WO2014042062A1

WO2014042062A1 - Display device

Info

Publication number: WO2014042062A1
Application number: PCT/JP2013/073930
Authority: WO
Inventors: 小山　佳英
Original assignee: シャープ株式会社
Priority date: 2012-09-12
Filing date: 2013-09-05
Publication date: 2014-03-20
Also published as: JPWO2014042062A1

Abstract

A liquid crystal display device (10) is provided with: a liquid crystal panel (11) in which one plate surface is used as a display surface (11D) and the other plate surface is used as an opposing surface (110); a cover panel (12) facing the display surface (11D) with respect to the liquid crystal panel (11); a backlight device (13) facing the opposing surface (110) with respect to the liquid crystal panel (11); indicator parts (30) arranged in a non-display part (NAA) of the liquid crystal panel (11); and a panel support frame (27) for supporting the liquid crystal panel (11), the panel support frame (27) having alignment openings (31) for enabling alignment of the liquid crystal panel (11) and the backlight device (13) in the direction along the plate surfaces of the liquid crystal panel (11) from the positional relationship between the indicator parts (30) and opening edge parts (31a) of the alignment openings (31), the alignment openings (31) being formed in portions overlapping with at least the indicator parts (30) in plan view.

Description

Display device

The present invention relates to a display device.

In recent years, display devices in electronic devices such as portable information terminals (cell phones, smartphones, tablet notebook computers, etc.) have used liquid crystal panels as display panels for displaying images and supplied illumination light to the liquid crystal panels. A liquid crystal display device using a backlight device is employed. Backlight devices used in such liquid crystal display devices are roughly classified into direct type and edge light type according to the mechanism, and in order to realize further thinning of the liquid crystal display device, an edge light type backlight is used. A light device is preferably used, and an example thereof is disclosed in Patent Document 1 below.

JP 2000-162570 A

(Problems to be solved by the invention)
In the above-described Patent Document 1, the backlight device has a light guide plate for guiding the light from the light source to the liquid crystal panel while planarizing the light, and both the light guide plate and the liquid crystal panel are connected to each other. An alignment mark for positioning is provided. However, for example, when a panel support member that supports the liquid crystal panel from the back side is used, or when a protective cover glass is attached to the front side of the liquid crystal panel, the liquid crystal panel and the light guide plate are aligned by the alignment mark. There has been a problem that the positional accuracy of both of them is lowered.

The present invention has been completed based on the above situation, and an object thereof is to improve the positional accuracy between the display panel and the lighting device.

(Means for solving the problem)
The display device according to the present invention has a display portion that has a plate shape and can display an image on the plate surface, and a non-display portion outside the display portion, and one plate surface is a display surface. A display panel whose other plate surface is the opposite surface, a cover panel attached to the display panel so as to face the display surface, and a display panel attached to the display panel so as to face the opposite surface. An illumination device that supplies light to the display panel; an indicator portion that is arranged in the non-display portion of the display panel; and at least a part of the non-display portion of the display panel that is provided in the illumination device. A panel support member that is disposed at a position that overlaps when viewed in a plane and that supports the display panel so as to face at least part of the opposite surface, and at least a portion that overlaps when viewed from the plane with the indicator portion Open A panel support member having an alignment opening capable of aligning the display panel and the lighting device in a direction along the plate surface of the display panel from the positional relationship between the opening edge and the indicator portion; Is provided.

In this way, when the lighting device is attached to the display panel when assembling the display device, the indicator unit provided in the non-display portion of the display panel is provided with a non-display. It can be confirmed from the side opposite to the display panel side through an alignment opening formed in a panel support member arranged at a position overlapping at least a part of the portion in plan view. That is, for example, even when the procedure of attaching the illumination device after attaching the cover panel to the display panel first, the indicator portion can be easily confirmed by the alignment opening. At this time, the display panel and the lighting device can be aligned with high accuracy in the direction along the plate surface of the display panel from the positional relationship between the opening edge portion of the alignment opening and the indicator portion. As a result, the light from the lighting device can be appropriately supplied to the display unit of the display panel, and when other components are incorporated into the display device, for example, interference with the components is less likely to occur. In addition, it is possible to obtain an effect that the reliability of the assembling work is excellent and damage caused by assembling becomes difficult to occur.

The following configuration is preferable as an embodiment of the present invention.
(1) There is provided an adhesive that is disposed between the display panel and the cover panel so as to adhere the two. By doing so, the display panel and the cover panel can be kept in an adhesive state by the liquid adhesive being solidified while being arranged in a form interposed between the display panel and the cover panel. Therefore, compared with the case where a tape-like adhesive member is used, the stress acting on the display panel can be relaxed, and thereby the display quality of the display panel can be kept high. In addition, if the procedure for attaching the cover panel after attaching the lighting device to the display panel is taken, the display panel and the cover panel may be attached to each other although the liquid adhesive may enter the lighting device. If the lighting device is attached to the display panel after first being bonded with an adhesive, such a problem can be avoided in advance.

(2) The cover panel is formed with a light blocking portion that blocks light at least in a range overlapping with the non-display portion of the display panel in a plan view. In this way, the display panel according to the image displayed on the display unit has a higher display quality by blocking the light by the light shielding unit formed in a range overlapping with at least the non-display unit in the plan view. It can be. When such a light shielding portion is formed on the cover panel, when assembling the display device, for example, when the procedure of attaching the cover device to the display panel first and then attaching the illumination device is taken, At the time of installation, the indicator portion cannot be visually recognized through the cover panel. In that respect, since the panel support member has the alignment opening as described above, the indicator portion can be easily confirmed from the opposite side of the display panel through the alignment opening. The display panel and the lighting device can be aligned with high accuracy in the direction along the plate surface.

(3) A panel adhesive member disposed between the panel support member and the display panel and adhered to the panel support member is provided, and the panel adhesive member has an opening at the alignment opening. The panel adhesive member-side opening that communicates is formed so as to penetrate therethrough. If it does in this way, when attaching an illuminating device with respect to a display panel, it will be made to adhere both to the panel adhesive member interposed between the panel support member and the display panel. Since the panel adhesive member side opening that communicates with the alignment opening is formed through the panel adhesive member, the alignment opening and the panel are attached when the lighting device is attached to the display panel. The indicator part can be confirmed through the adhesive member side opening. Thereby, a display panel and an illuminating device can be aligned with high precision about the direction along the plate | board surface of a display panel.

(4) The indicator section is arranged on the display surface side of the display panel. In this way, since the indicator portion is arranged on the opposite side of the display panel from the panel adhesive member side, when the panel adhesive member is attached to the display panel, the panel adhesive member is mistakenly indicated. Since the situation of sticking to the part is less likely to occur, the index part is less likely to be peeled off.

(5) The lighting device includes a light source that emits light, a light incident surface that is opposed to the light source and is incident on the light from the light source, and the opposite surface of the display panel. A light guide plate having a light output surface for emitting light toward the display panel, and a plate surface opposite to the light output surface side of the light guide plate and the non-display portion of the display panel. A reflection member arranged to overlap with at least a part of the plane when viewed in a plane, and reflects light toward the light emitting surface, and at least the reflection member has a reflection communicating with the alignment opening. The member side opening is formed so as to penetrate therethrough. In this way, the light emitted from the light source is incident on the light incident surface of the light guide plate facing the light source and propagates through the light guide plate. The light is emitted from the light emitting surface by being reflected by the reflecting member covering the plate surface toward the light emitting surface, and is irradiated on the display panel. Although the reflective member is arranged in a form overlapping with at least a part of the non-display portion of the display panel in plan view, the reflective member side opening communicating with the alignment opening included in the panel support member passes therethrough. Since it is formed, the display panel and the illuminating device are increased in the direction along the plate surface of the display panel by checking the indicator portion from the side opposite to the display panel side through the reflective member side opening and the alignment opening. Can be aligned with accuracy.

(6) The alignment opening is formed in the panel support member at a position where the light guide plate does not overlap with the light guide plate. In this way, since it is not necessary to provide the light guide plate with an opening communicating with the alignment opening, it is possible to avoid the light leakage problem that is a concern when such an opening is provided. .

(7) A casing member that is attached to the panel support member with the reflecting member interposed therebetween, and a casing that is disposed between the casing member and the reflecting member and adheres to the casing member. The housing pressure-sensitive adhesive member is provided with a housing pressure-sensitive adhesive member-side opening that communicates with the alignment opening. In this way, the housing adhesive member disposed between the housing member and the reflecting member and adhered to the housing member has a housing adhesive member side opening communicating with the alignment opening. Since the portion is formed so as to penetrate, when attaching the lighting device to the display panel, the indicator portion can be confirmed through the alignment opening and the housing adhesive member side opening. Thereby, a display panel and an illuminating device can be aligned with high precision about the direction along the plate | board surface of a display panel.

(8) The indicator portion is made of a light reflective material that reflects light. In this way, when the indicator portion is confirmed through the alignment opening of the panel support member, the indicator portion made of the light-reflective material reflects light, so that the indicator portion can be confirmed more easily. . Thereby, it is possible to align the display panel and the lighting device with higher accuracy in the direction along the plate surface of the display panel.

(9) The indicator portion is made of a metal film that specularly reflects light. In this way, when the indicator portion is confirmed through the alignment opening of the panel support member, the indicator portion made of the metal film reflects the light specularly, so that the indicator portion can be confirmed more easily.

(10) Each of the display panels includes a switching element at least partially made of a metal film, and an array substrate in which a wiring portion connected to the switching element is formed on a plate surface on the display surface side. The indicator portion is formed of a metal film that is disposed on a plate surface on the display surface side of the array substrate and constitutes at least a part of the switching element and the wiring portion. In this way, when manufacturing the array substrate, the indicator portion made of the same metal film is formed in the step of forming the metal film that forms at least part of the switching element and the wiring portion on the display surface side plate surface. can do. This eliminates the need for a dedicated process for forming the index portion, thereby reducing manufacturing equipment and tact time.

(11) The display panel is a liquid crystal panel in which liquid crystal is sealed between a pair of substrates. Such a display device can be applied as a liquid crystal display device to various uses, for example, a display such as a portable information terminal or an in-vehicle information terminal.

(The invention's effect)
According to the present invention, the positional accuracy between the display panel and the lighting device can be improved.

1 is an exploded perspective view of a liquid crystal display device according to Embodiment 1 of the present invention. Plan view of LCD panel Plan view of the display section of the array substrate constituting the liquid crystal panel Plan view of the display part of the CF substrate constituting the liquid crystal panel Sectional drawing which cut | disconnected the liquid crystal display device along the long side direction (Y-axis direction) Sectional drawing which cut | disconnected the liquid crystal display device along the short side direction (X-axis direction) in the formation position of the parameter | index part Sectional drawing which shows the state before attaching a liquid crystal panel and a cover panel Sectional drawing cut | disconnected along the Y-axis direction which shows the state before attaching the liquid crystal panel which attached the cover panel, and a backlight apparatus. Sectional drawing cut | disconnected along the X-axis direction in the formation position of a parameter | index part which shows the state before attaching the liquid crystal panel which attached the cover panel, and a backlight apparatus. Bottom view showing the state where the indicator and the alignment opening are concentric Bottom view showing a state where the index portion and the alignment opening are displaced. Sectional drawing cut | disconnected along the Y-axis direction which shows the state after attaching the liquid crystal panel which attached the cover panel, and the backlight apparatus. Sectional drawing which cut | disconnected along the X-axis direction in the formation position of an index part which shows the state after attaching the liquid crystal panel which attached the cover panel, and the backlight apparatus. The bottom view which shows the state in which the parameter | index part which concerns on Embodiment 2 of this invention, and the alignment opening part make concentricity. The bottom view which shows the state in which the parameter | index part which concerns on Embodiment 3 of this invention, and the alignment opening part makes concentricity. Sectional drawing cut | disconnected along the X-axis direction in the formation position of a parameter | index part which shows the state before attaching the liquid crystal panel which attached the cover panel which concerns on Embodiment 4 of this invention, and a backlight apparatus. Bottom view showing the state where the indicator and the alignment opening are concentric The bottom view which shows the state which the parameter | index part which concerns on Embodiment 5 of this invention, and a registration opening part make concentric. The bottom view which shows the state which the indicator part and alignment opening part which concern on Embodiment 6 of this invention make concentricity

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. In this embodiment, the liquid crystal display device 10 including the cover panel 12 is illustrated. In addition, a part of each drawing shows an X axis, a Y axis, and a Z axis, and each axis direction is drawn to be a direction shown in each drawing. 5 and 6 is used as a reference, and the upper side in the figure is the front side and the lower side in the figure is the back side.

As shown in FIG. 1, the liquid crystal display device 10 has a vertically long rectangular shape as a whole, and the front side plate surface is a display surface 11D for displaying an image, and the back side plate surface is an opposite surface 110. A liquid crystal panel (display panel) 11, a cover panel 12 arranged to face the display surface 11 D with respect to the liquid crystal panel 11, and a shape opposite to the opposite surface 110 with respect to the liquid crystal panel 11 (cover panel 12 And a backlight device (illumination device) 13 that is an external light source that supplies light to the liquid crystal panel 11. Furthermore, the liquid crystal display device 10 includes a casing (housing member, exterior member) 14 that houses the cover panel 12, the liquid crystal panel 11, and the backlight device 13. Among the components of the liquid crystal display device 10, the cover panel 12 and the casing 14 constitute the appearance of the liquid crystal display device 10. The liquid crystal display device 10 according to the present embodiment includes a portable information terminal (such as a mobile phone, a smartphone, and a tablet notebook computer), an in-vehicle information terminal (such as a stationary car navigation system and a portable car navigation system), and a portable game. It is used for various electronic devices such as a machine. For this reason, the screen sizes of the liquid crystal panel 11 and the cover panel 12 constituting the liquid crystal display device 10 are about several inches to several tens of inches, and are generally classified as small or medium-sized.

The liquid crystal panel 11 will be described. As shown in FIG. 2, the liquid crystal panel 11 has a vertically long rectangular shape as a whole, and displays an image at a position slightly deviated on one end side (the upper side shown in FIG. 2) in the long side direction. A driver (panel driving unit) 15 for driving the liquid crystal panel 11 to a position offset to the other end side (the lower side shown in FIG. 2) in the long side direction is provided with a display unit (active area) AA. Is attached. In the liquid crystal panel 11, a substantially frame-like (frame-like) region surrounding the display portion AA is a non-display portion (non-active area) NAA that does not display an image. Chip On Glass) has been implemented. A non-display portion NAA in the liquid crystal panel 11 is connected to a flexible substrate (not shown) for supplying various input signals to the driver 15. Further, the long side direction in the liquid crystal panel 11 coincides with the Y-axis direction, and the short side direction coincides with the X-axis direction. 2 represents the outer shape of the display portion AA, and a region outside the one-dot chain line is a non-display portion NAA.

As shown in FIG. 5, the liquid crystal panel 11 is interposed between a pair of transparent (translucent)

glass substrates

11 a and 11 b and both the

substrates

11 a and 11 b, and has an optical characteristic as the electric field is applied. And a liquid crystal layer (not shown) containing liquid crystal molecules which are changing substances, and both

substrates

11a and 11b are bonded together by a sealing agent (not shown) while maintaining a gap corresponding to the thickness of the liquid crystal layer. Each of the pair of

substrates

11a and 11b has a thickness of about 0.2 mm, for example, so that the liquid crystal panel 11 is thinned. Among these, as shown in FIG. 2, the CF substrate 11a has a short side dimension substantially equal to that of the array substrate 11b, but a long side dimension smaller than that of the array substrate 11b. Then, they are bonded together with the ends of one side (the upper side shown in FIG. 2) in the long side direction aligned. Therefore, the other end (the lower side shown in FIG. 2) in the long side direction of the array substrate 11b is in a state where the CF substrate 11a does not overlap over a predetermined range and both the front and back plate surfaces are exposed to the outside. Here, a mounting area of the driver 15 is secured. Further,

polarizing plates

11c and 11d are attached to the outer surfaces of both the

substrates

11a and 11b, respectively, and the size (area) of both the

polarizing plates

11c and 11d is slightly larger than that of the display portion AA. .

Among the pair of

substrates

11a and 11b constituting the liquid crystal panel 11, the front side (front side) is the CF substrate 11a, and the back side (back side) is the array substrate 11b. On the inner surface side (the liquid crystal layer side, the surface facing the CF substrate 11a) of the array substrate 11b, as shown in FIG. 3, there are a large number of TFTs (Thin Film Transistors) 16 and pixel electrodes 17 that are switching elements. These are provided side by side, and around the TFT 16 and the pixel electrode 17, a large number of gate wirings 18 and source wirings 19 are arranged so as to surround each of them. In other words, the TFTs 17 and the pixel electrodes 18 are arranged in parallel in a matrix at the intersections of the gate wirings 18 and the source wirings 19 arranged in parallel so that a large number of them are arranged in a lattice pattern. Although the gate wiring 18 and the source wiring 19 are both made of a metal film having conductivity and light shielding properties (for example, a thin film of a metal material such as copper, aluminum, titanium, etc.), they are arranged in different layers and are not shown between them. The short circuit at the intersection is prevented by interposing the insulating film. The gate wiring 18 and the source wiring 19 are connected to the gate electrode and the source electrode of the TFT 16, respectively, and the pixel electrode 17 is connected to the drain electrode of the TFT 16. The gate electrode of the TFT 16 is made of the same metal film as the gate wiring 18 and arranged in the same layer, whereas the source electrode and the drain electrode of the TFT 16 are made of the same metal film as the source wiring 19 and in the same layer. Arranged. The gate wiring 18 and the source wiring 19 are connected to the driver 15 at their respective ends, and are supplied with signals from the driver 15. The pixel electrode 17 is made of a transparent electrode film having conductivity and translucency (for example, a thin film of a transparent conductive material such as ITO (Indium Tin Oxide)).

On the other hand, on the inner surface side (the liquid crystal layer side, the surface facing the array substrate 11b) of the CF substrate 11a, as shown in FIG. 4, the pixel electrodes 17 on the array substrate 11b side are overlapped with each other in a plan view. A large number of color filters are provided side by side. The color filter is arranged such that the colored portions 20 exhibiting R (red), G (green), and B (blue) are alternately arranged along the X-axis direction. The coloring portion 20 has a rectangular shape in plan view, and the long side direction and short side direction thereof coincide with the long side direction and short side direction of the

substrates

11a and 11b, and the X-axis direction on the CF substrate 11a. A large number of them are arranged in parallel in a matrix in the Y-axis direction. Between each coloring part 20 which comprises a color filter, the black matrix (light shielding part between coloring parts) 21 which forms the grid | lattice shape for preventing color mixing is formed. The black matrix 21 is arranged so as to overlap with the gate wiring 18 and the source wiring 19 on the array substrate 11b side in plan view. In the liquid crystal panel 11, one pixel which is a display unit is configured by a set of three colored portions 20 of R, G, and B and the corresponding three pixel electrodes 17. A large number are arranged in parallel in a matrix along the plate surfaces 11a and 11b (X-axis direction and Y-axis direction). On the surface of each colored portion 20 and the black matrix 21, a counter electrode (common electrode) (not shown) facing the pixel electrode 17 on the array substrate 11b side is provided. An alignment film (not shown) for aligning liquid crystal molecules contained in the liquid crystal layer is formed on the inner surfaces of both the

substrates

11a and 11b.

As shown in FIGS. 1 and 5, the cover panel 12 is arranged so as to cover the liquid crystal panel 11 over the entire area from the front side, thereby protecting the liquid crystal panel 11. On the center side portion of the cover panel 12 (specifically, the portion overlapping the entire area of the display portion AA in the liquid crystal panel 11 and the inner peripheral side portion adjacent to the display portion AA in the non-display portion NAA). The liquid crystal panel 11 is affixed to the back surface of the plate via an adhesive BL. The adhesive BL is applied to one or both of the liquid crystal panel 11 and the cover panel 12 in a liquid state, and is solidified after the

panels

11 and 12 are bonded together. Can be bonded together. Therefore, if an adhesive tape is used, a tensile stress or a compressive stress acts locally on the CF substrate 11a forming the liquid crystal panel 11 due to minute irregularities generated on the surface of the tape base material, and the cell. Such a problem is less likely to occur as compared to the possibility of local changes in the gap (thickness of the liquid crystal layer). That is, since both the

panels

11 and 12 are bonded by solidifying the adhesive BL in the liquid state, the stress that can act on the CF substrate 11a forming the liquid crystal panel 11 can be relieved, so that each substrate 11a, Even if the plate thickness of 11b is thin and its rigidity is low, local changes in the cell gap are less likely to occur, and the display quality can be kept high. In addition, since an air layer is avoided between the cover panel 12 and the liquid crystal panel 11, display quality is improved. As the adhesive BL, it is preferable to use, for example, an ultraviolet curable resin material that is cured by irradiation with ultraviolet rays. The cover panel 12 is made of, for example, a plate-like tempered glass having high transparency. As the tempered glass used for the cover panel 12, it is preferable to use chemically tempered glass having a chemically strengthened layer on the surface, for example, by subjecting the surface of a plate-like glass substrate to chemical tempering treatment. This chemical strengthening treatment refers to, for example, a treatment for strengthening a plate-like glass substrate by replacing alkali metal ions contained in a glass material by ion exchange with alkali metal ions having an ion radius larger than that, The resulting chemically strengthened layer is a compressive stress layer (ion exchange layer) in which compressive stress remains. Thereby, since the cover panel 12 is supposed to have high mechanical strength and impact resistance, the liquid crystal panel 11 arranged on the back side can be more reliably prevented from being damaged or damaged. .

Like the liquid crystal panel 11, the cover panel 12 has a vertically long rectangular shape when seen in a plane, and the size seen in the plane is slightly larger than the

substrates

11a and 11b forming the liquid crystal panel 11, and will be described later. The outer shape of the support frame 27 is approximately the same. Therefore, the outer peripheral side portion of the cover panel 12 projects outward from the outer peripheral end of the liquid crystal panel 11 in a bowl shape. The cover panel 12 is formed with a light shielding portion 12a that surrounds the display portion AA of the liquid crystal panel 11 and is arranged so as to overlap with the non-display portion NAA in a plan view so as to block light around the display portion AA. . The light shielding portion 12a is made of a light shielding material such as a paint exhibiting black, for example, and the light shielding material is printed on the back surface of the cover panel 12, that is, the surface of the liquid crystal panel 11 side. It is provided integrally on the plate surface. In providing the light shielding portion 12a, for example, printing means such as screen printing and ink jet printing can be employed. The light shielding portion 12 a is formed on the outer peripheral side portion of the cover panel 12 that protrudes outward from the outer peripheral end of the liquid crystal panel 11 in addition to the portion that overlaps the entire area of the non-display portion NAA in the liquid crystal panel 11. , When viewed from above, it is formed into a vertically long substantially frame shape (substantially frame shape), so that the light from the backlight device 13 before the light enters the plate surface on the back side of the cover panel 12 around the display area AA. The light can be shielded by the light shielding part 12a in stages. That is, the light-shielding portion 12a is formed over almost the entire area of the cover panel 12 that is not superposed with the display portion AA of the liquid crystal panel 11 when viewed in plan. In FIG. 1, the light-shielding portion 12a is shown in a shaded shape, and a white square region inside the light-shielding portion 12a is a region that transmits light from the display portion AA.

As shown in FIGS. 1 and 5, the backlight device 13 has a vertically long and substantially block shape as in the liquid crystal panel 11 as a whole. The backlight device 13 includes an LED (Light Emitting Diode) 22 that is a light source, an LED substrate (light source mounting substrate) 23 on which the LED 22 is mounted, a light guide plate 24 that guides light from the LED 22, and a light guide. An optical sheet (optical member) 25 stacked on the light plate 24, a reflective sheet (reflective member) 26 stacked on the light guide plate 25, and surrounds the light guide plate 24 and the optical sheet 25 and the liquid crystal panel 11 on the back side. A panel support frame (panel support member) 27 supported from the side opposite to the cover panel 12 side is provided. The backlight device 13 is a so-called edge light type (side light type) in which the LEDs 22 are unevenly distributed at the outer peripheral end of the liquid crystal panel 11. Hereinafter, the components of the backlight device 13 will be described sequentially.

As shown in FIG. 5, the LED 22 has a configuration in which an LED chip is sealed with a resin material on a substrate portion fixed to the plate surface of the LED substrate 23. The LED chip mounted on the substrate unit has one main emission wavelength, and specifically, one that emits blue light in a single color is used. On the other hand, the resin material that seals the LED chip is dispersed and blended with a phosphor that emits a predetermined color when excited by the blue light emitted from the LED chip, and generally emits white light as a whole. It is said. The LED 22 is a so-called side-emitting type in which a side surface adjacent to the mounting surface with respect to the LED substrate 23 is a light emitting surface.

As shown in FIGS. 1 and 5, the LED substrate 23 has a flexible film-like (sheet-like) base material made of an insulating material, and the LED 22 described above is surface-mounted on the base material. In addition, a wiring pattern for supplying power to the LED 22 is patterned. The LED substrate 23 is disposed only at one end portion on the short side of the backlight device 13 and extends along the short side direction (Y-axis direction) of the backlight device 13. A plurality of LEDs 22 are mounted on the LED substrate 23 in an intermittent manner along the extending direction. The LED substrate 23 is arranged in a form sandwiched between the liquid crystal panel 11 and a panel support frame 27 described later in the thickness direction (Z-axis direction) of the backlight device 13. Therefore, the mounting surface of the LED 22 on the LED substrate 23 is a surface facing the back side (the side opposite to the liquid crystal panel 11 side).

As shown in FIGS. 1 and 5, the light guide plate 24 has a vertically long plate shape having a plate surface parallel to the plate surface of the liquid crystal panel 11, and the left side shown in FIG. The end surface on the short side of the front side shown in FIG. 3 is opposed to the LED 22 and is a light incident surface 24a on which light from the LED 22 is incident. Of the light guide plate 24, a plate surface facing the front side (the liquid crystal panel 11 side) is a light emitting surface 24 b that emits light toward the liquid crystal panel 11. In addition, three end surfaces (specifically, the right side short side surface and the pair of long side side end surfaces shown in FIG. 5) of the outer peripheral end surface of the light guide plate 24 excluding the light incident surface 24a are respectively connected to the LED 22. Is an LED non-opposing end face (light source non-opposing end face) that does not face each other.

As shown in FIGS. 1 and 5, the optical sheet 25 is placed on the light emitting surface 24 b of the light guide plate 24 and disposed between the liquid crystal panel 11 and the light guide plate 24, thereby guiding the optical sheet 25. The light emitted from the light plate 24 is transmitted and emitted toward the liquid crystal panel 11 while giving a predetermined optical action to the transmitted light. A plurality of optical sheets 25 (three in the present embodiment) are laminated together. The optical sheet 25 has a vertically long rectangular shape, similar to the light guide plate 24, and has a size (long side dimension and short side dimension) viewed from the plane larger than the light guide plate 24, and the array substrate of the liquid crystal panel 11. It is assumed to be smaller than 11b. Specific types of the optical sheet 25 include, for example, a diffusion sheet, a lens sheet, a reflective polarizing sheet, and the like, which can be appropriately selected and used.

As shown in FIGS. 1 and 5, the reflection sheet 26 is disposed so as to cover the plate surface 24 c on the back side (the side opposite to the light emitting surface 24 b) of the light guide plate 24. Since the reflection sheet 26 is made of a synthetic resin sheet material having a white surface with excellent light reflectivity, the light propagating in the light guide plate 24 is directed toward the front side (light emission surface 24b). It can be launched efficiently. The reflection sheet 26 has a vertically long rectangular shape, similar to the light guide plate 24, and has a size (long side dimension and short side dimension) viewed from the plane larger than the light guide plate 24, and the array substrate of the liquid crystal panel 11. It should be the same as or larger than 11b. The reflection sheet 26 is superimposed on almost the entire area of the liquid crystal panel 11 (display unit AA and non-display unit NAA) in plan view, and is also superimposed on the inner peripheral side portion of the panel support frame 27 described below in plan view. ing.

The panel support frame 27 is made of synthetic resin. As shown in FIG. 1, the panel support frame 27 has a vertically long frame shape whose outer shape is substantially the same as that of the cover panel 12, and the liquid crystal panel 11, light guide plate 24, and The optical sheet 25 is accommodated. The panel support frame 27 is formed by connecting a pair of short side portions extending along the X-axis direction and a pair of long side portions extending along the Y-axis direction. The panel support frame 27 is a back plate surface (including the opposite surface 110) of the outer peripheral end portion of the cover panel 12 where the light shielding portion 12a is formed and the outer peripheral end portion (part) of the non-display portion NAA of the liquid crystal panel 11. And the same plate surface can be supported from the back side over the entire circumference. The panel support frame 27 supports most of the outer peripheral end portion of the optical sheet 25 from the back side.

As shown in FIGS. 4 and 5, the panel support frame 27 has a substantially stepped shape with three steps in cross section, and the highest first step portion 27 a supports the outer peripheral end of the cover panel 12 from the back side. The second highest second step portion 27b supports the outer peripheral end portion of the non-display portion NAA of the liquid crystal panel 11 from the back side, and the lowest third step portion 27c supports the outer peripheral end portion of the optical sheet 25 from the back side. Yes. Among these, between the 2nd step part 27b of the panel support frame 27 and the liquid crystal panel 11, it arrange | positions in the form which the adhesive tape 28 (adhesive member for panels) which adheres to both interposes. The liquid crystal panel 11 and the panel support frame 27 are kept in the attached state by the adhesive tape 28 for use. The panel adhesive tape 28 has a flexible tape-like base material, and an adhesive is applied to both the front and back surfaces of the base material. In total, it is formed in a vertically long, substantially frame shape (FIG. 1). With this panel adhesive tape 28, the liquid crystal panel 11 and the panel support frame 27 are fixed substantially over the entire circumference. The width dimension of the panel adhesive tape 28 having a substantially frame shape is substantially the same as or slightly narrower than the width dimension of the second step portion 27 b of the panel support frame 27. In addition, although the 1st step part 27a and the 2nd step part 27b are provided in the short side part by the side of LED22 among the panel support frames 27, the 3rd step part 27c is not provided but the 2nd step part 27b. The LED substrate 23 is placed on the substrate (FIG. 4). The LED substrate 23 is sandwiched between the second step portion 27 b of the panel support frame 27 and the end portion of the array substrate 11 b of the liquid crystal panel 11.

The casing 14 is made of a synthetic resin material or a metal material, and has a substantially bowl shape (substantially bowl shape) opened toward the front side as shown in FIGS. The cover panel 12, the liquid crystal panel 11, and the backlight device 13 are completely accommodated in the accommodation space held inside the casing 14. Therefore, the casing 14 covers the backlight device 13 from the back side, and covers the backlight device 13 and the cover panel 12 from the side over the entire circumference, thereby constituting the appearance of the back side and the side surface side of the liquid crystal display device 10. ing. Between the portion of the casing 14 facing the panel support frame 27 constituting the backlight device 13 and the back surface of the panel support frame 27, an adhesive tape for casing (adhesion for housing) that adheres to both is provided. Member) 29 is interposed, and the casing 14 and the panel support frame 27 are kept in an attached state by the panel adhesive tape 28. Since the casing adhesive tape 29 is formed in a substantially vertically long frame shape according to the shape of the panel support frame 27 to be adhered, the casing 14 and the panel support frame 27 are fixed substantially over the entire circumference. . A part of the casing adhesive tape 29 is also attached to the outer peripheral end of the reflection sheet 26. Moreover, the adhesive tape 29 for casings has a tape-shaped base material which has flexibility, an adhesive is apply | coated to both the front and back in the base material, and is the same as the above-mentioned adhesive tape 28 for panels. It is a member. In addition, in the housing space of the casing 14, the space remaining on the back side of the backlight device 13 includes a control board for controlling the driving of the liquid crystal panel 11 and an LED driving board for supplying driving power to the LEDs 22. Contains non-performing boards.

As shown in FIGS. 1 and 2, the liquid crystal panel 11 according to the present embodiment serves as an index for aligning the liquid crystal panel 11 and the backlight device 13 in the manufacturing process of the liquid crystal display device 10. An indicator portion 30 is formed. The indicator unit 30 is arranged in the non-display unit NAA in the liquid crystal panel 11, and more specifically, the end of the array substrate 11b that is not overlapped with the CF substrate 11a and on which the driver 15 is mounted (see FIG. 2). A pair is arranged in the vicinity of both corners in the lower end portion shown. The indicator 30 is formed on the front surface (display surface 11D side) of the array substrate 11b, that is, on the same surface as the formation surface of the TFT 16 and the

wirings

18 and 19. The indicator portion 30 is made of either a metal film that forms the gate electrode of the gate line 18 and the TFT 16 or a metal film that forms the source electrode / drain electrode of the source line 19 and the TFT 16, and manufactures the array substrate 11 b. Of the processes, the film is formed in the same process as that of the metal film forming the TFT 16 and the

wirings

18 and 19. The indicator portion 30 made of a metal film that is a light-reflective material is capable of specularly reflecting light. This makes it easy to check the indicator portion 30 when positioning the liquid crystal panel 11 and the backlight device 13. As shown in FIG. 10, the indicator portion 30 has a planar shape that is a regular octagon deformed into a substantially star shape. The specific planar shape of the indicator portion 30 is a deformed star shape having eight apex portions 30a protruding outward as a whole by bending the line segment connecting the vertices of the regular octagon into the inside. Yes. The eight apexes 30a included in the indicator portion 30 have an internal angle of about 90 degrees, whereas the bent portions between the apexes 30a have an internal angle of about 225 degrees (180 degrees or more). That is, the planar shape of the indicator portion 30 can be obtained by rotating and overlapping two squares so as to be shifted from each other by 45 degrees.

Here, the portion of the liquid crystal panel 11 where the above-described indicator portion 30 is formed (a part of the outer peripheral end portion) is, as shown in FIGS. 1 and 6, the light shielding portion 12a of the cover panel 12 arranged on the front side. And the panel support frame 27 arranged on the back side, the assembly work is performed in the procedure of attaching the backlight device 13 after the cover panel 12 and the liquid crystal panel 11 are bonded together, for example. In such a case, it is difficult to confirm the indicator portion 30 from the outside (particularly from the front side). Therefore, the panel support frame 27 disposed on the back side with respect to the liquid crystal panel 11 is opened by a portion overlapping with the index unit 30 when viewed in plan (viewed from the normal direction of the display surface 11D). An alignment opening 31 is provided that allows 30 to be seen from the back side. The alignment opening 31 penetrates the panel support frame 27 along the thickness direction (Z-axis direction), and a pair of long lengths of the panel support frame 27 so as to overlap the pair of index portions 30 in plan view. A pair of side portions are arranged at each end portion on both sides of the front side shown in FIG. As shown in FIG. 10, the alignment opening 31 has a substantially circular shape in a plan view, and its diameter is slightly larger than the outer shape of the indicator portion 30. The alignment opening 31 is centered at the center when the liquid crystal panel 11 and the backlight device 13 are aligned as designed in the direction along the display surface 11D (X-axis direction and Y-axis direction). The arrangement is concentric with the center of the portion 30. The opening edge 31a of the alignment opening 31 has a circular endless annular shape (doughnut shape) as viewed in a plane so as to surround the index portion 30, and the alignment opening 31 and the index portion 30 are concentric. Then, all the distances between the respective top portions 30a of the indicator portion 30 and the facing portions of the opening edge portions 31a with the respective top portions 30a are set to the same constant value. Accordingly, when the liquid crystal panel 11 and the backlight device 13 are attached, the positional relationship between the opening edge portion 31a and each top portion 30a of the indicator portion 30 is confirmed through the alignment opening portion 31, thereby It is possible to align the backlight device 13 with respect to the X-axis direction and the Y-axis direction. In the present embodiment, the allowable positional deviation amount when performing this alignment operation is, for example, about ± 0.1 mm to ± 0.15 mm.

The backlight device 13 according to the present embodiment has components other than the panel support frame 27 that have a positional relationship that overlaps with the above-described indicator portion 30 in a plan view. For example, as shown in FIGS. 1 and 5, the panel adhesive tape 28, the reflective sheet 26, and the casing adhesive tape 29 all have a portion that overlaps the indicator portion 30 in plan view. , Each having openings 32 to 34 communicating with the alignment opening 31. Specifically, among the panel-shaped adhesive tape 28 having a substantially frame shape, the panel-adhesive tape that communicates with the alignment opening 31 at each end of the pair of long sides on the front corners shown in FIG. A pair of side openings (panel adhesive member side openings) 32 are formed to penetrate therethrough. In the rectangular reflection sheet 26, a pair of reflection sheet side openings (reflection member side openings) 33 communicating with the alignment opening 31 is formed in the vicinity of both front corners shown in FIG. ing. Of the adhesive tape 29 for casing having a substantially frame shape, the casing adhesive tape side opening communicating with the alignment opening 31 is provided at each end of the pair of long sides on the front corners shown in FIG. A pair of casing adhesive member side openings 34 are formed to penetrate therethrough. Each of the openings 32 to 34 described above has a substantially circular shape when seen in a plan view, and has a diameter that is substantially the same as that of the alignment opening 31. Each of the openings 32 to 34 is centered at the index portion when the liquid crystal panel 11 and the backlight device 13 are aligned as designed in the direction along the display surface 11D (X-axis direction and Y-axis direction). 30 and the alignment opening 31 are arranged so as to be concentric with each center. Therefore, when the liquid crystal panel 11 and the backlight device 13 are attached, in addition to the alignment opening 31, the opening edge 31 a of the alignment opening 31 and the tops of the indicator portions 30 are passed through the openings 32 to 34. It is possible to confirm the positional relationship with 30a. Further, among the components of the backlight device 13, the light guide plate 24 is arranged so as not to overlap the indicator portion 30 and the alignment opening 31 in a plan view. No opening that penetrates in the direction is formed.

This embodiment has the structure as described above, and its operation will be described next. When the liquid crystal display device 10 having the above-described configuration is manufactured, the liquid crystal panel 11, the cover panel 12, the backlight device 13, and the casing 14 which are main components are manufactured in advance, and these components are arranged in a predetermined order. Assemble with. In the present embodiment, first, an operation of attaching the liquid crystal panel 11 and the cover panel 12 is performed. When performing this mounting operation, as shown in FIG. 7, an adhesive BL in a liquid state is applied onto the CF substrate 11a (front polarizing plate 11c) arranged on the front side of the liquid crystal panel 11. Then, the cover panel 12 disposed on the front side is bonded. When the cover panel 12 is bonded to the liquid crystal panel 11 and the adhesive BL is sufficiently expanded, both the panels 11 are cured (solidified) by irradiating the adhesive BL made of an ultraviolet curable resin material with ultraviolet rays. , 12 are bonded. Since the adhesive BL is used when attaching the liquid crystal panel 11 and the cover panel 12 in this way, the stress acting on the CF substrate 11a of the liquid crystal panel 11 is relieved compared with the case where an adhesive tape is used. The gap can be kept uniform and display defects such as white spots are unlikely to occur in the liquid crystal panel 11. If the cover panel 12 is attached using the adhesive BL after the liquid crystal panel 11 and the backlight device 13 are attached first, the liquid adhesive BL may flow into the backlight device 13. However, since the cover panel 12 is attached before the backlight device 13 is attached to the liquid crystal panel 11 as described above, such a situation can be prevented in advance. .

Subsequently, an operation of attaching the backlight device 13 to the liquid crystal panel 11 with the cover panel 12 attached is performed. Here, as shown in FIGS. 8 and 9, the backlight device 13 provided for assembly has a panel adhesive tape 28 on the front surface of the panel support frame 27 and a casing adhesive tape 29 on the back surface. The protective film 35 for protecting the casing adhesive tape 29 is affixed to the back surface of the casing adhesive tape 29 until the casing 14 is attached. It is attached. The protective film 35 has protective film side openings 35a communicating with the openings 31 to 34. A protective film (not shown) is attached to the front surface of the panel adhesive tape 28 in order to protect the panel adhesive tape 28 from when the backlight device 13 is manufactured to when it is attached to the liquid crystal panel 11. ing.

When the liquid crystal panel 11 and the backlight device 13 are attached, the indicator portion 30 is used as an indicator for aligning the both 11 and 13, but the cover panel 12 is already attached to the front side of the liquid crystal panel 11. In addition, since the light shielding portion 12a of the cover panel 12 is in a positional relationship with the indicator portion 30 so as to overlap in plan view, it is extremely difficult to confirm the indicator portion 30 through the cover panel 12 from the front side. Accordingly, when performing the mounting operation of the backlight device 13, as shown in FIG. 9, the indicator portion 30 is placed on the back side (the cover panel 12 side through the openings 31 to 34, 35a provided in the backlight device 13. The liquid crystal panel 11 and the backlight device 13 are aligned by the operator viewing from the opposite side. Specifically, in the backlight device 13, the panel support frame 27 is provided with an alignment opening 31, and any of the panel adhesive tape 28, the reflection sheet 26, the casing adhesive tape 29, and the protective film 35. Since the panel adhesive tape side opening 32, the reflection sheet side opening 33, the casing adhesive tape side opening 34, and the protective film side opening 35a that are in communication with the alignment opening 31 are also provided. An operator who attaches the panel 11 and the backlight device 13 visually recognizes the index part 30 through the respective opening parts 31 to 34, 35a communicating with each other, and each apex part 30a of the index part 30 and the opening edge part of the alignment opening part 31 It is determined whether or not the positional relationship with respect to 31a in the X-axis direction and the Y-axis direction is normal.

At this time, as shown in FIG. 10, the distances between the respective top portions 30a of the indicator portion 30 and the facing portions of the opening edge portions 31a of the alignment opening portion 31 with the respective top portions 30a are all the same and constant, When the index unit 30 and the alignment opening 31 are concentric, the liquid crystal panel 11 and the backlight device 13 are normally aligned as designed in the X-axis direction and the Y-axis direction. Determined. On the other hand, as shown in FIG. 11, the distance between each apex 30 a of the index portion 30 and the opening edge 31 a of the alignment opening 31 varies, and the distance between the index portion 30 and the alignment opening 31 is different. When the centers are shifted from each other, it is determined that the liquid crystal panel 11 and the backlight device 13 are displaced in at least one of the X-axis direction and the Y-axis direction. In this case, the operator adjusts the position of the liquid crystal panel 11 or the backlight device 13 and performs alignment so that the index portion 30 and the alignment opening 31 are concentric. When the liquid crystal panel 11 and the backlight device 13 are accurately aligned by performing such an alignment operation, the liquid crystal panel 11 is attached to the panel for the backlight device 13 as shown in FIGS. Affixed to the tape side opening 32. Thereby, since the liquid crystal panel 11 and the cover panel 12 are attached in a state of being aligned with high accuracy with respect to the backlight device 13, the light from the backlight device 13 is appropriately applied to the display unit AA of the liquid crystal panel 11. Therefore, it is possible to prevent luminance unevenness and the like. In addition, when the casing 14 is continuously attached to the backlight device 13, it is difficult for the backlight device 13 or the cover panel 12 to partially interfere with the casing 14. As a result, the reliability of the assembling work is excellent, and damage due to assembling becomes difficult to occur.

Next, an operation of attaching the casing 14 to the backlight device 13 with the cover panel 12 and the liquid crystal panel 11 attached thereto is performed. When the casing 14 is attached, the protective film 35 attached to the back surface of the casing adhesive tape 29 in the backlight device 13 is peeled off in advance. In this state, the cover panel 12, the liquid crystal panel 11 and the backlight device 13 are accommodated in the accommodating space of the casing 14, and the casing adhesive tape 29 is attached to the inner surface of the casing 14, as shown in FIGS. 5 and 6. Thus, the manufacture of the liquid crystal display device 10 is completed.

<Comparison experiment 1>
Here, the comparative experiment 1 relating to the mounting operation of the liquid crystal panel 11 and the backlight device 13 will be described. In this comparative experiment 1, the mounting operation of the liquid crystal panel 11 and the backlight device 13 is performed a plurality of times (for example, 32 times) by the following methods of Comparative Examples 1 and 2 and Examples 1 and 2, and the liquid crystal panel 11 and the backlight device 13 respectively measured how much they were displaced from the design position in the X-axis direction and the Y-axis direction, and the results are shown in Table 1. In Comparative Example 1, the liquid crystal panel 11 and the backlight device 13 are attached without confirming the index portion 30, and the configuration and manufacturing procedure are described before this paragraph except that the index portion 30 is not confirmed. That's right. In Comparative Example 2, the attachment operation of the liquid crystal panel 11 and the backlight device 13 is performed prior to the attachment of the cover panel 12, and the panel side indicator portion provided on the liquid crystal panel 11 and the backlight side indicator provided on the backlight device 13. The above-described mounting operation is performed while visually confirming the portion from the front side, and the liquid crystal panel 11 and the cover panel 12 are attached with an adhesive tape instead of the adhesive BL. In the first embodiment, the liquid crystal panel 11 is provided with an indicator portion made of a transparent electrode film, and the indicator portion is confirmed through the alignment opening 31 of the panel support frame 27. Except for the fact that the materials have been changed, the construction and manufacturing procedures are as described before this paragraph. This transparent electrode film is made of the same material as the pixel electrode 17 included in the array substrate 11b. In the second embodiment, the mounting operation is performed by providing the liquid crystal panel 11 with an index portion 30 made of a metal film and checking the index portion 30 through the alignment opening 31 of the panel support frame 27. All manufacturing procedures are as described before this paragraph.

Explanation of each column in Table 1. The leftmost column of Table 1 shows the maximum positional deviation amount + Gmax (in the unit of “mm” in the positive direction in the X-axis direction and the Y-axis direction among the mounting operations of the liquid crystal panel 11 and the backlight device 13 a plurality of times. ). The second column from the left end of Table 1 shows the negative direction in the X-axis direction and the Y-axis direction (the direction opposite to the positive direction) among the mounting operations of the liquid crystal panel 11 and the backlight device 13 a plurality of times. The maximum displacement amount -Gmax (unit: “mm”). The center column of Table 1 is the standard deviation σ (unit: “mm”) of the positional deviation amount. The second column from the right end of Table 1 is an average value Gave (unit: “mm”) of misalignment amounts. The rightmost column of Table 1 is the process capability index Cpk. The process capability index Cpk is an index in which the center bias of the normal distribution is considered in Cp (Process Capability Index), and it is possible to determine the quality of the alignment by this index. In this comparative experiment 1, the process capability index Cpk is calculated based on the following formulas (1) and (2) from the standard deviation and the average value. Further, in the comparative experiment 1, in the equations (1) and (2), the calculation is performed with the upper limit standard SU being “+0.1 mm” and the lower limit standard SL being “−0.1 mm”. In this comparative experiment 1, if the numerical value of the process capability index Cpk is 1.33 or more, sufficient position accuracy is obtained, and if it is 1.33 or less, it is determined that the position accuracy is insufficient. Yes.

[Equation 1]
Cpk = (1-K). (SU-SL) / 6σ (1)

[Equation 2]
K = | ((SU + SL) / 2) -Gave | / ((SU-SL) / 2) (2)

The result of the comparative experiment 1 described in Table 1 will be described. First, in Comparative Example 1 in which alignment by the index unit 30 is not performed, the positional accuracy is the lowest, whereas in Comparative Example 2 in which the manufacturing procedure is changed, sufficiently high positional accuracy is obtained. I understand. On the other hand, in Example 1, although the positional accuracy is slightly improved as compared with Comparative Example 1, the process capability index Cpk does not reach the reference value (1.33), and sufficient positional accuracy is not obtained. This is considered to be because it is difficult to visually recognize the indicator portion 30 disposed further to the rear side of the alignment opening 31 as viewed from the operator because the indicator portion 30 is formed of a transparent electrode film. It is done. On the other hand, in Example 2, it can be seen that sufficiently high positional accuracy equal to or higher than that of Comparative Example 2 is obtained. This is because the indicator portion 30 is formed of a metal film having excellent light reflectivity, so that even if the indicator portion 30 is arranged on the further back side of the alignment opening 31, the operator can easily see the indicator portion 30. It is thought that it is due to being. In Example 1, it is possible to use the adhesive BL in the liquid state by performing the bonding operation of the liquid crystal panel 11 and the cover panel 12 first, and the adhesive tape as in Comparative Example 2. Compared with the case where the liquid crystal panel 11 and the cover panel 12 are bonded together, the cell gap of the liquid crystal panel 11 is less likely to cause an imbalance, and a high display quality can be obtained.

As described above, the liquid crystal display device (display device) 10 according to the present embodiment has a display unit AA that has a plate shape and can display an image on the plate surface, and a non-display unit NAA outside the display unit AA. A liquid crystal panel (display panel) 11 having one plate surface as the display surface 11D and the other plate surface as the opposite surface 110 is attached to the liquid crystal panel 11 so as to face the display surface 11D. A cover panel 12, a backlight device (illumination device) 13 that is attached to the liquid crystal panel 11 so as to face the opposite surface 110 and supplies light to the liquid crystal panel 11, and a non-display portion NAA of the liquid crystal panel 11 The indicator unit 30 disposed on the backlight device 13 and the backlight unit 13 are disposed at a position overlapping with at least a part of the non-display unit NAA in the liquid crystal panel 11 in a plan view and the opposite surface 11 A panel support frame (panel support member) 27 that supports the liquid crystal panel 11 in a form opposed to at least a part of the liquid crystal panel 11, and is opened at a portion that overlaps at least the index portion 30 in a plan view. A panel support frame 27 having an alignment opening 31 capable of aligning the liquid crystal panel 11 and the backlight device 13 in the direction along the plate surface of the liquid crystal panel 11 from the positional relationship with the index unit 30. .

In this way, when attaching the backlight device 13 to the liquid crystal panel 11 when assembling the liquid crystal display device 10, the indicator portion 30 disposed in the non-display portion NAA of the liquid crystal panel 11 is provided. The side opposite to the liquid crystal panel 11 side through the alignment opening 31 formed in the panel support frame 27 provided in the backlight device 13 and disposed at a position overlapping with at least a part of the non-display portion NAA in a plan view. Can be confirmed. That is, for example, even when the procedure of attaching the backlight device 13 after attaching the cover panel 12 to the liquid crystal panel 11 is taken first, the indicator portion 30 can be easily confirmed by the alignment opening 31. . At this time, the liquid crystal panel 11 and the backlight device 13 are aligned with high accuracy in the direction along the plate surface of the liquid crystal panel 11 from the positional relationship between the opening edge portion 31a of the alignment opening 31 and the indicator portion 30. Can do. Thereby, the light from the backlight device 13 can be appropriately supplied to the display unit AA of the liquid crystal panel 11, and, for example, when other components are incorporated in the liquid crystal display device 10, the light interferes with the components. Therefore, it is possible to obtain effects such as excellent reliability of the assembling work and less likely damage caused by assembling. According to this embodiment, the positional accuracy between the liquid crystal panel 11 and the backlight device 13 can be improved.

Also, an adhesive BL is provided that is disposed between the liquid crystal panel 11 and the cover panel 12 and adheres them. In this way, the adhesive BL in a liquid state is solidified while being arranged in a form of being interposed between the liquid crystal panel 11 and the cover panel 12, so that the liquid crystal panel 11 and the cover panel 12 are bonded to each other. Therefore, compared with the case where a tape-like adhesive member is used, the stress acting on the liquid crystal panel 11 can be relaxed, and thereby the display quality of the liquid crystal panel 11 can be kept high. it can. In addition, if the procedure of attaching the cover panel 12 after the backlight device 13 is attached to the liquid crystal panel 11 is taken, the adhesive BL in a liquid state may enter the backlight device 13, If the backlight device 13 is attached to the liquid crystal panel 11 after the liquid crystal panel 11 and the cover panel 12 are first bonded with the adhesive BL, the occurrence of such a problem can be avoided in advance. .

Further, the cover panel 12 is formed with a light blocking portion 12a that blocks light at least in a range overlapping with the non-display portion NAA of the liquid crystal panel 11 when viewed in a plane. In this way, the display quality relating to the image displayed on the display unit AA by blocking the light by the light shielding unit 12a formed in a range overlapping with at least the non-display unit NAA in the plan view of the cover panel 12. Can be higher. When such a light-shielding portion 12a is formed on the cover panel 12, when assembling the liquid crystal display device 10, for example, the procedure of attaching the backlight device 13 after attaching the cover panel 12 to the liquid crystal panel 11 first is taken. In this case, the indicator unit 30 cannot be viewed through the cover panel 12 when the backlight device 13 is attached. In that respect, by setting the panel support frame 27 to have the alignment opening 31 as described above, the indicator 30 can be easily confirmed from the opposite side of the liquid crystal panel 11 through the alignment opening 31. Therefore, the liquid crystal panel 11 and the backlight device 13 can be aligned with high accuracy in the direction along the plate surface of the liquid crystal panel 11.

In addition, it is provided with a panel adhesive tape (panel adhesive member) 28 which is arranged between the panel support frame 27 and the liquid crystal panel 11 and is adhered to both, and the panel adhesive tape 28 includes: A panel adhesive tape side opening (panel adhesive member side opening) 32 communicating with the alignment opening 31 is formed therethrough. In this manner, when the backlight device 13 is attached to the liquid crystal panel 11, the panel adhesive tape 28 interposed between the panel support frame 27 and the liquid crystal panel 11 is adhered to both. . Since the panel adhesive tape side opening 32 communicating with the alignment opening 31 is formed through the panel adhesive tape 28, when attaching the backlight device 13 to the liquid crystal panel 11, The indicator 30 can be confirmed through the alignment opening 31 and the panel adhesive tape side opening 32. Thereby, the liquid crystal panel 11 and the backlight device 13 can be aligned with high accuracy in the direction along the plate surface of the liquid crystal panel 11.

Further, the index unit 30 is arranged on the display surface 11D side of the liquid crystal panel 11. In this way, the indicator portion 30 is arranged on the opposite side of the liquid crystal panel 11 from the panel adhesive tape 28 side. Since it becomes difficult for the adhesive tape 28 to adhere to the indicator portion 30 to occur, the indicator portion 30 is less likely to be peeled off.

Further, the backlight device 13 includes an LED (light source) 22 that emits light, a light incident surface 24 a that is opposed to the LED 22 and into which the light from the LED 22 is incident, and an opposite surface 110 of the liquid crystal panel 11. The light guide plate 24 having a light exit surface 24b that emits light toward the liquid crystal panel 11 and the plate surface 24c opposite to the light exit surface 24b side of the light guide plate 24 and covering the liquid crystal panel 11 Among them, a reflection sheet (reflection member) 26 that is arranged so as to overlap with at least a part of the non-display portion NAA in a plan view and reflects light toward the light emission surface 24 b side is provided. Is formed by penetrating a reflection sheet side opening (reflection member side opening) 33 communicating with the alignment opening 31. In this way, the light emitted from the LED 22 is incident on the light incident surface 24a of the light guide plate 24 facing the LED 22 and propagates through the light guide plate 24, so that the light output surface 24b of the light guide plate 24 is transmitted. Is reflected toward the light exit surface 24b by the reflection sheet 26 covering the opposite surface of the plate, and is emitted from the light exit surface 24b and applied to the liquid crystal panel 11. The reflection sheet 26 is arranged so as to overlap with at least a part of the non-display portion NAA in the liquid crystal panel 11 in a plan view, but the reflection sheet side opening communicated with the alignment opening 31 included in the panel support frame 27. Since the portion 33 is formed so as to penetrate therethrough, the indicator portion 30 is confirmed from the opposite side to the liquid crystal panel 11 side through the reflection sheet side opening 33 and the alignment opening portion 31, whereby the plate surface of the liquid crystal panel 11 is formed. The liquid crystal panel 11 and the backlight device 13 can be aligned with high accuracy in the direction along.

Further, the panel support frame 27 is formed with an alignment opening 31 at a position where the light guide plate 24 and the light guide plate 24 do not overlap with each other. In this way, since it is not necessary to provide the light guide plate 24 with an opening communicating with the alignment opening 31, it is possible to obviate the problem of light leakage that is a concern when such an opening is provided. Can do.

In addition, a casing (housing member) 14 that is attached to the panel support frame 27 with the reflection sheet 26 interposed therebetween, and a casing that is arranged between the casing 14 and the reflection sheet 26 and adheres to both. Adhesive casing 29 (casing adhesive member), and the casing adhesive tape 29 has a casing adhesive tape side opening communicating with the alignment opening 31 (housing adhesive member side opening). 34 is formed through. In this way, the casing adhesive tape 29 disposed between the casing 14 and the reflection sheet 26 and adhered to the casing 14 is attached to the casing adhesive tape side opening communicating with the alignment opening 31. Since the portion 34 is formed so as to penetrate, when attaching the backlight device 13 to the liquid crystal panel 11, the indicator portion 30 is confirmed through the alignment opening 31 and the casing adhesive tape side opening 34. Can do. Thereby, the liquid crystal panel 11 and the backlight device 13 can be aligned with high accuracy in the direction along the plate surface of the liquid crystal panel 11.

Further, the indicator portion 30 is made of a light reflective material that reflects light. In this way, when the indicator portion 30 is confirmed through the alignment opening 31 of the panel support frame 27, the indicator portion 30 made of a light-reflective material reflects light, so that the indicator portion 30 can be made easier. Can be confirmed. Thereby, the liquid crystal panel 11 and the backlight device 13 can be aligned with higher accuracy in the direction along the plate surface of the liquid crystal panel 11.

Further, the indicator portion 30 is made of a metal film that specularly reflects light. In this way, when the indicator portion 30 is confirmed through the alignment opening 31 of the panel support frame 27, the indicator portion 30 made of a metal film specularly reflects the light so that the indicator portion 30 can be more easily confirmed. can do.

Further, in the liquid crystal panel 11, a TFT (switching element) 16 made of at least a part of a metal film, and a gate wiring 18 and a source wiring 19 (wiring portion) connected to the TFT 16 are formed on the plate surface on the display surface 11D side. The indicator substrate 30 is disposed on the plate surface on the display surface 11D side of the array substrate 11b, and at least part of the TFT 16, the gate wiring 18 and the source wiring 19 is provided. It consists of a membrane. In this way, when the array substrate 11b is manufactured, the same metal film is formed in the step of forming the metal film forming at least part of the TFT 16, the gate line 18 and the source line 19 on the plate surface on the display surface 11D side. The indicator part 30 which consists of can be formed. As a result, a dedicated process for forming the index portion 30 is not required, and therefore it is possible to reduce manufacturing facilities and tact time.

The display panel is a liquid crystal panel 11 in which liquid crystal is sealed between a pair of

substrates

11a and 11b. Such a liquid crystal display device 10 can be applied to various applications, for example, displays such as portable information terminals and in-vehicle information terminals.

<Embodiment 2>
A second embodiment of the present invention will be described with reference to FIG. In this Embodiment 2, what changed the planar shape of the alignment opening part 131 is shown. In addition, the overlapping description about the same structure, an effect | action, and effect as above-mentioned Embodiment 1 is abbreviate | omitted.

As shown in FIG. 14, the alignment opening 131 according to the present embodiment has a substantially oval shape that is horizontally long when viewed in a plan view. Specifically, the alignment opening 131 has a pair of linear portions 131a1 whose opening edge portions 131a extend along the X-axis direction and a pair of arc-shaped portions 131a2 that connect between the ends of both linear portions 131a1. The linear portion 131a1 has a relatively longer extension distance than the arcuate portion 131a2. The distance between the linear portion 131a1 and the top portion 130a of the indicator portion 130 that is opposed to the linear portion 131a1 in a plan view is flat with respect to the circular arc portion 131a2 of the arc portion 131a2 and the indicator portion 130. However, the distance between the opening edge portion 31a of the alignment opening portion 31 and the top portion 30a of the indicator portion 30 described in the first embodiment is relatively smaller than the distance between the opposite top portion 130a. The distance is approximately the same (see FIG. 10). Therefore, the distance between the arcuate portion 131a2 and the top portion 130a of the indicator portion 130 facing the arcuate portion 131a2 in plan view is the opening edge of the alignment opening 31 described in the first embodiment. It is relatively larger than the distance between the portion 31 a and the top portion 30 a of the indicator portion 30.

<Comparison experiment 2>
Here, a comparative experiment 2 relating to the mounting operation of the liquid crystal panel and the backlight device will be described. The comparative experiment 2 is the same as the comparative experiment 1 except that the planar shape of the positioning opening 131 is changed to that described above, and the results are shown in Table 2. Comparative Examples 3 and 4 listed in Table 2 are the same as Comparative Examples 1 and 2 of Comparative Experiment 1, respectively, except that the planar shape of the positioning opening 131 is changed to that described above. Examples 3 and 4 listed in Table 2 are the same as Examples 1 and 2 of Comparative Experiment 1, respectively, except that the planar shape of the positioning opening 131 is changed to that described above. The numerical values described in each column of Table 2 were obtained in the same manner as the numerical values described in Table 1 of Comparative Experiment 1.

The result of the comparative experiment 2 described in Table 2 will be described. In Comparative Examples 3 and 4 and Example 3, the positional accuracy is worse than the result of Comparative Experiment 1 (see Table 1), whereas in Example 4, the position is higher than the result of Comparative Experiment 1. It can be seen that the accuracy has improved. This is because the interval between the opening edge portion 131a of the alignment opening portion 131 and the top portion 130a of the indicator portion 130 is different between the X-axis direction and the Y-axis direction only when the indicator portion 130 is formed of a metal film. This is considered to be because it is easier for the worker to visually recognize.

<Embodiment 3>
Embodiment 3 of the present invention will be described with reference to FIG. In the third embodiment, the planar shape of the index unit 230 is changed from the first embodiment. In addition, the overlapping description about the same structure, an effect | action, and effect as above-mentioned Embodiment 1 is abbreviate | omitted.

As shown in FIG. 15, the indicator 230 according to the present embodiment has a star shape in plan view. The indicator portion 230 has five top portions 230a projecting outward, and the top portions 230a are arranged at substantially equal angular intervals. The distances between the respective top portions 230a and the facing portion of each of the opening edge portions 231a of the alignment opening portion 231 having a circular shape when viewed in plan are opposed to the respective top portions 230a, and have the same size.

<Embodiment 4>
A fourth embodiment of the present invention will be described with reference to FIG. 16 or FIG. In this Embodiment 4, what changed the magnitude | size of the reflection sheet side opening part 333 and the adhesive tape side opening part 334 for casings is shown. In addition, the overlapping description about the same structure, an effect | action, and effect as above-mentioned Embodiment 1 is abbreviate | omitted.

As shown in FIGS. 16 and 17, the reflective sheet side opening 333 and the casing adhesive tape side opening 334 formed in the reflective sheet 326 and the casing adhesive tape 329 according to the present embodiment are positioned in the radial dimension. The size is larger than the mating opening 331. Accordingly, the opening edge 331a of the alignment opening 331 communicating with the reflection sheet side opening 333 and the casing adhesive tape side opening 334 is disposed, and the indicator 330 is disposed inside the opening edge 331a. It is the composition which becomes. In this way, when the reflective sheet 326 and the casing adhesive tape 329 are attached, the reflective sheet side opening 333 and the casing adhesive tape side opening 334 are slightly displaced with respect to the alignment opening 331. Therefore, the working efficiency can be improved.

<Embodiment 5>
A fifth embodiment of the present invention will be described with reference to FIG. In the fifth embodiment, the planar shape of the index portion 430 is changed from the first embodiment described above. In addition, the overlapping description about the same structure, an effect | action, and effect as above-mentioned Embodiment 1 is abbreviate | omitted.

As shown in FIG. 18, the indicator portion 430 according to the present embodiment has a square planar shape. The indicator portion 430 has four top portions 430a, and each of the top portions 430a and a portion facing the top portion 430a of the opening edge portion 431a of the alignment opening portion 431 having a circular shape when seen in a plan view. Are all the same and have a constant size.

<Embodiment 6>
A sixth embodiment of the present invention will be described with reference to FIG. In the sixth embodiment, the planar shape of the index portion 530 and the alignment opening 531 is changed from the above-described first embodiment. In addition, the overlapping description about the same structure, an effect | action, and effect as above-mentioned Embodiment 1 is abbreviate | omitted.

As shown in FIG. 19, the index portion 530 according to the present embodiment has a circular planar shape, while the alignment opening 531 has a square planar shape. The opening edge 531a of the alignment opening 531 has four corners 531a1, and the distance between each corner 531a1 and the portion of the index part 530 that faces each corner 531a is all Identical and constant size.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In each of the above-described embodiments, the case where the operator performs the alignment operation by directly viewing the index portion is shown. However, the opening edge portion of the index portion and the alignment opening is imaged by the camera, and the imaging is performed. The positional relationship between the index portion and the opening edge portion may be detected by performing image processing on the processed image, and the quality may be automatically determined. Also, the operator may visually check the image captured by the camera, and the operator may determine whether the image is good or bad.

(2) In each of the above-described embodiments, the case where the index portion is formed by a metal film of a gate wiring or a source wiring that the array substrate originally has is shown. It is also possible to form an indicator part.

(3) In each of the above-described embodiments, the case where the index portion is formed of a metal film is shown. However, as described in Examples 1 and 3 in each comparative experiment, the index is formed by a transparent electrode film made of the same material as the pixel electrode. It is also possible to form a part. In that case, it is preferable to form the transparent electrode film forming the index portion in the same process as the film forming process of the transparent electrode film forming the pixel electrode in the manufacturing process of the array substrate.

(4) In each of the above-described embodiments, the case where the index portion is formed of a metal film is shown. However, in addition to the metal film, for example, the index portion is formed by applying or printing a predetermined color paint on the surface of the liquid crystal panel. It is also possible to form. In this case, the color of the coating material serving as the index portion is preferably white or silver because of excellent light reflectivity.

(5) In each of the above-described embodiments, the case where the index portion is disposed in a portion of the array substrate that does not overlap with the CF substrate in a plan view is shown. It is also possible to arrange the indicator part in the overlapping part.

(6) In each of the embodiments described above, the case where the index portion is provided on the array substrate side of the liquid crystal panel is shown, but the index portion may be provided on the CF substrate side. In that case, for example, the indicator portion can be formed of the same material as that of any one of the black matrix inherent in the CF substrate and the colored portion of the color filter.

(7) In addition to the above-described embodiments, the specific planar shape of the index portion can be changed. For example, the planar shape of the indicator portion can be a triangle, rectangle, pentagon or more polygon, trapezoid, rhombus, ellipse, alphabet character type (A shape, T shape, H shape, etc.), etc. is there.

(8) Besides the above-described embodiments, the specific planar shape of the alignment opening can be changed. For example, the planar shape of the alignment opening may be a triangle, rectangle, pentagon or more polygon, trapezoid, rhombus, ellipse, or the like. The same applies to the planar shape related to other openings (panel adhesive tape side opening, reflection sheet side opening, casing adhesive tape side opening, and protective film side opening) communicating with the alignment opening. Can be changed.

(9) In each of the above-described embodiments, the case where the alignment opening is formed in a through-hole shape that opens the panel support frame only in the thickness direction has been described. However, the alignment opening has a thickness of the panel support frame. In addition to the direction, at least one of the X-axis direction and the Y-axis direction is also included in the present invention. In that case, the opening edge portion of the alignment opening portion is formed in an end ring shape when viewed in a plane. In addition, other openings (panel adhesive tape side opening, reflection sheet side opening, casing adhesive tape side opening and protective film side opening) communicating with the alignment opening can be similarly changed. is there.

(10) In each of the embodiments described above, the planar shape of the alignment opening, and the panel adhesive tape side opening, the reflective sheet side opening, the casing adhesive tape side opening, and the protective film side opening communicated therewith. Although the case where the planar shape is the same shape or a similar shape is shown, the planar shape of both may be completely different as long as part or all of the alignment opening is not blocked.

(11) In each of the above-described embodiments, the panel adhesive tape side opening, the reflection sheet side opening, and the casing adhesive tape are applied to the panel adhesive tape, the reflective sheet, the casing adhesive tape, and the protective film, respectively, of the backlight device. In the case where the side opening and the protective film side opening are formed, the panel adhesive tape, the reflective sheet, the casing adhesive tape, and the protective film include those that do not overlap with the indicator portion in plan view. The non-overlapping parts may be configured not to form openings. Conversely, if the components other than the panel adhesive tape, the reflective sheet, the casing adhesive tape, and the protective film among the components of the backlight device overlap when viewed in a plane with the indicator portion, the alignment opening on the component It is preferable to form an opening communicating with each other.

(12) In Embodiment 4 described above, the reflective sheet side opening and the casing adhesive tape side opening (protective film side opening) have been shown to be larger in diameter than the alignment opening. Similarly, the diameter of the adhesive tape side opening can be made larger than that of the alignment opening.

(13) In addition to the embodiments described above, a touch panel (position information detection panel) can be added between the cover panel and the liquid crystal panel. In that case, an adhesive is provided between the cover panel and the touch panel. It is preferable that the touch panel and the liquid crystal panel are fixed with an adhesive. In addition, it is also possible to form a touch panel pattern on the cover panel and to have a touch panel function (position information detection function). As the touch panel pattern of the touch panel, it is possible to adopt a projection capacitive method, a surface capacitive method, a resistive film method, an electromagnetic induction method, or the like.

(14) In addition to the above-described embodiments, a parallax barrier panel can be added between the cover panel and the liquid crystal panel. In that case, the cover panel and the parallax barrier panel are fixed with an adhesive. It is preferable to fix the parallax barrier panel and the liquid crystal panel with an adhesive. The parallax barrier panel has a parallax barrier pattern for allowing an observer to observe a stereoscopic image (3D image, three-dimensional image) by separating an image displayed on the display surface of the liquid crystal panel by parallax. If a liquid crystal panel is used as the parallax barrier panel, it is possible to switch between a planar image (2D image, two-dimensional image) and a stereoscopic image. It is also possible to form a parallax barrier pattern on the cover panel and to have a parallax barrier function.

(15) In each of the above-described embodiments, the case where an ultraviolet curable resin material that is cured by ultraviolet rays is used as an adhesive material for fixing the liquid crystal panel and the cover panel is used. It is also possible to use a curing type photocurable resin material. In addition, it is also possible to use a solvent-based adhesive.

(16) In each of the above-described embodiments, the cross-sectional shape of the panel support frame has a three-step shape, but the number of steps in the cross-sectional shape of the panel support frame can be changed as appropriate, for example, the first step And the third step portion can be omitted.

(17) In each of the above-described embodiments, the case where the backlight device and the liquid crystal panel are attached by the panel adhesive tape has been described. However, the backlight is obtained by a method other than the adhesive tape (for example, screwing or riveting). You may make it fix an apparatus and a liquid crystal panel to an attachment state.

(18) In each of the above-described embodiments, the panel support frame is formed in a frame shape. For example, the panel support frame has a substantially box shape opened on the front side, and the light guide plate and the reflection sheet are arranged on the back side by the bottom. It is also possible to adopt a configuration that supports the above. In that case, the LED substrate may be supported from the back side by the bottom of the panel support frame.

(19) In each of the above-described embodiments, the color portion of the color filter included in the liquid crystal panel is exemplified as three colors of R, G, and B. However, the color portion may be four or more colors.

(20) In each of the above-described embodiments, an LED is used as the light source, but other light sources such as a cold cathode tube may be used.

(21) In the above-described embodiments, the panel support frame is made of a synthetic resin, but the panel support frame may be made of metal.

(22) In each of the above-described embodiments, the case where the tempered glass subjected to the chemical tempering treatment is used as the cover panel is shown. It is.

(23) In each of the above-described embodiments, the cover panel using the tempered glass is shown. However, it is of course possible to use a normal glass material (non-tempered glass) or a synthetic resin material that is not tempered glass.

(24) In each of the above-described embodiments, the edge light type is exemplified as the backlight device included in the liquid crystal display device, but the present invention includes a backlight device of a direct type.

(25) In each of the above-described embodiments, a liquid crystal display device having a vertically long display screen is exemplified, but a liquid crystal display device having a horizontally long display screen is also included in the present invention. A liquid crystal display device having a square display screen is also included in the present invention.

(26) In each of the embodiments described above, a TFT is used as a switching element of a liquid crystal display device. However, the present invention can be applied to a liquid crystal display device using a switching element other than TFT (for example, a thin film diode (TFD)), and color In addition to the liquid crystal display device for display, the present invention can also be applied to a liquid crystal display device for monochrome display.

DESCRIPTION OF SYMBOLS 10 ... Liquid crystal display device (display apparatus), 11 ... Liquid crystal panel (display panel), 11a ... CF board | substrate (board | substrate), 11b ... Array board | substrate (board | substrate), 11D ... Display surface, 110 ... Opposite side surface, 12 ... Cover panel, 12a ... light-shielding part, 13 ... backlight device (illumination device), 14 ... casing (housing member), 16 ... TFT (switching element), 18 ... gate wiring (wiring part), 19 ... source wiring (wiring part), 22 ... LED (light source), 24 ... light guide plate, 24a ... light incident surface, 24b ... light emitting surface, 24c ... plate surface, 26,326 ... reflective sheet (reflective member), 27 ... panel support frame (panel support member) 28 ... Panel adhesive tape (panel adhesive member), 29, 329 ... Casing adhesive tape (housing adhesive member), 30, 130, 230, 330, 430, 530 ...

Indicator section

31, 131, 231, 331, 431, 531 ... alignment opening, 32 ... panel adhesive tape side opening (panel adhesive member side opening), 33, 333 ... reflection sheet side opening (reflection member side opening) Part), 34, 334 ... casing adhesive tape side opening (housing member side opening for casing), AA ... display part, BL ... adhesive, NAA ... non-display part

Claims

It has a plate-like display part that can display an image on its plate surface, and a non-display part outside the display part, and one plate surface is the display surface, whereas the other plate surface is the opposite surface A display panel,
A cover panel attached to the display panel so as to face the display surface;
An illuminating device attached to the display panel so as to face the opposite surface and supplying light to the display panel;
An indicator portion arranged in the non-display portion of the display panel;
The display device is provided in the illuminating device, is arranged at a position overlapping with at least a part of the non-display portion in a plan view, and supports the display panel so as to face at least a part of the opposite surface. It is a panel support member, and is opened at least in a portion overlapping with the indicator portion in plan view, and the display panel in a direction along the plate surface of the display panel from the positional relationship between the opening edge portion and the indicator portion And a panel support member having an alignment opening capable of aligning the illumination device.
The display device according to claim 1, further comprising an adhesive disposed between the display panel and the cover panel so as to adhere the two.
3. The display device according to claim 1, wherein the cover panel is formed with a light shielding portion that blocks light at least in a range overlapping with the non-display portion of the display panel in a plan view.
It is provided with an adhesive member for a panel that is arranged between the panel support member and the display panel and is adhered to both,
The display device according to any one of claims 1 to 3, wherein the panel adhesive member is formed with a panel adhesive member side opening that communicates with the alignment opening.
The display device according to claim 4, wherein the indicator section is arranged on the display surface side of the display panel.
The illumination device includes a light source that emits light, a light incident surface that is opposed to the light source and is incident on the light incident surface on which light from the light source is incident, and the opposite surface of the display panel. A light guide plate having a light output surface that emits light toward the display panel, and a plate surface opposite to the light output surface side of the light guide plate, and at least a part of the non-display portion of the display panel And a reflecting member that is arranged so as to overlap in a plan view and reflects light to the light exit surface side, and
6. The display device according to claim 1, wherein at least the reflection member is formed with a reflection member side opening that communicates with the alignment opening.
The display device according to claim 6, wherein the alignment opening is formed in the panel support member at a position where the light guide plate does not overlap with the light guide plate.
A casing member that is attached to the panel support member with the reflecting member interposed therebetween, and an adhesive member for the casing that is disposed between the casing member and the reflecting member and adheres to both And
8. The display device according to claim 6, wherein the housing adhesive member has an opening on the housing adhesive member side communicating with the alignment opening.
The display device according to any one of claims 1 to 8, wherein the indicator portion is made of a light reflective material that reflects light.
The display device according to claim 9, wherein the indicator portion is made of a metal film that specularly reflects light.
Each of the display panels has a switching element at least a part of which is made of a metal film, and an array substrate in which a wiring portion connected to the switching element is formed on a plate surface on the display surface side,
11. The display device according to claim 9, wherein the indicator portion is made of a metal film that is disposed on a plate surface on the display surface side of the array substrate and constitutes at least a part of the switching element and the wiring portion. .
The display device according to any one of claims 1 to 11, wherein the display panel is a liquid crystal panel in which liquid crystal is sealed between a pair of substrates.