CN108663841B - Liquid crystal display device and manufacturing method thereof - Google Patents
Liquid crystal display device and manufacturing method thereof Download PDFInfo
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- CN108663841B CN108663841B CN201810430163.1A CN201810430163A CN108663841B CN 108663841 B CN108663841 B CN 108663841B CN 201810430163 A CN201810430163 A CN 201810430163A CN 108663841 B CN108663841 B CN 108663841B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
Abstract
A liquid crystal display device comprises a display panel, wherein the display panel comprises an array substrate, the array substrate comprises a display area and a non-display area, the non-display area comprises a first supporting portion and a second supporting portion, and the thickness of the first supporting portion is smaller than that of the second supporting portion. The liquid crystal display device can improve the light path, reduce the risk of light leakage, improve the optical quality of products and simultaneously realize the thinning requirement of the liquid crystal display device. The invention also relates to a manufacturing method of the liquid crystal display device.
Description
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display device and a manufacturing method thereof.
Background
A Liquid Crystal Display (LCD) has advantages of good picture quality, small size, light weight, low driving voltage, low power consumption, no radiation, and relatively low manufacturing cost, and is dominant in the field of flat panel displays.
With the development and application of HVA technology (wide and narrow viewing angle switching technology), the luminance required for the backlight is greater. Currently, the HVA technology backlight adopts a film structure, so that the liquid crystal display device has a thinner thickness. However, since the overall thickness of the array substrate of the current display panel is constant, and the thickness of the array substrate carried on the lamp shade is large, the gap between the display panel and the backlight module is large, the light path of the liquid crystal display device is poor, especially for narrow-frame products, the gap between the display panel and the backlight module of the narrow frame is usually 0.277mm, and thus the light leakage of the products is easy.
Disclosure of Invention
The invention aims to provide a liquid crystal display device, which can improve the light path, reduce the light leakage risk, improve the optical quality of a product and realize the thinning requirement of the liquid crystal display device.
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
A liquid crystal display device comprises a display panel, wherein the display panel comprises an array substrate, the array substrate comprises a display area and a non-display area, the non-display area comprises a first supporting portion and a second supporting portion, and the thickness of the first supporting portion is smaller than that of the second supporting portion.
In a preferred embodiment of the invention, the liquid crystal display device further includes a backlight module, the display panel is disposed on the backlight module, and the first supporting portion and the second supporting portion of the non-display area abut against the backlight module.
In a preferred embodiment of the present invention, the backlight module includes a bottom frame and a plastic frame, the bottom frame is provided with a lamp cover, the plastic frame is disposed on the bottom frame and disposed opposite to the lamp cover, the first supporting portion of the non-display area is disposed on the lamp cover, and an end of the non-display area away from the first supporting portion is disposed on the plastic frame.
In a preferred embodiment of the present invention, the backlight module further includes a light guide plate and a buffer block, the light guide plate is disposed on the bottom frame, one side of the light guide plate is disposed in the lamp housing, one end of the buffer block is connected to the light guide plate, and the other end of the buffer block is connected to the second supporting portion of the non-display area.
In a preferred embodiment of the present invention, the buffer block includes a first flexible layer, a second flexible layer and a third flexible layer, the first flexible layer is connected to the light guide plate, one end of the second flexible layer is connected to the first flexible layer, the other end of the second flexible layer extends into the lamp housing, one side of the third flexible layer is connected to the second flexible layer, and the other side of the third flexible layer is connected to the second supporting portion of the non-display area.
In a preferred embodiment of the present invention, the display panel further includes a color filter substrate disposed on the array substrate, and one side of the buffer block extends to a position below the color filter substrate and has an overlapping region with the color filter substrate.
In a preferred embodiment of the present invention, the backlight module further includes an optical film disposed on the light guide plate, and a distance between the optical film and the display panel is less than 0.18 mm.
In a preferred embodiment of the present invention, a distance between the optical film and the frame is greater than or equal to 0.36 mm.
In a preferred embodiment of the present invention, the thickness of the first supporting portion of the non-display area is less than or equal to 0.1 mm.
Another objective of the present invention is to provide a method for manufacturing a liquid crystal display device, which can improve an optical path, reduce a risk of light leakage, improve a product quality, and achieve a requirement for thinning the liquid crystal display device.
A manufacturing method for manufacturing the liquid crystal display device comprises the following steps:
providing a display panel, wherein the display panel comprises an array substrate, the array substrate comprises a display area and a non-display area arranged around the display area, a first supporting part and a second supporting part are arranged on the non-display area, and the thickness of the first supporting part is smaller than that of the second supporting part.
The display panel of the liquid crystal display device comprises an array substrate, wherein the array substrate comprises a display area and a non-display area, the non-display area comprises a first supporting part and a second supporting part, and the thickness of the first supporting part is smaller than that of the second supporting part. Because the thickness of the first supporting part is thinner, the distance between the display panel and the backlight module is smaller, the light path can be improved, the light leakage risk is reduced, the product taste is improved, and meanwhile, the thinning requirement of the liquid crystal display device is met.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are specifically described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic cross-sectional view of a liquid crystal display device according to a first embodiment of the present invention.
Fig. 2 is a partially cross-sectional schematic view of a liquid crystal display device according to a second embodiment of the present invention.
FIG. 3 is a flow chart of a method for fabricating a liquid crystal display device according to the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the liquid crystal display device and the manufacturing method thereof according to the present invention with reference to the accompanying drawings and preferred embodiments is as follows:
the foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of preferred embodiments, which is to be read in connection with the accompanying drawings. While the present invention has been described in connection with the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and specific embodiments thereof.
Fig. 1 is a schematic cross-sectional view of a liquid crystal display device according to a first embodiment of the present invention. As shown in fig. 1, in the present embodiment, the liquid crystal display device 100a includes a display panel 10, a backlight module 20 and a control panel 30. The display panel 10 is disposed on the backlight module 20, and the control panel 30 is electrically connected to the display panel 10 and the backlight module 20, respectively. The control panel 30 is used for controlling the display panel to display images and controlling the brightness of the backlight module 20, and when the backlight emitted by the backlight module 20 passes through the display panel 10, the display panel 10 can display images.
As shown in fig. 1, the display panel 10 includes a color filter substrate 12, an array substrate 13, and a liquid crystal layer 14, where the color filter substrate 12 is disposed opposite to the array substrate 13, and the liquid crystal layer 14 is disposed between the color filter substrate 12 and the array substrate 13.
The array substrate 13 includes a display region 131 and a non-display region 132, wherein the non-display region 132 is located at the periphery of the array substrate 13. The non-display area 132 includes a first supporting portion 132a and a second supporting portion 132b, the thickness of the first supporting portion 132a is smaller than that of the second supporting portion 132b, and preferably, the thickness of the first supporting portion 132a is 0.1mm, but not limited thereto. The first and second supporting portions 132a and 132b are located at one end of the non-display area 132 near the control panel 30. Since the thickness of the first support part 132a is smaller than that of the second support part 132b, a thickness difference step is formed between the first support part 132a and the second support part 132 b. In the embodiment, the thickness of the second supporting portion 132b is equal to the thickness of the array substrate 13, but not limited thereto, for example, the thickness of the second supporting portion 132b may be smaller than the thickness of the array substrate 13.
As shown in fig. 1, the display panel 10 is disposed on the backlight module 20, and the first supporting portion 132a and the second supporting portion 132b of the non-display region 132 abut against the backlight module 20, wherein the second supporting portion 132b provides a supporting force for supporting the display panel 10, and the first supporting portion 132a assists to provide a supporting force for supporting the display panel 10 or does not provide a supporting force for supporting the display panel 10. In the present embodiment, the backlight module 20 includes a bottom frame 22, a plurality of light sources 23, a rubber frame 24, a reflective sheet 25, a light guide plate 26, an optical film 27, and a buffer block 28 a.
The bottom frame 22 includes a bottom plate 221, a side plate 222 and a lamp cover 223, the side plate 222 is connected to the bottom plate 221 opposite to the lamp cover 223, and a receiving cavity for receiving the light source 23, the rubber frame 24, the reflective sheet 25, the light guide plate 26 and the optical film 27 is formed among the bottom plate 221, the side plate 222 and the lamp cover 223.
The lamp cover 223 is disposed on the bottom plate 221, and a gap for accommodating the light source 23 is formed between the lamp cover 223 and the bottom plate 221. The light sources 23 are disposed in the lamp housing 223 and spaced apart from each other along the length direction of the lamp housing 223. The light source 23 is, for example, an LED lamp, but not limited thereto.
The rubber frame 24 is disposed on the bottom plate 221 and close to the side plate 222, that is, the rubber frame 24 is disposed opposite to the lamp shade 223, that is, the rubber frame 24 and the lamp shade 223 are respectively disposed at two ends of the backlight module 20, and preferably, the rubber frame 24 and the lamp shade 223 are disposed opposite to each other along the width direction or the length direction of the backlight module 20.
The reflective sheet 25 is disposed on the base 221 to reflect light.
The light guide plate 26 is disposed on the reflective sheet 25, one side of the light guide plate 26 is disposed in the lamp housing 223, and the other side of the light guide plate 26 is disposed adjacent to the bezel 24. The light guide plate 26 is provided with a light incident end surface, the light incident end surface is arranged opposite to the light source 23, and light rays emitted by the light source 23 can enter the light guide plate 26 from the light incident end surface.
An optical film 27 is disposed on the light guide plate 26, and the optical film 27 serves to uniformly irradiate the light emitted from the light source 23 toward the display panel 10. In the present embodiment, the first support part 132a of the non-display area 132 is disposed on the lamp shade 223, and an end of the non-display area 132 away from the first support part 132a is disposed on the rubber frame 24, that is, the lamp shade 223 and the rubber frame 24 are used to support the array substrate 13 of the display panel 10. Since there is a thickness difference step between the first supporting portion 132a and the second supporting portion 132b, and the thickness of the first supporting portion 132a is thinner, the first supporting portion 132a is disposed on the lamp shade 223 so that the distance between the display panel 10 and the optical film 27 is smaller, for example, the distance between the optical film 27 and the display panel 10 is less than 0.18mm, and preferably, the distance between the optical film 27 and the display panel 10 is 0.177mm, but not limited thereto. Therefore, the liquid crystal display device 100a of the present invention can improve the light path, reduce the risk of light leakage, improve the optical quality of the product, and achieve the requirement of thinning the liquid crystal display device 100 a.
In the present embodiment, the smaller distance between the optical film 27 and the display panel 10 causes the propagation path of the light between the optical film 27 and the bezel 24 to decrease, so that the safety distance between the optical film 27 and the bezel 24 increases, for example, the distance L1 between the optical film 27 and the bezel 24 is greater than or equal to 0.36mm, and preferably, the distance L1 between the optical film 27 and the bezel 24 is 0.369mm, but not limited thereto. Therefore, the liquid crystal display device 100a of the present invention can effectively reduce the risk of light leakage at the edge, and further improve the product quality.
Since the first supporting portion 132a of the array substrate 13 is a supporting point for supporting the entire display panel 10, in order to prevent the array substrate 13 from being cracked after the first supporting portion 132a is thinned, the buffer block 28a is disposed at a position corresponding to the second supporting portion 132b, so as to transfer the supporting point of the display panel 10 and the backlight module 20 from the first supporting portion 132a to the second supporting portion 132 b. In this embodiment, one end of the buffer block 28a is connected to the light guide plate 26, and the other end of the buffer block 28a is connected to the second supporting portion 132b of the non-display region 132. The buffer block 28a is made of a flexible material and has a certain amount of compressive deformation, and when pressure is applied to the display panel 10, the buffer block 28a can support and buffer the pressure of the display panel 10, thereby preventing the array substrate 13 from being broken.
In this embodiment, the buffer block 28a includes a first flexible layer 281, a second flexible layer 282, and a third flexible layer 283. The first flexible layer 281 is attached to the light guide plate 26; one end of the second flexible layer 282 is connected to the first flexible layer 281, and the other end of the second flexible layer 282 extends into the lamp shade 223 and covers a part of the light guide plate 26 and the light source 23; one side of the third flexible layer 283 is attached to the second flexible layer 282, and the other side of the third flexible layer 283 is attached to the second supporting part 132b of the non-display area 132. That is, the buffer block 28a is formed by stacking a plurality of flexible layers, and the number of layers of the buffer block 28a can be freely increased or decreased according to actual needs, which is not limited to the above.
In this embodiment, in order to increase the structural strength of the entire display panel 10, the length of the buffer block 28a is extended, one side of the buffer block 28a extends to the lower side of the color filter substrate 12, and an overlapping region 101 is provided between the color filter substrate 12 and the buffer block 28a, and the larger the area of the overlapping region 101 is, the better the overlapping region is without affecting the display.
Fig. 2 is a partially cross-sectional schematic view of a liquid crystal display device according to a second embodiment of the present invention. As shown in fig. 2, the liquid crystal display device 100b of the present embodiment has substantially the same structure as the liquid crystal display device 100a of the first embodiment, but differs in the structure of the buffer block 28 b.
In particular, the bumper 28b is made of a unitary piece of flexible material, that is, the bumper 28b is not formed from a stack of multiple flexible layers. In this embodiment, one end of the buffer block 28b is connected to the light guide plate 26, and the other end of the buffer block 28b is connected to the second supporting portion 132b of the non-display region 132. One side of the buffer block 28b extends into the lamp shade 223 and covers a part of the light guide plate 26 and the light source 23, and the other side of the buffer block 28b extends below the color filter substrate 12, so that an overlapping region is formed between the color filter substrate 12 and the buffer block 28 b. In this embodiment, when pressure is applied to the display panel 10, the buffer block 28b may serve to support and buffer the pressure of the display panel 10, thereby preventing the array substrate 13 from being broken.
FIG. 3 is a flow chart of a method for fabricating a liquid crystal display device according to the present invention. Referring to fig. 1 to 3, the method for fabricating the liquid crystal display device of the present invention includes the steps of:
step S1, providing a display panel 10, where the display panel 10 includes a color film substrate 12, an array substrate 13, and a liquid crystal layer 14 disposed between the color film substrate 12 and the array substrate 13, the array substrate 13 includes a display area 131 and a non-display area 132 disposed around the display area 131, and a first supporting portion 132a and a second supporting portion 132b are disposed on the non-display area 132, and a thickness of the first supporting portion 132a is smaller than a thickness of the second supporting portion 132 b.
In step S2, the backlight module 20 is provided, the display panel 10 is disposed on the backlight module 20, and the first supporting portion 132a and the second supporting portion 132b of the non-display area 132 are abutted against the backlight module 20.
Step S3 is to dispose the first supporting portion 132a of the non-display region 132 on the lamp cover 223 of the backlight module 20, dispose one end of the non-display region 132 away from the first supporting portion 132a on the plastic frame 24 of the backlight module 20, connect one ends of the buffer blocks 28a and 28b to the light guide plate 26 of the backlight module 20, and connect the other ends of the buffer blocks 28a and 28b to the second supporting portion 132b of the non-display region 132.
Specifically, the backlight module 20 includes a bottom frame 22, a plurality of light sources 23, a plastic frame 24, a reflective sheet 25, a light guide plate 26, an optical film 27, and buffer blocks 28a and 28b, a first support portion 132a of the array substrate 13 is disposed on the lamp shade 223, one end of the non-display area 132 away from the first support portion 132a is disposed on the plastic frame 24, one ends of the buffer blocks 28a and 28b are connected to the light guide plate 26, the other ends of the buffer blocks 28a and 28b are connected to a second support portion 132b of the non-display area 132, and a load-bearing point of the display panel 10 and the backlight module 20 is transferred from the first support portion 132a to the second support portion 132 b.
The display panel 10 of the liquid crystal display device 100a, 100b of the present invention includes an array substrate 13, the array substrate 13 includes a display region 131 and a non-display region 132, the non-display region 132 includes a first support portion 132a and a second support portion 132b, and a thickness of the first support portion 132a is smaller than a thickness of the second support portion 132 b. Since the first supporting portion 132a is thinner, the first supporting portion 132a is disposed on the lamp shade 223, so that the distance between the display panel 10 and the backlight module 20 is smaller, the light path can be improved, the light leakage risk is reduced, the optical quality of the product is improved, and the liquid crystal display devices 100a and 100b can be thinned.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (9)
1. A liquid crystal display device, including the display panel (10), the display panel (10) includes the array base plate (13), the array base plate (13) includes the display area (131) and non-display area (132), characterized by, the non-display area (132) includes the first supporting part (132a) and second supporting part (132b), the thickness of the first supporting part (132a) is smaller than the thickness of the second supporting part (132b), the liquid crystal display device also includes the backlight module (20), the backlight module (20) includes the underframe (22), light guiding plate (26) and buffer block, there are lamp shades (223) on the underframe (22), the first supporting part (132a) is set in the lamp shade (223), the light guiding plate (26) is set in the underframe (22), one side of the light guiding plate (26) is set in the lamp shade (223), one end of the buffer block is connected on the light guiding plate (26), the other end of the buffer block is connected to the second support part (132 b).
2. The lcd apparatus of claim 1, wherein the display panel (10) is disposed on the backlight module (20), and the first supporting portion (132a) and the second supporting portion (132b) of the non-display region (132) abut against the backlight module (20).
3. The lcd apparatus of claim 2, wherein the backlight module (20) comprises a frame (24), the frame (24) is disposed on the bottom frame (22) and opposite to the lamp cover (223), and an end of the non-display region (132) away from the first supporting portion (132a) is disposed on the frame (24).
4. The lcd apparatus of claim 3, wherein the buffer block comprises a first flexible layer (281), a second flexible layer (282), and a third flexible layer (283), the first flexible layer (281) is attached to the light guide plate (26), one end of the second flexible layer (282) is attached to the first flexible layer (281), the other end of the second flexible layer (282) extends into the lamp housing (223), one side of the third flexible layer (283) is attached to the second flexible layer (282), and the other side of the third flexible layer (283) is attached to the second supporting portion (132b) of the non-display region (132).
5. The lcd apparatus of claim 3, wherein the display panel (10) further comprises a color filter substrate (12), the color filter substrate (12) is disposed on the array substrate (13), and one side of the buffer block extends to below the color filter substrate (12) and has an overlapping region (101) with the color filter substrate (12).
6. A liquid crystal display device as claimed in claim 3, characterized in that the backlight module (20) further comprises an optical film (27), the optical film (27) being arranged on the light guide plate (26), the distance between the optical film (27) and the display panel (10) being less than 0.18 mm.
7. The LCD device as claimed in claim 6, wherein the distance between the optical film (27) and the frame (24) is greater than or equal to 0.36 mm.
8. The liquid crystal display device of claim 1, wherein the thickness of the first support portion (132a) of the non-display area (132) is less than or equal to 0.1 mm.
9. A manufacturing method of manufacturing the liquid crystal display device of any one of claims 1 to 8, the manufacturing method comprising the steps of:
a display panel (10) is provided, the display panel (10) including an array substrate (13), the array substrate (13) including a display area (131) and a non-display area (132), a first support portion (132a) and a second support portion (132b) are provided on the non-display area (132), and a thickness of the first support portion (132a) is made smaller than a thickness of the second support portion (132 b).
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