CN104880858A - Electronic device, and display device and control device having the same - Google Patents
Electronic device, and display device and control device having the same Download PDFInfo
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- CN104880858A CN104880858A CN201410474718.4A CN201410474718A CN104880858A CN 104880858 A CN104880858 A CN 104880858A CN 201410474718 A CN201410474718 A CN 201410474718A CN 104880858 A CN104880858 A CN 104880858A
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- light
- guide plate
- light guide
- substrate
- light source
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
Abstract
The invention provides an electronic device, and display device and control device having the same for efficiently introducing light emitted from a light source part to the inside of a light guide panel so as to increase the utilization of light. According to the invention, a temperature regulator comprises a control substrate (21), a LED (22), a reflection film (23) and a light guide panel (24), wherein the LED (22a,22b) is mounted on the control substrate and emits light along a direction parallel to a surface of the control substrate. The reflection film is arranged at an interval on the control substrate adjacent to the LED, and reflects light in a direction crossing the control substrate. The light guide panel is arranged on the reflection film and is provided with a protrusion part (25) which is inside a gap formed between an end surface on the light emitting side of the LED and an end surface of the reflection film and is opposite to the end surface on the light emitting side of the LED. The light guide panel introduces light emitted from the LED from a side surface (24a) of the protrusion part and emits light on a front surface (24b) in an area light emitting manner.
Description
Technical field
The present invention relates to the electronic equipment be arranged in such as temperature regulator, timer, counter etc. and the display device, the opertaing device that possess this electronic equipment.
Background technology
In recent years, be assembled into the upper and mode becoming the temperature of expectation with the temperature of the workpiece becoming controlled target temperature such as the control panel of external unit to carry out temperature controlled temperature regulator and used.
Such temperature regulator mainly possesses control part, display device and input part, described control part becomes the design temperature of regulation mode with the temperature of the workpiece becoming controlled target temperature carries out switch control rule to well heater, described display device display setting temperature, observed temperature etc., described input part carries out various setting input according to the observed temperature etc. shown in display device.
Such as, Patent Document 1 discloses following structure, that is, the part of the display unit of temperature regulator possesses: substrate; Be arranged on the LED (light source portion) on substrate; Be arranged on the reflective film of the position adjacent with LED on substrate; Be arranged on the light guide plate on reflective film; And irradiate the display panels of light in the mode that face is irradiated from light guide plate.
Patent documentation 1: Jap.P. mandate No. 5348158 publication
But, in above-mentioned existing temperature regulator, there is problem shown below.
That is, in temperature regulator disclosed in above-mentioned publication, plane reflective film is provided with in the front for making the light of the LED be arranged on substrate carry out the opening portion irradiated.Therefore, overlapping on reflective film have in the structure of flat light guide plate, and light guide plate is configured in the position of the thickness of distance substrate reflective film.
Now, light guide plate can not be configured in the position covering and be used for the whole front of the opening portion of the light of irradiation LED.Therefore, expeditiously the light that the opening portion from the light being used for irradiation LED is irradiated can not be taken into the inside of light guide plate, likely reduce the utilization ratio of the light from LED illumination.
Summary of the invention
A kind of light guide plate inside that can be taken into by the light irradiated from light source portion is expeditiously the object of the present invention is to provide to improve the electronic equipment of the utilization ratio of light and possess display device, the opertaing device of this electronic equipment.
The electronic equipment of the 1st technical scheme possesses substrate, light source portion, plane reflecting part and flat light guide plate.Light source portion is arranged on substrate, and light is irradiated on the surface along substrate.The position that the light that plane reflecting part is arranged on substrate in the mode separating predetermined distance with light source portion is adjacent with source portion, to the direction reflected light intersected with substrate.Flat light guide plate is configured on reflecting part.Light guide plate has teat, and described teat is projected into be penetrated in the gap that formed between the end face of side and the end face of the reflecting part relative with this end face in the illumination of light source portion.Light guide plate is taken into the light from light source portion irradiation from the side comprising teat and the light-emitting area in the side contrary with reflecting part side is luminous in the mode of face luminescence.
At this, the light irradiated along the surface of substrate from the light source portion be arranged on substrate is being taken into light guide plate inside, on the upper surface of the plane reflecting part that described light guide plate laminated configuration configures on substrate, and be provided with teat in the electronic equipment irradiated in the mode that face is irradiated to desired orientation, described teat be make a part for light guide plate be projected between light source portion on substrate and reflecting part gap in and formed.
At this, light source portion comprises LED etc.In addition, reflecting part is included in the part etc. the parts of the film-form of the reflecting surface on the surface with light, substrate being coated with and being applied to the coating of reflected light etc.
Thus, even light guide plate is configured in the structure of the position exceeding the thickness of reflecting part than light source portion, also the teat of the part as light guide plate can be set to the front being used for irradiating the opening portion of light to the light source portion not configuring light guide plate.
Thereby, it is possible to light guide plate the lateral parts comprising teat be taken into the light irradiated from the light source portion that is installed to substrate.Consequently, more efficiently can be taken into the light irradiated from light source portion than ever, the utilization ratio of light is provided.
The feature of the electronic equipment of the 2nd technical scheme is, in the electronic equipment of the 1st technical scheme, teat has dip plane, and the direction that described dip plane is left from the surface of substrate from light source portion side towards reflecting part side direction tilts.
Here, the teat being formed as a part for light guide plate comprises cleaning surface, this dip plane is from light source portion side towards reflecting part side, direction (direction close to light-emitting area) to the surface away from substrate tilts, namely from reflecting part side towards light source portion side, the direction (direction away from light-emitting area) to the surface close to substrate tilts.
Thus, the light irradiated from light source portion along substrate surface runs into the light-emitting area side that dip plane is reflected to light guide plate.Consequently, the photoconduction of light guide plate inside will can be taken into by teat to the desired orientation being such as configured with display panel etc.
The feature of the electronic equipment of the 3rd technical scheme is, in the electronic equipment of the 1st or the 2nd technical scheme, dip plane has being greater than 0 degree and degree of tilt in the scope of less than 45 degree relative to the surface of described substrate.
Here, be above-mentioned scope by the angle initialization of the dip plane forming teat, described teat is formed as a part for light guide plate.
Thus, dip plane is configured to become obtuse angle with the direction of illumination of light, therefore, it is possible to the light preventing from being taken into light guide plate inside by the teat injection such as from the side of light guide plate.Consequently, in teat, the light being taken into light guide plate inside can be guided to the direction expected, improve the utilization ratio of light.
The feature of the electronic equipment of the 4th technical scheme is, in the electronic equipment any one of the 1st to the 3rd technical scheme, teat is outstanding to substrate side from the surface by reflecting part side of light guide plate, and overhang is the thickness of reflecting part.
Here, the overhang making teat outstanding to substrate-side is equivalent to the thickness of reflecting part.
Thus, even be configured in the structure of the position of the thickness from substrate rising reflecting part in light guide plate, also the teat of the part being formed as light guide plate can be set to the position that the front of the opening portion of side is penetrated in the illumination covering the light source portion be installed on substrate.
Its result, the light illumination from light source portion can being penetrated opening irradiation is taken into the inside of light guide plate efficiently.Thus, compared with the past, the utilization ratio of light can be improved.
The feature of the electronic equipment of the 5th technical scheme is, in the electronic equipment according to any one of the 1st to the 4th technical scheme, teat is projected into the surface of substrate in the mode in the front covering the opening portion for irradiating light of light source portion.
Here, teat is made to be projected into the position in the front of the opening portion for irradiating light covering light source portion, i.e. the surface of substrate.
In addition, say from the strict sense, the surface that teat is projected into substrate does not refer to and the surface contact with substrate comprises the structure of the near surface being projected into substrate yet.
Thus, even be configured in the structure of the position of the thickness from substrate rising reflecting part in light guide plate, also the teat of the part being formed as light guide plate can be set to the position that the front of the opening portion of side is penetrated in the illumination covering the light source portion be arranged on substrate.
Its result, the light illumination from light source portion can being penetrated opening irradiation is taken into the inside of light guide plate expeditiously.Thus, compared with the past, the utilization ratio of light can be improved.
The feature of the electronic equipment of the 6th technical scheme is, in the electronic equipment according to any one of the 1st to the 5th technical scheme, light guide plate also has incised notch portion, described incised notch portion is formed in the side by light source portion side of light guide plate and the part of light-emitting area intersection, and described incised notch portion makes a part for light-emitting area recessed.
Here, the part that the side being namely formed with teat side in the light source portion side of light guide plate and light-emitting area are intersected is provided with the incised notch portion of concavity.
Thus, the part of being intersected by the side being formed with teat side in light guide plate and light-emitting area arranges incised notch portion, just the light that upper backward tops such as reflexing to the dip plane of teat from light source portion is missed can be closed to light guide plate inside by incised notch portion.Consequently, the light being taken into light guide plate inside in teat can be prevented to be leaked to outside, thus improve the utilization ratio of light.
The feature of the electronic equipment of the 7th technical scheme is, in the electronic equipment of the 6th technical scheme, also possess reflection framework, described reflection framework surrounds the periphery of light guide plate, and be configured in and be formed in the incised notch portion of light guide plate, make the light being taken into light guide plate inside in light guide plate internal reflection.
Here, the reflection framework for the periphery, side and incised notch portion covering light guide plate is provided with.
Thus, cover the periphery of light guide plate and the reflection framework in incised notch portion by arranging, just the side from light guide plate can be injected to outside light and reflex to the dip plane etc. of teat from light source portion and the light escaping to top by incised notch portion and reflect framework and be closed to light guide plate inside.Consequently, can prevent the light being taken into light guide plate inside in teat from draining to outside, thus improve the utilization ratio of light.
The display device of the 8th technical scheme, possesses the electronic equipment according to any one of the 1st to the 6th technical scheme; And the display panel of the illuminated light sent in the mode of face luminescence from light guide plate.
Here, possess the display device of above-mentioned electronic equipment, irradiate from the face being configured with display panel side the light being taken into light guide plate from the side.
Thereby, it is possible to the display device that the utilization ratio obtaining the light irradiated from light source portion is high.
The opertaing device of the 9th technical scheme possesses: the display device of the 8th technical scheme; And the input part of various setting is inputted according to the measured value shown in display device, setting value.
Here, the opertaing device of the display device possessing above-mentioned electronic equipment is installed, according to measured value, the setting value of display device display, carries out various setting input.
Thus, the opertaing device be provided with from the high display device of the utilization ratio of the light of light source portion irradiation can just be obtained.
According to electronic equipment of the present invention, the light that can more efficiently be taken into from light source portion irradiation compared with the past, improves the utilization ratio of light.
Accompanying drawing explanation
Fig. 1 is the integrally-built stereographic map of the temperature regulator representing an embodiment of the invention.
Fig. 2 is the exploded perspective view of the structure of the temperature regulator representing Fig. 1.
Fig. 3 is the exploded perspective view of the structure representing the display unit that the temperature regulator of Fig. 1 has.
Fig. 4 is the front view of the structure representing the LED that the display unit of Fig. 1 has.
Fig. 5 is the cut-open view of a part for the display unit being exaggerated Fig. 3.
Fig. 6 is the enlarged drawing of the part A of Fig. 5.
Fig. 7 be represent the light guide plate that the display unit being configured in Fig. 4 has side near LED and be formed in the vertical view of round dot pattern of light guide plate surface.
Fig. 8 is the stereographic map of the structure of the light guide plate that the display unit of Fig. 4 has.
Reference numeral
10 temperature regulators (opertaing device)
11 shell part
12 fore shells
12a display window
12b supporting frame
13 back covers
13a terminal base
14 protecgulums
20 display units (display device)
21 control substrate (substrate)
22a, 22b LED (light source portion)
22aa, 22ba end face
22ab, 22bb peristome
23 reflective films (reflecting part)
24 light guide plate
24a side
24b front surface (light-emitting area)
24c side
The 24d back side
24da ~ 24dd region
24e incised notch portion
25 teats
25a dip plane
26 reflection frameworks
26a sidewall portion
26b covering part
27 diffusion films
28 display panels (display panel)
28a design temperature display part
28b observed temperature display part
28c state display part
28d action button
29 display films
30 control base board unit
31 elastomer connectors
G gap
Embodiment
As described below, use Fig. 1 ~ Fig. 8 that the temperature regulator (opertaing device) 10 with the electronic equipment of an embodiment of the invention is described.
In addition, in the following description, as shown in Figure 1 and Figure 2, fore-and-aft direction refers to and the display screen side of the display panels 28 of temperature regulator 10 is set to front surface, its opposition side is set to direction time rear surface (back side).In addition, left and right directions refer to from front observe temperature regulator 10 display panels 28 display screen state left and right directions.
(structure of temperature regulator 10)
The temperature regulator 10 of present embodiment is assembled on the control panel being such as arranged at factory etc., receives the signal of the observed temperature representing the workpiece (controlled target temperature thing) detected by temperature sensor etc.Then, the heating units such as temperature regulator 10 control heater carry out temperature control, make the observed temperature of workpiece become design temperature.
More particularly, operation action button 28d (with reference to figure 1), the design temperature becoming control target temperature value is thus transfused to temperature regulator 10.Then, temperature regulator 10 by the design temperature of input and the observed temperature numerical monitor of workpiece in the viewing area of the display panels 28 of display unit 20.And then temperature regulator 10, according to the extent between design temperature and observed temperature, carries out switch control rule to heating units such as the well heaters for heated parts, carries out temperature control.
In addition, as shown in Figure 1 and Figure 2, temperature regulator 10 possesses: the roughly shell part 11 of rectangular parallelepiped; Be configured in the display unit (display device) 20 in shell part 11.
(shell part 11)
Shell part 11 is formed with the receiving space of collecting display unit 20 in the inside of roughly rectangular parallelepiped, and is provided with the display screen of display unit 20 in front face side.In addition, as shown in Figure 2, shell part 11 has fore shell 12, back cover 13 and protecgulum 14.
Fore shell 12 is parts of the part of the front face side forming shell part 11, as shown in Figure 2, has display window 12a, supporting frame 12b.
Display window 12a is formed in the opening portion of the front face side of fore shell 12, and being set to from outside can the state of display panels 28 of visual identification display unit 20 described later.
Supporting frame 12b is the multiple plate-shaped members formed in the mode extended to back cover 13 side from the rear side of protecgulum 14, and the claw-like part on top is fixed on and controls on base board unit 30, and described control base board unit 30 comprises the multiple substrates be configured in back cover 13.As shown in Figure 2, between the multiple plate-shaped members forming supporting frame 12b, be configured with each structure (display film 29, display panels 28, diffusion film 27, reflection framework 26, light guide plate 24, reflective film 23, LED22a, 22b, control substrate 21) of display unit 20 described later successively from the front face side of fore shell 12 towards rear side.
Back cover 13 is cartridges that front face side and rear side form opening, and as shown in Figure 2, the opening portion of side is provided with the terminal base 13a for being electrically connected with external unit by temperature regulator 10 overleaf.In addition, back cover 13 is built-in with the control base board unit 30 for being controlled external unit by terminal base 13a.And then back cover 13 is built-in with display unit 20 under the state be electrically connected with control base board unit 30.
Protecgulum 14 is arranged on the front surface of fore shell 12 in the mode of the display part covering the display panels 28 on fore shell 12.In addition, in order to, from sidelong glance above depending on identifying the display part of display panels 28 and can action button 28d being operated from front face side, use soft transparent resin etc. to form protecgulum 14.
(display unit 20)
Display unit 20 is the display device of carrying out the various displays relevant to temperature regulator 10, shows, and input setting value etc. by action button 28d to the observed temperature of above-mentioned controlled target temperature and workpiece, design temperature and state display etc.In addition, as shown in Figure 3, display unit 20 has: control substrate (substrate) 21, LED (light source portion) 22a, 22b, reflective film (reflecting part) 23, light guide plate 24, reflection framework 26, diffusion film 27, display panels (display panel) 28, display film 29 and control base board unit 30.
(controlling substrate 21)
Controlling substrate 21 is the plate-shaped members being located at most rear side in the parts forming display unit 20, as shown in Figure 3, be provided with the backlight as display panels 28 and LED (light source portion) 22a, 22b of arranging and control circuit, described control circuit carries out liquid crystal drive according to the various signals of input and controls and temperature regulable control etc.
(LED22a、22b)
LED22a, 22b, along one side (the right in Fig. 3) configuration controlled on substrate 21, irradiate light along the surface controlling substrate 21.More specifically, LED22a, 22b irradiate light to the side 24a of the light guide plate 24 be configured on reflective film 23.
In addition, as shown in Figure 4, LED22a, 22b have peristome 22ab, 22bb of irradiating light on end face 22aa, the 22ba relative with the side 24a of light guide plate 24.Peristome 22ab, 22bb have height h (such as 0.46mm) relative to the height H (such as 0.6mm) of LED22a, 22b.That is, the height h of peristome 22ab, 22bb is approximately 76.7% of the height H of LED22a, 22b.
And as shown in Figure 4, the bottom being located at peristome 22ab, the 22bb on end face 22aa, 22ba of LED22a, 22b is configured in the position of the part bottom in the short transverse of end face 22aa, 22ba.Therefore, LED22a, 22b are being directly installed in the structure controlled on substrate 21, the bottom irradiating peristome 22ab, 22bb of light is arranged on the near surface controlling substrate 21.
In addition, the side 24a of the light guide plate 24 of light incidence refers to and the face of relative side with LED22a, 22b in light guide plate 24.
(reflective film 23)
Reflective film 23 is parts of the film-form on surface with reflecting surface, and thickness is 0.10mm ~ 0.15mm.As shown in figs.5 and 6, reflective film 23 is arranged on the position adjacent with LED22a, 22b controlled on substrate 21.Reflective film 23 has the function of the direction reflected light to the surface crosswise with control substrate 21.
Specifically, reflective film 23 injects to the back side 24d from light guide plate 24 light controlling substrate 21 side and reflects, and reboots the inside of light guide plate 24.
Thus, by arranging reflective film 23 between control substrate 21 and light guide plate 24, the light quantity being irradiated to the viewing area of display panels 28 from front surface (light-emitting area) 24b relative with reflection framework 26 of light guide plate 24 just can be increased.Thus, the word, numeral etc. of the viewing area display of display panels 28 can be just presented at more significantly.
(light guide plate 24)
Light guide plate 24 is by the plate-like portion material of the transparent resin such as acrylic acid, polycarbonate injection moulding, has the thickness of about 1.5 ~ 3.0mm.In addition, as shown in figs.5 and 6, light guide plate 24 laminated configuration is controlling on the reflective film 23 that substrate 21 configures.Thus, and be arranged on LED22a, the 22b controlled on substrate 21 and compare, light guide plate 24 is configured in and controls substrate 21 surface at a distance of the position of the thickness of reflective film 23.
Here, the light irradiated from LED22a, 22b is taken into inside from the side 24a relative with LED22a, 22b by light guide plate 24, and make incident anaclasis by round dot pattern (anaclasis portion) (with reference to figure 7), described round dot pattern is formed in and controls on the surface of the back side 24d that substrate 21 is oppositely disposed.Thus, light guide plate 24 can irradiate roughly uniform light from the front surface 24b be oppositely disposed with display panels 28 in the mode that face is irradiated.
Here, in order to make the light general uniform on direction, face irradiated from the front surface 24b of light guide plate 24, as shown in Figure 7, the round dot pattern on the surface of the back side 24d being formed in light guide plate 24 is formed as, far away with the distance of LED22a, 22b, the density of round dot pattern is larger.Namely, in 4 regions 24da, 24db, 24dc, 24dd that side (side near LED22a, 22b) to the light quantity little side (side away from LED22a, 22b) large from light quantity configures, the dot density being formed in the round dot pattern on the surface of back side 24d becomes large stepsly.
Thus, the region that distance LED22a, 22b are far away, the dot density of round dot pattern is larger, therefore, just can strengthen the effect making anaclasis.Thus, even LED22a, 22b are located at the end of light guide plate 24 and the structure of the incident sideways light from light guide plate 24, what also can make to irradiate from the front surface of light guide plate 24 widely causes evenly.
In addition, as shown in Fig. 6 and Fig. 8, light guide plate 24 has in the upper end by display panels 28 side of the side 24a be oppositely disposed with LED22a, 22b the incised notch portion 24e one of front surface 24b being cut to concavity.
As shown in Fig. 6 and Fig. 8, incised notch portion 24e is the step part that the part of intersecting at side 24a and the front surface 24b of light guide plate 24 is formed, and is covered the upper surface by display panels 28 side of incised notch portion 24e by the part (covering part 26b) reflecting framework 26.
In addition, as shown in Figure 6, incised notch portion 24e prevents the rear side being incident to display panels 28 after the light irradiated obliquely upward from LED22a, 22b (in reference diagram double dot dash line) is through side 24a through not having the part of diffusion film 27.That is, the light irradiated obliquely upward from LED22a, 22b, after 24a enters in light guide plate 24 from the side, is reflected in the part of incised notch portion 24e, is returned in light guide plate 24.
In more detail, due to the part (covering part 26b) being partially submerged into reflection framework 26 at incised notch portion 24e, so the light inciding incised notch portion 24e part also turns back in light guide plate 24 in the white wall reflection of reflection framework 26 again.
Thereby, it is possible to prevent in light guide plate 24 by the end of LED22a, 22b side, the light irradiated obliquely upward from LED22a, 22b is not directly incident on the situation of the rear side of display panels 28 through diffusion film 27.
And then as shown in figs.5 and 6, light guide plate 24 has in the bottom of the side 24a relative with LED22a, 22b from back side 24d to controlling the outstanding teat 25 in substrate 21 side.
(teat 25)
As shown in figs.5 and 6, teat 25 is outstanding in the g of gap, and the illumination that this gap g is formed in LED22a, the 22b controlling configuration on substrate 21 is penetrated between the end face of side and the end face of reflective film 23.In other words, teat 25 is outstanding to control substrate 21 side from the back side 24d of light guide plate 24.
Teat 25 is equivalent to the thickness of reflective film 23 from the overhang that the back side 24d of light guide plate 24 gives prominence to.
Thereby, it is possible to teat 25 to be arranged on the near surface controlling substrate 21, therefore, it is possible to cover the front of peristome 22ab, 22bb for irradiating light of LED22a, 22b.Its result, the gap that the front that end face 22aa, 22ba of side is penetrated in the illumination of LED22a, the 22b that can be produced on reflective film 23 by teat 25 landfill light guide plate 24 laminated configuration is formed.
In addition, as shown in Figure 6, in sectional view, teat 25 is formed as the right-angle triangle being formed right angle portions by the extended line of the extended line of side 24a and back side 24d.
And then teat 25 has the dip plane 25a from reflective film 23 side direction LED22a, 22b side direction inclined downward.
Dip plane 25a is the face of hypotenuse of the right-angle triangle of the side section forming teat 25, and its angle of inclination is formed as and the scope of the surperficial angulation controlling substrate 21 at larger than 0 degree less than 45 degree.
Specifically, observe from LED22a, 22b side, dip plane 25a, from LED22a, 22b towards reflective film 23, tilts towards the direction (display panels 28 side) away from the surface controlling substrate 21.In other words, dip plane 25a, from LED22a, 22b towards reflective film 23, tilts to the direction near the front surface 25b becoming light-emitting area.
Thus, as shown in Figure 6, from the light (reference diagram cathetus arrow) that end face 22aa, 22ba of LED22a, 22b irradiate, reflected at the dip plane 25a slowly raised, therefore, it is possible to make these light enter in light guide plate 24 and penetrate from front surface 24b.
That is, in the present embodiment, in existing structure, can by can not be taken in light guide plate 24 from LED22a, 22b irradiate light, particularly from irradiate light peristome 22ab, 22bb control substrate 21 side irradiate light be taken into inside at teat 25.
Its result, owing to can the major part of the light irradiated from LED22a, 22b be taken in light guide plate 24, and irradiate from the mode that front surface 24b irradiates with face, so the joint efficiency that just can improve LED22a, 22b and light guide plate 24 compared with the past, thus improve the utilization ratio of the light irradiated from LED22a, 22b.
(reflection framework 26)
Reflection framework 26 is frame-shaped parts that the mode of the peripheral edge portion covering light guide plate 24 is formed, and is formed by white resin.
The surface reflection of outside light in reflection framework 26 to be leaked to from the peripheral edge portion of light guide plate 24, then be directed into the inside of light guide plate 24.
In addition, reflection framework 26 is mounted from the front surface 24b side of light guide plate 24, is locked in the outer edge of the front surface 24b side of light guide plate 24.And then reflection framework 26 has the sidewall portion 26a of frame-shaped; And the covering part 26b be configured on the incised notch portion 24e of light guide plate 24.
Sidewall portion 26a is the framework that the mode of the periphery surrounding light guide plate 24 configures, and as shown in Figure 5, is being layered under the state controlled on substrate 21, is configured in mode LED22a, 22b, reflective film 23, light guide plate 24 being placed in inner side.
Covering part 26b is the outshot formed in the mode extended to the inside from the one side of LED22a, 22b side of the framework being formed sidewall portion 26a, is configured to embed in the incised notch portion 24e of the end of the front surface 24b being formed at light guide plate 24.
Thus, by being configured in the covering part 26b of the reflection framework 26 on the incised notch portion 24e of light guide plate 24, can reflecting the light of the incised notch portion 24e part entered in light guide plate 24 and return to light guide plate 24 inside.Thereby, it is possible to prevent the end of the side adjacent with LED22a, 22b from light guide plate 24 from revealing light.
In addition, the degree of depth of the thickness of covering part 26b on the above-below direction shown in Fig. 6 and the incised notch portion 24e embedded by covering part 26b is roughly equal.
Thus, under the state that covering part 26b is embedded into incised notch portion 24e, as shown in figs.5 and 6, the upper surface of the front surface 24b of light guide plate 24 and display panels 28 side of covering part 26b forms the plane not having step.Its result, the diffusion film 27 of laminated configuration on the front surface 24b of light guide plate 24 can be configured in do not have step plane on.Thereby, it is possible to reduce the size on the thickness direction of display unit 20.
(diffusion film 27)
Diffusion film 27 is the parts for reducing the illuminance inequality incided on the direction, face of the light of display panels 28 and the film-form arranged, and has function light being spread in the in-plane direction when passing from the front surface 24b of light guide plate 24 with the light that the mode that face is irradiated is irradiated.
In addition, diffusion film 27 is arranged on the front surface 24b of light guide plate 24.That is, diffusion film 27 configures in the mode be sandwiched between the front surface 24b of light guide plate 24 and the rear side of display panels 28.
(display panels 28)
Display panels 28 has can from the viewing area of external visual identification by the display window 12a of fore shell 12.And, design temperature display part 28a, observed temperature display part 28b, state display part 28c and action button 28d is configured with in the viewing area of display panels 28.In addition, display panels 28 is electrically connected with control substrate 21 via upper and lower a pair elastomer connector 31 in fore shell 12.
Arranging under posture, design temperature display part 28a is configured in the position of the central portion on the viewing area of display panels 28 slightly by the right side, shows the target temperature of the workpiece inputted via action button 28d (controlled target temperature thing).In addition, design temperature display part 28a is by green display segment display numerical value.
Arranging under posture, observed temperature display part 28b is configured in the position of the upper end on the viewing area of display panels 28 slightly by the right side, shows the observed temperature of the workpiece detected by temperature sensor etc. (controlled target temperature thing).In addition, observed temperature display part 28b is by the display segment display numerical value of white.
Arranging under posture, the upper end of state display part 28c in the viewing area of display panels 28 is configured with 9 to the position kept left of pars intermedia, shows the various state such as switching-on and switching-off state, alarm.In addition, state display part 28c lights display with yellow respectively when showing projects.
In order to carry out the input of design temperature, the operation etc. of control module arranging under posture, the bottom of the front surface of temperature regulator 10 is provided with multiple action button 28d.
Here, design temperature display part 28a, observed temperature display part 28b, state display part 28c Show Color separately can be suitably changed by following method, such as, according to the method that the color of the light irradiated from light source portion (LED) changes, changed the method for the color of light by the part dyeing of the glass substrate to diffusion film 27 and/or display panels 28.Like this, shown by each display part of different Color pair, just easily can identify the displaying contents of each display part.
In addition, driven by the system of the control substrate 21 being configured in the rear side of display panels 28, carry out the display of the design temperature display part 28a in the viewing area of display panels 28, observed temperature display part 28b and state display part 28c.
That is, in display unit 20, receive and action button 28d is operated and the operation signal that generates by controlling substrate 21, numerical monitor design temperature in design temperature display part 28a.More particularly, by controlling the control of substrate 21 pairs of display panels 28, by irradiating and the illumination light of irradiating in the mode that face is irradiated from the front surface 24b of light guide plate 24 from LED22a, 22b, from rear side through and the display segment that the carrying out of design temperature display part 28a is shown show, numerical monitor is carried out to design temperature.
On the other hand, about the Current Temperatures of workpiece becoming controlled target temperature, control substrate 21 and receive via controlling base board unit 30 signal representing the observed temperature sent from temperature sensor etc., thus, make the observed temperature of display panels 28 numerical monitor workpiece.More particularly, by controlling the control of substrate 21 pairs of display panels 28, by irradiating and the illumination light of irradiating in the mode that face is irradiated from the front surface 24b of light guide plate 24 from LED22a, 22b, from rear side through and the display segment that the carrying out of observed temperature display part 28b is shown show, numerical monitor is carried out to observed temperature.
Here, the light irradiated from LED22a, 22b incides inside from the side 24a of light guide plate 24, is imported to the front surface 24b of light guide plate 24 by reflective film 23 and/or reflection framework 26 etc.Further, the light irradiated in the mode that face is irradiated from front surface 24b is diffused by diffusion film 27, is irradiated to display panels 28 from rear side.
Thereby, it is possible to make design temperature display part 28a, the observed temperature display part 28b and state display part 28c of display panels 28 carry out display segment display to numeral or word etc.Thus, operator just can see design temperature, observed temperature, state display etc. shown on the display panels 28 of display unit 20.
In the temperature regulator 10 of present embodiment, in order to the front surface relative with display panels 28 from light guide plate 24 irradiates uniform light in the mode that face is irradiated, possesses following structure.
That is, it is inner that the light irradiated from LED22a, 22b incides light guide plate 24 from the side 24a of light guide plate 24.Further, the light incided in light guide plate 24 is reflected while enter the inside of light guide plate 24 between 24d and front surface 24b overleaf.
Temperature regulator 10 according to the present embodiment, is arranged on LED22a, 22b on the end controlling substrate 21 side 24a irradiation light to the light guide plate 24 of relative configuration.The mode that the light of 24a incidence from the side irradiates from the front surface 24b of light guide plate 24 with face is irradiated, and enters display panels 28 side.
Thus, the front surface 24b of light guide plate 24 plays the function of the backlight of display panels 28, can from the viewing area of rear side irradiating liquid crystal display panel 28.Its result, owing to can extend the optical path length from LED22a, 22b to the viewing area of display panels 28, so can be converted to the light from the front surface 24b of light guide plate 24 roughly uniform irradiation by the some light irradiated from LED22a, 22b.
Other embodiments
Be described above an embodiment of the invention, but the invention is not restricted to above-mentioned embodiment, various change can be carried out within a range not departing from the gist of the invention.
(A)
In the above-described embodiment, as the teat 25 outstanding by Control-oriented substrate 21 side controlling substrate 21 side from light guide plate 24, be illustrated for a part for the light guide plate being formed as right-angle triangle in sectional view.But the present invention is not limited to this.
Such as, as the shape of teat, being not limited to the right-angle triangle in sectional view, also can be the part with other section shapes.
(B)
In the above-described embodiment, as the reflecting part arranged between substrate 21 in light guide plate 24 and controlling, enumerate and be used in the example that surface has a reflective film 23 of the film-form of reflecting surface and be illustrated.But, the present invention is not limited thereto.
Reflecting part is not limited to the parts of film-form, such as, also can be used as reflecting part by applying on substrate to the part of the coating that light reflects or the reflecting part that arranges by printing etc.
(C)
In the above-described embodiment, as light source portion, enumerate the example being used in two LED22a, 22b that the end of control substrate 21 is arranged and be illustrated.But, the present invention is not limited thereto.
Such as, as the light source beyond LED, cold-cathode tube (CCFL) etc. can be used.
And then the number of LED can be 1, also can be more than 3.
(D)
In the above-described embodiment, as light source portion, enumerate and irradiated and example of LED22a, 22b of white light that visual identification high higher than the illuminance of other colors when flowing through same current and be illustrated.But, the present invention is not limited thereto.
Such as, the color LED irradiating the colored light such as red, green or yellow can also be used.In addition, when substrate arranges multiple LED, in order to distinguish different viewing areas by color, the LED of different colours can be configured.
(E)
In the above-described embodiment, being illustrated with the example controlling the back side 24d that is oppositely disposed of substrate 21 and be formed with round dot pattern (anaclasis portion) in light guide plate 24 has been enumerated.But, the present invention is not limited thereto.
Such as, in order to improve the homogeneity of the light irradiated in the mode that face is irradiated from the front surface 24b of light guide plate 24, the face being formed with round dot pattern (anaclasis portion) is not limited to back side 24d, also can be other the face forming light guide plate 24.
(F)
In the above-described embodiment, as the display panel of temperature regulator 10, enumerate and used the example of display panels 28 to be illustrated.But, the present invention is not limited thereto.
Such as, other display panels such as organic EL panel (organic electroluminescence panel) also can be used as display panel.
(G)
In the above-described embodiment, as being provided with the electronic equipment of an embodiment of the invention, the opertaing device of display device, the example having enumerated temperature regulator 10 is illustrated.But, the present invention is not limited thereto.
Such as, as electronic equipment, except temperature regulator, can also be timer, counter etc.In addition, as opertaing device, as long as show the opertaing device that numerical value carries out various control, be not limited to temperature regulator, various opertaing device can be widely used in.
Utilizability in industry
Compared with the past, electronic equipment of the present invention can be taken into the light irradiated from light source portion expeditiously, can improve the utilization ratio of light, so in can being widely used in possessing the electronic equipment of light source portion etc.
Claims (9)
1. an electronic equipment, is characterized in that, possesses:
Substrate,
Light source portion, installs on the substrate, and light is irradiated on the surface along described substrate,
Plane reflecting part, arranges the position adjacent with described light source portion on the substrate in the mode separating predetermined distance with described light source portion, for the direction reflected light intersected with described substrate, and
Flat light guide plate, be configured on described reflecting part, and there is teat, described teat is projected into be penetrated in the gap that formed between the end face of the end face of side and the relative with this end face of described light source portion of described reflecting part in the illumination of described light source portion, and this light guide plate is taken into the light that irradiates from described light source portion from the side comprising described teat and light-emitting area in the side contrary with described reflecting part side is luminous in the mode of face luminescence.
2. electronic equipment according to claim 1, is characterized in that, described teat has dip plane, and described dip plane is from described light source portion side towards described reflecting part side, and the direction left to the surface from described substrate tilts.
3. electronic equipment according to claim 2, is characterized in that, described dip plane has relative to the surface of described substrate and is being greater than 0 degree and degree of tilt in scope below 45 degree.
4. the electronic equipment according to any one of claims 1 to 3, is characterized in that, described teat is from the giving prominence to towards described substrate-side by described reflecting part side of described light guide plate, and overhang is the thickness of described reflecting part.
5. the electronic equipment according to any one of Claims 1 to 4, is characterized in that, described teat is projected into the surface of described substrate in the mode in the front covering the opening portion for irradiating light of described light source portion.
6. the electronic equipment according to any one of Claims 1 to 5, it is characterized in that, described light guide plate also has incised notch portion, described incised notch portion is formed in the side by described light source portion side of described light guide plate and the part of described light-emitting area intersection, and described incised notch portion makes a part for described light-emitting area recessed.
7. electronic equipment according to claim 6, is characterized in that, also possesses:
Reflection framework, surrounds the periphery of the side of described light guide plate, and is configured in and is formed in the described incised notch portion of described light guide plate, make the light of the inside being taken into described light guide plate in the internal reflection of described light guide plate.
8. a display device, is characterized in that, possesses:
Electronic equipment according to any one of claim 1 ~ 7, and
Display panel, the illuminated light sent in the mode of face luminescence from described light guide plate.
9. an opertaing device, is characterized in that, possesses:
Display device according to claim 8, and
Input part, inputs various setting according to the measured value shown in described display device, setting value.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014038506A JP2015162429A (en) | 2014-02-28 | 2014-02-28 | Electronic equipment, display device provided with the same, and control equipment |
| JP2014-038506 | 2014-02-28 |
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| CN104880858A true CN104880858A (en) | 2015-09-02 |
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| CN201410474718.4A Pending CN104880858A (en) | 2014-02-28 | 2014-09-17 | Electronic device, and display device and control device having the same |
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| Country | Link |
|---|---|
| JP (1) | JP2015162429A (en) |
| KR (2) | KR20150102673A (en) |
| CN (1) | CN104880858A (en) |
| TW (1) | TWI551923B (en) |
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| KR102565085B1 (en) * | 2016-10-31 | 2023-08-10 | 엘지디스플레이 주식회사 | Liquid crystal display device |
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Also Published As
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| JP2015162429A (en) | 2015-09-07 |
| TWI551923B (en) | 2016-10-01 |
| TW201533509A (en) | 2015-09-01 |
| KR20160067077A (en) | 2016-06-13 |
| KR20150102673A (en) | 2015-09-07 |
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