL or the recessed section HHL of the image circuit section MF and be disposed behind the image circuit section MF.

[0099] The following will refer to Figure 9 The form of the touch circuit section according to an embodiment of the present disclosure is described. For ease of explanation, further descriptions of the previously described components and technical aspects will be omitted.

[0100] Figure 9 This is a plan view showing a portion of a display device according to an embodiment of the present disclosure.

[0101] Reference Figure 9 According to an embodiment, the touch circuit section TF2 includes a first portion TF2A connected to the display panel PN, and a second portion TF2B and a third portion TF2C extending sequentially from the first portion TF2A along the second direction DR2.

[0102] Along the first direction DR1, the width of the second part TF2B can be narrower than the width of the first part TF2A and the third part TF2C.

[0103] For example, the touch circuit section TF2 can have a planar shape similar to the letter I in the alphabet.

[0104] The contact part that is pressed and engaged in the touch circuit section TF2 can be provided in the third part TF2C of the touch circuit section TF2.

[0105] As described above, the image circuit section MF may have a hole HL or a recessed section HHL, and the third part TF2C of the touch circuit section TF2 may pass through the hole HL or the recessed section HHL of the image circuit section MF and be disposed behind the image circuit section MF.

[0106] The form of the touch circuit section according to embodiments of this disclosure will be described. For ease of explanation, further descriptions of the previously described components and technical aspects will be omitted.

[0107] Figure 10 This is a plan view showing a portion of a display device according to an embodiment of the present disclosure.

[0108] Reference Figure 10 According to an embodiment, the touch circuit section TF3 includes a first portion TF3A connected to the display panel PN, and a second portion TF3B and a third portion TF3C extending sequentially from the first portion TF3A along the second direction DR2.

[0109] The second part TF3B may include a curved portion at the connection between the second part TF3B and the first part TF3A, and at the connection between the second part TF3B and the third part TF3C.

[0110] For example, the touch circuit section TF3 can have a planar shape similar to the letter C.

[0111] The contact part that is pressed and engaged in the touch circuit section TF3 can be provided in the third part TF3C of the touch circuit section TF3.

[0112] As described above, the image circuit section MF may have a hole HL or a recessed section HHL, and the third part TF3C of the touch circuit section TF3 may pass through the hole HL or the recessed section HHL of the image circuit section MF and be disposed behind the image circuit section MF.

[0113] Although this disclosure has been specifically shown and described with reference to embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of this disclosure as defined by the claims.

Claims

1. A display device, characterized in that, The display device includes: Display panel; and The circuit section includes a first circuit section and a second circuit section. The first circuit section is connected to the display panel. The second circuit section is connected to the display panel and at least partially overlaps with the first circuit section, and The connecting portion of the circuit section that connects the first circuit section and the second circuit section is disposed between the display panel and the first circuit section in a direction perpendicular to the surface of the display panel.

2. The display device according to claim 1, characterized in that, The display panel includes a front surface on which an image is displayed and a rear surface opposite to the front surface. The first circuit section and the second circuit section are bent toward the rear surface of the display panel, and The connection portion of the circuit section is disposed between the rear surface of the display panel and the first circuit section.

3. The display device according to claim 2, characterized in that, The display panel includes multiple pixels for displaying images. The first circuit section is configured to transmit image signals to the plurality of pixels. The second circuit section is configured to transmit a signal that detects touch signals from the display panel. The second circuit section includes a first portion connected to the display panel and a second portion connected to the first circuit section, and The second part of the second circuit section includes a sub-touch circuit section.

4. The display device according to claim 3, characterized in that, The first circuit section includes a first surface and a second surface disposed opposite to each other. The first portion of the second circuit section is disposed on the first surface of the first circuit section, and The second portion of the second circuit section is disposed on the second surface of the first circuit section.

5. The display device according to claim 4, characterized in that, The connecting portion is disposed between the rear surface of the display panel and the second surface of the first circuit portion.

6. The display device according to claim 4, characterized in that, The first circuit section includes a hole, and The connecting portion passes through the hole in the first circuit portion and connects the first portion of the second circuit portion to the second portion of the second circuit portion.

7. The display device according to claim 4, characterized in that, The first circuit portion includes a recessed portion, and The connecting portion is inserted into the groove of the first circuit portion, and connects the first part of the second circuit portion to the second part of the second circuit portion.

8. The display device according to claim 2, characterized in that, The display panel includes multiple pixels for displaying images. The first circuit section is configured to transmit image signals to the plurality of pixels. The second circuit section is configured to transmit a signal that detects touch signals from the display panel. The second circuit section includes a first portion connected to the display panel, and a second and a third portion extending from the first portion. The connecting part is disposed in the third part.

9. The display device according to claim 8, characterized in that, The second part and the third part extend obliquely from the first part in different directions and are spaced apart from each other.

10. The display device according to claim 8, characterized in that, The first part, the second part, and the third part are arranged along one direction, and the second part is disposed between the first part and the third part.

Images